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Amicus Therapeutics

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FY2020 Annual Report · Amicus Therapeutics
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EXTRAORDINARY 
PATIENT  
FOCUS.
2020

A N N U A L   R E P O R T

Noah, Age 10

Whitby, Ontario

Living with Pompe Disease

 
A R    RE 
COMPANY. 

Amicus Therapeutics is a global, patient-
dedicated biotechnology company

focused on discovering, developing and 
delivering high-quality medicines for people 
living with rare metabolic diseases.

As of December 31, 2020

~$261M 

NET PRODUCT SALES

GLOBAL
FOOTPRINT

ROBUST PIPELINE 

OF PROGRAMS FOR  
RARE METABOLIC DISEASES

$483M 

CASH ON HAND

480+ 

DEDICATED EMPLOYEES

FIRST ORAL PRECISION 
MEDICINE FOR FABRY DISEASE:

GALAFOLD

Kiera, Age 14

Dexter, MI

Living with CDKL5 Deficiency Disorder

 
 
Our dedication to patients goes 
hand in hand with our commitment 
to our environmental, social and 
governance (ESG) responsibilities.

Building strong ESG practices and oversight into our scientific and business 
activities creates a culture of integrity at every level of our organization 
while safely and effectively delivering on our founding beliefs: 

Be at the forefront of  
therapies for rare and 
orphan diseases

Create long-term 
value for our  
stakeholders

Foster teamwork and 
respect for individual 
contributions 

To access the full ESG report, please visit the Responsibility section of our corporate website.

R E S P O N S I B I L I T Y

Diversity, Equity, Inclusion

Our "Three Pillars of DEI" are interwoven into Amicus culture.  For our employees, 

these three pillars are a touchstone for inspiration, guidance and encouragement.

PEOPLE 

PATIENTS  

PHILANTHROPY  

Embed DEI into activities of our 
business units, Amicus Belief 
Statement, and Mission- 
focused Behaviors 

Ensure diverse representation in 
next generation Talent initiatives 

Attract talent through a diverse  
lens (candidate slates, interview 
teams, inclusive hiring processes) 

Ensure diversity in Board of 
Directors and Senior Leadership 
Team representation

Ensure diverse representation 
in our clinical trials 

Support non-profits that  
impact diverse communities 

Create patient education to 
impact health literacy 

Address the impact of 
socioeconomics and access 
through advocacy

Work towards global access 
to treatments for patients

Invest in the next generation of 
innovators through partnerships 
with STEM programs

Build awareness of rare  
diseases as diverse populations 

Galafold® Remains Cornerstone of Amicus’ Success

◻

◻

◻

1,400+ patients and ~$261M global sales in FY20 

FY21 revenue guidance of $300M-$315M

$1B+ addressable market opportunity at peak

AT-GAA in Pompe: Potential to Become Standard of Care

◻

◻

◻

Advancing key global regulatory submissions for approval throughout 2021

150+ Pompe patients treated with AT-GAA by YE20

$1B-$2B+ market opportunity 

Advancing Our Industry Leading Rare Disease  
Gene Therapy Portfolio

◻

◻

◻

Gene therapy platform with rights to 50+ lysosomal  
disorders and 12 additional rare diseases

Two clinical-stage gene therapy programs in CLN6  
and CLN3 Batten disease

$1B+ peak recurring market opportunity

A leading, fully integrated, global rare
disease biotechnology company

DISCOVERY

PRECLINICAL

PHASE 1/2

PHASE 3

REGULATORY

COMMERCIAL

Megan Crowley, Age 24

Princeton, NJ

Living with Pompe Disease

FABRY FRANCHISE

Galafold® (migalastat) monotherapy 

Fabry Gene Therapy

POMPE FRANCHISE

AT-GAA (Novel ERT + Enzyme Stabilizer)

Pompe Gene Therapy

ADDITIONAL GENE THERAPY PROGRAMS

CLN6 Batten Disease

CLN3 Batten Disease

CLN1 Batten Disease

NEXT-GENERATION RESEARCH PROGRAMS AND CNS GENE THERAPIES

CDKL5 Deficiency Disorder GTx / ERT

Angelman Syndrome

Others

MPS FRANCHISE

Mepsevii™ (vestronidase alfa) (Japan only)

Next-generation MPSIIIA

MPSIIIB

 
 
 
 
 
 
 
 
 
 
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 

For the fiscal year ended December 31, 2020  

OR 

 

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

For the transition period from 

to 

Commission file number 001-33497 

Amicus Therapeutics, Inc. 
(Exact Name of Registrant as Specified in Its Charter) 

Delaware 

(State or Other Jurisdiction of 
Incorporation or Organization) 

3675 Market Street,  Philadelphia,  PA 
(Address of Principal Executive Offices) 

71-0869350 
(I.R.S. Employer 
Identification Number) 

19104 
(Zip Code) 

(215) 921-7600 

(Registrant's Telephone Number, Including Area Code) 

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

Title of each class 

Trading Symbol(s) 

Name of each exchange on which registered 

Common Stock, par value $0.01 per share 

FOLD 

NASDAQ Global Market 

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

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No  
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes   No ☒ 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 
during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements 
for the past 90 days.  Yes ☒  No  

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

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

Large accelerated filer 
Non-accelerated filer 

☒ 
 

Accelerated filer 
Smaller reporting company 

Emerging growth company 

 
 
 

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

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

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

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

The aggregate market value of the 255,379,926 shares of voting common equity held by non-affiliates of the registrant, computed by reference to the closing 
price as reported on The NASDAQ Global Market, as of the last business day of the registrant's most recently completed second fiscal quarter (June 30, 2020) 
was $3,851,129,284. Shares of voting and non-voting stock held by executive officers, directors, and holders of more than 10% of the outstanding stock have been 
excluded from this calculation because such persons or institutions may be deemed affiliates. This determination of affiliate status is not a conclusive determination 
for other purposes. 

The number of shares outstanding of the registrant's common stock, $0.01 par value per share, as of February 19, 2021 was 264,316,074 shares. 

DOCUMENTS INCORPORATED BY REFERENCE: Portions of the Proxy Statement for the registrant's 2021 Annual Meeting of Stockholders which is 

to be filed subsequent to the date hereof are incorporated by reference into Part III of this Annual Report on Form 10-K. 

 
 
 
 
 
 
 
Table of Contents

BUSINESS

Item 1.
Item 1A. RISK FACTORS
Item 1B. UNRESOLVED STAFF COMMENTS
Item 2.

PROPERTIES

Item 3.
LEGAL PROCEEDINGS
Item 4. MINE SAFETY DISCLOSURES

PART I

PART II

Item 5. MARKET FOR THE REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS 

AND ISSUER PURCHASES OF EQUITY SECURITIES

Item 6.
Item 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF 

SELECTED FINANCIAL DATA

OPERATIONS

Item 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Item 8.

FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND 
FINANCIAL DISCLOSURE

Item 9.

Item 9A. CONTROLS AND PROCEDURES
Item 9B. OTHER INFORMATION

PART III

Item 10. DIRECTORS, EXECUTIVE OFFICERS, AND CORPORATE GOVERNANCE
Item 11. EXECUTIVE COMPENSATION
Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND 

RELATED STOCKHOLDER MATTERS

Item 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE
Item 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

Item 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES
SIGNATURES

PART IV

5

30

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72

72

72

73

75

76

89

90

127

127

127

128

128

128

128

128

129

135

  We  have  filed  applications  to  register  certain  trademarks  in  the  United  States  and  abroad,  including  AMICUS 
THERAPEUTICS and design, AMICUS ASSIST and design, CHART and design, AT THE FOREFRONT OF THERAPIES 
FOR RARE AND ORPHAN DISEASES, HEALING BEYOND DISEASE, OUR GOOD STUFF, and Galafold® and design. 

 
Table of Contents

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains forward-looking statements that involve risks, uncertainties, and assumptions. 
Forward-looking statements are all statements, other than statements of historical facts, that discuss our current expectation and 
projections  relating  to  our  strategy,  future  operations,  future  financial  position,  future  revenues,  projected  costs,  prospects, 
plans,  and  objectives  of  management.  These  statements  may  be  preceded  by,  followed  by  or  include  the  words  "aim," 
"anticipate," "believe," "can," "could," "estimate," "expect," "forecast," "intend," "likely," "may," "outlook," "plan," "potential," 
"predict,"  "project,"  "seek,"  "should,"  "will,"  "would,"  the  negatives  or  plurals  thereof,  and  other  words  and  terms  of  similar 
meaning, although not all forward-looking statements contain these identifying words.

We  have  based  these  forward-looking  statements  on  our  current  expectations  and  projections  about  future  events. 
Although we believe that our assumptions made in connection with the forward-looking statements are reasonable, we cannot 
assure you that the assumptions and expectations will prove to be correct. You should understand that the following important 
factors could affect our future results and could cause those results or other outcomes to differ materially from those expressed 
or implied in our forward-looking statements:

•

•

•

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•

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•

•

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the  scope,  progress,  results  and  costs  of  our  clinical  trials  of  our  drug  candidates  and  gene  therapy  candidates, 
including but not limited to AT-GAA, CLN6 and CLN3;

the  cost  of  manufacturing  drug  supply  for  our  clinical  and  preclinical  studies,  including  the  cost  of  manufacturing 
Pompe Enzyme Replacement Therapy ("ERT" or "ATB200" or "cipaglucosidase alfa") and gene therapies;

the  future  results  of  on-going  preclinical  research  and  subsequent  clinical  trials  for  cyclin-dependent  kinase-like  5 
("CDKL5") deficiency disorder, Pompe gene therapy, Fabry gene therapy, Mucopolysaccharidosis Type IIIB ("MPS 
IIIB"), next generation Mucopolysaccharidosis Type IIIA ("MPS IIIA") and other pipeline candidates we may identify 
from time to time, including our ability to obtain regulatory approvals and commercialize these therapies and obtain 
market acceptance for such therapies;

the costs, timing, and outcome of regulatory review of our product candidates, including AT-GAA;

any changes in regulatory standards relating to the review of our product candidates;

the number and development requirements of other product candidates that we pursue;

the costs of commercialization activities, including product marketing, sales, and distribution;

the emergence of competing technologies and other adverse market developments;

our ability to successfully commercialize Galafold® (also referred to as "migalastat HCl") and, if our regulatory filings 
are accepted and approved, AT-GAA;

our ability to manufacture or supply sufficient clinical or commercial products, including Galafold®, AT-GAA and our 
gene therapy candidates;

our ability to obtain reimbursement for Galafold® and, if our regulatory filings are accepted and approved, AT-GAA;

our ability to satisfy post-marketing commitments or requirements for continued regulatory approval of Galafold®;

our ability to obtain market acceptance of Galafold® and, if our regulatory filings are accepted and approved, AT-
GAA;

the  costs  of  preparing,  filing,  and  prosecuting  patent  applications  and  maintaining,  enforcing,  and  defending 
intellectual property-related claims;

the extent to which we acquire or invest in businesses, products, and technologies;

our ability to successfully integrate our acquired products and technologies into our business, including the possibility 
that  the  expected  benefits  of  the  transactions  will  not  be  fully  realized  by  us  or  may  take  longer  to  realize  than 
expected;

our ability to establish collaborations, partnerships or other similar arrangements and to obtain milestone, royalty, or 
other payments from any such collaborators;

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Table of Contents

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•

•

•

our  ability  to  adjust  to  changes  in  the  European  and  United  Kingdom  markets  in  the  wake  of  the  United  Kingdom 
leaving the European Union; 

the extent to which our business could be adversely impacted by the effects of the novel coronavirus ("COVID-19") 
outbreak, including due to actions by us, governments, our customers or suppliers or other third parties to control the 
spread of COVID-19, or by other health epidemics or pandemics;

fluctuations in foreign currency exchange rates; and

changes in accounting standards.

In light of these risks and uncertainties, we may not actually achieve the plans, intentions or expectations disclosed in our 
forward-looking  statements,  and  you  should  not  place  undue  reliance  on  our  forward-looking  statements.  Actual  results  or 
events could differ materially from the plans, intentions, and expectations disclosed in the forward-looking statements we make. 
We have included important factors in the cautionary statements included in this Annual Report on Form 10-K, particularly in 
Part  I,  Item  1A  "—  Risk  Factors",  a  summary  of  which  may  be  found  below,  that  we  believe  could  cause  actual  results  or 
events to differ materially from the forward-looking statements that we make. Those factors and the other risk factors described 
herein are not necessarily all of the important factors that could cause actual results or developments to differ materially from 
those expressed in any of our forward-looking statements. Other unknown or unpredictable factors also could harm our results. 
Our  forward-looking  statements  do  not  reflect  the  potential  impact  of  any  future  acquisitions,  mergers,  dispositions,  joint 
ventures,  collaborations  or  investments  we  may  make.  Consequently,  there  can  be  no  assurance  that  actual  results  or 
developments anticipated by us will be realized or, even if substantially realized, that they will have the expected consequences 
to,  or  effects  on,  us.  Given  these  uncertainties,  investors  are  cautioned  not  to  place  undue  reliance  on  such  forward-looking 
statements.

You  should  read  this  Annual  Report  on  Form  10-K  and  the  documents  that  we  incorporate  by  reference  in  this  Annual 
Report  on  Form  10-K  completely  and  with  the  understanding  that  our  actual  future  results  may  be  materially  different  from 
what we expect. These forward-looking statements speak only as of the date of this report. We undertake no obligation, and 
specifically  decline  any  obligation,  to  publicly  update  or  revise  any  forward-looking  statements,  even  if  experience  or  future 
developments make it clear that projected results expressed or implied in such statements will not be realized, except as may be 
required by law.

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Table of Contents

Summary Risk Factors

The following is a summary of the principal risks that make an investment in our common stock speculative or risky. This 
summary  does  not  address  all  of  the  risks  that  we  face  and  is  qualified  in  its  entirety  by  reference  to  the  more  detailed 
descriptions  included  in  Part  I,  Item  1A  "—  Risk  Factors".  This  summary  should  be  read  together  with  those  more  detailed 
descriptions, along with our other SEC filings before making an investment decision.

• We  depend  heavily  on  sales  of  Galafold®  in  Europe,  the  U.S.  and  Japan.  If  we  are  delayed  or  unable  to  commercialize 

Galafold® successfully, our business could be materially harmed.
If we are not able to obtain, or delayed in obtaining, required regulatory approvals, we will not be able to commercialize 
our product or product candidates, material impairing our ability to generate revenue.

If we are unable to establish and maintain sales and marketing capabilities, or relationships, to market and sell our product 
or, if approved, product candidates, their commercialization may suffer.

If the market opportunities for our product or product candidates are smaller than we believe they are, then our revenues 
may be adversely affected, and our business may suffer.

•

•

•

• Galafold®  or  any  of  our  product  candidates  that  receive  regulatory  approval  may  fail  to  achieve  the  degree  of  market 

acceptance necessary for commercial success.

• We face substantial competition, which may result in others discovering, developing or commercializing products before or 

more successfully than we do.

• A variety of risks associated with international operations could adversely affect our business.

• The impact of Brexit on our international operations could have a material impact on our business.

• Our product or any product candidates receiving approval may become subject to unfavorable pricing regulations, third-

party coverage and reimbursement practices or healthcare reform initiatives.

•

If we are found to have promoted off-label uses by regulatory authorities, we may become subject to significant liability.

• Product  liability  lawsuits  against  us  could  cause  us  to  incur  substantial  liabilities  and  limit  commercialization  of  any 

products that we may develop.

•

If  applicable  regulatory  authorities  approve  generic  or  biosimilar  products  with  claims  that  compete  with  our  product  or 
any of our product candidates, it could reduce our sales.

• We may expend our limited resources to pursue a particular product, product candidate or indication and fail to capitalize 

on an alternative for which there is a greater likelihood of success.

• Our product or product candidates may cause undesirable side effects or have other properties that could delay or prevent 

their regulatory approval or commercialization.

• Any product or product candidate we obtain marketing approval for could be subject to restrictions or withdrawal from the 

market and we may be subject to penalties or enforcement actions if we fail to comply with regulatory requirements.

• Certain  relationships  will  be  subject  to  applicable  anti-kickback,  fraud  and  abuse,  anti-bribery  and  corruption  and  other 
healthcare  laws  and  regulations,  which  could  expose  us  to  criminal  sanctions,  civil  penalties,  contractual  damages, 
reputational harm and diminished profits and future earnings.

•

•

•

•

•

If clinical trials of our product candidates do not produce results satisfactory to regulatory authorities, the development and 
commercialization of our product candidates may not be completed.

If  we  experience  unforeseen  events  in  connection  with  our  clinical  trials,  potential  regulatory  approval  or 
commercialization of our product candidates could be delayed or prevented.

If we experience delays or difficulties in the enrollment of patients in our clinical trials, our receipt of necessary regulatory 
approvals could be delayed or prevented.

Initial  results  from  a  clinical  trial  do  not  ensure  that  the  trial  will  be  successful  and  success  in  preclinical  or  early  stage 
clinical trials does not ensure success in later-stage clinical trials.
If our competitors obtain orphan drug exclusivity for their products and we do not, we may not unable to have competing 
products approved in the applicable jurisdiction for a significant period of time.

• Failure to obtain or maintain regulatory approval outside the U.S. would prevent us from marketing our products abroad.
• Our business activities involve the use of hazardous materials which could subject us to significant adverse consequences if 

we fail to comply with the applicable laws regulating their use.

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Table of Contents

•

If we are unable to obtain marketing approval, or if approved unable to successfully commercialize AT-GAA, our business 
could be materially harmed.

• Our gene therapy product candidates are based on novel technologies, which makes it difficult to predict the time and cost 

of their development and subsequently obtaining regulatory approval.

• We may encounter difficulties manufacturing our gene therapy which could impact timing and availability of clinical and 

commercial supply.

• Use of third parties to manufacture our product or product candidates may increase the risk that we will not have sufficient 
quantities  of  our  product  or  product  candidates  or  such  quantities  at  an  acceptable  cost,  which  could  delay,  prevent  or 
impair our development or commercialization efforts.

• We rely on third parties to conduct certain preclinical development activities and our clinical trials, and those third parties 

may not perform satisfactorily.

• We may not be successful in maintaining or establishing collaborations, which could adversely affect our ability to develop 

and, particularly in international markets, commercialize products.

• Materials  necessary  to  manufacture  our  product  or  product  candidates  may  not  be  available  on  commercially  reasonable 

terms, which may delay their development and commercialization.

• Manufacturing issues may arise that could increase costs or delay commercialization.

• We have incurred significant losses and anticipate that we will continue to incur losses in the future.

• We may never become profitable even though we currently generate revenue from the sale of products.

•

If  we  require,  and  fail  to  obtain,  additional  necessary  financing,  we  may  be  unable  to  complete  the  development  and 
commercialization of our product and product candidates.

• Raising additional capital may cause dilution to our existing stockholders, restrict our operations, or require us to relinquish 

rights to our technologies, Galafold® or product candidates.

• We may not have sufficient cash flow from our business to pay our substantial debt.

• Foreign currency exchange rate fluctuations could harm our financial results.

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

• Our executive officers, directors and principal stockholders maintain the ability to exert significant influence and control 

over matters submitted to our stockholders for approval.

• Because  we  do  not  anticipate  paying  any  cash  dividends  on  our  capital  in  the  foreseeable  future,  capital  appreciation,  if 

any, will be our stockholders sole source of gain.

•

If we are unable to obtain and maintain sufficiently broad patent protection, our ability to successfully commercialize our 
technology and products may be adversely affected.

• We may become involved in lawsuits to protect or enforce our patents or other intellectual property.

• Third  parties  may  initiate  legal  proceedings  alleging  that  we  are  infringing  their  intellectual  property  rights  which  could 

have a material adverse effect on the success of our business.

• We  may  be  subject  to  claims  by  third  parties  asserting  that  we  or  our  employees  have  misappropriated  their  intellectual 

property, or claiming ownership of what we regard as our own intellectual property.

•

If we fail to comply with our obligations in our intellectual property licenses with third parties, we could lose license rights 
that are important to our business.

• Failure to secure trademark registrations could adversely affect our business.

• Our  rights  to  develop  and  commercialize  our  gene  therapy  product  candidates  are  subject,  in  part,  to  the  terms  and 

conditions of licenses granted to us by others.

• The novel coronavirus ("COVID-19") pandemic may negatively impact our business and operations.

• Our future success depends on our ability to retain key executives and to attract, retain and motivate qualified personnel.

• We expect to expand our development, regulatory and sales and marketing capabilities, and as a result, we may encounter 

difficulties in managing our growth, which could disrupt our operations.

• Our  employees,  independent  contractors,  principal  investigators,  consultants  and  vendors  may  engage  in  misconduct  or 

•

improper activities which could lead to significant liability and harm our reputation.
If  our  enterprise  risk  program,  global  risk  committee  and  other  compliance  methods  are  not  effective,  our  business, 
financial condition and operating results may be adversely affected.

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Table of Contents

Item 1.    BUSINESS

Overview

PART I

We  are  a  global,  patient-dedicated  biotechnology  company  focused  on  discovering,  developing,  and  delivering  novel 
medicines for rare diseases. We have a portfolio of product opportunities led by the first, oral monotherapy for Fabry disease 
that has achieved widespread global approval, a differentiated biologic for Pompe disease, and an industry leading rare disease 
gene therapy portfolio.

The cornerstone of our portfolio is Galafold® (also referred to as "migalastat"), the first and only approved oral precision 
medicine for people living with Fabry disease who have amenable genetic variants. Migalastat is currently approved under the 
trade  name  Galafold®  in  the  United  States  ("U.S."),  European  Union  ("E.U."),  United  Kingdom  ("U.K."),  and  Japan,  with 
multiple additional approvals granted and applications pending in several geographies around the world. 

The lead biologics program of our pipeline is Amicus Therapeutics GAA ("AT-GAA", also known as ATB200/AT2221, or 
cipaglucosidase  alfa/miglustat),  a  novel,  clinical-stage,  potential  best-in-class  treatment  paradigm  for  Pompe  disease.  In 
February 2019, the U.S. Food and Drug Administration ("FDA") granted Breakthrough Therapy designation ("BTD") to AT-
GAA for the treatment of late onset Pompe disease. We initiated the rolling Biologic License Application ("BLA") submission 
to the FDA in the fourth quarter of 2020.

We have established an industry leading gene therapy portfolio of potential therapies for people living with rare metabolic 
diseases, through a license with Nationwide Children's Hospital ("Nationwide Children’s") and an expanded collaboration with 
the University of Pennsylvania ("Penn"). Our pipeline includes gene therapy programs in rare, neurologic lysosomal disorders 
("LDs"),  specifically:  CLN6,  CLN3,  and  CLN1  Batten  disease,  Pompe  disease,  Fabry  disease,  CDKL5  deficiency  disorder 
("CDD"),  Mucopolysaccharidosis  Type  IIIB  ("MPS  IIIB"),  as  well  as  a  next  generation  program  in  Mucopolysaccharidosis 
Type IIIA ("MPS IIIA"). Our expanded collaboration with Penn also provides us with exclusive disease-specific access and the 
option  rights  to  develop  potentially  disruptive  new  gene  therapy  platform  technologies  and  programs  for  most  LDs  and  a 
broader  portfolio  of  more  prevalent  rare  diseases,  including  Rett  Syndrome,  Angelman  Syndrome,  Myotonic  Dystrophy,  and 
select  other  muscular  dystrophies.  In  the  first  quarter  of  2020,  the  FDA  granted  Fast  Track  designation  to  the  CLN3  Batten 
disease gene therapy, AT-GTX-502, for the treatment of pediatric patients less than 18 years of age. In September 2020 and 
February  2021,  the  European  Medicines  Agency  ("EMA")  granted  Priority  Medicines  ("PRIME")  designation  and  the  FDA 
granted  Fast  Track  designation,  respectively,  to  the  CLN6  Batten  disease  gene  therapy,  AT-GTX-501,  for  the  treatment  of 
patients with variant late infantile neuronal ceroid lipofuscinosis 6 ("vLINCL6").

In  July  2020,  we  entered  into  a  definitive  agreement  for  a  $400  million  credit  facility  with  Hayfin  Capital  Management 
(“Senior Secured Term Loan due 2026”) with an interest rate equal to 3-month LIBOR, subject to a 1% floor, plus 6.5% per 
annum  and  requires  interest-only  payments  until  mid-2024  and  matures  in  six  years  in  2026.  This  transaction  resulted  in  net 
proceeds of $385.9 million, after deducting fees and expenses. There were no warrants or equity conversion features associated 
with the Senior Secured Term Loan due 2026. Additionally, we used $156.3 million of the proceeds to voluntarily settle the 
principal  amount,  accrued  interest,  and  early  settlement  premiums  of  the  Senior  Secured  Term  Loan  with  BioPharma  Credit 
PLC that was due in 2023 ("Senior Secured Term Loan due 2023"). 

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Our Strategy

Our strategy is to create, manufacture, test, and deliver the highest quality medicines for people living with rare metabolic 
diseases  through  internally  developed,  acquired,  or  in-licensed  products  and  product  candidates  that  have  the  potential  to 
obsolete current treatments, provide significant benefits to patients, and be first- or best-in-class. In addition to our programs in 
Fabry  and  Pompe  diseases,  we  are  leveraging  our  global  capabilities  to  develop  and  expand  our  robust  pipeline  in  genomic 
medicine. We have made significant progress toward fulfilling our vision of building a leading global biotechnology company 
focused on rare metabolic diseases. 

Our  operations  have  not  been  significantly  impacted  from  the  novel  coronavirus  (“COVID-19”)  pandemic  in  2020; 
however,  we  observed  increased  lag  times  between  patient  identification  and  Galafold®  initiation  due  to  the  resurgence  of 
COVID-19  in  the  fourth  quarter.  We  have  maintained  operations  in  all  geographies,  secured  our  global  supply  chain  for  our 
commercial  and  clinical  products,  as  well  as  maintained  the  operational  integrity  of  our  clinical  trials,  with  minimum 
disruptions. Our ability to continue to operate without any significant disruptions will depend on the continued health of our 
employees, the ongoing demand for Galafold® and the continued operation of our global supply chain. We have continued to 
provide uninterrupted access to medicines for those in need of treatment, while prioritizing the health and safety of our global 
workforce. However, our results of operations in future periods may be negatively impacted by unknown future impacts from 
the COVID-19 pandemic.

Highlights of our progress include:

•

•

•

Commercial  and  regulatory  success  in  Fabry  disease.  For  the  year  ended  December  31,  2020,  Galafold®  revenue 
totaled $260.9 million, an increase of $78.6 million compared to the prior year. We continue to see strong commercial 
momentum and expansion into additional geographies. In countries where we have been operating the longest, such as 
Germany and the U.K., we see an increasing proportion of previously untreated patients come onto Galafold®. In the 
U.S., we continue to see a significant increase in patients from a growing and very wide prescriber base. Across all 
markets, we see a high rate of compliance and adherence to this oral treatment option. 

Pompe  clinical  program  milestones.  In  December  2020,  we  completed  last  patient,  last  visit  in  our  global  Phase  3 
pivotal study of AT-GAA (ATB200-03, also known as "PROPEL") with 123 patients at 62 sites in 24 countries and 
initiated  the  rolling  BLA  submission  to  the  FDA  for  AT-GAA.  In  February  2021,  we  subsequently  reported  topline 
results for the PROPEL study. Additionally, in 2020, orphan drug designation was received in Japan and the British 
Medicines and Healthcare Products Regulatory Agency issued a Promising Innovative Medicine ("PIM") designation 
for AT-GAA for the treatment of late-onset Pompe disease. Previously, the U.S. FDA granted BTD for AT-GAA for 
the treatment of late-onset Pompe disease. 

Pipeline advancement and growth. We have established an industry leading gene therapy portfolio of medicines for 
people  living  with  rare  metabolic  diseases  through  a  license  with  Nationwide  Children’s  and  an  expanded 
collaboration with Penn. During the first quarter of 2020, we initiated the long-term follow-up of the initial participants 
in the CLN6 Phase 1/2 study. In October 2020, we reported additional positive interim safety and efficacy data in our 
ongoing CLN6 clinical study. Additionally, the research collaboration with Penn was expanded to pursue research and 
development  of  novel  gene  therapies  for  Pompe  disease,  Fabry  disease,  CDD,  CLN1,  MPS  IIIB,  as  well  as  a  next 
generation program in MPS IIIA. 

• Manufacturing.  We  continued  to  manufacture  our  Pompe  biologic  at  commercial  scale  (1,000L)  for  our  clinical 
studies,  including  our  pivotal  PROPEL  study,  and  early  commercial  inventory.  Our  supply  agreement  with  WuXi 
Biologics and current capacity are expected to produce sufficient quantities to support commercial needs after receipt 
of applicable regulatory approvals if obtained. For gene therapy, we are working with our strategic partners to support 
our  clinical  manufacturing  capabilities.  During  2020  and  thus  far  in  2021,  our  global  supply  chains  have  not  been 
interrupted and we have thus far maintained our ability to manufacture Galafold® as well as our clinical supply during 
the COVID-19 pandemic.

•

Financial  strength.  Total  cash,  cash  equivalents,  and  marketable  securities  as  of  December  31,  2020  was  $483.3 
million. Based on current operating models, we believe that the current cash position, which includes the net proceeds 
from the Senior Secured Term Loan due 2026 and expected revenues is sufficient to fund our operations and ongoing 
research programs to achieve self-sustainability. Potential impacts of the COVID-19 pandemic, business development 

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collaborations,  pipeline  expansion,  and  investment  in  manufacturing  capabilities  could  impact  our  future  capital 
requirements.

Our Commercial Product and Product Candidates

Galafold® (Migalastat HCl) for Fabry Disease

Our oral precision medicine Galafold® was granted accelerated approval by the FDA in August 2018 under the brand name 
Galafold® for the treatment of adults with a confirmed diagnosis of Fabry disease and an amenable galactosidase alpha gene 
("GLA") variant based on in vitro assay data. The FDA approved Galafold® for 348 amenable GLA variants. Galafold® was 
approved in the E.U. and U.K. in May 2016 as a first-line therapy for long-term treatment of adults and adolescents, aged 16 
years and older, with a confirmed diagnosis of Fabry disease and who have an amenable mutation (variant). The approved E.U. 
and U.K. labels include 1,384 mutations amenable to Galafold® treatment, which represent up to half of all patients with Fabry 
disease. In countries where mutations are provided only on the amenability website, these 1,384 amenable mutations are now 
available. Marketing authorization approvals have been granted in over 40 countries around the world, including the U.S., E.U., 
U.K., Japan, and others. We plan to continue to launch Galafold® in additional countries during 2021. 

As an orally administered monotherapy, Galafold® is designed to bind to and stabilize an endogenous alpha-galactosidase 
A ("alpha-Gal A") enzyme in those patients with genetic variants identified as amenable in a GLP cell-based amenability assay. 
Galafold® is an oral precision medicine intended to treat Fabry disease in patients who have amenable genetic variants, and at 
this time, it is not intended for concomitant use with ERT. 

Gene Therapy for Fabry Disease

We are committed to continued innovation for all people living with Fabry disease. For people living with Fabry disease 
who have non-amenable variants, which are not suitable for Galafold® as a monotherapy, our strategy is to develop a Fabry 
gene therapy. In October 2018, we expanded our gene therapy portfolio through a collaboration agreement with Penn to pursue 
research  and  development  of  novel  gene  therapies,  including  Fabry  disease,  and  other  indications.  In  October  2019,  we 
disclosed  preliminary  data  from  a  Fabry  adeno-associate  viral  ("AAV")  gene  therapy  using  an  Amicus-engineered  transgene 
that demonstrated high levels of GLA activity and robust GL-3 reduction in a mouse model of Fabry disease. In February 2021, 
we presented initial preclinical data from our investigational AAV gene therapy program. This initial preclinical study assessed 
a range of single doses of AAV in Gla knockout mice with either wild-type hGLA (“unmodified hGLA”) or an Amicus/Penn 
engineered  hGLA  transgenes  (“engineered  hGLA”  or  “AT-GTX-701”).  The  engineered  hGLA  AAV  gene  therapy 
demonstrated stable homodimer formation, enhanced temperature, plasma and neutral ph stability compared to the unmodified 
hGLA AAV gene therapy. In the lowest tested dose of AT-GTX-701, Gla knockout mice showed partial substrate reduction, 
while highest tested dose resulted in near complete substrate reduction. Additionally, AT-GTX-701 demonstrated significantly 
greater lyso-Gb3/GL-3 substrate reduction across all Fabry disease relevant tissues including the dorsal root ganglia (“DRG”), 
kidney,  and  heart,  with  reductions  at  low  dose  being  equal  to  or  greater  than  the  reductions  observed  at  higher  doses  with 
wildtype transgene and provided the first evidence for DRG storage reduction in a Fabry mouse model treated with an AAV 
gene therapy.

Fabry Disease Background

Patients with Fabry disease have an inherited deficiency of the alpha-Gal A enzyme that would normally degrade the lipid 
substrate globotriaosylceramide in the lysosome. Genetic variants that cause changes in the amino acid sequence of alpha-Gal A 
result  in  an  unstable  enzyme  that  does  not  efficiently  fold  into  its  correct  three-dimensional  shape  and  cannot  be  trafficked 
properly  in  the  cell,  even  if  it  has  the  potential  for  biological  activity.  Galafold®  is  an  oral  small  molecule  pharmacological 
chaperone  that  is  designed  to  bind  to  and  stabilize  a  patient’s  own  endogenous  target  protein.  This  is  considered  a  precision 
medicine because Galafold® targets only patients with GLA variants amenable to Galafold®.

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Fabry disease is an X-linked disease caused by mutations in the GLA gene, which encodes the alpha-Gal A enzyme. These 
mutations can cause alpha-Gal A to be either absent or deficient. When alpha-Gal A is absent or deficient the substrates, GL-3 
and  lyso-Gb3  accumulate,  leading  to  damage  of  cells  within  affected  parts  of  the  individual's  body  and  causing  the  various 
pathologies  seen  in  Fabry  disease.  Fabry  disease  leads  to  progressive,  irreversible  organ  damage,  typically  involving  the 
nervous,  cardiac,  and  renal  systems,  as  well  as  multiple  other  tissues.  The  symptoms  can  be  severe,  differ  from  patient  to 
patient,  and  begin  at  an  early  age,  resulting  in  significant  clinical,  humanistic,  and  healthcare  costs.  Fabry  disease  requires 
lifelong medical intervention to manage the complications of this devastating disease across multiple organ systems.

Fabry disease is a relatively rare disorder. The annual incidence of Fabry disease in newborn males has been historically 
estimated  to  be  1:40,000-1:60,000  (Journal  of  the  American  Medical  Association  January  1999  and  The  Metabolic  and 
Molecular  Bases  of  Inherited  Disease  8th  edition  2001).  However,  more  recent  newborn  screening  studies  in  Italy,  Taiwan, 
Austria, Spain and the U.S., which collectively screened more than 500,000 male and female newborns, found the incidence of 
GLA  mutations  to  be  between  1:2,445  to  1:8,454,  more  than  ten  times  higher  than  previous  estimates  for  classic  patients 
(American Journal of Human Genetics 2006, Human Mutation 2009, the Lancet 2011, Journal of Pediatrics 2017, and JAMA 
Pediatrics 2018). When looking at only male newborns within these studies, the incidence of Fabry disease mutations is as high 
as  1:1,316  –  1:7,575  (Circulation  in  Cardiovascular  Genetics  2009,  American  Journal  of  Human  Genetics  2006,  European 
Journal of Pediatrics 2017).

We believe that approximately 35-50% of the Fabry disease patient population may benefit from treatment with Galafold® 
as  a  monotherapy.  Additionally,  we  expect  that  as  awareness  of  late-onset  symptoms  of  Fabry  disease  grows,  the  number  of 
patients  diagnosed  with  the  disease  will  increase.  Increased  awareness  of  Fabry  disease,  particularly  for  specialists  not 
accustomed to treating Fabry disease patients, may lead to increased testing and diagnosis of patients with the disease.

Currently,  two  other  products,  both  ERTs,  are  approved  for  the  treatment  of  Fabry  disease:  agalsidase  beta  by  Sanofi 

Aventis and agalsidase alfa by Takeda, the latter of which is not approved in the U.S. 

Novel ERT for Pompe Disease

We are leveraging our biologics capabilities to develop AT-GAA, a novel treatment paradigm for Pompe disease. AT-GAA 
consists of a uniquely engineered rhGAA enzyme, ATB200, or cipaglucosidase alfa, with an optimized carbohydrate structure 
to enhance lysosomal uptake, administered in combination with AT2221, or miglustat, that functions as an enzyme stabilizer. 

The small molecule enzyme stabilizer, miglustat or AT2221, binds to and stabilizes ATB200, or cipaglucosidase alfa, in 
circulation  to  improve  the  uptake  of  active  enzyme  in  key  disease-relevant  tissues,  resulting  in  increased  clearance  of 
accumulated  substrate,  glycogen.  Miglustat  is  not  an  active  ingredient  that  contributes  directly  to  substrate  reduction 
("glycogen"). 

We  initiated  ATB200-03  (or  "PROPEL"),  a  global  Phase  3  clinical  study  of  AT-GAA  in  adult  patients  with  late  onset 
Pompe  disease  in  December  2018  and  completed  last  patient,  last  visit  in  December  2020.  In  February  2021,  we  reported 
topline results from the Phase 3 PROPEL study.

Patients enrolled in PROPEL were randomized 2:1 so that for every two patients randomized to be treated with AT-GAA, 
one  was  randomized  to  be  treated  with  alglucosidase  alfa.  Of  the  Pompe  patients  enrolled,  77%  were  being  treated  with 
alglucosidase alfa (n=95) immediately prior to enrollment (“Switch”) and 23% had never been treated with any  ERT (n=28) 
(“Naïve”). 117 patients completed the PROPEL study and all 117 voluntarily enrolled in the long-term extension study.

The  primary  endpoint  of  the  study  was  the  mean  change  in  6-minute  walk  distance  as  compared  with  baseline 
measurements at 52 weeks across the combined ERT Switch and ERT Naïve patient populations. In this combined population 
patients taking AT-GAA (n=85) walked on average 21 meters farther at 52 weeks compared to 7 meters with those treated with 
alglucosidase  alfa  (n=37).  This  primary  endpoint  in  the  combined  population  was  assessed  for  superiority  and  while 
numerically greater, statistical significance for superiority on this combined population was not achieved for the AT-GAA arm 
as compared to the alglucosidase alfa arm (p=0.072).

Per  the  hierarchy  of  the  statistical  analysis  plan,  the  first  key  secondary  endpoint  of  the  study  was  the  mean  change  in 
percent-predicted  Forced  Vital  Capacity  (“FVC”)  at  52  weeks  across  the  combined  population.  In  this  combined  population 
patients taking AT-GAA demonstrated a nominally statistically significant and clinically meaningful difference for superiority 
over  those  treated  with  alglucosidase  alfa.  AT-GAA  significantly  slowed  the  rate  of  respiratory  decline  in  patients  after  52 

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weeks. Patients treated with AT-GAA showed a 0.9% absolute decline in percent-predicted FVC, compared to a 4.0% absolute 
decline in the alglucosidase alfa arm (p=0.023). 

Patients  within  the  combined  study  population  demonstrated  statistically  significant  improvements  on  the  GSGC  (“Gait, 
Stairs, Gower’s Chair”) key secondary endpoint, which captures strength, coordination and mobility, compared to a worsening 
for alglucosidase alfa treated patients in the overall population (p<0.05). Additionally, lower MMT (Manual Muscle Testing), 
Patient-Reported Outcomes Measurement Information System (“PROMIS”) physical function and PROMIS fatigue secondary 
endpoints favored AT-GAA treated patients over alglucosidase alfa treated patients. Results also showed improvements in the 
two  important  biomarker  endpoints  of  Pompe  disease  (Hex-4  and  CK),  which  significantly  favored  AT-GAA  compared  to 
alglucosidase alfa (p<0.001). AT-GAA demonstrated a similar safety profile to alglucosidase alfa. 

The PROPEL Switch patients entered the study having been treated with alglucosidase alfa for a minimum of two years. 
More  than  two  thirds  (67%+)  of  those  patients  had  been  on  ERT  treatment  for  more  than  five  years  prior  to  entering  the 
PROPEL study (mean of 7.4 years). A pre-specified analysis of the patients switching from alglucosidase alfa on 6-minute walk 
distance  showed  that  after  52  weeks  from  switching,  AT-GAA  treated  patients  (n=65)  walked  16.9  meters  farther  than  their 
baseline, compared to 0.0 meters for those patients who were randomized to remain on alglucosidase alfa (n=30) (p=0.046).

A pre-specified analysis of the patients switching from alglucosidase alfa on percent-predicted FVC showed that AT-GAA 
treated  patients  stabilized  and  slightly  improved  their  respiratory  function  on  this  important  measure  while  those  patients 
remaining on alglucosidase alfa continued to significantly decline in respiratory muscle function. AT-GAA patients showed a 
0.1% absolute increase in percent-predicted FVC while the alglucosidase alfa patients showed a 4.0% absolute decline over the 
course of the year (p=0.006).

The PROPEL Naïve patients treated with AT-GAA for 52 weeks (n=20) walked 33 meters farther than their baseline, on 
the 6-minute walk distance endpoint. The Naïve patients treated with alglucosidase alfa (n=7) walked 38 meters further than 
their  baseline.  The  difference  between  the  two  groups  was  not  statistically  significant  (p=0.60).  Additionally,  patients  never 
previously treated with any ERT showed similar declines in percent-predicted FVC at 52 weeks of –4.1% for AT-GAA treated 
patients  and  –3.6%  for  alglucosidase  alpha  treated  patients.  The  difference  between  the  two  groups  was  not  statistically 
significant (p=0.57). 

Gene Therapy for Pompe Disease

As part of our long-term commitment to provide multiple solutions to address the significant unmet needs of the Pompe 
community, we are also advancing a next-generation gene therapy treatment for Pompe disease. In October 2018, we expanded 
our  gene  therapy  portfolio  through  a  collaboration  agreement  with  Penn  to  pursue  research  and  development  of  novel  gene 
therapies for Pompe disease and other indications. 

In April 2019, we presented initial preclinical data from our investigational AAV gene therapy program for Pompe disease. 
This  initial  preclinical  study  in  Pompe  knockout  mice  administered  a  single  high  dose  of  AAV  gene  therapy  with  either 
unmodified  wild-type  hGAA  ("unmodified  hGAA")  or  an  Amicus/Penn  engineered  hGAA  transgene  with  a  Lysosomal-
Targeting  Cell  receptor  binding  motif  ("engineered  hGAA").  The  engineered  hGAA  AAV  gene  therapy  demonstrated  more 
robust and consistent glycogen reduction compared to unmodified hGAA AAV gene therapy, in all key tissues assessed in a 
Pompe  mouse  model.  In  the  central  nervous  system,  the  engineered  hGAA  AAV  gene  therapy  also  showed  robust  glycogen 
reduction in neuronal cells, suggesting this may be an effective way to address neuronal aspects of Pompe disease. Unmodified 
hGAA  AAV  gene  therapy  showed  minimal  glycogen  reduction  in  neuronal  cells.  This  preclinical  study  provided  initial 
validation for combining Amicus-engineered transgenes with Penn's AAV gene therapy technologies.

In  May  2020,  we  presented  preclinical  data  with  the  engineered  hGAA  AAV  in  single  and  combined  central  nervous 
system ("CNS") and systemic directed gene therapy in a mouse model of Pompe disease with advanced disease at treatment. 
The engineered hGAA AAV showed better targeting and clearance of glycogen storage at low doses in Pompe mice compared 
to unmodified hGAA AAV. High dose IV therapy showed strength rescue and the addition of high dose intracerabroventricular 
("ICV") therapy to high dose IV provided incremental benefit.

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Pompe Disease Background

Like Fabry disease, Pompe disease is an LD that results from a deficiency in an enzyme, GAA. Signs and symptoms of 
Pompe disease can be severe and debilitating and include progressive muscle weakness throughout the body, particularly the 
heart and skeletal muscles. GAA deficiency causes accumulation of glycogen in cells, which is believed to result in the clinical 
manifestations of Pompe disease. Pompe disease ranges from a rapidly fatal infantile form with severe cardiac involvement to a 
more  slowly  progressive,  late-onset  form  primarily  affecting  skeletal  muscle.  All  forms  are  characterized  by  severe  muscle 
weakness that worsens over time. In the early-onset form, patients are usually diagnosed shortly after birth and often experience 
enlargement  of  the  heart  and  severe  muscle  weakness.  In  late-onset  Pompe  disease,  symptoms  may  not  appear  until  late 
childhood or adulthood and patients often experience progressive muscle weakness.

According  to  reported  estimates  of  the  Acid  Maltase  Deficiency  Association,  the  United  Pompe  Foundation,  and  the 
Lysosomal  Disease  Program  at  Massachusetts  General  Hospital,  there  are  5,000-10,000  patients  with  Pompe  disease 
worldwide.

Currently, one product, an ERT, is approved for the treatment of Pompe disease: alglucosidase alfa by Sanofi Aventis.

Gene Therapy for Various Types of Batten Disease 

Through our license with Nationwide Children’s and expanded collaboration with Penn, we are researching potential first-
in-class gene therapies for multiple forms of Batten disease. Batten disease is the common name for a broad class of rare, fatal, 
inherited disorders of the nervous system also known as neuronal ceroid lipofuscinoses ("NCLs"). In these diseases, a defect in 
a  specific  gene  triggers  a  cascade  of  problems  that  interferes  with  a  cell's  ability  to  recycle  certain  molecules.  Each  gene  is 
called  ceroid  lipofuscinosis,  neuronal  ("CLN")  and  given  a  different  number  designation  as  its  subtype.  There  are  13  known 
forms  of  Batten  disease  often  referred  to  as  CLN1-8;  10-14.  The  various  types  of  Batten  disease  have  similar  features  and 
symptoms but vary in severity and age of onset.

Most forms of Batten disease/NCLs usually begin during childhood. The clinical course often involves progressive loss of 
independent adaptive skills such as mobility, feeding, and communication. Patients may also experience vision loss, personality 
changes,  behavioral  problems,  learning  impairment,  and  seizures.  Patients  typically  experience  progressive  loss  of  motor 
function and eventually those affected become wheelchair-bound, are then bedridden, and die prematurely.

We have two clinical programs in CLN6 and CLN3 Batten disease, and several preclinical programs including CLN1 and 
other  types  of  Batten  disease.  CLN6  Batten  disease  results  from  a  mutation  in  the  CLN6  gene  which  primarily  affects  the 
nervous system and results in a late-infantile form of Batten disease. CLN3 Batten disease, the most common form of Batten 
disease, results from a mutation in the CLN3 gene which primarily affects the nervous system and results in a juvenile form of 
Batten disease. CLN1 Batten disease results from a mutation in the CLN1 gene which primarily affects the nervous system and 
results in an infantile form of Batten disease. 

Our  Phase  1/2  study  in  CLN6  Batten  disease  enrolled  thirteen  patients  who  received  a  single  one-time  intrathecal 
administration of AAV-CLN6 gene therapy. In October 2020, we reported additional positive interim results from our CLN6 
Batten disease AAV-CLN6 gene therapy program, AT-GTX-501. Interim safety data are available for 13 patients with CLN6 
Batten disease. Interim safety data demonstrated the treatment with AT-GTX-501 was generally well tolerated. The majority of 
adverse  events  ("AEs")  were  mild  and  unrelated  to  treatment.  No  pattern  of  adverse  events  related  to  AAV  or  CLN6 
immunogenicity was observed. Interim efficacy data are available within the Hamburg Motor and Language scores and showed 
a meaningful effect in slowing disease progression for twelve patients reaching the 12-month timepoint and for eight patients up 
to 24 months, post-administration of the AAV-CLN6 gene therapy. Additionally, in October 2019, we reported interim clinical 
data that suggested stabilization of various components of Hamburg Seizure and Vision scores in most patients from baseline to 
month 12 or 24, in particular those patients treated at a younger age, compared to the progression expected in matched untreated 
patients. The CLN6 Batten population is approximately 1,000 patients across our commercial landscape today and there are no 
approved therapies for this disorder.

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In  the  fourth  quarter  of  2018,  we  announced  the  initiation  of  a  Phase  1/2  study  to  evaluate  the  safety  and  efficacy  of  a 
single intrathecal administration of an AAV serotype AT-GTX-502 gene therapy in patients with CLN3 Batten disease. In the 
Phase 1/2 study, a total of three patients were dosed in the low-dose group, and based on the safety profile to date, the data 
safety monitoring board cleared us to begin enrollment in the high-dose cohort. One patient is currently dosed in the high-dose 
cohort.  In  February  2021,  we  announced  initial  safety  for  the  first  four  patients  up  to  15  months  post-administration  of  AT-
GTX-502 and preliminary efficacy data for the first three patients in the low-dose cohort for up 15 months post-administration 
of AT-GTX-502, as well as one patient in the high-dose cohort for up to 3 months post-administration of AT-GTX-502. Initial 
results of the study suggest that AT-GTX-502 was well tolerated and demonstrated potential early signs of disease stabilization 
compared to a natural history dataset. CLN3 impacts approximately 5,000 patients across our commercial landscape today and 
there are no approved therapies for this disorder.

CDKL5 Deficiency Disorder 

We are researching a potential first-in-class genetic medicine for CDD consisting of a CDKL5 protein engineered for cross 
correction, delivered as either a protein replacement or as a gene therapy through our collaboration with Penn. CDKL5 is a gene 
on the X-chromosome encoding the CDKL5 protein that regulates the expression of several essential proteins for normal brain 
development.  Genetic  mutations  in  the  CDKL5  gene  result  in  CDKL5  protein  deficiency  and  CDD.  This  disorder  manifests 
clinically as persistent seizures starting in infancy, followed by severe impairment in neurological development. Most children 
affected by CDD cannot walk or care for themselves and may also suffer from scoliosis, visual impairment, sensory issues, and 
gastrointestinal complications. 

Other Preclinical Gene Therapies

We have a number of additional gene therapies in active preclinical development, including gene therapies for MPS IIIB as 
well as a next generation program in MPS IIIA. Our strategy is to develop first or best in class AAV gene therapies for these 
rare devastating pediatric neurological lysosomal storage diseases.

Strategic Alliances and Arrangements

We will continue to evaluate business development opportunities as appropriate that build stockholder value and provide us 
with  access  to  the  financial,  technical,  clinical,  and  commercial  resources  necessary  to  develop  and  market  technologies  or 
products  with  a  focus  on  rare  metabolic  diseases.  We  are  exploring  potential  collaborations,  alliances,  and  other  business 
development  opportunities  on  a  regular  basis.  These  opportunities  may  include  the  acquisition  of  preclinical-stage,  clinical-
stage, or marketed products so long as such transactions are consistent with our strategic plan to develop and provide therapies 
to patients living with rare and orphan diseases.

Acquisitions

Celenex, Inc.

In September 2018, we expanded our pipeline by acquiring the rights and related intellectual property of ten gene therapy 
programs through the acquisition of Celenex, Inc. ("Celenex"). Celenex is a private, clinical stage gene therapy company whose 
lead programs are ten gene therapy programs including CLN6 and CLN3, which are in clinical stage, and several programs in 
pre-clinical stage. Pursuant to the terms of the agreement, we agreed to pay up to an additional $10 million in connection with 
the  achievement  of  certain  development  milestones,  $220  million  in  connection  with  the  achievement  of  certain  regulatory 
approval  milestones  across  multiple  programs  and  up  to  $75  million  in  tiered  sales  milestone  payments.  Celenex  has  an 
exclusive  license  agreement  with  Nationwide  Children’s  Hospital  ("Nationwide  Children’s").  Under  this  license  agreement, 
Nationwide Children’s is eligible to receive development and sales-based milestones of up to $7.8 million for each product.

MiaMed, Inc.

In  July  2016,  we  acquired  MiaMed,  Inc.,  ("MiaMed"),  which  is  a  pre-clinical  biotechnology  company  focused  on 
developing protein replacement therapy for CDD and related diseases. As part of the transaction, we may be obligated to pay up 
to an additional $83.0 million in connection with the achievement of certain clinical, regulatory, and commercial milestones, for 
a potential aggregate deal value of $89.5 million. 

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Callidus Biopharma, Inc.

In  connection  with  our  acquisition  of  Callidus  Biopharma,  Inc.  ("Callidus"),  we  may  be  obligated  to  make  additional 
payments to the former stockholders of Callidus upon the achievement of certain clinical milestones of up to $35 million and 
regulatory milestones of up to $80 million set forth in the merger agreement, provided that the aggregate merger consideration 
shall not exceed $130 million. 

Intellectual Property

Patents and Trade Secrets

Our  success  depends  in  part  on  our  ability  to  maintain  proprietary  protection  surrounding  our  product  candidates, 
technology, and know-how, to operate without infringing the proprietary rights of others, and to prevent others from infringing 
our proprietary rights. Our policy is to seek to protect our proprietary position by filing U.S. and foreign patent applications 
related  to  our  proprietary  technology,  including  both  new  inventions  and  improvements  of  existing  technology,  that  are 
important to the development of our business, unless this proprietary position would be better protected using trade secrets. Our 
patent  strategy  includes  obtaining  patent  protection,  where  possible,  on  compositions  of  matter,  methods  of  manufacture, 
methods  of  use,  combination  therapies,  dosing  and  administration  regimens,  formulations,  therapeutic  monitoring,  screening 
methods,  and  assays.  We  also  rely  on  trade  secrets,  know-how,  continuing  technological  innovation,  in-licensing,  and 
partnership opportunities to develop and maintain our proprietary position. Lastly, we monitor third parties for activities that 
may infringe our proprietary rights, as well as the progression of third-party patent applications that may have the potential to 
create blocks to our products or otherwise interfere with the development of our business. We are aware, for example, of U.S. 
patents,  and  corresponding  international  counterparts,  owned  by  third  parties  that  contain  claims  related  to  ERTs,  and  small 
molecules  for  stabilizing  enzymes.  If  any  of  these  patents  were  to  be  asserted  against  us,  there  is  no  assurance  that  a  court 
would  find  in  our  favor  or  that,  if  we  choose  or  are  required  to  seek  a  license,  a  license  to  any  of  these  patents  would  be 
available to us on acceptable terms or at all.

We own or hold license rights to several issued patents and numerous pending and issued applications, filed in the U.S., 

Europe, Japan, and other jurisdictions that are related to Galafold® and our ongoing clinical programs:

•

•

We own issued U.S. patents that cover the use of migalastat, the active pharmaceutical ingredients in Galafold®, 
in the treatment of Fabry disease, which expire in 2027, 2028, 2029, 2037 or 2038 and are listed in the FDA 
Orange Book. Foreign counterparts of the U.S. patents are pending or issued in Europe, Japan, and certain other 
jurisdictions.  Further,  we  have  pending  U.S.  patent  applications  covering  various  aspects  of  Galafold®, 
including  methods  of  treating  a  patient  diagnosed  with  Fabry  disease  with  migalastat  and  their  foreign 
counterparts. Any patents issuing from these applications will expire in 2036, 2038, 2039, 2040, or 2041.and we 
anticipate listing these patents in the FDA Orange Book if issued.

We own several issued U.S. patents that cover various aspects of our investigational new treatment for Pompe 
disease,  AT-GAA  (ATB200/AT2221,  an  ERT/pharmacological  chaperone  combination)  as  well  as  foreign 
counterparts  to  the  issued  patents,  most  of  which  are  still  pending.  Issued  U.S.  patents  cover  ATB200 
compositions-of-matter,  formulations,  methods  of  manufacturing  and  methods  of  treatment  and  will  expire  in 
2033,  2035  or  2037.  We  also  have  pending  U.S.  patent  applications  covering  compositions,  methods  of 
treatment, methods of manufacture, and formulations with anticipated expiry in 2033, 2035, 2036, 2037, 2038, 
2040, or 2042.

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•

•

From  the  Celenex  acquisition,  we  acquired  an  exclusive  license  to  composition-of-matter  and  intrathecal 
method of treatment patent applications covering the gene therapy for treating Batten disease that are pending in 
the U.S., Europe, Japan, and other jurisdictions. Any patents issued from these applications will expire in 2033 
or 2040. The patent covering an intrathecal method of treatment, which expires in 2033, has issued in Europe 
and Japan.

From  our  agreement  with  Penn,  we  have  license  to  Penn’s  patent  portfolio  pertaining  to  vector  and  other 
platform  technologies  for  treating  Pompe  disease,  Fabry  disease,  CDD,  CLN1,  MPS  IIIB,  as  well  as  a  next 
generation program in MPS IIIA. Any patents issued from these applications will expire in 2039.

Patent  term  extensions  and  adjustments,  supplementary  protection  certificates,  and  pediatric  exclusivity  periods  are  not 
reflected in the expiration dates listed above and may extend protection. 

In addition to our clinical programs, we actively monitor and file patent applications in the U.S. and in foreign countries on 
relevant  technologies  and  pre-clinical  programs.  For  example,  we  own  or  hold  license  rights  to  U.S.  and  foreign  patents  or 
patent applications covering the following:

•

•

Gene therapy protein engineering technology;

Gene therapy (e.g., Pompe, Fabry, CDLK5, MPS IIIB and next generation MPS IIIA) and ERT (e.g., CDKL5) 
programs and the use to treat specified diseases.

We  cannot  be  certain,  however,  that  issued  patents  will  be  enforceable  or  provide  adequate  protection  or  that  pending 

patent applications will result in issued patents.

•

Individual patents extend for varying periods depending on the effective date of filing of the patent application 
or  the  date  of  patent  issuance,  and  the  legal  term  of  the  patents  in  the  countries  in  which  they  are  obtained. 
Generally, patents issued in the U.S. are effective for 20 years from the earliest nonprovisional filing date. This 
period may be shortened by terminal disclaimer or further extended by patent term adjustment or extension. The 
term of foreign patents varies in accordance with provisions of applicable local law, but typically is 20 years 
from the earliest nonprovisional filing date.

The  U.S.  Drug  Price  Competition  and  Patent  Term  Restoration  Act  of  1984,  and  amendments  thereto,  more  commonly 
known as the Hatch-Waxman Act, provides for an extension of one patent, known as a Hatch-Waxman statutory extension, for 
each  New  Chemical  Entity  ("NCE")  to  compensate  for  a  portion  of  the  time  spent  in  clinical  development  and  regulatory 
review. However, the maximum extension is five years and the extension cannot extend the patent beyond 14 years from the 
new  drug  application  ("NDA")  approval.  Similar  extensions  are  available  in  European  countries,  known  as  Supplemental 
Protection  Certificate  ("SPC")  extensions,  Japan,  and  other  countries.  However,  in  the  U.S.  we  will  not  know  what,  if  any, 
extensions  are  available  until  a  drug  is  approved.  In  addition,  in  the  U.S.,  under  provisions  of  the  Best  Pharmaceuticals  for 
Children Act, we may be entitled to an additional six-month period of patent protection or market exclusivity for completing 
pediatric clinical studies in response to an FDA issued Pediatric Written Request before said exclusivities expire.

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The  patent  positions  of  companies  like  ours  are  generally  uncertain  and  involve  complex  legal,  technical,  scientific,  and 
factual questions. Our ability to maintain and solidify our proprietary position for our technology will depend on our success in 
promptly  filing  patent  applications  on  new  discoveries,  and  in  obtaining  effective  claims  and  enforcing  those  claims  once 
granted.  We  focus  special  attention  on  filing  patent  applications  for  formulations  and  delivery  regimens  for  our  products  in 
development to further enhance our patent exclusivity for those products. We seek to protect our proprietary technology and 
processes,  in  part,  by  contracting  with  our  employees,  collaborators,  scientific  advisors,  and  our  commercial  consultants  to 
ensure  that  any  inventions  resulting  from  the  relationship  are  disclosed  promptly,  maintained  in  confidence  until  a  patent 
application is filed, and preferably until publication of the patent application, and assigned to us or subject to a right to obtain a 
license. We do not know whether any of our owned patent applications or those patent applications that are licensed to us will 
result in the issuance of any patents. Our issued patents and those that may issue in the future, or those licensed to us, may be 
challenged, narrowed, invalidated, circumvented, or be found to be invalid or unenforceable, which could limit our ability to 
stop competitors from marketing related products and reduce the term of patent protection that we may have for our products. 
Neither  we  nor  our  licensors  can  be  certain  that  we  were  the  first  to  invent  the  inventions  claimed  in  our  owned  or  licensed 
patents  or  patent  applications.  In  addition,  our  competitors  may  independently  develop  similar  technologies  or  duplicate  any 
technology  developed  by  us  and  the  rights  granted  under  any  issued  patents  may  not  provide  us  with  any  meaningful 
competitive  advantages  against  these  competitors.  Furthermore,  because  of  the  extensive  time  required  for  development, 
testing, and regulatory review of a potential product, it is possible that any related patent may expire prior to or shortly after 
commencing commercialization, thereby reducing the advantage of the patent to our business and products.

We  may  rely,  in  some  circumstances,  on  trade  secrets  to  protect  our  technology.  However,  trade  secrets  are  difficult  to 
protect. We seek to protect our trade secret technology and processes, in part, by entering into confidentiality agreements with 
commercial partners, collaborators, employees, consultants, scientific advisors, and other contractors, and by contracting with 
our  employees  and  some  of  our  commercial  consultants  to  ensure  that  any  trade  secrets  resulting  from  such  employment  or 
consulting  are  owned  by  us.  We  also  seek  to  preserve  the  integrity  and  confidentiality  of  our  data  and  trade  secrets  by 
maintaining  physical  security  of  our  premises  and  physical  and  electronic  security  of  our  information  technology  systems. 
While we have confidence in these individuals, organizations, and systems, agreements or security measures may be breached, 
and  we  may  not  have  adequate  remedies  for  any  breach.  In  addition,  our  trade  secrets  may  otherwise  become  known  or  be 
discovered  independently  by  others.  To  the  extent  that  our  consultants,  contractors,  or  collaborators  use  intellectual  property 
owned by others in their work for us, disputes may arise as to the rights in related or resulting know-how and inventions.

Collaboration and License Agreements

We have acquired rights to develop and commercialize our product candidates through licenses granted by various parties. 

The following summarizes our material rights and obligations under those licenses:

Nationwide Children's Hospital

In September 2018, we expanded our pipeline by acquiring the rights and related intellectual property of ten gene therapy 
programs through our acquisition of Celenex. Celenex has an exclusive license agreement with Nationwide Children’s. Under 
this  license  agreement,  Nationwide  Children’s  is  eligible  to  receive  development  and  sales-based  milestones  of  up  to  $7.8 
million for each product.

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University of Pennsylvania

In October 2018, as amended, we entered into a collaboration agreement with Penn to pursue research and development 
of novel gene therapies. Our gene therapy portfolio pipeline expanded to include Pompe disease, Fabry disease, CDD, CLN1, 
MPS IIIB, as well as a next generation program in MPS IIIA. This expanded collaboration with Penn also provides us with 
exclusive disease-specific access and option rights to develop potentially disruptive new gene therapy platform technologies 
and  programs  for  most  LDs  and  a  broader  portfolio  of  rare  diseases,  including  Rett  Syndrome,  Angelman  Syndrome, 
Myotonic Dystrophy, and select other muscular dystrophies. 

Under the expanded collaboration agreement with Penn, Penn is eligible to receive certain milestone, royalty and discovery 
research  payments  with  respect  to  licensed  products  for  each  indication.  Milestone  payments  are  payable  following  the 
achievement of certain development and commercial milestone events in each indication, up to an aggregate of $88.0 million 
per  indication.  Royalty  payments  are  based  on  net  sales  of  licensed  products  on  a  licensed  product-by-licensed  product  and 
country-  by-country  basis.  We  will  provide  $10.0  million  each  year  during  the  five-year  agreement  to  fund  the  discovery 
research program. In connection with the collaboration agreement, in 2018, we made an upfront payment of $7 million in cash 
to Penn that was expensed to research and development expense in the Consolidated Statements of Operations.

GlaxoSmithKline

In July 2012, as amended in November 2013, we entered into an agreement with GlaxoSmithKline ("GSK"), pursuant to 
which Amicus obtained global rights to develop and commercialize Galafold® as a monotherapy and in combination with ERT 
for  Fabry  disease  (“Collaboration  Agreement”).  Under  the  terms  of  the  Collaboration  Agreement,  GSK  is  eligible  to  receive 
post-approval and sales-based milestones up to $40 million, as well as tiered royalties in the mid-teens in eight major markets 
outside the U.S. 

Manufacturing

We continue to rely on contract manufacturers to supply the active biopharmaceutical ingredients and final drug product 
for Galafold®, other pharmacological chaperones, our next-generation ERT product candidates, and our gene therapy product 
candidates. The active biopharmaceutical ingredients and final formulations for these products are manufactured under current 
Good Manufacturing Practice ("cGMP"). The components in the final formulation for each product are commonly used in other 
biopharmaceutical  products  and  are  well  characterized  ingredients.  Although  we  rely  on  contract  manufacturers,  we  have 
personnel with extensive manufacturing and quality experience to oversee our contract manufacturers. We have implemented 
appropriate  controls  for  assuring  the  quality  of  both  active  biopharmaceutical  ingredients  and  final  drug  products.  Product 
specifications will be established in concurrence with regulatory bodies at the time of product registration.

While  our  third-party  manufacturers  have  met  our  current  manufacturing  requirements,  we  anticipate  taking  steps  to 
increase our manufacturing capabilities for our gene therapy platform. Our current arrangement with third-party manufacturers 
provide sufficient quantities of our program materials to meet anticipated clinical trial demands.

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Competition

Overview

The biotechnology and pharmaceutical industries are characterized by rapidly advancing technologies, intense competition, 
and a strong emphasis on proprietary products. In addition, several large pharmaceutical companies are increasingly focused on 
developing therapies for the treatment of rare diseases through organic growth, acquisitions, and partnerships. While we believe 
that  our  technologies,  knowledge,  experience,  and  scientific  resources,  provide  us  with  competitive  advantages,  we  face 
potential  competition  from  many  different  sources,  including  commercial  enterprises,  academic  institutions,  government 
agencies, and private and public research institutions. Any product candidates that we successfully develop and commercialize 
will compete with both existing and new therapies that may become available in the future.

Many  of  our  competitors  may  have  significantly  greater  financial  resources  and  expertise  associated  with  research  and 
development, regulatory approvals, and marketing approved products. These competitors also compete with us in recruiting and 
retaining qualified scientific and management personnel, as well as in acquiring technologies complementary to, or necessary 
for,  our  programs.  Smaller  or  early-stage  companies  may  also  prove  to  be  significant  competitors,  particularly  through 
collaborative arrangements with large and established companies.

Our commercial opportunities could be reduced or eliminated if our competitors develop and commercialize products that 
are  safer,  more  effective,  have  fewer  side  effects,  are  more  convenient,  and/or  are  less  expensive  than  products  that  we  may 
develop. In addition, our ability to compete may be affected because in some cases insurers or other third-party payors seek to 
encourage the use of generic products. This may have the effect of making branded products less attractive to buyers.

Major Competitors

Our  major  competitors  include  pharmaceutical  and  biotechnology  companies  in  the  U.S.  and  abroad  that  have  approved 
therapies or therapies in development for LDs. Other competitors are pharmaceutical and biotechnology companies that have 
approved  therapies  or  therapies  in  development  for  rare  diseases  for  which  pharmacological  chaperone  technology,  or  next-
generation ERT may be applicable. Additionally, we are aware of several early-stage, niche pharmaceutical, and biotechnology 
companies whose core business revolves around protein misfolding; however, we are not aware that any of these companies are 
currently working to develop products that would directly compete with ours. We are also aware of several pharmaceutical and 
biotechnology companies who are developing various treatments for novel ERTs and gene therapy. The key competitive factors 
affecting the success of our product candidates are likely to be their efficacy, safety, convenience, and price.

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Any  product  candidates  that  we  successfully  develop  and  commercialize  will  compete  with  existing  therapies  and  new 
therapies  that  may  become  available  in  the  future.  The  following  table  lists  our  principal  competitors  and  publicly  available 
information on the status of their clinical-stage product offerings:

Competitor (1)

Indication

Product

Class of Product

Status

Sanofi Aventis

Fabry Disease

Fabrazyme®

Pompe Disease

Myozyme®/ Lumizyme®

ERT

ERT

Fabry Disease

GZ402671

Oral GCS Inhibitor

Pompe Disease

GZ402666 ("neo GAA")

Takeda

Idorsia

Fabry Disease

Fabry Disease

Protalix Biotherapeutics

Fabry Disease

Avrobio

Freeline

Sangamo

AskBio (Bayer)

Audentes (Astellas)

Fabry Disease

Fabry Disease

Fabry Disease

Pompe Disease

Pompe Disease

Replagal®

Lucerastat

PRX-102

AVR-RD-01

FLT190

ST-920

ACTUS-101

AT845

ERT

ERT

Oral Therapy

ERT

Gene Therapy

Gene Therapy

Gene Therapy

Gene Therapy

Gene Therapy

Marketed

Marketed

Phase 2

Regulatory Review

Marketed

Phase 3

Phase 2/3

Phase 1/2

Phase 1/2

Phase 1/2

Phase 1/2

Phase 1/2

Roche (Spark)
______________________________
(1) Reflects commercial products and product candidates for which IND has been filed or are in clinical development.

Pompe Disease

Gene Therapy

Phase 1/2

SPK3006

2020 Sales

(in millions)

€817 

€948 

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Government Regulation

FDA Approval Process

In  the  U.S.,  biopharmaceutical  products,  including  gene  therapies,  are  subject  to  extensive  regulation  by  the  FDA.  The 
Federal Food, Drug, and Cosmetic Act, Public Health Services Act, and other federal and state statutes and regulations, govern, 
among other things, the research, development, testing, manufacture, storage, recordkeeping, approval, labeling, promotion and 
marketing,  distribution,  post-approval  monitoring  and  reporting,  sampling,  and  import  and  export  of  biopharmaceutical 
products. Failure to comply with applicable U.S. requirements may subject a company to a variety of administrative or judicial 
sanctions, such as FDA refusal to file a marketing application, to issue Complete Response letters or to not approve pending 
NDAs or biologic product license applications ("BLAs"), or to issue warning letters, product recalls, product seizures, total or 
partial  suspension  of  production  or  distribution,  injunctions,  fines,  civil  penalties,  litigation,  government  investigation,  and 
criminal prosecution.

Biopharmaceutical  product  development  in  the  U.S.  typically  involves  nonclinical  laboratory  and  animal  tests,  the 
submission  to  the  FDA  of  an  Investigational  New  Drug  application  ("IND"),  which  must  become  effective  before  clinical 
testing may commence, and adequate and well-controlled clinical trials to establish the safety and effectiveness of the drug for 
each indication for which FDA approval is sought. Satisfaction of FDA pre-market approval requirements typically takes many 
years and the actual time required varies substantially based upon the type, complexity, and novelty of the product or disease. 
Preclinical  tests  include  laboratory  evaluation  of  product  chemistry,  formulation,  and  toxicity,  as  well  as  animal  studies  to 
assess the characteristics, potential safety, and efficacy of the product. The conduct of the preclinical tests must comply with 
federal  regulations  and  requirements  including  Good  Laboratory  Practice  ("GLP").  The  results  of  preclinical  testing  are 
submitted  to  the  FDA  as  part  of  an  IND  along  with  other  information  including  information  about  product  chemistry, 
manufacturing and controls, and at least one proposed clinical trial protocol. Long-term preclinical safety evaluations, such as 
animal tests of reproductive toxicity and carcinogenicity, continue during the IND phase of development. Reproductive toxicity 
studies are required to allow inclusion of women of childbearing potential in clinical trials, whereas carcinogenicity studies are 
required for registration. The results of these long-term studies would eventually be described in product labeling.

A  30-day  review  period  after  the  submission  and  receipt  of  an  IND  is  required  prior  to  the  commencement  of  clinical 
testing in humans. The IND becomes effective 30 days after its receipt by the FDA, and trials may begin at that point unless the 
FDA notifies the sponsor that the investigations are subject to a clinical hold.

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Clinical trials usually involve the administration of the investigational new drug to healthy volunteers or patients under the 
supervision of a qualified investigator. Clinical trials must be conducted in compliance with applicable government regulations, 
Good  Clinical  Practice  ("GCP"),  as  well  as  under  protocols  detailing  the  objectives  of  the  trial,  the  parameters  to  be  used  in 
monitoring  safety,  and  the  effectiveness  criteria  to  be  evaluated.  Each  protocol  involving  testing  on  U.S.  patients  and 
subsequent protocol amendments must be submitted to the FDA as part of the IND.

The FDA may order the temporary or permanent discontinuation of a clinical trial at any time or impose other sanctions if 
it believes that the clinical trial is not being conducted in accordance with FDA requirements or presents an unacceptable risk to 
the  clinical  trial  patients.  The  study  protocol  and  informed  consent  information  for  patients  in  clinical  trials  must  also  be 
submitted to an Institutional Review Board ("IRB"), for approval. An IRB may also require the clinical trial at the site to be 
halted, either temporarily or permanently, for failure to comply with the IRB's requirements, or may impose other conditions.

Clinical trials to support an NDA or BLA for marketing approval are typically conducted in three sequential phases, but the 
phases may overlap. In Phase 1, the initial introduction of the drug into healthy human subjects or patients, the drug is tested to 
assess metabolism, pharmacokinetics, pharmacological actions, side effects associated with increasing doses, and, if possible, 
early evidence on pharmacodynamics effects and effectiveness.

Phase  2  usually  involves  trials  in  a  limited  patient  population  to  determine  the  effectiveness  of  the  drug  for  a  particular 
indication  or  indications,  dosage  tolerance,  and  optimum  dosage,  and  identify  common  adverse  effects  and  safety  risks.  If  a 
compound  demonstrates  evidence  of  efficacy  and  an  acceptable  safety  profile  in  Phase  2  evaluations,  Phase  3  trials  are 
undertaken  to  obtain  the  additional  information  about  clinical  efficacy  and  safety  in  a  larger  number  of  patients  over  longer 
treatment periods, typically at geographically dispersed clinical trial sites, to permit the FDA to evaluate the overall benefit-risk 
relationship of the drug and to provide adequate information for the labeling of the drug.

The  FDA  has  established  the  Office  of  Tissue  and  Advanced  Therapies  within  the  Center  for  Biologics  Evaluation  and 
Research, or CBER, to consolidate the review of gene therapy and related products, and has established the Cellular, Tissue and 
Gene Therapies Advisory Committee to advise CBER in its review.

In  addition  to  the  regulations  discussed  above,  there  are  a  number  of  additional  standards  that  apply  to  clinical  trials 
involving gene therapies. The FDA has issued various guidance documents regarding gene therapies, which outline additional 
factors  that  the  FDA  will  consider  at  each  of  the  above  stages  of  development  and  relate  to,  among  other  things:  the  proper 
preclinical assessment of gene therapies; the CMC information that should be included in an IND application; the proper design 
of tests to measure product potency in support of an IND or BLA application; and measures to observe delayed adverse effects 
in  subjects  who  have  been  exposed  to  investigational  gene  therapies  when  the  risk  of  such  effects  is  high.  Further,  the  FDA 
usually  recommends  that  sponsors  observe  subjects  for  potential  gene  therapy-related  delayed  adverse  events  for  a  15-year 
period, including a minimum of five years of annual examinations followed by 10 years of annual queries, either in person or 
by  questionnaire.  NIH  and  the  FDA  have  a  publicly  accessible  database,  the  Genetic  Modification  Clinical  Research 
Information System, which includes information on gene therapy trials and serves as an electronic tool to facilitate the reporting 
and analysis of adverse events on these trials. 

After  completion  of  the  required  clinical  testing,  an  NDA  or  BLA  is  prepared  and  submitted  to  the  FDA  for  the 
determination of efficacy and safety. FDA approval of the NDA or BLA is required before marketing of the product may begin 
in the U.S. The NDA or BLA must include the results of all preclinical, clinical, and other testing and a compilation of data 
relating to the product's pharmacology, chemistry, manufacture, and controls. The cost of preparing and submitting an NDA or 
BLA  is  substantial.  Under  federal  law,  the  submission  of  most  NDAs  and  BLAs  is  additionally  subject  to  a  substantial 
application user fee; although for orphan drugs these fees are waived, and the holder of an approved NDA or BLA may also be 
subject to annual product and establishment user fees. These fees are typically increased annually.

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The FDA has 60 days from its receipt of an NDA or BLA to determine whether the application will be accepted for filing 
based on the agency's threshold determination that it is sufficiently complete to permit substantive review. Once the submission 
is accepted for filing, the FDA begins an in-depth review. The FDA has agreed to certain performance goals in the review of 
NDAs.  Marketing  applications  are  assigned  review  status  during  the  filing  period.  Review  status  could  be  either  standard  or 
priority. Most such applications for standard review are reviewed within 12 months under PDUFA V (two months for filing 
plus ten months for review). The FDA attempts to review a drug candidate that is eligible for priority review within six months, 
as  discussed  below.  The  review  process  may  be  extended  by  the  FDA  for  three  additional  months  to  evaluate  major 
amendments submitted during the pre-specified PDUFA V review clock. The FDA may also refer applications for novel drug 
products or drug products which present difficult questions of safety or efficacy to an Advisory Committee for public review, 
typically  a  panel  that  includes  clinicians  and  other  experts,  for  review,  evaluation,  and  a  recommendation  as  to  whether  the 
application  should  be  approved.  The  FDA  is  not  bound  by  the  recommendation  of  an  Advisory  Committee,  but  it  generally 
follows such recommendations. Before approving an NDA or BLA, the FDA will typically inspect one or more clinical sites to 
assure compliance with GCP. Additionally, the FDA will inspect the facility or the facilities at which the drug is manufactured. 
The  FDA  may  also  undertake  an  audit  of  nonclinical  and  clinical  trial  sites.  The  FDA  will  not  approve  the  product  unless 
compliance with cGMP is satisfactory and the NDA or BLA contains data that provide substantial evidence that the drug is safe 
and effective in the indication studied and to be marketed. During the product approval process, the FDA also will determine 
whether  a  risk  evaluation  and  mitigation  strategy,  or  REMS,  is  necessary  to  assure  the  safe  use  of  the  product  candidate.  A 
REMS  could  include  medication  guides,  physician  communication  plans  and  elements  to  assure  safe  use,  such  as  restricted 
distribution methods, patient registries, and other risk minimization tools. If the FDA concludes a REMS is needed, the sponsor 
of the BLA must submit a proposed REMS; the FDA will not approve the BLA without a REMS, if required.

After  the  FDA  evaluates  the  NDA  or  BLA  and  the  manufacturing  facilities,  it  issues  an  approval  letter  or  a  complete 
response  letter.  Complete  response  letters  outline  the  deficiencies  in  the  submission  that  prevent  approval  and  may  require 
substantial additional testing or information for the FDA to reconsider the application. If and when those deficiencies have been 
addressed to the FDA's satisfaction in an amendment submitted to the NDA or BLA, the FDA will then issue an approval letter. 
The FDA has committed to reviewing such resubmissions in two or six months depending on the type and extent of information 
included.

An  approval  letter  authorizes  commercial  marketing  of  the  drug  with  specific  prescribing  information  for  specific 
indications. As a condition of NDA approval, the FDA may require substantial post-approval commitments or requirements to 
conduct  additional  testing  and/or  surveillance  to  monitor  the  drug's  safety  or  efficacy  and  may  impose  other  conditions, 
including  distribution  and  labeling  restrictions  which  can  materially  affect  the  potential  market  and  profitability  of  the  drug. 
Once  granted,  product  approvals  may  be  withdrawn  if  compliance  with  regulatory  standards  is  not  maintained,  problems  are 
identified following initial marketing, or post-marketing commitments are not met.

The Hatch-Waxman Act

In seeking approval for a drug through an NDA, applicants are required to list with the FDA certain patent(s) with claims 
that  cover  the  applicant's  product  or  approved  method  of  use.  Upon  approval  of  a  drug,  each  of  the  patents  listed  in  the 
application  for  the  drug  is  then  published  in  the  FDA's  Approved  Drug  Products  with  Therapeutic  Equivalence  Evaluations, 
commonly  known  as  the  Orange  Book.  Drugs  listed  in  the  Orange  Book  can,  in  turn,  be  cited  by  potential  competitors  in 
support of approval of an Abbreviated New Drug Application ("ANDA"). An ANDA provides for marketing of a drug product 
that has the same route of administration, active ingredients strength, and dosage form as the listed drug and has been shown 
through  bioequivalence  testing  to  be,  in  most  cases,  therapeutically  equivalent  to  the  listed  drug.  ANDA  applicants  are  not 
required to conduct or submit results of preclinical or clinical tests to prove the safety or effectiveness of their drug product, 
other  than  the  requirement  for  bioequivalence  testing.  Drugs  approved  in  this  way  are  commonly  referred  to  as  "generic 
equivalents"  to  the  listed  drug  and  can  often  be  substituted  by  pharmacists  under  prescriptions  written  for  the  original  listed 
"innovator" drug.

The ANDA applicant is required to certify to the FDA concerning any patents listed for the approved product in the FDA's 
Orange Book. Specifically, the applicant must certify that: (i) the required patent information has not been filed; (ii) the listed 
patent has expired; (iii) the listed patent has not expired but will expire on a particular date and approval is sought after patent 
expiration; or (iv) the listed patent is invalid or will not be infringed by the new product. A certification that the new product 
will  not  infringe  the  already  approved  product's  listed  patents  or  that  such  patents  are  invalid  is  called  a  Paragraph  4 
certification. If the applicant does not challenge the listed patents, the ANDA application will not be approved until all the listed 
patents claiming the referenced product have expired.

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If  the  ANDA  applicant  submits  a  Paragraph  4  certification  to  the  FDA,  the  applicant  must  also  send  notice  of  the 
Paragraph 4 certification to the NDA and patent holders once the ANDA has been accepted for filing by the FDA. The NDA 
and patent holders may then initiate a patent infringement lawsuit in response to the notice of the Paragraph 4 certification. The 
filing of a patent infringement lawsuit within 45 days of the receipt of a Paragraph 4 certification automatically prevents the 
FDA from approving the ANDA until the earlier of 30 months, expiration of the patent, settlement of the lawsuit or a decision 
in the infringement case that is favorable to the ANDA applicant.

Patent  term  and  data  exclusivity  run  in  parallel.  An  ANDA  application  also  will  not  be  approved  until  any  non-patent 
exclusivity,  such  as  exclusivity  for  obtaining  approval  of  an  NCE,  listed  in  the  Orange  Book  for  the  referenced  product  has 
expired ("New Chemical Entity Market Exclusivity"). Federal law provides a period of five years following approval of a drug 
containing  no  previously  approved  active  ingredients,  during  which  ANDAs  for  generic  versions  of  those  drugs  cannot  be 
submitted  unless  the  submission  contains  a  Paragraph  4  certification  that  challenges  a  listed  patent,  in  which  case  the 
submission may be made four years following the original product approval.

Federal law provides for a period of three years of exclusivity following approval of a listed drug that contains previously 
approved active ingredients but is approved in a new dosage form, route of administration or combination, or for a new use, the 
approval of which was required to be supported by new clinical trials conducted by or for the sponsor, during which the FDA 
cannot grant effective approval of an ANDA based on that listed drug for the same new dosage form, route of administration or 
combination, or new use.

Other Regulatory Requirements

Once an NDA or BLA is approved, a product will be subject to certain post-approval requirements. For instance, the FDA 
closely  regulates  the  post-approval  marketing  and  promotion  of  drugs,  including  standards  and  regulations  for  direct-to-
consumer advertising, communications regarding unindicated uses, industry-sponsored scientific and educational activities, and 
promotional activities involving the internet. Products approved under Subpart H or Subpart E carry additional post-marketing 
considerations and requirements.

Drugs  may  be  promoted  only  for  approved  indications  and  in  accordance  with  the  provisions  of  the  approved  labeling. 
Changes  to  some  of  the  conditions  established  in  an  approved  application,  including  changes  in  indications,  new  safety 
information,  labeling,  or  manufacturing  processes  or  facilities,  require  submission  and  FDA  approval  of  a  new  NDA,  NDA 
supplement,  BLA,  or  BLA  supplement  before  the  change  can  be  implemented.  New  efficacy  claims  require  submission  and 
approval of an NDA supplement and BLA supplement for each new indication.

The efficacy claims typically require new clinical data similar to those included in the original application. The FDA uses 
the same procedures and actions in reviewing NDA and BLA supplements as it does in reviewing NDAs and BLAs. Additional 
exclusivity may be granted for new efficacy claims. Generic ANDAs cannot be labeled for these types of claims until the new 
exclusivity period expires.

Adverse event reporting and submission of periodic reports is required following FDA approval of an NDA or BLA. The 
FDA  also  may  require  post-marketing  testing,  known  as  Phase  4  testing,  risk  evaluation  and  mitigation  strategies,  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.  In  addition,  quality  control  as  well  as  drug  manufacture,  packaging,  and  labeling  procedures  must 
continue  to  conform  to  cGMP,  after  approval.  Drug  manufacturers  and  certain  subcontractors  are  required  to  register  their 
establishments with FDA and certain state agencies and are subject to routine inspections by the FDA during which the agency 
inspects manufacturing facilities to access compliance with cGMP. Accordingly, manufacturers must continue to expend time, 
money, and effort in the areas of production and quality control to maintain compliance with cGMP. Regulatory authorities may 
withdraw product approvals or request product recalls if a company fails to comply with regulatory standards, if it encounters 
problems following initial marketing, or if previously unrecognized problems are subsequently discovered.

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Orphan Drugs

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

Pediatric Information

Under the Pediatric Research Equity Act of 2007 ("PREA"), NDAs or supplements to NDAs must contain data to assess 
the safety and effectiveness of the drug for the claimed indications in all relevant pediatric subpopulations and to support dosing 
and administration for each pediatric subpopulation for which the drug is safe and effective. The FDA may grant deferrals for 
submission of data or full or partial waivers. Unless otherwise required by regulation, PREA does not apply to any drug for an 
indication for which orphan designation has been granted.

Fast Track Designation

Under the Fast Track program, the sponsor of an IND may request the FDA to designate the drug candidate as a Fast Track 
drug  if  it  is  intended  to  treat  a  serious  condition  and  fulfill  an  unmet  medical  need.  The  FDA  must  determine  if  the  drug 
candidate qualifies for Fast Track designation within 60 days of receipt of the sponsor's request. Once the FDA designates a 
drug as a Fast Track candidate, it is required to facilitate the development and expedite the review of that drug by providing 
more frequent communication with and guidance to the sponsor.

In addition to other benefits such as greater interactions with the FDA, the FDA may initiate review of sections of a Fast 
Track drug's NDA or BLA before the application is complete. This rolling review is available if the applicant provides, and the 
FDA  approves,  a  schedule  for  the  submission  of  the  remaining  information  and  the  applicant  pays  applicable  user  fees. 
However, the FDA's review period as specified under PDUFA V for filing and reviewing an application does not begin until the 
last section of the NDA or BLA has been submitted. Additionally, the Fast Track designation may be withdrawn by the FDA if 
the FDA believes that the designation is no longer supported by data emerging in the clinical trial process.

Breakthrough Therapy Designation

Breakthrough Therapy designation is intended to expedite the development and review of a candidate that is planned for 
use  to  treat  a  serious  or  life-threatening  disease  or  condition  when  preliminary  clinical  evidence  indicates  that  the  drug  may 
demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints. A Breakthrough 
Therapy designation conveys all of the Fast Track program features, as well as more intensive FDA guidance on an efficient 
drug development program. The FDA also has an organizational commitment to involve senior management in such guidance.

Priority Review

Under  FDA  policies,  a  drug  candidate  is  eligible  for  priority  review,  or  review  within  six  months  from  filing  for  a  new 
molecular  entity  ("NME")  or  six  months  from  submission  for  a  non-NME  if  the  drug  candidate  provides  a  significant 
improvement compared to marketed drugs in the treatment, diagnosis, or prevention of a disease. A Fast Track designated drug 
candidate would ordinarily meet the FDA's criteria for priority review. The FDA makes its determination of priority or standard 
review during the 60-day filing period after an initial NDA or BLA submission.

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Accelerated Approval

Under the FDA's accelerated approval regulations, the FDA may approve a drug for a serious or life-threatening illness that 
provides meaningful therapeutic benefit to patients over existing treatments based upon a surrogate endpoint that is reasonably 
likely to predict clinical benefit. This approval mechanism is provided for under 21CRF314 Subpart H and Subpart E. In this 
case,  clinical  trials  are  conducted  in  which  a  surrogate  endpoint  is  used  as  the  primary  outcome  for  approval.  A  surrogate 
endpoint is reasonably likely to predict clinical benefit, or an effect on a clinical endpoint that can be measured earlier than an 
effect on 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. This surrogate endpoint substitutes for a direct measurement of how a patient feels, functions, or survives 
and is considered reasonably likely to predict clinical benefit. Such surrogate endpoints may be measured more easily or more 
rapidly  than  clinical  endpoints.  A  drug  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. 
When  the  Phase  4  commitment  is  successfully  completed,  the  biomarker  is  deemed  to  be  a  surrogate  endpoint.  Failure  to 
conduct  required  post-approval  studies  or  confirm  a  clinical  benefit  during  post-marketing  studies,  could  lead  the  FDA  to 
withdraw  the  drug  from  the  market  on  an  expedited  basis.  All  promotional  materials  for  drug  candidates  approved  under 
accelerated regulations are subject to prior review by the FDA.

Section 505(b) (2) New Drug Applications

Most drug products obtain FDA marketing approval pursuant to an NDA, an ANDA, or a BLA. A fourth alternative is a 
special type of NDA, commonly referred to as a Section 505(b) (2) NDA, which enables the applicant to rely, in part, on the 
safety and efficacy data of an existing product, or published literature, in support of its application.

505(b)  (2)  NDAs  often  provide  an  alternate  path  to  FDA  approval  for  new  or  improved  formulations  or  new  uses  of 
previously approved products. Section 505(b)(2) permits the submission of an NDA for which at least some of the information 
required for approval comes from studies not conducted by or for the applicant and for which the applicant has not obtained a 
right of reference. The applicant may rely upon certain preclinical or clinical studies conducted for an approved product. The 
FDA  may  also  require  companies  to  perform  additional  studies  or  measurements  to  support  the  change  from  the  approved 
product. The FDA may then approve the new product candidate for all or some of the label indications for which the referenced 
product has been approved, as well as for any new indication sought by the Section 505(b) (2) applicant.

To  the  extent  that  the  Section  505(b)  (2)  applicant  is  relying  on  studies  conducted  for  an  already-approved  product,  the 
applicant is required to certify to the FDA concerning any patents listed for the approved product in the Orange Book to the 
same extent as an ANDA applicant. Thus approval of a 505(b)(2) NDA can be stalled until all the listed patents claiming the 
referenced product have expired, until any non-patent exclusivity, such as exclusivity for obtaining approval of an NCE, listed 
in the Orange Book for the referenced product has expired, and, in the case of a Paragraph 4 certification and subsequent patent 
infringement suit, until the earlier of 30 months, settlement of the lawsuit or a decision in the infringement case that is favorable 
to the Section 505(b)(2) applicant.

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Biologics Price Competition and Innovation Act 

The  Biologics  Price  Competition  and  Innovation  Act  of  2009  ("BPCIA"),  which  was  enacted  as  part  of  the  Patient 
Protection  and  Affordable  Care  Act  of  2010,  as  amended  by  the  Health  Care  and  Education  Reconciliation  Act  of  2010 
("PPACA")  created  an  abbreviated  approval  pathway  for  biological  products  that  are  demonstrated  to  be  "biosimilar"  or 
"interchangeable"  with  an  FDA-licensed  reference  biological  product  via  an  approved  BLA.  Biosimilarity  to  an  approved 
reference product requires that there be no differences in conditions of use, route of administration, dosage form, and strength, 
and no clinically meaningful differences between the biological product and the reference product in terms of safety, purity, and 
potency. Biosimilarity is demonstrated in steps beginning with rigorous analytical studies or "fingerprinting", in vitro studies, in 
vivo animal studies, and generally at least one clinical study, absent a waiver from the Secretary of Health and Human Services. 
The biosimilarity exercise tests the hypothesis that the investigational product and the reference product are the same. If at any 
point  in  the  stepwise  biosimilarity  process  a  significant  difference  is  observed,  then  the  products  are  not  biosimilar,  and  the 
development of a stand-alone NDA or BLA is necessary. In order to meet the higher hurdle of interchangeability, a sponsor 
must demonstrate that the biosimilar product can be expected to produce the same clinical result as the reference product, and 
for  a  product  that  is  administered  more  than  once,  that  the  risk  of  switching  between  the  reference  product  and  biosimilar 
product is not greater than the risk of maintaining the patient on the reference product. Complexities associated with the larger, 
and  often  more  complex,  structures  of  biological  products,  as  well  as  the  process  by  which  such  products  are  manufactured, 
pose significant hurdles to implementation that are still being evaluated by the FDA. Under the BPCIA, a reference biologic is 
granted 12 years of exclusivity from the time of first licensure of the reference product.

Anti-Kickback, False Claims Laws, the Prescription Drug Marketing Act and Other Regulations

In addition to FDA restrictions on marketing of pharmaceutical products, several other types of state and federal laws have 
been  applied  to  restrict  certain  marketing  practices  in  the  pharmaceutical  industry  in  recent  years.  These  laws  include  anti-
kickback  statutes  and  false  claims  statutes  as  well  as  regulations  related  to  payments  and  transfers  of  value  to  healthcare 
providers, the protection of the security and privacy of protected health information, and other compliance efforts. The federal 
healthcare program anti-kickback statute prohibits, among other things, knowingly and willfully offering, paying, soliciting, or 
receiving remuneration to induce or in return for purchasing, leasing, ordering, or arranging for the purchase, lease or order of 
any healthcare item or service reimbursable under Medicare, Medicaid, or other federally financed healthcare programs. This 
statute has been interpreted to apply to arrangements between pharmaceutical manufacturers on the one hand and prescribers, 
purchasers,  and  formulary  managers  on  the  other.  Violations  of  the  anti-kickback  statute  are  punishable  by  imprisonment, 
criminal fines, civil monetary penalties, and exclusion from participation in federal healthcare programs. Although there are a 
number  of  statutory  exemptions  and  regulatory  safe  harbors  protecting  certain  common  activities  from  prosecution  or  other 
regulatory sanctions, the exemptions and safe harbors are drawn narrowly, and practices that involve remuneration intended to 
induce prescribing, purchases, or recommendations may be subject to scrutiny if they do not qualify for an exemption or safe 
harbor.

Federal  false  claims  laws  prohibit  any  person  from  knowingly  presenting,  or  causing  to  be  presented,  a  false  claim  for 
payment to the federal government, or knowingly making, or causing to be made, a false statement to have a false claim paid. 
Recently, several pharmaceutical and other healthcare companies have been prosecuted under these laws for allegedly inflating 
drug  prices  they  report  to  pricing  services,  which  in  turn  were  used  by  the  government  to  set  Medicare  and  Medicaid 
reimbursement rates, and for allegedly providing free product to customers with the expectation that the customers would bill 
federal programs for the product. In addition, certain marketing practices, including off-label promotion, may also violate false 
claims laws. The majority of states also have statutes or regulations similar to the federal anti-kickback law and false claims 
laws,  which  apply  to  items  and  services,  reimbursed  under  Medicaid  and  other  state  programs,  or,  in  several  states,  apply 
regardless of the payor.

Physician Drug Samples

As  part  of  the  sales  and  marketing  process,  pharmaceutical  companies  frequently  provide  samples  of  approved  drugs  to 
physicians. The Prescription Drug Marketing Act (the "PDMA") imposes requirements and limitations upon the provision of 
drug samples to physicians, as well as prohibits states from licensing distributors of prescription drugs unless the state licensing 
program meets certain federal guidelines that include minimum standards for storage, handling, and record keeping. In addition, 
the PDMA sets forth civil and criminal penalties for violations.

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Regulation Outside the U.S.

In  addition  to  regulations  in  the  U.S.,  we  are  subject  to  a  variety  of  regulations  in  other  jurisdictions  governing  clinical 
studies,  commercial  sales,  and  distribution  of  our  products.  Most  countries  outside  the  U.S.  require  that  clinical  trial 
applications be submitted to and approved by the local regulatory authority for each clinical study. In addition, whether or not 
we  obtain  FDA  approval  for  a  product,  we  must  obtain  approval  of  a  product  by  the  comparable  regulatory  authorities  of 
countries outside the U.S. before we can commence clinical studies or marketing of the product in those countries. The approval 
process varies from country to country, and the time may be longer or shorter than that required for FDA approval.

To obtain regulatory approval of an orphan drug under the E.U. regulatory system, we are mandated to submit a marketing 
authorization  application  ("MAA")  to  be  assessed  in  the  Centralized  Procedure.  The  centralized  procedure,  which  came  into 
operation in 1995, allows applicants to obtain a marketing authorization that is valid throughout the E.U. It is compulsory for 
medicinal  products  manufactured  using  biotechnological  processes,  for  orphan  medicinal  products  and  for  human  products 
containing a new active substance which was not authorized in the Community before 20 May 2004 (date of entry into force of 
Regulation  (EC)  No  726/2004)  and  which  are  intended  for  the  treatment  of  AIDS,  cancer,  neurodegenerative  disorder  or 
diabetes. The centralized procedure is optional for any other products containing new active substances not authorized in the 
Community before 20 May 2004 or for products which constitute a significant therapeutic, scientific or technical innovation or 
for which a Community authorization is in the interests of patients at Community level. When a company wishes to place on the 
market  a  medicinal  product  that  is  eligible  for  the  centralized  procedure,  it  sends  an  application  directly  to  the  European 
Medicines  Agency  ("EMA"),  to  be  assessed  by  the  Committee  for  Medicinal  Products  for  Human  Use  ("CHMP").  The 
procedure results in a Commission decision, which is valid in all E.U. Member States. Centrally-authorized products may be 
marketed  in  all  Member  States.  Centralized  procedure:  Full  copies  of  the  MA  application  are  sent  to  a  rapporteur  and  a  co-
rapporteur  designated  by  the  competent  EMA  scientific  committee.  They  coordinate  the  EMA's  scientific  assessment  of  the 
medicinal  product  and  prepare  draft  reports.  Once  the  draft  reports  are  prepared  (other  experts  might  be  called  upon  for  this 
purpose),  they  are  sent  to  the  CHMP,  whose  comments  or  objections  are  communicated  to  the  applicant.  The  rapporteur  is 
therefore the privileged interlocutor of the applicant and continues to play this role, even after the MA has been granted.

The rapporteur and co-rapporteur then assess the applicant's replies, submit them for discussion to the CHMP and, taking 
into  account  the  conclusions  of  this  debate,  prepare  a  final  assessment  report.  Once  the  evaluation  is  completed,  the  CHMP 
gives a favorable or unfavorable opinion as to whether to grant the authorization. When the opinion is favorable, it shall include 
the  draft  summary  of  the  product's  characteristics,  the  package  leaflet  and  the  texts  proposed  for  the  various  packaging 
materials. The time limit for the evaluation procedure is 210 days. The EMA then has fifteen days to forward its opinion to the 
Commission.  This  is  the  start  of  the  second  phase  of  the  procedure:  the  decision-making  process.  The  Agency  sends  to  the 
Commission its opinion and assessment report, together with annexes containing: the SmPC ("Annex 1"); the particulars of the 
MAH  responsible  for  batch  release,  the  particulars  of  the  manufacturer  of  the  active  substance  and  the  conditions  of  the 
marketing authorization ("Annex 2"); and the labelling and the package leaflet ("Annex 3"). The annexes are translated into the 
22 other official languages of the E.U. During the decision-making process, the Commission services verify that the marketing 
authorization complies with Union law. The Commission has fifteen days to prepare a draft decision. The medicinal product is 
assigned  a  Community  registration  number,  which  will  be  placed  on  its  packaging  if  the  marketing  authorization  is  granted. 
During this period, various Commission directorates-general are consulted on the draft marketing authorization decision.

The draft decision is then sent to the Standing Committee on Medicinal Products for Human Use, (Member States have one 
representative each in both of these committees) for their opinions. The Centralized Procedure provides for the grant of a single 
marketing authorization that is valid for all E.U. member states. The Decentralized Procedure provides for approval by one or 
more  other,  or  concerned,  member  states  of  an  assessment  of  an  application  performed  by  one  member  state,  known  as  the 
reference member state. Under this procedure, an applicant submits an application, or dossier, and related materials including a 
draft summary of product characteristics, and draft labeling and package leaflet, to the reference member state and concerned 
member states. The reference member state prepares a draft assessment and drafts of the related materials within 120 days after 
receipt  of  a  valid  application.  Within  90  days  of  receiving  the  reference  member  state's  assessment  report,  each  concerned 
member state must decide whether to approve the assessment report and related materials. If a member state cannot approve the 
assessment report and related materials on the grounds of potential serious risk to the public health, the disputed points may 
eventually be referred to the European Commission, whose decision is binding on all member states.

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We have obtained an orphan medicinal product designation in the E.U. from the EMA for Galafold® for the treatment of 
Fabry disease and the combination product, ATB200/AT2221, for the treatment of Pompe disease. Applications from persons 
or companies seeking "orphan medicinal product designation" for products they intend to develop for the diagnosis, prevention, 
or treatment of life-threatening or very serious conditions that affect not more than 5 in 10,000 persons in the E.U. are reviewed 
by the Committee for Orphan Medicinal Products ("COMP"). In addition, orphan drug designation can be granted if the drug is 
intended for a life threatening, seriously debilitating, or serious and chronic condition in the E.U. and that without incentives it 
is unlikely that sales of the drug in the E.U. would be sufficient to justify developing the drug. Orphan drug designation is only 
available if there is no other satisfactory method approved in the E.U. of diagnosing, preventing, or treating the condition, or if 
such a method exists, the proposed orphan drug will be of significant benefit to patients.

Orphan  drug  designation  provides  opportunities  for  fee  reductions,  protocol  assistance  and  access  to  the  centralized 
procedure  before  and  during  the  first  year  after  marketing  approval.  Fee  reductions  are  not  limited  to  the  first  year  after 
marketing  approval  for  small  and  medium  enterprises.  In  addition,  if  a  product  which  has  an  orphan  drug  designation 
subsequently receives EMA marketing approval for the indication for which it has such designation, the product is entitled to 
orphan market exclusivity, which means the EMA may not approve any other application to market a similar drug for the same 
indication for a period of 10 years. The exclusivity period may be reduced to six years if the designation criteria are no longer 
met,  including  where  it  is  shown  that  the  product  is  sufficiently  profitable  not  to  justify  maintenance  of  market  exclusivity. 
Competitors may receive marketing approval of different drugs or biologics for the indications for which the orphan product 
has exclusivity. In order to do so, however, they must demonstrate that the new drugs or biologics are clinically superior over 
the existing orphan product. This demonstration of clinical superiority may be done at the time of initial approval or in post-
approval studies, depending on the type of marketing authorization granted.

In March 2016, the EMA launched an initiative, the Priority Medicines (“PRIME”) scheme, to facilitate development of 
product candidates in indications, often rare, for which few or no therapies currently exist. The PRIME scheme is intended to 
encourage  drug  development  in  areas  of  unmet  medical  need  and  provides  accelerated  assessment  of  products  representing 
substantial innovation reviewed under the centralized procedure. Many benefits accrue to sponsors of product candidates with 
PRIME designation, including but not limited to, early and proactive regulatory dialogue with the EMA, frequent discussions 
on clinical trial designs and other development program elements, and accelerated MAA assessment once a dossier has been 
submitted. Importantly, a dedicated contact and rapporteur from the CHMP is appointed early in the PRIME scheme facilitating 
increased understanding of the product at EMA’s committee level. An initial meeting initiates these relationships and includes a 
team  of  multidisciplinary  experts  at  the  EMA  to  provide  guidance  on  the  overall  development  and  regulatory  strategies.  In 
September 2020, AT-GTX-501 was granted PRIME designation.

We have obtained a positive opinion for our pediatric investigation plan ("PIP") in the E.U. for Galafold® for the treatment 
of  Fabry  disease  as  well.  A  PIP  is  a  development  plan  aimed  at  ensuring  that  the  necessary  data  are  obtained  to  support  the 
authorization  of  a  medicine  for  children,  through  studies  in  children.  All  applications  for  marketing  authorization  for  new 
medicines  have  to  include  the  results  of  studies  as  described  in  an  agreed  PIP,  unless  the  medicine  is  exempt  because  of  a 
deferral  or  waiver.  This  requirement  also  applies  when  a  marketing-authorization  holder  wants  to  add  a  new  indication, 
pharmaceutical form, or route of administration for a medicine that is already authorized and covered by intellectual property 
rights.  Several  rewards  and  incentives  for  the  development  of  pediatric  medicines  for  children  are  available  in  the  E.U. 
Medicines authorized across the E.U. with the results of studies from a PIP included in the product information are eligible for 
an  extension  of  their  supplementary  protection  certificate  by  six  months.  This  is  the  case  even  when  the  studies'  results  are 
negative. For orphan medicines, the incentive is an additional two years of market exclusivity. Scientific advice and protocol 
assistance  at  the  Agency  are  free  of  charge  for  questions  relating  to  the  development  of  pediatric  medicines.  Medicines 
developed  specifically  for  children  that  are  already  authorized  but  are  not  protected  by  a  patent  or  supplementary  protection 
certificate are eligible for a pediatric-use marketing authorization ("PUMA"). If a PUMA is granted, the product will benefit 
from 10 years of market protection as an incentive.

The U.K. left the E.U. on January 31, 2020 following which, existing E.U. medicinal product legislation continued to apply 
in the U.K. during the transition period under the terms of the E.U.-U.K. Withdrawal Agreement. A transition period, which 
ended on December 31, 2020, maintained access to the E.U. single market and to the global trade deals negotiated by the E.U. 
on behalf of its members. The transition period provided time for the U.K. and E.U. to negotiate a framework for partnership 
for the future, which was then crystallized in the Trade and Cooperation Agreement ("TCA") and became effective on January 
1, 2021. 

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From  January  1,  2021,  the  Medicines  and  Healthcare  products  Regulatory  Agency  ("MHRA")  will  be  the  U.K.’s 
standalone medicines and medical devices regulator. As a result of the Northern Ireland protocol, different rules will apply in 
Northern Ireland than in England, Wales and Scotland (together Great Britain, "GB"); broadly, Northern Ireland will continue 
to follow the E.U. regulatory regime, but its national competent authority will remain the MHRA. The MHRA has published a 
draft guidance on how various aspects of the U.K. regulatory regime for medicines will operate in GB and in Northern Ireland 
following  the  expiry  of  the  Brexit  transition  period  on  December  31,  2020.  The  guidance  includes  clinical  trials,  marketing 
authorizations,  importing,  exporting  and  pharmacovigilance  and  is  relevant  to  any  business  involved  in  the  research, 
development or commercialization of medicines in the U.K. The new guidance will be given effect via the Human Medicines 
Regulations ("Amendment etc.") ("E.U. Exit") Regulations 2019 (the "Exit Regulations"). The U.K. regulatory regime largely 
mirrors that of the E.U. 

The  MHRA  has  introduced  changes  to  national  licensing  procedures,  including  procedures  to  prioritize  access  to  new 
medicines that will benefit patients, an accelerated assessment procedure and new routes of evaluation for novel products and 
biotechnological  products.  All  existing  E.U.  MAs  for  centrally  authorized  products  will  automatically  be  converted  ("grand 
fathered") into U.K. MAs free-of-charge on January 1, 2021. Galafold® now has a U.K. MA and we will have until January 1, 
2022 to submit essential baseline data in order to support the conversion process. 

There will be no pre-marketing authorization orphan designation. Instead, the MHRA will review applications for orphan 
designation in parallel to the corresponding MA application. The criteria are essentially the same, but have been tailored for the 
GB  market,  i.e.  the  prevalence  of  the  condition  in  GB  (rather  than  the  E.U.)  must  not  be  more  than  5  in  10,000.  Should  an 
orphan designation be granted, the period or market exclusivity will be set from the date of first approval of the product in GB 
or E.U./European Economic Area, wherever is earliest.

The  PIP  application  process  for  applicants  is  simplified  by  offering  an  expedited  assessment  where  possible,  and  by 
mirroring the submission format, content and terminology of the E.U.-PIP system. The MHRA is taking decisions on PIP and 
waiver  opinions,  modifications  and  compliance  statements  to  support  pediatric  market  authorization  decisions,  while 
acknowledging that Northern Ireland continues to be part of the E.U.’s system for pediatric medicines development including 
agreement of E.U. PIPs or waivers.

The MHRA has maintained the Early Access to Medicine Scheme ("EAMS"). EAMS is designed to give patients with life 
threatening or seriously debilitating conditions access to medicines that do not yet have a marketing authorization when there is 
a clear unmet medical need. It is anticipated that medicines with a positive EAMS opinion could be made available to patients 
12-18 months ahead of formal marketing authorization. As the initial step in this process, the applicant must apply for and be 
granted  a  Promising  Innovative  Medicine  (“PIM”)  designation.  The  designation  will  be  issued  after  an  MHRA  scientific 
designation meeting on the basis of non-clinical and clinical data available on the product, in a defined disease area. Following 
designation, the applicant is expected to complete a clinical development program within a reasonable time period, in order to 
continue  with  an  application  under  the  EAMS.  In  January  2020,  the  MHRA  issued  a  PIM  designation  for  AT-GAA  for  the 
treatment of late-onset Pompe disease.

We have obtained orphan drug designation in Japan for migalastat for the treatment of Fabry Disease. We also have other 
Orphan  Drug  applications  approved  in  other  world  markets  including  Switzerland,  Australia,  South  Korea  and  Taiwan.  The 
Ministry of Health, Labor, and Welfare, based on the opinion of the Pharmaceutical Affairs and Food Sanitation Council, grants 
orphan status to drugs intended to address serious illnesses with high unmet medical need that affect fewer than 50,000 patients 
in  Japan.  In  2020,  orphan  drug  designation  was  granted  in  Japan  for  AT-GAA  for  the  treatment  of  Pompe  disease.  Orphan 
designation  provides  certain  benefits  and  incentives,  including  priority  review  for  marketing  authorization  and  a  period  of 
10 years of market exclusivity if the drug candidate is approved for the designated indication.

U.S. Foreign Corrupt Practices Act

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

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 Healthcare Reform

The United States and many foreign jurisdictions have enacted or proposed legislative and regulatory changes affecting the 
healthcare  system.  The  United  States  government,  state  legislatures  and  foreign  governments  also  have  shown  significant 
interest in implementing cost-containment programs to limit the growth of government-paid healthcare costs, including price 
controls, restrictions on reimbursement and requirements for substitution of generic products for branded prescription drugs. 

In  recent  years,  Congress  has  considered  reductions  in  Medicare  reimbursement  levels  for  drugs  administered  by 
physicians. CMS, the agency that administers the Medicare and Medicaid programs, also has authority to revise reimbursement 
rates and to implement coverage restrictions for some drugs. Cost reduction initiatives and changes in coverage implemented 
through legislation or regulation could decrease utilization of and reimbursement for any approved products. While Medicare 
regulations apply only to drug benefits for Medicare beneficiaries, private payers often follow Medicare coverage policy and 
payment  limitations  in  setting  their  own  reimbursement  rates.  Therefore,  any  reduction  in  reimbursement  that  results  from 
federal legislation or regulation may result in a similar reduction in payments from private payers. 

The  Patient  Protection  and  Affordable  Care  Act,  as  amended  by  the  Health  Care  and  Education  Affordability 
Reconciliation  Act,  or  collectively  the  Affordable  Care  Act,  substantially  changed  the  way  healthcare  is  financed  by  both 
governmental and private insurers, and significantly impacts the pharmaceutical industry. The Affordable Care Act is intended 
to  broaden  access  to  health  insurance,  reduce  or  constrain  the  growth  of  healthcare  spending,  enhance  remedies  against 
healthcare  fraud  and  abuse,  add  new  transparency  requirements  for  healthcare  and  health  insurance  industries,  impose  new 
taxes and fees on pharmaceutical and medical device manufacturers, and impose additional health policy reforms. Among other 
things,  the  Affordable  Care  Act  expanded  manufacturers’  rebate  liability  under  the  Medicaid  Drug  Rebate  Program  by 
increasing  the  minimum  Medicaid  rebate  for  both  branded  and  generic  drugs,  expanded  the  340B  program,  and  revised  the 
definition of AMP, which could increase the amount of Medicaid drug rebates manufacturers are required to pay to states. The 
legislation  also  extended  Medicaid  drug  rebates,  previously  due  only  on  fee-for-service  Medicaid  utilization,  to  include  the 
utilization  of  Medicaid  managed  care  organizations  as  well  and  created  an  alternative  rebate  formula  for  certain  new 
formulations of certain existing products that is intended to increase the amount of rebates due on those drugs. On February 1, 
2016, CMS issued final regulations to implement the changes to the Medicaid Drug Rebate program under the Affordable Care 
Act. These regulations became effective on April 1, 2016. Since that time, there have been significant ongoing efforts to modify 
or eliminate the Affordable Care Act. 

On January 20, 2017, President Trump signed an executive order directing federal agencies to exercise existing authorities 
to reduce burdens associated with the Affordable Care Act pending further action by Congress. In October 2017, he signed an 
Executive Order which directed federal agencies to modify how the Affordable Care Act is implemented. The Tax Act, enacted 
on  December  22,  2017,  repealed  the  shared  responsibility  payment  for  individuals  who  fail  to  maintain  minimum  essential 
coverage under section 5000A of the Internal Revenue Code of 1986, as amended, or the Code, commonly referred to as the 
individual mandate. 

Other legislative changes have been proposed and adopted since passage of the Affordable Care Act. The Budget Control 
Act of 2011, among other things, created the Joint Select Committee on Deficit Reduction to recommend proposals in spending 
reductions to Congress. The Joint Select Committee did not achieve its targeted deficit reduction of an amount greater than $1.2 
trillion for the fiscal years 2012 through 2021, triggering the legislation’s automatic reductions to several government programs. 
These  reductions  included  aggregate  reductions  to  Medicare  payments  to  healthcare  providers  of  up  to  2.0%  per  fiscal  year, 
which went into effect in April 2013. Subsequent litigation extended the 2% reduction, on average, to 2030 unless additional 
Congressional action is taken. However, pursuant to the Coronavirus Aid, Relief and Economic Security Act, or CARES Act, 
the 2% Medicare sequester reductions have been suspended from May 1, 2020 through March 31, 2021 due to the COVID-19 
pandemic. On January 2, 2013, the American Taxpayer Relief Act was signed into law, which, among other things, reduced 
Medicare  payments  to  several  types  of  providers,  including  hospitals,  imaging  centers  and  cancer  treatment  centers,  and 
increased the statute of limitations period for the government to recover overpayments to providers from three to five years.

Further legislative and regulatory changes under the Affordable Care Act remain possible, although the new Administration 
under President Biden has signaled that it plans to build on the Affordable Care Act and expand the number of people who are 
eligible  for  subsidies  under  it.  President  Biden  indicated  that  he  intends  to  use  executive  orders  to  undo  changes  to  the 
Affordable Care Act made by the former administration and would advocate for legislation to build on the Affordable Care Act. 
It is unknown what form any such changes or any law would take, and how or whether it may affect our business in the future. 
We expect that changes or additions to the Affordable Care Act, the Medicare and Medicaid programs, changes allowing the 

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federal government to directly negotiate drug prices and changes stemming from other healthcare reform measures, especially 
with regard to healthcare access, financing or other legislation in individual states, could have a material adverse effect on the 
healthcare industry. 

The Affordable Care Act has been subject to challenges in the courts. On December 14, 2018, a Texas U.S. District Court 
Judge ruled that the Affordable Care Act is unconstitutional in its entirety because the “individual mandate” was repealed by 
Congress. On December 18, 2019, the Fifth Circuit U.S. Court of Appeals held that the individual mandate is unconstitutional 
and remanded the case to the Texas District Court to reconsider its earlier invalidation of the entire Affordable Care Act. An 
appeal  was  taken  to  the  U.S.  Supreme  Court  which  heard  oral  arguments  in  the  case  on  November  10,  2020.  A  ruling  is 
expected in 2021.

The  Affordable  Care  Act  requires  pharmaceutical  manufacturers  of  branded  prescription  drugs  to  pay  a  branded 
prescription  drug  fee  to  the  federal  government.  Each  individual  pharmaceutical  manufacturer  pays  a  prorated  share  of  the 
branded  prescription  drug  fee,  based  on  the  dollar  value  of  its  branded  prescription  drug  sales  to  certain  federal  programs 
identified  in  the  law.  Furthermore,  the  law  requires  manufacturers  to  provide  a  50%  discount  off  the  negotiated  price  of 
prescriptions filled by beneficiaries in the Medicare Part D coverage gap, referred to as the “donut hole.” The Bipartisan Budget 
Act  of  2018  (the  “BBA”),  among  other  things,  amended  the  Affordable  Care  Act  ,  effective  January  1,  2019,  to  close  the 
coverage  gap  in  most  Medicare  drug  plans,  commonly  referred  to  as  the  “donut  hole,”  by  increasing  from  50  percent  to  70 
percent the point-of-sale discount that is owed by pharmaceutical manufacturers who participate in Medicare Part D.

The Affordable Care Act also expanded the Public Health Service’s 340B drug pricing program. The 340B drug pricing 
program  requires  participating  manufacturers  to  agree  to  charge  statutorily-defined  covered  entities  no  more  than  the  340B 
“ceiling  price”  for  the  manufacturer’s  covered  outpatient  drugs.  The  Affordable  Care  Act  expanded  the  340B  program  to 
include additional types of covered entities: certain free-standing cancer hospitals, critical access hospitals, rural referral centers 
and sole community hospitals, each as defined by the Affordable Care Act. Because the 340B ceiling price is determined based 
on AMP and Medicaid drug rebate data, revisions to the Medicaid rebate formula and AMP definition could cause the required 
340B discounts to increase. 

Payment methodologies may be subject to changes in healthcare legislation and regulatory initiatives as well. For example, 
CMS may develop new payment and delivery models, such as bundled payment models. Recently, there has been heightened 
governmental  scrutiny  over  the  manner  in  which  manufacturers  set  prices  for  their  marketed  products.  Such  scrutiny  has 
resulted  in  several  recent  U.S.  Congressional  inquiries  and  proposed  and  enacted  federal  and  state  legislation  designed  to, 
among other things, bring more transparency to drug pricing, review the relationship between pricing and manufacturer patient 
programs,  reduce  the  cost  of  drugs  under  Medicare,  and  reform  government  program  reimbursement  methodologies  for 
pharmaceutical products.

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

We expect that additional federal, state and foreign healthcare reform measures will be adopted in the future, any of which 
could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in 
limited coverage and reimbursement and reduced demand for our products, once approved, or additional pricing pressures.

Human Capital

At  Amicus,  one  of  our  founding  principles  is  that  we  believe  in  each  other  to  foster  teamwork  and  respect  for  each 
individuals'  contribution.  Our  passion  for  making  a  difference  unites  us.  Supporting  our  globally  diverse  employees  is  an 
essential part of the core values and culture at Amicus. Tied to these values and culture, we believe our success and our ability 
to help patients depends on our capability to attract, develop and retain key personnel. 

We also believe that diversity of experience and thought is essential. At Amicus, we are committed to the advancement of 
diversity  and  inclusion  in  the  workplace.  Diversity  is  the  representation  of  all  our  varied  identities  and  differences  (race, 
ethnicity,  gender,  disability,  sexual  orientation,  gender  identity,  national  origin,  tribe,  socio-economic  status,  thinking  and 
communication styles, etc.), collectively and as individuals. Equity seeks to ensure fair treatment, equality of opportunity, and 

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fairness in access to information and resources for all. Inclusion means that all individuals feel respected, accepted, and valued. 
Inclusion  builds  a  culture  of  belonging,  by  actively  inviting  the  contribution  and  participation  of  all  people.  Combined, 
Diversity,  Equity  and  Inclusion  ("DEI")  creates  a  work  environment  where  every  voice  is  heard  and  valued,  resulting  in  a 
dimensional way of thinking that is used when meeting company goals. DEI at Amicus is about creating an environment that 
supports bringing the authentic employee to the workplace. Our unique experiences, cultures, and backgrounds are what make 
us so great at putting patients at the forefront of what we do and pushing ideas as far and fast as possible. As of December 31, 
2020, we had 483 full-time employees. Currently, 50% of our executive management team are women and 20% of our board of 
directors are women. 

We believe it is critical that our employees are informed and engaged. We communicate frequently and transparently with 
our employees through a variety of communication methods, including video and written communications, town hall meetings, 
round tables, employee pulse surveys, company intranet, and acknowledge individual contributions through a number of reward 
and  recognition  programs.  We  believe  these  engagement  efforts  keep  employees  informed  about  our  strategy,  culture  and 
purpose and motivated to do their best work. As a result of the COVID-19 pandemic, we also further strengthened our digital 
communication and social networking platforms. Our communications during the pandemic have kept our employees informed 
on critical priorities, important actions being taken by management in response to the pandemic, and continued efforts to protect 
employee’s health, safety and well-being.

We  support  and  develop  our  employees  through  global  training  and  development  programs  that  build  and  strengthen 
employees’ leadership and professional skills. These are further emphasized through our engagement on employee career paths 
through  the  annual  goal  process,  a  tuition  reimbursement  program,  providing  the  ability  to  attend  industry  conferences  and 
trainings, and holding patient-mission focused Lunch and Learns. Additionally, we strive to attract and retain the most talented 
employees  in  the  industry  and  across  the  globe  by  offering  competitive  compensation  and  benefits  that  support  their  health, 
financial  and  emotional  well-being.  Our  compensation  philosophy  is  based  on  rewarding  each  employee’s  individual 
contributions and striving to achieve equal pay for equal work regardless of gender, race or ethnicity. We use a combination of 
fixed and variable pay including base salary, bonuses, and share based compensation. 

Our Corporate Information

We were incorporated under the laws of the State of Delaware on February 4, 2002. On February 1, 2021, we changed our 
global headquarters from 1 Cedar Brook Drive, Cranbury, NJ 08512 to 3675 Market Street, Philadelphia, PA 19104 and our 
telephone  number  is  215-921-7600.  Our  website  address  is  www.amicusrx.com.  We  make  available  free  of  charge  on  our 
website our annual, quarterly, and current reports, including amendments to such reports, as soon as reasonably practicable after 
we electronically file such material with, or furnish such material to, the U.S. Securities and Exchange Commission.

Information  relating  to  our  corporate  governance,  including  our  Code  of  Business  Conduct  for  Employees,  Executive 
Officers and Directors, Corporate Governance Guidelines, and information concerning our senior management team, Board of 
Directors, including Board Committees and Committee charters, and transactions in our securities by directors and executive 
officers, is available on our website at www.amicusrx.com under the "Investors — Corporate Governance" caption and in print 
to any stockholder upon request. Any waivers or material amendments to the Code will be posted promptly on our website.

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ITEM 1A.   RISK FACTORS

You should carefully consider these risk factors, together with all of the other information included in this Annual Report 
on Form 10-K, including our consolidated financial statements and the related notes thereto, before you decide whether to make 
an investment in our securities. The risks set forth below are not the only risks we face. Additional risks and uncertainties not 
currently  known  to  us  or  that  we  currently  deem  to  be  immaterial  also  may  materially  and  adversely  affect  our  business, 
prospects,  financial  condition,  cash  flows,  liquidity,  funds  from  operations,  results  of  operations,  stock  price  and  ability  to 
service our indebtedness. In such case, the value of our common stock and the trading price of our securities could decline, and 
you  may  lose  all  or  a  significant  part  of  your  investment.  Some  statements  in  the  following  risk  factors  constitute  forward 
looking  statements.  Please  refer  to  the  explanation  of  the  qualifications  and  limitations  on  forward-looking  statements  under 
“Forward-Looking Statements” of this Form 10-K.

Risks Related to our Ability to Generate and Sustain Revenue

We  depend  heavily  on  sales  of  our  first  product,  Galafold®,  in  Europe,  the  U.S.  and  Japan.  Moreover,  if  we  are 
unable to commercialize Galafold® successfully, or experience significant delays in doing so, our business could be 
materially harmed.

We  have  invested  a  significant  portion  of  our  efforts  and  financial  resources  in  the  development  of  Galafold®  for  the 
treatment of Fabry disease and rely upon sales of Galafold® primarily in Europe and growing sales in the U.S. and Japan. Our 
ability  to  generate  material  product  revenues  will  depend  heavily  on  the  successful  development,  regulatory  approval,  and 
commercialization of Galafold®. We began the commercial launch of Galafold® in the E.U. and U.K. in May 2016, in Japan in 
June  2018  and  in  the  U.S.  in  August  2018  and  continue  to  seek  commercial  approval  in  additional  foreign  jurisdictions. 
Approvals  have  been  granted  in  over  40  countries  around  the  world.  We  will  continue  to  study  Galafold®  in  a  confirmatory 
Phase 4 program and other supportive Phase 4 studies. If the results of the Phase 4 studies negatively change the benefit/risk 
profile  of  Galafold®,  the  commercial  success  of  Galafold®  may  be  substantially  diminished.  Any  adverse  market  event  with 
respect  to  Galafold®,  including  failure  to  obtain  sufficient  market  acceptance,  could  have  a  material  adverse  effect  on  our 
business,  financial  condition  and  results  of  operations.  If  our  sales  of  Galafold®  were  to  decrease,  or  such  sales  were 
substantially or completely displaced in the market, or if we are unable to achieve sufficient market acceptance of Galafold® by 
physicians, patients, third-party payors and others in the medical community, or if we fail to receive commercial approval in 
any  additional  jurisdictions,  it  could  have  a  material  adverse  effect  on  our  business,  financial  condition  and  results  of 
operations. In addition, if Galafold® or similar products from our competitors were to become the subject of litigation and/or an 
adverse governmental action requiring us or such competitors, as applicable, to cease sales of Galafold®, such an event could 
have  a  material  adverse  effect  on  our  business,  financial  condition  and  results  of  operations.  In  addition,  the  entry  into  the 
market  of  competitors  with  new  or  generic  treatments,  including  oral,  ERT  and  gene  therapies,  may  erode  the  market  for 
Galafold® and have a material impact on our business.

Any delay or impediment in our ability to obtain regulatory approval in any region to commercialize, or, when approved, 
obtain coverage and adequate reimbursement from third parties, including government payors, for Galafold® may cause us to be 
unable to meet our revenue guidance or to generate the revenues necessary to continue our research and development pipeline 
activities, thereby adversely affecting our business and our prospects for future growth.

Further, the success of Galafold® will depend on a number of factors, including the following:

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obtaining a sufficiently broad label in each territory that would not unduly restrict patient access;

obtaining additional foreign approvals for Galafold®;

continuing  to  build  and  maintain  an  infrastructure  capable  of  supporting  product  sales,  marketing,  and 
distribution  of  Galafold®  in  the  U.S.,  Europe,  Japan  and  other  territories  where  we  pursue  commercialization 
directly;

maintaining commercial manufacturing arrangements with third-party manufacturers;

maintaining commercial distribution agreements with third-party distributors;

launching commercial sales of Galafold®, where approved, whether alone or in collaboration with others;

acceptance of Galafold®, where approved, by patients, the medical community and third-party payors;

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effectively competing with other therapies, including potential generics and potential gene therapies;

a continued acceptable safety profile of Galafold®;

obtaining and maintaining patent and trade secret protection and regulatory exclusivity;

protecting and enforcing our rights in our intellectual property portfolio;

obtaining and maintaining a commercially viable price for our products; and

continuing to successfully mitigate the impact of the COVID-19 pandemic.

If we do not achieve one or more of these factors in a timely manner or at all, we could experience significant delays or an 

inability to successfully commercialize Galafold®, which would materially harm our business.

If we are not able to obtain, or if there are delays in obtaining, required regulatory approvals, we will not be able to 
commercialize our product or product candidates, and our ability to generate revenue will be materially impaired.

Our product and product candidates, including Galafold® and AT-GAA and the activities associated with their development 
and  commercialization,  including  their  testing,  manufacture,  safety,  efficacy,  recordkeeping,  labeling,  storage,  approval, 
advertising, promotion, sale, distribution, commercialization and reimbursement are subject to comprehensive regulation by the 
European  Medicines  Agency  (“EMA”),  the  Pharmaceutical  and  Medical  Devices  Agency  (“PMDA”),  the  Food  and  Drug 
Administration (“FDA”), and other regulatory agencies in the U.S. and by comparable authorities in other countries. Failure to 
obtain  regulatory  approval  for  our  product  and  product  candidates  will  prevent  us  from  commercializing  our  product  in 
jurisdictions beyond those in which we have obtained regulatory approval for our product or in any jurisdictions for our product 
candidates.

We  have  also  acquired  a  pipeline  of  gene  therapies  in  development  to  treat  rare  metabolic  diseases,  in  addition  to 
development  of  AT-GAA  for  Pompe  disease.  Securing  marketing  approval  for  all  our  product  candidates  requires  the 
submission of extensive preclinical and clinical data and supporting information to regulatory authorities for each therapeutic 
indication  to  establish  the  product  candidate's  safety  and  efficacy.  We  will  continue  to  rely  on  third  parties  to  assist  us  with 
filing and supporting the applications necessary to obtain marketing approvals for product candidates in this process. Securing 
marketing approval also requires the submission of information about the product manufacturing process to, and inspection of 
manufacturing facilities by, the regulatory authorities. Regulatory authorities may determine that any of our products or product 
candidates  are  not  effective  or  only  moderately  effective,  or  have  undesirable  or  unintended  side  effects,  toxicities,  safety 
profiles or other characteristics that preclude us from obtaining marketing approval or that prevent or limit commercial use.

Obtaining approval for all of our product candidates is highly uncertain and we may fail to obtain regulatory approval in 
any or all jurisdictions. The review processes and the processes of regulatory authorities, including the FDA, EMA and PMDA, 
are extensive, lengthy, expensive, and uncertain, and such regulatory authorities may delay, limit, or deny approval of any of 
our product candidates for many reasons, including, but not limited to:

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our  failure  to  demonstrate  to  the  satisfaction  of  the  applicable  regulatory  authorities  that  any  of  our  product 
candidates, including AT-GAA are safe and effective for a particular indication;

the  results  of  clinical  trials  may  not  meet  the  level  of  statistical  significance  or  other  efficacy  or  safety 
parameters required by the applicable regulatory authorities for approval;

the applicable regulatory authority may disagree with the number, design, size, conduct, or implementation of 
our clinical trials or conclude that the data fail to meet statistical or clinical significance;

the applicable regulatory authority may not find the data from preclinical studies and clinical trials sufficient to 
demonstrate that the product candidate's clinical and other benefits outweigh its safety risks;

the  applicable  regulatory  authority  may  disagree  with  our  interpretation  of  data  from  preclinical  studies  or 
clinical trials, and may reject conclusions from preclinical studies or clinical trials, or determine that primary or 
secondary endpoints from clinical trials were not met, or reject safety conclusions from such studies or trials;

the applicable regulatory authority may not accept data generated at one or more of our clinical trial sites;

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the applicable regulatory authority may determine that we did not properly oversee our clinical trials or follow 
the regulatory authority's advice or recommendations in designing and conducting our clinical trials;

an advisory committee, if convened by the applicable regulatory authority, may recommend against approval of 
our application or may recommend that the applicable regulatory authority require, as a condition of approval, 
additional  preclinical  studies  or  clinical  trials,  limitations  on  approved  labeling  or  distribution  and  use 
restrictions, or even if an advisory committee, if convened, makes a favorable recommendation, the respective 
regulatory authority may still not approve the product candidate;

the applicable regulatory authority may only approve a limited label for less than the full indicated population, 
as a second line or rescue therapy, or impose other label restrictions; and

the  applicable  regulatory  authority  may  identify  deficiencies  in  the  chemistry,  manufacturing,  and  control 
sections of our application, our manufacturing processes, facilities, or analytical methods or those of our third-
party contract manufacturers, and this may lead to significant delays in the approval of our product candidates 
or to the rejection of our applications altogether.

The process of obtaining marketing approvals is expensive, may take many years, if approval is obtained at all, and can 
vary  substantially  based  upon  a  variety  of  factors,  including  the  type,  complexity,  and  novelty  of  the  product  candidates 
involved.  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  have  substantial  discretion  in  the  approval  process  and  may 
refuse  to  accept  any  application  or  may  decide  that  our  data  are  insufficient  for  approval  and  require  additional  preclinical, 
clinical,  or  other  studies.  In  addition,  varying  interpretations  of  the  data  obtained  from  preclinical  and  clinical  testing  could 
delay, limit, or prevent marketing approval of a product candidate. Any marketing approval we ultimately obtain may be limited 
or subject to restrictions or post-approval commitments that render the approved product not commercially viable.

If we are unable to establish and maintain sales and marketing capabilities or enter into agreements with third parties 
to market and sell our product or product candidates, we may not be successful in commercializing Galafold®, or any 
product candidate, , including AT-GAA, if and when they are approved.

To achieve commercial success for any approved product, we must continue to develop and maintain a sales and marketing 
organization or outsource commercialization to third parties. We have established our own sales and marketing capabilities to 
promote  Galafold®  in  Europe,  Japan,  the  U.S.  and  other  foreign  jurisdictions  with  a  targeted  sales  force.  There  are  risks 
involved with establishing and maintaining our own sales and marketing capabilities and entering into arrangements with third 
parties  to  perform  these  services  for  any  of  our  products  or  product  candidates.  For  example,  recruiting  and  training  a  sales 
force is expensive and time consuming and could delay any product launch. If the commercial launch of a product candidate for 
which we recruit a sales force and establish marketing capabilities is delayed or does not occur for any reason, we would have 
prematurely or unnecessarily incurred these commercialization expenses. This may be costly, and our investment would be lost 
if we cannot retain or reposition our sales and marketing personnel. Similarly, if we enter into agreements with third parties, 
including the out licensing of our product or product candidates, we may choose to reduce or eliminate our sales and marketing 
operations and thereby lose our commercialization investment.

Factors that may inhibit our efforts to successfully commercialize Galafold®, or our product candidates, if and when they 

are approved by regulatory authorities, including the FDA, PMDA and EMA, on our own include:

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our inability to recruit, train and retain adequate numbers of effective sales and marketing personnel;

the  inability  of  sales  personnel  to  obtain  access  to  adequate  numbers  of  physicians  to  prescribe  any  future 
products;

the  lack  of  complementary  products  to  be  offered  by  sales  personnel,  which  may  put  us  at  a  competitive 
disadvantage relative to companies with more extensive product lines;

unforeseen costs and expenses associated with creating an independent sales and marketing organization; and

efforts by our competitors to commercialize products at or about the time when our product candidates would be 
coming to market.

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We  may  also  co-promote  or  out  license  our  product  or  product  candidates  in  various  markets  with  pharmaceutical  and 
biotechnology companies in instances where we believe that a larger sales and marketing presence will expand the market or 
accelerate  penetration.  If  we  do  enter  into  co-promote  or  out  licensing  arrangements  with  third  parties,  our  product  revenues 
will  be  lower  than  if  we  directly  sold  and  marketed  our  products  and  any  revenues  received  under  such  arrangements  will 
depend on the skills and efforts of others.

We may not be successful in entering into distribution arrangements and marketing alliances with third parties. Our failure 
to enter into these arrangements on favorable terms could delay or impair our ability to commercialize our product and product 
candidates  and  could  increase  our  costs  of  commercialization.  Dependence  on  distribution  arrangements  and  marketing 
alliances to commercialize our products and product candidates will subject us to a number of risks, including:

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we  may  not  be  able  to  control  the  amount  and  timing  of  resources  that  our  distributors  may  devote  to  the 
commercialization of our product or product candidates;

our distributors may experience financial difficulties;

our distributors may experience compliance related issues and associated government investigations;

our  distributors  may  require  transfer  of  the  marketing  authorization  for  our  products  and  may  refuse  to 
relinquish them at the end of the distribution relationship;

business  combinations  or  significant  changes  in  a  distributor's  business  strategy  may  also  adversely  affect  a 
distributor's willingness or ability to complete its obligations under any arrangement; and

these arrangements are often terminated or allowed to expire, which could interrupt the marketing and sales of a 
product and decrease our revenue.

If we are unable to establish and maintain adequate sales, marketing and distribution capabilities, whether independently or 

with third parties, we may not be able to generate product revenue at our current guidance and may not ever become profitable.

If  the  market  opportunities  for  our  product  or  product  candidates  are  smaller  than  we  believe  they  are,  then  our 
revenues may be adversely affected, and our business may suffer.

Each of the diseases that our product and most advanced product candidates are being developed to address is rare. Our 
projections of both the number of people who have these diseases, as well as the subset of people with these diseases who have 
the potential to benefit from treatment with our product and product candidates, are based on estimates.

Currently,  most  reported  estimates  of  the  prevalence  of  these  diseases  are  based  on  studies  of  small  subsets  of  the 
population of specific geographic areas, which are then extrapolated to estimate the prevalence of the diseases in the broader 
world population. In addition, as new studies are performed the estimated prevalence of these diseases may change. There can 
be  no  assurance  that  the  prevalence  of  Fabry  disease,  Pompe  disease,  Batten  disease  or  other  rare  diseases  in  the  study 
populations,  particularly  in  these  newer  studies,  accurately  reflects  the  prevalence  of  these  diseases  in  the  broader  world 
population. If our estimates of the prevalence of Fabry disease, Pompe disease, Batten disease, or other rare diseases or of the 
number of patients who may benefit from treatment with our product or product candidates prove to be incorrect, the market 
opportunities  for  our  product  and  product  candidates  may  be  smaller  than  we  believe  they  are,  our  prospects  for  generating 
revenue at our guidance levels may be adversely affected and our business may suffer.

Galafold® or any of our product candidates that receive regulatory approval may fail to achieve the degree of market 
acceptance by physicians, patients, third-party payors and others in the medical community necessary for commercial 
success.

Galafold® and any of our other products or product candidates that receive regulatory approval may nonetheless fail to gain 
sufficient market acceptance by physicians, patients, third-party payors and others in the medical community. If these products 
do  not  achieve  an  adequate  level  of  acceptance,  we  may  not  generate  significant  product  revenues  or  any  profits  from 
operations.  The  degree  of  market  acceptance  of  our  product  candidates,  if  approved  for  commercial  sale,  will  depend  on  a 
number of factors, including:

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the efficacy and potential advantages compared to competitive or alternative treatments, including generics and 
gene therapies;

the prevalence and severity of any side effects;

the ability to offer our product and product candidates for sale at competitive prices;

convenience and ease of administration compared to alternative treatments;

the  willingness  of  the  target  patient  population  to  try  new  therapies  and  of  physicians  to  prescribe  these 
therapies;

the strength of marketing and distribution support and timing of market introduction of competitive products;

publicity concerning our products or competing products and treatments; and

sufficient third-party coverage or reimbursement.

Our  ability  to  negotiate,  secure  and  maintain  third-party  coverage  and  reimbursement  may  be  affected  by  political, 
economic and regulatory developments in the U.S., E.U., U.K. and other jurisdictions. Governments continue to impose cost 
containment  measures,  and  third-party  payors  are  increasingly  challenging  prices  charged  for  medicines  and  examining  their 
cost effectiveness, in addition to their safety and efficacy. These and other similar developments could significantly limit the 
degree of market acceptance of Galafold® and any of our product candidates that receive marketing approval and we may fail to 
meet our revenue targets.

We  face  substantial  competition,  which  may  result  in  others  discovering,  developing  or  commercializing  products 
before or more successfully than we do.

The development and commercialization of new drug products is highly competitive. We face competition with respect to 
our  current  product,  Galafold®,  and  product  candidates,  including  AT-GAA,  and  any  products  we  may  seek  to  develop  or 
commercialize  in  the  future  from  major  pharmaceutical  companies,  specialty  pharmaceutical  companies,  biotechnology  and 
gene therapy companies worldwide. For example, several large pharmaceutical and biotechnology companies currently market 
and  sell  products  for  the  treatment  of  lysosomal  storage  disorders,  including  Fabry  disease.  These  products  include  Sanofi 
Aventis' Fabrazyme® and Takeda’s Replagal®, as well as other Fabry treatment products in development. In addition, Sanofi 
markets  and  sells  Myozyme®  and  Lumizyme®  for  the  treatment  of  Pompe  disease  and  has  another  product  for  Pompe  in 
development, Neo-GAA. We are also aware of other enzyme replacement and substrate reduction therapies in development by 
third parties for Pompe, as well as potential gene therapies for both Fabry and Pompe and our other product candidates.

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. Our competitors may develop products that are more effective, safer, more convenient or 
less  costly  than  any  that  we  are  developing  or  that  would  render  our  product  candidates  obsolete  or  noncompetitive.  Our 
competitors  may  also  obtain  FDA,  EMA,  or  other  regulatory  approval  for  their  products  more  rapidly  than  we  may  obtain 
approval for ours, could achieve regulatory exclusivity and block us from approval and marketing our products for a significant 
period of time. We may also face competition from off-label use of other approved therapies. There can be no assurance that 
developments  by  others  will  not  render  our  product  candidates  or  any  acquired  products  obsolete  or  noncompetitive  either 
during the research phase or once the products reaches commercialization.

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We  believe  that  many  competitors,  including  academic  institutions,  government  agencies,  public  and  private  research 
organizations,  large  pharmaceutical  companies  and  smaller  more  focused  companies,  are  attempting  to  develop  therapies  for 
many of our target indications. Many of our competitors have significantly greater financial resources and expertise in research 
and  development,  manufacturing,  preclinical  testing,  conducting  clinical  trials,  obtaining  regulatory  approvals,  prosecuting 
intellectual  property  rights  and  marketing  approved  products  than  we  do.  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  or  advantageous  to  our  business.  In  addition,  if  we  obtain  regulatory  approvals  for  our  product  candidates, 
manufacturing efficiency and marketing capabilities are likely to be significant competitive factors. We currently rely on third-
party  manufacturers  for  our  product  and  all  of  our  product  candidates  including  our  gene  therapies.  Further,  many  of  our 
competitors  have  substantial  resources  and  expertise  in  conducting  collaborative  arrangements,  sourcing  in-licensing 
arrangements, manufacturing and acquiring new business lines or businesses that are greater than our own.

A variety of risks associated with international operations could materially adversely affect our business.

Galafold®,  and  any  of  our  other  product  candidates,  including  AT-GAA,  that  may  be  approved  in  the  future  for 
commercialization in the E.U., U.K. or in other foreign countries are or will be subject to additional risks related to international 
operations or entering into international business relationships, including:

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different regulatory requirements for maintaining approval of drugs in foreign countries;

reduced protection for contractual and intellectual property rights in some countries;

unexpected changes in tariffs, trade barriers and regulatory requirements;

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  revenue,  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.;

noncompliance with the U.S. Foreign Corrupt Practices Act, the U.K. Bribery Act 2010 and similar anti-bribery 
and anti-corruption laws in other jurisdictions;

tighter restrictions on privacy and the collection and use of patient data;

the impact of BREXIT on regulatory standards and operations; and

business  interruptions  resulting  from  geopolitical  actions  (including  war  and  terrorism),  pandemic  diseases 
(such as the recent spread of COVID-19 “coronavirus”), or natural disasters (including earthquakes, typhoons, 
floods and fires).

In addition, there are complex regulatory, tax, labor and other legal requirements imposed by the E.U., U.K., and many of 
the  individual  countries  in  Europe,  Asia  and  Latin  America  with  which  we  will  need  to  comply.  Many  U.S.-based 
biopharmaceutical  companies  have  found  the  process  of  marketing  their  own  products  in  Europe  and  other  international 
geographies to be very challenging.

The impact of Brexit on our international operations is currently unknown but could have a material impact on our 
business.

In a referendum held in the U.K. on June 23, 2016, a majority of those voting voted for the U.K. to leave E.U., commonly 
referred to as "Brexit". On March 29, 2017, the U.K. government delivered to the European Council notice of its intention to 
leave  the  E.U.  The  negotiation  period  (under  Article  50  of  the  Treaty  on  European  Union)  had  been  extended  repeatedly; 
however, on January 24, 2020, the U.K. and the E.U. entered into a withdrawal agreement pursuant to which the U.K. formally 
left the E.U. on January 31, 2020. A transition period which ended on December 31, 2020, maintained access to the E.U. single 
market and to the global trade deals negotiated by the E.U. on behalf of its members and remain subject to E.U. law. 

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As  of  January  1,  2021,  the  Medicines  and  Healthcare  products  Regulatory  Agency  ("MHRA")  is  the  U.K.’s  standalone 
medicines  and  medical  devices  regulator.  As  a  result  of  the  Northern  Ireland  protocol,  different  rules  will  apply  in  Northern 
Ireland than in England, Wales and Scotland (together Great Britain, "GB"); broadly, Northern Ireland will continue to follow 
the E.U. regulatory regime, but its national competent authority will remain the MHRA. The MHRA has published guidance on 
how  various  aspects  of  the  U.K.  regulatory  regime  for  medicines  will  operate  in  GB  and  in  Northern  Ireland  following  the 
expiry of the Brexit transition period. The guidance covers clinical trials, marketing authorizations, importing, exporting and 
pharmacovigilance and is relevant to any business involved in the research, development or commercialization of medicines in 
the  U.K.  The  new  guidance  was  given  effect  via  the  Human  Medicines  Regulations  ("Amendment  etc.")  ("E.U.  Exit") 
Regulations  2019  (the  "Exit  Regulations").  The  U.K.  regulatory  regime  largely  mirrors  that  of  the  E.U.  but  the  MHRA  has 
introduced changes to national licensing procedures, including procedures to prioritize access to new medicines that will benefit 
patients, an accelerated assessment procedure and new routes of evaluation for novel products and biotechnological products. 
All  existing  E.U.  marketing  authorizations  for  centrally  authorized  products  were  automatically  converted  ("grand  fathered") 
into U.K. MAs free-of-charge on January 1, 2021. The ultimate impact of the “leave” vote is not clear as there are still some 
legal  and  practical  uncertainties  surrounding  the  regulation  of  medicines  in  the  U.K.  and  a  risk  of  potential  disruption  in  the 
movement  of  goods,  services  and  people  between  the  U.K.  and  the  E.U.  Such  uncertainties  and  disruptions  could  result  in 
higher  costs  of  conducting  business  in  the  U.K.  and  the  E.U.  and  negatively  affect  our  business,  operations  and  financial 
condition.

Following  the  receipt  of  marketing  approval  of  our  product  or  any  product  candidates,  the  products  may  become 
subject  to  unfavorable  pricing  regulations,  third-party  coverage  and  reimbursement  practices  or  healthcare  reform 
initiatives, which would harm our business.

The  regulations  and  practices  that  govern  marketing  approvals,  pricing,  commercialization,  coverage  and  reimbursement 
for  new  drug  products  vary  widely  from  country  to  country  and  product  to  product.  Current  and  future  legislation  may 
significantly  change  the  approval  requirements  in  ways  that  could  involve  additional  costs  and  cause  delays  in  obtaining 
approvals. Some countries, including almost all of the member states of the European Economic Area, require approval of the 
sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing or product 
licensing  approval  is  granted.  In  some  foreign  markets,  including  the  European  market,  prescription  pharmaceutical  pricing 
remains subject to continuing governmental control even after initial approval is granted and approved products are subject to 
re-reviews, class reviews and other governmental controls which can negatively impact pricing originally approved. As a result, 
we might obtain marketing approval for a product in a particular country, but then be subject to price regulations that delay our 
commercial  launch  of  the  product,  possibly  for  lengthy  time  periods,  and  negatively  impact  any  revenues  we  are  able  to 
generate  from  the  sale  of  the  product  in  that  country.  Adverse  pricing  limitations  may  hinder  our  ability  to  recoup  our 
investment in one or more product candidates, even if our product candidates obtain marketing approval. This is particularly 
true in the case of gene therapies for which payors and manufacturers must develop different pricing models for this growing 
area.  Current  pricing  for  gene  therapies  may  not  be  sustainable  in  the  future  which  would  have  a  negative  impact  on  our 
revenues and business.

Our ability to commercialize Galafold® or any product candidate, including AT-GAA, successfully also will depend in part 
on the extent to which coverage and reimbursement for these products and related treatments will be available from government 
health administration authorities, private health insurers and other organizations. Government authorities and other third-party 
payors, such as private health insurers and health maintenance organizations, decide which medications they will pay for and 
establish  reimbursement  levels.  A  primary  trend  in  the  European  and  U.S.  healthcare  industries  and  elsewhere  is  cost 
containment. It is currently unknown what impact, if any proposed changes by the federal and state governments in the U.S. and 
similar changes in foreign countries may have on pricing and reimbursement, particularly with respect to government programs 
such as Medicare and Medicaid and Pharmacy Benefit Managers for commercial plans, and including reimportation, reference 
pricing and limitations on manufacturer price increases.

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Prices at which we or our customers seek reimbursement for our products can be subject to challenge, reduction or denial 
by  the  government  and  other  payers.  Increasingly,  third-party  payors  are  requiring  that  drug  companies  provide  them  with 
predetermined discounts from list prices and are challenging the prices charged for pharmaceutical products. We cannot be sure 
that  coverage  and  reimbursement  will  continue  to  be  available  for  Galafold®  or  any  product  that  we  commercialize,  and  in 
particular gene therapies, and, if coverage and reimbursement are available, the level of reimbursement. Reimbursement may 
impact the demand for, or the price of, Galafold® and any product candidate for which we obtain marketing approval. Obtaining 
reimbursement for our product candidates when approved may be particularly difficult because of the higher prices typically 
associated  with  drugs  directed  at  smaller  orphan  populations  of  patients  and  the  pricing  and  reimbursement  of  competitive 
products. In addition, third-party payors are likely to impose strict requirements for reimbursement of a higher priced drug. If 
reimbursement  is  not  available  or  is  available  only  to  limited  levels,  we  may  not  be  able  to  successfully  commercialize  any 
product for which we obtain marketing approval.

The United States and many foreign jurisdictions have enacted or proposed legislative and regulatory changes affecting the 
healthcare  system  that  may  affect  our  ability  to  profitably  sell  our  product  and  product  candidates,  if  approved.  The  United 
States  government,  state  legislatures  and  foreign  governments  also  have  shown  significant  interest  in  implementing  cost-
containment  programs  to  limit  the  growth  of  government-paid  healthcare  costs,  including  price  controls,  restrictions  on 
reimbursement and requirements for substitution of generic products for branded prescription drugs. The Affordable Care Act 
was intended to broaden access to health insurance, reduce or constrain the growth of healthcare spending, enhance remedies 
against fraud and abuse, add transparency requirements for the healthcare and health insurance industries, impose new taxes and 
fees on the health industry and impose additional health policy reforms.

There  have  been  significant  ongoing  judicial,  administrative,  executive  and  legislative  efforts  to  modify  or  eliminate  the 
Affordable Care Act. For example, the Tax Act enacted on December 22, 2017, repealed the shared responsibility payment for 
individuals who fail to maintain minimum essential coverage under section 5000A of the Internal Revenue Code, commonly 
referred  to  as  the  individual  mandate.  The  Trump  administration  issued  executive  orders  which  sought  to  reduce  burdens 
associated with the Affordable Care Act and modified how it was implemented. Other legislative changes have been proposed 
and adopted since passage of the Affordable Care Act. The Budget Control Act of 2011, among other things, created the Joint 
Select  Committee  on  Deficit  Reduction  to  recommend  proposals  in  spending  reductions  to  Congress.  The  Joint  Select 
Committee did not achieve its targeted deficit reduction of an amount greater than $1.2 trillion for the fiscal years 2012 through 
2021,  triggering  the  legislation’s  automatic  reductions  to  several  government  programs.  These  reductions  included  aggregate 
reductions to Medicare payments to healthcare providers of up to 2.0% per fiscal year, which went into effect in April 2013. 
Subsequent litigation extended the 2% reduction, on average, to 2030 unless additional Congressional action is taken. However, 
pursuant  to  the  Coronavirus  Aid,  Relief  and  Economic  Security  Act,  or  CARES  Act,  the  2%  Medicare  sequester  reductions 
have  been  suspended  from  May  1,  2020  through  March  31,  2021  due  to  the  COVID-19  pandemic.  On  January  2,  2013,  the 
American Taxpayer Relief Act was signed into law, which, among other things, reduced Medicare payments to several types of 
providers, including hospitals, imaging centers and cancer treatment centers, and increased the statute of limitations period for 
the government to recover overpayments to providers from three to five years.

The Affordable Care Act has also been subject to challenges in the courts. On December 14, 2018, a Texas U.S. District 
Court Judge ruled that the Affordable Care Act is unconstitutional in its entirety because the “individual mandate” was repealed 
by  Congress.  On  December  18,  2019,  the  Fifth  Circuit  U.S.  Court  of  Appeals  held  that  the  individual  mandate  is 
unconstitutional and remanded the case to the Texas District Court to reconsider its earlier invalidation of the entire Affordable 
Care Act. An appeal was taken to the U.S. Supreme Court which heard oral arguments in the case on November 10, 2020. A 
ruling is expected in 2021.

Further changes to and under the Affordable Care Act remain possible, although the new Biden administration has signaled 
that  it  plans  to  build  on  the  Affordable  Care  Act  and  expand  the  number  of  people  who  are  eligible  for  subsidies  under  it. 
President Biden indicated that he intends to undo changes to the Affordable Care Act made by the Trump administration and 
would advocate for legislation to build on the Affordable Care Act. It is unknown precisely what form any such changes or any 
law  would  take,  and  how  or  whether  it  may  affect  our  business  in  the  future.  We  expect  that  changes  or  additions  to  the 
Affordable Care Act, the Medicare and Medicaid programs, changes allowing the federal government to directly negotiate drug 
prices and changes stemming from other healthcare reform measures, especially with regard to healthcare access, financing or 
other legislation in individual states, could have a material adverse effect on the healthcare industry. 

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We expect that the Affordable Care Act, as well as other healthcare reform measures that have and may be adopted in the 
future, may result in more rigorous coverage criteria and in additional downward pressure on the price that we receive for our 
product and product candidates, if approved, and could seriously harm our future revenues. Any reduction in reimbursement 
from  Medicare,  Medicaid,  or  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 and maintain profitability of our product and product candidates, if approved.

The FDA and other regulatory agencies actively enforce the laws and regulations prohibiting the promotion of off-
label uses. If we are found to have promoted off-label uses, we may become subject to significant liability. 

The FDA and other regulatory agencies strictly regulate the promotional claims that may be made about prescription drug 
products. In particular, a product may not be promoted in the U.S. for uses that are not approved by the FDA as reflected in the 
product's approved labeling. Further, any labeling approved by the FDA for Galafold® or any of our other product candidates 
may  include  restrictions  on  use,  or  other  limitations.  The  FDA  may  impose  further  requirements  or  restrictions  on  the 
distribution or use of any of our other product candidates as part of a REMS plan. Physicians may nevertheless prescribe such 
products to their patients in a manner that is inconsistent with the approved label. If we are found to have promoted such off-
label uses, we may become subject to significant liability. Similarly, the FDA strictly regulates the promotion of investigational 
products prior to approval, known as pre-approval promotion. The federal government has levied large civil and criminal fines 
and  /  or  other  penalties  against  companies  for  alleged  improper  promotion  and  has  investigated  and  /  or  prosecuted  several 
companies in relation to off-label and/or pre-approval promotion. The FDA has also requested that certain companies enter into 
consent  decrees  or  permanent  injunctions  under  which  specified  promotional  conduct  is  changed,  curtailed  or  prohibited  or 
have delayed approval of investigational products due to pre-approval conduct. 

Product liability lawsuits against us could cause us to incur substantial liabilities and to limit commercialization of 
any products that we may develop. 

We  face  an  inherent  risk  of  product  liability  exposure  related  to  the  testing  of  our  product  candidates  in  human  clinical 
trials and will face an even greater risk when we commercially sell any products that we develop, including those which may 
arise  from  misuse  or  malfunction  of,  or  design  flaws  in,  such  products,  whether  or  not  such  problems  directly  relate  to  the 
products and services we have provided. If we cannot successfully defend ourselves against claims that our product candidates 
or products caused injuries, we will incur substantial liabilities. Regardless of merit or eventual outcome, liability claims may 
result in:

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reduced resources of our management to pursue our business strategy;

decreased demand for any product candidates or products that we may develop;

injury to our reputation and significant negative media attention;

regulatory  investigations,  prosecutions  or  enforcement  actions  that  could  require  costly  recalls  or  product 
modifications;

withdrawal of clinical trial participants;

significant costs to defend the related litigation;

increased insurance costs, or an inability to maintain appropriate insurance coverage;

substantial  monetary  awards  to  trial  participants  or  patients,  including  awards  that  substantially  exceed  our 
product liability insurance, which we would then be required to pay from other sources, if available, and would 
damage our ability to obtain liability insurance at reasonable costs, or at all, in the future;

loss of revenue; and

the inability to commercialize any products that we may develop.

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The amount of insurance that we currently hold may not be adequate to cover all liabilities that we may incur. We have 
increased our insurance coverage for the commercialization of Galafold® and may increase insurance coverage when, and if, we 
begin  commercializing  any  other  product  candidate  that  receives  marketing  approval.  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. On occasion, large judgments have been awarded in lawsuits based on drugs that had unanticipated side 
effects. A successful product liability claim or a series of claims brought against us could cause our stock price to fall and, if 
judgments exceed our insurance coverage, could decrease our available cash and adversely affect our business.

If the FDA or other applicable regulatory authorities approve generic or biosimilar products with claims that compete 
with  our  product  or  any  of  our  product  candidates,  it  could  reduce  our  sales  of  our  product  or  those  product 
candidates.

In the U.S., after an NDA is approved, such as Galafold®, the product covered thereby becomes a "listed drug" which can, 
in turn, be cited by potential competitors in support of approval of an abbreviated NDA, or ANDA. The Federal Food, Drug, 
and  Cosmetic  Act,  or  the  FD&C  Act,  FDA  regulations  and  other  applicable  regulations  and  policies  provide  incentives  to 
manufacturers to create modified, non-infringing versions of a drug to facilitate the approval of an ANDA or other application 
for generic substitutes. These manufacturers might only be required to conduct a relatively inexpensive study to show that their 
product  has  the  same  active  ingredients,  dosage  form,  strength,  route  of  administration,  and  conditions  of  use,  or  product 
labeling, as our product or product candidate and that the generic product is absorbed in the body at the same rate and to the 
same extent as, or is bioequivalent to, our product or product candidate. These generic equivalents would be significantly less 
costly than ours to bring to market and companies that produce generic equivalents are generally able to offer their products at 
lower prices. Thus, after the introduction of a generic competitor, a significant percentage of the sales of any branded product 
are  typically  lost  to  the  generic  product.  Accordingly,  competition  from  generic  equivalents  to  our  product  or  product 
candidates, including Galafold®, would substantially limit our ability to generate revenues and therefore to obtain a return on 
the investments we have made in our product or product candidates.

The  Biologics  Price  Competition  and  Innovation  Act,  or  BPCIA,  was  enacted  as  part  of  the  Patient  Protection  and 
Affordable  Care  Act  of  2010,  or  the  ACA,  Pub.  L.  No.  111-148  (2010).  The  BPCIA  authorizes  the  FDA  to  approve 
"abbreviated" BLAs for products whose sponsors demonstrate they are "biosimilar" to reference products previously approved 
under  BLAs,  including  AT-GAA,  if  approved.  The  FDA  may  also  separately  determine  whether  "biosimilar"  products  are 
"interchangeable"  with  their  reference  products.  However,  the  FDA  may  not  approve  an  "abbreviated"  BLA  for  a  biosimilar 
product until at least twelve years after the date on which the BLA for the reference product was approved. FDA approval of 
abbreviated BLAs could be further delayed if the reference products are subject to unexpired and otherwise valid patents.

Prior to the enactment of the BPCIA, information in approved BLAs could not be relied upon by other manufacturers to 
establish the safety and efficacy of their products for which they were seeking FDA approval. Accordingly, if our products such 
as AT-GAA are approved under a BLA, other manufacturers potentially could develop and seek FDA approval of "biosimilar" 
products at some point in the future, including a biosimilar of AT-GAA.

We  may  expend  our  limited  resources  to  pursue  a  particular  product,  product  candidate  or  indication  and  fail  to 
capitalize on a product, product candidates or indications that may be more profitable or for which there is a greater 
likelihood of success.

Because we have limited financial and managerial resources, we focus on research programs and product candidates for 
specific  indications.  As  a  result,  we  may  forego  or  delay  pursuit  of  opportunities  with  other  product  candidates  or  for  other 
indications  that  later  prove  to  have  greater  commercial  potential.  Our  resource  allocation  decisions  may  cause  us  to  fail  to 
capitalize on viable commercial products or profitable market opportunities. Our spending on current and future research and 
development programs and product candidates for specific indications may not yield any commercially viable products.

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We  have  historically  been  focused  on  the  development  and  commercialization  of  Galafold®,  a  small  molecule  for  Fabry 
disease and in a next generation ERT treatment for Pompe disease, AT-GAA. In 2018, we also made a significant investment in 
potential gene therapies for Fabry, Pompe, CDD, Batten’s disease and other LDs. Notwithstanding our large investment in gene 
therapies  and  Pompe  ERT  to  date  and  anticipated  future  expenditures  in  related  proprietary  technologies,  we  have  not  yet 
developed, and may never successfully develop, any marketed drugs using ERT and gene therapy approaches. As a result of 
pursuing  the  development  and  commercialization  of  our  product  and  product  candidates  using  our  proprietary  and  licensed 
technologies, we may fail to develop products or product candidates, or address indications based on other scientific approaches 
that may offer greater commercial potential or for which there is a greater likelihood of success. Research programs to identify 
new  product  candidates  require  substantial  technical,  financial  and  human  resources.  These  research  programs  may  initially 
show promise in identifying potential product candidates yet fail to yield product candidates for clinical development.

Risks Related to our Products and the Regulatory Approval and Clinical Development of our Product Candidates

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

Undesirable  side  effects  caused  by  our  product,  Galafold®  or  product  candidates  including  AT-GAA,  CLN6  and  CLN3, 
could  interrupt,  delay  or  halt  clinical  trials  and  could  result  in  the  denial  of  regulatory  approval  by  the  FDA,  EMA  or  other 
regulatory authorities for any or all targeted indications, and in turn prevent us from commercializing our product or product 
candidates and generating revenues from their sale. In addition, if we or others identify undesirable side effects caused by our 
products or product candidates after receipt of marketing approval:

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regulatory authorities may require the addition of restrictive labeling statements;

regulatory authorities may withdraw their approval of the product; and

we may be required to change the way the product is administered, or additional clinical trials are conducted.

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

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Any  product  or  product  candidate  for  which  we  obtain  marketing  approval  could  be  subject  to  restrictions  or 
withdrawal from the market and we may be subject to penalties or other enforcement actions if we fail to comply with 
regulatory  requirements  or  if  we  experience  unanticipated  problems  with  our  product  or  our  product  candidates, 
when and if any of them are approved.

Any product or product candidate for which we obtain marketing approval, along with the manufacturing processes, post-
approval  clinical  data,  labeling,  advertising  and  promotional  activities  for  such  product,  will  be  subject  to  continual 
requirements of and review by the FDA, EMA, PMDA and other regulatory authorities. For example, the FDA's requirements 
include  submissions  of  safety  and  other  post-marketing  information  and  reports,  registration  requirements,  Current  Good 
Manufacturing Practices, or cGMP, requirements relating to manufacturing, quality control, quality assurance and complaints 
and  corresponding  maintenance  of  records  and  documents,  requirements  regarding  the  distribution  of  samples  to  healthcare 
professionals and recordkeeping. Even if marketing approval of a product candidate is granted, the approval may be subject to 
limitations on the indicated uses for which the product may be marketed or may be subject to significant conditions of approval, 
including  the  requirement  of  a  REMS.  The  FDA  also  may  impose  requirements  for  costly  post-marketing  studies  or  clinical 
trials  and  surveillance  to  monitor  the  safety  or  efficacy  of  the  product.  The  labeling,  advertising,  promotion,  marketing  and 
distribution  of  a  drug,  biologic,  or  gene  therapy  product  also  must  be  in  compliance  with  FDA  requirements  which  include, 
among  others,  promotional  activities,  standards  and  regulations  for  direct-to-consumer  advertising,  promotional  activities 
involving the internet, and industry sponsored scientific and educational activities. In general, all product promotion must be 
consistent  with  the  labeling  approved  by  the  FDA  for  such  product,  contain  a  balanced  presentation  of  information  on  the 
product's uses, benefits, risks, and important safety information and limitations on use, and otherwise not be false or misleading. 
The FDA has very broad enforcement authority, and failure to abide by these regulations can result in penalties, including the 
issuance of a warning letter directing a company to correct deviations from regulatory standards and enforcement actions that 
can include seizures, injunctions and criminal prosecution. Failure to comply with applicable FDA requirements and restrictions 
also may subject a company to adverse publicity and enforcement action by the FDA, the U.S. Department of Justice ("DOJ") 
or  the  Office  of  the  Inspector  General  of  the  U.S.  Department  of  Health  and  Human  Services  ("HHS")  as  well  as  state 
authorities. This could subject us to a range of penalties that could have a significant commercial impact, including civil and 
criminal fines and agreements that materially restrict the manner in which a company promotes or distributes its products.

In addition, later discovery of previously unknown adverse events or other problems with our products, manufacturers or 

manufacturing processes, or failure to comply with regulatory requirements, may yield various results, including:

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restrictions on such products, manufacturers or manufacturing processes;

changes to or restrictions on the labeling or marketing of a product;

restrictions on product distribution or use;

requirements to implement a REMS;

requirements to conduct post-marketing studies or clinical trials;

warning or untitled letters;

withdrawal of the products from the market;

refusal to approve pending applications or supplements to approved applications that we submit;

recall of products;

fines, restitution or disgorgement of profits or revenues;

suspension or withdrawal of marketing approvals;

refusal to permit the import or export of our products;

product seizure;

injunctions; or

the imposition of civil or criminal penalties.

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Non-compliance  with  E.U.  and  U.K.  requirements  regarding  safety  monitoring  or  pharmacovigilance,  and  with 
requirements  related  to  the  development  of  products  for  the  pediatric  population,  can  also  result  in  significant  financial 
penalties. Similarly, failure to comply with the E.U.'s and U.K.'s requirements regarding the protection of personal information, 
which are effective as of May 25, 2018, can also lead to significant penalties and sanctions and business restrictions.

If  we,  or  our  suppliers,  third-party  contractors,  clinical  investigators  or  collaborators  are  slow  to  adapt,  or  are  unable  to 
adapt,  to  changes  in  existing  regulatory  requirements  or  adoption  of  new  regulatory  requirements  or  policies,  we  or  our 
collaborators  may  lose  marketing  approval  for  our  products  when  and  if  any  of  them  are  approved,  resulting  in  decreased 
revenue from milestones, product sales or royalties.

Our  relationships  with  customers,  healthcare  providers,  patients,  patient  organizations,  charitable  foundations  and 
third-party payors will be subject to applicable anti-kickback, fraud and abuse, anti-bribery and corruption and other 
healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, 
reputational harm and diminished profits and future earnings.

Healthcare  providers,  physicians  and  payors  play  a  primary  role  in  the  recommendation  and  prescription  of  any  product 
candidates for which we may obtain marketing approval. Increasingly, patients, patient organizations and charitable foundations 
also can influence selection of and payment for therapies. Our future arrangements with payors, healthcare providers, patient 
organizations,  charitable  foundations  and  patients  may  expose  us  to  broadly  applicable  fraud  and  abuse,  anti-bribery  and 
corruption,  and  other  healthcare  laws  and  regulations  that  may  constrain  the  business  or  financial  arrangements  and 
relationships through which we market, sell and distribute any product candidates for which we may obtain marketing approval. 
Even though we do not and will not control referrals of healthcare services or bill directly to Medicare, Medicaid or other third-
party  payors,  federal,  state  and  foreign  healthcare  laws  and  regulations  pertaining  to  fraud  and  abuse,  anti-bribery  and 
corruption, interaction with patient organizations, charitable foundations, and patients' rights are and will be applicable to our 
business.  Restrictions  under  applicable  federal,  state  and  foreign  healthcare  laws  and  regulations  may  affect  our  ability  to 
operate and expose us to areas of risk, including:

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the U.S. federal Anti-Kickback Statute, which prohibits, among other things, knowingly and willfully soliciting, 
offering,  receiving  or  providing  remuneration,  directly  or  indirectly,  in  cash  or  in  kind,  to  induce  or  reward 
either the referral of an individual for, or the purchase, order or recommendation of, any good or service, for 
which payment may be made under federal and state healthcare programs such as Medicare and Medicaid. A 
person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to 
have  committed  a  violation.  Several  other  countries,  including  the  U.K.,  have  enacted  similar  anti-kickback, 
fraud and abuse, and healthcare laws and regulations;

the  U.S.  federal  False  Claims  Act,  which  imposes  criminal  and  civil  penalties,  including  through  civil 
whistleblower  or  qui  tam  actions,  against  individuals  or  entities  for  knowingly  presenting,  or  causing  to  be 
presented, to the federal government, claims for payment that are false or fraudulent or making a false statement 
to avoid, decrease or conceal an obligation to pay money to the federal government. In addition, the government 
may  assert  that  a  claim  including  items  and  services  resulting  from  a  violation  of  the  federal  Anti-Kickback 
Statute  constitutes  a  false  or  fraudulent  claim  for  purposes  of  the  False  Claims  Act.  In  addition,  charitable 
contributions to foundations for use in supporting patients may expose those foundations and us to additional 
penalties and prosecution under the False Claims Act. There is also a separate false claims provision imposing 
criminal  penalties.  Applicable  regulations  of  both  the  EMA  and  E.U.  member  states  also  impose  liability  for 
failing  to  comply  with  fraud  and  abuse  laws  or  improperly  using  information  obtained  in  in  the  course  of 
clinical trials with the EMA or other regulatory authorities;

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The  U.S.  federal  Health  Insurance  Portability  and  Accountability  Act  of  1996  ("HIPAA")  which  imposes 
criminal  and  civil  liability  for  executing  a  scheme  to  defraud  any  healthcare  benefit  program  or  making  false 
statements relating to healthcare matters. Similar to the federal Anti-Kickback Statute, a person or entity does 
not need to have actual knowledge of the statute to defraud any healthcare benefit program or specific intent to 
violate it in order to have committed a violation. This statute also may impose monetary penalties on any offers 
or  transfers  of  remuneration  to  Medicare  or  Medicaid  beneficiaries  (patients)  which  is  likely  to  influence  the 
beneficiary's  selection  of  particular  supplier  of  government  payable  items.  States,  such  as  California  have 
enacted their own privacy regulations and others may enact similar legislation. Similarly, the collection and use 
of personal health data in the E.U. is governed by the E.U. General Data Protection Regulation (the "GDPR"), 
with many requirements mandated by the GDPR for the consent of the individuals to whom the personal data 
relates, the information provided to the individuals, transfer of personal data within and outside of the E.U. and 
the security and confidentiality of the personal data. Enforcement of the GDPR began on May 25, 2018, and 
failure to comply with the requirements of the GDPR may result in substantial fines and other administrative 
penalties. The GDPR increases our responsibility and liability in relation to personal data that we process, and 
we may be required to put in place additional mechanisms ensuring compliance with the GDPR. This may be 
onerous and adversely affect our business, financial condition, results of operations and prospects;

HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, and 
its  implementing  regulations,  which  also  imposes  obligations  on  certain  covered  entity  healthcare  providers, 
health  plans,  and  healthcare  clearinghouses  as  well  as  their  business  associates  that  perform  certain  services 
involving the use or disclosure of individually identifiable health information, including mandatory contractual 
terms,  with  respect  to  safeguarding  the  privacy,  security  and  transmission  of  individually  identifiable  health 
information;

U.S. federal laws requiring drug manufacturers to report annually information related to certain payments and 
other  transfers  of  value  made  to  physicians  (defined  to  include  doctors,  dentists,  optometrists,  podiatrists  and 
chiropractors) and teaching hospitals, as well as ownership or investment interests held by physicians and their 
immediate  family  members,  including  under  the  federal  Open  Payments  program,  commonly  known  as  the 
Sunshine  Act,  as  well  as  other  state  and  foreign  laws  regulating  marketing  activities  and  requiring 
manufacturers to report marketing expenditures, payments and other transfers of value to physicians and other 
healthcare  providers.  Similarly,  payments  made  to  physicians  in  certain  E.U.  member  states  must  be  publicly 
disclosed. Moreover, agreements with physicians often must be the subject of prior notification and approval by 
the physician's employer, his or her competent professional organization and/or the regulatory authorities of the 
individual  E.U.  member  states.  These  requirements  are  provided  in  the  national  laws,  industry  codes  or 
professional  codes  of  conduct,  applicable  in  the  E.U.  member  states.  In  addition,  the  provision  of  benefits  or 
advantages  to  physicians  to  induce  or  encourage  the  prescription,  recommendation,  endorsement,  purchase, 
supply, order or use of medicinal products is prohibited in the E.U. Failure to comply with these requirements 
could result in reputational risk, public reprimands, administrative penalties, fines or imprisonment;

U.S. federal government price reporting laws, which require us to calculate and report complex pricing metrics 
to government programs, where such reported prices may be used in the calculation of reimbursement and/or 
discounts  on  our  marketed  drugs.  Participation  in  these  programs  and  compliance  with  the  applicable 
requirements may subject us to potentially significant discounts on our products, increased infrastructure costs, 
potential liability for the failure to report such prices in an accurate and timely manner, and potentially limit our 
ability to offer certain marketplace discounts;

U.S.  Foreign  Corrupt  Practices  Act,  which  prohibit  us  and  third  parties  working  on  our  behalf  from  making 
payments  to  foreign  government  officials  to  assist  in  obtaining  or  retaining  business.  Specifically,  the  anti-
bribery provisions of the FCPA prohibit the willful use of the mails or any means of instrumentality of interstate 
commerce corruptly in furtherance of any offer, payment, promise to pay, or authorization of the payment of 
money or anything of value to any person, while knowing that all or a portion of such money or thing of value 
will be offered, given or promised, directly or indirectly, to a foreign official to influence the foreign official in 
his or her official capacity, induce the foreign official to do or omit to do an act in violation of his or her lawful 
duty, or to secure any improper advantage in order to assist in obtaining or retaining business for or with, or 
directing business to, any person; and

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state and foreign equivalents of each of the above laws, including foreign anti-bribery and corruption laws and 
state  anti-kickback  and  false  claims  laws,  which  may  apply  to  sales  or  marketing  arrangements  and  claims 
involving healthcare items or services reimbursed by non-governmental payors, including private insurers; state 
laws  which  require  pharmaceutical  companies  to  comply  with  the  pharmaceutical  industry's  voluntary 
compliance  guidelines  and  the  relevant  compliance  guidance  promulgated  by  the  federal  government  or 
otherwise restricting payments that may be made to healthcare providers; and state and foreign laws governing 
the privacy and security of health information in certain circumstances, many of which differ from each other in 
significant ways and often are not preempted by HIPAA, thus complicating compliance efforts.

While we do not submit claims and our customers will make the ultimate decision on how to submit claims, in the U.S. we 
may provide reimbursement guidance and support regarding Galafold®, and our other product candidates for which we receive 
regulatory  approval,  to  our  customers  and  patients.  If  a  government  authority  were  to  conclude  that  we  provided  improper 
advice to our customers and patients and/or encouraged the submission of false claims for reimbursement, we could face action 
by government authorities. Similarly, if a government authority were to conclude that our patient support efforts or interactions 
with charitable foundations were improper, we could face action by government authorities. Efforts to ensure that our business 
arrangements  with  third  parties  will  comply  with  applicable  healthcare  laws  and  regulations  will  involve  substantial  costs. 
Nonetheless, it is possible that governmental authorities will conclude that our business practices may not comply with current 
or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our 
operations 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,  such  as  Medicare  and  Medicaid,  and  the  curtailment  or  restructuring  of  our 
operations.

If clinical trials of our product candidates fail to demonstrate safety and efficacy to the satisfaction of the FDA, EMA, 
PMDA  or  other  foreign  regulatory  authorities,  or  do  not  otherwise  produce  favorable  results,  we  may  experience 
delays  in  completing,  or  ultimately  be  unable  to  complete,  the  development  and  commercialization  of  our  product 
candidates.

In connection with seeking marketing approval from regulatory authorities for the sale of any product candidate, we must 
complete  preclinical  development  and  then  conduct  extensive  clinical  trials  to  demonstrate  the  safety  and  efficacy  of  our 
product candidates in humans. Clinical testing is expensive, difficult to design and implement, can take many years to complete, 
and  is  uncertain  as  to  outcome.  A  failure  of  one  or  more  clinical  trials  can  occur  at  any  stage  of  testing.  The  outcome  of 
preclinical testing and early clinical trials may not be predictive of the success of later clinical trials, and interim results of a 
clinical  trial  do  not  necessarily  predict  final  results.  Moreover,  preclinical  and  clinical  data  are  often  susceptible  to  varying 
interpretations  and  analyses,  and  many  companies  that  have  believed  their  product  candidates  performed  satisfactorily  in 
preclinical studies and clinical trials have nonetheless failed to obtain marketing approval of their products. This is particularly 
the case with AT-GAA, as there can be no assurance that the Phase 3 PROPEL study results will meet regulatory standards for 
approval.

In addition, the regulatory pathways for gene therapies are evolving. In some cases, the FDA will approve gene therapies 
based on Phase 2 clinical trial data. If, however, the FDA decides we need to complete Phase 3 clinical trial(s), we may need to 
expend significantly more capital to pursue FDA approval of gene therapies. If we are required to conduct additional clinical 
trials or other testing of our product candidates, including AT-GAA, CLN6, CLN3 and other gene therapies, that we develop 
beyond those tests and trials that we contemplate; if we are unable to successfully complete our clinical trials or other testing; if 
the results of these trials or tests are not positive or are only modestly positive; or if there are safety concerns, we may:

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choose not to seek regulatory approval in the U.S., E.U., U.K. or other key jurisdictions;

be delayed in obtaining marketing approval for our product candidates;

not obtain marketing approval at all;

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  or  safety  warnings, 
including boxed warnings;

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be  subject  to  additional  post-marketing  testing  requirements,  safety  strategies  or  restrictions,  such  as  a 
requirement of a risk evaluation and mitigation strategy, or REMS; or

have the product removed from the market after obtaining regulatory approval.

If  we  experience  any  of  a  number  of  possible  unforeseen  events  in  connection  with  our  clinical  trials,  potential 
regulatory approval or commercialization of our product candidates could be delayed or prevented.

We may experience numerous unforeseen events during, or as a result of, clinical trials including ongoing clinical trials of 
AT-GAA, CLN6 and CLN3 that could delay or prevent our ability to receive regulatory approval or commercialize our product 
candidates, including:

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clinical trials of our product candidates may produce negative or inconclusive results, and we may decide, or 
regulators may require us, to conduct additional clinical trials or abandon product development programs;

the number of patients required for clinical trials of our product candidates may be larger than we anticipate, 
enrollment in these clinical trials may be slower than we anticipate, or patients may drop out of these clinical 
trials at a higher rate than we anticipate;

we may be unable to enroll a sufficient number of patients in our trials to ensure adequate statistical power to 
detect any statistically significant treatment effects;

our third-party contractors may fail to comply with regulatory requirements or meet their contractual obligations 
to us in a timely manner, or at all;

regulators,  institutional  review  boards,  or  independent  ethics  committees  may  not  authorize  us  or  our 
investigators to commence a clinical trial or conduct a clinical trial at a prospective trial site;

we may have delays in reaching or fail to reach agreement on acceptable clinical trial contracts or clinical trial 
protocols with prospective trial sites;

we may have to suspend or terminate clinical trials of our product candidates for various reasons, including a 
finding that the participants are being exposed to unacceptable health risks;

regulators,  institutional  review  boards,  or  independent  ethics  committees  may  require  that  we  or  our 
investigators  suspend  or  terminate  clinical  research  for  various  reasons,  including  noncompliance  with 
regulatory requirements or a finding that the participants are being exposed to unacceptable health risks;

the cost of clinical trials of our product candidates may be greater than we anticipate;

the  supply  or  quality  of  our  product  candidates  or  other  materials  necessary  to  conduct  clinical  trials  of  our 
product candidates may be insufficient or inadequate; or

our product candidates may have undesirable side effects or other unexpected characteristics, causing us or our 
investigators, regulators, institutional review boards or independent ethics committees to suspend or terminate 
the trials.

Our product development costs will increase if we experience delays in testing or regulatory approvals. We do not know 
whether  any  preclinical  tests  or  clinical  trials  will  begin  as  planned,  will  need  to  be  restructured  or  will  be  completed  on 
schedule, or at all. Significant preclinical study or clinical trial delays also could shorten any periods during which we may have 
the exclusive right to commercialize our product candidates, allow our competitors to bring products to market before we do, or 
impair  our  ability  to  successfully  commercialize  our  product  candidates,  and  so  may  harm  our  business  and  results  of 
operations.

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If  we  experience  delays  or  difficulties  in  the  enrollment  of  patients  in  our  clinical  trials,  our  receipt  of  necessary 
regulatory approvals could be delayed or prevented.

We may not be able to initiate or continue clinical trials for our product candidates if we are unable to locate and enroll a 
sufficient  number  of  eligible  patients  to  participate  in  these  trials.  Each  of  the  diseases  that  our  lead  product  candidates  are 
intended  to  treat  are  characterized  by  small  patient  populations,  which  could  result  in  slow  enrollment  of  clinical  trial 
participants. In addition, our competitors have ongoing clinical trials for product candidates that could be competitive with our 
product candidates. As a result, potential clinical trial sites may elect to dedicate their limited resources to participation in our 
competitors' clinical trials and not ours, and patients who would otherwise be eligible for our clinical trials may instead enroll in 
clinical trials of our competitors' product candidates.

Patient enrollment is affected by other factors including:

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severity of the disease under investigation;

eligibility criteria for the clinical trial in question;

perceived risks and benefits of the product candidate under study;

efforts to facilitate timely enrollment in clinical trials;

patient referral practices of physicians;

the ability to monitor patients adequately during and after treatment; and

proximity and availability of clinical trial sites for prospective patients.

Enrollment delays in our clinical trials may result in increased development costs for our product candidates, which would 
cause the value of the Company to decline and limit our ability to obtain additional financing. Our inability to enroll a sufficient 
number  of  patients  in  any  of  our  clinical  trials  would  result  in  significant  delays  or  may  require  us  to  abandon  one  or  more 
clinical trials altogether.

Initial results from a clinical trial do not ensure that the trial will be successful and success in preclinical or early 
stage clinical trials does not ensure success in later-stage clinical trials.

We will only obtain regulatory approval to commercialize a product candidate if we can demonstrate to the satisfaction of 
the  FDA  or  the  applicable  non-U.S.  regulatory  authority,  in  well-designed  and  conducted  clinical  trials,  that  the  product 
candidate is safe and effective and otherwise meets the appropriate standards required for approval for a particular indication. 
Clinical trials are lengthy, complex and extremely expensive processes with uncertain duration and results. A failure of one or 
more of our clinical trials may occur at any stage of testing.

Success in preclinical testing and early clinical trials does not ensure that later clinical trials will be successful. Our product 
candidates  may  fail  to  show  the  desired  safety  and  efficacy  in  clinical  development  despite  demonstrating  positive  results  in 
preclinical studies or having successfully advanced through initial clinical trials or preliminary stages of clinical trials. For some 
of  our  product  candidates,  we  have  no  safety  or  efficacy  data  in  humans.  There  can  be  no  assurance  that  the  results  seen  in 
preclinical  studies  for  any  product  candidates,  including  CLN6  and  CLN3  will  result  in  success  in  clinical  trials.  When 
administered  in  humans,  the  product  candidates  may  perform  differently  than  in  preclinical  studies.  Product  candidates  may 
demonstrate different chemical and pharmacological properties in patients than they do in laboratory studies or animal studies, 
and  may  interact  with  human  biological  systems  in  unforeseen,  ineffective  or  harmful  ways.  We  may  be  unable  to  generate 
sufficient preclinical, toxicology, or other in vivo or in vitro data to support the initiation or continuation of clinical trials.

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Initial  results  from  a  clinical  trial  do  not  necessarily  predict  final  results.  We  cannot  be  assured  that  these  trials  will 
ultimately be successful. In addition, patients may not be compliant with their dosing regimen or trial protocols or they may 
withdraw from the clinical trial at any time for any reason. For example, we have reported data from a Phase 1/2 clinical trial of 
AT-GAA in Pompe disease. The data is based on a small patient sample and therefore may not be predictive of future results. 
The Phase 3 PROPEL study results may not support further development, or we may not be able to successfully complete the 
development of, obtain accelerated, conditional or standard regulatory approval for, or successfully commercialize AT-GAA. 
Similarly, we recently reported preliminary results from initial patients in the CLN-3 trial. Results from these initial patients 
may not be predictive of results of the full data set, we may not be able to demonstrate safety and efficacy and the FDA, EMA 
and other regulatory authorities may not accept this data as sufficient for approval. In addition, while the clinical trials of our 
product  candidates  are  designed  based  on  the  available  relevant  information,  in  view  of  the  uncertainties  inherent  in  drug 
development, such clinical trials may not be designed with focus on indications, patient populations, dosing regimens, safety or 
efficacy parameters or other variables that will provide the necessary safety or efficacy data to support regulatory approval to 
commercialize the resulting product candidates. This is particularly the case for emerging gene therapies where we do not yet 
have  a  defined  regulatory  pathway  and  there  can  be  no  assurance  that  regulators  in  the  U.S.,  E.U.,  U.K.,  Japan  or  other 
jurisdictions will accept the existing CLN-6, CLN-3 or other gene therapy clinical data sets for approval and without additional 
clinical trials or that future trials will support approvals. In addition, individual patient responses to the dose administered of a 
product candidate may vary in a manner that is difficult to predict. Also, the methods we select to assess particular safety or 
efficacy parameters may not yield statistical precision in estimating our product candidates' effects on study participants. Even 
if we believe the data collected from clinical trials of our product candidates are promising, these data may not be sufficient to 
support approval by the FDA or foreign regulatory authorities. Preclinical and clinical data can be interpreted in different ways. 
Accordingly,  the  FDA  or  foreign  regulatory  authorities  could  interpret  these  data  in  different  ways  from  us  or  our  partners, 
which could delay, limit or prevent regulatory approval.

In addition, certain of our product candidates are based on gene therapy technology. The product candidates in our gene 
therapy program are being developed for the treatment of diseases in which there is little clinical experience, which increases 
the  difficulty  in  selecting  appropriate  endpoints  and  the  risk  that  regulatory  authorities  may  not  consider  the  endpoints  of 
clinical trials to provide clinically meaningful results. As a result, if the FDA requires different endpoints than the endpoints we 
anticipate using or have used in our clinical trials, or a different analysis of those endpoints, it may be more difficult for us to 
obtain,  or  we  may  be  delayed  in  obtaining,  FDA  approval  of  our  product  candidates.  If  we  are  not  successful  in 
commercializing  any  of  our  products  or  product  candidates,  or  are  significantly  delayed  in  doing  so,  our  business  will  be 
materially harmed.

We  may  not  be  able  to  obtain  or  maintain  orphan  drug  exclusivity  for  our  product  or  product  candidates.  If  our 
competitors  are  able  to  obtain  orphan  drug  exclusivity  for  their  products,  we  may  not  be  able  to  have  competing 
products approved by the applicable regulatory authority for a significant period of time.

Regulatory  authorities  in  some  jurisdictions,  including  the  E.U.,  U.K.,  and  the  U.S.,  may  designate  drugs  for  relatively 
small patient populations as orphan drugs. We obtained orphan drug designations from the FDA for Galafold® for the treatment 
of Fabry disease in February 2004. We also obtained orphan medicinal product designation in the E.U. and U.K. for Galafold® 
in May 2006. AT-GAA has also received this designation from the FDA, EMA, and, in 2020, from PMDA. Our competitors 
have also received orphan designation. Generally, if a product with an orphan drug designation subsequently receives the first 
marketing approval for the indication for which it has such designation, the product is entitled to a period of market exclusivity, 
which, subject to certain exceptions, precludes the EMA from approving another marketing application for a similar medicinal 
product  or  the  FDA  from  approving  another  marketing  application  for  the  same  drug  for  the  same  indication  for  that  time 
period. The FDA defines “same drug” as a drug or biologic that contains the same active moiety and is intended for the same 
use. The applicable market exclusivity period for orphan drugs is ten years in the E.U. and U.K. and seven years in the U.S. The 
E.U. and U.K. exclusivity period can be reduced to six years if a drug no longer meets the criteria for orphan drug designation, 
including if the drug is sufficiently profitable so that market exclusivity is no longer justified.

In  the  E.U.  and  U.K.,  a  "similar  medicinal  product"  is  a  medicinal  product  containing  a  similar  active  substance  or 
substances  as  contained  in  a  currently  authorized  orphan  medicinal  product,  and  which  is  intended  for  the  same  therapeutic 
indication. Obtaining orphan drug exclusivity for our product candidates, in the E.U., U.K. and U.S., may be important to the 
product candidate's success. If a competitor to AT-GAA or our other product candidates obtains orphan drug exclusivity for and 
approval of a product with the same indications as our product candidates as before we do and if the competitor's product is the 
same drug or a similar medicinal product as ours, we could be excluded from the market for a certain period of time.

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Even if we obtain orphan drug exclusivity for other product candidates in these indications, we may not be able to maintain 
it.  For  example,  if  a  competitive  product  that  is  the  same  drug  or  a  similar  medicinal  product  as  our  product  or  product 
candidate is shown to be clinically superior to our product or product candidate, as applicable, any orphan drug exclusivity we 
have obtained will not block the approval of such competitive product. In addition, orphan drug exclusivity will not prevent the 
approval  of  a  product  that  is  the  same  drug  as  our  product  or  product  candidate  if  the  FDA  finds  that  we  cannot  assure  the 
availability of sufficient quantities of the drug to meet the needs of the persons with the disease or condition for which the drug 
was designated.

The  FDA  Reauthorization  Act,  signed  into  law  in  August  2017,  authorizes  the  FDA  to  impose  additional  clinical  trial 
requirements  on  manufacturers  seeking  orphan  drug  designation  and/or  pediatric  indications.  Galafold®  and  AT-GAA  have 
obtained  orphan  drug  designations  from  the  FDA.  The  impact,  however,  of  future  regulations  on  other  product  candidates  is 
uncertain and could result in the need for additional clinical trials.

Failure  to  obtain  or  maintain  regulatory  approval  in  foreign  jurisdictions  would  prevent  us  from  marketing  our 
products abroad.

In  order  to  market  and  sell  our  products  in  Europe  and  many  other  jurisdictions,  we  must  obtain  separate  marketing 
approvals and comply with numerous and varying regulatory requirements. The approval procedure varies among countries and 
can involve additional testing. The time required to obtain approval may differ from that required to obtain FDA approval. The 
regulatory  approval  process  outside  the  U.S.  generally  includes  all  of  the  risks  associated  with  obtaining  FDA  approval.  In 
addition,  some  countries  outside  the  U.S.  require  approval  of  the  sales  price  of  a  drug  before  it  can  be  marketed.  In  many 
countries,  separate  procedures  must  be  followed  to  obtain  reimbursement.  We  may  not  obtain  marketing,  pricing  or 
reimbursement  approvals  outside  the  U.S.  on  a  timely  basis,  if  at  all.  Approval  by  the  FDA  does  not  ensure  approval  by 
regulatory  authorities  in  other  countries  or  jurisdictions,  and  approval  by  one  regulatory  authority  outside  the  U.S.  does  not 
ensure  approval  by  regulatory  authorities  in  other  countries  or  jurisdictions  or  by  the  FDA.  We  may  not  be  able  to  file  for 
marketing  approvals  and  may  not  receive  necessary  approvals  to  commercialize  our  products  in  any  market.  Regulatory 
approvals  in  countries  outside  the  U.S.  do  not  ensure  pricing  approvals  in  those  countries  or  in  any  other  countries,  and 
regulatory approvals and pricing approvals do not ensure that reimbursement will be obtained.

Our  business  activities  involve  the  use  of  hazardous  materials,  which  require  compliance  with  environmental  and 
occupational  safety  laws  regulating  the  use  of  such  materials.  If  we  violate  these  laws,  we  could  be  subject  to 
significant fines, liabilities or other adverse consequences.

Our  research  and  development  programs  involve  the  controlled  use  of  hazardous  materials,  including  microbial  agents, 
corrosive,  explosive  and  flammable  chemicals  and  other  hazardous  compounds  in  addition  to  certain  biological  hazardous 
waste. Additionally, the activities of our third-party product manufacturers of our product, and of our product candidates if and 
when  they  reach  commercialization,  will  also  require  the  use  of  hazardous  materials.  Accordingly,  we  are  subject  to  federal, 
state and local laws governing the use, handling and disposal of these materials. Although we believe that our safety procedures 
for handling and disposing of these materials comply in all material respects with the standards prescribed by local, state and 
federal  regulations,  we  cannot  completely  eliminate  the  risk  of  accidental  contamination  or  injury  from  these  materials.  In 
addition,  although  our  collaborators  have  environmental  compliance  processes  in  place,  and  we  include  oversight  of  these 
processes  in  our  business  reviews,  they  may  not  ultimately  comply  with  these  laws.  In  the  event  of  an  accident  or  failure  to 
comply with environmental laws, we could be held liable for damages that result, and any such liability could exceed our assets 
and  resources  or  we  could  be  subject  to  limitations  or  stoppages  related  to  our  use  of  these  materials  which  may  lead  to  an 
interruption  of  our  business  operations  or  those  of  our  third-party  contractors.  While  we  believe  that  our  existing  insurance 
coverage is generally adequate for our normal handling of these hazardous materials, it may not be sufficient to cover pollution 
conditions or other extraordinary or unanticipated events. Furthermore, an accident could damage or force us to shut down our 
operations. Changes in environmental laws may impose costly compliance requirements on us or otherwise subject us to future 
liabilities and additional laws relating to the management, handling, generation, manufacture, transportation, storage, use and 
disposal of materials used in or generated by the manufacture of our products or related to our clinical trials. In addition, we 
cannot predict the effect that these potential requirements may have on us, our suppliers and contractors or our customers.

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If  we  are  unable  to  obtain  marketing  approval  for  AT-GAA,  or  if  it  is  approved  and  the  label  does  not  support 
reimbursement and we are unable to successfully commercialize AT-GAA, our business could be materially harmed.

In February 2021, we announced topline data results from the AT-GAA Phase 3 Propel Study and our intention to both 
complete the rolling BLA submission to the FDA and seek additional approvals worldwide. While we believe the results of the 
trial will permit successful regulatory submissions, and labels to support broad use and favorable pricing and reimbursement, 
there is no guarantee that the FDA or any other regulatory authority will accept our filings, or if accepted, subsequently grant 
AT-GAA marketing approval, or if approved will receive favorable pricing or reimbursement.

Securing marketing approval requires the submission of extensive preclinical and clinical data and supporting information 
to  regulatory  authorities  for  each  therapeutic  indication  to  establish  the  product  candidate's  safety  and  efficacy.  Regulatory 
authorities may determine that AT-GAA is not effective or only moderately effective, or have undesirable or unintended side 
effects, toxicities, safety profiles or other characteristics that preclude us from obtaining marketing approval or that prevent or 
limit commercial use. If AT-GAA fails to receive marketing approval, is significantly delayed in receiving marketing approval 
or if the approved labeling is not as expected, AT-GAA may fail to receive market acceptance, receive reimbursement or be 
able to generate material revenue, any of which could substantially harm our future business. 

Risks Related to our Preclinical Product Candidates

Our gene therapy product candidates are based on novel technologies, which makes it difficult to predict the time and 
cost of product candidate development and subsequently obtaining regulatory approval.

Only a few gene therapy products have been approved in the U.S., E.U., and U.K. We have acquired the rights to many 
potential  gene  therapies  and  are  focusing  a  substantial  effort  in  our  research  and  development  efforts  on  these  gene  therapy 
platforms,  and  our  future  success  depends  on  the  successful  development  of  these  therapeutic  approaches.  There  can  be  no 
assurance that any development problems we experience in the future related to our gene therapies will not cause significant 
delays or unanticipated costs, or that such development problems can be solved. In addition, the clinical study requirements of 
the FDA, the EMA, and other regulatory agencies and the criteria these regulators use to determine the safety and efficacy of a 
product  candidate  vary  substantially  according  to  the  type,  complexity,  novelty  and  intended  use  and  market  of  the  potential 
products. The regulatory approval process for novel product candidates such as our gene therapies can be more expensive and 
take longer than for other, better known or more extensively studied pharmaceutical or other product candidates. The number of 
gene therapy products approved in the Western world is rapidly increasing. Approved products include Spark’s gene therapy 
product, which received approval from the FDA in 2017, GlaxoSmithKline’s Strimvelis, and Novartis’s and Gilead’s CAR-T 
therapies, which received approval from the FDA in 2017, Avexis’s Zolgemsa which received FDA approval in 2019, Bluebird 
Bio’s  Zynteglo  which  received  E.U.  and  U.K.  approval  in  2019,  and  Juno  Therapeutic's  CAR-T  therapy,  Breyanzi,  which 
received approval in 2021. Given the few precedents of approved gene therapy products, it is difficult to determine how long it 
will take or how much it will cost to obtain regulatory approvals for our product candidates in the U.S., the E.U., the U.K. or 
other jurisdictions. Approvals by the EMA and the European Commission may not be indicative of what the FDA may require 
for approval. Regulatory requirements governing gene and cell therapy products have evolved and may continue to change in 
the  future.  For  example,  the  FDA  has  established  the  Office  of  Cellular,  Tissue  and  Gene  Therapies  within  its  Center  for 
Biologics Evaluation and Research, or CBER, to consolidate the review of gene therapy and related products, and the Cellular, 
Tissue and Gene Therapies Advisory Committee to advise CBER on its review. In addition, the FDA can put an investigational 
new drug application, or IND, on clinical hold if the information in an IND is not sufficient to assess the risks in patients or a 
safety  issue  emerges  in  preclinical  or  clinical  studies.  Before  a  clinical  study  can  begin  at  any  institution,  that  institution’s 
institutional review board, or IRB, and its Institutional Biosafety Committee will have to review the proposed clinical study to 
assess  the  safety  of  the  study.  Moreover,  serious  adverse  events  or  developments  in  clinical  trials  of  gene  therapy  product 
candidates conducted by others may cause the FDA or other regulatory bodies to initiate a clinical hold on our clinical trials or 
otherwise change the requirements for approval of any of our product candidates. These regulatory review agencies, committees 
and  advisory  groups  and  the  new  requirements  and  guidelines  they  promulgate  may  lengthen  the  regulatory  review  process, 
require us to perform additional or larger studies, increase our development costs, lead to changes in regulatory positions and 
interpretations,  delay  or  prevent  approval  and  commercialization  of  these  treatment  candidates  or  lead  to  significant  post-
approval studies, limitations or restrictions. As we advance our product candidates, we will be required to consult with these 
regulatory and advisory groups and comply with applicable requirements and guidelines. If we fail to do so, we may be required 
to delay or discontinue development of our product candidates. Delay or failure to obtain, or unexpected costs in obtaining, the 
regulatory approval necessary to bring a potential product to market could decrease our ability to generate sufficient product 
revenue to maintain our business.

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Risks Related to the Manufacture of our Product and Product Candidates and our Dependence on Third Parties

We may encounter difficulties manufacturing our gene therapy which could impact timing and availability of clinical 
and commercial supply.

We  may  experience  delays  in  developing  a  sustainable,  reproducible  and  commercial-scale  manufacturing  process  or 
transferring  that  process  to  commercial  partners  for  our  gene  therapy  product  candidates.  There  is  intense  competition  for 
limited  commercial  manufacturing  capacity  in  gene  therapy  and  for  base  materials,  such  as  plasmids,  necessary  to  the 
manufacturing  of  gene  therapy  products.  We  do  not  currently  have  our  own  gene  therapy  manufacturing  capacity  and  rely 
instead on commercial manufacturing partners. These commercial manufacturing partners are expanding rapidly and there can 
be no assurance that needed capacity will be available or that these partners will continue to meet evolving regulatory standards. 
Any  delay  in  securing  supply  of  these  materials  and  the  manufacturing  slots  with  commercial  partners  may  prevent  us  from 
completing our clinical studies or commercializing our products on a timely or profitable basis, if at all. In addition, FDA and 
other  regulatory  bodies  are  continuing  to  evolve  their  guidance  for  gene  therapy  manufacturing  and  could  impose  rigorous 
requirements relating to the manufacturing and testing of clinical and commercial products that could add time, complexity and 
the risk that we or our manufacturing partners will be unable to meet these requirements.

Use  of  third  parties  to  manufacture  our  product  or  product  candidates  may  increase  the  risk  that  we  will  not  have 
sufficient quantities of our product or product candidates or such quantities at an acceptable cost, which could delay, 
prevent or impair our development or commercialization efforts.

We  do  not  currently  own  or  operate  manufacturing  facilities  for  clinical  or  commercial  production  of  our  product  or 
product candidates. We currently lack the resources and the capabilities to manufacture ourselves any of our product or product 
candidates on a clinical or commercial scale. If we choose in the future to manufacture ourselves, we would face all of the risks 
and uncertainties of third-party manufacture of our products. We currently outsource all manufacturing and packaging of our 
product and preclinical and clinical product candidates to third parties. The manufacture of pharmaceutical and gene therapy 
products  requires  significant  expertise  and  capital  investment,  including  the  development  of  advanced  manufacturing 
techniques and process controls. In particular, the manufacture of our biologic product candidate ATB200 for Pompe, is highly 
complex and we may encounter difficulties in production. These problems include difficulties with production costs and yields 
and  quality  control,  including  stability  of  the  product  or  product  candidate.  Further,  our  gene  therapies  may  require  new  or 
specialized manufacturing with limited third-party manufacturers available to provide these services. The occurrence of any of 
these problems could significantly delay our clinical trials or the commercial availability of our product or product candidates.

We may be unable to enter into agreements for commercial supply with third-party manufacturers or may be unable 
to do so on acceptable terms. Even if we enter into these agreements, the manufacturers of each product candidate 
will be single source suppliers to us for a significant period of time.

Even  if  we  are  able  to  establish  and  maintain  arrangements  with  third-party  manufacturers,  reliance  on  third-party 

manufacturers entails additional risks, including:

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reliance on the third party for regulatory compliance and quality assurance;

limitations on supply availability resulting from capacity and scheduling constraints of the third parties;

inability to manufacture product that meets the regulatory requirements for product approval;

inability to manufacture batches that meet specifications and quality standards; 

inability to hire and retain the skilled workers necessary to manufacture our products;

impact on our reputation in the marketplace if manufacturers of our products, once commercialized, fail to meet 
the demands of our customers;

the possible breach of the manufacturing agreement by the third party;

the possible misappropriation of our proprietary information, including our trade secrets and know-how; and 

the  possible  termination  or  nonrenewal  of  the  agreement  by  the  third  party  at  a  time  that  is  costly  or 
inconvenient for us. 

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The failure of any of our contract manufacturers to maintain high manufacturing standards could result in injury or death of 
clinical trial participants or patients using products. Such failure could also result in product liability claims, product recalls, 
product seizures or withdrawals, delays or failures in testing or delivery, cost overruns or other problems that could seriously 
harm our business or profitability.

The  FDA  and  regulatory  authorities  in  other  jurisdictions  require  our  contract  manufacturers  to  comply  with  cGMP 
regulations. These regulations cover all aspects of the manufacturing, testing, quality control and recordkeeping relating to our 
product candidates and any products that we may commercialize, including Galafold®,AT-GAA, and our gene therapy product 
candidates.

Our manufacturers may not be able to comply with cGMP regulations or similar regulatory requirements outside the U.S. 
Our  failure  or  the  failure  of  our  third-party  manufacturers,  to  comply  with  applicable  regulations  could  significantly  and 
adversely affect regulatory approval and supplies of our product candidates. Our product candidates and any products that we 
may develop may compete with other product candidates and products for access to manufacturing facilities. There are a limited 
number of manufacturers that operate under cGMP regulations and that might be capable of manufacturing our products.

If  the  third  parties  that  we  engage  to  manufacture  product  for  our  preclinical  tests  and  clinical  trials  should  cease  to 
continue  to  do  so  for  any  reason,  we  likely  would  experience  delays  in  advancing  these  trials  while  we  identify  and  qualify 
replacement suppliers and we may be unable to obtain replacement supplies on terms that are favorable to us. In addition, if we 
are not able to obtain adequate supplies of our product candidates or the drug substances used to manufacture them, it will be 
more difficult for us to develop our product candidates and compete effectively.

Our current and anticipated future dependence upon others for the manufacture of our product candidates may adversely 
affect  our  future  profit  margins  and  our  ability  to  develop  product  candidates  and  commercialize  any  products  that  receive 
regulatory approval on a timely and competitive basis.

We rely on third parties to conduct certain preclinical development activities and our clinical trials, and those third 
parties may not perform satisfactorily, including failing to meet deadlines for the completion of such trials.

We do not independently conduct clinical trials for our product candidates or certain preclinical development activities of 
our product candidates. We rely on third parties, such as CROs, clinical data management organizations, medical institutions 
and clinical investigators and collaboration partners, to perform these functions. Any of these third parties may terminate their 
engagements with us at any time. If we need to enter into alternative arrangements, it would delay our product development 
activities.

Our reliance on these third parties for certain preclinical and clinical development activities reduces our control over these 
activities  but  does  not  relieve  us  of  our  responsibilities.  For  example,  we  remain  responsible  for  ensuring  that  each  of  our 
clinical trials is conducted in accordance with the general investigational plan and protocols for the trial. Moreover, the FDA 
requires us to comply with standards, commonly referred to as Good Clinical Practices, or GCP, 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. We also are required to register certain ongoing clinical trials and 
post  the  results  of  completed  clinical  trials  on  a  government-sponsored  database,  ClinicalTrials.gov,  within  particular 
timeframes.  Failure  to  do  so  can  result  in  fines,  adverse  publicity  and  civil  and  criminal  sanctions.  Similar  GCP  and 
transparency  requirements  apply  in  the  E.U.  and  U.K.  Failure  to  comply  with  such  requirements,  including  with  respect  to 
clinical  trials  conducted  outside  the  E.U.,  U.K.  and  U.S.,  can  also  lead  regulatory  authorities  to  refuse  to  take  into  account 
clinical trial data submitted as part of an MAA.

Furthermore,  third  parties  that  we  rely  on  for  our  clinical  development  activities  may  also  have  relationships  with  other 
entities, some of which may be our competitors. If these third parties do not successfully carry out their contractual duties, meet 
expected deadlines or conduct our clinical trials in accordance with regulatory requirements or our stated protocols, we will not 
be able to obtain, or may be delayed in obtaining, marketing approvals for our product candidates and will not be able to, or 
may  be  delayed  in  our  efforts  to,  successfully  commercialize  our  product  candidates.  Our  product  development  costs  will 
increase if we experience delays in testing or obtaining marketing approvals.

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We also rely on other third parties to obtain, store and distribute drug supplies for our preclinical development activities 
and clinical trials. In addition, in some instances we are required to purchase clinical supplies from our competitors, who may 
refuse to allow this purchase or do so at prohibitively high prices. Any performance failure on the part of our distributors or 
inability to secure supply from our competitors could delay preclinical and clinical development or marketing approval of our 
product  candidates  or  commercialization  of  our  products,  producing  additional  losses  and  depriving  us  of  potential  product 
revenue.

Extensions, delays, suspensions or terminations of our preclinical development activities or our clinical trials as a result of 
the performance of our independent clinical investigators and CROs will delay, and make more costly, regulatory approval for 
any  product  candidates  that  we  may  develop.  Any  change  in  a  CRO  during  an  ongoing  preclinical  development  activity  or 
clinical trial could seriously delay that trial and potentially compromise the results of the activity or trial.

We may not be successful in maintaining or establishing collaborations, which could adversely affect our ability to 
develop and, particularly in international markets, commercialize products.

We  are  collaborating  with  physicians,  academic  institutions,  hospitals,  patient  advocacy  groups,  foundations  and 
government agencies in order to assist with the development of our products and each of our product candidates. We plan to 
pursue similar activities in future programs and plan to evaluate the merits of retaining commercialization rights for ourselves 
or entering into selective collaboration arrangements with leading pharmaceutical or biotechnology companies. We also may 
seek to establish collaborations for the sales, marketing and distribution of our products in all or select geographies. If we elect 
to  seek  collaborators  in  the  future  but  are  unable  to  reach  agreements  with  suitable  collaborators,  we  may  fail  to  meet  our 
business objectives for the affected product or program. We face, and will continue to face, significant competition in seeking 
appropriate collaborators. Moreover, collaboration arrangements are complex and time consuming to negotiate, document and 
implement.  We  may  not  be  successful  in  our  efforts,  if  any,  to  establish  and  implement  collaborations  or  other  alternative 
arrangements. The terms of any collaboration or other arrangements that we establish, if any, may not be favorable to us.

Any  collaboration  that  we  enter  into  may  not  be  successful.  The  success  of  our  collaboration  arrangements,  if  any,  will 
depend heavily on the efforts and activities of our collaborators. It is likely that any collaborators of ours will have significant 
discretion in determining the efforts and resources that they will apply to these collaborations. The risks that we may be subject 
to in possible future collaborations include the following:

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

collaborators may not pursue development and commercialization of our product or 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 
diverts resources or creates 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  independently  develop,  or  develop  with  third  parties,  products  that  compete  directly  or 
indirectly  with  our  products  or  product  candidates  if  the  collaborators  believe  that  competitive  products  are 
more  likely  to  be  successfully  developed  or  can  be  commercialized  under  terms  that  are  more  economically 
attractive than ours;

a  collaborator  with  marketing  and  distribution  rights  to  one  or  more  products  may  not  commit  sufficient 
resources to the marketing and distribution of such product or products;

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

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

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disputes may arise between the collaborator and us as to the ownership of intellectual property arising during 
the collaboration;

we may grant exclusive rights to our collaborators, which would prevent us from collaborating with others;

disputes  may  arise  between  the  collaborators  and  us  that  result  in  the  delay  or  termination  of  the  research, 
development  or  commercialization  of  our  products  or  product  candidates  or  that  result  in  costly  litigation  or 
arbitration that diverts management attention and resources; and

collaborations may be terminated and, if terminated, may result in a need for additional capital to pursue further 
development or commercialization of the applicable product candidates.

Collaboration agreements may not lead to development or commercialization of product candidates in the most efficient 
manner or at all. If a collaborator of ours were to be involved in a business combination, the continued pursuit and emphasis on 
our product development or commercialization program could be delayed, diminished or terminated.

Collaborations with pharmaceutical companies and other third parties often are terminated or allowed to expire by the other 
party. Such terminations or expirations may adversely affect us financially and could harm our business reputation in the event 
we elect to pursue collaborations that ultimately expire or are terminated.

Materials  necessary  to  manufacture  our  product  or  product  candidates  may  not  be  available  on  commercially 
reasonable  terms,  or  at  all,  which  may  delay  the  development  and  commercialization  of  our  product  or  product 
candidates.

We currently rely on the manufacturers of our product and product candidates to purchase from third-party suppliers the 
materials necessary to produce the compounds for our preclinical studies and clinical trials, and we rely, or will rely, on these 
other manufacturers for commercial distribution of our product and, if we obtain marketing approval, for any of our product 
candidates. Suppliers may not sell these materials to our manufacturers at the time we need them or on commercially reasonable 
terms  and  all  such  prices  are  susceptible  to  fluctuations  in  price  and  availability  due  to  transportation  costs,  government 
regulations, price controls and changes in economic climate or other foreseen circumstances. We do not have any control over 
the  process  or  timing  of  the  acquisition  of  these  materials  by  our  manufacturers.  We  may  enter  into  agreements  to  purchase 
certain  materials  and  provide  them  to  our  manufacturers,  with  all  the  risks  and  uncertainties  of  supply  associated  with  those 
purchases. If we or our manufacturers are unable to obtain these materials for our preclinical studies and clinical trials, product 
testing  and  potential  regulatory  approval  of  our  product  candidates  would  be  delayed,  significantly  impacting  our  ability  to 
develop  and  commercialize  our  product  candidates.  If  our  manufacturers  or  we  are  unable  to  purchase  these  materials  for 
commercial distribution of our product or, after regulatory approval has been obtained, our product candidates, the commercial 
launch of our product and product candidates would be delayed or there would be a shortage in supply, which would materially 
affect our ability to generate revenues from the sale of our product or product candidates.

Manufacturing 
commercialization.

issues  may  arise 

that  could 

increase  product  and  regulatory  approval  costs  or  delay 

Manufacturing  of  our  product  and  product  candidates  requires  us  or  our  manufacturing  partners  to  conduct  required 
stability and comparability testing. We or our partners may encounter product, packaging, equipment and process-related issues 
that  may  require  refinement  or  resolution  in  order  to  successfully  commercialize  our  product  and  proceed  with  our  planned 
clinical trials and obtain regulatory approval for commercial marketing of our product candidates. In the future, we may identify 
impurities,  which  could  result  in  increased  scrutiny  by  regulatory  authorities,  delays  in  our  clinical  programs  and  regulatory 
approval, increases in our operating expenses or failure to obtain or maintain approval for our product or product candidates.

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We currently rely on WuXi App Tec Biopharmaceuticals, a company based in the People's Republic of China (the "PRC"), 
as  the  sole  supplier  of  our  biologic  product,  ATB200.  Accordingly,  there  is  a  risk  that  supplies  of  our  product  may  be 
significantly delayed by or may become unavailable as a result of manufacturing, equipment, process, or business-related issues 
affecting that company. We may also face additional manufacturing and supply-chain risks due to the regulatory and political 
structure of the PRC, or as a result of the international relationship between the PRC and the U.S. or any of the other countries 
in  which  our  products  are  marketed.  In  addition,  the  recent  out-breaks  of  SARS,  COVID-19  “coronavirus”  or  other  similar 
illnesses in PRC could impact operations at Wuxi. Although currently there has been no impact on operations and we and Wuxi 
have  robust  mitigation  plans  in  place,  there  can  be  no  assurance  that  operations  would  not  be  impacted  in  the  future  with  a 
negative impact on supply of our product.

Risks Related to our Financial Position

We  have  incurred  significant  losses  since  our  inception  and  anticipate  that  we  will  continue  to  incur  losses  in  the 
future.

To date, we have focused on developing and commercializing our first product, Galafold®, and our pipeline product AT-
GAA as well as our multiple gene therapies. Investment in pharmaceutical product development is highly speculative because it 
entails substantial upfront capital expenditures and significant risk that a product candidate will fail to gain regulatory approval 
or become commercially viable. Although the European Commission, PMDA and FDA have granted approval for Galafold®, 
for the treatment of adults with a confirmed diagnosis of Fabry disease and who have an amenable genetic variant, and we are 
generating product sales, we continue to incur significant research, development, commercialization and other expenses related 
to our ongoing operations. As a result, we are not profitable and have incurred losses in each period since our inception. For the 
year ended December 31, 2020, we have a net loss of $276.9 million, and we have an accumulated deficit of $2.0 billion at 
December 31, 2020.

We expect to continue to incur losses for the foreseeable future, and we expect these losses to increase as we:

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continue  our  development  and  commercialization  of,  and  seek  regulatory  approvals  for,  product  candidates, 
including Galafold® and AT-GAA in the U.S., the E.U., U.K., Japan and other foreign countries, as applicable;

conduct  additional  clinical  trials  to  support  the  full  approval  of  Galafold®  in  the  U.S.  and  post-approval 
commitments or trials;

continue communicating with the EMA, as necessary, regarding post-marketing requirements and clinical trials 
for Galafold®;

continue to or initiate the regulatory submission process for marketing approval of Galafold® outside of the U.S. 
and E.U. and other foreign jurisdictions where approved, as applicable;

build and maintain our commercial infrastructure so that it is capable of supporting product sales, marketing and 
distribution of Galafold® and our other product candidates in Europe, Japan and the U.S. or other territories in 
which we have received or may receive regulatory approval;

prepare for launch of AT-GAA in the U.S., E.U., U.K. and other jurisdictions if approved by regulators;

continue our preclinical studies and clinical trials on our gene therapies for Fabry, Pompe, Batten’s, MPS and 
other LDs; and

continue our preclinical studies of and potentially conduct clinical studies of ERT and gene therapy for CDD.

We may encounter unforeseen expenses, difficulties, complications, delays, and other unknown factors that may adversely 
affect  our  business.  The  size  of  our  future  losses  will  depend,  in  part,  on  the  rate  of  future  growth  of  our  expenses  and  our 
ability to generate revenues. If any of our product candidates fails in clinical trials or does not gain regulatory approval, or if 
approved, fails to achieve market acceptance, we may never become profitable. Even if we achieve profitability in the future, 
we may not be able to sustain profitability in subsequent periods. Our prior losses and expected future losses have had and will 
continue to have an adverse effect on our stockholders' equity and working capital.

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We may never become profitable even though we currently generate revenue from the sale of products.

We  began  the  commercial  launch  of  our  first  product,  Galafold®,  in  May  2016,  with  the  U.S.  and  Japan  commercial 
launches in 2018 and are now approved in 40 countries. Our ability to generate material revenue and become profitable depends 
upon our ability to successfully commercialize our existing product and product candidates, or product candidates that we may 
in-license or acquire in the future. Even if we are able to successfully achieve regulatory approval for our product candidates, 
including AT-GAA, we do not know when any of these product candidates will generate revenue for us, if at all and we may 
not  meet  our  current  revenue  and  operating  expense  guidance.  Our  ability  to  generate  revenue  from  our  current  or  future 
product and product candidates depends on a number of factors, including our ability to:

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successfully  complete  development  activities  and  obtain  additional  regulatory  and  pricing  and  reimbursement 
approvals for, and continue to successfully commercialize, Galafold®;

develop and maintain a commercial organization capable of sales, marketing, and distribution for Galafold® and 
any  product  candidates  we  intend  to  market,  in  the  countries  where  we  have  chosen  to  commercialize  the 
product candidates ourselves including the U.S. and Japan;

manufacture commercial quantities of our products at acceptable cost levels;

obtain a commercially viable price for our products;

obtain coverage and adequate reimbursement from third parties, including government payors;

successfully  satisfy  post-marketing  requirements  that  the  FDA,  EMA,  or  other  foreign  regulatory  authorities 
may  impose  for  Galafold®  or  any  of  our  other  product  candidates  that  may  receive  regulatory  approval, 
including pediatric trials and patient registries;

successfully complete development activities, including the necessary preclinical studies and clinical trials, with 
respect to product candidates, including our gene therapies;

complete  and  submit  regulatory  submissions  to  the  FDA,  EMA,  MHRA,  PDMA  and  others  and  obtain 
regulatory approval for our product candidates including AT-GAA and our gene therapies; and

complete and submit applications to, and obtain regulatory approval from, foreign regulatory authorities.

In  addition,  because  of  the  numerous  risks  and  uncertainties  associated  with  product  development,  including  that  our 
product candidates may not advance through development or achieve the safety and efficacy endpoints of applicable clinical 
trials, we are unable to predict the timing or amount of increased expenses, or when or if we will be able to achieve or maintain 
profitability. Furthermore, we anticipate incurring significant costs associated with commercializing these products.

Even if we are able to generate significant revenues from the sale of our products, we may not become profitable and may 
need to obtain additional funding to continue operations. If we fail to become profitable or are unable to sustain profitability on 
a continuing basis, then we may be unable to continue our operations at planned levels and be forced to reduce our operations.

If we require substantial additional capital to fund our operations and we fail to obtain necessary financing, we may 
be  unable 
the  development  and  commercialization  of  our  product  and  development  and 
commercialization of our product candidates.

to  complete 

Our operations have consumed substantial amounts of cash. We expect to continue to spend substantial amounts to advance 
the  preclinical  and  clinical  development  of  our  product  candidates,  and  launch  and  commercialize  our  product  and  product 
candidates for which we may receive regulatory approval, including continuing to build our own commercial organization. We 
believe that our current cash position, including expected Galafold® revenues, is sufficient to fund ongoing Fabry and Pompe, 
and  gene  therapy  program  operations  to  achieve  self-sustainability  without  the  need  for  future  dilutive  financing.  Potential 
future  business  development  collaborations,  restructurings,  pipeline  expansion,  and  investment  in  biologics  or  gene  therapy 
manufacturing capabilities could impact our future capital requirements. However, we may require substantial additional capital 
for  the  development  and  commercialization  of  our  product  and  further  development  and  commercialization  of  our  product 
candidates.

We  cannot  be  certain  that  additional  funding  will  be  available  on  acceptable  terms,  or  at  all.  If  we  are  unable  to  raise 

additional capital in sufficient amounts, when required or on acceptable terms, we could also be required to:

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significantly  delay,  scale  back,  or  discontinue  the  development  or  the  commercialization  of  our  product  or 
product candidates or one or more of our other research and development initiatives;

seek  collaborators  for  Galafold®,  AT-GAA  or  one  or  more  of  our  current  or  future  product  candidates  at  an 
earlier  stage  than  otherwise  would  be  desirable,  or  on  terms  that  are  less  favorable  than  might  otherwise  be 
available;

relinquish or license on unfavorable terms our rights to our technologies, product or product candidates that we 
otherwise would seek to develop or commercialize ourselves;

significantly curtail operations; or

enter into strategic partnerships on unfavorable terms, including sale of our assets for less than full value.

Our forecast of the period of time through which our financial resources will be adequate to support our operations is a 
forward-looking statement and involves risks and uncertainties, and actual results could vary as a result of a number of factors, 
including the factors discussed elsewhere in this "Risk Factors" section. We have based this estimate on assumptions that may 
prove  to  be  wrong,  and  we  could  utilize  our  available  capital  resources  sooner  than  we  currently  expect.  Our  future  funding 
requirements, both near and long-term, will depend on many factors, including, but not limited to:

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the  costs  of  commercialization  activities,  including  maintaining  sales,  marketing,  and  distribution  capabilities 
for Galafold® and any product candidates for which we may receive regulatory approval in regions where we 
choose to commercialize our products on our own, including AT-GAA;

the scope, progress, results, and costs of preclinical development, laboratory testing, and clinical trials for our 
product candidates and any other product candidates that we may in-license or acquire;

the  cost  of  manufacturing  drug  supply  for  our  preclinical  studies,  clinical  trials,  and  commercial  supply, 
including the significant cost of manufacturing AT-GAA and our gene therapies;

the cost of transferring manufacturing technologies for our gene therapies to CMOs;

the outcome, timing, and cost of the regulatory approval process by the FDA, EMA, PMDA and other foreign 
regulatory authorities, including the potential for regulatory authorities to require that we perform more studies 
than those that we currently anticipate for our product and product candidates including AT-GAA;

the cost of filing, prosecuting, defending, and enforcing any patent claims and other intellectual property rights; 

the  cost  and  timing  of  completion  of  existing  or  expanded  commercial-scale  outsourced  manufacturing 
activities;

the cost of defending any claims asserted against us;

the emergence of competing technologies and other adverse market developments;

the extent to which we acquire or invest in additional businesses, products, and technologies.

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Raising  additional  capital  may  cause  dilution  to  our  existing  stockholders,  restrict  our  operations,  or  require  us  to 
relinquish rights to our technologies, Galafold® or product candidates.

We may seek additional capital through a combination of private and public equity offerings, debt financings, receivables 
or  royalty  financings,  strategic  collaborations  and  alliances,  restructuring  and  licensing  arrangements.  To  the  extent  that  we 
raise additional capital through the sale of equity or convertible debt securities, your ownership interest will be diluted, and the 
terms may include liquidation or other preferences that adversely affect the rights of existing stockholders. Debt, receivables, 
and royalty financings may be coupled with an equity component, such as warrants to purchase stock, which could also result in 
dilution of our existing stockholders' ownership. The incurrence of additional indebtedness beyond our existing indebtedness 
with  the  remaining  convertible  note  holders  and  Senior  Secured  Term  Loan  due  2026  could  also  result  in  increased  fixed 
payment obligations and could also result in certain restrictive covenants, such as limitations on our ability to incur further debt, 
limitations  on  our  ability  to  acquire  or  license  intellectual  property  rights,  and  other  operating  restrictions  that  could  have  a 
material adverse effect on our ability to conduct our business and may result in liens being placed on our assets and intellectual 
property.  If  we  were  to  default  on  any  of  our  indebtedness,  we  could  lose  such  assets  and  intellectual  property.  If  we  raise 
additional funds through strategic collaborations and alliances and licensing arrangements with third parties, we may have to 
relinquish valuable rights to Galafold® or our product candidates, or grant licenses on terms that are not favorable to us. If we 
are unable to raise additional funds through equity or debt financing when needed, we may be required to delay, limit, reduce or 
terminate our product development or commercialization efforts or grant rights to develop and market our technologies that we 
would otherwise prefer to develop and market ourselves.

Servicing our debt requires a significant amount of cash, and we may not have sufficient cash flow from our business 
to pay our substantial debt.

On December 21, 2016, we issued $250 million aggregate principal amount of 3% unsecured Convertible Senior Notes due 
2023 (the "Convertible Notes"), in a private offering to qualified institutional buyers pursuant to Rule 144A under the Securities 
Act. The Convertible Notes bear interest at a fixed rate of 3% per year, payable semiannually on June 15 and December 15 of 
each year, beginning on June 15, 2017. The Convertible Notes will mature on December 15, 2023, unless earlier repurchased, 
redeemed,  or  converted  in  accordance  with  their  terms.  The  Convertible  Notes  are  convertible  at  the  option  of  the  holders, 
under certain circumstances and during certain periods, into cash, shares of our common stock, par value $0.01 per share, or a 
combination thereof and may be settled. 

During  the  first  and  second  quarters  of  2019,  we  entered  into  separate,  privately  negotiated  exchange  agreements  (the 
"Exchange Agreements") with a limited number of holders (the "Holders") of the unsecured Convertible Senior Notes due in 
2023  ("Convertible  Notes").  Under  the  terms  of  the  Exchange  Agreements,  the  Holders  agreed  to  exchange  an  aggregate 
principal  amount  of  $247.2  million  of  Convertible  Notes  held  by  them  in  exchange  for  an  aggregate  of  approximately  44.0 
million  shares  of  our  common  stock,  par  value  $0.01  per  share.  Additionally,  we  terminated  the  Capped  Call  Confirmations 
related to the exchange of the Convertible Notes for cash proceeds of $19.9 million.

In July 2020, we entered into the Senior Secured Term Loan due 2026 for a $400 million credit facility with Hayfin Capital 
Management, with an interest rate equal to 3-month LIBOR, subject to a 1% floor, plus 6.5% per annum that requires interest-
only payments until mid-2024 and matures in six years in 2026. We received net proceeds of $385.9 million in July 2020, after 
deducting fees and expenses. There were no warrants or equity conversion features associated with the Senior Secured Term 
Loan  due  2026.  The  Senior  Secured  Term  Loan  due  2026  contains  a  minimum  liquidity  covenant  of  $75  million,  tested 
monthly and in effect at all times, and an incremental minimum consolidated revenue covenant, measured as of the previous 
four consecutive fiscal quarters. The minimum consolidated revenue covenant ranges from $140 million, beginning March 31, 
2021, and peaks at $225 million by June 30, 2023, continuing at that level until the loan is repaid.

There  can  be  no  assurance  that  our  cash  and  cash  equivalents,  together  with  funds  generated  by  our  operations  and  any 
future financings, will be sufficient to satisfy our debt payment obligations or that we will have sufficient equity to satisfy these 
obligations.  Our  inability  to  generate  funds  obtain  financing  sufficient  to  satisfy  our  debt  payment  obligations  or  remain  in 
compliance with the debt covenants may result in such obligations being accelerated by our lenders, which would likely have a 
material adverse effect on our business, financial condition and results of operations.

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Foreign currency exchange rate fluctuations could harm our financial results.

We conduct operations in many countries involving transactions denominated in a variety of currencies other than the U.S. 
dollar.  The  majority  of  our  current  Galafold®  revenue  is  derived  from  outside  the  U.S.  Accordingly,  changes  in  the  value  of 
currencies  relative  to  the  U.S.  dollar  may  impact  our  consolidated  revenues  and  operating  results  due  to  transactional  and 
translational  remeasurement  that  is  reflected  in  our  earnings.  The  current  exposures  arise  primarily  from  cash,  accounts 
receivable,  intercompany  receivables  and  payables,  and  net  product  sales  denominated  in  foreign  currencies.  Fluctuations  in 
currency exchange rates have had, and will continue to have, an impact on our results as expressed in U.S. dollars. We are not 
currently  engaged  in  any  foreign  currency  hedging  activities  and  there  can  be  no  assurance  that  currency  exchange  rate 
fluctuations will not adversely affect our results of operations, financial condition and cash flows. In addition, our outlooks do 
not  assume  fluctuations  in  currency  exchange  rates.  Adverse  fluctuations  in  currency  exchange  rates  from  the  date  of  our 
outlooks  could  cause  our  actual  results  to  differ  materially  from  those  anticipated  in  our  outlooks  and  adversely  impact  our 
business, results of operations and financial condition.

We  also  face  risks  arising  from  the  imposition  of  exchange  controls  and  currency  devaluations.  Exchange  controls  may 
limit our ability to convert foreign currencies into U.S. dollars or to make payments by our foreign subsidiaries or businesses 
located  in  or  conducted  within  a  country  imposing  controls.  Currency  devaluations  result  in  a  diminished  value  of  funds 
denominated in the currency of the country instituting the devaluation.

In addition, Brexit and the continued uncertainty around the full impact of it and the exact trade arrangements upon exit has 
adversely  impacted  global  markets,  including  currencies,  and  resulted  in  a  decline  and  volatility  in  the  value  of  the  British 
pound  and  the  Euro,  as  compared  to  the  U.S.  dollar  and  other  currencies.  Volatility  in  exchange  rates  and  global  financial 
markets is expected to continue due to a number of factors, including uncertainty surrounding Brexit trade arrangements and 
continued political and economic uncertainty globally. 

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

As of December 31, 2020, we had federal and state net operating loss carry forwards ("NOLs") of approximately $1,156 
million  and  $889.4  million  respectively.  The  federal  carry  forward  for  losses  generated  prior  to  2018  will  expire  in  2029 
through 2037. Federal net operating losses incurred in 2018 and onward have an indefinite expiration under the 2017 Tax Act. 
Most  of  the  state  carry  forwards  generated  prior  to  2009  have  expired  through  2016.  The  remaining  state  carry  forwards 
including  those  generated  in  2009  through  2020  will  expire  in  2029  through  2040.  Utilization  of  NOLs  may  be  subject  to  a 
substantial  limitation  pursuant  to  Section  382  of  the  Internal  Revenue  Code  of  1986,  as  amended  (the  "Code"),  as  well  as 
similar state statutes in the event of an ownership change. Such ownership changes have occurred in the past, and could occur 
again  in  the  future  Under  Section  382  of  the  Internal  Revenue  Code  of  1986,  as  amended,  or  Section  382,  if  a  corporation 
undergoes an "ownership change," generally defined as a greater than 50% change (by value) in its equity ownership over a 
three-year period, the corporation's ability to use its pre-change NOLs and other pre-change tax attributes (such as research and 
development tax credits) to offset its post-change income may be limited. We may experience ownership changes in the future 
as a result of shifts in our stock ownership some of which are outside our control. We completed a detailed study of our NOLs 
and  determined  that  there  was  not  an  ownership  change  in  excess  of  50%.  Ownership  changes  in  future  periods  may  place 
additional limits on our ability to utilize net operating loss and tax credit carry forwards. In addition, at the state level, there may 
be periods during which the use of NOLs is suspended or otherwise limited, which could accelerate or permanently increase 
state taxes owed.

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Our  executive  officers,  directors  and  principal  stockholders  maintain  the  ability  to  exert  significant  influence  and 
control over matters submitted to our stockholders for approval.

Our executive officers, directors and affiliated stockholders beneficially own shares representing approximately 35.5% of 
our common stock as of December 31, 2020. As a result, if these stockholders were to choose to act together, they would be 
able  to  exert  significant  influence  and  control  over  matters  submitted  to  our  stockholders  for  approval,  as  well  as  our 
management and affairs. For example, these persons, if they choose to act together, could influence the election of directors and 
approval  of  any  merger,  consolidation,  sale  of  all  or  substantially  all  of  our  assets  or  other  business  combination  or 
reorganization. This concentration of voting power could delay or prevent an acquisition of us on terms that other stockholders 
may desire. The interests of this group of stockholders may not always coincide with the interests of other stockholders, and 
they  may  act,  whether  by  meeting  or  written  consent  of  stockholders,  in  a  manner  that  advances  their  best  interests  and  not 
necessarily  those  of  other  stockholders,  including  obtaining  a  premium  value  for  their  common  stock,  and  might  affect  the 
prevailing market price for our common stock.

Because we do not anticipate paying any cash dividends on our capital in the foreseeable future, capital appreciation, 
if any, will be our stockholders sole source of gain.

We have never declared or paid cash dividends on our capital stock. We currently intend to retain all of our future earnings, 
if  any,  to  finance  the  development  and  growth  of  our  business.  In  addition,  the  terms  of  any  future  debt  agreements  may 
preclude us from paying dividends. As a result, capital appreciation, if any, of our common stock will be our stockholders sole 
source of gain for the foreseeable future. 

Our disclosure controls and procedures may not prevent or detect all errors or acts of fraud.

We  are  subject  to  the  periodic  reporting  requirements  of  the  Exchange  Act.  Our  disclosure  controls  and  procedures  are 
designed to reasonably assure that information required to be disclosed by us in reports we file or submit under the Exchange 
Act is accumulated and communicated to management, recorded, processed, summarized and reported within the time periods 
specified  in  the  rules  and  forms  of  the  Securities  and  Exchange  Commission.  We  believe  that  any  disclosure  controls  and 
procedures, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives 
of the control system are met.

These inherent limitations reflect the reality that judgments can be faulty, and that breakdowns can occur because of 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  an  unauthorized  override  of  the  controls.  Accordingly,  because  of  the  inherent  limitations  in  our  control 
system, misstatements due to error or fraud may occur and not be detected.

Risks Related to our Intellectual Property

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 competitors could develop and commercialize technology and products 
similar  or  identical  to  ours,  and  our  ability  to  successfully  commercialize  our  technology  and  products  may  be 
adversely affected.

Our success depends in large part on our ability to obtain and maintain patent protection in the U.S. and other countries 
with  respect  to  our  proprietary  technology  and  products.  We  seek  to  protect  our  proprietary  position  by  filing  patent 
applications in the U.S. and in certain foreign jurisdictions related to our novel technologies, product and product candidates 
that are important to our business. This process is expensive and time-consuming, and we may not be able to file and prosecute 
all necessary or desirable patent applications at a reasonable cost or in a timely manner. 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. Moreover, if 
we  license  technology  or  product  candidates  from  third  parties  in  the  future,  these  license  agreements  may  not  permit  us  to 
control  the  preparation,  filing  and  prosecution  of  patent  applications,  or  to  maintain  or  enforce  the  patents,  covering  this 
intellectual  property.  These  agreements  could  also  give  our  licensors  the  right  to  enforce  the  licensed  patents  without  our 
involvement, or to decide not to enforce the patents at all. Therefore, in these circumstances, these patents and applications may 
not be prosecuted and enforced in a manner consistent with the best interests of our business.

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The patent position of biotechnology and pharmaceutical companies generally is highly uncertain, involves complex legal 
and  factual  questions  and  has  in  recent  years  been  the  subject  of  much  litigation.  As  a  result,  the  issuance,  scope,  validity, 
enforceability and commercial value of our patent rights are highly uncertain. Our pending and future patent applications may 
not result in patents being issued which 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 U.S. and other countries may diminish the value of our patents or narrow the scope of our patent protection.

The degree of future protection for our proprietary rights is uncertain, and we cannot ensure that:

•

•

•

•

•

•

•

•

•

•

we or our licensors were the first to make the inventions covered by each of our pending patent applications;

we or our licensors were the first to file patent applications for these inventions;

others will not independently develop similar or alternative technologies or duplicate any of our technologies;

any patents issued to us or our licensors will provide a basis for commercially viable products, will provide us 
with any competitive advantages or will not be challenged by third parties;

licenses from other third parties will not be required to commercialize patented products;

we will develop additional proprietary technologies that are patentable;

we will file patent applications for new proprietary technologies promptly or at all;

our patents will not expire prior to or shortly after commencing commercialization of a product;

the patents of others will not have a negative effect on our ability to do business; or

patent authorities will not identify deficiencies in our patent applications and refuse to grant our patents.

In addition, we cannot be assured that any of our pending patent applications will result in issued patents. In particular, we 
have filed patent applications in the U.S., the European Patent Office and other countries outside the U.S. that have not been 
issued as patents. These pending applications include, among others, some of the patent applications for ATB200, Galafold®, 
and our gene therapy platforms and product candidates. If patents are not issued in respect of our pending patent applications, 
we may not be able to stop competitors from marketing similar products in Europe and other countries in which we do not have 
issued patents.

The patents that we have licensed from Mt. Sinai School of Medicine relating to use of Galafold® to treat Fabry disease 
expired in 2018 in the U.S. and expired in 2019 in all other jurisdictions. In addition to patent protection outside of the U.S., we 
intend  to  seek  orphan  medicinal  product  designation  of  our  product  candidates  and  to  rely  on  statutory  data  exclusivity 
provisions in jurisdictions outside the U.S. where such protections are available, including Europe. The patent rights that we 
own or have licensed relating to our product candidates are limited in ways that may affect our ability to exclude third parties 
from competing against us if we obtain regulatory approval to market these product candidates. In particular:

•

•

We  do  not  hold  composition  of  matter  patents  covering  Galafold®  but  we  have  several  method  of  treatment 
patents issued and listed. We do have composition of matter patents, method of manufacture and other patents 
issued for ATB200. We also have several pending applications covering Galafold®, ATB200 and gene therapy. 
There can be no assurance that these applications will be allowed or that allowed applications will be issued or 
that  the  scope  of  such  patents,  if  they  issue,  will  be  sufficient  to  protect  our  product.  Composition  of  matter 
patents  can  provide  protection  for  pharmaceutical  products  to  the  extent  that  the  specifically  covered 
compositions are important. For our product candidates for which we do not hold composition of matter patents, 
competitors who obtain the requisite regulatory approval can offer products with the same composition as our 
products so long as the competitors do not infringe any method of use patents that we may hold.

For some of our product candidates the principal patent protection that covers or those we expect will cover our 
product candidate is a method of use patent. This type of patent only protects the product when used or sold for 
the specified method. However, this type of patent does not limit a competitor from making and marketing a 
product that is identical to our product that is labeled for an indication that is outside of the patented method, or 
for which there is a substantial use in commerce outside the patented method.

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Moreover, physicians may prescribe such a competitive identical product for indications other than the one for which the 
product  has  been  approved,  or  off-label  indications,  that  are  covered  by  the  applicable  patents.  Although  such  off-label 
prescriptions may infringe or induce infringement of method of use patents, the practice is common and such infringement is 
difficult to prevent or prosecute.

The laws of foreign countries may not protect our rights to the same extent as the laws of the U.S. For example, European 
patent law restricts the patentability of methods of treatment of the human body more than U.S. law does. In addition, we may 
not pursue or obtain patent protection in all major markets. Assuming the other requirements for patentability are met, currently, 
the first to file a patent application is generally entitled to the patent. However, prior to March 16, 2013, in the U.S., the first to 
invent was entitled to the patent. Publications of discoveries in the scientific literature often lag behind the actual discoveries, 
and patent applications in the U.S. and other jurisdictions are typically not published until 18 months after filing, or in some 
cases  not  at  all.  Therefore,  we  cannot  know  with  certainty  whether  we  were  the  first  to  make  the  inventions  claimed  in  our 
patents or pending patent applications, or that we were the first to file for patent protection of such inventions.

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

Even  if  our  patent  applications  issue  as  patents,  they  may  not  issue  in  a  form  that  will  provide  us  with  any  meaningful 
protection,  prevent  competitors  from  competing  with  us  or  otherwise  provide  us  with  any  competitive  advantage.  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. In addition, other companies may attempt to circumvent any regulatory data protection or 
market  exclusivity  that  we  obtain  under  applicable  legislation,  which  may  require  us  to  allocate  significant  resources  to 
preventing such circumvention. Legal and regulatory developments in the E.U. and elsewhere may also result in clinical trial 
data  submitted  as  part  of  an  MAA  becoming  publicly  available.  Such  developments  could  enable  other  companies  to 
circumvent our intellectual property rights and use our clinical trial data to obtain marketing authorizations in the E.U. and in 
other jurisdictions. Such developments may also require us to allocate significant resources to prevent other companies from 
circumventing  or  violating  our  intellectual  property  rights.  Our  attempts  to  prevent  third  parties  from  circumventing  our 
intellectual property and other rights may ultimately be unsuccessful. We may also fail to take the required actions or pay the 
necessary fees to maintain our patents.

The  issuance  of  a  patent  is  not  conclusive  as  to  its  inventorship,  scope,  validity  or  enforceability,  and  our  owned  and 
licensed patents may be challenged in the courts or patent offices in the U.S. and abroad. Such challenges 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 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. 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 patent portfolio may not provide us with sufficient rights to exclude others 
from commercializing products similar or identical to ours.

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Further,  litigation,  interferences,  oppositions,  inter  partes  reviews,  administrative  challenges  or  other  similar  types  of 
proceedings are, have been and may in the future be necessary in some instances to determine the validity and scope of certain 
of  our  proprietary  rights,  and  in  other  instances  to  determine  the  validity,  scope  or  non-infringement  of  certain  patent  rights 
claimed  by  third  parties  to  be  pertinent  to  the  manufacture,  use  or  sale  of  our  products.  We  may  also  face  challenges  to  our 
patent  and  regulatory  protections  covering  our  products  by  third  parties,  including  manufacturers  of  generics  and  biosimilars 
that  may  choose  to  launch  or  attempt  to  launch  their  products  before  the  expiration  of  our  patent  or  regulatory  exclusivity. 
Litigation,  interference,  oppositions,  inter  partes  reviews,  administrative  challenges  or  other  similar  types  of  proceedings  are 
unpredictable  and  may  be  protracted,  expensive  and  distracting  to  management.  The  outcome  of  such  proceedings  could 
adversely affect the validity and scope of our patent or other proprietary rights, hinder our ability to manufacture and market 
our  products,  require  us  to  seek  a  license  for  the  infringed  product  or  technology  or  result  in  the  assessment  of  significant 
monetary damages against us that may exceed amounts, if any, accrued in our financial statements. An adverse determination in 
a judicial or administrative proceeding or a failure to obtain necessary licenses could prevent us from manufacturing or selling 
our products. Furthermore, payments under any licenses that we are able to obtain would reduce our profits derived from the 
covered products and services.

Additionally, our products, or the technologies or processes used to formulate or manufacture those products may now, or 
in the future, infringe the patent rights of third parties. It is also possible that third parties will obtain patent or other proprietary 
rights  that  might  be  necessary  or  useful  for  the  development,  manufacture  or  sale  of  our  products.  We  may  need  to  obtain 
licenses for intellectual property rights from others and may not be able to obtain these licenses on commercially reasonable 
terms, if at all.

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

Competitors  may  infringe  our  patents,  trademarks,  copyrights  or  other  intellectual  property.  To  counter  infringement  or 
unauthorized use, we may be required to file claims, which can be expensive and time consuming. Any claims we assert against 
perceived  infringers  could  provoke  these  parties  to  assert  counterclaims  against  us  alleging  that  we  infringe  their  intellectual 
property. In addition, in a patent infringement proceeding, a court may decide that a patent of ours is invalid or unenforceable, 
in whole or in part, construe the patent's claims narrowly or may refuse to stop the other party from using the technology at 
issue on the grounds that our patents do not cover the technology in question.

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.

Our research, development and commercialization activities, as well as any product candidates or products resulting from 
these activities, including our gene therapy products, may infringe or be accused of infringing one or more claims of an issued 
patent or may fall within the scope of one or more claims in a published patent application that may subsequently issue and to 
which we do not hold a license or other rights. Third parties may own or control these patents or patent applications in the U.S. 
and abroad. These third parties could bring claims against us that would cause us to incur substantial expenses and, if successful 
against us, could cause us to pay substantial damages. Further, if a patent infringement suit were brought against us, we or they 
could be forced to stop or delay research, development, manufacturing or sales of the product or product candidate that is the 
subject of the suit.

No  assurance  can  be  given  that  patents  do  not  exist,  have  not  been  filed,  or  could  not  be  filed  or  issued,  which  contain 
claims  covering  our  product  candidates,  technology  or  methods.  Because  of  the  number  of  patents  issued  and  patent 
applications filed in our field, we believe there is a risk that third parties may allege they have patent rights encompassing our 
product candidates, technology or methods.

If any of these patents were to be asserted against us, while we do not believe that our product candidates would be found 
to infringe any valid claim of such patents, there is no assurance that a court would find in our favor. If we were to challenge 
the  validity  of  any  issued  U.S.  patent  in  court,  we  would  need  to  overcome  a  presumption  of  validity  that  attaches  to  every 
patent. This burden is high and would require us to present clear and convincing evidence as to the invalidity of the patent's 
claims. There is no assurance that a court would find in our favor on infringement or validity. Furthermore, during the course of 
litigation,  confidential  information  may  be  disclosed  in  the  form  of  documents  or  testimony  in  connection  with  discovery 
requests, depositions or trial testimony. Disclosure of our confidential information and our involvement in intellectual property 
litigation could materially adversely affect our business.

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In order to avoid or settle potential claims with respect to any patent rights of third parties, we may choose or be required to 
seek a license from a third party and be required to pay license fees or royalties or both. These licenses may not be available on 
acceptable terms, or at all. Even if we or our collaborators were able to obtain a license, the rights may be nonexclusive, which 
could  result  in  our  competitors  gaining  access  to  the  same  intellectual  property.  Ultimately,  we  could  be  prevented  from 
commercializing a product, or be forced to cease some aspect of our business operations, if, as a result of actual or threatened 
patent infringement claims, we are unable to enter into licenses on acceptable terms. This could harm our business significantly. 

There  has  been  substantial  litigation  and  other  proceedings  regarding  patent  and  other  intellectual  property  rights  in  the 
pharmaceutical  and  biotechnology  industries.  In  addition  to  infringement  claims  against  us,  we  may  become  a  party  to  other 
patent litigation and other proceedings, including interference proceedings declared by the U.S. Patent and Trademark Office 
and opposition proceedings in the European Patent Office, regarding intellectual property rights with respect to our products 
and technology. Even if we prevail, the cost to us of any patent litigation or other proceeding could be substantial.

Some of our competitors may be able to sustain the costs of complex patent litigation more effectively than we can because 
they have substantially greater resources. In addition, any uncertainties resulting from any litigation could significantly limit our 
ability to continue our operations. Patent litigation and other proceedings may also absorb significant management time.

We  may  be  subject  to  claims  by  third  parties  asserting  that  we  or  our  employees  have  misappropriated  their 
intellectual property, or claiming ownership of what we regard as our own intellectual property.

Many  of  our  employees  were  previously  employed  at  universities  or  other  biotechnology  or  pharmaceutical  companies, 
including  our  competitors  or  potential  competitors.  Although  we  try  to  ensure  that  our  employees  do  not  use  the  proprietary 
information or know-how of others in their work for us, we may be subject to claims that we or these employees have used or 
disclosed  intellectual  property,  including  trade  secrets  or  other  proprietary  information,  of  any  such  employee's  former 
employer. Litigation may be necessary to defend against these claims.

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

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

If we fail to comply with our obligations in our intellectual property licenses with third parties, we could lose license 
rights that are important to our business.

We  are  a  party  to  license  agreements  with  Nationwide  Children’s  Hospital  ("Nationwide  Children’s")  and  University  of 
Pennsylvania ("Penn") pursuant to which we license key intellectual property relating to our gene therapy product candidates. 
We expect to enter into additional licenses in the future. Our existing licenses impose, and we expect that future licenses will 
impose, various diligences, milestone payment, royalty, insurance and other obligations on us. If we fail to comply with these 
obligations, the licensor may have the right to terminate the license, in which event we might not be able to market any product 
that is covered by the licensed patents.

We have not yet registered our trademarks in all of our potential markets, and failure to secure those registrations 
could adversely affect our business.

Our trademark applications may not be allowed for registration, and our registered trademarks may not be maintained or 
enforced.  During  trademark  registration  proceedings,  we  may  receive  rejections.  Although  we  are  given  an  opportunity  to 
respond  to  those  rejections,  we  may  be  unable  to  overcome  such  rejections.  In  addition,  in  the  U.S.  Patent  and  Trademark 
Office  and  in  comparable  agencies  in  many  foreign  jurisdictions,  third  parties  are  given  an  opportunity  to  oppose  pending 
trademark applications and to seek to cancel registered trademarks. Opposition or cancellation proceedings may be filed against 
our trademarks, and our trademarks may not survive such proceedings. If we do not secure registrations for our trademarks, we 
may encounter more difficulty in enforcing them against third parties than we otherwise would.

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

The  biotechnology  and  pharmaceutical  industries,  especially  in  the  gene  therapy  field,  are  characterized  by  rapidly 
changing technologies, significant 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,  government  agencies  and  public  and  private  research  institutions.  We  are  aware  of  companies  focused  on 
developing  gene  therapies  in  various  indications  as  well  as  several  companies  addressing  other  methods  for  delivering  or 
modifying genes and regulating gene expression. Any advances in gene therapy technology made by a competitor may be used 
to develop therapies that could compete against any of our product candidates.

Many of our potential competitors, alone or with their strategic partners, have substantially greater financial, technical and 
other  resources  than  we  do,  such  as  larger  research  and  development,  clinical,  marketing  and  manufacturing  organizations. 
Mergers  and  acquisitions  in  the  biotechnology  and  pharmaceutical  industries  may  result  in  even  more  resources  being 
concentrated  among  a  smaller  number  of  competitors.  Our  commercial  opportunity  could  be  reduced  or  eliminated  if 
competitors develop and commercialize products that are safer, more effective, have fewer or less severe side effects, are more 
convenient or are less expensive than any products that we may develop. Competitors also may obtain FDA or other regulatory 
approval  for  their  products  more  rapidly  than  we  may  obtain  approval  for  ours,  which  could  result  in  our  competitors 
establishing  a  strong  market  position  before  we  are  able  to  enter  the  market.  Additionally,  technologies  developed  by  our 
competitors may render our potential product candidates uneconomical or obsolete, and we may not be successful in marketing 
our product candidates against competitors.

In  addition  to  our  own  patents,  we  have  acquired  licenses  to  certain  patent  rights  and  proprietary  technology  from  third 
parties, including our current partners at Nationwide Children’s and Penn, that are important or necessary to the development of 
our  technology  and  products,  including  technology  related  to  our  manufacturing  process  and  our  gene  therapy  product  and 
product candidates. These and other licenses may not provide exclusive rights to use such intellectual property and technology 
in all relevant fields of use and in all territories in which we may wish to develop or commercialize our technology and products 
in  the  future.  As  a  result,  we  may  not  be  able  to  prevent  competitors  from  developing  and  commercializing  competitive 
products in territories included in all of our licenses. 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, or at all, 
which could have a material adverse effect on our business, financial condition, results of operations and prospects.

Risks Related to the COVID-19 Pandemic

The  novel  coronavirus  ("COVID-19")  pandemic  and  efforts  to  reduce  its  spread  may  negatively  impact  our  business 
and operations.

The COVID-19 pandemic has substantially burdened healthcare systems worldwide which may impact progression of our 
clinical  trials,  development  and  manufacturing  of  our  product  and  product  candidates  and  continued  commercialization  of 
Galafold®.  Required  inspections  and  reviews  by  regulatory  agencies  may  also  be  delayed  due  to  the  focus  of  resources  on 
COVID-19  as  well  as  travel  and  other  restrictions.  Significant  delays  in  the  timing  of  our  clinical  trials  and  in  regulatory 
reviews  could  adversely  affect  our  ability  to  commercialize  some  assets  in  our  product  pipeline.  Lack  of  normal  access  by 
patients  to  the  healthcare  system,  along  with  concern  about  the  continued  supply  of  medications,  may  result  in  changes  in 
buying patterns throughout the supply chain, including by patients, which could increase or decrease demand for our products. 
Similarly, we have temporarily halted in-person interactions by our employees with healthcare providers, which may decrease 
demand for our products. COVID-19 could also have an adverse impact on our supply chain and distribution systems, which 
could impact our ability to distribute our products and the ability of third parties on which we rely to fulfill their obligations to 
us,  increase  our  expenses  and  have  a  material  adverse  effect  on  our  ability  to  generate  revenue.  In  addition,  the  conditions 
created by the pandemic may intensify other risks inherent in our business, including, among other things, risks related to drug 
pricing and access, intellectual property protection, product safety and efficacy concerns, product liability and other litigation, 
and the impact of adverse global and local economic conditions.

As a result, while the financial impact on us has not been material to date, given the rapid and evolving nature of the virus, 
COVID-19  could  negatively  affect  our  results  of  operations,  financial  condition,  liquidity  and  cash  flows  in  future  periods, 
perhaps  materially.  The  degree  to  which  COVID-19  affects  us  will  depend  on  developments  that  are  highly  uncertain  and 
beyond our knowledge or control, including, but not limited to, the duration and severity of the pandemic, the actions taken to 

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reduce its transmission, and the speed with which, and extent to which, more stable economic and operating conditions resume. 
Should  the  COVID-19  pandemic  and  any  associated  mitigation  measures,  recession  or  depression  continue  for  a  prolonged 
period, our results of operations, financial condition, liquidity, and cash flows could be materially impacted by lower revenues 
and profitability and a lower likelihood of effectively and efficiently developing and launching new products.

Risks Related to Employment, Environmental, Social and Governance Matters

Our future success depends on our ability to retain our Chief Executive Officer and other key executives and to attract, 
retain and motivate qualified personnel.

We  are  highly  dependent  on  John  F.  Crowley,  our  Chairman  and  Chief  Executive  Officer,  Bradley  L.  Campbell,  our 
President and Chief Operating Officer, and Daphne Quimi, our Chief Financial Officer. These executives each have significant 
pharmaceutical industry experience. The loss of the services of any of these executives might impede the achievement of our 
research, development and commercialization objectives and materially adversely affect our business and we may not be able to 
replace these executives with candidates with similar background and experience in the event of the loss of their services. We 
do not maintain "key person" insurance on Mr. Crowley or on any of our other executive officers.

Recruiting and retaining qualified scientific, clinical and sales and marketing personnel will also be critical to our success, 
including our Research and Gene Therapy Center of Excellence in Philadelphia. In addition, maintaining a qualified finance and 
legal  department  is  key  to  our  ability  to  meet  our  regulatory  obligations  as  a  public  company  and  important  in  any  potential 
capital raising activities. Our industry has experienced a high rate of turnover in recent years. We may not be able to attract and 
retain  these  personnel  on  acceptable  terms  given  the  competition  among  numerous  pharmaceutical  and  biotechnology 
companies for similar personnel, particularly in New Jersey and Philadelphia and their surrounding areas. Although we believe 
we offer competitive salaries and benefits, we may have to increase spending in order to retain personnel. If we fail to retain our 
remaining  qualified  personnel  or  replace  them  when  they  leave,  we  may  be  unable  to  recruit  replacements  nor  continue  our 
development and commercialization activities.

In addition, we rely on consultants and advisors, including scientific and clinical advisors, to assist us in formulating our 
research and development and commercialization strategy. Our consultants and advisors may be employed by employers other 
than us and may have commitments under consulting or advisory contracts with other entities that may limit their availability to 
us.

We  expect  to  expand  our  development,  regulatory  and  sales  and  marketing  capabilities,  and  as  a  result,  we  may 
encounter difficulties in managing our growth, which could disrupt our operations.

As of December 31, 2020, we had 483 full-time employees. As our development and commercialization strategies develop, 
we  will  need  additional  managerial,  operational,  sales,  marketing,  financial,  technical  operations  and  other  resources.  Our 
management, personnel and systems currently in place may not be adequate to support this future growth. We may not be able 
to  effectively  manage  the  expansion  of  our  operations,  which  may  result  in  weaknesses  in  our  infrastructure,  give  rise  to 
operational mistakes, loss of business opportunities, loss of employees and reduced productivity among remaining employees. 
Future growth could require significant capital expenditures and may divert financial resources from other projects, such as the 
development  of  our  existing  or  future  product  candidates  and  we  may  not  be  able  to  replace  key  personnel  in  the  event  of 
turnover. Future growth would impose significant added responsibilities on members of management, including:

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managing the development and commercialization of any product candidates approved for marketing;

overseeing our ongoing preclinical studies and clinical trials effectively;

identifying,  recruiting,  maintaining,  motivating  and  integrating  additional  employees,  including  any  sales  and 
marketing personnel engaged in connection with the commercialization of any approved product;

managing  our  internal  development  efforts  effectively  while  complying  with  our  contractual  obligations  to 
licensors, licensees, contractors and other third parties;

managing our collaboration partners and associated joint steering committees;

managing any clinical or commercial collaborations with third parties;

improving our managerial, development, operational and financial systems and procedures;

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monitoring and improving diversity, inclusion and pay-equity initiatives;

developing  our  compliance  infrastructure  and  processes  to  ensure  compliance  with  regulations  applicable  to 
public companies;

developing biologics and gene therapy manufacturing expertise; and

expanding our facilities.

As our operations expand, we will need to manage additional relationships with various strategic collaborators, suppliers 
and  other  third  parties.  Our  future  financial  performance  and  our  ability  to  commercialize  our  product  candidates  and  to 
compete effectively will depend, in part, on our ability to manage any future growth effectively. To that end, we must be able to 
manage  our  development  efforts  and  clinical  trials  effectively  and  hire,  train  and  integrate  additional  management, 
administrative and sales and marketing personnel. We may not be able to accomplish these tasks, and our failure to accomplish 
any of them could prevent us from successfully growing our company.

Our  employees,  independent  contractors,  principal  investigators,  CROs,  consultants  and  vendors  may  engage  in 
misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which 
could cause significant liability for us and harm our reputation.

We  are  exposed  to  the  risk  that  our  employees,  independent  contractors,  principal  investigators,  CROs,  consultants  and 
vendors  may  engage  in  fraudulent  conduct,  harassment  or  other  illegal  activity.  Misconduct  by  these  parties  could  include 
intentional, reckless and/or negligent conduct or disclosure of unauthorized activities to us that violates:

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FDA or similar regulations of foreign regulatory authorities, including those laws requiring the reporting of true, 
complete and accurate information to such authorities;

manufacturing standards;

federal  and  state  healthcare  fraud  and  abuse  laws  and  regulations,  anti-bribery  and  corruption  laws,  anti-
discrimination  and  harassment  laws,  privacy  and  similar  laws  and  regulations  established  and  enforced  by 
foreign regulatory authorities; or

laws that require the reporting of financial information or data accurately.

In  particular,  sales,  marketing  and  business  arrangements  in  the  healthcare  industry  are  subject  to  extensive  laws  and 
regulations intended to prevent fraud, kickbacks, self-dealing, bribery and corruption and other abusive practices. These laws 
and  regulations  may  restrict  or  prohibit  a  wide  range  of  pricing,  discounting,  marketing  and  promotion,  sales  commission, 
customer incentive programs and other business arrangements. Activities subject to these laws also involve the improper use of 
information  obtained  in  the  course  of  clinical  trials,  which  could  result  in  regulatory  sanctions  and  serious  harm  to  our 
reputation.  We  have  adopted  a  Code  of  Business  Conduct  and  Ethics,  a  robust  Enterprise  Risk  Management  Program,  and 
conduct  comprehensive  training,  but  it  is  not  always  possible  to  identify  and  deter  misconduct  by  employees  and  other  third 
parties,  and  the  precautions  we  take  to  detect  and  prevent  this  activity  may  not  be  effective  in  controlling  unknown  or 
unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a 
failure to be in compliance with such laws or regulations. If any such actions are instituted against us, and we are not successful 
in defending ourselves or asserting our rights, those actions could have a material adverse effect on our business and results of 
operations, including the imposition of civil, criminal and administrative penalties, damages, monetary fines, possible exclusion 
from participation in healthcare programs, contractual damages, reputational harm, diminished profits and future earnings, and 
curtailment of our operations, any of which could have a material adverse effect on our ability to operate our business and our 
results of operations.

If  our  enterprise  risk  program,  global  risk  committee  and  other  compliance  methods  are  not  effective,  our  business, 
financial condition and operating results may be adversely affected

Our  ability  to  identify,  manage  and  respond  to  the  various  risks  related  to  our  business  is  largely  dependent  on  our 
established and maintained compliance, risk, audit and reporting systems and procedures. The Board of Directors has ultimate 
responsibility for risk oversight of the Company and carries out this duty through its Committees. Our Audit and Compliance 
Committee,  Nominating  and  Corporate  Governance  Committee,  Compensation  and  Leadership  Development  Committee  and 
Science  and  Technology  Committee  have  each  been  delegated  oversight  authority  by  the  Board  of  Directors  with  respect  to 

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issues in their applicable areas of expertise. These committees are responsible for identifying, monitoring and reporting areas of 
concern to the full Board of Directors. At the Company level, our senior management team similarly monitors risk through the 
Global  Risk  Committee,  which  is  co-chaired  by  our  Chief  Compliance  Officer  and  President  and  Chief  Operating  Officer. 
Membership  of  the  Global  Risk  Committee  consists  primarily  of  key  department  heads  who  are  asked  to  bring  to  such 
committee  relevant  items  for  discussion  that  they  or  their  teams  have  identified  at  the  numerous  sub-committees  these 
individuals chair or attend. The Global Risk Committee then uses this information to develop an Enterprise Risk Management 
Program,  which  identifies  key  risks  and  mitigation  strategies  and  which  is  reported  directly  to  the  Audit  and  Compliance 
Committee on a quarterly basis, and to the full Board of Directors on a yearly basis. Our international business segment also has 
its own companion committee which operates in substantially the same way as the Global Risk Committee and reports key risks 
to the Global Risk Committee for inclusion in the Enterprise Risk Management Program.

If our policies, procedures, and compliance systems, including our Enterprise Risk Management Program and the Global 
Risk Committee are not effective, or if we are not successful in monitoring or evaluating the risks to which we are or may be 
exposed, our business, reputation, financial condition and operating results could be materially adversely affected. We cannot 
provide  assurance  that  our  policies  and  procedures  will  always  be  effective,  or  that  our  management,  the  Enterprise  Risk 
Management Program or the Global Risk Committee would be able to identify any such ineffectiveness. If our compliance and 
risk management strategies are not effective, our business, financial condition and operating results may be adversely affected.

General Risk Factors

Our business and operations would suffer in the event of computer system failures or security breaches.

Despite  the  implementation  of  security  measures,  our  internal  computer  systems,  and  those  of  our  CROs,  contract 
manufacturing  organizations  and  other  third  parties  on  which  we  rely,  are  vulnerable  to  damage  from  computer  viruses, 
unauthorized access, security breaches, natural disasters, terrorism, war and telecommunication and electrical failures. System 
failures, accidents or security breaches could cause interruptions in our operations and could result in a material disruption of 
our clinical activities and business operations, in addition to possibly requiring substantial expenditures of resources to remedy. 
If  such  an  event  were  to  occur  and  cause  interruptions  in  our  operations,  it  could  result  in  a  material  disruption  of  our 
commercialization of our product and our product candidate development programs. For example, the loss of clinical trial data 
from completed or ongoing clinical trials could result in delays in our regulatory approval efforts and significantly increase our 
costs to recover or reproduce the data. To the extent that any disruptions or security breach were to result in a loss or damage to 
our  data  or  applications,  or  inappropriate  disclosure  of  confidential  or  proprietary  information,  we  could  incur  significant 
unexpected losses, expenses and liabilities, we could face litigation or suffer reputational harm and the further development of 
our product candidates could be delayed.

We  may  acquire  other  assets  or  businesses,  or  form  collaborations  or  make  investments  in  other  companies  or 
technologies that could harm our operating results, dilute our stockholders' ownership, increase our debt, or cause us to 
incur significant expense.

As part of our business strategy, we may continue to pursue acquisitions or licenses of assets or businesses, or strategic 
alliances and collaborations, to expand our existing technologies and operations, such as our acquisition of Celenex in 2018 and 
the research collaboration with Penn to develop gene therapies in 2018 and expanded in 2019 We may not identify or complete 
these transactions in a timely manner, on a cost-effective basis, or at all, and we may not realize the anticipated benefits of any 
such transaction, any of which could have a detrimental effect on our financial condition, results of operations, and cash flows. 
We may not be able to find suitable acquisition or licensing candidates, and if we make any acquisitions, we may not be able to 
integrate  these  acquisitions  successfully  into  our  existing  business  and  we  may  incur  additional  debt  or  assume  unknown  or 
contingent  liabilities  in  connection  therewith.  Integration  of  an  acquired  company  or  assets  may  also  disrupt  ongoing 
operations, require the hiring of additional personnel and the implementation of additional internal systems and infrastructure, 
especially the acquisition of commercial assets, and require management resources that would otherwise focus on developing 
our existing business. We may not be able to find suitable collaboration partners or identify other investment opportunities, and 
we may experience losses related to any such investments.

To  finance  any  acquisitions,  licenses  or  collaborations,  we  may  choose  to  issue  debt  or  shares  of  our  common  stock  as 
consideration. Any such issuance of shares would dilute the ownership of our stockholders. If the price of our common stock is 
low or volatile, we may not be able to acquire other assets or companies or fund a transaction using our stock as consideration. 

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Alternatively,  it  may  be  necessary  for  us  to  raise  additional  funds  for  acquisitions  through  public  or  private  financings. 
Additional funds may not be available on terms that are favorable to us, or at all.

Provisions in our corporate charter documents and under Delaware law could make an acquisition of us, which may be 
beneficial  to  our  stockholders,  more  difficult  and  may  prevent  attempts  by  our  stockholders  to  replace  or  remove  our 
current management.

Provisions in our corporate charter and our bylaws may discourage, delay or prevent a merger, acquisition or other change 
in  control  of  us  that  stockholders  may  consider  favorable,  including  transactions  in  which  our  stockholders  might  otherwise 
receive  a  premium  for  their  shares.  These  provisions  could  also  limit  the  price  that  investors  might  be  willing  to  pay  in  the 
future for shares of our common stock, thereby depressing the market price of our common stock. In addition, these provisions 
may  frustrate  or  prevent  any  attempts  by  our  stockholders  to  replace  or  remove  our  current  management  by  making  it  more 
difficult  for  stockholders  to  replace  members  of  our  board  of  directors.  Because  our  board  of  directors  is  responsible  for 
appointing  the  members  of  our  management  team,  these  provisions  could  in  turn  affect  any  attempt  by  our  stockholders  to 
replace current members of our management team. Among others, these provisions:

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establish a classified board of directors, and, as a result, not all directors are elected at one time;

allow the authorized number of our directors to be changed only by resolution of our board of directors;

limit the manner in which stockholders can remove directors from our board of directors;

establish  advance  notice  requirements  for  stockholder  proposals  that  can  be  acted  on  at  stockholder  meetings 
and nominations to our board of directors;

require that stockholder actions must be effected at a duly called stockholder meeting and prohibit actions by 
our stockholders by written consent;

limit who may call stockholder meetings;

authorize our board of directors to issue preferred stock, without stockholder approval, which could be used to 
institute a "poison pill" that would work to dilute the stock ownership of a potential hostile acquirer, effectively 
preventing acquisitions that have not been approved by our board of directors; and

require the approval of the holders of at least 67% of the outstanding voting stock to amend or repeal certain 
provisions of our charter or bylaws.

Moreover, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware 
General Corporation Law, which prohibits a person who owns in excess of 15% of our outstanding voting stock from merging 
or combining with us for a period of three years after the date of the transaction in which the person acquired in excess of 15% 
of our outstanding voting stock, unless the merger or combination is approved in a prescribed manner.

The price of our common stock may be volatile and fluctuate substantially, which could result in substantial losses for 
purchasers of our common stock.

The market price of our common stock is highly volatile and may be subject to wide fluctuations in response to numerous 
factors, some of which are beyond our control. In addition to the factors discussed in this Annual Report on Form 10-K, these 
factors include:

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the success of competitive products or technologies;

regulatory  actions  with  respect  to  our  product  or  product  candidates  or  our  competitors'  products  or  product 
candidates;

actual or anticipated changes in our growth rate relative to our competitors;

the outcome of any patent infringement or other litigation that may be brought against us;

announcements  by  us  or  our  competitors  of  significant  acquisitions,  strategic  collaborations,  joint  ventures, 
collaborations or capital commitments;

results of clinical trials of our product candidates or those of our competitors;

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regulatory or legal developments in the E.U., U.K., U.S. and other countries;

the impact of Brexit on our operations, supply chain, regulatory approvals and personnel;

developments or disputes concerning patent applications, issued patents or other proprietary rights;

the recruitment or departure of key personnel;

the level of expenses related to our product or any of our product candidates or clinical development programs;

actual or anticipated variations in our quarterly operating results;

the number and characteristics of our efforts to in-license or acquire additional product candidates or products;

introduction of new products or services by us or our competitors;

failure to meet the estimates and projections of the investment community or that we may otherwise provide to 
the public;

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;

fluctuations in the valuation of companies perceived by investors to be comparable to us;

share price and volume fluctuations attributable to inconsistent trading volume levels of our shares;

announcement or expectation of additional financing efforts;

sales of our common stock by us, our insiders or our other stockholders;

changes in accounting practices;

lawsuits and other claims asserted against us;

changes in the structure of healthcare payment systems;

market conditions in the pharmaceutical and biotechnology sectors;

general economic, industry and market conditions;

publication  of  research  reports  about  us,  our  competitors  or  our  industry,  or  positive  or  negative 
recommendations or withdrawal of research coverage by securities or industry analysts;

other events or factors, many of which are beyond our control; and

the other factors described in this "Risk Factors" section.

In addition, the stock market in general, and pharmaceutical and biotechnology companies in particular, have experienced 
extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of these 
companies. Broad market and industry factors may negatively affect the market price of our common stock, regardless of our 
actual operating performance. The realization of any of the above risks or any of a broad range of other risks stated above could 
have a material adverse effect on the market price of our common stock.

As we operate in the pharmaceutical and biotechnology industry, we are especially vulnerable to these factors to the extent 
that  they  affect  our  industry  or  our  products.  In  the  past,  securities  class  action  litigation  has  often  been  initiated  against 
companies following periods of volatility in their stock price. This type of litigation could result in substantial costs and divert 
our management's attention and resources, and could also require us to make substantial payments to satisfy judgments or to 
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A significant portion of our total outstanding shares may be sold into the market. This could cause the market price of 
our common stock to drop significantly, even if our business is doing well.

Sales of a substantial number of shares of our common stock in the public market could occur at any time. These sales, or 
the perception in the market that the holders of a large number of shares intend to sell shares, could reduce the market price of 
our  common  stock.  Certain  holders  of  our  common  stock  have  rights,  subject  to  some  conditions,  to  require  us  to  file 
registration statements covering their shares or to include their shares in registration statements that we may file for ourselves or 
other stockholders. We also have registered on a Form S-8 registration statement all shares of common stock that we may issue 
under our equity compensation plans. As a result, these shares can be freely sold in the public market upon issuance, subject to 
volume limitations applicable to affiliates. In addition, certain of our employees, executive officers and directors have entered 
into,  or  may  enter  into,  Rule  10b5-1  plans  providing  for  sales  of  shares  of  our  common  stock  from  time  to  time.  Under  a 
Rule  10b5-1  plan,  a  broker  executes  trades  pursuant  to  parameters  established  by  the  employee,  director  or  officer  when 
entering into the plan, without further direction from the employee, officer or director. A Rule 10b5-1 plan may be amended or 
terminated  in  some  circumstances.  Our  employees,  executive  officers  and  directors  may  also  buy  or  sell  additional  shares 
outside of a Rule 10b5-1 plan when they are not in possession of material, nonpublic information.

We  may  fail  to  qualify  for  continued  listing  on  The  NASDAQ  Global  Market  which  could  make  it  more  difficult  for 
investors to sell their shares.

Our  common  stock  is  listed  on  The  NASDAQ  Global  Market,  or  NASDAQ.  As  a  NASDAQ  listed  company,  we  are 
required to satisfy the continued listing requirements of NASDAQ for inclusion in the Global Market to maintain such listing, 
including, among other things, the maintenance of a minimum closing bid price of $1.00 per share and stockholders' equity of at 
least  $10.0  million.  There  can  be  no  assurance  that  we  will  be  able  to  maintain  compliance  with  the  continued  listing 
requirements or that our common stock will not be delisted from NASDAQ in the future. If our common stock is delisted by 
NASDAQ, we could face significant material adverse consequences, including:

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a limited availability of market quotations for our securities;

reduced liquidity with respect to our securities;

a determination that our shares are a "penny stock," which will require brokers trading in our shares to adhere to 
more stringent rules, possibly resulting in a reduced level of trading activity in the secondary trading market for 
our shares;

a limited amount of news and analyst coverage for our company; and

a decreased ability to issue additional securities or obtain additional financing in the future.

If securities or industry analysts do not publish research or reports or publish unfavorable research about our business, 
the price of our common stock and trading volume could decline.

The trading market for our common stock depends in part on the research and reports that securities or industry analysts 
publish about us or our business. If securities or industry analysts do not initiate or continue coverage of us, the trading price for 
our common stock would be negatively affected. In the event we obtain securities or industry analyst coverage, if one or more 
of the analysts who covers us downgrades our common stock, the price of our common stock would likely decline. If one or 
more of these analysts ceases to cover us or fails to publish regular reports on us, interest in the purchase of our common stock 
could decrease, which could cause the price of our common stock or trading volume to decline.

We have broad discretion in the use of our cash and cash equivalents and may not use them effectively.

We  have  broad  discretion  in  the  use  of  our  cash  and  cash  equivalents,  and  investors  must  rely  on  the  judgment  of  our 
management regarding the use of our cash and cash equivalents. Our management may not use cash and cash equivalents in 
ways that ultimately increase the value of your investment. Our failure to use our cash and cash equivalents effectively could 
result  in  financial  losses  that  could  have  a  material  adverse  effect  on  our  business,  cause  the  price  of  our  common  stock  to 
decline and delay the development of our product and product candidates. Pending their use, we may invest our cash and cash 
equivalents in short-term or long-term, investment-grade, interest-bearing securities. These investments may not yield favorable 
returns.  If  we  do  not  invest  or  apply  our  cash  and  cash  equivalents  in  ways  that  enhance  stockholder  value,  we  may  fail  to 
achieve expected financial results, which could cause the price of our common stock to decline.

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If  we  are  unable  to  protect  the  confidentiality  of  our  trade  secrets,  our  business  and  competitive  position  would  be 
harmed.

In addition to seeking patents for some of our technology and products, we also rely on trade secrets, including unpatented 
know-how, technology and other proprietary information, to maintain our competitive position. We seek to protect these trade 
secrets, in part, by entering into non-disclosure and confidentiality agreements with parties who have access to them, such as 
our employees, corporate collaborators, outside scientific collaborators, contract manufacturers, consultants, advisors and other 
third  parties.  We  also  enter  into  confidentiality  and  invention  or  patent  assignment  agreements  with  our  employees  and 
consultants. However, we cannot guarantee that we have executed these agreements with each party that may have or have had 
access to our trade secrets or that the agreements we have executed will provide adequate protection. Any party with whom we 
have  executed  such  an  agreement  may  breach  that  agreement  and  disclose  our  proprietary  information,  including  our  trade 
secrets, and we may not be able to obtain adequate remedies for such breaches. 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 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 to whom 
they  communicate  it,  from  using  that  technology  or  information  to  compete  with  us.  If  any  of  our  trade  secrets  were  to  be 
obtained or independently developed by a competitor, our competitive position would be harmed.

Litigation may adversely affect our business, financial condition, results of operations or liquidity.

Our business is subject to the risk of litigation by employees, consumers, vendors, competitors, intellectual property rights 
holders,  shareholders,  government  agencies  and  others  through  private  actions,  class  actions,  administrative  proceedings, 
regulatory  actions  or  other  litigation.  For  example,  we  and  certain  of  our  current  and  former  officers  have  previously  been 
parties  to  securities  class  action  lawsuits  against  us,  all  of  which  have  been  settled  or  dismissed.  The  outcome  of  litigation, 
particularly class action lawsuits, regulatory actions and intellectual property claims, is difficult to assess or quantify. Plaintiffs 
in these types of lawsuits may seek recovery of very large or indeterminate amounts, and the magnitude of the potential loss 
relating to these lawsuits may remain unknown for substantial periods of time. In addition, certain of these lawsuits, if decided 
against  us  or  settled  by  us,  may  result  in  liability  material  to  our  Consolidated  Financial  Statements  as  a  whole  or  may 
negatively affect our operating results if changes to our business operation are required. The cost to defend litigation may be 
significant. There also may be adverse publicity associated with litigation that could negatively affect customer perception of 
our business, regardless of whether the allegations are valid or whether we are ultimately found liable. As a result, litigation 
may adversely affect our business, financial condition, results of operations or liquidity.

We may be exposed to employment-related claims and losses which could have an adverse effect on our business.

As we continue to increase the size of our workforce, the risk of potential employment-related claims will also increase. As 
such, we may be subject to claims, allegations or legal proceedings related to employment matters including, but not limited to, 
discrimination, harassment (sexual or otherwise), wrongful termination or retaliation, local, state or federal labor law violations, 
injury,  and  wage  violations.  In  the  event  we  are  subject  to  one  or  more  employment-related  claims,  allegations  or  legal 
proceedings,  we  may  incur  substantial  costs,  losses  or  other  liabilities  in  the  defense,  investigation,  settlement  or  other 
disposition of such claims. In addition to the economic impact, we may also suffer reputational harm as a result of such claims, 
allegations  and  legal  proceedings  and  the  investigation,  defense  and  prosecution  of  such  claims,  allegations  and  legal 
proceedings  could  cause  substantial  disruption  in  our  business  and  operations.  While  we  do  have  policies  and  procedures  in 
place to reduce our exposure to these risks, there can be no assurance that such policies and procedures will be effective or that 
we will not be exposed to such claims, allegations or legal proceedings.

Item 1B.    UNRESOLVED STAFF COMMENTS

None.

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Item 2.    PROPERTIES

The following table contains information about our current significant leased properties as of December 31, 2020. 

Location

Philadelphia, Pennsylvania, U.S. (2)
Cranbury, New Jersey, U.S. (2)

Marlow, United Kingdom
Princeton, New Jersey, U.S.

Approximate
Square Feet

Use

Lease expiry date (1)

50,816  Office and laboratory

September 2044

90,000  Office and laboratory March 2021

36,796  Office

21,922  Office

August 2028

January 2022

______________________________
(1) Includes renewal options on leases which we are reasonably certain to exercise.
(2) On February 1, 2021, we changed our global headquarters from Cranbury, NJ to Philadelphia, PA.

In  addition  to  the  above,  we  also  maintain  offices  in  other  U.S.  and  international  jurisdictions  in  which  we  operate.  We 
believe  that  our  current  office  and  laboratory  facilities  are  adequate  and  suitable  for  our  current  and  anticipated  needs.  We 
believe that, to the extent required, we will be able to lease or buy additional facilities at commercially reasonable rates.

Item 3.    LEGAL PROCEEDINGS

We are not currently a party to any material legal proceedings.

Item 4.    MINE SAFETY DISCLOSURES

None.

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Item 5.    MARKET FOR THE REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS, 
AND ISSUER PURCHASES OF EQUITY SECURITIES

PART II

Market for Our Common Stock

Our common stock has been traded on the NASDAQ Global Market under the symbol "FOLD" since May 31, 2007. Prior 
to  that  time,  there  was  no  public  market  for  our  common  stock.  The  closing  price  for  our  common  stock  as  reported  by  the 
NASDAQ Global Market on February 19, 2021 was $12.22 per share. As of February 19, 2021, there were 21 holders of record 
of our common stock.

Dividends

We have never declared or paid any dividends on our capital stock. We currently intend to retain any future earnings to 
finance the development and growth of our business. We do not intend to declare or pay cash dividends to our stockholders in 
the foreseeable future.

Recent Sales of Unregistered Securities

We  did  not  sell  any  equity  securities  during  the  fiscal  year  ended  December  31,  2020  in  transactions  that  were  not 

registered under the Securities Act.

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Performance Graph

The  following  performance  graph  compares  the  cumulative  total  return  on  our  common  stock  during  the  last  five  fiscal 
years with the NASDAQ Composite Index (U.S.) and the NASDAQ Biotechnology Index during the same period. The graph 
shows the value at the end of each of the last five fiscal years, of $100 invested in our common stock. Pursuant to applicable 
SEC rules, all values assume reinvestment of the full amount of all dividends, however no dividends have been declared on our 
common stock to date. The stockholder return shown on the graph below is not necessarily indicative of future performance, 
and we do not make or endorse any predictions as to future stockholder returns.

12/31/2015

12/31/2016

12/31/2017

12/31/2018

12/31/2019

12/31/2020

Amicus Therapeutics, Inc.

NASDAQ Composite

NASDAQ Biotechnology

$100

$100

$100

$51

$108

$78

$148

$138

$95

$99

$133

$86

$100

$179

$107

$238

$257

$134

The stock price performance included in this graph is not necessarily indicative of future stock price performance.

Issuer Purchases of Equity Securities

The following table provides certain information with respect to purchase of our common stock during the three months 

ended December 31, 2020:

Period

October 1, 2020 through October 31, 2020

November 1, 2020 through November 30, 2020

December 1, 2020 through December 31, 2020

Total

Total Number 
of Shares 
Purchased (1)

Average 
Price Paid 
per Share

11,654  $ 

3,632  $ 

10,306  $ 

25,592  $ 

15.98 

21.75 

23.80 

19.95 

Total Number of 
Shares Purchased as 
Part of Publicly 
Announced Plans or 
Programs

Maximum Number (or 
Approximate Dollar Value) 
of Shares That May Yet Be 
Purchased Under the Plans 
or Programs

— 

— 

— 

— 

— 

— 

— 

— 

______________________________
(1) Represents shares of common stock withheld to satisfy taxes associated with the vesting of restricted stock awards.

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Amicus Therapeutics, Inc.NASDAQ CompositeNASDAQ Biotechnology12/31/201512/31/201612/31/201712/31/201812/31/201912/31/2020050100150200250300 
 
 
 
 
 
 
 
 
 
 
 
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Item 6.    SELECTED FINANCIAL DATA

Statement of Operations Data (in thousands except share and per share data)

Net product sales

Cost of goods sold

Gross profit

Operating expenses:

Research and development

Selling, general, and administrative

Changes in fair value of contingent consideration payable

Loss on impairment of assets

Restructuring charges

Depreciation and amortization

Total operating expenses

Loss from operations

Other income (expense):

Interest income

Interest expense

Loss on exchange of convertible notes

Loss on extinguishment of debt

Change in fair value of derivatives

Other (expense) income 

Loss before income tax

Income tax (expense) benefit

2020

2019

2018

2017

2016

Years Ended December 31,

$ 

260,886  $ 

182,237  $ 

91,245  $ 

36,930 

$ 

31,044 

229,842 

308,443 

156,407 

3,144 

— 

— 

8,846 

476,840 

21,963 

160,274 

286,378 

169,861 

3,297 

— 

— 

4,775 

464,311 

14,404 

76,841 

270,902 

127,200 

3,300 

— 

— 

4,216 

405,618 

(246,998) 

(304,037) 

(328,777) 

3,226 

(22,425) 

— 

(7,276) 

— 

(781) 

(274,254) 

(2,598) 

10,249 

(18,872) 

(40,624) 

— 

— 

(2,626) 

(355,910) 

(478) 

10,461 

(22,402) 

— 

— 

(2,739) 

(5,632) 

(349,089) 

94 

6,236 

30,694 

149,310 

88,671 

(234,322) 

465,427 

— 

3,593 

472,679 

(441,985) 

4,096 

(17,240) 
— 
— 
— 
6,008 

(449,121) 

165,119 

4,958 

833 

4,125 

104,793 

71,151 

6,760 

— 

69 

3,242 

186,015 

(181,890) 

1,602 

(5,398) 

— 

(13,302) 

— 

(4,793) 

(203,781) 

3,739 

Net loss attributable to common stockholders

Net loss attributable to common stockholders per common 
share — basic and diluted

Weighted-average common shares outstanding — basic and 

$ 

$ 

(276,852)  $ 

(356,388)  $ 

(348,995)  $ 

(284,002)  $ 

(200,042) 

(1.07)  $ 

(1.48)  $ 

(1.88)  $ 

(1.85)  $ 

(1.49) 

diluted

258,867,380 

240,421,001 

185,790,021 

153,355,144 

134,401,588 

Balance Sheet Data (in thousands)

Cash, cash equivalents, and marketable 

securities

Working capital

Total assets

Total liabilities

Accumulated deficit

Total stockholders' equity

2020

2019

2018

2017

2016

As of December 31,

$ 

483,269  $ 

452,740  $ 

504,152  $ 

358,562  $ 

449,793 

886,520 

600,140 

391,261 

850,207 

373,782 

464,971 

789,951 

447,039 

321,925 

627,024 

274,174 

(2,045,462) 

(1,768,610) 

(1,412,222) 

(1,063,610) 

286,380 

476,425 

342,912 

352,850 

330,351 

229,105 

1,036,845 

676,694 

(779,608) 

360,151 

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Item 7.    MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF 
OPERATIONS

Overview

We  are  a  global,  patient-dedicated  biotechnology  company  focused  on  discovering,  developing,  and  delivering  novel 
medicines for rare diseases. We have a portfolio of product opportunities led by the first, oral monotherapy for Fabry disease 
that has achieved widespread global approval, a differentiated biologic for Pompe disease, and an industry leading rare disease 
gene therapy portfolio.

The cornerstone of our portfolio is Galafold® (also referred to as "migalastat"), the first and only approved oral precision 
medicine for people living with Fabry disease who have amenable genetic variants. Migalastat is currently approved under the 
trade  name  Galafold®  in  the  United  States  ("U.S."),  European  Union  ("E.U."),  United  Kingdom  ("U.K."),  and  Japan,  with 
multiple additional approvals granted and applications pending in several geographies around the world. 

The lead biologics program of our pipeline is Amicus Therapeutics GAA ("AT-GAA", also known as ATB200/AT2221, or 
cipaglucosidase  alfa/miglustat),  a  novel,  clinical-stage,  potential  best-in-class  treatment  paradigm  for  Pompe  disease.  In 
February 2019, the U.S. Food and Drug Administration ("FDA") granted Breakthrough Therapy designation ("BTD") to AT-
GAA for the treatment of late onset Pompe disease. We initiated the rolling Biologic License Application ("BLA") submission 
to the FDA in the fourth quarter of 2020. 

We  initiated  ATB200-03  (or  "PROPEL"),  a  global  Phase  3  clinical  study  of  AT-GAA  in  adult  patients  with  late  onset 
Pompe  disease  in  December  2018  and  completed  last  patient,  last  visit  in  December  2020.  In  February  2021,  we  reported 
topline results from the Phase 3 PROPEL study.

Patients enrolled in PROPEL were randomized 2:1 so that for every two patients randomized to be treated with AT-GAA, 
one  was  randomized  to  be  treated  with  alglucosidase  alfa.  Of  the  Pompe  patients  enrolled,  77%  were  being  treated  with 
alglucosidase alfa (n=95) immediately prior to enrollment (“Switch”) and 23% had never been treated with any  ERT (n=28) 
(“Naïve”). 117 patients completed the PROPEL study and all 117 voluntarily enrolled in the long-term extension study.

The  primary  endpoint  of  the  study  was  the  mean  change  in  6-minute  walk  distance  as  compared  with  baseline 
measurements at 52 weeks across the combined ERT Switch and ERT Naïve patient populations. In this combined population 
patients taking AT-GAA (n=85) walked on average 21 meters farther at 52 weeks compared to 7 meters with those treated with 
alglucosidase  alfa  (n=37).  This  primary  endpoint  in  the  combined  population  was  assessed  for  superiority  and  while 
numerically greater, statistical significance for superiority on this combined population was not achieved for the AT-GAA arm 
as compared to the alglucosidase alfa arm (p=0.072).

Per  the  hierarchy  of  the  statistical  analysis  plan,  the  first  key  secondary  endpoint  of  the  study  was  the  mean  change  in 
percent-predicted  Forced  Vital  Capacity  (“FVC”)  at  52  weeks  across  the  combined  population.  In  this  combined  population 
patients taking AT-GAA demonstrated a nominally statistically significant and clinically meaningful difference for superiority 
over  those  treated  with  alglucosidase  alfa.  AT-GAA  significantly  slowed  the  rate  of  respiratory  decline  in  patients  after  52 
weeks. Patients treated with AT-GAA showed a 0.9% absolute decline in percent-predicted FVC, compared to a 4.0% absolute 
decline in the alglucosidase alfa arm (p=0.023). 

Patients  within  the  combined  study  population  demonstrated  statistically  significant  improvements  on  the  GSGC  (“Gait, 
Stairs, Gower’s Chair”) key secondary endpoint, which captures strength, coordination and mobility, compared to a worsening 
for alglucosidase alfa treated patients in the overall population (p<0.05). Additionally, lower MMT (Manual Muscle Testing), 
Patient-Reported Outcomes Measurement Information System (“PROMIS”) physical function and PROMIS fatigue secondary 
endpoints favored AT-GAA treated patients over alglucosidase alfa treated patients. Results also showed improvements in the 
two  important  biomarker  endpoints  of  Pompe  disease  (Hex-4  and  CK),  which  significantly  favored  AT-GAA  compared  to 
alglucosidase alfa (p<0.001). AT-GAA demonstrated a similar safety profile to alglucosidase alfa. 

The PROPEL Switch patients entered the study having been treated with alglucosidase alfa for a minimum of two years. 
More  than  two  thirds  (67%+)  of  those  patients  had  been  on  ERT  treatment  for  more  than  five  years  prior  to  entering  the 
PROPEL study (mean of 7.4 years). A pre-specified analysis of the patients switching from alglucosidase alfa on 6-minute walk 

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distance  showed  that  after  52  weeks  from  switching,  AT-GAA  treated  patients  (n=65)  walked  16.9  meters  farther  than  their 
baseline, compared to 0.0 meters for those patients who were randomized to remain on alglucosidase alfa (n=30) (p=0.046).

A pre-specified analysis of the patients switching from alglucosidase alfa on percent-predicted FVC showed that AT-GAA 
treated  patients  stabilized  and  slightly  improved  their  respiratory  function  on  this  important  measure  while  those  patients 
remaining on alglucosidase alfa continued to significantly decline in respiratory muscle function. AT-GAA patients showed a 
0.1% absolute increase in percent-predicted FVC while the alglucosidase alfa patients showed a 4.0% absolute decline over the 
course of the year (p=0.006).

The PROPEL Naïve patients treated with AT-GAA for 52 weeks (n=20) walked 33 meters farther than their baseline, on 
the 6-minute walk distance endpoint. The Naïve patients treated with alglucosidase alfa (n=7) walked 38 meters further than 
their  baseline.  The  difference  between  the  two  groups  was  not  statistically  significant  (p=0.60).  Additionally,  patients  never 
previously treated with any ERT showed similar declines in percent-predicted FVC at 52 weeks of –4.1% for AT-GAA treated 
patients  and  –3.6%  for  alglucosidase  alpha  treated  patients.  The  difference  between  the  two  groups  was  not  statistically 
significant (p=0.57). 

We have established an industry leading gene therapy portfolio of potential therapies for people living with rare metabolic 
diseases, through a license with Nationwide Children's Hospital ("Nationwide Children’s") and an expanded collaboration with 
the University of Pennsylvania ("Penn"). Our pipeline includes gene therapy programs in rare, neurologic lysosomal disorders 
("LDs"),  specifically:  CLN6,  CLN3,  and  CLN1  Batten  disease,  Pompe  disease,  Fabry  disease,  CDKL5  deficiency  disorder 
("CDD"),  Mucopolysaccharidosis  Type  IIIB  ("MPS  IIIB"),  as  well  as  a  next  generation  program  in  Mucopolysaccharidosis 
Type IIIA ("MPS IIIA"). Our expanded collaboration with Penn also provides us with exclusive disease-specific access and the 
option  rights  to  develop  potentially  disruptive  new  gene  therapy  platform  technologies  and  programs  for  most  LDs  and  a 
broader  portfolio  of  more  prevalent  rare  diseases,  including  Rett  Syndrome,  Angelman  Syndrome,  Myotonic  Dystrophy,  and 
select  other  muscular  dystrophies.  In  the  first  quarter  of  2020,  the  FDA  granted  Fast  Track  designation  to  the  CLN3  Batten 
disease gene therapy, AT-GTX-502, for the treatment of pediatric patients less than 18 years of age. In September 2020 and 
February 2021, the European Medicines Agency granted Priority Medicines ("PRIME") designation and the FDA granted Fast 
Track  Designation,  respectively,  to  the  CLN6  Batten  disease  gene  therapy,  AT-GTX-501,  for  the  treatment  of  patients  with 
variant late infantile neuronal ceroid lipofuscinosis 6 ("vLINCL6").

In  July  2020,  we  entered  into  a  definitive  agreement  for  a  $400  million  credit  facility  with  Hayfin  Capital  Management 
(“Senior Secured Term Loan due 2026”) with an interest rate equal to 3-month LIBOR, subject to a 1% floor, plus 6.5% per 
annum  and  requires  interest-only  payments  until  mid-2024  and  matures  in  six  years  in  2026.  This  transaction  resulted  in  net 
proceeds of $385.9 million, after deducting fees and expenses. There were no warrants or equity conversion features associated 
with the Senior Secured Term Loan due 2026. Additionally, we used $156.3 million of the proceeds to voluntarily settle the 
principal  amount,  accrued  interest,  and  early  settlement  premiums  of  the  Senior  Secured  Term  Loan  with  BioPharma  Credit 
PLC that was due in 2023 ("Senior Secured Term Loan due 2023"). 

Our  operations  have  not  been  significantly  impacted  from  the  novel  coronavirus  (“COVID-19”)  pandemic  in  2020; 
however,  we  observed  increased  lag  times  between  patient  identification  and  Galafold®  initiation  due  to  the  resurgence  of 
COVID-19  in  the  fourth  quarter.  We  have  maintained  operations  in  all  geographies,  secured  our  global  supply  chain  for  our 
commercial  and  clinical  products,  as  well  as  maintained  the  operational  integrity  of  our  clinical  trials,  with  minimum 
disruptions. Our ability to continue to operate without any significant disruptions will depend on the continued health of our 
employees, the ongoing demand for Galafold® and the continued operation of our global supply chain. We have continued to 
provide uninterrupted access to medicines for those in need of treatment, while prioritizing the health and safety of our global 
workforce. However, our results of operations in future periods may be negatively impacted by unknown future impacts from 
the COVID-19 pandemic.

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Consolidated Results of Operations

The  following  section  generally  discusses  2020  and  2019  items  and  year-to-year  comparisons  between  2020  and  2019. 
Discussions of 2018 items and year-to-year comparisons between 2019 and 2018 that are not included in this Form 10-K can be 
found in Part II, Item 7 of the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019, which 
comparisons are hereby incorporated by reference.

Year Ended December 31, 2020 Compared to Year Ended December 31, 2019 

The following table provides selected financial information for the Company:

(in thousands)

Net product sales

Cost of goods sold

Cost of goods sold as a percentage of net product sales

Operating expenses:

Research and development

Selling, general, and administrative

Changes in fair value of contingent consideration payable

Depreciation and amortization

Other income (expense):

Interest income

Interest expense

Loss on exchange of convertible notes

Loss on extinguishment of debt

Other expense

Income tax expense

Years Ended December 31,

2020

2019

Change

$ 

260,886 

$ 

182,237 

$ 

78,649 

31,044 

 11.9 %

21,963 

 12.1 %

9,081 

 (0.2) %

308,443 

156,407 
3,144 

8,846 

3,226 

(22,425) 

— 

(7,276) 

(781) 

(2,598) 

286,378 

169,861 
3,297 

4,775 

10,249 

(18,872) 

(40,624) 

— 

(2,626) 

(478) 

22,065 

(13,454) 

(153) 

4,071 

(7,023) 

(3,553) 

40,624 

(7,276) 

1,845 

(2,120) 

Net loss attributable to common stockholders

$ 

(276,852) 

$ 

(356,388) 

$ 

79,536 

Net Product Sales. Net product sales increased $78.6 million during the year ended December 31, 2020 compared to the 

same period in the prior year. The increase was primarily due to continued growth in the Europe, U.S. and Japan markets.

Cost  of  Goods  Sold.  Cost  of  goods  sold  includes  manufacturing  costs  as  well  as  royalties  associated  with  sales  of  our 
product. Cost of goods sold as a percentage of net product sales was 11.9% during the year ended December 31, 2020 compared 
to 12.1% during the same period in the prior year primarily due to the proportion of sales in countries subject to a higher royalty 
burden.

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Research and Development Expense. The following table summarizes our principal product development programs for each 

product candidate in development, and the out-of-pocket, third-party expenses incurred with respect to each product candidate:

(in thousands)
Projects
Third-party direct project expenses

Galafold® (Fabry Disease)
AT-GAA (Pompe Disease)

Gene therapy programs

Pre-clinical and other programs

Total third-party direct project expenses

Other project costs

Personnel costs

Other costs

Total other project costs

Total research and development costs

Years Ended December 31,

2020

2019

$ 

12,399  $ 

112,733 

64,834 

2,381 

192,347 

84,607 

31,489 

116,096 

$ 

308,443  $ 

19,598 

103,884 

39,836 

1,915 

165,233 

1

81,496 

39,649 

121,145 

286,378 

The  $22.1  million  increase  in  research  and  development  costs  was  primarily  due  to  increases  in  gene  therapy  programs 
driven by the pipeline growth, and clinical research and manufacturing costs with the advancement and enrollment of clinical 
studies in the Pompe program, and an increase in personnel costs primarily due to realignment with strategic priorities. These 
increases were partially offset by a decrease in expense associated with the ongoing regulatory requirements, approval in new 
geographies, and pediatric and other studies to support label expansion of Galafold® and a decrease in other costs, primarily 
driven by reduced employee travel and professional fees.

Selling, General, and Administrative Expense. Selling, general, and administrative expense decreased $13.5 million, mainly 

driven by reduction in third-party professional fees and travel.

Depreciation and Amortization. Depreciation and Amortization increased $4.1 million during the year ended December 31, 
2020.  The  increase  was  primarily  due  to  the  increase  in  fixed  assets  put  in  service  in  the  fourth  quarter  of  2019  for  the 
Philadelphia office. 

Interest  Income.  Interest  income  decreased  $7.0  million  during  the  year  ended  December  31,  2020.  The  decrease  was 
primarily  due  to  a  lower  average  overall  cash  and  investment  balance  on  December  31,  2020  as  compared  to  December  31, 
2019 and reduced interest rates.

Interest  Expense.  Interest  expense  increased  $3.6  million  during  the  year  ended  December  31,  2020.  The  increase  was 

driven by the $400 million Senior Secured Loan due 2026 in July 2020. 

Loss on Exchange of Convertible Notes. During the first and second quarters of 2019, the Company entered into separate, 
privately  negotiated  Exchange  Agreements  with  a  limited  number  of  holders  of  the  Convertible  Notes.  As  a  result  of  this 
exchange, the Company recognized a loss on exchange of debt of $40.6 million in the Consolidated Statements of Operations.

Loss on Extinguishment of Debt. In July 2020, the Company voluntarily settled the principal amount, accrued interest, and 
early  settlement  premiums  of  the  Senior  Secured  Term  Loan  due  2023.  As  a  result  of  this  early  extinguishment,  a  loss  on 
extinguishment of debt of $7.3 million was recognized in the Consolidated Statements of Operations. 

Income Tax Expense. The income tax expense for the year ended December 31, 2020 was $2.6 million. We are subject to 
income taxes in various jurisdictions. Our tax liabilities are largely dependent on the distributions of pre-tax earnings among the 
many jurisdictions in which we operate.

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Critical Accounting Policies and Significant Judgments and Estimates

The  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  are  based  on  our  financial  statements, 
which we have prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP"). The preparation of 
these  financial  statements  requires  us  to  make  estimates  and  assumptions  that  affect  the  reported  amounts  of  assets  and 
liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported 
revenues and expenses during the reporting periods. On an ongoing basis, we evaluate our estimates and judgments, including 
those  described  in  greater  detail  below.  We  base  our  estimates  on  historical  experience  and  on  various  other  factors  that  we 
believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying 
value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates 
under different assumptions or conditions. We believe that the following discussion represents our critical accounting policies.

Revenue Recognition

Our net product sales consist of sales of Galafold®

 for the treatment of Fabry disease. We have recorded revenue on sales 
 is available either on a commercial basis or through a reimbursed early access program ("EAP"). Orders for 

 are generally received from distributors and pharmacies with the ultimate payor often a government authority.

where Galafold®
Galafold®

We recognize revenue when our performance obligation with our customers have been satisfied, which occurs at a point 
in time when the pharmacies or distributors obtain control of Galafold®. The transaction price is determined based on fixed 
consideration  in  our  customer  contracts  and  is  recorded  net  of  estimates  for  variable  consideration,  which  are  third-party 
discounts and rebates. The identified variable consideration is recorded as a reduction of revenue at the time revenue from sale 
of Galafold®
 is recognized. We recognize revenue to the extent that it is probable that a significant revenue reversal will not 
occur  in  a  future  period.  These  estimates  may  differ  from  actual  consideration  received.  We  evaluate  these  estimates  each 
reporting period to reflect known changes.

We  elected  the  portfolio  approach  practical  expedient  in  applying  ASC  Topic  606,  Revenue  from  Contracts  with 
Customers, to our identified revenue streams. Contracts within each revenue stream have similar characteristics and we believe 
the results of this approach would not differ materially than if we applied ASC Topic 606 to each individual contract.

  Leases

The Company primarily enters into lease agreements for office space, equipment, and vehicles. The leases have varying 
terms, some of which could include options to renew, extend, and early terminate. The Company determines if an arrangement 
is  a  lease  at  contract  inception.  Operating  leases  are  included  in  right-of-use  ("ROU")  assets  and  lease  liabilities  on  the 
Consolidated Balance Sheets.

ROU assets represent the Company's right to control the use of an explicitly or implicitly identified fixed asset for a period 
of time and lease liabilities represent the Company's obligation to make lease payments arising from the lease. Control of an 
underlying asset is conveyed to the Company if the Company obtains the rights to direct the use of and to obtain substantially 
all of the economic benefits from using the underlying asset. ROU assets and liabilities are recognized at commencement date 
based on the present value of lease payments over the lease term. The Company uses its incremental borrowing rate based on 
the information available at commencement date in determining the present value of lease payments.

Lease  payments  included  in  the  measurement  of  the  lease  liability  are  comprised  of  fixed  payments.  Variable  lease 
payments are excluded from the ROU asset and lease liability and are recognized in the period in which the obligation for those 
payments is incurred. Variable lease payments are presented in the Consolidated Statements of Operations in the same line item 
as expenses arising from fixed lease payments for operating leases. The Company has lease agreements that include lease and 
non-lease components, which the Company accounts for as a single lease component for all underlying asset categories.

The lease term for all of the Company's leases include the non-cancellable period of the lease plus any additional periods 
covered by either a Company option to extend (or not to terminate) the lease that the Company is reasonably certain to exercise, 
or an option to extend (or not to terminate) the lease controlled by the lessor.

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Leases  with  an  initial  term  of  12  months  or  less  are  not  recorded  on  the  Consolidated  Balance  Sheets.  The  Company 
recognizes lease expense for these leases on a straight-line basis over the lease term. The Company applies this policy to all 
underlying asset categories.

The  information  presented  for  the  periods  prior  to  January  1,  2019  has  not  been  restated  and  is  reported  under  the 

accounting standard in effect for those periods. 

Research and Development Expenses

We  expect  to  continue  to  incur  substantial  research  and  development  expenses  as  we  continue  to  develop  our  product 

candidates. Research and development expense consists of:

•

•

•

•

•

•

•

•

internal costs associated with our research and clinical development activities;

fees owed to third-party contract research organizations in connection with preclinical, toxicology studies and 
clinical trials;

payments  we  make  to  contract  manufacturers,  investigative  sites,  and  consultants  in  connection  with  clinical 
trials;

technology license costs;

manufacturing development costs;

personnel-related expenses, including salaries, benefits, travel, and related costs for the personnel involved in 
drug discovery and development;

activities  relating  to  regulatory  filings  and  the  advancement  of  our  product  candidates  through  preclinical 
studies and clinical trials; and

facilities  and  other  allocated  expenses,  which  include  direct  and  allocated  expenses  for  rent,  facility 
maintenance, as well as laboratory and other supplies.

We  have  multiple  research  and  development  projects  ongoing  at  any  one  time.  We  utilize  our  internal  resources, 
employees, and infrastructure across multiple projects. We record and maintain information regarding external, out-of-pocket 
research and development expenses on a project-specific basis.

We expense research and development costs as incurred, including payments made to date under our license agreements. 
We believe that significant investment in product development is a competitive necessity and plan to continue these investments 
in order to realize the potential of our product candidates.

The successful development of our product candidates is highly uncertain. At this time, we cannot reasonably estimate or 
know the nature, timing, and costs of the efforts that will be necessary to complete the remainder of the development of our 
product candidates. As a result, we are not able to reasonably estimate the period, if any, in which material net cash inflows 
may commence from our product candidates. This uncertainty is due to the numerous risks and uncertainties associated with the 
conduct, duration, and cost of clinical trials, which vary significantly over the life of a project as a result of evolving events 
during clinical development, including:

•

•

•

•

•

the number of clinical sites included in the trials;

the length of time required to enroll suitable patients;

the number of patients that ultimately participate in the trials;

the results of our clinical trials; and

any  mandate  by  the  FDA  or  other  regulatory  authority  to  conduct  clinical  trials  beyond  those  currently 
anticipated.

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Our  expenditures  are  subject  to  additional  uncertainties,  including  the  terms  and  timing  of  regulatory  approvals,  and  the 
expense of filing, prosecuting, defending, and enforcing any patent claims or other intellectual property rights. We may obtain 
unexpected  results  from  our  clinical  trials.  We  may  elect  to  discontinue,  delay,  or  modify  clinical  trials  of  some  product 
candidates or focus on others. A change in the outcome of any of the foregoing variables with respect to the development of a 
product  candidate  could  mean  a  significant  change  in  the  costs  and  timing  associated  with  the  development,  regulatory 
approval,  and  commercialization  of  that  product  candidate.  For  example,  if  the  FDA  or  other  regulatory  authorities  were  to 
require  us  to  conduct  clinical  trials  beyond  those  which  we  currently  anticipate,  or  if  we  experience  significant  delays  in 
enrollment in any of our clinical trials, we could be required to expend significant additional financial resources and time on the 
completion of clinical development. Drug development takes several years and millions of dollars in development costs.

Share-based Compensation

Stock Option Grants

In accordance with the applicable accounting guidance, we estimate the fair value of each equity award granted. We chose 
the "straight-line" attribution method for allocating compensation costs and recognized the fair value of each stock option on a 
straight-line basis over the vesting period of the related awards.

We use the Black-Scholes option pricing model when estimating the grant date fair value for stock-based awards. Use of a 
valuation model requires management to make certain assumptions with respect to selected model inputs. Expected volatility 
was  based  on  our  historical  volatility  since  our  initial  public  offering  in  May  2007.  We  determine  the  average  expected  life 
using our actual historical data. The risk-free interest rate is based on U.S. Treasury, zero-coupon issues with a remaining term 
equal to the expected life assumed at the date of grant. Forfeitures are estimated based on historical analysis of actual option 
forfeitures.

Restricted Stock Units and Performance-Based Restricted Stock Units (collectively "RSUs")

RSUs  awarded  under  the  plan  are  generally  subject  to  graded  vesting  and  are  contingent  on  an  employee's  continued 
service  on  such  date.  RSUs  are  generally  subject  to  forfeiture  if  employment  terminates  prior  to  the  release  of  vesting 
restrictions. We expense the cost of the RSUs, which is determined to be the fair market value of the shares of common stock 
underlying the RSUs at the date of grant, ratably over the period during which the vesting restrictions lapse. In addition, certain 
of our share-based awards are market- and performance-based and dependent upon achieving certain goals. The related share-
based compensation expense is determined based on the estimated fair value of the underlying shares on the date of grant and is 
recognized on a straight-line basis over the vesting term. With respect to performance-based awards, we estimate the probability 
that the performance conditions will be achieved. 

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Business Combinations

We assign fair value to the tangible and intangible assets acquired and liabilities assumed based upon their estimated fair 
values  on  the  acquisition  date  of  acquired  businesses.  The  purchase  price  allocation  process  requires  management  to  make 
significant estimates and assumptions, especially at the acquisition date with respect to intangible assets and in-process research 
and development ("IPR&D"). In connection with the purchase price allocations for acquisitions, we estimate the fair value of 
contingent acquisition consideration payments utilizing a probability-based income approach inclusive of an estimated discount 
rate.

Although we believe the assumptions and estimates made are reasonable, they are based in part on historical experience 
and information obtained from the management of the acquired businesses and are inherently uncertain. Examples of critical 
estimates in valuing any contingent acquisition consideration issued or which may be issued and the intangible assets we have 
acquired or may acquire in the future include but are not limited to:

•

•

•

the feasibility and timing of achievement of development, regulatory, and commercial milestones;

expected costs to develop the in-process research and development into commercially viable products; and

future expected cash flows from product sales.

Unanticipated  events  and  circumstances  may  occur  which  may  affect  the  accuracy  or  validity  of  such  assumptions, 

estimates, or actual results.

Intangible Assets and Goodwill

We record goodwill in a business combination when the total consideration exceeds the fair value of the net tangible and 
identifiable intangible assets acquired. Purchased in-process research and development is accounted for as an indefinite lived 
intangible asset until the underlying project is completed, at which point the intangible asset will be accounted for as a definite 
lived intangible asset, or abandoned, at which point the intangible asset will be written off or partially impaired. Goodwill and 
indefinite  lived  intangible  assets  are  assessed  annually  for  impairment  on  October  1  and  whenever  events  or  circumstances 
indicate that the carrying amount of an asset may not be recoverable. If it is determined that the full carrying amount of an asset 
is  not  recoverable,  an  impairment  loss  is  recorded  in  the  amount  by  which  the  carrying  amount  of  the  asset  exceeds  its  fair 
value. No indicators of impairment were noted during the years ended December 31, 2020 and December 31, 2019.

Valuation of Contingent Consideration Payable

Contingent  consideration  payments  in  asset  acquisitions  are  recognized  when  the  contingency  is  resolved  and  the 
consideration is paid or becomes payable. This does not apply in circumstances when the contingent consideration meets the 
definition of a derivative, in which case the amount becomes part of the basis in the asset acquired. Upon recognition of the 
contingent consideration payment, the amount is included in the cost of the acquired asset or group of assets. Each period we 
reassess  the  fair  value  of  the  contingent  acquisition  consideration  payable  associated  with  certain  acquisitions  and  record 
changes  in  the  fair  value  as  contingent  consideration  expense.  Increases  or  decreases  in  the  fair  value  of  the  contingent 
acquisition  consideration  payable  can  result  from  changes  in  estimated  probability  adjustments  with  respect  to  regulatory 
approval, changes in the assumed timing of when milestones are likely to be achieved and changes in assumed discount periods 
and rates. Significant judgment is employed in determining the appropriateness of these assumptions each period. Accordingly, 
future business and economic conditions, as well as changes in any of the assumptions described in the accounting for business 
combinations above can materially impact the amount of contingent consideration expense that we record in any given period.

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Liquidity and Capital Resources

As  a  result  of  our  significant  research  and  development  expenditures,  as  well  as  expenditures  to  build  a  commercial 
organization to support the launch of Galafold®, we have not been profitable and have generated operating losses since we were 
incorporated in 2002. We have historically funded our operations through stock offerings, debt issuances, Galafold® revenues, 
collaborations, and other financing arrangements.

Sources of Liquidity

In July 2020, we entered into the Senior Secured Term Loan due 2026. This transaction resulted in net proceeds of $385.9 
million,  after  deducting  fees  and  expenses.  There  were  no  warrants  or  equity  conversion  features  associated  with  the  Senior 
Secured Term Loan due 2026. Additionally, we used $156.3 million of the proceeds to voluntarily settle the principal amount, 
accrued interest, and early settlement premiums of the Senior Secured Term Loan due 2023. 

During the first and second quarters of 2019, we entered into separate, privately negotiated Exchange Agreements with a 
limited  number  of  holders  of  the  Convertible  Notes.  Under  the  terms  of  the  Exchange  Agreements,  the  limited  number  of 
holders agreed to exchange an aggregate principal amount of $247.2 million of Convertible Notes held by them in exchange for 
an aggregate of approximately 44.0 million shares of our common stock, par value $0.01 per share. Additionally, we terminated 
the Capped Call Confirmations related to the exchange of the Convertible Notes for cash proceeds of $19.9 million.

During  the  second  quarter  of  2019,  we  completed  an  underwritten  equity  offering  and  issued  18.7  million  shares  of 
common stock at $10.75 per share, inclusive of the fully exercised option to purchase additional shares from the initial offering. 
This transaction resulted in net proceeds of $189.0 million, after deducting underwriting discounts, commissions, and offering 
expenses.

Cash Flow Discussion

As of December 31, 2020, we had cash, cash equivalents, and marketable securities of $483.3 million. We invest cash in 
excess of our immediate requirements in regard to liquidity and capital preservation in a variety of interest-bearing instruments, 
including obligations of U.S. government agencies and money market accounts. Wherever possible, we seek to minimize the 
potential effects of concentration and degrees of risk. Although we maintain cash balances with financial institutions in excess 
of  insured  limits,  we  do  not  anticipate  any  losses  with  respect  to  such  cash  balances.  For  more  details  on  the  cash,  cash 
equivalents, and marketable securities, refer to "-Note 5. Cash, Cash Equivalents, Marketable Securities, and Restricted Cash," 
in our Notes to Consolidated Financial Statements.

Net Cash Used in Operating Activities

Net cash used in operations for the year ended December 31, 2020 was $233.3 million. The components of net cash used in 
operations included the net loss for the year ended December 31, 2020 of $276.9 million and the net change in operating assets 
and liabilities of $32.1 million. The change in operating assets was primarily due to increases in accounts receivable by $11.2 
million due to increased commercial sales of Galafold®, an increase in inventory of $4.6 million, and increase in prepaid and 
other current assets of $8.8 million to support commercial activities for Galafold® launch. The net cash used in operations was 
also impacted by a decrease in accounts payable and accrued expenses of $10.6 million, mainly related to program expenses 
and support for the commercial launch of Galafold®, and decrease in deferred reimbursement of $1.3 million.

Net cash used in operations for the year ended December 31, 2019 was $250.4 million. The components of net cash used in 
operations included the net loss for the year ended December 31, 2019 of $356.4 million, and the net change in operating assets 
and liabilities of $11.6 million. The change in operating assets was primarily due to increases in accounts receivable by $11.1 
million  due  to  increased  commercial  sales  of  Galafold®,  an  increase  in  prepaid  and  other  current  assets  of  $3.3  million  to 
support  commercial  activities  for  Galafold®  launch,  and  an  increase  in  inventory  of  $5.1  million.  The  net  cash  used  in 
operations  was  also  impacted  by  an  increase  in  accounts  payable  and  accrued  expenses  of  $46.7  million,  mainly  related  to 
program  expenses  and  support  for  the  commercial  launch  of  Galafold®.  This  was  partially  offset  by  a  decrease  in  deferred 
reimbursement of $5.5 million.

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Net Cash (Used in) Provided by Investing Activities

Net cash used in investing activities for the year ended December 31, 2020 was $13.6 million. Our investing activities have 
consisted  primarily  of  purchases,  sales,  and  maturities  of  investments  and  capital  expenditures.  Net  cash  used  in  investing 
activities reflects $365.2 million for the purchase of marketable securities and $3.2 million for capital expenditures, partially 
offset by $354.8 million for the sale and redemption of marketable securities.

Net cash provided by investing activities for the year ended December 31, 2019 was $95.2 million. Our investing activities 
have  consisted  primarily  of  purchases,  sales,  and  maturities  of  investments  and  capital  expenditures.  Net  cash  provided  by 
investing  activities  reflects  $499.0  million  for  the  sale  and  redemption  of  marketable  securities.  partially  offset  by  $383.9 
million for the purchase of marketable securities and $20.0 million for capital expenditures. 

Net Cash Provided by Financing Activities

Net cash provided by financing activities for the year ended December 31, 2020 was $262.9 million. Net cash provided by 
financing activities primarily reflects $385.9 million in proceeds from the Senior Secured Term Loan due 2026, net of issuance 
costs,  and  $42.3  million  from  the  exercise  of  stock  options.  This  was  partially  offset  by  $155.2  million  for  the  voluntary 
settlement of the Senior Secured Term Loan due 2023, and $10.0 million from the purchase of vested restricted stock units.

Net cash provided by financing activities for the year ended December 31, 2019 was $217.5 million. Net cash provided by 
financing  activities  primarily  reflects  $189.0  million  from  the  issuance  of  common  stock,  net  of  issuance  costs  paid,  $19.9 
million from termination of capped call and $12.3 million from the exercise of stock options and warrants, partially offset by 
$3.2 million from the purchase of vested restricted stock units.

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Funding Requirements

We  expect  to  incur  losses  from  operations  for  the  foreseeable  future  primarily  due  to  research  and  development  expenses, 
including expenses related to conducting clinical trials. Our future capital requirements will depend on a number of factors, 
including:

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

the scope, progress, results and costs of our clinical trials of our drug candidates and gene therapy candidates, 
including but not limited to AT-GAA, CLN6 and CLN3;

the  cost  of  manufacturing  drug  supply  for  our  clinical  and  preclinical  studies,  including  the  cost  of 
manufacturing Pompe Enzyme Replacement Therapy ("ERT" or "ATB200"or "cipaglucosidase alfa") and gene 
therapies;

the future results of on-going preclinical research and subsequent clinical trials for CDD, Pompe gene therapy, 
Fabry gene therapy, MPS IIIB, next generation MPS IIIA, and other pipeline candidates we may identify from 
time to time, including our ability to obtain regulatory approvals and commercialize these therapies and obtain 
market acceptance for such therapies;

the costs, timing, and outcome of regulatory review of our product candidates, including AT-GAA;

any changes in regulatory standards relating to the review of our product candidates;

the number and development requirements of other product candidates that we pursue;

the costs of commercialization activities, including product marketing, sales, and distribution;

the emergence of competing technologies and other adverse market developments;

our  ability  to  successfully  commercialize  Galafold®  ("migalastat  HCl")  and,  if  our  regulatory  filings  are 
accepted and approved, AT-GAA;

our ability to manufacture or supply sufficient clinical or commercial products, including Galafold®, AT-GAA 
and our gene therapy candidates;

our ability to obtain reimbursement for Galafold® and, if our regulatory filings are accepted and approved, AT-
GAA;

our  ability  to  satisfy  post-marketing  commitments  or  requirements  for  continued  regulatory  approval  of 
Galafold®;

our ability to obtain market acceptance of Galafold® and, if our regulatory filings are accepted and approved, 
AT-GAA;

the  costs  of  preparing,  filing,  and  prosecuting  patent  applications  and  maintaining,  enforcing,  and  defending 
intellectual property-related claims;

the extent to which we acquire or invest in businesses, products, and technologies;

our  ability  to  successfully  integrate  our  acquired  products  and  technologies  into  our  business,  including  the 
possibility that the expected benefits of the transactions will not be fully realized by us or may take longer to 
realize than expected; 

our  ability  to  establish  collaborations,  partnerships  or  other  similar  arrangements  and  to  obtain  milestone, 
royalty, or other payments from any such collaborators;

our ability to adjust to changes in the European and U.K. markets in the wake of the U.K. leaving the E.U.;

the extent to which our business could be adversely impacted by the effects of COVID-19 outbreak, including 
due  to  actions  by  us,  governments,  our  customers  or  suppliers  or  other  third  parties  to  control  the  spread  of 
COVID-19, or by other health epidemics or pandemics;

fluctuations in foreign currency exchange rates; and 

changes in accounting standards.

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While we continue to generate revenue from product sales, in the absence of additional funding, we expect our continuing 
operating  losses  to  result  in  increases  in  our  cash  used  in  operations  over  the  next  several  quarters  and  years.  We  may  seek 
additional funding through public or private financings of debt or equity. Based on current operating models, we believe that 
the current cash position, which includes the net proceeds from the Senior Secured Term Loan due 2026 and expected revenues 
is  sufficient  to  fund  our  operations  and  ongoing  research  programs  to  achieve  self-sustainability.  Potential  impacts  of  the 
COVID-19 pandemic, business development collaborations, pipeline expansion, and investment in manufacturing capabilities 
could impact our future capital requirements.

Financial Uncertainties Related to Potential Future Payments

Milestone Payments / Royalties

Celenex  -  In  connection  with  our  acquisition  of  Celenex  in  2018,  we  agreed  to  pay  up  to  an  additional  $10  million  in 
connection with the achievement of certain development milestones, $220 million in connection with the achievement of certain 
regulatory approval milestones across multiple programs and up to $75 million in tiered sales milestone payments.

Nationwide  Children’s  -  Celenex  has  an  exclusive  license  agreement  with  Nationwide  Children’s.  Under  this  license 
agreement, Nationwide Children’s is eligible to receive development and sales-based milestones of up to $7.8 million from us 
for each product.

Penn - Under our expanded collaboration agreement with Penn, Penn is eligible to receive certain milestone, royalty, and 
discovery research payments with respect to licensed products for each indication. Milestone payments are payable following 
the  achievement  of  certain  development  and  commercial  milestone  events  in  each  indication,  up  to  an  aggregate  of  $88.0 
million per indication. Royalty payments are based on net sales of licensed products on a licensed product-by-licensed product 
and country-by-country basis. We will provide $10.0 million each year during the five-year agreement to fund the discovery 
research program.

GlaxoSmithKline  -  In  July  2012,  as  amended  in  November  2013,  the  Company  entered  into  an  agreement  with 
GlaxoSmithKline  ("GSK"),  pursuant  to  which  Amicus  obtained  global  rights  to  develop  and  commercialize  Galafold®  as  a 
monotherapy  and  in  combination  with  ERT  for  Fabry  disease  (“Collaboration  Agreement”).  Under  the  terms  of  the 
Collaboration  Agreement,  GSK  is  eligible  to  receive  post-approval  and  sales-based  milestones  up  to  $40  million,  as  well  as 
tiered royalties in the mid-teens in eight major markets outside the U.S. 

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Contractual Obligations

The  following  table  summarizes  our  significant  contractual  obligations  and  commercial  commitments  at  December  31, 

2020 and the effects such obligations are expected to have on our liquidity and cash flows in future periods:

(in thousands)
Operating lease obligations (2)
Debt obligations, including interest (3)
Purchase obligations (4)
Total fixed contractual obligations (1)

Total

Less than 
1 year

1-3 years

3-5 years

Over 5 years

$ 

195,750  $ 

8,549  $ 

17,185  $ 

16,775  $ 

153,241 

543,670 

30,502 

63,825 

311,500 

137,843 

41,154  $ 

41,154  $ 

—  $ 

—  $ 

— 

780,574  $ 

80,205  $ 

81,010  $ 

328,275  $ 

291,084 

$ 

$ 

______________________________
(1) This table does not include (a) any milestone payments which may become payable to third parties under license agreements as the 
timing  and  likelihood  of  such  payments  are  not  known,  (b)  any  royalty  payments  to  third  parties  as  the  amounts  of  such  payments, 
timing,  and/or  the  likelihood  of  such  payments  are  not  known,  (c)  amounts,  if  any,  that  may  be  committed  in  the  future  to  construct 
additional facilities, (d) agreements with clinical research organizations and other outside contractors who are partially responsible for 
conducting and monitoring our clinical trials for our drug candidates including Galafold®. These contractual obligations are not reflected 
in  the  table  above  because  we  may  terminate  them  without  penalty,  and  (e)  contracts  that  are  entered  into  in  the  ordinary  course  of 
business which are not material in the aggregate in any period presented above.
(2) Represents the future payments on operating leases for properties, equipment, and vehicles. For more details, refer to "— Note 13. 
Leases," in our Notes to Consolidated Financial Statements.
(3) Represents the future payments of principal and interest to be made on our $2.8 million 3% unsecured Convertible Notes due 2023 
(the  "Convertible  Notes")  and  our  $400  million  Secured  Senior  Term  Loan  due  2026  ("Senior  Secured  Term  Loan  due  2026").  The 
Convertible Notes bear interest at a fixed rate of 3% per year, payable semiannually on June 15 and December 15 of each year, and will 
mature on December 15, 2023. The Senior Secured Term Loan due 2026 bears interest at a rate equal to the 3-month LIBOR, subject to a 
1% floor, plus 6.5% per year, payable quarterly and requires interest-only payments until mid-2024. The Senior Secured Term Loan due 
2026 will be repaid in nine quarterly payments of $44.4 million, starting on July 2024 with the final balance due on the maturity date in 
July 2026. 
(4) Represents minimum purchase commitments due to third parties. Contracts for which our commitment is variable, based on volumes, 
with  no  fixed  minimum  quantities,  and  contracts  that  can  be  canceled  without  payment  penalties  have  been  excluded.  The  purchase 
obligations included above are in addition to amounts included in total recorded on our December 31, 2020 Consolidated Balance Sheet.

We have no other lines of credit or other committed sources of capital. To the extent our capital resources are insufficient 
to meet future capital requirements, we will need to raise additional capital or incur indebtedness to fund our operations. We 
cannot assure you that additional debt or equity financing will be available on acceptable terms, if at all.

Off-Balance Sheet Arrangements

We had no off-balance sheet arrangements as of December 31, 2020 and 2019.

Recent Accounting Pronouncements

Please  refer  to  "—  Note  2.  Summary  of  Significant  Accounting  Policies,"  in  our  Notes  to  Consolidated  Financial 

Statements.

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Item 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market  risk  is  the  risk  of  change  in  fair  value  of  a  financial  instrument  due  to  changes  in  interest  rates,  equity  prices, 
creditworthiness,  financing,  exchange  rates  or  other  factors.  Our  primary  market  risk  exposure  relates  to  changes  in  interest 
rates in our cash, cash equivalents, and marketable securities. We place our investments in high-quality financial instruments, 
primarily  money  market  funds,  corporate  debt  securities,  asset  backed  securities,  and  U.S.  government  agency  notes  with 
maturities  of  less  than  one  year,  which  we  believe  are  subject  to  limited  interest  rate  and  credit  risk.  The  securities  in  our 
investment  portfolio  are  not  leveraged,  are  classified  as  available-for-sale  and,  due  to  the  short-term  nature,  are  subject  to 
minimal  interest  rate  risk.  We  believe  that  a  1%  (100  basis  points)  change  in  average  interest  rates  would  either  increase  or 
decrease  the  market  value  of  our  investment  portfolio  by  $0.9  million  as  of  December  31,  2020.  We  currently  do  not  hedge 
interest  rate  exposure  and  consistent  with  our  investment  policy,  we  do  not  use  derivative  financial  instruments  in  our 
investment portfolio. 

We are exposed to interest rate risk with respect to variable rate debt. At December 31, 2020, we had a $400 million Senior 
Secured Term Loan due 2026 that bears interest at a rate equal to the 3-month LIBOR, subject to a 1% floor, plus 6.5% per 
year. We do not currently hedge our variable interest rate debt. The annual average variable interest rate for our variable rate 
debt as of December 31, 2020 was 7.5%. A hypothetical 100 basis point increase or decrease in the average interest rate on our 
variable rate debt would result in $1.0 million change in the interest expense as of December 31, 2020. 

The Financial Conduct Authority has announced the intent to phase out the use of LIBOR by the end of 2021. If LIBOR is 
discontinued, we may need to renegotiate the terms of the Senior Secured Term Loan due 2026 in order to replace LIBOR with 
an alternative standard. As a result, we may incur incremental costs in transitioning to a new standard, and interest rates on our 
current or future indebtedness may be adversely affected by the new standard. The potential effect of any such event on our cost 
of capital cannot yet be determined, but we do not expect it to have a material impact on our consolidated financial condition, 
results of operations, or cash flows.

We face foreign exchange risk as a result of entering into transactions denominated in currencies other than U.S. dollars. 
We  are  not  currently  engaged  in  any  foreign  currency  hedging  activities.  The  current  exposures  arise  primarily  from  cash, 
accounts  receivable,  intercompany  receivables  and  payables,  and  net  product  sales  denominated  in  foreign  currencies.  Both 
positive  and  negative  impacts  to  our  international  product  sales  from  movements  in  foreign  currency  exchange  rates  may  be 
partially  mitigated  by  the  natural,  opposite  impact  that  foreign  currency  exchange  rates  have  on  our  international  operating 
expenses.  A  hypothetical  10%  change  in  foreign  exchange  rates  during  any  of  the  periods  presented  would  not  have  had  a 
material impact on our Consolidated Financial Statements.

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Item 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Management's Report on Consolidated Financial Statements and
Internal Control over Financial Reporting

The management of Amicus Therapeutics, Inc. has prepared, and is responsible for the Company's Consolidated Financial 
Statements  and  related  footnotes.  These  Consolidated  Financial  Statements  have  been  prepared  in  conformity  with  U.S. 
generally accepted accounting principles ("U.S. GAAP").

We are responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over 
financial  reporting  is  defined  in  Rule  13a-15(f)  or  15d-15(f)  promulgated  under  the  Securities  Exchange  Act  of  1934  as  a 
process designed by, or under the supervision of the Company's principal executive and principal financial officers and effected 
by  the  Company's  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 
U.S. GAAP and includes those policies and procedures that:

•

•

•

pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and 
dispositions of the assets of Amicus Therapeutics, Inc.;

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 
Amicus therapeutics, Inc. are being made only in accordance with authorizations of management and directors 
of Amicus therapeutics, Inc.; and

provide  reasonable  assurance  regarding  prevention  or  timely  detection  of  unauthorized  acquisition,  use  or 
disposition  of  the  assets  of  Amicus  Therapeutics,  Inc.  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.

We  assessed  the  effectiveness  of  our  internal  control  over  financial  reporting  as  of  December  31,  2020.  In  making  this 
assessment, we used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (2013 
framework) ("COSO") in Internal Control — Integrated Framework. Based on our assessment we believe that, as of December 
31, 2020, our internal control over financial reporting is effective based on those criteria.

The effectiveness of the Company's internal control over financial reporting as of December 31, 2020 has been audited by 
Ernst  &  Young  LLP,  an  independent  registered  public  accounting  firm,  as  stated  in  their  report.  This  report  appears  on  the 
following page.

Dated March 1, 2021 

/s/ JOHN F. CROWLEY

Chairman and Chief Executive Officer

/s/ DAPHNE QUIMI

Chief Financial Officer

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Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of Amicus Therapeutics, Inc.

Opinion on Internal Control Over Financial Reporting

We  have  audited  Amicus  Therapeutics,  Inc.’s  internal  control  over  financial  reporting  as  of  December  31,  2020,  based  on 
criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the 
Treadway  Commission  (2013  framework),  (the  COSO  criteria).  In  our  opinion,  Amicus  Therapeutics,  Inc.  (the  "Company") 
maintained, in all material respects, effective internal control over financial reporting as of December 31, 2020, based on the 
COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) 
(PCAOB),  the  consolidated  balance  sheets  of  the  Company  as  of  December  31,  2020  and  2019,  the  related  consolidated 
statements of operations, comprehensive loss, changes in stockholders’ equity and cash flows for each of the three years in the 
period ended December 31, 2020, and the related notes and our report dated March 1, 2021 expressed an unqualified opinion 
thereon.

Basis for Opinion

The  Company’s  management  is  responsible  for  maintaining  effective  internal  control  over  financial  reporting  and  for  its 
assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report 
on Consolidated Financial Statements and Internal Control over Financial Reporting. Our responsibility is to express an opinion 
on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with 
the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws 
and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the 
audit  to  obtain  reasonable  assurance  about  whether  effective  internal  control  over  financial  reporting  was  maintained  in  all 
material respects.

Our  audit  included  obtaining  an  understanding  of  internal  control  over  financial  reporting,  assessing  the  risk  that  a  material 
weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and 
performing  such  other  procedures  as  we  considered  necessary  in  the  circumstances.  We  believe  that  our  audit  provides  a 
reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A  company’s  internal  control  over  financial  reporting  is  a  process  designed  to  provide  reasonable  assurance  regarding  the 
reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally 
accepted  accounting  principles.  A  company’s  internal  control  over  financial  reporting  includes  those  policies  and  procedures 
that  (1)  pertain  to  the  maintenance  of  records  that,  in  reasonable  detail,  accurately  and  fairly  reflect  the  transactions  and 
dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit 
preparation  of  financial  statements  in  accordance  with  generally  accepted  accounting  principles,  and  that  receipts  and 
expenditures  of  the  company  are  being  made  only  in  accordance  with  authorizations  of  management  and  directors  of  the 
company;  and  (3)  provide  reasonable  assurance  regarding  prevention  or  timely  detection  of  unauthorized  acquisition,  use,  or 
disposition of the company’s assets that could have a material effect on the financial statements.

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

/s/  Ernst & Young LLP

Iselin, New Jersey
March 1, 2021 

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Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of Amicus Therapeutics, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Amicus Therapeutics, Inc. (the "Company") as of December 
31, 2020 and 2019, the related consolidated statements of operations, comprehensive loss, changes in stockholders’ equity and 
cash flows for each of the three years in the period ended December 31, 2020, and the related notes (collectively referred to as 
the  "consolidated  financial  statements").  In  our  opinion,  the  consolidated  financial  statements  present  fairly,  in  all  material 
respects, the financial position of the Company at December 31, 2020 and 2019, and the results of its operations and its cash 
flows for each of the three years in the period ended December 31, 2020, in conformity with U.S. generally accepted accounting 
principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) 
(PCAOB), the Company’s internal control over financial reporting as of December 31, 2020, based on criteria established in 
Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission 
(2013 framework), and our report dated March 1, 2021 expressed an unqualified opinion thereon.

Basis for Opinion

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

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the 
audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to 
error  or  fraud.  Our  audits  included  performing  procedures  to  assess  the  risks  of  material  misstatement  of  the  financial 
statements,  whether  due  to  error  or  fraud,  and  performing  procedures  that  respond  to  those  risks.  Such  procedures  included 
examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included 
evaluating  the  accounting  principles  used  and  significant  estimates  made  by  management,  as  well  as  evaluating  the  overall 
presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

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Critical Audit Matter

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

Fair Value Measurement of the Contingent Consideration

Description of the 
Matter

As described in Note 11 to the consolidated financial statements, the Company has a $25.8 million 
contingent consideration liability recorded as of December 31, 2020 representing the fair value of 
additional  amounts  that  management  believes  are  likely  to  be  paid  to  the  former  stockholders  of 
Callidus Biopharma, Inc. The determination of the recorded amount of the contingent consideration 
liabilities requires the Company to make significant estimates and assumptions.

We  identified  the  measurement  of  the  contingent  consideration  liability  as  a  critical  audit  matter 
because  auditing  the  Company’s  valuation  of  the  contingent  consideration  liability  involved 
complex  and  challenging  auditor  judgment  as  the  inputs  to  such  valuation,  such  as  the  estimated 
probability  of  achieving  milestones,  the  assumed  timing  of  milestones  and  the  discount  rates,  are 
largely unobservable. 

How We 
Addressed the 
Matter in Our 
Audit

To  test  the  estimated  fair  value  of  the  contingent  consideration  liability,  we  performed  audit 
procedures  that  included  testing  the  operating  effectiveness  of  internal  controls  relating  to 
management’s  fair  value  measurement  of  the  contingent  consideration  liability  including  controls 
over the Company’s model, significant assumptions, and data. 

Our procedures also included, among others, assessing the terms of the arrangement, evaluating the 
methodology  used,  testing  the  significant  assumptions  discussed  above  and  the  completeness, 
accuracy  and  relevance  of  the  underlying  data  used  by  management  in  its  analysis.  We  also 
performed analyses of certain assumptions to assess the impact of changes in certain assumptions on 
the Company’s determination of the fair value of the contingent consideration liability. Evaluating 
the  assumptions  also  involved  evaluating  whether  the  assumptions  used  by  management  were 
consistent with external market data and evidence obtained in other areas of the audit.

/s/  Ernst & Young LLP

We have served as the Company's auditor since 2003.

Iselin, New Jersey
March 1, 2021 

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Amicus Therapeutics, Inc.
Consolidated Balance Sheets
(in thousands, except share and per share amounts)

Assets

Current assets:

Cash and cash equivalents

Investments in marketable securities

Accounts receivable

Inventories

Prepaid expenses and other current assets

Total current assets

December 31,

2020

2019

$ 

163,240  $ 

320,029 

46,923 

19,556 

29,721 

579,469 

142,837 

309,903 

33,284 

14,041 

20,008 

520,073 

Operating lease right-of-use assets, less accumulated amortization of $7,574 and $5,342 at December 
31, 2020 and December 31, 2019, respectively

23,296 

33,315 

Property and equipment, less accumulated depreciation of $14,487 and $17,604 at December 31, 
2020 and December 31, 2019, respectively

In-process research & development

Goodwill

Other non-current assets

Total Assets

Liabilities and Stockholders' Equity

Current liabilities:

Accounts payable

Accrued expenses and other current liabilities

Contingent consideration payable

Operating lease liabilities

Total current liabilities

Deferred reimbursements

Long-term debt

Contingent consideration payable

Deferred income taxes

Operating lease liabilities

Other non-current liabilities

Total liabilities

Commitments and contingencies

Stockholders' equity:

Common stock, $0.01 par value, 500,000,000 shares authorized, 262,063,461 and 255,417,869 shares 
issued and outstanding at December 31, 2020 and December 31, 2019, respectively

Additional paid-in capital

Accumulated other comprehensive loss:

Foreign currency translation adjustment

Unrealized (loss) gain on available-for securities

Warrants

Accumulated deficit

Total stockholders' equity

Total Liabilities and Stockholders' Equity

43,863 

23,000 

197,797 

19,095 

$ 

886,520  $ 

$ 

17,063  $ 

96,841 

8,900 

6,872 

129,676 

7,406 

389,254 

16,925 

4,896 

45,604 

6,379 

47,705 

23,000 

197,797 

28,317 

850,207 

21,722 

99,901 

— 

7,189 

128,812 

8,906 

149,505 

22,681 

5,051 

53,531 

5,296 

600,140 

373,782 

2,650 

2,598 

2,308,578 

2,227,225 

8,412 

(185) 

12,387 

2,785 

40 

12,387 

(2,045,462) 

(1,768,610) 

286,380 

$ 

886,520  $ 

476,425 

850,207 

See accompanying Notes to Consolidated Financial Statements

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Amicus Therapeutics, Inc.
Consolidated Statements of Operations
(in thousands, except share and per share amounts)

Net product sales

Cost of goods sold

Gross profit

Operating expenses:

Research and development

Selling, general, and administrative

Changes in fair value of contingent consideration payable

Depreciation and amortization

Total operating expenses

Loss from operations

Other (expense) income:

Interest income

Interest expense

Loss on exchange of convertible notes

Loss on extinguishment of debt

Change in fair value of derivatives

Other expense

Loss before income tax

Income tax (expense) benefit

Years Ended December 31,

2020

2019

2018

$ 

260,886  $ 

182,237  $ 

31,044 

229,842 

308,443 

156,407 

3,144 

8,846 

21,963 

160,274 

286,378 

169,861 

3,297 

4,775 

91,245 

14,404 

76,841 

270,902 

127,200 

3,300 

4,216 

476,840 

464,311 

405,618 

(246,998)   

(304,037)   

(328,777) 

3,226 

(22,425)   

— 

(7,276)   

— 

10,249 

(18,872)   

(40,624)   

— 

— 

(781)   

(2,626)   

10,461 

(22,402) 

— 

— 

(2,739) 

(5,632) 

(274,254)   

(355,910)   

(349,089) 

(2,598)   

(478)   

94 

(276,852)  $ 

(356,388)  $ 

(348,995) 

(1.07)  $ 

(1.48)  $ 

(1.88) 

Net loss attributable to common stockholders
Net loss attributable to common stockholders per common share — basic 
and diluted

$ 

$ 

Weighted-average common shares outstanding — basic and diluted

  258,867,380 

  240,421,001 

  185,790,021 

See accompanying Notes to Consolidated Financial Statements

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Amicus Therapeutics, Inc.
Consolidated Statements of Comprehensive Loss
(in thousands, except share and per share amounts)

Net loss

Other comprehensive gain:

Foreign currency translation adjustment gain, net of tax impact of $1,552, 
$889, and $0, respectively
Unrealized (loss) gain on available-for-sale securities, net of tax impact of 
$(50), $182, and $0, respectively

Other comprehensive income

Comprehensive loss

Years Ended December 31,

2020

2019

2018

$ 

(276,852)  $ 

(356,388)  $ 

(348,995) 

5,627 

(225)   

5,402 

2,290 

467 

2,757 

2,537 

9 

2,546 

$ 

(271,450)  $ 

(353,631)  $ 

(346,449) 

See accompanying Notes to Consolidated Financial Statements

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Amicus Therapeutics, Inc.
Consolidated Statements of Changes in Stockholders' Equity
(in thousands, except share amounts)

Common Stock

Shares

Amount

Additional
Paid-In
Capital

Warrants

Other
Comprehensive
Gain (Loss)

Accumulated
Deficit

Total
Stockholders'
Equity

Balance at December 31, 2017

166,989,790  $ 

1,721  $ 

1,400,758  $ 

16,076  $ 

(2,095)  $ 

(1,063,610)  $ 

352,850 

Stock issued from exercise of 
stock options, net

1,397,908 

Stock issued from equity financing  

20,239,839 

Restricted stock tax vesting

Stock-based compensation

Reclassification upon ASU 
2018-02 adoption

Warrants exercised

Change in fair value of derivatives

Unrealized holding gain on 
available-for-sale securities

Foreign currency translation 
adjustment

Net loss

303,173 

— 

— 

453,214 

— 

— 

— 

— 

14 

202 

— 

— 

— 

5 

— 

— 

— 

— 

9,130 

294,381 

(2,832) 

29,260 

— 

6,625 

2,739 

— 

— 

— 

— 

— 

— 

— 

— 

(3,013) 

— 

— 

— 

— 

Balance at December 31, 2018

189,383,924 

1,942 

1,740,061 

13,063 

Stock issued from exercise of 
stock options, net

1,967,087 

Stock issued from equity financing  

18,720,930 

Restricted stock tax vesting

Stock issued for contingent 
consideration

Stock-based compensation

Warrants exercised

Equity component of the 
convertible notes

Termination of capped call 
confirmations

Unrealized holding gain on 
available-for-sale securities

Foreign currency translation 
adjustment

Net loss

20 

187 

— 

8 

— 

1 

11,456 

188,807 

(3,235) 

9,308 

44,430 

1,487 

477,198 

771,804 

— 

101,787 

43,995,139 

440 

215,036 

— 

— 

— 

— 

— 

— 

— 

— 

19,875 

— 

— 

— 

— 

— 

— 

— 

— 

(676) 

— 

— 

— 

— 

— 

Balance at December 31, 2019

255,417,869 

2,598 

2,227,225 

12,387 

Stock issued from exercise of 
stock options, net

Restricted stock tax vesting

Stock-based compensation

Unrealized holding (loss) on 
available-for-sale securities

Foreign currency translation 
adjustment

Net loss

5,233,672 

1,411,920 

— 

— 

— 

— 

52 

— 

— 

— 

— 

— 

42,230 

(10,028) 

49,151 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

(383) 

— 

— 

9 

2,537 

— 

68 

— 

— 

— 

— 

— 

— 

— 

— 

467 

2,290 

— 

2,825 

— 

— 

— 

(225) 

5,627 

— 

— 

— 

— 

— 

383 

— 

— 

— 

— 

9,144 

294,583 

(2,832) 

29,260 

— 

3,617 

2,739 

9 

2,537 

(348,995) 

(348,995) 

(1,412,222) 

342,912 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

11,476 

188,994 

(3,235) 

9,316 

44,430 

812 

215,476 

19,875 

467 

2,290 

(356,388) 

(356,388) 

(1,768,610) 

476,425 

— 

— 

— 

— 

— 

42,282 

(10,028) 

49,151 

(225) 

5,627 

(276,852) 

(276,852) 

Balance at December 31, 2020

262,063,461  $ 

2,650  $ 

2,308,578  $ 

12,387  $ 

8,227  $ 

(2,045,462)  $ 

286,380 

See accompanying Notes to Consolidated Financial Statements

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Amicus Therapeutics, Inc.
Consolidated Statements of Cash Flows
(in thousands)

Operating activities

Net loss

Adjustments to reconcile net loss to net cash used in operating activities:

Amortization of debt discount and deferred financing

Depreciation and amortization

Stock-based compensation

Loss on exchange of convertible notes

Loss on extinguishment of debt

Change in fair value of derivatives

Non-cash changes in the fair value of contingent consideration payable

Foreign currency remeasurement loss

Non-cash deferred taxes

Other

Changes in operating assets and liabilities:

Accounts receivable

Inventories

Prepaid expenses and other current assets

Accounts payable, accrued expenses, and other current liabilities

Other non-current assets and liabilities

Deferred reimbursements

Net cash used in operating activities

Investing activities

Sale and redemption of marketable securities

Purchases of marketable securities

Capital expenditures

Years Ended December 31,

2020

2019

2018

$ 

(276,852)  $ 

(356,388)  $ 

(348,995) 

1,794 

8,846 

49,151 

— 

7,276 

— 

3,144 

5,471 

(155) 

99 

(11,219) 

(4,639) 

(8,766) 

(10,610) 

4,420 

(1,250) 

2,546 

4,775 

44,430 

40,624 

— 

— 

3,297 

254 

(1,415) 

(149) 

(11,114) 

(5,114) 

(3,287) 

46,742 

(10,117) 

(5,500) 

10,976 

4,216 

29,260 

— 

— 

2,739 

3,300 

3,217 

— 

59 

(13,294) 

(4,205) 

2,488 

17,115 

(581) 

(6,250) 

$ 

(233,290)  $ 

(250,416)  $ 

(299,955) 

354,826 

(365,178) 

(3,227) 

499,047 

(383,882) 

(20,012) 

463,502 

(578,394) 

(6,308) 

Net cash (used in) provided by investing activities

$ 

(13,579)  $ 

95,153  $ 

(121,200) 

Financing activities

Proceeds from issuance of common stock, net of issuance costs

— 

188,994 

294,584 

Payment of long-term debt

Proceeds from long-term debt, net of issuance costs

Payment of finance leases

Purchase of vested restricted stock units

Proceeds from termination of capped call confirmations 

Proceeds from exercise of stock options

Proceeds from exercise of warrants

Net cash provided by financing activities

Effect of exchange rate changes on cash, cash equivalents, and restricted cash

Net increase in cash, cash equivalents, and restricted cash

Cash, cash equivalents, and restricted cash at the beginning of the year

$ 

$ 

(155,249) 

385,929 

(76) 

(10,028) 

— 

42,282 

— 

— 

— 

(420) 

(3,235) 

19,875 

11,476 

812 

— 

146,596 

(334) 

(2,832) 

— 

9,144 

3,617 

262,858  $ 

217,502  $ 

450,775 

3,830  $ 

1,729  $ 

19,819 

146,343 

63,968 

82,375 

1,518 

31,138 

51,237 

82,375 

Cash, cash equivalents, and restricted cash at the end of the year

$ 

166,162  $ 

146,343  $ 

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Supplemental disclosures of cash flow information

Tenant improvements paid through lease incentive

Cash paid during the period for interest

Contingent consideration paid in shares

Capital expenditures unpaid at the end of period

Cash paid for taxes

Years Ended December 31,

2020

2019

2018

$ 

$ 

$ 

$ 

$ 

470  $ 

24,683  $ 

—  $ 

985  $ 

10,371  $ 

19,388  $ 

16,966  $ 

9,316  $ 

1,865  $ 

691  $ 

— 

7,500 

— 

106 

1,062 

See accompanying Notes to Consolidated Financial Statements

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1. Description of Business

Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements

Amicus Therapeutics, Inc. (the "Company") is a global, patient-dedicated biotechnology company focused on discovering, 
developing, and delivering novel medicines for rare diseases. The Company has a portfolio of product opportunities led by the 
first,  oral  monotherapy  for  Fabry  disease  that  has  achieved  widespread  global  approval,  a  differentiated  biologic  for  Pompe 
disease, and an industry leading rare disease gene therapy portfolio. 

The cornerstone of the Company's portfolio is Galafold® (also referred to as "migalastat"), the first and only approved oral 
precision medicine for people living with Fabry disease who have amenable genetic variants. Migalastat is currently approved 
under the trade name Galafold® in the United States ("U.S."), European Union ("E.U."), United Kingdom ("U.K."), and Japan, 
with multiple additional approvals granted and applications pending in several other geographies around the world. 

The lead biologics program of the Company's pipeline is Amicus Therapeutics GAA ("AT-GAA", also known as ATB200/
AT2221,  or  cipaglucosidase  alfa/miglustat),  a  novel,  clinical-stage,  potential  best-in-class  treatment  paradigm  for  Pompe 
disease. In February 2019, the FDA granted Breakthrough Therapy designation ("BTD") to AT-GAA for the treatment of late 
onset Pompe disease. The Company initiated the rolling Biologic License Application ("BLA") submission to the FDA in the 
fourth quarter of 2020. 

The Company has established an industry leading gene therapy portfolio of potential therapies for people living with rare 
metabolic  diseases,  through  a  license  with  Nationwide  Children's  Hospital  ("Nationwide  Children's")  and  an  expanded 
collaboration with the University of Pennsylvania ("Penn"). The Company's pipeline includes gene therapy programs in rare, 
neurologic lysosomal disorders ("LDs"), specifically: CLN6, CLN3, and CLN1 Batten disease, Pompe disease, Fabry disease, 
CDKL5 deficiency disorder ("CDD"), Mucopolysaccharidosis Type IIIB ("MPS IIIB"), as well as a next generation program in 
Mucopolysaccharidosis  Type  IIIA  ("MPS  IIIA").  This  expanded  collaboration  with  Penn  also  provides  the  Company  with 
exclusive  disease-specific  access  and  option  rights  to  develop  potentially  disruptive  new  gene  therapy  platform  technologies 
and  programs  for  most  LDs  and  a  broader  portfolio  of  more  prevalent  rare  diseases,  including  Rett  Syndrome,  Angelman 
Syndrome, Myotonic Dystrophy, and select other muscular dystrophies. In the first quarter of 2020, the FDA granted Fast Track 
designation to the CLN3 Batten disease gene therapy, AT-GTX-502, for the treatment of pediatric patients less than 18 years of 
age. In September 2020 and February 2021, the European Medicines Agency granted Priority Medicines designation and the 
FDA granted Fast Track Designation, respectively, to the CLN6 Batten disease gene therapy, AT-GTX-501, for the treatment 
of patients with variant late infantile neuronal ceroid lipofuscinosis 6 ("vLINCL6").

The Company's operations have not been significantly impacted from the novel coronavirus (“COVID-19”) pandemic in 
2020;  however,  the  Company  observed  increased  lag  times  between  patient  identification  and  Galafold®  initiation  due  to  the 
resurgence of COVID-19 in the fourth quarter. The Company has maintained operations in all geographies, secured its global 
supply chain for its commercial and clinical products, and maintained the operational integrity of its clinical trials, with minimal 
disruption.  The  Company  believes  its  ability  to  continue  to  operate  without  any  significant  disruptions  will  depend  on  the 
continued health of its employees, the ongoing demand for Galafold® and the continued operation of its global supply chain. 
The Company has continued to provide uninterrupted access to medicines for those in need of treatment, while prioritizing the 
health and safety of its global workforce. However, the Company's results of operations in future periods may be negatively 
impacted by unknown future impacts from the COVID-19 pandemic.

In  July  2020,  the  Company  entered  into  a  definitive  agreement  for  a  $400  million  credit  facility  with  Hayfin  Capital 
Management (“Senior Secured Term Loan due 2026”) with an interest rate equal to 3-month LIBOR, subject to a 1% floor, plus 
6.5% per annum and requires interest-only payments until mid-2024 and matures in six years in 2026. This transaction resulted 
in  net  proceeds  of  $385.9  million,  after  deducting  fees  and  expenses.  There  were  no  warrants  or  equity  conversion  features 
associated with the Senior Secured Term Loan due 2026. Additionally, the Company used $156.3 million of the proceeds to 
voluntarily settle the principal amount, accrued interest, and early settlement premiums of the Senior Secured Term Loan with 
BioPharma Credit PLC that was due in 2023 ("Senior Secured Term Loan due 2023"). 

The Company had an accumulated deficit of $2.0 billion as of December 31, 2020 and anticipates incurring losses through 
the  fiscal  year  ending  December  31,  2021  and  beyond.  The  Company  has  historically  funded  its  operations  through  stock 
offerings, debt issuances, Galafold® revenues, collaborations, and other financing arrangements.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Based on current operating models, the Company believes that the current cash position, which includes the net proceeds 
from  the  Senior  Secured  Term  Loan  due  2026  and  expected  revenues,  is  sufficient  to  fund  the  Company's  operations  and 
ongoing research programs to achieve self-sustainability. Potential impacts of the COVID-19 pandemic, business development 
collaborations,  pipeline  expansion,  and  investment  in  manufacturing  capabilities  could  impact  the  Company's  future  capital 
requirements.

2. Summary of Significant Accounting Policies

Basis of Presentation

The  Company  has  prepared  the  accompanying  Consolidated  Financial  Statements  in  accordance  with  U.S.  generally 
accepted accounting principles ("U.S. GAAP") and include all adjustments necessary for the fair presentation of the Company's 
financial position for the periods presented.

Consolidation

The Consolidated Financial Statements include the accounts of the Company and its subsidiaries. Intercompany accounts 

and transactions are eliminated in consolidation.

Foreign Currency Transactions

The functional currency for most of the Company's foreign subsidiaries is their local currency. For non-U.S. subsidiaries 
that transact in a functional currency other than the U.S. dollar, assets and liabilities are translated at current rates of exchange 
at  the  balance  sheet  date.  Income  and  expense  items  are  translated  at  the  average  foreign  exchange  rates  for  the  period. 
Adjustments resulting from the translation of the financial statements of the Company's foreign operations into U.S. dollars are 
excluded  from  the  determination  of  net  income  and  are  recorded  in  accumulated  other  comprehensive  income,  a  separate 
component of stockholders' equity.

Use of Estimates

The  preparation  of  financial  statements  in  conformity  with  U.S.  GAAP  requires  management  to  make  estimates  and 
assumptions  that  affect  the  reported  amounts  of  assets  and  liabilities,  the  disclosure  of  contingent  assets  and  liabilities  at  the 
date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Actual results 
could differ from those estimates.

Additionally, the Company assessed the impact COVID-19 pandemic has had on its operations and financial results as of 
December  31,  2020  and  through  the  issuance  of  this  report.  The  Company’s  analysis  was  informed  by  the  facts  and 
circumstances as they were known to the Company. This assessment considered the impact COVID-19 may have on financial 
estimates and assumptions that affect the reported amounts of assets and liabilities and revenue and expenses.

Cash, Cash Equivalents, Marketable Securities, and Restricted Cash

The  Company  considers  all  highly  liquid  investments  purchased  with  a  maturity  of  three  months  or  less  at  the  date  of 
acquisition  to  be  cash  equivalents.  Marketable  securities  consist  of  fixed  income  investments  with  a  maturity  of  greater  than 
three  months  and  other  highly  liquid  investments  that  can  be  readily  purchased  or  sold  using  established  markets.  These 
investments are classified as available-for-sale and are reported at fair value on the Company's Consolidated Balance Sheets. 
Unrealized  holding  gains  and  losses  are  reported  within  comprehensive  income  (loss)  in  the  Statements  of  Comprehensive 
Loss. Fair value is based on available market information including quoted market prices, broker or dealer quotations, or other 
observable inputs.

Restricted cash consists primarily of funds held to satisfy the requirements of certain agreements that are restricted in their 

use and is included in other current assets and other non-current assets on the Company's Consolidated Balance Sheets. 

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Concentration of Credit Risk

The  Company's  financial  instruments  that  are  exposed  to  concentration  of  credit  risk  consist  primarily  of  cash,  cash 
equivalents, and marketable securities. The Company maintains its cash and cash equivalents in bank accounts, which, at times, 
exceed  federally  insured  limits.  The  Company  invests  its  marketable  securities  in  high-quality  commercial  financial 
instruments.  The  Company  has  not  recognized  any  losses  from  credit  risks  on  such  accounts  during  any  of  the  periods 
presented.  The  Company  believes  it  is  not  exposed  to  significant  credit  risk  on  its  cash,  cash  equivalents,  or  marketable 
securities.

The Company is subject to credit risk from its accounts receivable related to its product sales of Galafold®. The Company's 
accounts receivable at December 31, 2020 have arisen from product sales primarily in Europe and the U.S. The Company will 
periodically  assess  the  financial  strength  of  its  customers  to  establish  allowances  for  anticipated  losses,  if  any.  For  accounts 
receivable  that  have  arisen  from  named  patient  sales,  the  payment  terms  are  predetermined,  and  the  Company  evaluates  the 
creditworthiness  of  each  customer  on  a  regular  basis.  As  of  December  31,  2020,  the  Company  recorded  an  allowance  for 
doubtful accounts of $0.1 million.

Property and Equipment

Property  and  equipment  are  stated  at  cost,  less  accumulated  depreciation.  Depreciation  is  calculated  over  the  estimated 
useful lives of the respective assets, which range from three to five years, or the lesser of the related initial term of the lease or 
useful life for leasehold improvements.

The initial cost of property and equipment consists of its purchase price and any directly attributable costs of bringing the 
asset to its working condition and location for its intended use. Expenditures incurred after the fixed assets have been put into 
operation,  such  as  repairs  and  maintenance,  are  charged  to  income  in  the  period  in  which  the  costs  are  incurred.  Major 
replacements, improvements, and additions are capitalized in accordance with Company policy.

Revenue Recognition

The  Company’s  net  product  sales  consist  of  sales  of  Galafold®  for  the  treatment  of  Fabry  disease.  The  Company  has 
recorded  revenue  on  sales  where  Galafold®  is  available  either  on  a  commercial  basis  or  through  a  reimbursed  early  access 
program ("EAP"). Orders for Galafold® are generally received from distributors and pharmacies, with the ultimate payor often a 
government  authority.  In  2020,  one  customer  accounted  for  25%  of  net  product  sales  and  12%  of  accounts  receivable  from 
product  sales.  In  2019,  one  customer  accounted  for  22%  of  net  product  sales  and  11%  of  accounts  receivable  from  product 
sales.

The Company recognizes revenue when its performance obligations to its customers have been satisfied, which occurs at a 
point  in  time  when  the  pharmacies  or  distributors  obtain  control  of  Galafold®.  The  transaction  price  is  determined  based  on 
fixed consideration in the Company's customer contracts and is recorded net of estimates for variable consideration, which are 
third party discounts and rebates. The identified variable consideration is recorded as a reduction of revenue at the time revenue 
from the sale of Galafold® is recognized. The Company recognizes revenue to the extent that it is probable that a significant 
revenue reversal will not occur in a future period. These estimates may differ from actual consideration received. The Company 
evaluates these estimates each reporting period to reflect known changes.

The following table summarizes the Company's net product sales from Galafold® disaggregated by geographic area:

(in thousands)
U.S.
Ex-U.S.

Total net product sales

For the Year 

2020

2019

2018

$ 

$ 

80,046  $ 

52,478  $ 

180,840 

129,759 

260,886  $ 

182,237  $ 

7,223 

84,022 

91,245 

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Inventories and Cost of Goods Sold

Inventories are stated at the lower of cost and net realizable value, determined by the first-in, first-out method. Inventories 
are  reviewed  periodically  to  identify  slow-moving  or  obsolete  inventory  based  on  projected  sales  activity  as  well  as  product 
shelf-life. In evaluating the recoverability of inventories produced, the probability that revenue will be obtained from the future 
sale of the related inventory is considered and inventory value is written down for inventory quantities in excess of expected 
requirements. Expired inventory is disposed of and the related costs are recognized as cost of goods sold in the Consolidated 
Statements of Operations.

Cost  of  goods  sold  includes  the  cost  of  inventory  sold,  manufacturing  and  supply  chain  costs,  product  shipping  and 

handling costs, provisions for excess and obsolete inventory, as well as royalties payable. 

Fair Value Measurements

The  Company  records  certain  asset  and  liability  balances  under  the  fair  value  measurements  as  defined  by  the  FASB 
guidance. Current FASB fair value guidance emphasizes that fair value is a market-based measurement, not an entity-specific 
measurement.  Therefore,  a  fair  value  measurement  should  be  determined  based  on  the  assumptions  that  market  participants 
would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair value measurements, 
current FASB guidance establishes a fair value hierarchy that distinguishes between market participant assumptions based on 
market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 
2 of the hierarchy) and the reporting entity's own assumptions that market participants assumptions would use in pricing assets 
or liabilities (unobservable inputs classified within Level 3 of the hierarchy).

Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has 
the  ability  to  access  at  measurement  date.  Level  2  inputs  are  inputs  other  than  quoted  prices  included  in  Level  1  that  are 
observable for the asset or liability, either directly or indirectly. Level 2 inputs may include quoted prices for similar assets and 
liabilities  in  active  markets,  as  well  as  inputs  that  are  observable  for  the  asset  or  liability  (other  than  quoted  prices),  such  as 
interest  rates,  foreign  exchange  rates,  and  yield  curves  that  are  observable  at  commonly  quoted  intervals.  Level  3  inputs  are 
unobservable inputs for the asset or liability, which is typically based on an entity's own assumptions, as there is little, if any, 
related market activity. In instances where the determination of the fair value measurement is based on inputs from different 
levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is 
based on the lowest level input that is significant to the fair value measurement in its entirety. The Company's assessment of the 
significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to 
the asset or liability.

Contingent Liabilities

On  an  ongoing  basis,  the  Company  may  be  involved  in  various  claims  and  legal  proceedings.  On  a  quarterly  basis,  the 
Company reviews the status of each significant matter and assesses its potential financial exposure. If the potential loss from 
any claim, asserted or unasserted, or legal proceeding is considered probable and the amount can be reasonably estimated, the 
Company will accrue a liability for the estimated loss. Because of uncertainties related to claims and litigation, accruals will be 
based on the Company's best estimates based on available information. On a periodic basis, as additional information becomes 
available, or based on specific events such as the outcome of litigation or settlement of claims, the Company may reassess the 
potential liability related to these matters and may revise these estimates, which could result in material adverse adjustments to 
the Company's operating results.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Research and Development Costs

Research and development costs are expensed as incurred. Research and development expense consist primarily of costs 
related  to  personnel,  including  salaries  and  other  personnel  related  expenses,  consulting  fees,  and  the  cost  of  facilities  and 
support  services  used  in  drug  development.  Assets  acquired  that  are  used  for  research  and  development  and  have  no  future 
alternative use are expensed as in-process research and development.

Interest Income and Interest Expense

Interest  income  consists  of  interest  earned  on  the  Company's  cash,  cash  equivalents,  and  marketable  securities.  Interest 

expense consists of interest incurred on debt and finance leases.

Income Taxes

The Company accounts for income taxes under the liability method. Under this method deferred income tax liabilities and 
assets  are  determined  based  on  the  difference  between  the  financial  statement  carrying  amounts  and  tax  basis  of  assets  and 
liabilities  and  for  operating  losses  and  tax  credit  carry  forwards,  using  enacted  tax  rates  in  effect  in  the  years  in  which  the 
differences are expected to reverse. A valuation allowance is recorded if it is "more likely than not" that a portion or all of a 
deferred tax asset will not be realized.

Other Comprehensive Income (Loss)

Components of other comprehensive income (loss) include unrealized gains and losses on available-for-sale securities and 

gain (loss) on foreign currency transactions and are included in the Statements of Comprehensive Loss.

Leases

The Company primarily enters into lease agreements for office space, equipment, and vehicles. The leases have varying 
terms, some of which could include options to renew, extend, and early terminate. The Company determines if an arrangement 
is  a  lease  at  contract  inception.  Operating  leases  are  included  in  right-of-use  ("ROU")  assets  and  lease  liabilities  on  the 
Consolidated Balance Sheets. 

ROU assets represent the Company's right to control the use of an explicitly or implicitly identified fixed asset for a period 
of time and lease liabilities represent the Company's obligation to make lease payments arising from the lease. Control of an 
underlying asset is conveyed to the Company if the Company obtains the rights to direct the use of and to obtain substantially 
all of the economic benefits from using the underlying asset. ROU assets and liabilities are recognized at commencement date 
based on the present value of lease payments over the lease term. The Company uses its incremental borrowing rate based on 
the information available at commencement date in determining the present value of lease payments. 

Lease  payments  included  in  the  measurement  of  the  lease  liability  are  comprised  of  fixed  payments.  Variable  lease 
payments are excluded from the ROU asset and lease liability and are recognized in the period in which the obligation for those 
payments is incurred. Variable lease payments are presented in the Consolidated Statements of Operations in the same line item 
as expenses arising from fixed lease payments for operating leases. The Company has lease agreements that include lease and 
non-lease components, which the Company accounts for as a single lease component for all underlying asset categories. 

The lease term for all of the Company's leases include the non-cancellable period of the lease plus any additional periods 
covered by either a Company option to extend (or not to terminate) the lease that the Company is reasonably certain to exercise, 
or an option to extend (or not to terminate) the lease controlled by the lessor. 

Leases  with  an  initial  term  of  12  months  or  less  are  not  recorded  on  the  Consolidated  Balance  Sheets.  The  Company 
recognizes lease expense for these leases on a straight-line basis over the lease term. The Company applies this policy to all 
underlying asset categories.

The  information  presented  for  the  periods  prior  to  January  1,  2019  has  not  been  restated  and  is  reported  under  the 

accounting standard in effect for those periods. For additional information, see " -Note 13. Leases".

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Nonqualified Cash Deferral Plan

The  Company's  Cash  Deferral  Plan  (the  "Deferral  Plan"),  provides  certain  key  employees  and  members  of  the  Board  of 
Directors  as  selected  by  the  Compensation  Committee  of  the  Board  of  Directors  of  the  Company  (the  "Compensation 
Committee"), with an opportunity to defer the receipt of such participant's base salary, bonus, and director's fees, as applicable. 
The  Deferral  Plan  is  intended  to  be  a  nonqualified  deferred  compensation  plan  that  complies  with  the  provisions  of 
Section  409A  of  the  Internal  Revenue  Code  (the  "Code").  All  of  the  investments  held  in  the  Deferral  Plan  are  classified  as 
investments held-to-maturity and recorded at fair value with changes in the investments' fair value recognized as earnings in the 
period they occur. The corresponding liability for the Deferral Plan is included in other non-current liability in the Consolidated 
Balance Sheets.

Equity-based Compensation

At December 31, 2020, the Company had one equity-based employee compensation plan, which is described more fully in 
"— Note 9. Stockholders' Equity." The Company applies the fair value method of measuring equity-based compensation, which 
requires a public entity to measure the cost of employee services received in exchange for an award of equity instruments based 
on the grant-date fair value of the award.

Loss per Common Share

The  Company  calculates  net  loss  per  share  as  a  measurement  of  the  Company's  performance  while  giving  effect  to  all 
dilutive potential common shares that were outstanding during the reporting period. The Company had a net loss for all periods 
presented; accordingly, the inclusion of common stock options, unvested RSUs, and warrants would be anti-dilutive. Therefore, 
the weighted average shares used to calculate both basic and diluted earnings per share are the same. See "— Note 17. Basic 
and Diluted Net Loss per Common Share" for further discussion on net loss per share.

Segment Information

The Company currently operates in one business segment focused on the discovery, development, and commercialization 
of advanced therapies to treat a range of devastating rare and orphan diseases. The Company is not organized by market and is 
managed  and  operated  as  one  business.  A  single  management  team  reports  to  the  chief  operating  decision  maker  who 
comprehensively  manages  the  entire  business.  The  Company  does  not  operate  any  separate  lines  of  business  or  separate 
business  entities  with  respect  to  its  products.  Accordingly,  the  Company  does  not  accumulate  discrete  financial  information 
with respect to separate service lines, and thus there is one reporting unit.

Business Combinations

The  Company  assigns  fair  value  to  the  tangible  and  intangible  assets  acquired  and  liabilities  assumed  based  upon  their 
estimated  fair  values  on  the  acquisition  date  from  acquired  businesses.  The  purchase  price  allocation  process  requires 
management to make significant estimates and assumptions, especially at the acquisition date with respect to intangible assets 
and  in-process  research  and  development  ("IPR&D").  In  connection  with  the  purchase  price  allocations  for  acquisitions,  the 
Company  estimates  the  fair  value  of  contingent  payments  utilizing  a  probability-based  income  approach  inclusive  of  an 
estimated discount rate.

Contingent Consideration Payable

Contingent  consideration  payments  in  asset  acquisitions  are  recognized  when  the  contingency  is  resolved  and  the 
consideration is paid or becomes payable. This does not apply in circumstances when the contingent consideration meets the 
definition of a derivative, in which case the amount becomes part of the basis in the asset acquired. Upon recognition of the 
contingent consideration payment, the amount is included in the cost of the acquired asset or group of assets. The Company 
determines  the  fair  value  of  contingent  acquisition  consideration  payable  on  the  acquisition  date  using  a  probability-based 
income approach utilizing an appropriate discount rate. The short term and long term portions of the contingent consideration 
payable is shown on the Company's Consolidated Balance Sheets. The fair value of the contingent consideration payable will be 
determined each period end and the resulting change will be recorded on the Consolidated Statements of Operations.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Intangible Assets and Goodwill

The Company records goodwill in a business combination when the total consideration exceeds the fair value of the net 
tangible and identifiable intangible assets acquired. Purchased IPR&D is accounted for as an indefinite lived intangible asset 
until the underlying project is completed, at which point the intangible asset will be accounted for as a definite lived intangible 
asset, or abandoned, at which point the intangible asset will be written off or partially impaired. Goodwill and indefinite lived 
intangible assets are assessed annually for impairment and whenever events or circumstances indicate that the carrying amount 
of an asset may not be recoverable. If it is determined that the full carrying amount of an asset is not recoverable, an impairment 
loss is recorded in the amount by which the carrying amount of the asset exceeds its fair value. No indicators of impairment 
were noted during the years ended December 31, 2020 and December 31, 2019.

Recent Accounting Developments - Guidance Adopted in 2020

ASU 2018-15 - In August 2018, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update 
("ASU")  2018-15,  Intangibles-Goodwill  and  Other-Internal-Use  Software  (Subtopic  350-40):  ("ASU  2018-15"),  relating  to  a 
customer’s accounting for implementation, set-up, and other upfront costs incurred in a cloud computing arrangement that is 
hosted by a vendor. Under the new guidance, a customer will apply the same criteria for capitalizing implementation costs as it 
would for an arrangement that has a software license. The new guidance does not affect the accounting for the service element 
of a hosting arrangement that is a service contract. The new guidance also prescribes the balance sheet, income statement and 
cash flow classification of the capitalized software costs and related amortization expense and requires additional quantitative 
and qualitative disclosures. ASU 2018-15 is effective for fiscal years, and interim periods within those fiscal years, beginning 
after December 15, 2019 for public companies. The Company adopted this guidance on January 1, 2020. The adoption did not 
have a material impact on the Company's Consolidated Financial Statements or related disclosures.

ASU  2018-13  -  In  August  2018,  the  FASB  issued  ASU  2018-03,  Fair  Value  Measurement  (Topic  820):  Disclosure 
Framework-Changes to the Disclosure Requirements for Fair Value Measurement ("ASU 2018-13"). The amendments modify 
the disclosure requirements in Topic 820. ASU 2018-13 is effective for all entities for fiscal years, and interim periods within 
those fiscal years, beginning after December 15, 2019. The amendments on (i) changes in unrealized gains and losses, (ii) the 
range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and (iii) the 
narrative  description  of  measurement  uncertainty  should  be  applied  prospectively  for  only  the  most  recent  interim  or  annual 
period  presented  in  the  initial  fiscal  year  of  adoption.  All  other  amendments  should  be  applied  retrospectively  to  all  periods 
presented  upon  their  effective  date.  The  Company  adopted  this  guidance  on  January  1,  2020.  The  adoption  did  not  have  a 
material impact on the Company's Consolidated Financial Statements or related disclosures.

ASU  2017-04  -  In  January  2017,  the  FASB  issued  ASU  2017-04,  Intangibles  -  Goodwill  and  Other  (Topic  350): 
Simplifying the Test for Goodwill Impairment ("ASU 2017-04"). ASU 2017-04 simplifies the recognition and measurement of 
a goodwill impairment loss by eliminating Step 2 of the quantitative goodwill impairment test. The guidance requires a one-step 
impairment  test  in  which  an  entity  compares  the  fair  value  of  a  reporting  unit  with  its  carrying  amount  and  recognizes  an 
impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value, if any. ASU 2017-04 is 
effective  for  fiscal  years  beginning  after  December  15,  2019  and  should  be  applied  on  a  prospective  basis.  The  Company 
adopted  this  guidance  on  January  1,  2020.  The  adoption  did  not  have  a  material  impact  on  the  Company's  Consolidated 
Financial Statements or related disclosures.

ASU  2016-13  -  In  June  2016,  the  FASB  issued  ASU  2016-13,  Financial  Instruments  -  Credit  Losses  (Topic  326): 
Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). ASU 2016-13 requires financial assets measured at 
amortized  cost  basis  to  be  presented  at  the  net  amount  expected  to  be  collected  and  amends  guidance  on  the  impairment  of 
financial  instruments.  ASU  2016-13  is  effective  for  public  companies  who  are  SEC  filers  for  fiscal  years  beginning  after 
December 15, 2019, including interim periods within those years. The Company adopted this guidance on January 1, 2020. The 
adoption did not have a material impact on the Company's Consolidated Financial Statements or related disclosures.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Recent Accounting Developments - Guidance Not Yet Adopted

ASU  2019-12  -  In  December  2019,  the  FASB  issued  ASU  2019-15,  Income  Taxes  (Topic  740):  Simplifying  the 
Accounting for Income Taxes ("ASU 2019-12"). This new guidance removes specific exceptions to the general principles in 
Topic 740. It eliminates the need for an organization to analyze whether the following apply in a given period: (i) exception to 
the  incremental  approach  for  intraperiod  tax  allocation;  (ii)  exceptions  to  accounting  for  basis  differences  when  there  are 
ownership changes in foreign investments; and (iii) exception in interim period income tax accounting for year-to-date losses 
that  exceed  anticipated  losses.  ASU  2019-12  also  improves  financial  statement  preparers’  application  of  income  tax-related 
guidance and simplifies the following: (i) franchise taxes that are partially based on income; (ii) transactions with a government 
that result in a step up in the tax basis of goodwill; (iii) separate financial statements of legal entities that are not subject to tax; 
and (iv) enacted changes in tax laws in interim periods. ASU 2019 is effective for fiscal years, and interim periods within those 
fiscal years, beginning after December 15, 2020. Early adoption is permitted for public business entities for periods for which 
financial statements have not yet been issued. The Company will adopt this guidance prospectively on January 1, 2021, and it 
believes  the  adoption  of  this  guidance  will  not  have  a  material  impact  on  its  Consolidated  Financial  Statements  or  related 
disclosures.

3. Acquisitions

Acquisition of Celenex

In September 2018, the Company expanded its pipeline by acquiring the rights and related intellectual property of ten 
gene therapy programs through its acquisition of Celenex, Inc., ("Celenex"). Celenex is a private, clinical stage gene therapy 
company whose lead programs are ten gene therapy programs including CLN6 and CLN3, which are in clinical stage, and 
several programs in pre-clinical stage. Pursuant to the terms of the agreement, the Company agreed to pay up to an additional 
$10  million  in  connection  with  the  achievement  of  certain  development  milestones,  $220  million  in  connection  with  the 
achievement  of  certain  regulatory  approval  milestones  across  multiple  programs  and  up  to  $75  million  in  tiered  sales 
milestone  payments.  Celenex  has  an  exclusive  license  agreement  with  Nationwide  Children’s  Hospital  ("Nationwide 
Children’s").  Under  this  license  agreement,  Nationwide  Children’s  is  eligible  to  receive  development  and  sales-based 
milestones of up to $7.8 million for each product.

The  Company  evaluated  the  Celenex  transaction  and  concluded  that  the  transaction  did  not  meet  the  definition  of  a 
business and was an asset acquisition. Given the fact that the license has no alternative future use, the $100 million upfront 
payment was expensed to research and development expense in the Consolidated Statements of Operations for the year ended 
December 31, 2018.

4. Goodwill and Intangible Assets

As of December 31, 2020, in connection with the acquisitions, the Company had goodwill of $197.8 million and	IPR&D 
of $23.0 million, which are reported at fair value on the Company's Consolidated Balance Sheets. Intangible assets related to 
IPR&D  assets  are  considered  to  be  indefinite-lived  until  the  completion  or  abandonment  of  the  associated  research  and 
development efforts. During the period the assets are considered indefinite-lived, they will not be amortized but will be tested 
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 a reduction in the fair value of the IPR&D assets below their respective carrying amounts.

Goodwill and intangible assets are assessed annually for impairment on October 1 and whenever events or circumstances 
indicate that the carrying amount of an asset may not be recoverable. If it is determined that the full carrying amount of an asset 
is  not  recoverable,  an  impairment  loss  is  recorded  in  the  amount  by  which  the  carrying  amount  of  the  asset  exceeds  its  fair 
value. 

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

The following table represents the changes in IPR&D for the years ended December 31, 2020 and 2019, respectively:

Balance at December 31, 2018

Change in IPR&D

Balance at December 31, 2019

Change in IPR&D

Balance at December 31, 2020

(in millions)

$ 

$ 

$ 

23.0 

— 

23.0 

— 

23.0 

The following table represents the changes in Goodwill for the years ended December 31, 2020 and 2019, respectively:

Balance at December 31, 2018

Change in goodwill

Balance at December 31, 2019

Change in goodwill

Balance at December 31, 2020

(in millions)

$ 

$ 

$ 

197.8 

— 

197.8 

— 

197.8 

5. Cash, Cash Equivalents, Marketable Securities, and Restricted Cash

As of December 31, 2020, the Company held $163.2 million in cash and cash equivalents and $320.0 million of marketable 
securities which are reported at fair value on the Company's Consolidated Balance Sheets. Unrealized holding gains and losses 
are generally reported within accumulated other comprehensive loss in the Statements of Comprehensive Loss. If a decline in 
the  fair  value  of  a  marketable  security  below  the  Company's  cost  basis  is  determined  to  be  other-than-temporary  or  if  an 
available-for-sale debt security’s fair value is determined to less than the amortized cost and the Company intends or is more 
than  likely  to  sell  the  security  before  recovery  and  it  is  not  considered  a  credit  loss,  such  security  is  written  down  to  its 
estimated fair value as a new cost basis and the amount of the write-down is included in earnings as an impairment charge. If 
the unrealized loss of an available-for-sale debt security is determined to be a result of credit loss the Company would recognize 
an allowance and the corresponding credit loss would be included in earnings.

The Company regularly invests excess operating cash in deposits with major financial institutions, money market funds, 
notes issued by the U.S. government, as well as fixed income investments and U.S. bond funds, both of which can be readily 
purchased  and  sold  using  established  markets.  The  Company  believes  that  the  market  risk  arising  from  its  holdings  of  these 
financial  instruments  is  mitigated  as  many  of  these  securities  are  either  government  backed  or  of  the  highest  credit  rating. 
Investments that have original maturities greater than three months but less than one year are classified as current.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Cash, cash equivalents, and marketable securities are classified as current unless mentioned otherwise below and consisted 

of the following:

(in thousands)

Cash and cash equivalents

Corporate debt securities

Commercial paper

Asset-backed securities

U.S. government agency bonds

Money market

Certificates of deposit

Included in cash and cash equivalents

Included in marketable securities 

As of December 31, 2020

Gross
Unrealized
Gain

Gross
Unrealized
Loss

Fair
Value

Cost

$ 

163,240  $ 

—  $ 

—  $ 

163,240 

39,525 

217,087 

9,420 

53,583 

350 

51 

$ 

$ 

483,256  $ 

163,240  $ 

320,016 

4 

14 

18 

3 

— 

— 

39  $ 

—  $ 

39 

39  $ 

(16)   

39,513 

(6)   

217,095 

— 

(4)   

— 

— 

9,438 

53,582 

350 

51 

(26)  $ 

483,269 

—  $ 

163,240 

(26)   

320,029 

(26)  $ 

483,269 

Total cash, cash equivalents, and marketable securities

$ 

483,256  $ 

(in thousands)

Cash and cash equivalents

Corporate debt securities

Commercial paper

Asset-backed securities

U.S. government agency bonds

Money market

Certificates of deposit

As of December 31, 2019

Gross
Unrealized
Gain

Gross
Unrealized
Loss

Fair
Value

Cost

$ 

142,837  $ 

—  $ 

—  $ 

142,837 

145,875 

73,659 

77,731 

11,999 

350 

51 

121 

53 

79 

2 

— 

— 

(5)   

(2)   

— 

(10)   

— 

— 

145,991 

73,710 

77,810 

11,991 

350 

51 

$ 

452,502  $ 

255  $ 

(17)  $ 

452,740 

Included in cash and cash equivalents
Included in marketable securities (1)
Total cash, cash equivalents, and marketable securities
______________________________
(1)  As  of  December  31,  2019,  $9.5  million  of  marketable  securities  had  maturity  dates  greater  than  12  months  and  were  available  to 
convert into cash, if needed. 

309,665 
452,502  $ 

309,903 
452,740 

255 
255  $ 

(17)   
(17)  $ 

142,837  $ 

142,837 

—  $ 

—  $ 

$ 

$ 

For the year ended December 31, 2020 there were nominal realized gains. For the fiscal year ended December 31, 2019, 

there were no realized gains or losses. The cost of securities sold is based on the specific identification method.

Unrealized  loss  positions  in  the  marketable  securities  as  of  December  31,  2020  and  2019  reflect  temporary  impairments 
and are not a result of credit loss. Additionally, as these positions have been in a loss position for less than twelve months and 
the  Company  does  not  intend  to  sell  these  securities  before  recovery,  the  losses  are  recognized  in  other  comprehensive  gain 
(loss).  The  fair  value  of  these  marketable  securities  in  unrealized  loss  positions  was  $124.9  million  and  $42.6  million  as  of 
December 31, 2020 and December 31, 2019, respectively.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated 

Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows.

(in thousands)

Cash and cash equivalents

Restricted cash
Cash, cash equivalents, and restricted cash shown in 
the Consolidated Statements of Cash Flows

December 31, 2020

December 31, 2019

December 31, 2018

$ 

$ 

163,240  $ 

142,837  $ 

2,922 

3,506 

79,749 

2,626 

166,162  $ 

146,343  $ 

82,375 

6. Inventories

Inventories  consist  of  raw  materials,  work  in  process,  and  finished  goods  related  to  the  manufacture  of  Galafold®.  The 

following table summarizes the components of inventories:

(in thousands)

Raw materials

Work-in-process

Finished goods

Total inventories

December 31, 2020 December 31, 2019

$ 

$ 

5,547  $ 

7,693 

6,316 

6,544 

3,660 

3,837 

19,556  $ 

14,041 

The Company recorded a reserve for inventory of $0.1 million and $0.2 million as of December 31, 2020 and December 

31, 2019, respectively.

7. Property and Equipment

Property and equipment consist of the following:

(in thousands)

Property and equipment consist of the following:

Computer equipment

Computer software
Research equipment
Furniture and fixtures

Leasehold improvements

Vehicles

Land

Construction in progress

Gross property and equipment

Less accumulated depreciation

Net property and equipment

December 31,

2020

2019

$ 

5,546  $ 

1,207 
15,387 
2,880 

24,146 

124 

3,190 

5,870 

6,185 

1,607 
14,568 
5,157 

30,294 

124 

3,190 

4,184 

58,350 

65,309 

(14,487)   

(17,604) 

$ 

43,863  $ 

47,705 

Depreciation expense was $8.4 million and $4.5 million for the years ended December 31, 2020 and December 31, 2019, 

respectively.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

8. Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following: 

(in thousands)

Accrued professional fees

Accrued contract manufacturing & contract research costs

Accrued compensation and benefits

Accrued program fees

Accrued royalties 

Accrued interest

Accrued milestones

Accrued sales rebates and discounts

Accrued taxes

Deferred reimbursements 

Other

December 31,

2020

2019

$ 

3,700  $ 

19,617 

23,025 

16,599 

6,550 

— 

— 

12,079 

11,177 

1,500 

2,594 

7,832 

17,800 

27,156 

17,016 

5,196 

3,679 

4,000 

5,900 

7,300 

1,250 

2,772 

$ 

96,841  $ 

99,901 

9. Stockholders' Equity

Common Stock and Warrants

As  of  December  31,  2020,  the  Company  was  authorized  to  issue  500  million  shares  of  common  stock.  Dividends  on 
common stock will be paid when, and if, declared by the board of directors. Each holder of common stock is entitled to vote on 
all matters that are appropriate for stockholder voting and is entitled to one vote for each share held.

  In  February  2021,  1,050,000  warrants  were  exercised  at  $7.06  per  share  of  common  stock  resulting  in  gross  cash 

proceeds of $7.4 million.

During  the  second  quarter  of  2019,  the  Company  completed  an  underwritten  equity  offering  and  issued  18.7  million 
shares of its common stock at $10.75 per share, inclusive of the fully exercised option to purchase additional shares from the 
initial  offering.  This  transaction  resulted  in  net  proceeds  of  $189.0  million,  after  deducting  underwriting  discounts  and 
commissions and offering expenses.

 In March 2019, 101,787 warrants were exercised at $7.98 per share of common stock resulting in gross cash proceeds 

of $0.8 million.

As  discussed  in  "—  Note  11.  Assets  and  Liabilities  Measured  at  Fair  Value",  during  the  fourth  quarter  of  2018,  the 
Company reached a clinical milestone, which was the dosing of the first patient in a Phase 3 study, related to the contingent 
consideration from the acquisition of Callidus Biopharma, Inc. ("Callidus"). The milestone for this event was $9.0 million, 
which was paid in Company common stock in the first quarter of 2019 and resulted in a $9.3 million impact on stockholder's 
equity.

 As discussed in ''— Note 12. Debt'', during the first and second quarters of 2019, the Company entered into separate, 
privately negotiated Exchange Agreements with a limited number of holders of the Convertible Notes. Under the terms of 
the Exchange Agreements, the holders of the Convertible Notes agreed to exchange an aggregate principal amount of $247.2 
million of Convertible Notes held by them in exchange for an aggregate of approximately 44.0 million shares of Company's 
common stock, par value $0.01 per share.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

In  February  2018,  the  Company  completed  an  underwritten  offering  of  20.2  million  shares  of  its  common  stock  at 
$15.50  per  share,  inclusive  of  the  fully  exercised  option  to  purchase  additional  shares  from  the  initial  offering.  This 
transaction resulted in net proceeds of $294.6 million, after deducting underwriting discounts and commissions and offering 
expenses.

In April 2018, 453,214 warrants were exercised at $7.98 per share of common stock resulting in gross cash proceeds of 

$3.6 million.

In  June  2018,  the  Company’s  stockholders  approved  an  amendment  to  the  Company’s  Restated  Certificate  of 
Incorporation to increase the number of shares of common stock, par value $0.01 per share, that the Company is authorized 
to issue from 250 million shares to 500 million shares.

Nonqualified Cash Plan

The Company's Deferral Plan, (the "Deferral Plan") provides certain key employees and members of the Board of Directors 
as selected by the Compensation Committee, with an opportunity to defer the receipt of such participant's base salary, bonus, 
and director's fees, as applicable. The Deferral Plan is intended to be a nonqualified deferred compensation plan that complies 
with the provisions of Section 409A of the Internal Revenue Code of 1986 as amended.

The Company had a deferred compensation investment balance of $4.1 million and $4.4 million as of December 31, 2020 

and December 31, 2019, respectively, with corresponding approximate amounts of liability. 

Deferral  Plan  investment  assets  are  classified  as  trading  securities  and  are  recorded  at  fair  value  with  changes  in  the 
investments'  fair  value  recognized  in  AOCI  in  the  period  they  occur.  Deferred  compensation  liability  amounts  under  the 
Deferral Plan are included in other long-term liabilities.

Equity Incentive Plan 

The Company's Amended and Restated 2007 Equity Incentive Plan (the "Plan") provides for the granting of restricted stock 
units and options to purchase common stock in the Company to employees, directors, advisors, and consultants at a price to be 
determined  by  the  Company's  Board  of  Directors.  The  Plan  is  intended  to  encourage  ownership  of  stock  by  employees  and 
consultants of the Company and to provide additional incentives for them to promote the success of the Company's business. 
Under the provisions of the Plan, no option will have a term in excess of 10 years. The Board of Directors, or its committee, is 
responsible for determining the individuals to be granted options, the number of options each individual will receive, the option 
price per share, and the exercise period of each option. Options granted pursuant to the Plan generally vest 25% on the first year 
anniversary date of grant plus an additional 1/48th for each month thereafter and may be exercised in whole or in part for 100% 
of the shares vested at any time after the date of grant. As of December 31, 2020, the Company has reserved up to 15,018,368 
shares for issuance under the Plan.

10. Share based Compensation 

The Company’s Equity Incentive Plan provides for the granting of restricted stock units and options to purchase common 
stock in the Company to employees, directors. advisors, and consultants at a price to be determined by the Company’s Board 
of  Directors.  The  Plan  is  intended  to  encourage  ownership  of  stock  by  employees  and  consultants  of  the  Company  and  to 
provide  additional  incentives  for  them  to  promote  the  success  of  the  Company’s  business.  The  Board  of  Directors,  or  its 
committee, is responsible for determining the individuals to be granted options, the number of options each individual will 
receive, the option price per share, and the exercise period of each option.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

On December 21, 2018, the Board of Directors of the Company approved an amendment (the "Amendment") to the Plan. 
The Amendment provides for certain benefits to qualifying Plan Participants who separate from service with the Company 
due to death, disability or "Retirement" (as such term is defined under the Plan) ("Qualified Participants"). Options granted 
under  the  Plan  ("Options")  to  a  Qualified  Participant  shall  continue  to  vest  until  the  2nd  anniversary  of  the  Qualified 
Participant’s separation and all vested Options held by such Qualified Participant shall remain exercisable until the earlier of 
the 4th anniversary of the Qualified Participant’s separation or the original expiration date of the Option. Options that are not 
exercised  during  this  exercise  period  shall  be  forfeited.  Time-based  restricted  stock  units  and  restricted  stock  granted  to  a 
Qualified  Participant  under  the  Plan  that  was  scheduled  to  vest  within  the  two  year  period  following  the  Qualified 
Participant's  separation  shall  accelerate  and  be  delivered  upon  such  separation.  Any  time-based  restricted  stock  units  or 
restricted stock that would have vested after such two year period will be forfeited upon the Qualified Participant's separation. 
Also, per the Amendment, any performance-based restricted stock units under the Plan ("PRSUs") received by the Qualified 
Participant, shall remain eligible to vest after the Qualified Participant’s separation based on the actual performance of the 
Company through the end of the performance period applicable to any such PRSUs.

Stock Option Grants

The  Company  uses  the  fair  value  method  of  measuring  stock-based  compensation,  using  the  fair  value  of  each  equity 
award granted. The Company chose the ‘‘straight-line’’ attribution method for allocating compensation costs and recognized 
the fair value of each stock option on a straight-line basis over the vesting period of the related awards. 

The  Company  uses  the  Black-Scholes  option  pricing  model  when  estimating  the  grant  date  fair  value  for  stock-based 
awards.  Use  of  a  valuation  model  requires  management  to  make  certain  assumptions  with  respect  to  selected  model  inputs. 
Expected volatility was based on our historical volatility since our initial public offering in May 2007. The average expected 
life is determined using our actual historical data. The risk-free interest rate is based on U.S. Treasury, zero-coupon issues with 
a  remaining  term  equal  to  the  expected  life  assumed  at  the  date  of  grant.  Forfeitures  are  estimated  based  on  voluntary 
termination behavior, as well as a historical analysis of actual option forfeitures.

The fair value of the stock options granted is estimated on the date of grant using a Black-Scholes option pricing model 

with the following weighted-average assumptions:

Expected stock price volatility

Risk free interest rate

Expected life of options (years) 
Expected annual dividend per share

Years Ended December 31,

2020

2019

2018

 75.1 %

 1.6 %

5.67

 74.1 %

 2.4 %

5.68

 78.6 %

 2.4 %

5.62

$ 

0.00 

$ 

0.00 

$ 

0.00 

The weighted average grant-date fair value per share of options granted during 2020, 2019, and 2018 were $6.40, $6.67, 

and $10.19, respectively.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

A summary of the Company's stock options for the year ended December 31, 2020 were as follows:

Number of
Shares

(in thousands)

Weighted
Average
Exercise
Price

Weighted
Average
Remaining
Years

Aggregate
Intrinsic
Value

(in millions)

Options outstanding, December 31, 2017

Granted

Exercised

Forfeited

Expired

Options outstanding, December 31, 2018

Granted

Exercised

Forfeited

Expired

Options outstanding, December 31, 2019

Granted

Exercised

Forfeited

Expired

Options outstanding, December 31, 2020

Vested and unvested expected to vest, December 31, 2020  

Exercisable at December 31, 2020

15,181  $ 

2,348  $ 

(1,398)  $ 

(313)  $ 

(8)  $ 

15,810  $ 

4,091  $ 

(1,967)  $ 

(879)  $ 

(331)  $ 

16,724  $ 

4,362  $ 

(5,243)  $ 

(1,376)  $ 

(435)  $ 

14,032  $ 

13,267  $ 

8,130  $ 

7.48 

14.96 

6.54 

9.55 

10.76 

8.63 

10.29 

5.83 

11.07 

13.38 

9.15 

9.98 

8.11 

10.42 

13.33 

9.54 

9.49 

8.86 

6.5 $ 

6.4 $ 

5.1 $ 

190.1 

180.5 

115.7 

The aggregate intrinsic value of options exercised during the years ended December 31, 2020, 2019 and 2018 was $40.9 
million,  $11.8  million,  and  $11.9  million  respectively.  Cash  proceeds  from  stock  options  exercised  during  the  years  ended 
December  31,  2020,  2019,  and  2018  were  $42.3  million,  $11.5  million,  and  $9.1  million,  respectively.  As  of  December  31, 
2020, the total unrecognized compensation cost related to non-vested stock options granted was $29.4 million and is expected 
to be recognized over a weighted average period of three years.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Restricted Stock Units and Performance-Based Restricted Stock Units (collectively "RSUs")

RSUs  awarded  under  the  Plan  are  generally  subject  to  graded  vesting  and  are  contingent  on  an  employee's  continued 
service.  RSUs  are  generally  subject  to  forfeiture  if  employment  terminates  prior  to  the  release  of  vesting  restrictions.  The 
Company  expenses  the  cost  of  the  RSUs,  which  is  determined  to  be  the  fair  market  value  of  the  shares  of  common  stock 
underlying the RSUs at the date of grant, ratably over the period during which the vesting restrictions lapse. A summary of 
non-vested RSU activity under the Plan for the year ended December 31, 2020 is as follows:

Number of
Shares

(in thousands)

Weighted
Average Grant
Date Fair
Value

Weighted
Average
Remaining
Years

Aggregate
Intrinsic
Value

(in millions)

Non-vested units as of December 31, 2017

Granted

Vested

Forfeited

Non-vested units as of December 31, 2018

Granted

Vested

Forfeited

Non-vested units as of December 31, 2019

Granted

Vested

Forfeited

Non-vested units as of December 31, 2020

2,575  $ 

1,812  $ 

(530)  $ 

(145)  $ 

3,712  $ 

3,526  $ 

(921)  $ 

(525)  $ 

5,792  $ 

4,692  $ 

(2,164)  $ 

(1,240)  $ 

7,080  $ 

5.85 

16.11 

6.01 

9.65 

10.59 

10.92 

8.49 

10.52 

11.18 

11.29 

10.70 

11.14 

11.35 

2.3 $ 

158.0 

For the year ended December 31, 2020, 2,163,732 RSUs have vested and all non-vested units are expected to vest over 
their  normal  term.  As  of  December  31,  2020,  there  was  $59.4  million  of  total  unrecognized  compensation  cost  related  to 
unvested  RSUs  with  service-based  vesting  conditions.  These  costs  are  expected  to  be  recognized  over  a  weighted  average 
period of two years.

Compensation Expense Related to Equity Awards

The following table summarizes information related to compensation expense recognized in the Consolidated Statements 

of Operations related to the equity awards:

(in thousands)

Equity compensation expense recognized in:

Research and development expense

Selling, general, and administrative expense

Total equity compensation expense

Years Ended December 31,

2020

2019

2018

$ 

$ 

20,817  $ 

17,575  $ 

28,334 

26,855 

49,151  $ 

44,430  $ 

11,740 

17,520 

29,260 

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

11. Assets and Liabilities Measured at Fair Value

The  Company's  financial  assets  and  liabilities  are  measured  at  fair  value  and  classified  within  the  fair  value  hierarchy 

which is defined as follows:

Level 1 — Quoted prices in active markets for identical assets or liabilities that the Company has the ability to 
access at the measurement date.

Level 2 — Inputs other than quoted prices in active markets that are observable for the asset or liability, either 
directly or indirectly.

Level 3 — Inputs that are unobservable for the asset or liability.

A  summary  of  the  fair  value  of  the  Company's  recurring  assets  and  liabilities  aggregated  by  the  level  in  the  fair  value 

hierarchy within which those measurements fall as of December 31, 2020 are identified in the following tables:

(in thousands)
Assets:

Commercial paper

Asset-backed securities

Corporate debt securities

U.S. government agency bonds

Money market funds

(in thousands)

Liabilities:

Contingent consideration payable

Deferred compensation plan liability

Level 2

Total

$ 

217,095  $ 

217,095 

9,438 

39,513 

53,582 

4,427 

9,438 

39,513 

53,582 

4,427 

$ 

324,055  $ 

324,055 

Level 2

Level 3

Total

$ 

$ 

—  $ 

25,825  $ 

25,825 

4,078 

— 

4,078 

4,078  $ 

25,825  $ 

29,903 

A  summary  of  the  fair  value  of  the  Company's  recurring  assets  and  liabilities  aggregated  by  the  level  in  the  fair  value 

hierarchy within which those measurements fall as of December 31, 2019 are identified in the following tables:

(in thousands)
Assets:

Commercial paper

Asset-backed securities

Corporate debt securities

U.S. government agency bonds

Money market funds

Level 2

Total

$ 

73,710  $ 

73,710 

77,810 

145,991 

11,991 

4,768 

77,810 

145,991 

11,991 

4,768 

$  314,270  $  314,270 

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

(in thousands)
Liabilities:

Contingent consideration payable

Deferred compensation plan liability

Level 2

Level 3

Total

$ 

$ 

—  $ 

22,681  $ 

22,681 

4,419 

— 

4,419 

4,419  $ 

22,681  $ 

27,100 

The Company’s Convertible Notes fall into the Level 2 category within the fair value level hierarchy. The fair value was 
determined using broker quotes in a non-active market for valuation. The fair value of the Convertible Notes at December 31, 
2020 was $10.9 million.

The Company’s Senior Secured Term Loan due 2026 falls into the Level 2 category within the fair value level hierarchy 
and  the  fair  value  was  determined  using  quoted  prices  for  similar  liabilities  in  active  markets,  as  well  as  inputs  that  are 
observable for the liability (other than quoted prices), such as interest rates that are observable at commonly quoted intervals. 
The carrying value of the Senior Secured Term Loan due 2026 approximates the fair value.

The Company did not have any Level 3 assets as of December 31, 2020 or December 31, 2019.

Cash, Money Market Funds and Marketable Securities

The Company classifies its cash within the fair value hierarchy as Level 1 as these assets are valued using quoted prices in 
an active market for identical assets at the measurement date. The Company considers its investments in marketable securities 
as available-for-sale and classifies these assets and the money market funds within the fair value hierarchy as Level 2 primarily 
utilizing broker quotes in a non-active market for valuation of these securities. No changes in valuation techniques or inputs 
occurred  during  the  year  ended  December  31,  2020.  No  transfers  of  assets  between  Level  1  and  Level  2  of  the  fair  value 
measurement hierarchy occurred during the year ended December 31, 2020.

Contingent Consideration Payable

The contingent consideration payable resulted from the acquisition of Callidus. The most recent valuation was determined 
using  a  probability  weighted  discounted  cash  flow  valuation  approach.  Gains  and  losses  are  included  in  the  Consolidated 
Statements of Operations.

The  contingent  consideration  payable  for  Callidus  has  been  classified  as  a  Level  3  recurring  liability  as  its  valuation 
requires substantial judgment and estimation of factors that are not currently observable in the market. If different assumptions 
were used for the various inputs to the valuation approach, the estimated fair value could be significantly higher or lower than 
the fair value the Company determined. 

The  following  significant  unobservable  inputs  were  used  in  the  valuation  of  the  contingent  consideration  payable  of 

Callidus for the ATB-200 Pompe program:

Contingent Consideration 
Liability

Fair Value as of 
December 31, 2020

(in thousands)

Valuation Technique

Unobservable Input

Range

Clinical and regulatory 
milestones

$ 

25,101 

Probability weighted 
discounted cash flow

Discount rate
Probability of achievement 
of milestones
Projected year of payments

7.5%

75%-78%

2021-2022

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Contingent consideration liabilities are remeasured to fair value each reporting period using discount rates, probabilities of 
payment,  and  projected  payment  dates.  Projected  contingent  payment  amounts  related  to  clinical  and  regulatory  based 
milestones are discounted back to the current period using a discounted cash flow model. Increases in discount rates and the 
time  to  payment  may  result  in  lower  fair  value  measurements.  Increases  or  decreases  in  any  of  those  inputs  together,  or  in 
isolation, may result in a significantly lower or higher fair value measurement. There is no assurance that any of the conditions 
for the milestone payments will be met.

During the fourth quarter of 2018, the Company reached a clinical milestone, which was the dosing of the first patient in a 
Phase  3  study,  related  to  the  contingent  consideration  from  the  acquisition  of  Callidus.  The  milestone  for  this  event  was 
$9.0 million, which was paid in Company common stock in the first quarter of 2019 and resulted in a $9.3 million impact on 
stockholder's equity.

The following table shows the change in the balance of contingent consideration payable for the year ended December 31, 

2020 and December 31, 2019, respectively:

(in thousands)

Balance, beginning of the period
Changes in fair value during the period, included in the Consolidated Statements 
of Operations 

Adjustment for contingent consideration paid in stock

Balance, end of the period

Years ended December 31,

2020

2019

$ 

22,681  $ 

19,700 

3,144 

— 

3,297 

(316) 

$ 

25,825  $ 

22,681 

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12. Debt 

Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

The Company's debt consists of the following: 

(in thousands)
Senior Secured Term Loan due 2026:

Principal
Less: debt discount (1)
Less: deferred financing (1)
Net carrying value of the Senior Secured Term Loan

Senior Secured Term Loan due 2023 (2):

Principal
Less: debt discount (1)
Less: deferred financing (1)
Net carrying value of the Senior Secured Term Loan

Convertible Notes (3):

Principal
Less: debt discount (1)
Less: deferred financing (1)
Net carrying value of the Convertible Notes

December 31, 2020

December 31, 2019

$ 

$ 

$ 

$ 

$ 

$ 

400,000  $ 

(7,434) 

(5,592) 

386,974  $ 

— 

— 

— 

— 

—  $ 

150,000 

— 

— 

(2,315) 

(311) 

—  $ 

147,374 

2,825  $ 

(518) 

(27) 

2,280  $ 

2,825 

(659) 

(35) 

2,131 

Net carrying value of Long-term debt
______________________________
(1)  Included  in  the  Consolidated  Balance  Sheets  within  long-term  debt  and  amortized  to  interest  expense  over  the  remaining  life  of  the 
Convertible Notes and Senior Secured Term Loans using the effective interest rate method.
(2) The principle, accrued interest and early settlement premiums associated with the Senior Secured Term Loan due 2023 were fully paid and 
settled in July 2020.
(3) The Convertible Notes are currently convertible as the last reported sale price of the Company's common stock was equal to or more than 
130% of the conversion price for at least 20 trading days of the 30 consecutive trading days ending on the last day of the quarter.

389,254  $ 

149,505 

$ 

Senior Secured Term Loan due 2026

In  July  2020,  the  Company  entered  into  a  definitive  agreement  for  a  $400  million  credit  facility  with  Hayfin  Capital 
Management (“Senior Secured Term Loan due 2026”) with an interest rate equal to 3-month LIBOR, subject to a 1% floor, plus 
6.5% per annum and requires interest-only payments until mid-2024. The Senior Secured Term Loan due 2026 will be repaid in 
nine quarterly payments of $44.4 million, starting on July 2024 with the final balance due on the maturity date in July 2026. 
This transaction resulted in net proceeds of $385.9 million, after deducting fees and expenses. There were no warrants or equity 
conversion features associated with the Senior Secured Term Loan due 2026. The Company used the proceeds to voluntarily 
settle  the  Senior  Secured  Term  Loan  with  BioPharma  Credit  PLC  that  was  due  in  2023  ("Senior  Secured  Term  Loan  due 
2023").

The Senior Secured Term Loan due 2026 is subject to mandatory prepayment provisions that require prepayment upon a 
change of control, the incurrence of certain additional indebtedness, asset sale, or an event of loss, subject to certain conditions 
set forth in the Senior Secured Term Loan due 2026. The Company may prepay the Senior Secured Term Loan due 2026 in 
whole, at its option at any time. Any prepayment of the Senior Secured Term Loan due 2026 is subject to certain make-whole 
premiums and prepayment premiums, the latter of which decrease until the fourth anniversary of the transaction date at which 
point no prepayment penalty shall exist. The obligations under the Senior Secured Term Loan due 2026 are secured by a first 
lien  security  interest  in  certain  assets  of  the  Company.  The  Senior  Secured  Term  Loan  due  2026  contains  certain  customary 
representations and warranties, affirmative and negative covenants and events of default applicable to the Company. The Senior 
Secured  Term  Loan  due  2026  also  contains  a  minimum  liquidity  covenant  of  $75  million,  and  an  incremental  minimum 
consolidated  revenue  covenant,  measured  as  of  the  previous  four  consecutive  fiscal  quarters.  The  minimum  consolidated 

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

revenue covenant ranges from $140 million, beginning March 31, 2021, and peaks at $225 million by June 30, 2023, continuing 
at  that  level  until  the  Senior  Secured  Term  Loan  due  2026  is  repaid.  If  an  event  of  default  occurs  and  is  continuing,  Hayfin 
Capital Management may declare all amounts outstanding under the Senior Secured Term Loan due 2026 to be immediately 
due and payable.

Senior Secured Term Loan due 2023

In  September  2018,  the  Company  entered  into  a  loan  agreement  with  BioPharma  Credit  PLC  (“Senior  Secured  Term 
Loan due 2023") as the lender. The loan agreement provided for a $150 million senior secured term loan with an interest rate 
equal to the 3-month LIBOR plus 7.5% per annum and would mature in 5 years from the maturity date. The Senior Secured 
Term  Loan  due  2023  would  be  repaid  in  four  quarterly  payments  equal  to  12.5%  thereof  starting  on  the  forty-eight  month 
anniversary of the date of the first credit extension with the balance due on the Maturity Date. Interest was payable quarterly in 
arrears. The Senior Secured Term Loan due 2023 contained certain customary representations and warranties, affirmative and 
negative  covenants,  and  events  of  default  applicable  to  the  Company  and  certain  of  its  subsidiaries  but  did  not  include  any 
financial covenants relating to the achievement or maintenance of revenue or cash flow. If an event of default occurred and was 
continuing, the lender could declare all amounts outstanding under the Senior Secured Term Loan due 2023 to be immediately 
due and payable. The Company received net proceeds of $146.6 million in September 2018, after deducting fees and expenses.

In  July  2020,  the  Company  used  $156.3  million  of  the  proceeds  from  the  Senior  Secured  Term  Loan  due  2026  to 
voluntarily settle the principal amount, $1.1 million accrued interest, and $5.2 million in early settlement premiums. As a result 
of  this  early  extinguishment,  the  Company  recognized  a  loss  on  extinguishment  of  debt  of  $7.3  million  in  the  Consolidated 
Statements of Operations.

Convertible Notes 

In  December  2016,  the  Company  issued  at  par  value  $250  million  aggregate  principal  amount  of  Convertible  Notes, 
which  included  the  exercise  in  full  of  the  $25  million  over-allotment  option  granted  to  the  initial  purchasers  of  the 
Convertible Notes in a private offering to qualified institutional buyers pursuant to Rule 144A under the Securities Act (the 
"Note Offering"). Interest is payable semiannually on June 15 and December 15 of each year, beginning on June 15, 2017. 
The Convertible Notes will mature on December 15, 2023, unless earlier repurchased, redeemed, or converted in accordance 
with their terms. The Convertible Notes are convertible at the option of the holders of the Convertible Notes (the "Holders"), 
under certain circumstances and during certain periods, into cash, shares of the Company’s common stock or a combination 
thereof.  The  net  proceeds  from  the  Note  Offering  were  $243.0  million,  after  deducting  fees  and  expenses.  In  addition,  the 
Company used approximately $13.5 million of the net proceeds from the issuance of the Convertible Notes to pay the cost of 
the capped call transactions ("Capped Call Confirmations") that the Company entered into in connection with the issuance of 
the Convertible Notes. In accounting for the issuance of the Convertible Notes, the Company separated the Convertible Notes 
into  liability  and  equity  components  based  on  their  relative  values.  The  Convertible  Notes  were  initially  convertible  into 
approximately  40.8  million  shares  of  the  Company’s  common  stock  under  certain  circumstances  prior  to  maturity  at  a 
conversion rate of 163.3987 shares per $1,000 principal amount of Convertible Notes, which represents a conversion price of 
approximately $6.12 per share of common stock, subject to adjustment under certain conditions. Holders may convert their 
Convertible Notes at their option at specified times prior to the maturity date of December 15, 2023, only if: 

•

•

during  any  fiscal  quarter  commencing  after  March  31,  2017,  if  the  last  reported  sale  price  of  the  Company’s 
common stock for at least 20 trading days in the period of 30 consecutive trading days ending on the last trading 
day of the immediately preceding fiscal quarter is equal to or more than 130% of the conversion price of the 
Convertible Notes on the last day of such preceding fiscal quarter; 

a  holder  submits  its  Convertible  Notes  for  conversion  during  the  five  business  day  period  following  any  five 
consecutive  trading  day  period  in  which  the  trading  price  for  the  Convertible  Notes,  per  $1,000  principal 
amount of the Convertible Notes, for each such trading day was less than 98% of the product of the last reported 
sale price of the Company’s common stock and the conversion rate of the Convertible Notes on such date; 

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

•

•

•

the Company issues to all or substantially all of the holders of common stock rights options or warrants entitling 
then  them  for  a  period  of  not  more  than  60  calendar  days  after  the  date  of  such  issuance  to  subscribe  for  or 
purchase shares of the common stock, at a price per share less than the average of the Last Reported Sale Prices 
of  the  common  stock  for  the  10  consecutive  Trading  Day  period  ending  on,  and  including,  the  Trading  Day 
immediately  preceding  the  date  of  announcement  of  such  issuance  or  distributes  to  all  or  substantially  all 
holders  of  the  common  stock  the  Company’s  assets,  debt  securities  or  rights  to  purchase  the  Company’s 
securities  which  distribution  has  a  per  share  value  of  exceeding  10%  of  the  Last  Reported  Sale  Price  of  the 
common stock on the Trading Day immediately preceding the date of announcement of such distribution; 

the Company enters into specified corporate transactions; or 

the Company has had a call for redemption, the holder can convert up until the second trading day immediately 
preceding the redemption date.

The Convertible Notes will be convertible, at the option of the note holders, regardless of whether any of the foregoing 
conditions  have  been  satisfied,  on  or  after  September  15,  2023  at  any  time  prior  to  the  close  of  business  on  the  second 
scheduled trading day immediately preceding the stated maturity date of December 15, 2023.

During  the  first  and  second  quarters  of  2019,  the  Company  entered  into  separate,  privately  negotiated  Exchange 
Agreements  with  a  limited  number  of  holders  of  the  Convertible  Notes.  Under  the  terms  of  the  Exchange  Agreements,  the 
limited number of Holders agreed to exchange an aggregate principal amount of $247.2 million of Convertible Notes held by 
them in exchange for an aggregate of approximately 44.0 million shares of Company common stock, par value $0.01 per share. 
In addition, pursuant to the Exchange Agreements, the Company made aggregate cash payments of $1.3 million to the limited 
number  of  Holders  to  satisfy  accrued  and  unpaid  interest  to  the  closing  date  of  the  transactions,  along  with  cash  in  lieu  of 
fractional shares. These transactions resulted in $215.0 million in additional paid-in-capital and common stock of $0.4 million 
on the Consolidated Balance Sheets as of December 31, 2019. Additionally, the Company recognized a loss on the exchange of 
debt  of  $40.6  million  on  the  Consolidated  Statements  of  Operations  during  the  year  ended  December  31,  2019.  During  the 
second half of the year ended December 31, 2019, there were no additional debt conversion transactions.	

During  the  first  and  second  quarter  of  2019,  the  Company  terminated  the  Capped  Call  Confirmations  related  to  the 

exchange of the Convertible Notes for proceeds of $19.9 million.

Interest Expense

The following table sets forth interest expense recognized related to the Company's debt for the years ended December 31, 

2020 and 2019 respectively:

(in thousands)

Contractual interest expense
Amortization of debt discount

Amortization of deferred financing

December 31, 
2020

December 31, 
2019

$  20,933 
1,267 
$ 

$  16,483 
2,381 
$ 

$ 

527 

$ 

165 

Effective interest rate of the liability component, Convertible debt
Effective interest rate of the liability component, Senior Secured Term Loan due 2026

Effective interest rate of the liability component, Senior Secured Term Loan due 2023

 10.6 %
 8.4 %

 — %

 10.6 %
 — %

 10.2 %

13. Leases

The  Company  currently  has  operating  leases  for  office  and  research  laboratory  space,  equipment,  and  vehicles  under 
agreements expiring at various dates through 2044, which include renewal options on leases which the Company is reasonably 
certain to exercise.

For  the  years  ended  December  31,  2020,  and  2019,  the  operating  lease  expense  was  $11.1  million  and  $10.8  million, 
respectively. For the years ended December 31, 2020, and 2019, the Company paid $9.6 million and $4.9 million, respectively, 

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

for  amounts  included  in  the  measurement  of  operating  lease  liabilities  and  recorded  $1.7  million  and  $21.8  million, 
respectively, of right-of-use assets and $0.5 million and $19.4 million, respectively of tenant improvements paid through lease 
incentives in exchange for new operating lease liabilities.

Commitments under finance leases are not significant for the years ended December 31, 2020, and 2019.

Supplemental balance sheet information related to operating leases were as follows:

(in thousands, except year and discount rate amounts)
Operating lease ROU asset

Current portion of the operating lease liabilities
Non-current portion of the operating lease liabilities
Total operating lease liability

Weighted-average remaining lease terms (years)
Weighted-average discount rate

December 31, 2020

December 31, 2019

$ 

$ 

$ 

23,296 

6,872 
45,604 
52,476 

$ 

$ 

$ 

33,315 

7,189 
53,531 
60,720 

19.8
 13.0 %

18.2
 13.1 %

At December 31, 2020, the future minimum operating lease payments were as follows:

(in thousands)

2021

2022

2023

2024

2025

Thereafter

Total lease payments

Less lease incentives

Less imputed interest

Total operating lease liability

At December 31, 2019, the future minimum operating lease payments were as follows:

(in thousands)

2020

2021

2022

2023

2024

Thereafter

Total lease payments

Less lease incentives

Less imputed interest

Total operating lease liability

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Operating Lease

$ 

8,549 

8,494 

8,691 

8,404 

8,371 

153,241 

195,750 

(28,939) 

(114,335) 

$ 

52,476 

Operating Lease

$ 

$ 

9,738 

10,787 

10,459 

10,809 

10,582 

163,266 

215,641 

(28,939) 

(125,982) 

$ 

60,720 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Rent expense, including fees for utilities and common area maintenances under ASC 840 for the year ended December 31, 

2018 was $5.7 million.

14. Income Taxes

For financial reporting purposes, loss before income taxes includes the following components:

(in thousands)

United States

Foreign

Total

Years Ended December 31,

2020

2019

2018

$ 

(365,332)  $ 

(393,955)  $ 

(309,183) 

91,078 

38,045 

(39,906) 

$ 

(274,254)  $ 

(355,910)  $ 

(349,089) 

Following were the components of income tax expense (benefit) for the years ended December 31, 2020, 2019, and 2018:

(in thousands)
Current

Federal
State
Foreign
Deferred
Federal
State
Foreign

Total

2020

2019

2018

$ 

$ 

—  $ 
— 
4,163 

—  $ 
— 
2,877 

(1,410)   
(155)   
— 
2,598  $ 

(984)   
(1,415)   
— 
478  $ 

— 
6 
(100) 

— 
— 
— 
(94) 

A reconciliation of the statutory tax rates and the effective tax rates for the years ended December 31, 2020, 2019, and 

2018 are as follows:

Statutory rate
State taxes, net of federal benefit
Nondeductible IPR&D

Contingent consideration

Tax credits

Impact of foreign operations

Nondeductible executive compensation

Nondeductible debt conversion

Other

Valuation allowance

Net

Years Ended
December 31,

2020

2019

2018

 (21) %
 — 
 — 

 — 

 (7) 

 4 

 2 

 — 

 — 

 23 

 (21) %
 — 
 — 

 — 

 (16) 

 9 

 1 

 (1) 

 (1) 

 29 

 (21) %
 (4) 
 6 

 1 

 (10) 

 2 

 — 

 — 

 — 

 26 

 1 %

 — %

 — %

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

On December 22, 2017, the U.S. government enacted the Tax Cuts and Jobs Act ("Tax Act"). The Tax Act significantly 
revises  U.S.  tax  law  by,  among  other  provisions,  lowering  the  U.S.  federal  statutory  income  tax  rate  to  21%,  imposing  a 
mandatory  one-time  transition  tax  on  previously  deferred  foreign  earnings,  and  eliminating  or  reducing  certain  income  tax 
deductions. The Tax Act also introduced an additional U.S. tax on certain non-U.S. subsidiaries’ earnings which are considered 
to  be  Global  Intangible  Low  Taxed  Income  (referred  to  as  "GILTI").  After  consideration  of  the  relevant  guidance  and 
completing the accounting for the tax effects of the Tax Act, the Company has elected to treat GILTI as a period cost. 

The Company recorded an income tax expense of $4.2 million in 2020 for taxes in foreign jurisdictions and a $1.6 million 

tax benefit in 2020 for taxes in U.S. federal and state jurisdictions.

The Company did not recognize interest or penalties related to income tax during the period ended December 31, 2020 and 
did  not  accrue  for  interest  or  penalties  as  of  December  31,  2020.  The  Company  does  not  have  an  accrual  for  uncertain  tax 
positions as of December 31, 2020. Tax returns for years 2015 through 2019 are open to examination by tax authorities. The 
Company is also subject to examination in any period for which it has net operating losses.

Deferred income taxes reflect the net effect of temporary difference between the carrying amounts of assets and liabilities 
for financial reporting purposes and the amounts used for income tax purposes. The significant components of the deferred tax 
assets and liabilities are as follows:

(in thousands)

Deferred tax assets

Intellectual property

Amortization/depreciation

Research tax credit

Net operating loss carry forwards

Deferred reimbursements

Non-cash stock issue

Interest carry forward limitation

Lease liability

Other

Gross deferred tax assets

Deferred tax liabilities
Business acquisition

Royalty payable
Convertible notes

Advanced R&D payments

Right of use asset

Total net deferred tax assets

Less: valuation allowance

Net deferred tax liability

Years Ended
December 31,

2020

2019

$ 

68,209  $ 

46,521 

489 

182,651 

305,876 

1,912 

17,553 

5,655 

9,235 

10,855 

602,435 

2,329 

141,669 

286,850 

2,230 

19,058 

2,224 

6,983 

13,921 

521,785 

(4,937)   

(5,051) 

(68,209)   
(94)   

(1,776)   

(3,420)   

(46,521) 
(653) 

(2,611) 

(5,643) 

523,999 

461,306 

(528,895)   

(466,357) 

$ 

(4,896)  $ 

(5,051) 

The  Company  records  a  valuation  allowance  for  temporary  differences  for  which  it  is  more  likely  than  not  that  the 
Company will not receive future tax benefits. At December 31, 2020 and 2019, the Company recorded valuation allowances of 
$528.9 million and $466.4 million, respectively, representing an increase in the valuation allowance of $62.5 million in 2020, 
due  to  the  uncertainty  regarding  the  realization  of  such  deferred  tax  assets,  to  offset  the  benefits  of  net  operating  losses 
generated  during  those  years.  The  deferred  tax  liability  related  to  business  acquisitions  pertains  to  the  basis  difference  in 
IPR&D acquired by the Company. The Company's policy is to record a deferred tax liability related to acquired IPR&D that 
may eventually be realized either upon amortization of the asset when the research is completed, and a product is successfully 
launched or the write-off of the asset if it is abandoned or unsuccessful.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

As of December 31, 2020, the Company had federal and state net operating loss carry forwards ("NOLs") of approximately 
$1,156  million  and  $889.4  million,  respectively.  The  federal  carry  forward  for  losses  generated  prior  to  2018  will  expire  in 
2029 through 2037. Federal net operating losses incurred in 2018 and onward have an indefinite expiration under the 2017 Tax 
Act. Most of the state carry forwards generated prior to 2009 have expired through 2016. The remaining state carry forwards 
including  those  generated  in  2009  through  2020  will  expire  in  2029  through  2040.  Utilization  of  NOLs  may  be  subject  to  a 
substantial  limitation  pursuant  to  Section  382  of  the  Internal  Revenue  Code  of  1986,  as  amended  (  the  "Code")  as  well  as 
similar state statutes in the event of an ownership change. Such ownership changes have occurred in the past and could occur 
again  in  the  future.  Under  Section  382  of  the  Internal  Revenue  Code  of  1986,  as  amended,  or  Section  382,  if  a  corporation 
undergoes an "ownership change," generally defined as a greater than 50% change (by value) in its equity ownership over a 
three-year period, the corporation's ability to use its pre-change NOLs and other pre-change tax attributes (such as research and 
development tax credits) to offset its post-change income may be limited. The Company may experience ownership changes in 
the  future  as  a  result  of  shifts  in  the  stock  ownership  some  of  which  are  outside  the  Company's  control.  The  Company 
completed a detailed study of the NOLs and determined that there was not an ownership change in excess of 50%. Ownership 
changes in future periods may place additional limits on the Company's ability to utilize net operating loss and tax credit carry 
forwards. In addition, at the state level, there may be periods during which the use of NOLs is suspended or otherwise limited, 
which could accelerate or permanently decrease the amount of state attributes and increase state taxes owed. 

The Company also has research and experimentation and orphan drug credit carryforwards of approximately $30.4 million 
and $141.8 million, respectively, which will expire in the years 2021 through 2040. Deferred tax assets for these carryforwards 
are subject to a full valuation allowance.

15. Collaborative Agreements

University of Pennsylvania

In  October  2018,  as  amended,  the  Company  entered  into  a  collaboration  agreement  with  Penn  to  pursue  research  and 
development  of  novel  gene  therapies.  The  Company's  gene  therapy  portfolio  pipeline  expanded  to  include  Pompe  disease, 
Fabry disease, CDD, CLN1, MPS IIIB, as well as a next generation program in MPS IIIA. This expanded collaboration with 
Penn  also  provides  the  Company  with  exclusive  disease-specific  access  and  option  rights  to  develop  potentially  disruptive 
new gene therapy platform technologies and programs for most LDs and a broader portfolio of rare diseases, including Rett 
Syndrome, Angelman Syndrome, Myotonic Dystrophy, and select other muscular dystrophies. 

Under  the  expanded  collaboration  agreement  with  Penn,  Penn  is  eligible  to  receive  certain  milestone,  royalty  and 
discovery research payments with respect to licensed products for each indication. Milestone payments are payable following 
the  achievement  of  certain  development  and  commercial  milestone  events  in  each  indication,  up  to  an  aggregate  of 
$88.0 million per indication. Royalty payments are based on net sales of licensed products on a licensed product-by-licensed 
product and country- by-country basis. The Company will provide $10.0 million each year during the five-year agreement to 
fund the discovery research program. In connection with the collaboration agreement, the Company made an upfront payment 
of $7 million in cash to Penn in 2018 that was expensed to research and development expense in the Consolidated Statements 
of Operations. 

GlaxoSmithKline

In July 2012, as amended in November 2013, the Company entered into an agreement with GlaxoSmithKline ("GSK"), 
pursuant  to  which  Amicus  obtained  global  rights  to  develop  and  commercialize  Galafold®  as  a  monotherapy  and  in 
combination  with  ERT  for  Fabry  disease  (“Collaboration  Agreement”).  Under  the  terms  of  the  Collaboration  Agreement, 
GSK is eligible to receive post-approval and sales-based milestones up to $40 million, as well as tiered royalties in the mid-
teens in eight major markets outside the U.S. 

The  contingent  milestone  payments  due  to  GSK  are  recorded  within  the  short  term  and  long  term  deferred 
reimbursements accounts on the Consolidated Balance Sheets. Sales based tiered royalties due to GSK are recorded within 
the cost of goods sold within the Consolidated Statements of Operations.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

For  the  year  ended  December  31,  2020,  under  the  GSK  collaboration  agreements,  the  Company  paid  $1.3  million  in 
sales-based  milestones  and  the  Company  incurred  approximately  $21.7  million  of  royalty  expenses.  As  of  December  31, 
2020, $8.9 million was recorded as deferred reimbursements and the Company recognized a liability of $6.6 million related 
to royalties payable to GSK in accounts payable and accrued expenses in the Consolidated Balance Sheets.

16. Basic and Diluted Net Loss per Common Share

The following table provides a reconciliation of the numerator and denominator used in computing basic and diluted net 

loss attributable to common stockholders per common share:

(in thousands, except per share amounts)

Numerator:

Years Ended December 31,

2020

2019

2018

Net loss attributable to common stockholders

$ 

(276,852)  $ 

(356,388)  $ 

(348,995) 

Denominator:

Weighted average common shares outstanding — basic and diluted

  258,867,380 

  240,421,001 

  185,790,021 

Dilutive common stock equivalents would include the dilutive effect of common stock options, convertible debt units, 
RSUs  and  warrants  for  common  stock  equivalents.  Potentially  dilutive  common  stock  equivalents  were  excluded  from  the 
diluted earnings per share denominator for all periods because of their anti-dilutive effect. 

The table below presents potential shares of common stock that were excluded from the computation as they were anti-

dilutive using the treasury stock method:

(in thousands)

Options to purchase common stock

Convertible notes

Outstanding warrants, convertible to common stock

Unvested restricted stock units

Years ended December 31,
2019

2018

2020

14,032 

16,724 

462 

2,555 

7,080 

462 

2,555 

5,792 

15,810 

40,850 

2,657 

3,712 

63,029 

Total number of potentially issuable shares

24,129 

25,533 

17. Selected Quarterly Financial Data (Unaudited)

(in thousands except per share data)
2020

Net product sales

Net loss
Basic and diluted net loss per common share (1)
2019

Net product sales

Net loss
Basic and diluted net loss per common share (1)
_______________________________

$ 

$ 

$ 

$ 

$ 

$ 

March 31

June 30

September 30

December 31

Quarters Ended

60,525  $ 

62,353  $ 

67,437  $ 

70,571 

(88,948)  $ 

(52,492)  $ 

(64,011)  $ 

(71,401) 

(0.35)  $ 

(0.20)  $ 

(0.25)  $ 

(0.27) 

34,046  $ 

44,130  $ 

48,768  $ 

55,293 

(120,299)  $ 

(84,551)  $ 

(61,809)  $ 

(89,729) 

(0.56)  $ 

(0.36)  $ 

(0.24)  $ 

(0.35) 

(1) Per common share amounts for the quarters and full years have been calculated separately. Accordingly, quarterly amounts do not 
add to the annual amounts because of differences on the weighted-average common shares outstanding during each period principally 
due to the effect of the Company issuing shares of its common stock during the year.

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Amicus Therapeutics, Inc.

Notes To Consolidated Financial Statements — (Continued)

Item 9.    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL 
DISCLOSURE.

None.

Item 9A.    CONTROLS AND PROCEDURES.

Evaluation of Disclosure Controls and Procedures

Our  management,  with  the  participation  of  our  principal  executive  officer  and  principal  financial  officer,  evaluated  the 
effectiveness  of  our  disclosure  controls  and  procedures  as  of  December  31,  2020.  The  term  "disclosure  controls  and 
procedures," as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a 
company that are designed to ensure that information required to be disclosed by us in the reports that we file or submit under 
the  Exchange  Act  is  recorded,  processed,  summarized  and  reported  within  the  time  periods  specified  in  the  SEC  rules  and 
forms.  Disclosure  controls  and  procedures  include,  without  limitation,  controls  and  procedures  designed  to  ensure  that 
information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated 
and  communicated  to  the  Company's  management,  including  its  principal  executive  and  principal  financial  officers,  as 
appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, 
no  matter  how  well  designed  and  operated,  can  provide  only  reasonable  assurance  of  achieving  their  objectives  and 
management  necessarily  applies  its  judgment  in  evaluating  the  cost-benefit  relationship  of  possible  controls  and  procedures. 
Based on the evaluation of our disclosure controls and procedures as of December 31, 2020, our principal executive officer and 
principal  financial  officer  concluded  that,  as  of  such  date,  our  disclosure  controls  and  procedures  were  effective  at  the 
reasonable assurance level.

There have been no changes in our internal controls over financial reporting during the fourth quarter of the year ended 
December  31,  2020  that  have  materially  affected,  or  are  reasonably  likely  to  materially  affect,  our  internal  controls  over 
financial reporting.

Management's Report on Internal Control Over Financial Reporting

The information required by this section which includes the "Management's Report on Consolidated Financial Statements 
and  Internal  Control  over  Financial  Reporting"  and  the  "Report  of  Independent  Registered  Public  Accounting  Firm"  are 
incorporated by reference from "Item 8. Financial Statements and Supplementary Data."

Item 9B.    OTHER INFORMATION.

None.

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Table of Contents

PART III

Certain  information  required  by  Part  III  is  omitted  from  this  Annual  Report  on  Form  10-K  as  we  intend  to  file  our 
definitive proxy statement for our 2021 annual meeting of stockholders, pursuant to Regulation 14A of the Securities Exchange 
Act,  not  later  than  120  days  after  the  end  of  the  fiscal  year  covered  by  this  Annual  Report  on  Form  10-K,  and  certain 
information to be included in the proxy statement is incorporated herein by reference.

Item 10.    DIRECTORS, EXECUTIVE OFFICERS OF THE REGISTRANT AND CORPORATE GOVERNANCE.

The  information  required  by  this  item  is  incorporated  by  reference  from  the  Proxy  Statement  under  the  caption 

"Management," "Section 16(a) Beneficial Ownership Reporting Compliance," and "Proposal No. 1 — Election of Directors"

We have adopted a Code of Business Ethics and Conduct for Employees, Executive Officers and Directors that applies to 
our employees, officers and directors and incorporate guidelines designed to deter wrongdoing and to promote the honest and 
ethical conduct and compliance with applicable laws and regulations. In addition, the code of ethics incorporates our guidelines 
pertaining to topics such as conflicts of interest and workplace behavior. We have posted the text of our code on our website at 
www.amicusrx.com in connection with "Investors/Corporate Governance" materials. In addition, we intend to promptly disclose 
(1) the nature of any amendment to our code of ethics that applies to our principal executive officer, principal financial officer, 
principal accounting officer or controller, or persons performing similar functions and (2) the nature of any waiver, including an 
implicit waiver, from provision of our code of ethics that is granted to one of these specified officers, the name of such person 
who is granted the waiver and the date the waiver on our website in the future.

Item 11.    EXECUTIVE COMPENSATION.

The  information  required  by  this  item  is  incorporated  by  reference  from  the  Proxy  Statement  under  the  caption 

"Compensation Discussion and Analysis."

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 the Proxy Statement under the captions "Security 
Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters" and "Equity Compensation Plan 
Information."

Item 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE.

The information required by this item is incorporated by reference from the Proxy Statement under the captions "Certain 
Relationships and Related Transactions," "Director Independence," "Committee Compensation and Meetings of the Board of 
Directors," and "Compensation Committee Interlock and Insider Participation."

Item 14.    PRINCIPAL ACCOUNTING FEES AND SERVICES.

The information required by this item is incorporated by reference from the Proxy Statement.

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Item 15.    EXHIBITS, FINANCIAL STATEMENT SCHEDULE

PART IV

1. Consolidated Financial Statements

The Consolidated Financial Statements are filed as part of this report.

2. Consolidated Financial Statement Schedules

All schedules are omitted because they are not required or because the required information is included in the Consolidated 

Financial Statements or notes thereto.

3. Exhibits 

Exhibit
No.

Filed Exhibit Description

2.1 Agreement and Plan of Merger, dated November 19, 
2013, by and among Amicus Therapeutics, Inc., CB 
Acquisition Corp., Callidus BioPharma, Inc., and 
Cuong Do

Incorporated by Reference
to SEC Filing

Form

Form 8-K

Date
2/12/2014

2.2 Amendment to Agreement and Plan of Merger, dated 

Form 8-K

9/30/2015

September 30, 2015, by and among the Registrant, 
Titan Merger Sub Corp. and Scioderm, Inc.

+2.3 Agreement and Plan of Merger, dated July 5, 2016, 

Form 8-K

7/6/2016

by and among MiaMed, Inc., the Registrant and 
Minervas Merger Sub, Inc.

+2.4 Agreement and Plan of Merger, dated as of 
September 19, 2018, by and among Amicus 
Therapeutics, Inc., Columbus Merger Sub Corp., 
Celenex, Inc. and Shareholder Representative 
Services LLC, solely in its capacity as the 
Shareholders’ Representative

Form 8-K

9/25/2018

3.1 Restated Certificate of Incorporation of the 

Form 10-K

2/28/2012

Registrant.

3.2 Restated By-laws of the Registrant.

3.3 Certificate of Amendment to the Registrant's 

Restated Certificate of Incorporation, as amended.

S-1/A (333-141700)

4/27/2007

Form 8-K

6/10/2015

3.4 Certificate of Amendment to the Restated Certificate 

Form 8-K

6/8/2018

of Incorporation

4.1 Specimen Stock Certificate evidencing shares of 

S-1 (333-141700)

3/30/2007

common stock

4.2 Third Amended and Restated Investor Rights 

S-1 (333-141700)

3/30/2007

Agreement, dated as of September 13, 2006, as 
amended

4.3 Form of Warrant to Purchase Common Stock

4.4 Form of Warrant to Purchase Common Stock

4.5 Indenture, dated December 21, 2016, by and between 
the Registrant and Wilmington Trust, National 
Association

4.6 Form of Indenture
4.7 Description of the Registrant's securities

*10.1 2002 Equity Incentive Plan, as amended, and forms 

of option agreements thereunder

-129-

Form 8-K

Form 8-K

Form 8-K

2/22/2016

7/1/2016

12/21/2016

Form S-3ASR

Form 10-K
S-1/A (333-141700)

4/24/2016

3/2/2020
4/27/2007

4.7

4.8
10.1

Exhibit 
No.

Filed with this
Form 10-K

2.1

2.2

2.1

2.1

3.1

3.4

3.1

3.1

4.1

4.2

4.1

4.1

4.1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Exhibit
No.

Filed Exhibit Description

Form

10.2 Form of Director and Officer Indemnification 

S-1 (333-141700)

Agreement

Date
3/30/2007

Exhibit 
No.
10.17

Filed with this
Form 10-K

Incorporated by Reference
to SEC Filing

*10.3 Amended and Restated 2007 Director Option Plan 

Form 8-K

6/18/2010

and form of option agreement

10.4 Lease Agreement dated August 16, 2011 between the 
Registrant and Cedar Brook 3 Corporate Center, L.P.

Form 8-K

8/16/2011

10.2

10.1

10.5 Securities Purchase Agreement, dated November 20, 
2013 by and among the Company and the purchasers 
identified therein

Form 8-K

11/20/2013

10.1

+10.6 Second Restated Agreement, dated November 19, 

Form 10-K

3/3/2014

10.46

2013 by and between the Registrant and Glaxo 
Group Limited

*10.7 Amicus Amicus Therapeutics, Inc. Amended and 

Form 8-K

12/28/2017

10.1

Restated Restricted Stock Unit Deferral Plan

*10.8 Employment Agreement dated April 23, 2014, 

Form 8-K

4/25/2014

10.1

between the Registrant and John F. Crowley

*10.9 Amended and Restated 2007 Equity Incentive Plan

DEF 14A

4/24/2020

A

*10.10 Amicus Therapeutics, Inc. Cash Deferral Plan

Form 8-K

10/28/2016

10.11 First Amendment to Lease, dated September 9, 2015, 

Form 8-K

9/14/2015

by and between Cedar Brook 3 Corporate 
Center, L.P. and the Registrant

10.1

10.1

10.12 Note and Warrant Purchase Agreement by and 

Form 8-K

2/22/2016

10.1

among the Registrant and the purchasers identified 
on the signature pages thereto, dated February 19, 
2016.

10.13 Joinder to and Amendment of Note and Warrant 

Form 8-K

7/1/2016

10.2

Purchase Agreement by and among Amicus 
Therapeutics, Inc., Amicus Therapeutics UK 
Limited, Amicus Therapeutics International 
Holding LTD and the purchasers identified on the 
signature pages thereto, dated as of June 30, 2016

10.14 Note Purchase Agreement, dated December 15, 

Form 8-K

12/21/2016

10.7

2016, by and among the Registrant, Amicus 
Therapeutics International Holding LTD and 
P Redmile Ltd.

10.15 Note Purchase Agreement, dated December 15, 

Form 8-K

12/21/2016

10.8

2016, by and among the Registrant, Amicus 
Therapeutics International Holding LTD and 
Redmile Capital Offshore Fund, Ltd.

10.16 Note Purchase Agreement, dated December 15, 

Form 8-K

12/21/2016

10.9

2016, by among the Registrant, Amicus Therapeutics 
International Holding LTD and Redmile Capital 
Offshore Fund II, Ltd.

10.17 Note Purchase Agreement, dated December 15, 

2016, by and among the Registrant, Amicus 
Therapeutics International Holding LTD and 
Redmile Special Opportunities Fund, Ltd.

-130-

Form 8-K

12/21/2016

10.10

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Exhibit
No.
10.18 Note Purchase Agreement, dated December 15, 

Filed Exhibit Description

Form

Form 8-K

Date
12/21/2016

Exhibit 
No.
10.11

Filed with this
Form 10-K

Incorporated by Reference
to SEC Filing

2016, by and among the Registrant, Amicus 
Therapeutics International Holding LTD and 
Redmile Capital Fund, LP

10.19 Note Purchase Agreement, dated December 15, 

Form 8-K

12/21/2016

10.12

2016, by and between Amicus Therapeutics 
International Holding LTD and GCM Grosvenor 
Special Opportunities Master Fund, Ltd.

10.20 Form of Performance-Based Restricted Stock Unit 

Form 8-K

12/30/2016

10.1

Award Agreement under the Amended and Restated 
2007 Equity Incentive Plan

10.21 Form of Exchange Agreements Relating to 

Form 8-K

1/24/2019

10.1

Company's 3.00% Convertible Senior Notes due 
2023

10.22 Form of Exchange Agreements Relating to 

Form 8-K

2/8/2019

10.1

Company's 3.00% Convertible Senior Notes due 
2023

10.23 Form of Exchange Agreements Relating to 

Form 8-K

3/13/2019

10.1

Company's 3.00% Convertible Senior Notes due 
2023

10.24 Form of Exchange Agreements Relating to 

Form 8-K

5/22/2019

10.1

Company's 3.00% Convertible Senior Notes due 
2023

10.25 Form of Exchange Agreements Relating to 

Form 8-K

6/19/2019

10.1

Company's 3.00% Convertible Senior Notes due 
2023

**10.26 Amended and Restated Research, Collaboration & 

Form 10-Q

8/8/2019

10.2

License Agreement, dated May 28, 2019, by and 
between Amicus Therapeutics, Inc. and the Trustees 
of the University of Pennsylvania

10.27 Amendment #1 to the Amicus Therapeutics, Inc. 

Form 8-K

10/26/2014

10.1

Cash Deferral Plan.

10.28 Amendment #2 to the Amicus Therapeutics, Inc. 

Form 8-K

12/19/2019

10.1

Cash Deferral Plan.

*10.29 Amendment No. 1 to Employment Agreement dated 

Form 10-K

3/2/2020

10.44

April 23, 2014 between the Registrant and John F. 
Crowley

*10.30 Employment Agreement dated February 18, 2020 

Form 10-K

3/2/2020

10.45

between the Registrant and Ellen S. Rosenberg 

*10.31 Employment Agreement dated February 18, 2020, 

Form 10-K

3/2/2020

10.46

between the Registrant and Bradley L. Campbell

*10.32 Employment Agreement dated February 18, 2020, 
between the Registrant and Jay Barth, M.D.

Form 10-K

3/2/2020

10.47

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Exhibit
No.
*10.33   Employment Agreement dated February 18, 2020, 
between the Registrant and Daphne Quimi

Filed Exhibit Description

Form

Form 10-K

Date
3/2/2020

Exhibit 
No.
10.48

Filed with this
Form 10-K

Incorporated by Reference
to SEC Filing

*10.34 Employment Agreement dated February 18, 2020 

Form 10-K

3/2/2020

10.49

between the Registrant and Hung Do

10.35 First Amendment to the Amended and Restated 

Form 10-Q

5/7/2020

10.1

Research, Collaboration & License Agreement dated 
December 20, 2019 by and between Amicus 
Therapeutics, Inc. and the Trustees of the University 
of Pennsylvania.

10.36 Second Amendment to the Amended and Restated 

Form 10-Q

5/7/2020

10.2

Research, Collaboration & License Agreement dated 
March 26, 2020 by and between Amicus 
Therapeutics, Inc. and the Trustees of the University 
of Pennsylvania.

10.37 Notice of Non-Renewal of Lease Agreement dated 
August 16, 2011 between the Registrant and Cedar 
Brook 3 Corporate Center, L.P.

10.38 Loan Agreement, dated as of July 17, 2020, by and 
among Amicus Therapeutics International Holding 
Ltd, as Borrower, Amicus Therapeutics, Inc. as 
Parent and a Guarantor, certain subsidiaries of Parent 
as additional Guarantors, and Hayfin Services LLP 
as Agent for certain lenders

*10.39 Form of Board Restricted Stock Unit Award 

Agreement under the Amended and Restated 2007 
Equity Incentive Plan

*10.40 Form of Restricted Stock Unit Award Agreement 

under the Amended and Restated 2007 Equity 
Incentive Plan

*10.41 Form of Board Stock Option Award Agreement 

under the Amended and Restated 2007 Equity 
Incentive Plan

*10.42 Form of Stock Option Award Agreement under the 
Amended and Restated 2007 Equity Incentive Plan

21 List of Subsidiaries

23.1 Consent of Independent Registered Public 

Accounting Firm.

31.1 Certification of Principal Executive Officer Pursuant 
to Rule 13a-14(a) of the Securities Exchange Act of 
1934.

31.2 Certification of Principal Financial Officer Pursuant 
to Rule 13a-14(a) of the Securities Exchange Act of 
1934.

32.1 Certificate of Principal Executive Officer pursuant to 
18 U.S.C. Section 1350 and Section 906 of the 
Sarbanes-Oxley Act of 2002.

-132-

Form 10-Q

8/10/2020

10.1

Form 10-Q

8/10/2020

10.2

X

X

X

X

X

X

X

X

X

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Exhibit
No.

Filed Exhibit Description

Form

Date

Exhibit 
No.

Filed with this
Form 10-K

Incorporated by Reference
to SEC Filing

32.2 Certificate of Principal Financial Officer pursuant to 
18 U.S.C. Section 1350 and Section 906 of the 
Sarbanes-Oxley Act of 2002.

101   The following financial information from this 

Annual Report on Form 10-K for the year ended 
December 31, 2020, formatted in Inline XBRL 
(Extensible Business Reporting Language) and filed 
electronically herewith: (i) the Consolidated Balance 
Sheets; (ii) the Consolidated Statements of 
Operations; (iii) the Consolidated Statements of 
Comprehensive Loss; (iv) the Consolidated 
Statements of Cash Flows; (v) and the Notes to the 
Consolidated Financial Statements.

104 The cover page from the Annual Report on Form 10-

K for the year ended December 31, 2020 formatted 
in Inline XBRL (included in Exhibit 101).

____________________________________________________________________

X

X

X

+ 

Confidential treatment has been granted as to certain portions of the document, which portions have been omitted and 
filed separately with the Securities and Exchange Commission.

++ 

Subject to confidential treatment request.

* 

** 

Indicates management contract or compensatory plan.

Certain confidential portions of this exhibit were omitted in accordance with Item 601(b)(10) of Regulation S-K.

The information required by this item is incorporated by reference from the Proxy Statement under the captions "Certain 
Relationships and Related Transactions," "Director Independence," "Committee Compensation and Meetings of the Board of 
Directors," and "Compensation Committee Interlock and Insider Participation."

-133-

 
 
 
 
 
 
   
 
 
 
 
 
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Item 16.    FORM 10-K SUMMARY.

Registrants may voluntarily include a summary of information required by Form 10-K under this Item 16. The Company 

has elected not to include such summary information.

-134-

Table of Contents

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 on March 1, 2021.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, this Report has been signed below by the following 

persons on behalf of the Registrant and in the capacities and on the dates indicated.

Signature

Title

Date

AMICUS THERAPEUTICS, INC.
(Registrant)
By:

/s/    John F. Crowley
John F. Crowley
Chief Executive Officer

/s/    John F. Crowley

(John F. Crowley)

/s/    Bradley L. Campbell

(Bradley L. Campbell)

/s/    Daphne Quimi

(Daphne Quimi)

/s/    Samantha Prout

(Samantha Prout)

/s/    Robert Essner

(Robert Essner)

/s/    Margaret G. McGlynn, R.Ph.
(Margaret G. McGlynn, R.Ph.)

/s/    Michael G. Raab

(Michael G. Raab)

/s/    Glenn Sblendorio

(Glenn Sblendorio)

Chairman and Chief Executive Officer
(Principal Executive Officer)

March 1, 2021

President and Chief Operating Officer
(President)

March 1, 2021

Chief Financial Officer
(Principal Financial Officer)

March 1, 2021

Global Controller
(Principal Accounting Officer)

March 1, 2021

March 1, 2021

March 1, 2021

March 1, 2021

March 1, 2021

Director

Director

Director

Director

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/s/    Craig Wheeler

(Craig Wheeler)

/s/    Lynn Bleil

(Lynn Bleil)

/s/    Burke Whitman

(Burke Whitman)

/s/    Michael A. Kelly

(Michael A. Kelly)

Signature

Title

Date

Director

Director

Director

Director

March 1, 2021

March 1, 2021

March 1, 2021

March 1, 2021

-136-

C O M P A N Y   I N F O R M A T I O N

H E A D Q U A R T E R S

E X E C U T I V E   O F F I C E R S

Amicus Therapeutics, Inc. 
3675 Market Street 
Philadelphia, PA 19104

T R A N S F E R   A G E N T

American Stock Transfer  
& Trust Company, LLC

6201 15th Avenue 
Brooklyn, NY 11219 
718 921 8200

I N D E P E N D E N T 
R E G I S T E R E D   P U B L I C 
A C C O U N T I N G   F I R M

Ernst & Young LLP

DAVID CLARK

Chief People Officer

HUNG DO PH.D.

Chief Science Officer

SAMANTHA PROUT

Global Controller and  
Principal Accounting Officer 

JOHN F. CROWLEY

Chairman and  
Chief Executive Officer

BRADLEY L. CAMPBELL

President and  
Chief Operating Officer

DAPHNE QUIMI

Chief Financial Officer

ELLEN S. ROSENBERG

Chief Legal Officer and  
Corporate Secretary

S T O C K H O L D E R   I N Q U I R I E S

B O A R D   O F   D I R E C T O R S

All shareholder inquiries related to the 
Company’s stock should be directed to: 

Amicus Therapeutics Inc.  
Investor Relations 
ir@amicusrx.com

C O M M O N   S T O C K

NASDAQ Symbol: FOLD

S E C   F O R M   1 0 - K

A copy of the Company’s annual report to 
the Securities and Exchange Commission 
on Form 10-K will be available without 
charge upon written request to Amicus 
Therapeutics, Inc., 3675 Market Street, 
Philadelphia, PA 19104 or via the 
Company’s website at www.amicusrx.com.

A N N U A L   M E E T I N G

Amicus will hold its Annual General Meeting 
of Shareholders virtually on June 10, 2021 
at 9:00 a.m. ET.

S A F E   H A R B O R

This annual report contains certain 
forward-looking statements. For a 
discussion of forward-looking statements, 
please see Part 1, Item 1 of our annual 
report on Form 10-K for 2020.

JOHN F. CROWLEY

Chairman and  
Chief Executive Officer

BRADLEY L. CAMPBELL

President and  
Chief Operating Officer

MICHAEL G. RAAB

MARGARET G. MCGLYNN

Lead Independent Director

Nominating and Governance 
(Chair)

Compensation and Leadership 
Development (Chair)

Nominating and Governance

Audit and Compliance

Science and Technology

LYNN D. BLEIL

Compensation and  
Leadership Development

Nominating and Governance

Science and Technology

ROBERT ESSNER

Audit and Compliance

MICHAEL A. KELLY

Audit and Compliance

Science and Technology

GLENN P. SBLENDORIO

Audit and Compliance (Chair)

CRAIG A. WHEELER

Science and Technology (Chair)

Compensation and  
Leadership Development

BURKE W. WHITMAN

Audit and Compliance

Nominating and Governance

A M I C U S   T H E R A P E U T I C S ,   I N C .

3675 Market Street

Philadelphia, PA 19104

+1 215-921-7600

www.amicusrx.com

Hiroki, Age 26

Nagoya, Japan

Natalie, Age 31

Los Angeles, CA

Hudson, Age 11 

Columbus, OH

Living with Pompe Disease

Living with Fabry Disease

Living with Batten Disease