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Aclaris Therapeutics, Inc.

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

FORM 10-K

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

For the fiscal year ended December 31, 2023

Commission file number 001-37581

ACLARIS THERAPEUTICS, INC.

Incorporated under the Laws of the
State of Delaware

I.R.S. Employer Identification No.
46-0571712

701 Lee Road, Suite 103
Wayne, PA 19087
(484) 324-7933

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

Title of Each Class:
Common Stock, $0.00001 par value

Trading Symbol(s)
ACRS

Name of Each Exchange on which Registered
The Nasdaq Stock Market, LLC

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 15(d) of the Exchange 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 emerging growth
company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ⌧

Accelerated filer ☐

Non-accelerated filer ☐

Smaller reporting company ☐

Emerging growth company ☐

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

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

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

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

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

correction of an error to previously issued financial statements. ☐

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

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

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

As of June 30, 2023, the last business day of the registrant’s last completed second quarter, the aggregate market value of the registrant’s common stock held by non-

affiliates of the registrant was approximately $712.6 million based on the closing price of the registrant’s common stock, as reported by the Nasdaq Global Select Market, on
such date.

As of January 31, 2024, 70,925,042 shares of common stock, $0.00001 par value, were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Company's definitive proxy statement, to be filed pursuant to Regulation 14A under the Securities Exchange Act of 1934, for its 2024 Annual Meeting of
Stockholders are incorporated by reference in Part III of this Form 10-K.

 
 
 
 
 
 
 
Table of Contents

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This  Annual  Report  on  Form  10-K,  or  this  Annual  Report,  contains  forward-looking  statements  within  the
meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities
Exchange  Act  of  1934,  as  amended,  or  the  Exchange  Act,  that  involve  substantial  risks  and  uncertainties.  The  forward-
looking  statements  are  contained  principally  in  Part  I,  Item  1.  “Business,”  Part  I,  Item  1A.  “Risk  Factors,”  and  Part  II,
Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” but are also contained
elsewhere in this Annual Report. In some cases, you can identify forward-looking statements by the words “may,” “might,”
“can,”  “will,”  “to  be,”  “could,”  “would,”  “should,”  “expect,”  “intend,”  “plan,”  “objective,”  “anticipate,”  “believe,”
“estimate,”  “predict,”  “project,”  “potential,”  “likely,”  “continue”  and  “ongoing,”  or  the  negative  of  these  terms,  or  other
comparable terminology intended to identify statements about the future. These statements involve known and unknown
risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to be
materially different from the information expressed or implied by these forward-looking statements. Although we believe
that we have a reasonable basis for each forward-looking statement contained in this Annual Report, we caution you that
these statements are based on a combination of facts and factors currently known by us and our expectations of the future,
about which we cannot be certain. Forward-looking statements include statements about:

● our plans to develop our drug candidates;
● the clinical utility of our drug candidates;
● our plans and expectations related to manufacturing capabilities and strategy;
● our expectations regarding coverage and reimbursement of our drug candidates, if approved;
● our intellectual property position;
● our plans to pursue strategic alternatives, including identifying and consummating transactions with third-party
partners, to further develop, obtain marketing approval for and/or commercialize our drug candidates, and earn
revenue from such arrangements;
● our expectations regarding competition;
● our expectations regarding our continued reliance on third parties;
● the impacts of macroeconomic conditions on our business;
● our expectations regarding our use of capital; and
● our estimates regarding future revenue, expenses and needs for additional financing.

You should refer to Part I, Item 1A. “Risk Factors” in this Annual Report for a discussion of important factors that
may cause our actual results to differ materially from those expressed or implied by our forward-looking statements. As a
result of these factors, we cannot assure you that the forward-looking statements in this Annual Report will prove to be
accurate,  and  you  should  not  place  undue  reliance  on  these  forward-looking  statements.  Furthermore,  if  our  forward-
looking statements prove to be inaccurate, the inaccuracy may be material. In light of the significant uncertainties in these
forward-looking  statements,  you  should  not  regard  these  statements  as  a  representation  or  warranty  by  us  or  any  other
person that we will achieve our objectives and plans in any specified time frame, or at all. The forward-looking statements
in this Annual Report represent our views as of the date of this Annual Report. We anticipate that subsequent events and
developments may cause our views to change. However, while we may elect to update these forward-looking statements at
some point in the future, we undertake no obligation to publicly update any forward-looking statements, whether as a result
of new information, future events or otherwise, except as required by law. You should, therefore, not rely on these forward-
looking statements as representing our views as of any date subsequent to the date of this Annual Report.

All  brand  names  or  trademarks  appearing  in  this  Annual  Report,  including  KINect  and  RHOFADE,  are  the
property  of  their  respective  owners.  Unless  the  context  requires  otherwise,  references  in  this  report  to  “Aclaris,”  the
“Company,” “we,” “us,” and “our” refer to Aclaris Therapeutics, Inc. and its subsidiaries.

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PART I
Item 1. Business
Item 1A. Risk Factors
Item 1B. Unresolved Staff Comments
Item 1C. Cybersecurity
Item 2. Properties
Item 3. Legal Proceedings
Item 4. Mine Safety Disclosures

TABLE OF CONTENTS

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

Securities

Item 6. [Reserved]
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations
Item 7A. Quantitative and Qualitative Disclosures About Market Risk
Item 8. Financial Statements and Supplementary Data
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Item 9A. Controls and Procedures
Item 9B. Other Information
Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

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 Accountant Fees and Services

PART IV
Item 15. Exhibits and Financial Statement Schedules
Item 16. Form 10-K Summary
Signatures

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Item 1. Business

Overview

PART I

We  are  a  clinical-stage  biopharmaceutical  company  focused  on  developing  novel  drug  candidates  for  immuno-
inflammatory  diseases.  Our  proprietary  KINect  drug  discovery  platform  combined  with  our  preclinical  development
capabilities  allows  us  to  identify  and  advance  potential  drug  candidates  that  we  may  develop  independently  or  in
collaboration  with  third  parties.  In  addition  to  identifying  and  developing  our  novel  drug  candidates,  we  are  pursuing
strategic  alternatives,  including  identifying  and  consummating  transactions  with  third-party  partners,  to  further  develop,
obtain marketing approval for and/or commercialize our novel drug candidates. We also provide contract research services
to third parties enabled by our early-stage research and development expertise. In January 2024, we announced that we are
undertaking a strategic review of our business.

Our Approach

We are dedicated to developing a pipeline of novel drug candidates to address the needs of patients with immuno-
inflammatory diseases who lack satisfactory treatment options. Our approach to achieve this goal includes the following
key elements:

● Create new medicines through kinome innovation. We are exploring the kinome, a subset of the human
genome  that  consists  of  a  collection  of  518  protein  kinases,  one  of  the  largest  of  all  human  gene  families,
responsible for signal transduction controlling cellular responses. Classified into eight major groups based on
their structural similarity to each other, kinases are key regulators of cell function in many cell processes. By
transferring  phosphates  to  other  molecules,  kinases  can  induce  a  cellular  response  to  environmental  cues.
Dysregulation and/or activating/blocking mutations in kinases can disrupt normal cell signaling and lead to
diseases ranging from autoimmune diseases to diabetes and cancer, making them important targets for drug
development.  There  are  over  70  kinase  inhibitors  approved  by  the  U.S.  Food  and  Drug  Administration,  or
FDA, on the market; however, these drugs only target a small fraction of the kinome, with many clinically
relevant kinase targets lacking validated inhibitors. In 2021, the kinase inhibitors market was valued at over
$57 billion. We’re focused on novel approaches toward the design and development of kinase inhibitors that
target  key  enzymes  involved  in  chronic  inflammation,  autoimmune  disease,  and  the  regulation  of  cancer
growth, survival and metastasis.

● Identify drug candidates through our KINect drug discovery platform. Our proprietary KINect platform
enables  us  to  identify  potential  drug  candidates  through  a  unique  combination  of  our  proprietary  chemical
library of kinase inhibitors, our novel approach to inhibitor modalities, our expertise in structure-based drug
design, or SBDD, and our custom kinase assays.

● Scientific  discovery  led  by  world-class  kinase  expertise.  We  have  assembled  an  accomplished  team  of
kinome  experts  skilled  at  developing  novel  kinase  targeted  medicines.  Our  talented  and  diverse  team  of
scientists  and  professionals  have  extensive  experience  in  cell  and  molecular  biology,  biochemistry,
enzymology, biomarker development, immunology, in vivo efficacy models, SBDD and medicinal chemistry.
● Broaden  our  drug  development  pipeline  internally  and  externally.  A  key  element  of  our  strategy  is  to
build and expand our pipeline of drug candidates. To build our pipeline, we may seek to in-license or acquire
additional drug candidates, in addition to developing assets in-house.

● Pursue strategic alternatives for our drug candidates. We intend to pursue strategic alternatives, including
identifying  and  consummating  transactions  with  third-party  partners,  to  further  develop,  obtain  marketing
approval for and/or commercialize our drug candidates.

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Our Drug Candidates

Our  pipeline  of  drug  candidates  is  summarized  in  the  table  below.  These  investigational  drugs  were  developed

internally utilizing our proprietary KINect drug discovery platform.

Drug Candidate
/ Program

Target

Route of
Administration

Indication

Development
Phase

Immuno-Inflammatory

ATI-1777

ATI-2138

“Soft” JAK 1/3
inhibitor

ITK/JAK3
inhibitor

Topical

Atopic dermatitis

Phase 2b Complete

Oral

T cell-mediated autoimmune
diseases

Phase 1 Complete

Oncology

Zunsemetinib

MK2 inhibitor

Oral

Metastatic breast cancer

Pancreatic cancer

Phase 1*

* We plan to support Washington University in St. Louis through investigator-initiated trials for these indications.

ATI-1777, an Investigational Topical “Soft” JAK 1/3 Inhibitor

ATI-1777  is  an  investigational  topical  “soft”  Janus  kinase,  or  JAK,  1/3  inhibitor  for  the  potential  treatment  of
atopic dermatitis and potentially other dermatologic conditions. “Soft” JAK inhibitors are designed to be topically applied
and active in the skin, but rapidly metabolized and inactivated when they enter the bloodstream, which may result in low
systemic exposure.

In  January  2024,  we  announced  positive  top-line  results  from  our  Phase  2b  study  of  ATI-1777  in  patients  with
mild to severe atopic dermatitis (ATI-1777-AD-202). ATI-1777-AD-202 was a Phase 2b, multicenter, randomized, double-
blind, vehicle-controlled, parallel-group clinical trial to evaluate the efficacy, safety, tolerability and pharmacokinetics, or
PK,  of  multiple  concentrations  (0.5%,  1%  and  2%)  of  twice  daily,  or  BID,  treatment  with  ATI-1777  and  a  single
concentration (2%) of once daily, or QD, treatment with ATI-1777. The trial randomized 250 patients with mild, moderate
or  severe  atopic  dermatitis,  including  adults  and  children  as  young  as  12  years  old,  across  30  clinical  trial  sites  in  the
United  States.  The  study  met  the  primary  efficacy  endpoint,  the  percent  change  from  baseline  in  the  Eczema  Area  and
Severity Index, or EASI, score at week 4, with statistical significance for patients treated with ATI-1777 2% BID compared
to  patients  treated  with  vehicle  (69.7%  versus  58.7%  in  the  pooled  vehicle  group,  p=0.035).  While  not  statistically
powered, ATI-1777 2% BID and 2% QD also showed improvement in the proportion of patients who reached an IGA-TS
response (or the Investigator Global Assessment Treatment Success, the U.S. FDA regulatory endpoint) at week 4 (ATI-
1777 2% BID: 37.2% compared to 27.1% in vehicle, p=0.141; ATI-1777 2% QD: 36.6% compared to 26.3% in vehicle,
p=0.137). In addition, a PK analysis showed minimal levels of exposure to ATI-1777. The mean steady state trough drug
levels at week 4 were 0.319 ng/mL, representing 0.7% of IC50 for JAK 1/3 inhibition in whole blood. In total, 97% of ATI-
1777 plasma samples from dosed patients had concentrations below 1/10th of the IC50, and six samples (from five ATI-
1777-treated patients) of 570 samples analyzed had concentrations above 1/4 of the IC50. No meaningful safety findings
were observed and ATI-1777 was well tolerated.

We intend to seek a development and commercialization partner for this program.

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ATI-2138, an Investigational Oral Covalent ITK/JAK3 Inhibitor

ATI-2138 is an investigational oral covalent inhibitor of interleukin-2-inducible T cell kinase, or ITK, and JAK3
for the potential treatment of T cell-mediated autoimmune diseases. The ITK/JAK3 compound interrupts T cell signaling
through the combined inhibition of ITK/JAK3 pathways in lymphocytes.

In September 2023, we announced positive results from our Phase 1 multiple ascending dose, or MAD, trial of
ATI-2138  (ATI-2138-PKPD-102).  ATI-2138-PKPD-201  was  a  two-week  Phase  1  placebo-controlled,  randomized,  MAD
trial  to  investigate  the  safety,  tolerability,  PK,  and  pharmacodynamics  of  ATI-2138  in  healthy  volunteers.  The  study
enrolled 60 healthy subjects across 6 dosing cohorts ranging from 10 to 80 mg of total daily doses, with eight active and
two placebo controlled per arm. Data from the trial demonstrated that ATI-2138 was generally well tolerated at all doses
tested in the trial and had dose proportional PK. Additionally, ATI-2138 demonstrated a dose-dependent inhibition of both
ITK and JAK3 exploratory pharmacodynamic biomarkers, with near maximal inhibition achieved at the 30 mg total daily
dose. No serious adverse events were reported.

We are assessing the most effective development pathway, including the lead indication, for ATI-2138.

Zunsemetinib, an Investigational Oral MK2 Inhibitor

Zunsemetinib,  or  ATI-450,  is  an  investigational  oral,  novel,  small  molecule  selective  inhibitor  of  the  mitogen-
activated protein kinase-activated protein kinase 2, or MK2, signaling pathway for the potential treatment of metastatic
breast cancer, or MBC, and pancreatic ductal adenocarcinoma, or PDAC.

MBC: Phosphorylated  MK2  is  upregulated  in  primary  tumors  and  metastatic  bone  lesions  from  MBC  patients.
  MK2  is  responsible  for  the  production  of  a  subset  of  critical  pro-tumorigenic  factors  secreted  by  the  stromal
microenvironment to support tumor growth and metastasis. Additionally, MK2 drives both metastatic and chemotherapy
induced bone loss in MBC patients through, at least in part, its role in RANKL biology and osteoclast production and
activation.  In  preclinical  studies,  zunsemetinib  has  been  demonstrated  to  impact  murine  models  of  MBC  through
inhibition of tumor growth and metastasis along with bone preservation.

PDAC: Phosphorylated  MK2  is  highly  expressed  in  PDAC  tissue  and  expression  levels  are  directly  associated
with  poor  outcomes  in  patients  with  PDAC.  The  current  first  and  second  line  standard  of  care  for  PDAC  patients  is
FOLFIRINOX  combination  chemotherapy.  Irinotecan  and  its  metabolite,  SN-38,  are  the  main  drivers  of  cancer  cell
apoptosis  associated  with  FOLFIRINOX.  The  effectiveness  of  FOLFIRINOX  is  limited  by  pro-survival  resistance
mechanisms  that  are  driven  through  SN-38  activation  of  the  MK2  pathway  and  phosphorylation  of  two  direct  MK2
substrates,  HSP-27  and  Beclin-1.  In  both  patient  derived  xenografts  and  in  the  autochthonous  genetic  KPPC  model  of
PDAC in mice, zunsemetinib has demonstrated that it blocks phosphorylation and activation of HSP-27, induces tumor
cell killing and enhances the efficacy of FIRINOX (a version of FOLFIRINOX used in murine models).

We  plan  to  support  Washington  University  in  St.  Louis  in  its  investigator-initiated  Phase  1b/2  trials  of

zunsemetinib in patients with MBC and PDAC.

Discovery Programs and KINect Drug Discovery Platform

We conduct small molecule drug discovery and preclinical development research through KINect, our proprietary
drug discovery platform, which we acquired as part of our acquisition of Confluence Life Sciences, Inc. (now known as
Aclaris Life Sciences, Inc.), or Confluence, in 2017. Our KINect platform enables us to identify potential drug candidates
through a unique combination of our proprietary chemical library of kinase inhibitors, our novel approaches to inhibitor
modalities, our expertise in SBDD, and our custom kinase assays.

Our  focus  has  been  on  difficult  to  drug  kinase  targets  that  exhibit  some  level  of  clinical,  genetic  and/or
pharmacological  disease  validation.  Our  approach  involves  the  following  mechanisms:  (1)  reversible  and  irreversible
covalent  inhibitors,  (2)  molecular  glue/complex  targeted  inhibitors  and  (3)  targeted  protein  degraders.  These  novel
approaches are currently being utilized to prosecute additional validated, difficult to drug kinase targets with the goal of
demonstrating potential platform utility.

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Reversible and Irreversible Covalent Inhibitors: Central to the KINect platform is our novel chemical library of
several hundred compounds specifically designed to target non-catalytic cysteine residues near the adenosine triphosphate,
or ATP, binding site of more than 300 kinases. Furthermore, using state-of-the-art drug modeling software, we are able to
elaborate the structure of viable drug-like compounds culled from our library and extensive in silico libraries to optimize
reversible binding to the target kinase and allow them to selectively form a covalent bond with the cysteine residue near the
ATP  site  on  the  specific  kinase  target.  This  approach  delivers  inhibitors  exhibiting  enhanced  potency,  selectivity  and
biochemical efficiency thereby allowing pharmacological access to ‘hard to drug’ kinases. We then assess the function of
the newly created compounds with physiologically relevant custom assays that effectively translate to human diseases.

Molecular Glue/Complex Targeted Inhibitors: In cells, protein kinases function in the context of multicomponent
signalosome  complexes.  Targeting  kinase  complexes  with  small  molecule  drugs  designed  to  either  stabilize  (molecular
glue) and/or generate inactive complexes provides several potential advantages over those designed against a single protein
target including: (1) utilizing a more physiological translatable complex as the target, (2) providing novel protein interfaces
devoid of competing endogenous ligands to target, and (3) identifying new chemical matter and modalities for difficult to
drug kinase targets.  As such, we have identified target complexes of interest and have initiated discovery programs against
these targets.

Targeted  Protein  Degraders:  We  believe  targeted  protein  degraders  represent  a  powerful  approach  to  develop
drugs  against  biologically  important  but  difficult  to  drug  proteins  including  kinases.  This  approach  harnesses  cellular
protein  clearing  machinery  to  selectively  remove  proteins  from  the  cell  in  contrast  to  inhibiting  their  function.  This
approach is particularly useful for kinases that have both catalytic and scaffolding functions for which inhibitors will only
partially  impact  biology.  We  are  exploring  selective  degraders  of  kinase  targets  with  multiple  biological  functions  in
addition to the catalytic activity.

This  integrated  drug  discovery  engine  allows  us  to  rapidly  progress  potential  drug  candidates  from  idea  to
Investigational  New  Drug,  or  IND.  We  believe  this  platform  can  generate  inhibitors  with  fit-for  purpose  mechanisms
ranging  from  reversible,  to  reversible-covalent  to  irreversible-covalent  kinase  and  kinase  complex  inhibitors  along  with
targeted protein degraders.

We are actively progressing several discovery programs focused on delivering the next wave of drug candidates
from our KINect platform. Our discovery efforts center on targeting kinases that play pivotal roles in various inflammatory,
autoimmune,  and  oncology  pathways.  We  intend  to  evaluate  both  internal  and  external  development  options,  including
strategic partnerships, for these assets.

Discontinued Programs

We were previously developing zunsemetinib as a potential treatment for various immuno-inflammatory diseases,
including  hidradenitis  suppurativa,  psoriatic  arthritis,  and  rheumatoid  arthritis.  In  March  2023,  we  announced  that  our
Phase  2a  study  of  zunsemetinib  in  patients  with  hidradenitis  suppurativa  did  not  meet  its  primary  or  second  efficacy
endpoints,  and  in  November  2023,  we  announced  that  our  Phase  2b  study  of  zunsemetinib  in  patients  with  rheumatoid
arthritis  did  not  meet  its  primary  or  second  efficacy  endpoints.  Following  the  results  of  these  trials,  in  2023  we
discontinued  further  development  of  our  MK2  inhibitor  programs  in  immuno-inflammatory  diseases,  including  halting
enrollment in our Phase 2a study of zunsemetinib in patients with psoriatic arthritis.

Manufacturing and Supply

We  do  not  have  any  manufacturing  facilities.  We  rely  on  third  parties  for  the  manufacture  of  preclinical  and

clinical supplies for our drug candidates.

Competition

The pharmaceutical industry is characterized by rapidly advancing technologies, intense competition and a strong
emphasis on proprietary drugs. While we believe that our knowledge, experience and scientific resources provide us with
competitive  advantages,  we  face  potential  competition  from  many  different  sources,  including  major  pharmaceutical,
biotechnology and specialty pharmaceutical companies, academic institutions and governmental agencies and public and
private research institutions. Our drug candidates, if approved, will compete with existing treatments and new treatments
that may become available in the future.

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With  respect  to  ATI-1777  as  a  potential  treatment  for  atopic  dermatitis,  there  are  several  different  types  of
therapies  in  the  atopic  dermatitis  market,  such  as  biologics,  oral  and  topical  corticosteroids,  oral  and  topical  calcineurin
inhibitors, oral mycophenolate products, other JAK inhibitors, other oral antibiotics and antihistamines and phototherapy.
There  are  also  several  prescription,  non-prescription  and  over-the-counter,  or  OTC,  topical  products,  including  PDE4
inhibitors, utilized to treat atopic dermatitis. These types of drugs are produced and sold, or are approved for marketing, by
large pharmaceutical companies, including AbbVie, Incyte, LEO Pharma A/S, Pfizer, and Regeneron Pharmaceuticals and
Sanofi. In addition, we are aware of a number of companies including large pharmaceutical companies, such as Amgen,
Dermavant Sciences, Eli Lilly, LEO Pharma A/S and Pfizer, developing and conducting clinical trials for investigational
drug candidates that could compete with ATI-1777, in each case if approved, for the treatment of atopic dermatitis.

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

Many of the companies against which we are competing, or against which we may compete in the future, have
significantly  greater  financial  resources  and  expertise  in  research  and  development,  manufacturing,  and  preclinical  and
clinical development than we do. Mergers and acquisitions in the pharmaceutical and biotechnology industries may result
in even more resources being concentrated among a smaller number of our competitors. Smaller or early-stage companies
may  also  prove  to  be  significant  competitors,  particularly  through  collaborative  arrangements  with  large  and  established
companies.  These  competitors  also  compete  with  us  in  recruiting  and  retaining  qualified  scientific  and  management
personnel and establishing clinical trial sites and subject registration for clinical trials, as well as in acquiring technologies
complementary to, or that may be necessary for, our development programs.

Intellectual Property

Our  success  depends  in  large  part  upon  our  ability  to  obtain  and  maintain  proprietary  protection  for  our  drug
candidates  and  to  operate  without  infringing  the  proprietary  rights  of  others.  We  seek  to  avoid  the  latter  by  monitoring
patents  and  publications  that  may  affect  our  business,  and  to  the  extent  we  identify  such  developments,  evaluating  and
taking  appropriate  courses  of  action.  Our  policy  is  to  protect  our  proprietary  position  by,  among  other  methods,  filing
patent applications on inventions that are important to the development and conduct of our business with the U.S. Patent
and Trademark Office, or USPTO, and its foreign counterparts.

With  respect  to  our  “soft”  JAK  inhibitor  development  program,  we  own  numerous  issued  patents  and  pending
applications  in  the  United  States  and  foreign  countries  to  novel  “soft”  JAK  inhibitors  and  various  methods  of  use  that
expire, or would expire, between 2038 and 2042, subject to any applicable patent term adjustment or extension that may be
available in a particular country. For example, we own issued patents in the United States and other foreign countries, as
well as pending applications in the United States and foreign countries directed to various novel inhibitors of JAK1 and/or
JAK3,  including  ATI-1777,  and  methods  of  using  the  same,  which,  if  issued,  would  expire  in  2038,  subject  to  any
applicable adjustment or extension. We also own pending applications in the United States and foreign countries directed to
crystal  forms  of  ATI-1777  and  directed  to  methods  of  using  ATI-1777  and  topical  formulations,  which,  if  issued,  would
expire in 2041 and 2042, respectively, subject to any applicable adjustment or extension.

With  respect  to  our  ITK  inhibitor  development  program,  we  own  numerous  issued  U.S.  patents  and  pending
applications in the United States and foreign countries directed to novel inhibitors of ITK and methods of use that expire,
or  would  expire,  between  2035  and  2039,  subject  to  any  applicable  patent  term  adjustment  or  extension  that  may  be
available  in  a  particular  country.  For  example,  we  own  one  U.S.  patent  and  pending  U.S.,  European  Union  and  other
foreign  country  applications  directed  to  ATI-2138  and  analogs  thereof  and  methods  of  using  the  same,  which,  if  issued,
would expire in 2039, subject to any applicable adjustment or extension. We also own a pending PCT application directed
to methods of using ATI-2138, which if issued, would expire in 2043, subject to any applicable adjustment or extension.

With respect to our MK2 signaling pathway inhibitor development program, we own numerous issued patents and
pending applications to novel MK2 pathway inhibitors, including zunsemetinib, and various methods of use that expire, or
would expire, between 2031 and 2041, subject to any applicable patent term adjustment or extension that may

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be  available  in  a  particular  country.  For  example,  we  own  two  issued  U.S.  patents  and  issued  patents  and  pending
applications in the European Union and other foreign countries directed to zunsemetinib and analogs thereof and certain
methods of using the same. The U.S. patents expire in 2034 and any claims that may issue from the pending applications
expire in 2034, subject to any applicable adjustment or extension. We own pending patent applications in the United States,
European  Union  and  other  foreign  countries  directed  to  methods  of  treating  various  cancers,  such  as  breast  cancer  and
pancreatic  cancer,  by  orally  administering  zunsemetinib,  which,  if  issued,  would  each  expire  in  2041,  subject  to  any
applicable  adjustment  or  extension.  Further,  we  own  one  U.S.  patent  and  numerous  pending  patent  applications  in  the
United States, European Union and other foreign countries directed to certain methods of manufacturing zunsemetinib and
crystal  forms  of  zunsemetinib,  which,  if  issued,  would  each  expire  in  2041,  subject  to  any  applicable  adjustment  or
extension.  We  also  exclusively  license  from  Washington  University  pending  applications  in  the  United  States  and  the
European Union directed to methods of treating pancreatic cancer with MK2 inhibitors, including zunsemetinib, which, if
issued, would expire in 2041, subject to any applicable adjustment or extension.

Patents extend for varying periods according to the date of patent filing or grant and the legal term of patents in
various  countries  where  patent  protection  is  obtained.  The  actual  protection  afforded  by  a  patent,  which  can  vary  from
country to country, depends on the type of patent, the scope of its coverage and the availability of legal remedies in the
country. In most countries in which we file, the patent term is 20 years from the earliest date of filing a non-provisional
patent application. In the United States, a patent term may be shortened if a patent is terminally disclaimed over another
patent or as a result of delays in patent prosecution by the patentee, and a patent’s term may be lengthened by patent term
adjustment, which compensates a patentee for administrative delays by the USPTO in granting a patent or by patent term
extension, which compensates a patentee for delays at the FDA. The patent term of a European patent is 20 years from its
filing date; however, unlike in the United States, the European patent does not grant patent term adjustments. The European
Union  does  have  a  compensation  program  similar  to  patent  term  extension  called  supplementary  patent  certificate  that
would effectively extend patent protection for up to five years.

We also use other forms of protection, such as trademark, copyright, and/or trade secret protection, to protect our
intellectual property, particularly where we do not believe patent protection is appropriate or obtainable. We aim to take
advantage of all of the intellectual property rights that are available to us and believe that this comprehensive approach will
provide us with proprietary positions for our drug candidates, where available.

We  also  protect  our  proprietary  information  by  requiring  our  employees,  consultants,  contractors  and  other
advisors  to  execute  nondisclosure  and  assignment  of  invention  agreements  upon  commencement  of  their  respective
employment  or  engagement.  Agreements  with  our  employees  also  prevent  them  from  bringing  the  proprietary  rights  of
third  parties  to  us.  In  addition,  we  also  require  confidentiality  or  service  agreements  from  third  parties  that  receive  our
confidential information or materials.

Acquisition and License Agreements

Agreement and Plan of Merger with Confluence

In  August  2017,  we  entered  into  an  Agreement  and  Plan  of  Merger,  or  the  Confluence  Agreement,  with
Confluence,  Aclaris  Life  Sciences,  Inc.,  our  wholly-owned  subsidiary,  or  Merger  Sub,  and  Fortis  Advisors  LLC,  as
representative of the former equity holders of Confluence. Pursuant to the terms of the Confluence Agreement, the Merger
Sub  merged  with  and  into  Confluence,  with  Confluence  surviving  as  our  wholly-owned  subsidiary,  resulting  in  our
acquisition  of  100%  of  the  outstanding  shares  of  Confluence.  As  part  of  the  Confluence  acquisition  we  acquired  our
investigational drug candidates zunsemetinib, ATI-1777 and ATI-2138. 

Under the Confluence Agreement, we agreed to pay the former Confluence equity holders aggregate remaining
contingent  consideration  of  up  to  $75.0  million  based  upon  the  achievement  of  specified  regulatory  and  commercial
milestones set forth in the Confluence Agreement. In addition, we have agreed to pay the former Confluence equity holders
future  royalty  payments  calculated  as  a  low  single-digit  percentage  of  annual  net  sales,  subject  to  specified  reductions,
limitations and other adjustments, until the date that all of the patent rights for that product have expired, as determined on
a country-by-country and product-by-product basis or, in specified circumstances, ten years from the first commercial sale
of such product.  In addition to the payments described above, if we sell, license or transfer any of the intellectual property
acquired from Confluence pursuant to the Confluence Agreement to a third party, we will be obligated to pay the former
Confluence  equity  holders  a  portion  of  any  consideration  received  from  such  sale,  license  or  transfer  in  specified
circumstances.

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Government Regulation and Product Approval

Governmental  authorities  in  the  United  States,  at  the  federal,  state  and  local  level,  and  analogous  authorities  in
other  countries  extensively  regulate,  among  other  things,  the  research,  development,  testing,  manufacture,  safety
surveillance,  efficacy,  quality  control,  labeling,  packaging,  distribution,  record  keeping,  promotion,  storage,  advertising,
distribution, marketing, sale, export and import, and the reporting of safety and other post-market information of products
such as the ones we are developing. A drug candidate must be approved by the FDA before it may be legally promoted in
the United States and by comparable foreign regulatory authorities before marketing in other jurisdictions. The process of
obtaining regulatory approvals and the subsequent compliance with applicable federal, state, local and foreign statutes and
regulations  require  the  expenditure  of  substantial  time  and  resources.  Failure  to  comply  with  the  applicable  U.S.
requirements  at  any  time  during  the  product  development  process,  approval  process  or  after  approval  may  subject  an
applicant and/or sponsor to a variety of administrative or judicial sanctions, including refusal by regulatory authorities to
approve applications, withdrawal of an approval, imposition of a clinical hold, import/export delays, issuance of warning
letters  and  untitled  letters,  product  recalls,  product  seizures,  total  or  partial  suspension  of  production  or  distribution,
injunctions, fines, refusals of government contracts, restitution, disgorgement of profits, or civil or criminal investigations
and penalties brought by FDA and the Department of Justice or other governmental entities.

United States Government Regulation

NDA Approval Processes

In the United States, the FDA regulates drugs under the Federal Food, Drug, and Cosmetic Act, or FDCA, and its
implementing  regulations.  The  FDA’s  Center  for  Drug  Evaluation  and  Research  has  primary  jurisdiction  over  the
premarket development, review and approval of our drug candidates. Accordingly, we are investigating our drug candidates
pursuant to IND applications and would expect to seek approval through the New Drug Application, or NDA, pathway.

An  applicant  seeking  approval  to  market  and  distribute  a  new  drug  product  in  the  United  States  must  typically

undertake the following:

● completion of preclinical laboratory tests, animal studies and formulation studies in compliance with the FDA’s

good laboratory practice regulations;

● submission to the FDA of an IND which must take effect before clinical trials may begin;
● approval  by  an  independent  institutional  review  board,  or  IRB,  representing  each  clinical  site  before  clinical

testing may be initiated at the clinical site;

● performance  of  adequate  and  well-controlled  clinical  trials  in  accordance  with  good  clinical  practice,  or  GCP,

regulations to establish the safety and efficacy of the proposed drug product for each indication;

● preparation and submission to the FDA of an NDA;
● review of the NDA by an FDA advisory committee, if applicable;
● satisfactory completion of one or more FDA inspections of the manufacturing facility or facilities at which the
product  or  its  components  are  produced  to  assess  compliance  with  current  good  manufacturing  practices,  or
cGMP, and regulations to assure that the facilities, methods and controls are adequate to preserve the product’s
identity, strength, quality and purity;

● payment of user fees and securing FDA approval of the NDA; and
● compliance  with  any  post-approval  requirements,  including  potential  requirements  for  a  risk  evaluation  and

mitigation strategy and post-approval studies required by the FDA.

Once  a  drug  candidate  is  identified  for  development,  it  enters  the  preclinical  or  nonclinical  testing  stage.
Preclinical studies include laboratory evaluations of product chemistry, pharmacology, toxicity and formulation. An IND
sponsor must submit the results of the preclinical studies, together with manufacturing information and analytical data, to
the  FDA  as  part  of  the  IND.  Some  preclinical  studies  may  continue  even  after  the  IND  is  submitted.  In  addition  to
including  the  results  of  the  preclinical  studies,  the  IND  will  also  include  a  protocol  detailing,  among  other  things,  the
objectives of the clinical trial, the parameters to be used in monitoring safety and the effectiveness criteria to be evaluated
if the first phase lends itself to an efficacy determination. The IND automatically becomes effective 30 days after receipt by
the FDA, unless the FDA, within the 30-day time period, places the IND on clinical hold. In such a case, the IND sponsor
and the

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FDA must resolve any outstanding concerns before clinical trials can begin. A clinical hold may occur at any time during
the life of an IND, and may affect one or more specific clinical trials or all clinical trials conducted under the IND.

All clinical trials must be conducted under the supervision of one or more qualified investigators in accordance
with  current  GCP  regulations.  They  must  be  conducted  under  protocols  detailing  the  objectives  of  the  trial,  dosing
procedures, research subject selection and exclusion criteria, and the safety and effectiveness criteria to be evaluated. Each
protocol must be submitted to the FDA as part of the IND, and progress reports detailing the status of the clinical trials
must be submitted to the FDA annually, as well as safety reporting. An IRB for each site participating in the clinical trial
must  review  and  approve  the  protocol  before  the  clinical  trial  commences  at  that  institution  and  must  also  approve  the
information regarding the trial and the consent form that must be provided to each research subject or the subject’s legal
representative, monitor the study until completed and otherwise comply with IRB regulations.

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

● Phase 1.  The  drug  is  initially  introduced  into  healthy  human  subjects  and  tested  for  safety,  dosage  tolerance,
absorption, metabolism, distribution and elimination. In the case of some products for severe or life-threatening
diseases, such as cancer, and especially when the product may be inherently too toxic to ethically administer to
healthy volunteers, the initial human testing is often conducted in patients who already have the condition.

● Phase 2. Clinical trials are performed on a limited patient population intended to identify possible adverse effects
and  safety  risks,  to  preliminarily  evaluate  the  efficacy  of  the  product  for  specific  targeted  diseases  and  to
determine dosage tolerance and optimal dosage.

● Phase 3. If a drug candidate is found to be potentially effective and to have an acceptable safety profile in Phase 2
clinical  trials,  the  clinical  trial  program  will  be  expanded  to  Phase  3  clinical  trials  to  further  evaluate  dosage,
clinical efficacy and safety in an expanded patient population at geographically dispersed clinical trial sites. These
trials  are  intended  to  establish  the  overall  risk-benefit  ratio  of  the  product  and  provide  an  adequate  basis  for
product approval and labeling claims.

Phase 4 clinical trials are conducted after approval to gain additional experience from the treatment of patients in
the  intended  therapeutic  indication  and  to  document  a  clinical  benefit  in  the  case  of  drugs  approved  under  accelerated
approval regulations, or when otherwise requested by the FDA in the form of post-market requirements or commitments.
Failure to promptly conduct any required Phase 4 clinical trials could result in withdrawal of approval.

Clinical  trials  are  inherently  uncertain,  and  Phase  1,  Phase  2  and  Phase  3  testing  may  not  be  successfully
completed. The FDA or the sponsor may suspend a clinical trial at any time for a variety of reasons, including a finding
that the research subjects or patients are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or
terminate approval of a clinical trial at its institution if the clinical trial is not being conducted in accordance with the IRB’s
requirements or if the drug has been associated with unexpected serious harm to patients. In some cases, clinical trials are
overseen  by  an  independent  group  of  qualified  experts  organized  by  the  trial  sponsor,  which  is  called  the  clinical
monitoring board or data safety monitoring board. This group provides authorization for whether or not a trial may move
forward at designated check points. These decisions are based on the limited access to data from the ongoing trial.

During the development of a new drug, sponsors are given opportunities to meet with the FDA at certain points.
These points may be prior to the submission of an IND, at the end of Phase 2 and before an NDA is submitted. Meetings at
other times may be requested. These meetings can provide an opportunity for the sponsor to share information about the
data  gathered  to  date  and  for  the  FDA  to  provide  advice  on  the  next  phase  of  development.  Sponsors  typically  use  the
meeting at the end of Phase 2 to discuss their Phase 2 clinical trial results and present their plans for the pivotal Phase 3
clinical trial or trials that they believe will support the approval of the new drug.

Concurrent  with  clinical  trials,  sponsors  usually  complete  additional  animal  safety  studies  and  also  develop
additional information about the chemistry and physical characteristics of the drug and finalize a process for manufacturing
commercial quantities of the product in accordance with cGMP requirements. The manufacturing process must be capable
of consistently producing quality batches of the drug and the manufacturer must develop methods for testing the quality,
purity and potency of the drug. Additionally, appropriate packaging must be selected and tested, and stability studies must
be conducted to demonstrate that the drug candidate does not undergo unacceptable deterioration over its proposed shelf-
life.

The  results  of  product  development,  preclinical  studies  and  clinical  trials,  along  with  descriptions  of  the

manufacturing process, analytical tests and other control mechanisms, proposed labeling and other relevant information

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are  submitted  to  the  FDA  as  part  of  an  NDA  requesting  approval  to  market  the  product.  The  submission  of  an  NDA  is
subject to the payment of user fees, but a waiver of such fees may be obtained under specified circumstances. The FDA
reviews all NDAs submitted for a period of 60 days to ensure that they are sufficiently complete for substantive review
before it accepts them for filing. It may request additional information rather than accept an NDA for filing. In this event,
the NDA must be resubmitted with the additional information. The resubmitted application also is subject to review before
the FDA accepts it for filing.

During the 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. If the FDA concludes a REMS is needed, the sponsor of the NDA
must submit a proposed REMS, and the FDA will not approve the application without an approved REMS, if required. A
REMS can substantially increase the costs of obtaining approval. The FDA could also require a special warning, known as
a boxed warning, to be included in the product label in order to highlight a particular safety risk.

Once  the  submission  is  accepted  for  filing,  the  FDA  begins  an  in-depth  review.  The  FDA  reviews  an  NDA  to
determine, among other things, whether a product is safe and effective for its intended use and whether its manufacturing is
cGMP-compliant. The FDA may refer the NDA to an advisory committee for review and recommendation as to whether
the  application  should  be  approved  and  under  what  conditions.  The  FDA  is  not  bound  by  the  recommendation  of  an
advisory committee, but it generally follows such recommendations. NDAs receive either standard or priority review. A
drug representing a significant improvement in treatment, prevention or diagnosis of disease may receive priority review. A
priority review designation is intended to direct overall attention and resources to the evaluation of such applications, and
to shorten the FDA’s goal for taking action on the NDA from ten months to six months from filing of the NDA. After the
FDA  evaluates  the  NDA  and  conducts  inspections  of  manufacturing  facilities  where  the  drug  product  and/or  its  active
pharmaceutical ingredient will be produced, it may issue an approval letter or a Complete Response Letter. An approval
letter  authorizes  commercial  marketing  of  the  drug  with  specific  prescribing  information  for  specific  indications.  A
Complete Response Letter indicates that the review cycle of the application is complete, and the application is not ready for
approval.  A  Complete  Response  Letter  may  require  additional  clinical  data  and/or  an  additional  pivotal  Phase  3  clinical
trial(s), and/or other significant, expensive and time-consuming requirements related to clinical trials, preclinical studies or
manufacturing. Even if such data and information are submitted, the FDA may ultimately decide that the NDA does not
satisfy the criteria for approval.

Post-approval Requirements

Drugs manufactured or distributed pursuant to FDA approvals are subject to pervasive and continuing regulation
by  the  FDA  and  other  governmental  agencies,  including,  among  other  things,  requirements  relating  to  recordkeeping,
periodic  reporting,  product  sampling  and  distribution,  advertising  and  promotion,  and  reporting  of  adverse  experiences
with  the  product.  Once  an  approval  is  granted,  the  FDA  may  withdraw  the  approval  if  compliance  with  regulatory
requirements  is  not  maintained  or  if  problems  occur  after  the  product  reaches  the  market.  Later  discovery  of  previously
unknown problems with a product may result in restrictions on the product or even complete withdrawal of the product
from  the  market.  After  approval,  some  types  of  changes  to  the  approved  product,  such  as  adding  new  indications,
manufacturing  changes  and  additional  labeling  claims,  are  subject  to  further  FDA  review  and  approval.  There  are  also
continuing annual user fee requirements for products, as well as new application fees for certain supplemental applications.
In addition, the FDA may require testing and surveillance programs to monitor the effect of approved products that have
been commercialized, and the FDA has the power to prevent or limit further marketing of a product based on the results of
these post-marketing programs.

Drug manufacturers and other entities involved in the manufacture and distribution of approved drugs are required
to  register  their  establishments  with  the  FDA  and  certain  state  agencies  and  are  subject  to  periodic  unannounced
inspections  by  the  FDA  and  some  state  agencies  for  compliance  with  GMP  regulations  and  other  laws.  The  FDA  has
promulgated specific requirements for drug cGMPs. Changes to the manufacturing process are strictly regulated and often
require prior FDA approval before being implemented. FDA regulations also require investigation and correction of any
deviations  from  cGMP  requirements  and  impose  reporting  and  documentation  requirements  upon  the  sponsor  and  any
third-party manufacturers that the sponsor may decide to use. Accordingly, manufacturers must continue to expend time,
money, and effort in the area of production and quality control to maintain cGMP compliance.

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Failure to comply with the applicable U.S. requirements at any time during the product development process or
approval  process,  or  after  approval,  may  subject  us  to  administrative  or  judicial  sanctions,  any  of  which  could  have  a
material adverse effect on us. These sanctions could include:

● refusal to approve pending applications;
● withdrawal of an approval;
● imposition of a clinical hold;
● warning letters;
● product seizures or detention, or refusal to permit the import or export of products;
● restrictions on the marketing or manufacturing of the product;
● total or partial suspension of production or distribution or product recalls; or
● injunctions, fines, disgorgement, or civil or criminal penalties.

The FDA strictly regulates the marketing, labeling, advertising and promotion of drug products that are placed on
the  market.  Drugs  may  be  promoted  only  for  the  approved  indications  and  in  accordance  with  the  provisions  of  the
approved label. However, companies may share truthful and not misleading information that is otherwise consistent with
the product’s FDA approved labeling. The FDA and other agencies actively enforce the laws and regulations prohibiting
the promotion of off-label uses, and a company that is found to have improperly promoted off-label uses may be subject to
significant liability. However, physicians may, in their independent medical judgment, prescribe legally available products
for off-label uses. The FDA does not regulate the behavior of physicians in their choice of treatments, but the FDA does
restrict sponsor communications on the subject of off-label use.

From time to time, legislation is drafted, introduced and passed in Congress that could significantly change the
statutory provisions governing the approval, manufacturing and marketing of products regulated by the FDA. In addition,
FDA regulations and guidance are often issued revised or reinterpreted by the agency in ways that may significantly affect
our business and our drug candidates. It is impossible to predict whether legislative changes will be enacted, or whether
FDA regulations, guidance or interpretations will be issued or changed or what the impact of such changes, if any, may be.

Non-patent Exclusivity

The FDCA provides a five-year period of non-patent marketing exclusivity within the United States to the first
applicant  to  obtain  approval  of  an  NDA  for  a  new  chemical  entity,  or  NCE.  A  drug  is  an  NCE  if  the  FDA  has  not
previously approved any other new drug containing the same active moiety, which is the molecule or ion responsible for
the action of the drug substance. If market exclusivity is granted for an NCE, during the exclusivity period, the FDA may
not  accept  for  review  or  approve  an  abbreviated  new  drug  application,  or  ANDA,  or  a  505(b)(2)  NDA  submitted  by
another company for another version of such drug where the applicant does not own or have a legal right of reference to all
the data required for approval. However, an application may be submitted after four years if it contains a certification of
patent invalidity or non-infringement to one of the patents listed with the FDA by the innovator NDA holder.

The FDCA also provides three years of marketing exclusivity for an NDA, or supplement to an existing NDA if
new  clinical  investigations,  other  than  bioavailability  studies,  that  were  conducted  or  sponsored  by  the  applicant  are
deemed by the FDA to be essential to the approval of the application, for example new indications, dosages, dosage forms
or strengths of an existing drug.  This three-year exclusivity covers only the conditions associated with the new clinical
investigations and prohibits the FDA from approving an ANDA or a 505(b)(2) NDA submitted by another company with
overlapping  conditions  associated  with  the  new  clinical  investigations  for  the  three-year  period.  Clinical  investigation
exclusivity does not prohibit the FDA from approving ANDAs for drugs containing the original active agent. Five-year and
three-year  exclusivity  will  not  delay  the  submission  or  approval  of  an  NDA  for  the  same  drug.  However,  an  applicant
submitting an NDA would be required to conduct or obtain a right of reference to all of the preclinical studies and adequate
and well-controlled clinical trials necessary to demonstrate safety and effectiveness.

Regulation Outside of the United States

Even  if  we  obtain  FDA  approval  for  a  drug  candidate,  we  must  obtain  approval  by  the  comparable  regulatory
authorities  of  countries  outside  of  the  United  States  before  we  can  commence  clinical  trials  in  such  countries,  and  our
potential third-party partners must obtain approval of the regulators of such countries or economic areas, such as the

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European Union, before they may market any of our drug candidates in those countries or areas. The approval process and
requirements  governing  the  conduct  of  clinical  trials,  product  licensing  and  promotion,  pricing  and  reimbursement  vary
greatly by geographic region, and the time may be longer or shorter than that required for FDA approval.

In the European Economic Area, or EEA, which is composed of the Member States of the European Union plus
Norway,  Iceland  and  Liechtenstein,  medicinal  products  can  only  be  commercialized  after  obtaining  a  Marketing
Authorization, or MA.

There are two types of MAs:

● The Community MA, which is issued by the European Commission through the Centralized Procedure, based on
the  opinion  of  the  Committee  for  Medicinal  Products  for  Human  Use,  or  CHMP,  of  the  European  Medicines
Agency,  or  EMA,  and  which  is  valid  throughout  the  entire  territory  of  the  EEA.  The  Centralized  Procedure  is
mandatory for certain types of products, such as biotechnology medicinal products, orphan medicinal products,
and medicinal products indicated for the treatment of AIDS, cancer, neurodegenerative disorders, diabetes, auto-
immune and viral diseases. The Centralized Procedure is optional for products containing a new active substance
not  yet  authorized  in  the  EEA,  or  for  products  that  constitute  a  significant  therapeutic,  scientific  or  technical
innovation or which are in the interest of public health in the European Union. Under the Centralized Procedure,
the maximum timeframe for the evaluation of a marketing authorization application is 210 days (excluding clock
stops,  when  additional  written  or  oral  information  is  to  be  provided  by  the  applicant  in  response  to  questions
asked  by  the  CHMP).  Accelerated  evaluation  might  be  granted  by  the  CHMP  in  exceptional  cases,  when  the
authorization of a medicinal product is of major interest from the point of view of public health and, in particular,
from  the  viewpoint  of  therapeutic  innovation.  Under  the  accelerated  procedure,  the  standard  210  days  review
period is reduced to 150 days.

● National MAs, which are issued by the competent authorities of the Member States of the EEA and only cover
their  respective  territory,  are  available  for  products  not  falling  within  the  mandatory  scope  of  the  Centralized
Procedure.  Where  a  product  has  already  been  authorized  for  marketing  in  a  Member  State  of  the  EEA,  this
National  MA  can  be  recognized  in  another  Member  State  through  the  Mutual  Recognition  Procedure.  If  the
product  has  not  received  a  National  MA  in  any  Member  State  at  the  time  of  application,  it  can  be  approved
simultaneously in various Member States through the Decentralized Procedure.

In the EEA, upon receiving marketing authorization, NCEs generally receive eight years of data exclusivity and
an additional two years of market exclusivity. If granted, data exclusivity prevents regulatory authorities in the EEA from
referencing  the  innovator’s  data  to  assess  a  generic  application.  During  the  additional  two-year  period  of  market
exclusivity, a generic marketing authorization can be submitted, and the innovator’s data may be referenced, but no generic
product can be marketed until the expiration of the market exclusivity. However, there is no guarantee that a product will
be considered by the EEA’s regulatory authorities to be an NCE, and products may not qualify for data exclusivity.

Other Health Care Laws

Health care providers, physicians and third-party payors in the United States and elsewhere will play a primary
role in the recommendation and prescription of any of our drug candidates for which marketing approval is obtained. Our
potential third-party partners’ arrangements with third-party payors, health care professionals and customers may expose
them to broadly applicable fraud and abuse and other health care laws and regulations, including, without limitation, the
federal  Anti-Kickback  Statute  and  the  federal  civil  False  Claims  Act,  that  may  constrain  the  business  or  financial
arrangements  and  relationships  through  which  they  sell,  market  and  distribute  any  drug  candidates  for  which  marketing
approval is obtained. In addition, we and our potential third-party partners may be subject to transparency laws and patient
privacy regulation by the federal government and by the U.S. states and foreign jurisdictions in which we or they conduct
business.

The  federal  Anti-Kickback  Statute  makes  it  illegal  for  any  person  or  entity,  including  a  prescription  drug
manufacturer (or a party acting on its behalf) to knowingly and willfully, directly or indirectly, solicit, receive, offer, or pay
any remuneration that is intended to induce the referral of business, including the purchase, order, or lease of any good,
facility,  item  or  service  for  which  payment  may  be  made  under  a  federal  health  care  program,  such  as  Medicare  or
Medicaid. The term “remuneration” has been broadly interpreted to include anything of value. The Anti-Kickback Statute
has  been  interpreted  to  apply  to  arrangements  between  pharmaceutical  manufacturers  on  one  hand  and  prescribers,
purchasers, formulary managers, and beneficiaries on the other. Although there are a number of statutory exceptions and

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regulatory  safe  harbors  protecting  some  common  activities  from  prosecution,  the  exceptions  and  safe  harbors  are  drawn
narrowly.  Practices  that  involve  remuneration  that  may  be  alleged  to  be  intended  to  induce  prescribing,  purchases  or
recommendations may be subject to scrutiny if they do not qualify for an exception or safe harbor. Failure to meet all of the
requirements  of  a  particular  applicable  statutory  exception  or  regulatory  safe  harbor  does  not  make  the  conduct  per  se
illegal under the Anti-Kickback Statute. Instead, the legality of the arrangement will be evaluated on a case-by-case basis
based  on  a  cumulative  review  of  all  its  facts  and  circumstances.  Several  courts  have  interpreted  the  statute’s  intent
requirement  to  mean  that  if  any  one  purpose  of  an  arrangement  involving  remuneration  is  to  induce  referrals  of  federal
health care covered business, the Anti-Kickback Statute has been violated. Violations of this law are punishable by up to
ten years in prison, and can also result in criminal fines, civil monetary penalties, administrative penalties and exclusion
from participation in federal health care programs.

Additionally,  the  intent  standard  under  the  Anti-Kickback  Statute  was  amended  by  the  Patient  Protection  and
Affordable Care Act of 2010, as amended by the Health Care and Education Reconciliation Act of 2010, or collectively the
Affordable Care Act, to a stricter standard such that a person or entity no longer needs to have actual knowledge of the
statute or specific intent to violate it in order to have committed a violation. In addition, the Affordable Care Act codified
case law that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes
a false or fraudulent claim for purposes of the federal civil False Claims Act.

Federal false claims and false statement laws, including the federal civil False Claims Act, prohibits, among other
things, any person or entity from knowingly presenting, or causing to be presented, for payment to, or approval by, federal
programs, including Medicare and Medicaid, claims for items or services, including drugs, that are false or fraudulent or
not provided as claimed. Entities can be held liable under these laws if they are deemed to “cause” the submission of false
or fraudulent claims by, for example, providing inaccurate billing or coding information to customers, promoting a product
off-label, or for providing medically unnecessary services or items. In addition, activities relating to the sale and marketing
of products are subject to scrutiny under this law. Penalties for federal civil False Claims Act violations may include up to
three times the actual damages sustained by the government, plus mandatory civil penalties for each separate false claim,
the potential for exclusion from participation in federal health care programs, and, although the federal civil False Claims
Act is a civil statute, False Claims Act violations may also implicate various federal criminal statutes.  

The  federal  Health  Insurance  Portability  and  Accountability  Act  of  1996,  or  HIPAA,  prohibits  among  other
actions, knowingly and willfully executing, or attempting to execute, a scheme to defraud any health care benefit program,
including private third-party payors, knowingly and willfully embezzling or stealing from a health care benefit program,
willfully obstructing a criminal investigation of a health care offense, and knowingly and willfully falsifying, concealing or
covering up a material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery
of or payment for health care benefits, items or services. Like the Anti-Kickback Statute, the Affordable Care Act amended
the intent standard for the health care fraud statute under HIPAA such that a person or entity no longer needs to have actual
knowledge of the statute or specific intent to violate it in order to have committed a violation.

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

Also, many states have similar fraud and abuse statutes or regulations that may be broader in scope and may apply
regardless of payor, in addition to items and services reimbursed under Medicaid and other state programs. Additionally, to
the extent that a product is sold in a foreign country, the seller may be subject to similar foreign laws.

In  addition,  legislation  imposing  marketing  restrictions  and  transparency  requirements  on  pharmaceutical
manufacturers has been enacted at the state and federal levels. For example, the Affordable Care Act imposed, among other
things,  annual  reporting  requirements  to  the  Centers  for  Medicare  &  Medicaid  Services,  or  CMS,  for  covered
manufacturers for certain payments and other transfers of value provided to physicians (defined to include doctors, dentists,
optometrists,  podiatrists  and  chiropractors),  other  health  care  professionals  (such  as  physician  assistants  and  nurse
practitioners)  and  teaching  hospitals,  as  well  as  information  regarding  ownership  and  investment  interests  held  by
physicians  and  their  immediate  family  members.  Failure  to  submit  timely,  accurately  and  completely  the  required
information  for  all  payments,  transfers  of  value  and  ownership  or  investment  interests  may  result  in  civil  monetary
penalties for “knowing failures.”  Certain states also mandate implementation of compliance programs, impose restrictions
on drug manufacturer marketing practices, require registration of certain employees engaged in marketing activities in the

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location,  and/or  require  the  tracking  and  reporting  of  gifts,  compensation  and  other  remuneration  to  health  care
professionals, including physicians.

We have developed a comprehensive compliance program that establishes internal controls to facilitate adherence
to  the  rules  and  program  requirements  to  which  we  are  subject.  Although  the  development  and  implementation  of
compliance programs designed to establish internal controls and facilitate compliance can mitigate the risk of investigation,
prosecution, and penalties assessed for violations of these laws, or any other laws that may apply to us, the risks cannot be
entirely eliminated. If our operations are found to be in violation of any such laws or any other governmental regulations,
we  may  be  subject  to  significant  penalties,  including,  without  limitation,  administrative,  civil,  and  criminal  penalties,
damages,  fines,  disgorgement,  imprisonment,  contractual  damages,  reputational  harm,  diminished  profits  and  future
earnings,  the  curtailment  or  restructuring  of  our  operations,  exclusion  from  participation  in  federal  and  state  health  care
programs,  additional  reporting  requirements  and  oversight  if  we  become  subject  to  a  corporate  integrity  agreement  or
similar  agreement  to  resolve  allegations  of  non-compliance  with  these  laws  and  individual  imprisonment,  any  of  which
could adversely affect our ability to operate our business and our financial results.

We may also be subject to data privacy and security regulation by both the federal government and the states in
which  we  conduct  our  business.  HIPAA,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical
Health  Act,  or  HITECH,  and  their  implementing  regulations,  including  the  final  omnibus  rule  published  on  January  25,
2013,  mandates,  among  other  things,  the  adoption  of  uniform  standards  for  the  electronic  exchange  of  information  in
common health care transactions, as well as standards relating to the privacy and security of individually identifiable health
information, which require the adoption of administrative, physical and technical safeguards to protect such information.
Among  other  things,  HITECH  makes  HIPAA’s  security  standards  directly  applicable  to  “business  associates”,  namely
independent contractors or agents of HIPAA covered entities that create, receive or obtain protected health information in
connection with providing a service for or on behalf of a covered entity and their subcontractors that use, disclose, access,
or  otherwise  process  protected  health  information.  HITECH  also  increased  the  civil  and  criminal  penalties  that  may  be
imposed against covered entities and business associates and gave state attorneys general new authority to file civil actions
for  damages  or  injunctions  in  federal  courts  to  enforce  the  federal  HIPAA  laws  and  seek  attorneys’  fees  and  costs
associated  with  pursuing  federal  civil  actions.  In  addition,  certain  state  laws  govern  the  privacy  and  security  of  health
information in certain circumstances, some of which are more stringent than HIPAA and many of which differ from each
other in significant ways and may not have the same effect, thus complicating compliance efforts. Failure to comply with
these laws, where applicable, can result in the imposition of significant civil and/or criminal penalties.

Health Care Reform

In the United States, there have been and continue to be a number of significant legislative initiatives to contain
health  care  costs.  For  example,  in  March  2010,  the  Affordable  Care  Act  was  passed,  which  has  had,  and  is  expected  to
continue  to  have,  a  significant  impact  on  the  health  care  industry.  The  Affordable  Care  Act  was  designed  to  expand
coverage for the uninsured and at the same time contain overall health care costs. With regard to pharmaceutical products,
among other things, the Affordable Care Act expanded and increased industry rebates for drugs covered under Medicaid
programs;  addressed  a  new  methodology  by  which  rebates  owed  by  manufacturers  under  the  Medicaid  Drug  Rebate
Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected; extended the rebate program to
individuals enrolled in Medicaid managed care organizations; established annual fees and taxes on manufacturers of certain
branded prescription drugs; made changes to the coverage requirements under the Medicare prescription drug benefit; and
established  a  new  Medicare  Part  D  coverage  gap  discount  program,  in  which  manufacturers,  as  a  condition  for  their
outpatient drugs to be covered under Medicare Part D, must agree to offer 70% point-of-sale discounts off negotiated prices
of applicable brand drugs to eligible beneficiaries during their coverage gap period.  Moreover, the Affordable Care Act
provided  incentives  to  programs  that  increase  the  federal  government’s  comparative  effectiveness  research  and
implemented  payment  system  reforms  including  a  national  pilot  program  on  payment  bundling  meant  to  encourage
hospitals, physicians and other providers to improve the coordination, quality and efficiency of certain health care services.

There have been executive branch, judicial and Congressional challenges to certain aspects of the Affordable Care
Act. While Congress has not passed comprehensive repeal legislation, several bills affecting the implementation of certain
taxes under the Affordable Care Act have been signed into law. On June 17, 2021, the U.S. Supreme Court dismissed a
challenge  on  procedural  grounds  that  argued  the  Affordable  Care  Act  is  unconstitutional  in  its  entirety  because  the
“individual mandate” was repealed by Congress. Prior to the U.S. Supreme Court ruling, on January 28, 2021, President
Biden  issued  an  executive  order  that  initiated  a  special  enrollment  period  for  purposes  of  obtaining  health  insurance
coverage through the Affordable Care Act marketplace. The executive order also instructed certain governmental agencies

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to  review  and  reconsider  their  existing  policies  and  rules  that  limit  access  to  healthcare,  including  among  others,
reexamining  Medicaid  demonstration  projects  and  waiver  programs  that  include  work  requirements,  and  policies  that
create unnecessary barriers to obtaining access to health insurance coverage through Medicaid or the Affordable Care Act.
Further, on August 16, 2022, President Biden signed the Inflation Reduction Act of 2022, or IRA, into law, which among
other  things,  extends  enhanced  subsidies  for  individuals  purchasing  health  insurance  coverage  in  Affordable  Care  Act
marketplaces  through  plan  year  2025.  The  IRA  also  eliminates  the  “donut  hole”  under  the  Medicare  Part  D  program
beginning in 2025 by significantly lowering the beneficiary maximum out-of-pocket cost and through a newly established
manufacturer  discount  program.  It  is  possible  that  the  Affordable  Care  Act  will  be  subject  to  judicial  or  Congressional
challenges  in  the  future.  It  is  unclear  how  such  challenges  and  any  additional  health  care  reform  measures  of  the  Biden
administration will impact the Affordable Care Act and our business.

In addition, other legislative changes have been proposed and adopted since the Affordable Care Act was enacted.
For  example,  in  August  2011,  President  Obama  signed  into  law  the  Budget  Control  Act  of  2011,  which,  among  other
things,  created  the  Joint  Select  Committee  on  Deficit  Reduction  to  recommend  to  Congress  proposals  in  spending
reductions. The Joint Select Committee on Deficit Reduction did not achieve a targeted deficit reduction of at least $1.2
trillion for fiscal years 2012 through 2021, triggering the legislation’s automatic reduction to several government programs.
This  includes  aggregate  reductions  in  Medicare  payments  to  providers  of  2%  per  fiscal  year,  which  went  into  effect
beginning on April 1, 2013 and, due to subsequent legislative amendments to the statute, including the Bipartisan Budget
Act of 2018, or the BBA, and the Infrastructure Investment and Jobs Act, will stay in effect through 2032 unless additional
Congressional action is taken. Additionally, in January 2013, the American Taxpayer Relief Act of 2012 was signed into
law,  which,  among  other  things,  reduced  Medicare  payments  to  several  providers,  including  hospitals,  cancer  treatment
centers and imaging centers. Moreover, the Drug Supply Chain Security Act imposes new obligations on manufacturers of
pharmaceutical products related to product tracking and tracing. Legislative and regulatory proposals have been made to
expand post-approval requirements and restrict sales and promotional activities for pharmaceutical products.

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 Congressional inquiries and proposed and enacted federal
and state legislation designed to, among other things, bring more transparency to product pricing, review the relationship
between  pricing  and  manufacturer  patient  programs,  and  reform  government  program  reimbursement  methodologies  for
products.  In  July  2021,  the  Biden  administration  released  an  executive  order,  “Promoting  Competition  in  the  American
Economy,” with multiple provisions aimed at prescription drugs. In response to Biden’s executive order, on September 9,
2021, the Department of Health and Human Services, or HHS, released a Comprehensive Plan for Addressing High Drug
Prices that outlines principles for drug pricing reform and sets out a variety of potential legislative policies that Congress
could pursue as well as potential administrative actions HHS can take to advance these principles. In addition, the IRA,
among  other  things,  (1)  directs  HHS  to  negotiate  the  price  of  certain  single-source  drugs  and  biologics  covered  under
Medicare  and  (2)  imposes  rebates  under  Medicare  Part  B  and  Medicare  Part  D  to  penalize  price  increases  that  outpace
inflation.  These  provisions  take  effect  progressively  starting  in  fiscal  year  2023,  although  they  may  be  subject  to  legal
challenges. It is unclear how the IRA will be implemented in the future, but it is likely to have a significant impact on the
pharmaceutical  industry.  Further,  the  Biden  administration  released  an  additional  executive  order  on  October  14,  2022,
directing HHS to submit a report on how the Center for Medicare and Medicaid Innovation can be further leveraged to test
new models for lowering drug costs for Medicare and Medicaid beneficiaries. It is unclear whether this executive order or
similar policy initiatives will be implemented in the future. On December 7, 2023, the Biden administration announced an
initiative  to  control  the  price  of  prescription  drugs  through  the  use  of  march-in  rights  under  the  Bayh-Dole  Act.  On
December  8,  2023,  the  National  Institute  of  Standards  and  Technology  published  for  comment  a  Draft  Interagency
Guidance  Framework  for  Considering  the  Exercise  of  March-In  Rights  which  for  the  first  time  includes  the  price  of  a
product  as  one  factor  an  agency  can  use  when  deciding  to  exercise  march-in  rights.  While  march-in  rights  have  not
previously been exercised, it is uncertain if that will continue under the new framework. The effect of reducing prices and
reimbursement  for  certain  of  our  drug  candidates,  if  approved,  could  significantly  impact  our  business  and  consolidated
results of operations. In addition, the IRA may meaningfully influence our pharmaceutical industry business strategies. In
particular, it may reduce the attractiveness of investment in small molecule and biologic innovation.

At  the  state  level,  legislatures  have  become  increasingly  active  in  passing  legislation  and  implementing
regulations  designed  to  control  pharmaceutical  and  biological  product  pricing,  including  price  or  patient  reimbursement
constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and,
in some cases, designed to encourage importation from other countries and bulk purchasing. For example, on January 5,
2024, the FDA approved Florida’s proposal to import certain drugs from Canada for specific state healthcare programs. It
is unclear if and how this program will be implemented and whether it will be subject challenges in the United States or

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Canada. Other states have also submitted proposals that are pending review by the FDA. Any such approved importation
plans, if implemented, may result in lower drug prices for products covered by those programs.

The Affordable Care Act, the IRA, as well as other federal and state health care reform measures that have been
and may be adopted in the future, could harm our future revenue. Additional legislative actions may be taken in the future
which may change current regulations, guidance and interpretations. The impact of such actions on our business, if any,
cannot presently be determined.

The Hatch Waxman Amendments to the FDCA

Orange Book Listing

In seeking approval for a drug through an NDA, applicants are required to list with the FDA each patent whose
claims cover the applicant’s product or a method of using the product. 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 ANDA or an application covered by Section 505(b)(2) of the FDCA. An ANDA
provides for marketing of a drug product that has the same active ingredients, generally in the same strengths and dosage
form, as the listed drug and has been shown through pharmacokinetic, or PK, testing to be bioequivalent to the listed drug.
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  drug.  Other  than  the  requirement  for
bioequivalence testing, ANDA applicants are generally not required to conduct, or submit results of, preclinical studies or
clinical tests to prove the safety or effectiveness of their drug product. Section 505(b)(2) applications provide for marketing
of a drug product that may have the same active ingredients as the listed drug and contains full safety and effectiveness
data  as  an  NDA,  but  at  least  some  of  this  information  comes  from  studies  not  conducted  by  or  for  the  applicant.  This
alternate  regulatory  pathway  enables  the  applicant  to  rely,  in  part,  on  the  FDA’s  findings  of  safety  and  efficacy  for  an
existing product, or published literature, in support of its application. The FDA may then approve the new drug candidate
for  all  or  some  of  the  labeled  indications  for  which  the  referenced  product  has  been  approved,  as  well  as  for  any  new
indication sought by the 505(b)(2) applicant.

The ANDA or Section 505(b)(2) 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.  The  ANDA  or  Section  505(b)(2)  applicant  may  also  elect  to  submit  a  statement  certifying  that  its
proposed ANDA label does not contain, or carves out, any language regarding a patented method of use rather than certify
to such listed method of use patent. If the applicant does not challenge the listed patents by filing a certification that the
listed patent is invalid or will not be infringed by the new product, the ANDA or Section 505(b)(2) application will not be
approved until all the listed patents claiming the referenced product have expired.

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  IV  certification.  If  the  ANDA  or  Section  505(b)(2)  applicant  has  provided  a
Paragraph IV certification to the FDA, the applicant must also send notice of the Paragraph IV certification to the NDA
and patent holders once the ANDA or Section 505(b)(2) application 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  IV
certification.  The  filing  of  a  patent  infringement  lawsuit  within  45  days  of  the  receipt  of  a  Paragraph  IV  certification
automatically prevents the FDA from approving the ANDA or Section 505(b)(2) application until the earliest of 30 months,
expiration of the patent, settlement of the lawsuit, and a decision in the infringement case that is favorable to the ANDA or
Section 505(b)(2) applicant. This prohibition is generally referred to as the 30-month stay. Thus, approval of an ANDA or
505(b)(2) NDA could be delayed for a significant period of time depending on the patent certification the applicant makes
and the reference drug sponsor’s decision to initiate patent litigation.

The ANDA or Section 505(b)(2) application also will not be approved until any applicable non-patent exclusivity

listed in the Orange Book for the referenced product has expired.

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Patent Term Extension

In the United States, after NDA approval, owners of relevant drug patents may apply for up to a five-year patent
extension,  which  provides  patent  term  restoration  as  compensation  for  the  patent  term  lost  during  the  FDA  regulatory
review  process  for  the  first  permitted  commercial  marketing  of  a  drug  product.  The  Drug  Price  Competition  and  Patent
Term Restoration Act of 1984, or the Hatch-Waxman Act, permits a patent term extension of up to five years beyond the
expiration of the patent. The allowable patent term extension is calculated as half of the drug’s testing phase, which is the
time between the IND submission becoming effective and the NDA submission, and all of the review phase, which is the
time between NDA submission and approval, up to a maximum extension of five years. The time can be shortened if the
FDA  determines  that  the  applicant  did  not  pursue  approval  with  due  diligence.  Patent  extension  cannot  extend  the
remaining term of a patent beyond a total of 14 years from the date of product approval and only one patent applicable to
an approved drug may be extended.

Similar  provisions  are  available  in  the  European  Union  and  other  foreign  jurisdictions  to  extend  the  term  of  a
patent that covers an approved drug. For example, in Japan, it may be possible to extend the patent term for up to five years
and in the European Union, it may be possible to obtain a supplementary patent certificate that would effectively extend
patent protection for up to five years.

Coverage and Reimbursement

We believe the success of our drug candidates, if approved, will depend on obtaining and maintaining coverage
and adequate reimbursement as a prescription treatment or in the absence of coverage and adequate reimbursement, on the
extent to which patients will be willing to pay out of pocket for our prescription drug products.

Third-party  payors  determine  which  prescription  drug  products  they  will  cover  and  establish  reimbursement
levels.  Reimbursement  by  a  third-party  payor  may  depend  upon  a  number  of  factors,  including:  the  third-party  payor’s
determination that a product is safe, effective, and medically necessary; appropriate for the specific patient; cost-effective;
supported  by  peer-reviewed  medical  journals  or  current  clinical  practice  guidelines;  and  whether  there  are  competitive
products, either branded or generic, and the pricing of those products.  Many private third-party payors, such as managed
care plans, manage access to drug products’ coverage partly to control costs for their plans, and may use drug formularies
and medical policies to limit their exposure. Obtaining and maintaining favorable reimbursement can be a time-consuming
and  expensive  process,  and  our  potential  third-party  partners  may  not  be  able  to  negotiate  or  continue  to  negotiate
reimbursement or pricing terms for our drug candidates, if approved, with third-party payors at levels that are profitable to
us,  or  at  all.  Further  coverage  policies  and  third-party  reimbursement  rates  may  change  at  any  time.  Even  if  favorable
coverage and reimbursement status is attained for one or more products which receive regulatory approval, less favorable
coverage policies and reimbursement rates may be implemented in the future.

In  addition  to  uncertainties  surrounding  coverage  policies,  there  are  periodic  changes  to  reimbursement.  Third-
party  payors  regularly  update  reimbursement  amounts  and  also  from  time  to  time  revise  the  methodologies  used  to
determine  reimbursement  amounts.    Accordingly,  these  updates  could  impact  the  demand  for  our  drug  candidates,  if
approved. Our drug candidates, if approved, may not be considered cost effective, and government and third-party private
health  insurance  coverage  and  reimbursement  may  not  be  available  to  patients  or  sufficient  to  allow  our  potential  third-
party  partners  to  sell  our  drug  candidates,  if  approved,  on  a  competitive  and  profitable  basis.  Our  results  of  operations
could be adversely affected by the Affordable Care Act, the IRA and by other health care reforms that may be enacted or
adopted in the future. In addition, increasing emphasis on managed care in the United States will continue to put pressure
on  the  pricing  of  pharmaceutical  products.  Cost  control  initiatives  could  decrease  the  price  that  our  potential  third-party
partners could receive for any of our drug candidates, if approved, and could adversely affect our profitability. We cannot
predict  how  pending  and  future  health  care  legislation  will  impact  our  business,  and  any  changes  in  coverage  and
reimbursement that further restricts coverage of our drug candidates could harm our business.

Foreign governments also have their own health care reimbursement systems, which vary significantly by country
and region, and we cannot be sure that coverage and adequate reimbursement will be made available with respect to our
drug candidates, if approved, under any foreign reimbursement system. In some foreign countries, including major markets
in the European Union and Japan, the pricing of prescription pharmaceuticals is subject to governmental control. In these
countries,  pricing  negotiations  with  governmental  authorities  can  take  up  to  12  months  or  longer  after  the  receipt  of
regulatory marketing approval for a product.  To obtain reimbursement or pricing approval in some countries, we may be
required  to  conduct  a  pharmacoeconomic  study  that  compares  the  cost-effectiveness  of  our  drug  candidate  to  other
available therapies. Such pharmacoeconomic studies can be costly and the results uncertain. Our business could be harmed

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if reimbursement of our drug candidates, if approved, is unavailable or limited in scope or amount or if pricing is set at
unsatisfactory levels.

Employees and Human Capital Resources

As  of  December  31,  2023,  we  had  91  total  employees,  of  which  86  were  full-time  employees.  On
December  19,  2023,  we  announced  a  plan  to  reduce  our  workforce,  which  we  anticipate  to  be  substantially  complete
by June 2024. All of our employees are located in the United States. None of our employees are represented by a labor
union or covered by a collective bargaining agreement. We consider our relationship with our employees to be good.

Our human capital resources objectives include, as applicable, identifying, recruiting, retaining, incentivizing and
integrating our existing and new employees, advisors and consultants. The principal purposes of our equity incentive plans
are to attract, retain and reward personnel through the granting of stock-based compensation awards in order to increase
stockholder value and the success of our company by motivating such individuals to perform to the best of their abilities
and achieve our objectives.

Corporate Information

We were incorporated under the laws of the State of Delaware in July 2012. Our principal executive offices are
located at 701 Lee Road, Suite 103, Wayne, PA 19087. Our telephone number is (484) 324-7933. Our common stock is
listed on the Nasdaq Global Select Market under the symbol “ACRS.”

Available Information

Our internet website address is www.aclaristx.com. In addition to the information contained in this Annual Report,
information about us can be found on our website. Our website and information included in or linked to our website are not
part of this Annual Report.

Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments
to  those  reports  filed  or  furnished  pursuant  to  Section  13(a)  or  15(d)  of  the  Exchange  Act  are  available  free  of  charge
through our website as soon as reasonably practicable after they are electronically filed with or furnished to the Securities
and Exchange Commission, or SEC.  The SEC also maintains a website that contains our reports, proxy and information
statements and other information. The address of the SEC’s website is www.sec.gov.

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Item 1A. Risk Factors

Our  business  is  subject  to  numerous  risks.  You  should  carefully  consider  the  following  risks  and  all  other
information  contained  in  this  Annual  Report,  as  well  as  general  economic  and  business  risks,  together  with  any  other
documents we file with the SEC. If any of the following events actually occur or risks actually materialize, it could have a
material  adverse  effect  on  our  business,  operating  results  and  financial  condition  and  cause  the  trading  price  of  our
common stock to decline.

Summary of Risk Factors

● We have incurred significant losses since our inception. We expect to incur losses over the next several years

and may never achieve or maintain profitability.

● We  will  need  substantial  additional  funding  to  meet  our  financial  obligations  and  to  pursue  our  business
objectives.  If  we  are  unable  to  raise  capital  when  needed,  we  could  be  forced  to  curtail  our  planned
operations.

● We have a limited history as a clinical-stage biopharmaceutical company developing and partnering our drug
candidates,  which  may  make  it  difficult  to  evaluate  the  success  of  our  business  to  date  and  to  assess  our
future viability.

● If we are unable to successfully develop our drug candidates and to pursue strategic alternatives, including
identifying  and  consummating  transactions  with  third-party  partners,  to  further  develop,  obtain  marketing
approval  for  and/or  commercialize  our  drug  candidates,  or  experience  significant  delays  in  doing  so,  our
business will be harmed.

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

personnel.

● We intend to pursue strategic alternatives, including identifying and consummating transactions with third-
party partners, to further develop, obtain marketing approval for and/or commercialize our drug candidates.
If those arrangements are not successful, we may not be able to capitalize on the market potential of these
drug candidates.

● If we are unable to obtain and maintain patent protection for our drug candidates, or if the scope of the patent
protection obtained is not sufficiently broad, our competitors could develop and commercialize technology
and drugs similar or identical to ours, and our ability to successfully pursue strategic alternatives, including
identifying  and  consummating  transactions  with  potential  third-party  partners,  to  commercialize  our
technology and drug candidates may be impaired.

● We  face  substantial  competition,  which  may  result  in  others  discovering,  developing  or  commercializing

drugs before or more successfully than we do.

Risks Related to Our Business, Our Financial Position and Capital Needs

We have incurred significant losses since our inception. We expect to incur losses over the next several years

and may never achieve or maintain profitability.

Since inception, we have incurred significant net losses. We incurred net losses of $88.5 million and $86.9 million
for the years ended December 31, 2023 and 2022, respectively. As of December 31, 2023, we had an accumulated deficit of
$770.8 million. We have financed our operations over the last several years primarily from sales of equity securities and
incurring indebtedness in the form of loans from commercial lenders.

We have devoted substantially all of our financial resources and efforts to the development of our drug candidates,
including preclinical studies and clinical trials. Our net losses may fluctuate significantly from quarter to quarter and year
to year. We expect to continue to incur significant expenses and operating losses in the near term as we:

● pursue strategic alternatives, including identifying and seeking to consummate transactions with third-party

partners, to further develop, obtain marketing approval for and/or commercialize our drug candidates;

● continue to develop our drug candidates;
● continue to discover and develop additional drug candidates;
● maintain, expand and protect our intellectual property portfolio; and
● incur  legal,  accounting,  investor  relations  and  other  administrative  expenses  in  operating  as  a  public

company.

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To  become  and  remain  profitable,  we  must  succeed  in  a  range  of  challenging  activities,  including  completing
preclinical testing and clinical trials of our drug candidates and pursuing strategic alternatives, including identifying and
consummating  transactions  with  third-party  partners,  for  the  further  development  and/or  commercialization  of  our  drug
candidates, as well as discovering and developing additional drug candidates. We are in the early stages of most of these
activities. We may never succeed in these activities and, even if we do, may never earn revenue from our drug candidates
that is significant enough to achieve profitability.

For  any  of  our  drug  candidates,  our  revenue  will  be  dependent,  in  part,  upon  our  ability  to  identify  and
consummate transactions with third-party partners to further develop, obtain marketing approval for and/or commercialize
those  drug  candidates.  Further,  we  will  be  dependent  on  our  potential  third-party  partners’  ability  to  obtain  marketing
approval  and  successfully  commercialize  the  product,  upon  the  size  of  the  markets  in  the  territories  where  marketing
approval is obtained, the accepted price for the product, and the ability to obtain coverage and reimbursement, if any. If we
fail  to  identify  and  enter  into  partnerships  with  third  parties  to  further  develop,  obtain  marketing  approval  for  and/or
commercialize our drug candidates, any partnerships we enter into do not result in the successful development, marketing
approval  for  and  commercialization  of  our  drug  candidates,  the  number  of  addressable  patients  is  not  as  significant  as
estimated by our potential third-party partners, the indication approved by regulatory authorities is narrower than expected,
or  the  treatment  population  is  narrowed  by  competition,  physician  choice  or  treatment  guidelines,  we  may  not  earn
significant  revenue  from  agreements  with  potential  third-party  partners  for  such  drug  candidates,  even  if  the  drug
candidates are approved for marketing. 

Because of the numerous risks and uncertainties associated with drug development, we are unable to accurately
predict  the  timing  or  amount  of  expenses  or  when,  or  if,  we  will  be  able  to  achieve  profitability.  If  we  are  required  by
regulatory  authorities  to  perform  studies  in  addition  to  those  expected,  or  if  there  are  any  delays  in  the  initiation  and
completion of our clinical trials, the development of any of our drug candidates or the identification and consummation of
transactions  with  third-party  partners  to  further  develop,  obtain  marketing  approval  for  and/or  commercialize  our  drug
candidates, our expenses could increase.

Even if we achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual
basis. Our failure to become and remain profitable would depress the value of our company and could impair our ability to
raise capital, expand our business, maintain our development efforts, diversify our offerings or continue our operations. A
decline in the value of our company could also cause you to lose all or part of your investment.

We  will  need  substantial  additional  funding  to  meet  our  financial  obligations  and  to  pursue  our  business

objectives. If we are unable to raise capital when needed, we could be forced to curtail our planned operations. 

Identifying  potential  drug  candidates  and  conducting  preclinical  testing  and  clinical  trials  is  a  time-consuming,
expensive  and  uncertain  process  that  takes  years  to  complete,  and  we  may  never  generate  the  necessary  data  or  results
required to identify and consummate transactions with third-party partners to further develop, obtain marketing approval
for  and/or  commercialize  our  drug  candidates.  We  expect  to  incur  significant  expenses  and  operating  losses  for  the
foreseeable  future  as  we  advance  our  drug  candidates  from  discovery  through  preclinical  and  clinical  development.  In
addition, we may not be able to identify and consummate transactions with third-party partners to further develop, obtain
marketing approval for and/or commercialize our drug candidates, and our drug candidates, if approved, may not achieve
commercial success. Furthermore, we incur and expect to continue to incur significant costs associated with operating as a
public company, including legal, accounting, investor relations and other expenses.

As of December 31, 2023, we had cash, cash equivalents and marketable securities of $181.9 million. We believe
that our existing cash, cash equivalents and marketable securities as of the date of this Annual Report will enable us to fund
our  operating  expenses  and  capital  expenditure  requirements  for  a  period  greater  than  12  months  from  the  date  of  this
report  based  on  our  current  operating  assumptions.  These  assumptions  may  prove  to  be  wrong,  and  we  could  use  our
available capital resources sooner than we expect. Changes may occur beyond our control that would cause us to consume
our  available  capital  before  that  time,  including  changes  in  and  progress  of  our  development  activities,  acquisitions  of
additional  products  or  drug  candidates,  and  changes  in  regulation.  Our  future  capital  requirements  will  depend  on  many
factors, including:

● the number and development requirements of the drug candidates that we may pursue;

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● the  scope,  progress,  results  and  costs  of  preclinical  development,  laboratory  testing  and  conducting

preclinical and clinical trials for our drug candidates;

● the costs, timing and outcome of regulatory review of our drug candidates;
● the extent to which we in-license or acquire drug candidates and technologies;
● the costs and timing of preparing, filing and prosecuting patent applications, maintaining and enforcing our

intellectual property rights and defending any intellectual property-related claims;

● our  ability  to  identify  and  consummate  transactions  with  third-party  partners  to  further  develop,  obtain

marketing approval for and/or commercialize our drug candidates; and

● our ability to earn revenue from licenses to, or partnerships or other arrangements with, third parties.

We will require additional capital to develop our drug candidates and to support our discovery efforts. Additional
funds may not be available on a timely basis, on commercially acceptable terms, or at all, and such funds, if raised, may
not  be  sufficient  to  enable  us  to  continue  to  implement  our  long-term  business  strategy.  Our  ability  to  raise  additional
capital  may  be  adversely  impacted  by  potential  worsening  global  economic  conditions  caused  by  a  variety  of  factors
including geopolitical tensions, rising interest rates and inflationary pressures. If we are unable to raise sufficient additional
capital  or  generate  revenue  from  transactions  with  potential  third-party  partners  for  the  development  and/or
commercialization of our drug candidates, we could be forced to curtail our planned operations.

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

relinquish rights to our technologies, intellectual property, potential future revenue streams or drug candidates.

Until  such  time,  if  ever,  as  we  can  earn  substantial  revenue,  we  expect  to  finance  our  cash  needs  through  a
combination  of  equity  offerings,  debt  financings  and  license  and  partnership  agreements.  To  the  extent  that  we  raise
additional capital through the sale of equity securities or convertible debt securities, our stockholders’ ownership interest
will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights
of holders of our common stock. Debt financing and preferred equity financing, if available, may involve agreements that
include  covenants  limiting  or  restricting  our  ability  to  take  specific  actions,  such  as  incurring  additional  debt,  making
capital expenditures or declaring dividends.

If  we  raise  additional  funds  through  partnerships,  strategic  alliances  or  marketing,  distribution  or  licensing
arrangements  with  potential  third-party  partners,  we  may  be  required  to  relinquish  valuable  rights  to  our  technologies,
intellectual  property,  potential  future  revenue  streams,  or  drug  candidates  or  grant  licenses  on  terms  that  may  not  be
favorable  to  us.  If  we  are  unable  to  raise  additional  funds  through  equity  or  debt  financings  or  other  arrangements  with
third parties when needed, we may be required to delay, limit, reduce or terminate our drug development efforts or grant
rights to third parties to develop technologies, intellectual property, or drug candidates that we would otherwise prefer to
develop ourselves.

We have a limited history as a clinical-stage biopharmaceutical company developing and partnering our drug
candidates, which may make it difficult to evaluate the success of our business to date and to assess our future viability.

Our  operations  over  the  last  several  years  have  been  largely  focused  on  undertaking  preclinical  studies  and
conducting  clinical  trials,  drug  discovery,  acquiring  new  drug  candidates  and  related  intellectual  property,  and  raising
capital.  We  have  had  limited  time  to  demonstrate  our  ability  to  successfully  develop,  manufacture  and  identify  and
consummate transactions with third-party partners to further develop, obtain marketing approval for and/or commercialize
our drug candidates. Consequently, any predictions you make about our future success or viability may not be as accurate
as they could be if we had a longer history of being a clinical-stage biopharmaceutical company focused on developing and
partnering  drugs.  We  may  also  encounter  unforeseen  expenses,  difficulties,  complications,  delays  and  other  known  or
unknown factors in achieving our business objectives.

Risks Related to the Development and Potential Commercialization of Our Drug Candidates

We may not be successful in our efforts to identify and develop additional drug candidates leveraging our KINect

drug discovery platform.  

A key element of our approach is to leverage our KINect drug discovery engine to identify and develop additional

novel drug candidates. Our platform is powered by a unique combination of our proprietary chemical library of kinase

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inhibitors, our novel approaches to inhibitor modalities, our expertise in SBDD, and our custom kinase assays. Our ability
to identify and develop additional drug candidates is subject to numerous risks, including that:

● our  drug  discovery  methods  and  our  KINect  platform  may  not  be  successful  in  identifying  additional  drug

candidates;

● our discovery programs may initially show promise in identifying potential drug candidates, yet fail to yield drug

candidates for clinical development; and

● potential drug candidates may, on further study, be shown to have harmful side effects or other characteristics that
indicate  that  they  are  unlikely  to  be  drug  candidates  that  will  receive  marketing  approval  and  achieve  market
acceptance.

In addition, discovery programs require substantial technical, financial and human resources. We may not be able
to maintain sufficient resources and expertise to discover additional drug candidates. It could take years to identify a viable
drug  candidate,  and  there  is  a  risk  that  we  may  never  do  so.  If  we  are  unable  to  identify  successful  drug  candidates  for
preclinical and clinical development and regulatory approval in a timely matter or at all, we could experience significant
delays  or  an  inability  to  successfully  pursue  strategic  alternatives,  including  identifying  and  consummating  transactions
with  third-party  partners,  to  further  develop,  obtain  marketing  approval  for  and/or  commercialize  our  drug  candidates,
which could harm our business.

If  we  are  unable  to  successfully  develop  our  drug  candidates  and  to  pursue  strategic  alternatives,  including
identifying and consummating transactions with third-party partners, to further develop, obtain marketing approval for
and/or commercialize our drug candidates, or experience significant delays in doing so, our business will be harmed.

We  have  invested  significant  efforts  and  financial  resources  in  the  development  of  our  drug  candidates  and  the
identification  of  potential  drug  candidates.  Our  ability  to  earn  substantial  revenue  from  our  drug  candidates  will  depend
heavily  on  our  ability  to  successfully  develop  and  pursue  strategic  alternatives,  including  identifying  and  consummating
transactions with third-party partners, to further develop, obtain marketing approval for and/or commercialize these drug
candidates. The success of any drug candidates that we develop will depend on several factors, including:

● successful completion of preclinical studies and our clinical trials;
● successful development of manufacturing processes;
● receipt of timely approvals from applicable regulatory authorities;
● the  identification  and  consummation  of  transactions  with  third-party  partners  to  further  develop,  obtain

marketing approval for and/or commercialize our drug candidates;

● the commercial launch of our drug candidates, if approved, by a potential third-party partner;
● our  potential  third-party  partners’  ability  to  achieve  acceptance  of  our  drug  candidates,  if  approved,  by
patients, the medical community and third-party payors, and willingness of patients to pay out of pocket for
our drug candidates when third-party payor coverage and reimbursement is limited or unavailable;

● our  potential  third-party  partners’  ability  to  achieve  success  in  educating  physicians  and  patients  about  the

benefits, administration and use of our drug candidates, if approved;

● the prevalence and severity of adverse events experienced with our drug candidates;
● the  availability,  perceived  advantages,  cost,  safety  and  efficacy  of  alternative  treatments  for  the  proposed

indications of our drug candidates;

● obtaining  and  maintaining  patent,  trademark  and  trade  secret  protection  and  regulatory  exclusivity  for  our

drug candidates and otherwise protecting the intellectual property portfolio;

● maintaining  compliance  with  regulatory  requirements,  including  current  good  manufacturing  practices,  or

cGMPs;

● our potential third-party partners’ ability to compete effectively with other treatment procedures; and
● our potential third-party partners’ ability to maintain a continued acceptable safety, tolerability and efficacy

profile of our drug candidates following marketing approval.

Whether marketing approval will be granted is unpredictable and depends upon numerous factors, including the
substantial  discretion  of  the  regulatory  authorities.  Our  drug  candidates’  success  in  clinical  trials  will  not  guarantee
marketing approval. Following submission, the NDA for any drug candidate may not be accepted for substantive review, or
even  if  it  is  accepted  for  substantive  review  the  FDA  or  other  comparable  foreign  regulatory  authorities  may  require
additional studies or clinical trials, additional data, or additional manufacturing steps, or require other conditions before

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they  will  reconsider  or  approve  the  application,  which  could  increase  costs  and  cause  delays  in  the  marketing  approval
process  and  which  may  require  the  expenditure  of  additional  resources.  These  delays  would  also  impact  our  ability  to
identify  and  consummate  transactions  with  third-party  partners  to  further  develop,  obtain  marketing  approval  for  and/or
commercialize  our  drug  candidates.  In  addition,  the  FDA  or  other  comparable  foreign  regulatory  authorities  may  not
consider  sufficient  any  additional  required  studies,  clinical  trials,  data  or  information  that  we  perform  and  complete  or
generate, or we may decide to abandon the program.

It is possible that our drug candidates currently in development will never obtain marketing approval. 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 pursue strategic alternatives, including identifying and consummating transactions with third-party partners, to
further develop, obtain marketing approval for and/or commercialize our drug candidates, which would harm our business.

Clinical drug development involves a lengthy and expensive process, with an uncertain outcome. We may incur
additional costs or experience delays in completing, or ultimately be unable to complete, the development of and pursue
strategic  alternatives,  including  identifying  and  consummating  transactions  with  third-party  partners,  to  further
develop, obtain marketing approval for and/or commercialize our drug candidates.

The risk of failure for our drug candidates is high. It is impossible to predict when or if any of our drug candidates
will prove effective or safe in humans or will receive marketing approval. Before obtaining regulatory approval for the sale
of any drug candidate, we must complete preclinical development and then conduct extensive clinical trials to demonstrate
the  safety  and  efficacy  of  our  drug  candidates  in  humans  for  use  in  the  target  indication.  Clinical  testing  is  expensive,
difficult to design and implement, can take many years to complete and is inherently uncertain as to outcome.

A  failure  of  one  or  more  clinical  trials  can  occur  at  any  stage  of  testing.  For  example,  in  March  2023  we
announced that our Phase 2a study of zunsemetinib in patients with hidradenitis suppurativa did not meet its primary or
second efficacy endpoints, and in November 2023, we announced that our Phase 2b study of zunsemetinib in patients with
rheumatoid  arthritis  did  not  meet  its  primary  or  second  efficacy  endpoints,  following  which  we  discontinued  further
development of our MK2 inhibitor programs in immuno-inflammatory diseases, including halting enrollment in our Phase
2a study of zunsemetinib in patients with psoriatic arthritis. 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 drug candidates performed satisfactorily in preclinical studies and clinical trials have
nonetheless failed to obtain marketing approval of their drugs.

We may experience numerous unforeseen events during or as a result of clinical trials that could delay or prevent
our ability to pursue strategic alternatives, including identifying and consummating transactions with third-party partners,
to further develop, obtain marketing approval for and/or commercialize our drug candidates, including:

● regulators or IRBs may not authorize us or our investigators to commence a clinical trial or conduct a clinical

trial at a prospective trial site;

● we  may  experience  delays  in  reaching,  or  fail  to  reach,  agreement  on  acceptable  clinical  trial  contracts  or
clinical  trial  protocols  with  prospective  trial  sites  or  prospective  contract  research  organizations,  or  CROs,
the terms of which can be subject to extensive negotiation and may vary significantly among different CROs
and trial sites;

● clinical  trials  of  our  drug  candidates  may  produce  negative  or  inconclusive  results,  including  failure  to
demonstrate statistical significance, and we may decide, or regulators may require us, to conduct additional
clinical trials or abandon drug development programs;

● the  number  of  patients  required  for  clinical  trials  of  our  drug  candidates  may  be  larger  than  we  anticipate,
enrollment  in  these  clinical  trials  may  be  slower  than  we  anticipate,  or  participants  may  drop  out  of  these
clinical trials or fail to return for post-treatment follow-up at a higher rate than we anticipate;

● our drug candidates may have undesirable side effects or other unexpected characteristics, causing us or our

investigators, regulators or IRBs to suspend or terminate the trials;

● 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;

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● regulators  or  IRBs  may  require  that  we  or  our  investigators  suspend  or  terminate  clinical  development  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 drug candidates may be greater than we anticipate; and
● the supply or quality of our drug candidates or other materials necessary to conduct clinical trials of our drug

candidates may be insufficient or inadequate.

We could also encounter delays if a clinical trial is suspended or terminated by us, by the IRBs of the institutions
in which such trials are being conducted, by a data safety monitoring board for such trial or by the FDA or other regulatory
authorities. Such authorities may impose such a suspension or termination due to a number of factors, including failure to
conduct the clinical trial in accordance with regulatory requirements or our clinical protocols, inspection of the clinical trial
operations or trial site by the FDA or other regulatory authorities resulting in the imposition of a clinical hold, unforeseen
safety  issues  or  adverse  side  effects,  failure  to  demonstrate  a  benefit  from  using  a  drug,  changes  in  governmental
regulations or administrative actions or lack of adequate funding to continue the clinical trial.  

If we experience delays in the completion of, or termination of, any clinical trial of our drug candidates, our costs
will  increase,  our  drug  candidate  development  process  will  be  slowed,  the  commercial  prospects  of  our  drug  candidates
will be harmed, and our ability to pursue strategic alternatives, including identifying and consummating transactions with
third-party partners, to further develop, obtain marketing approval for and/or commercialize our drug candidates will be
delayed.  Any  of  these  occurrences  may  harm  our  business,  financial  condition  and  prospects  significantly.  In  addition,
many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately
lead to the denial of marketing approval of our drug candidates. If we are required to conduct additional clinical trials or
other testing of our drug candidates beyond those that we currently contemplate, if we are unable to successfully complete
clinical trials of our drug candidates or other testing, if the results of these trials or tests are not favorable or if there are
safety concerns, we may not be able to pursue strategic alternatives, including identifying and consummating transactions
with third-party partners, to further develop, obtain marketing approval for and/or commercialize our drug candidates, and
our potential third-party partners may:

● be delayed in obtaining marketing approval for our drug candidates;
● not obtain marketing approval at all;
● obtain marketing approval for indications or patient populations that are not as broad as intended or desired;
● obtain  marketing  approval  with  labeling  that  includes  significant  use  or  distribution  restrictions  or  safety

warnings;

● be subject to additional post-marketing testing requirements; or
● have the drug removed from the market after obtaining marketing approval.

Our drug development costs will also increase if we experience delays in testing. We do not know whether any of
our preclinical studies 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  our  potential
third-party partners may have the exclusive right to commercialize our drug candidates or allow competitors to bring drugs
to  market  before  such  third-party  partners  do,  which  would  impact  our  ability  to  successfully  identify  and  consummate
transactions  with  third-party  partners  to  further  develop,  obtain  marketing  approval  for  and/or  commercialize  our  drug
candidates.

If  we  experience  delays  or  difficulties  in  the  enrollment  of  subjects  in  clinical  trials,  our  ability  to  pursue
strategic  alternatives,  including  identifying  and  consummating  transactions  with  third-party  partners,  to  further
develop, obtain marketing approval for and/or commercialize our drug candidates could be delayed or prevented.

Successful  and  timely  completion  of  clinical  trials  will  require  that  we  enroll  a  sufficient  number  of  subjects.
Subject enrollment, a significant factor in the timing of clinical trials, is affected by many factors including the size and
nature  of  the  patient  population.  Trials  may  be  subject  to  delays  as  a  result  of  subject  enrollment  taking  longer  than
anticipated  or  subject  withdrawal,  including  as  a  result  of  factors  beyond  our  control.  We  may  not  be  able  to  initiate  or
continue clinical trials for our drug candidates if we are unable to locate and enroll a sufficient number of eligible patients
to participate in these trials as required by the FDA or similar regulatory authorities outside the United States. We cannot
predict  how  successful  we  will  be  at  enrolling  subjects  in  future  clinical  trials.  Subject  enrollment  is  affected  by  other
factors including:

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● the eligibility criteria for the trial in question;
● the perceived risks and benefits of the drug candidate in the trial;
● the availability of drugs approved to treat the disease in the trial;
● the efforts to facilitate timely enrollment in clinical trials;
● the patient referral practices of physicians;
● the ability to monitor patients adequately during and after treatment; and
● the proximity and availability of clinical trial sites for prospective patients.

Our inability to enroll a sufficient number of subjects for clinical trials would result in significant delays and could
require us or them to abandon one or more clinical trials altogether. Enrollment delays in these clinical trials may result in
increased development costs for our drug candidates, which would cause the value of our company to decline and limit our
ability to obtain additional financing. Furthermore, we rely on and expect to continue to rely on CROs and clinical trial
sites  to  ensure  the  proper  and  timely  conduct  of  our  clinical  trials  and  we  will  have  limited  influence  over  their
performance. Any delays in completing clinical trials would delay or prevent our ability to pursue strategic alternatives,
including  identifying  and  consummating  transactions  with  third-party  partners,  to  further  develop,  obtain  marketing
approval for and/or commercialize our drug candidates.

Our clinical trials may fail to demonstrate the safety and efficacy of our drug candidates, or serious adverse or
unacceptable side effects may be identified during the development of our drug candidates, which could increase our
costs or necessitate the abandonment or limitation of the development of our drug candidates or prevent or delay our
ability to pursue strategic alternatives, including identifying and consummating transactions with third-party partners,
to further develop, obtain marketing approval for and/or commercialize our drug candidates.

If our drug candidates are associated with side effects in clinical trials or have characteristics that are unexpected,
our costs could increase or we may need to abandon their development or limit development to more narrow uses in which
the side effects or other characteristics are less prevalent, less severe or more acceptable from a risk-benefit perspective.
The FDA or an IRB may also require that we suspend, discontinue, or limit our clinical trials based on safety information.
Such  findings  could  further  result  in  regulatory  authorities  failing  to  provide  marketing  authorization  for  our  drug
candidates. Many drug candidates that initially showed promise in early stage testing have later been found to cause side
effects that prevented further development of the drug candidate.

Before  any  potential  third-party  partners  can  obtain  marketing  approvals  for  the  commercial  sale  of  our  drug
candidates,  we  must  demonstrate  through  lengthy,  complex  and  expensive  preclinical  testing  and  clinical  trials  that  our
drug candidates are both safe and effective for use in each target indication, and failures can occur at any stage of testing.
Clinical trials often fail to demonstrate safety and efficacy of the drug candidate studied for the target indication.

Additionally,  if  we  or  others  identify  undesirable  side  effects  caused  by  our  drugs,  a  number  of  potentially

significant negative consequences could result, including:

● we may need to abandon the development or limit the further development of our drug candidates, including

in various populations and for certain indications;  

● regulatory authorities may withdraw approval to market such product;
● regulatory authorities may require additional warnings on the labels;
● a medication guide outlining the risks of such side effects for distribution to patients may be required;
● we could be sued and held liable for harm caused to patients;
● our reputation and physician or patient acceptance of our drug candidates, if approved, may suffer; and
● our ability to pursue strategic alternatives, including identifying and consummating transactions with third-
party partners, to further develop, obtain marketing approval for and/or commercialize our drug candidates
would be harmed.

Any  of  these  events  could  prevent  us  from  pursuing  strategic  alternatives,  including  identifying  and
consummating  transactions  with  third-party  partners,  to  further  develop,  obtain  marketing  approval  for  and/or
commercialize the particular drug candidate and could significantly harm our business, results of operations and prospects.

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Interim, topline and preliminary data from our clinical trials that we announce or publish from time to time
may change as more subject data become available and are subject to audit and verification procedures that could result
in material changes in the final data.

From time to time, we may publicly disclose interim, topline or preliminary data from our clinical trials, which are
based on a preliminary analysis of then-available data, and the results and related findings and conclusions are subject to
change  following  a  full  analysis  of  all  data  related  to  the  particular  trial.  We  also  make  assumptions,  estimations,
calculations and conclusions as part of our analyses of data, and we may not have received or had the opportunity to fully
and carefully evaluate all data. In addition, we may report preliminary analyses of only certain endpoints rather than all
endpoints. As a result, the interim, topline or preliminary results that we report may differ from future results of the same
trials, or different conclusions or considerations may qualify such results, once additional data have been received and fully
evaluated.  Topline  data  also  remain  subject  to  audit  and  verification  procedures  that  may  result  in  the  final  data  being
materially different from the preliminary data we previously published. As a result, interim, topline and preliminary data
should be viewed with caution until the final data are available. We may also disclose interim data from our clinical trials.
Interim data from clinical trials that we may complete are subject to the risk that one or more of the clinical outcomes may
materially change as subject enrollment continues and more subject data become available. Adverse differences between
interim, topline or preliminary data and final data could significantly harm our reputation and business prospects. Further,
disclosure of interim, topline or preliminary data by us or by our competitors could result in volatility in the price of our
common stock.

Further,  others,  including  regulatory  agencies,  may  not  accept  or  agree  with  our  assumptions,  estimates,
calculations, conclusions or analyses or may interpret or weigh the importance of data differently, which could impact the
potential  of  the  particular  program,  the  likelihood  of  marketing  approval  or  commercialization  of  the  particular  drug
candidate, any approved product, and our company in general. In addition, the information we choose to publicly disclose
regarding a particular study or clinical trial is derived from information that is typically extensive, and you or others may
not agree with what we determine is material or otherwise appropriate information to include in our disclosure, and any
information  we  determine  not  to  disclose  may  ultimately  be  deemed  significant  with  respect  to  future  decisions,
conclusions, views, activities or otherwise regarding a particular program, drug candidate or our business.

If  the  interim,  topline  or  preliminary  data  that  we  report  differ  from  actual  results,  or  if  others,  including
regulatory  authorities,  disagree  with  the  conclusions  reached,  our  ability  to  pursue  strategic  alternatives,  including
identifying  and  consummating  transactions  with  third-party  partners,  to  further  develop,  obtain  marketing  approval  for
and/or commercialize our drug candidates may be harmed, which could harm our business, operating results, prospects or
financial condition.

Changes in methods of drug candidate manufacturing or formulation may result in additional costs or delay.

As  drug  candidates  are  developed  through  preclinical  studies  to  late-stage  clinical  trials  towards  approval  and
commercialization,  it  is  common  that  various  aspects  of  the  development  program,  such  as  manufacturing  methods  and
formulation, are altered along the way in an effort to optimize processes and results. Such changes carry the risk that they
will not achieve these intended objectives, and may also require additional testing, FDA notification or FDA approval. Any
of these changes could cause our drug candidates to perform differently and affect the results of planned clinical trials or
other future clinical trials conducted with the altered materials. This could delay completion of clinical trials, require the
conduct of bridging clinical trials or the repetition of one or more clinical trials, increase clinical trial costs, delay approval
of our drug candidates and jeopardize our ability to pursue strategic alternatives, including identifying and consummating
transactions  with  third-party  partners,  to  further  develop,  obtain  marketing  approval  for  and/or  commercialize  our  drug
candidates.

We  have  conducted  and  may  in  the  future  conduct  clinical  trials  for  our  drug  candidates  outside  the  United

States. The FDA, EMA or comparable foreign regulatory authorities may not accept data from such trials.

We have conducted and may in the future conduct clinical trials for our drug candidates outside the United States.
The acceptance of trial data from clinical trials conducted outside the United States or another jurisdiction by the FDA or
comparable foreign regulatory authorities may be subject to certain conditions or may not be accepted at all. Such foreign
trials would be subject to the applicable local laws of the foreign jurisdictions where the trials are conducted. There can be
no  assurance  that  the  FDA,  EMA  or  any  comparable  foreign  regulatory  authority  will  accept  data  from  trials  conducted
outside of the United States or the applicable jurisdiction. If the FDA, EMA or any comparable regulatory authority does

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not accept such data, it would result in the need for additional trials, which would be costly and time-consuming and delay
aspects  of  our  business  plan,  and  which  may  result  in  our  drug  candidates  not  receiving  approval  or  clearance  for
commercialization in the applicable jurisdiction.

In addition, any escalation of political tensions, economic instability, military activity or civil hostilities outside
the United States could disrupt our ability to conduct trials outside of the United States, or delay or adversely affect the
timeliness of such trials. This could result in the need for alternative trial sites, which could be costly and time-consuming
and delay the clinical development of our drug candidates.

We may not be successful in our efforts to increase our pipeline of drug candidates, including by in-licensing

or acquiring additional drug candidates.

A key element of our strategy is to build and expand our pipeline of drug candidates. To build our pipeline, we
may seek to in-license or acquire additional drug candidates, in addition to our in-house capabilities. We may not be able to
identify or develop drug candidates that are safe, tolerable and effective. Even if we are successful in continuing to build
our  pipeline,  the  potential  drug  candidates  that  we  develop,  in-license  or  acquire  may  not  be  suitable  for  clinical
development, including as a result of being shown to have harmful side effects or other characteristics that indicate that
they are unlikely to be drugs that will receive marketing approval and achieve market acceptance.

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

on drug candidates or indications that may be more profitable or for which there is a greater likelihood of success.

Because  we  have  limited  financial  and  management  resources,  we  focus  on  development  programs  and  drug
candidates  that  we  identify  for  specific  indications  or  therapeutic  areas.  As  a  result,  we  may  forego  or  delay  pursuit  of
opportunities  with  other  drug  candidates  or  for  other  indications  or  therapeutic  areas  that  later  prove  to  have  greater
commercial potential. Our resource allocation decisions may cause us to fail to capitalize on viable commercial drugs or
profitable market opportunities. Our spending on current and future development programs and drug candidates for specific
indications  or  therapeutics  areas  may  not  yield  any  commercially  viable  drugs.  If  we  do  not  accurately  evaluate  the
commercial  potential  or  target  market  for  a  particular  drug  candidate,  we  may  relinquish  valuable  rights  to  that  drug
candidate through partnerships, licensing or other arrangements in cases in which it would have been more advantageous
for us to retain sole development and commercialization rights to such drug candidate.

For any of our drug candidates that receive marketing approval, our potential third-party partners 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.

For any of our drug candidates that receive marketing approval, our potential third-party partners may fail to gain
sufficient market acceptance by physicians, patients, third-party payors and others in the medical community. If such third-
party partners fail to obtain an adequate level of acceptance for our drug candidates, we may not earn significant revenue
and we may not become profitable. The degree of market acceptance of any drug candidate, if approved, will depend on a
number of factors, including:

● the efficacy, safety and potential advantages compared to alternative treatments;
● our potential third-party partners’ ability to offer the products for sale at competitive prices;
● the convenience and ease of administration compared to alternative treatments;
● the  willingness  of  the  target  patient  population  to  try  new  treatments  and  of  physicians  to  prescribe  these

treatments;

● the ability of our potential third-party partners to retain a sales force;
● the strength of our potential third-party partners’ marketing and distribution support;
● the availability of third-party payor coverage and adequate reimbursement or the willingness of patients to

pay for these products;

● the prevalence and severity of any side effects; and
● any restrictions on the use of our products together with other medications.

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We face substantial competition, which may result in others discovering, developing or commercializing drugs

before or more successfully than we do.

The  development  and  commercialization  of  new  drugs  is  highly  competitive.  We  will  face  competition  with
respect to any drug candidates that we may seek to develop or through our potential third-party partners, commercialize, in
the  future,  from  many  different  sources,  including  major  pharmaceutical,  biotechnology  and  specialty  pharmaceutical
companies, academic institutions and governmental agencies and public and private research institutions.

With  respect  to  ATI-1777  as  a  potential  treatment  for  atopic  dermatitis,  there  are  several  different  types  of
therapies  in  the  atopic  dermatitis  market,  such  as  biologics,  oral  and  topical  corticosteroids,  oral  and  topical  calcineurin
inhibitors, oral mycophenolate products, other JAK inhibitors, other oral antibiotics and antihistamines and phototherapy.
There are also several prescription, non-prescription and OTC topical products, including PDE4 inhibitors, utilized to treat
atopic  dermatitis.  These  types  of  drugs  are  produced  and  sold,  or  are  approved  for  marketing,  by  large  pharmaceutical
companies, including AbbVie, Incyte, LEO Pharma A/S, Pfizer, and Regeneron Pharmaceuticals and Sanofi. In addition,
we are aware of a number of companies including large pharmaceutical companies, such as Amgen, Dermavant Sciences,
Eli  Lilly,  LEO  Pharma  A/S  and  Pfizer,  developing  and  conducting  clinical  trials  for  investigational  drug  candidates  that
could compete with ATI-1777, in each case if approved, for the treatment of atopic dermatitis.

The  commercial  opportunity  for  our  drug  candidates,  if  approved,  could  be  reduced  or  eliminated  if  our
competitors develop and commercialize drugs that are safer, more effective, have fewer or less severe side effects, are more
convenient  or  are  less  expensive  than  a  drug  that  we  may  develop.  Our  competitors  also  may  obtain  FDA  or  other
regulatory approval for their drugs more rapidly than our potential third-party partners’ may obtain approval for our drug
candidates, which could result in our competitors establishing a strong market position before our drug candidates are able
to enter the market.

Many of the companies against which we are competing, or against which we may compete in the future, have
significantly  greater  financial  resources  and  expertise  in  research  and  development,  manufacturing,  and  preclinical  and
clinical development than we do. Mergers and acquisitions in the pharmaceutical and biotechnology industries may result
in even more resources being concentrated among a smaller number of our competitors. Smaller or early-stage companies
may  also  prove  to  be  significant  competitors,  particularly  through  collaborative  arrangements  with  large  and  established
companies.  These  competitors  also  compete  with  us  in  recruiting  and  retaining  qualified  scientific  and  management
personnel and establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies
complementary to, or that may be necessary for, our development programs.

The  success  of  our  drug  candidates,  if  approved,  will  depend  significantly  on  coverage  and  adequate

reimbursement or the willingness of patients to pay for these products.

We believe the success of our drug candidates, if approved, will depend on obtaining and maintaining coverage
and adequate reimbursement as a prescription treatment or in the absence of coverage and adequate reimbursement, on the
extent to which patients will be willing to pay out of pocket for these prescription drug products.

Third-party  payors  determine  which  prescription  drug  products  they  will  cover  and  establish  reimbursement
levels.  Reimbursement  by  a  third-party  payor  may  depend  upon  a  number  of  factors,  including:  the  third-party  payor’s
determination that a product is safe, effective, and medically necessary; appropriate for the specific patient; cost-effective;
supported  by  peer-reviewed  medical  journals  or  current  clinical  practice  guidelines;  and  whether  there  are  competitive
products, either branded or generic, and the pricing of those products.  Many private third-party payors, such as managed
care plans, manage access to drug products’ coverage partly to control costs for their plans, and may use drug formularies
and medical policies to limit their exposure. Obtaining and maintaining favorable reimbursement can be a time-consuming
and  expensive  process,  and  our  potential  third-party  partners  may  not  be  able  to  negotiate  or  continue  to  negotiate
reimbursement or pricing terms for our products with third-party payors at levels that are profitable to us, or at all. Further,
coverage  policies  and  third-party  reimbursement  rates  may  change  at  any  time.  Even  if  favorable  coverage  and
reimbursement  status  is  attained  for  one  or  more  products  which  receive  regulatory  approval,  less  favorable  coverage
policies and reimbursement rates may be implemented in the future.

In  addition  to  uncertainties  surrounding  coverage  policies,  there  are  periodic  changes  to  reimbursement.  Third-
party  payors  regularly  update  reimbursement  amounts  and  also  from  time  to  time  revise  the  methodologies  used  to
determine reimbursement amounts.  Accordingly, these updates could impact the demand for our drug candidates, if

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approved. Our drug candidates, if approved, may not be considered cost effective, and government and third-party private
health  insurance  coverage  and  reimbursement  may  not  be  available  to  patients  or  sufficient  to  allow  our  potential  third-
party  partners  to  sell  our  drug  candidates,  if  approved,  on  a  competitive  and  profitable  basis.  Our  results  of  operations
could be adversely affected by the Affordable Care Act and by other health care legislative reforms that may be enacted or
adopted in the future. In addition, increasing emphasis on managed care in the United States will continue to put pressure
on  the  pricing  of  pharmaceutical  products.  Cost  control  initiatives  could  decrease  the  price  that  our  potential  third-party
partners could receive for any of our drug candidates, if approved, and could adversely affect our profitability. We cannot
predict  how  pending  and  future  health  care  legislation  will  impact  our  business,  and  any  changes  in  coverage  and
reimbursement that further restricts coverage of our drug candidates could harm our business.

Foreign governments also have their own healthcare reimbursement systems, which vary significantly by country
and region, and we cannot be sure that coverage and adequate reimbursement will be made available with respect to our
drug candidates, if approved, under any foreign reimbursement system. In some foreign countries, including major markets
in the European Union and Japan, the pricing of prescription pharmaceuticals is subject to governmental control. In these
countries,  pricing  negotiations  with  governmental  authorities  can  take  up  to  12  months  or  longer  after  the  receipt  of
regulatory marketing approval for a product.  To obtain reimbursement or pricing approval in some countries, we may be
required  to  conduct  a  pharmacoeconomic  study  that  compares  the  cost-effectiveness  of  our  drug  candidate  to  other
available therapies. Such pharmacoeconomic studies can be costly and the results uncertain. Our business could be harmed
if reimbursement of our drug candidates, if approved, is unavailable or limited in scope or amount or if pricing is set at
unsatisfactory levels.

Product  liability  lawsuits  against  us  could  cause  us  to  incur  substantial  liabilities  and  to  limit
commercialization of any of our drug candidates that we may develop and are commercialized by our potential third-
party partners or impact any commercial products that we have previously sold or are being sold by third-party partners.

We  face  an  inherent  risk  of  product  liability  exposure  related  to  the  testing  of  our  drug  candidates  in  human
clinical trials and an even greater risk relating to any of our commercial products that we have previously sold or are being
sold by third-party partners. If we cannot successfully defend ourselves against claims that our commercial products that
we  have  previously  sold  or  are  being  sold  by  third-party  partners,  or  drug  candidates,  caused  injuries,  we  will  incur
substantial liabilities. Regardless of merit or eventual outcome, product liability claims may result in:

● decreased demand for any drug candidates that we may develop and, if approved, are commercialized by our

potential third-party partners;

● injury to our reputation and significant negative media attention;
● withdrawal of clinical trial participants;
● significant costs to defend the related litigation;
● substantial monetary awards paid to trial participants or patients;
● loss of revenue;
● reduced resources of our management to pursue our business strategy; and
● our inability to pursue strategic alternatives, including identifying and consummating transactions with third-
party partners, to further develop, obtain marketing approval for and/or commercialize our drug candidates.

We currently hold $10 million in product liability insurance coverage in the aggregate, with a per incident limit of
$10  million,  which  may  not  be  adequate  to  cover  all  liabilities  that  we  may  incur.  Insurance  coverage  is  increasingly
expensive. We may need to increase our insurance coverage and 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.

Risks Related to Our Dependence on Third Parties

We  rely  on  third  parties  to  conduct  clinical  trials  for  our  drug  candidates,  and  those  third  parties  may  not

perform satisfactorily, including failing to meet deadlines for the completion of such trials.

We engage CROs to conduct clinical trials of our drug candidates. We expect to continue to rely on third parties,
such  as  clinical  data  management  organizations,  medical  institutions  and  clinical  investigators,  to  conduct  those  clinical
trials. If any of our relationships with these third parties terminate, we may not be able to timely enter into arrangements
with  alternative  third  parties  or  to  do  so  on  commercially  reasonable  terms,  if  at  all.  In  addition,  any  third  parties
conducting

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our clinical trials will not be our employees, and except for remedies available to us under our agreements with such third
parties, we cannot control whether or not they devote sufficient time and resources to our clinical programs. If these third
parties do not successfully carry out their contractual duties or obligations or meet expected deadlines, if they need to be
replaced or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our
clinical protocols, regulatory requirements or for other reasons, our clinical trials may be extended, delayed or terminated
and  we  may  not  be  able  to  identify  and  consummate  transactions  with  third-party  partners  to  further  develop,  obtain
marketing  approval  for  and/or  commercialize  our  drug  candidates.  Consequently,  our  results  of  operations  and  the
commercial prospects for our drug candidates would be harmed, our costs could increase substantially and our ability to
earn revenue from those partnerships could be delayed significantly.

Switching or adding CROs involves substantial cost and requires management time and focus. In addition, there is
a natural transition period when a new CRO commences work. As a result, delays occur, which can materially impact our
ability to meet our desired clinical development timelines. Though we intend to carefully manage our relationships with
our CROs, there can be no assurance that we will not encounter challenges or delays in the future or that these delays or
challenges will not have a material adverse impact on our business, financial condition and prospects.

We rely on these parties for execution of our preclinical studies and clinical trials, and generally do not control
their activities. Our reliance on these third parties for research and development activities will reduce our control over these
activities but will not relieve us of our responsibilities. For example, we will 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  GCPs,  for  conducting,
recording and reporting the results of clinical trials to assure that data and reported results are credible and accurate and
that  the  rights,  integrity  and  confidentiality  of  trial  participants  are  protected.  We  also  are  required  to  register  ongoing
clinical  trials  and  post  the  results  of  completed  clinical  trials  on  a  government-sponsored  database,  ClinicalTrials.gov,
within specified timeframes. Failure to do so can result in fines, adverse publicity and civil and criminal sanctions. If we or
any  of  our  CROs  fail  to  comply  with  applicable  GCPs,  the  clinical  data  generated  in  our  clinical  trials  may  be  deemed
unreliable  and  the  FDA  or  comparable  foreign  regulatory  authorities  may  require  us  to  perform  additional  clinical  trials
before approving marketing applications. We cannot assure you that upon inspection by a given regulatory authority, such
regulatory authority will determine that any of our clinical trials complies with GCP regulations. In addition, our clinical
trials must be conducted with drug product produced under cGMP regulations. Our failure to comply with these regulations
may  require  us  to  repeat  clinical  trials,  which  would  delay  the  marketing  approval  process  for  our  potential  third-party
partners.

We also rely on other third parties to store and distribute drug supplies for our clinical trials. Any performance
failure  on  the  part  of  our  distributors  could  delay  clinical  development  or  marketing  approval  of  our  drug  candidates  or
commercialization of our drug candidates, if approved, producing additional losses and depriving us of potential revenue.

We  contract  with  third  parties  for  the  manufacture  and  supply  of  our  drug  candidates  for  preclinical  and
clinical testing. This reliance on third parties increases the risk that we will not have sufficient quantities of our drug
candidates or such quantities at an acceptable cost, which could delay, prevent or impair our development efforts.

We do not have any manufacturing facilities. We currently rely, and expect to continue to rely, on third parties for
the  manufacture  and  supply  of  our  drug  candidates  for  preclinical  and  clinical  testing.  This  reliance  on  third  parties
increases  the  risk  that  we  will  not  have  sufficient  quantities  of  our  drug  candidates  at  an  acceptable  cost  and/or  quality,
which could delay, prevent or impair our ability to timely conduct our clinical trials or our other development efforts.

The  facilities  used  by  our  contract  manufacturers  to  manufacture  our  drug  candidates  must  be  approved  by  the
FDA  or  comparable  foreign  regulatory  authorities  pursuant  to  inspections  that  will  be  conducted  after  the  NDA  or
comparable  marketing  application  is  submitted  to  the  FDA  or  other  regulatory  authority.  We  do  not  have  control  over  a
supplier’s  or  manufacturer’s  compliance  with  laws,  regulations  and  applicable  cGMP  standards  and  other  laws  and
regulations,  such  as  those  related  to  environmental  health  and  safety  matters.  If  our  contract  manufacturers  cannot
successfully manufacture material that conforms to our specifications and the strict regulatory requirements of the FDA or
others, they will not be able to secure and maintain regulatory approval for their manufacturing facilities. In addition, we
have no control over the ability of our contract manufacturers to maintain adequate quality control, quality assurance and
qualified  personnel.  If  the  FDA  or  a  comparable  foreign  regulatory  authority  does  not  approve  these  facilities  for  the
manufacture of our drug candidates or if it withdraws any such approval in the future, we may need to find alternative

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manufacturing facilities, which could significantly impact our ability to develop, and identify and consummate transactions
with third-party partners to further develop, obtain marketing approval for and/or commercialize, our drug candidates.

We may be unable to establish any agreements with future third-party manufacturers or do so on acceptable terms.
Even if we are able to establish agreements with third-party manufacturers, reliance on third-party manufacturers entails
additional risks, including:

● reliance on the third party for regulatory compliance and quality assurance;
● 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;
● the possible increase in costs by our third-party suppliers for the active pharmaceutical ingredients for our

drug candidates; and

● the  possible  termination  or  nonrenewal  of  the  agreement  by  the  third  party  at  a  time  that  is  costly  or

inconvenient for us.

Third-party manufacturers may not be able to comply with cGMP regulations or similar regulatory requirements
outside the United States. Our failure, or the failure of our third-party manufacturers, to comply with applicable regulations
could result in sanctions being imposed on us, including clinical holds, fines, injunctions, civil penalties, delays, suspension
or  withdrawal  of  approvals,  license  revocation,  seizures  or  recalls  of  products,  operating  restrictions  and  criminal
prosecutions, any of which could significantly and adversely affect supplies of our drug candidates. 

Our drug candidates may compete with other products and drug candidates for access to manufacturing facilities.
There  are  a  limited  number  of  manufacturers  that  operate  under  cGMP  regulations  and  that  might  be  capable  of
manufacturing  for  us.  Any  performance  failure  on  the  part  of  our  existing  or  future  manufacturers  could  delay  clinical
development or marketing approval of our drug candidates.

If  our  current  contract  manufacturers  cannot  perform  as  agreed,  we  may  be  required  to  replace  such
manufacturers.  We  may  incur  added  costs  and  delays  in  identifying  and  qualifying  any  such  replacement.  We  do  not
currently  have  arrangements  in  place  for  redundant  supply  or  a  second  source  for  the  active  pharmaceutical  ingredients
and/or drug product for our drug candidates.

We expect to continue to depend on third-party contract manufacturers for the foreseeable future. Our current and
anticipated  future  dependence  upon  others  for  the  manufacture  of  our  drug  candidates  may  adversely  affect  our  future
profit  margins  and  our  ability  to  pursue  strategic  alternatives,  including  identifying  and  consummating  transactions  with
third-party  partners,  to  further  develop,  obtain  marketing  approval  for  and/or  commercialize  our  drug  candidates  on  a
timely and competitive basis.

We  intend  to  pursue  strategic  alternatives,  including  identifying  and  consummating  transactions  with  third-
party  partners,  to  further  develop,  obtain  marketing  approval  for  and/or  commercialize  our  drug  candidates.  If  those
arrangements are not successful, we may not be able to capitalize on the market potential of these drug candidates.

We intend to pursue strategic alternatives, including identifying and consummating transactions with third-party
partners, to further develop, obtain marketing approval for and/or commercialize our drug candidates. Our likely partners
for  any  such  arrangements  include  large  and  mid-size  pharmaceutical  companies,  regional  and  national  pharmaceutical
companies and biotechnology companies. If we do enter into any such arrangements with any third parties, we will likely
have  limited  control  over  the  amount  and  timing  of  resources  that  our  partners  dedicate  to  the  development  or
commercialization  of  our  drug  candidates.  Our  ability  to  earn  revenue  from  these  arrangements  will  depend  on  our
partners’ abilities to successfully perform the functions assigned to them in these arrangements.

Partnerships involving our drug candidates would pose the following risks to us:

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

arrangements;

● partners may not perform their obligations as expected;
● partners may not pursue development, marketing approval or commercialization of any drug candidates that

achieve marketing approval or may elect not to continue or renew development or commercialization

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programs  based  on  clinical  trial  results,  changes  in  the  partners’  strategic  focus  or  available  funding,  or
external factors, such as an acquisition, that divert resources or create competing priorities;

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

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

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

● a partner with marketing and distribution rights to one or more of our drug candidates that achieve marketing
approval may not commit sufficient resources to the marketing and distribution of such drug candidates;
● disagreements  with  partners,  including  disagreements  over  proprietary  rights,  contract  interpretation  or  the
preferred  course  of  development  or  commercialization,  might  cause  delays  or  termination  of  the  research,
development  or  commercialization  of  drug  candidates,  might  lead  to  additional  responsibilities  for  us  with
respect to drug candidates, or might result in litigation or arbitration, any of which would be time-consuming
and expensive;

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

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

potential liability; and

● partnerships may be terminated for the convenience of the partner and, if terminated, we could be required to
raise  additional  capital  to  pursue  further  development  and/or  commercialization  of  the  applicable  drug
candidates.

Partnership  agreements  may  not  lead  to  development,  marketing  approval  or  commercialization  of  drug
candidates in the most efficient manner or at all. If a present or future partner of ours were to be involved in a business
combination,  the  continued  pursuit  and  emphasis  on  our  drug  development  or  commercialization  program  could  be
delayed, diminished or terminated. 

If  we  are  not  able  to  establish  partnerships,  we  may  have  to  alter  our  development  and  commercialization

plans.

Our drug development programs for our drug candidates will require substantial additional capital. We intend to
partner  with  pharmaceutical  and  biotechnology  companies  for  the  further  development  and/or  commercialization  of  our
drug candidates.

We face significant competition in seeking appropriate partners. Whether we reach a definitive agreement for a
partnership will depend, among other things, upon our assessment of the partner’s resources and expertise, the terms and
conditions of the proposed arrangement and the proposed partner’s evaluation of a number of factors. Those factors may
include  the  design  or  results  of  clinical  trials,  the  likelihood  of  approval  by  the  FDA  or  similar  regulatory  authorities
outside the United States, the potential market for the subject drug candidate, the costs and complexities of manufacturing
and  delivering  such  drug  candidate  to  patients,  the  potential  of  competing  products,  the  existence  of  uncertainty  with
respect  to  our  ownership  of  technology,  which  can  exist  if  there  is  a  challenge  to  such  ownership  without  regard  to  the
merits  of  the  challenge,  and  industry  and  market  conditions  generally.  The  partner  may  also  consider  alternative  drug
candidates or technologies for similar indications that may be available to partner on and whether such a partnership could
be more attractive than the one with us for our drug candidate. Partnerships are complex and time-consuming to negotiate
and  document.  In  addition,  there  have  been  a  significant  number  of  recent  business  combinations  among  large
pharmaceutical companies that have resulted in a reduced number of potential future partners.

We may not be able to negotiate partnerships on a timely basis, on acceptable terms, or at all. If we are unable to
do so, we may have to curtail the development of such drug candidate, reduce or delay its development program or one or
more of our other development programs or increase our expenditures and undertake development or commercialization
activities at our own expense. If we elect to increase our expenditures to fund development or commercialization activities

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on our own, we may need to obtain additional capital, which may not be available to us on acceptable terms or at all. If we
do  not  have  sufficient  funds,  we  may  not  be  able  to  further  develop  our  drug  candidates  or  bring  them  to  market  and
generate revenue.

We  may  not  have  access  to  all  information  regarding  our  drug  candidates  that  are  subject  to  partnership
agreements.  Consequently,  our  ability  to  inform  our  stockholders  about  the  status  of  our  drug  candidates  that  are
subject to these agreements, and our ability to make business and operational decisions, may be limited.

We  may  not  have  access  to  all  information  regarding  our  drug  candidates  that  may  become  subject  to  agreements
with  partners,  including  potentially  material  information  about  clinical  trial  design,  execution  and  timing,  safety  and
efficacy,  clinical  trial  results,  regulatory  affairs,  manufacturing,  marketing,  sales  and  other  areas  known  by  our  potential
partners.  In  addition,  we  may  have  confidentiality  obligations  under  our  agreements  with  such  partners.  Therefore,  our
ability to keep our stockholders informed about the status of our drug candidates will be limited by the degree to which our
partners keep us informed and by the degree to which our partners allow us to disclose information to the public or provide
such information to the public themselves. If our partners do not timely inform us about the status of our drug candidates
that are the subject of the partnership, we may make operational and investment decisions that we would not have made
had we been fully informed, which may have an adverse impact on our business, prospects, financial condition and results
of operations.

Risks Related to Our Intellectual Property

If we are unable to obtain and maintain patent protection for our drug candidates, or if the scope of the patent
protection  obtained  is  not  sufficiently  broad,  our  competitors  could  develop  and  commercialize  technology  and  drugs
similar  or  identical  to  ours,  and  ability  to  successfully  identify  a  potential  third-party  partner  to  commercialize  our
technology and drug candidates may be impaired.

Our success depends in large part on our ability to obtain and maintain patent protection in the United States and
other countries with respect to our drug candidates. We seek to protect our proprietary position by filing patent applications
in the United States and abroad related to our drug candidates. 

The patent prosecution process is expensive and time-consuming, however, 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 development output before it is too late to obtain patent protection. We may
not  have  the  right  to  control  the  preparation,  filing  and  prosecution  of  patent  applications,  or  to  maintain  the  rights  to
patents licensed to third parties. Therefore, these patents and applications may not be prosecuted and enforced in a manner
consistent with the best interests of our business.

The  patent  position  of  biotechnology  and  pharmaceutical  companies  generally  is  highly  uncertain,  involves
complex legal and factual questions and has in recent years been the subject of much litigation. In addition, the laws of
foreign countries may not protect our rights to the same extent as the laws of the United States or vice versa. For example,
European  patent  law  restricts  the  patentability  of  methods  of  treatment  of  the  human  body  more  than  U.S.  law  does.
Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the
United States and other jurisdictions are typically not published until 18 months after filing, or in some cases not at all.
Therefore, we cannot know with certainty whether we or our licensors were the first to make the inventions claimed in our
patents  or  pending  patent  applications,  or  that  we  or  our  licensors  were  the  first  to  file  for  patent  protection  of  such
inventions. As a result, the issuance, scope, validity, enforceability and commercial value of our patent rights are highly
uncertain. Our pending and future patent applications may not result in patents being issued that protect our technology or
drug candidates, in whole or in part, or which effectively prevent others from commercializing competitive technologies
and drug candidates. Changes in either the patent laws or interpretation of the patent laws in the United States and other
countries may diminish the value of our patents or narrow the scope of our patent protection.

Moreover, we may be subject to a third-party preissuance submission of prior art to the U.S. Patent and Trademark
Office,  or  USPTO,  or  other  foreign  patent  office,  or  become  involved  in  opposition,  central  revocation,  derivation,
reexamination, inter partes review, post-grant review or interference proceedings challenging our patent rights or the patent
rights of others. An adverse determination in any such submission, proceeding or litigation could reduce the scope of, or
invalidate, our patent rights, allow third parties to commercialize our technology or drug candidates and compete directly
with us, without payment to us, or result in the inability of our potential third-party partners to manufacture or

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commercialize  our  drug  candidates  without  infringing  third-party  patent  rights.  In  addition,  if  the  breadth  or  strength  of
protection  provided  by  our  patents  and  patent  applications  that  we  own  or  license  is  threatened,  it  could  dissuade
companies from partnering with us to license, develop and/or commercialize our drug 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  our  potential  third-party  partners  or  otherwise
provide us or our potential third-party partners with any competitive advantage. Competitors may be able to circumvent our
patents by developing similar or alternative technologies or drugs in a non-infringing manner.

In addition, the issuance of a patent is not conclusive as to its inventorship, scope, validity or enforceability, and
our patents may be challenged in the courts or patent offices in the United States and abroad. Such challenges may result in
loss of exclusivity or freedom to operate or in patent claims being narrowed, invalidated or held unenforceable, in whole or
in part, which could limit the ability to stop others from using or commercializing similar or identical technology and drug
candidates, or limit the duration of the patent protection of our technology and drug candidates. Our issued U.S. patents
covering zunsemetinib expire in 2034. Our issued U.S. patent covering ATI-1777 expires in 2038. Our issued U.S. patent
directed to ATI-2138 expires in 2039. We are pursuing patent protection for methods of use, polymorphs and methods of
manufacture for our drug candidates that may extend the term of patent protection. Given the amount of time required for
the  development,  testing  and  regulatory  review  of  new  drug  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  or  our
potential  third-party  partners  with  sufficient  rights  to  exclude  others  from  commercializing  drugs  similar  or  identical  to
ours.

We  may  become  involved  in  lawsuits  to  protect  or  enforce  our  patents  or  other  intellectual  property,  which
could  be  expensive,  time-consuming  and  unsuccessful.  Further,  our  issued  patents  could  be  found  invalid  or
unenforceable if challenged in court.

Competitors  may  infringe  our  issued  patents  or  other  intellectual  property.  Our  pending  applications  cannot  be
enforced against third parties practicing the technology claimed in such applications unless and until a patent issues from
such applications. To counter infringement or unauthorized use, we may be required to file infringement 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 patents or that our patents are invalid or unenforceable. Grounds for
a validity challenge could be an alleged failure to meet any of several statutory requirements, including lack of novelty,
obviousness,  non-enablement  or  insufficient  written  description,  or  similar  requirements  outside  of  the  United  States.
Grounds  for  an  unenforceability  assertion  could  be  an  allegation  that  someone  connected  with  prosecution  of  the  patent
withheld relevant information from the USPTO or made a misleading statement during prosecution. Third parties may also
raise similar claims before the USPTO, in post-grant proceedings such as ex parte reexaminations, inter partes review, or
post-grant review, or oppositions or similar administrative proceedings outside the United States, in parallel with litigation
or,  even  outside  the  context  of  litigation.  The  outcome  following  legal  assertions  of  invalidity  and  unenforceability  is
unpredictable. With respect to the validity question, for example, we cannot be certain that there is no invalidating prior art
of which we and the patent examiner were unaware during prosecution. If a defendant were to prevail on a legal assertion
of  invalidity  or  unenforceability,  we  would  lose  at  least  part,  and  perhaps  all,  of  the  patent  protection  on  our  drug
candidates. Such a loss of patent protection would harm our business. 

In such a proceeding, a court or administrative board may decide that a patent of ours is invalid or unenforceable,
in whole or in part, construe the patent’s claims narrowly or refuse to stop the other party from using the technology at
issue on the grounds that our patents do not cover the technology. An adverse result in any such proceeding could put one
or  more  of  our  patents  at  risk  of  being  invalidated  or  interpreted  narrowly.  We  may  find  it  impractical  or  undesirable  to
enforce our intellectual property against some third parties. 

Interference or derivation proceedings provoked by third parties or brought by us or declared by the USPTO may
be  necessary  to  determine  the  priority  of  inventions  with  respect  to  our  patents  or  patent  applications.  An  unfavorable
outcome could require us to cease using the related technology or to attempt to license rights to it from the prevailing party.
Our business could be harmed if the prevailing party does not offer us a license on commercially reasonable terms. 

Furthermore,  because  of  the  substantial  amount  of  discovery  required  in  connection  with  intellectual  property
litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of
litigation.

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

Filing, prosecuting and defending patents on our drug candidates in all countries throughout the world would be
prohibitively  expensive,  and  our  intellectual  property  rights  in  some  countries  outside  the  United  States  can  be  less
extensive than those in the United States. For example, zunsemetinib is currently covered by patents and applications in the
United  States,  European  Union  and  other  foreign  markets.  While  we  have  issued  U.S.  patents  directed  to  ATI-1777  and
ATI-2138, we do not currently have any patents for such drug candidates in the European Union or other foreign markets;
rather, we have pending applications in the European Union and other foreign markets directed to each of ATI-1777 and
ATI-2138.

Many companies have encountered significant problems in protecting and defending intellectual property rights in
foreign jurisdictions. The legal systems of some countries do not favor the enforcement of patents and other intellectual
property protection, which could make it difficult for us to stop the infringement of our patents generally. Proceedings to
enforce our patent rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from
other  aspects  of  our  business,  could  put  our  patents  at  risk  of  being  invalidated  or  interpreted  narrowly  and  our  patent
applications at risk of not issuing and could provoke third parties to assert claims against us. We may not prevail in any
lawsuits that we initiate, and the damages or other remedies awarded, if any, may not be commercially meaningful. 

Many  countries,  including  European  Union  countries,  India,  Japan  and  China,  have  compulsory  licensing  laws
under  which  a  patent  owner  may  be  compelled  under  specified  circumstances  to  grant  licenses  to  third  parties.  In  those
countries, we may have limited remedies if patents are infringed or if we are compelled to grant a license to a third party,
which  could  materially  diminish  the  value  of  those  patents.  This  could  limit  our  ability  to  pursue  strategic  alternatives,
including  identifying  and  consummating  transactions  with  potential  third-party  partners,  to  further  develop,  obtain
marketing approval for and/or commercialize our drug candidates, and consequently our potential revenue opportunities.
Accordingly,  our  efforts  to  enforce  our  intellectual  property  rights  around  the  world  may  be  inadequate  to  obtain  a
significant commercial advantage from the intellectual property that we develop or license.

We may need to license intellectual property from third parties, and such licenses may not be available or may

not be available on commercially reasonable terms.

A  third  party  may  hold  intellectual  property,  including  patent  rights,  that  are  important  or  necessary  to  the
development  and/or  commercialization  of  our  drug  candidates.  It  may  be  necessary  for  us  or  our  potential  third-party
partners  to  use  the  patented  or  proprietary  technology  of  third  parties  to  further  develop  and/or  commercialize  our  drug
candidates.  If  we  or  our  potential  third-party  partners  are  not  able  to  obtain  a  license  from  these  third  parties  on
commercially reasonable terms, our business could be harmed, possibly materially, and even if we or they are able to, it
may result in the reduction of revenue we earn from such partner as a result of payment obligations to the licensor. 

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  success  depends  upon  our  ability  to  pursue  strategic  alternatives,  including  identifying  and  consummating
transactions with potential third-party partners, to develop, obtain marketing approval for and/or commercialize our drug
candidates and earn revenue from those partnerships, and for our proprietary technologies to be used without infringing the
proprietary  rights  of  third  parties.  There  is  considerable  intellectual  property  litigation  in  the  biotechnology  and
pharmaceutical  industries.  We  may  become  party  to,  or  threatened  with,  future  adversarial  proceedings  or  litigation
regarding  intellectual  property  rights  with  respect  to  our  drug  candidates  and  technologies,  including  interference  or
derivation  proceedings  before  the  USPTO.  Numerous  U.S.  and  foreign  issued  patents  and  pending  patent  applications
owned  by  third  parties  exist  in  the  fields  in  which  we  are  developing  our  drug  candidates.  Third  parties  may  assert
infringement claims against us based on existing patents or patents that may be granted in the future.

If we or our potential third-party partners are found to infringe a third party’s intellectual property rights, we or
such partners could be required to obtain a license from such third party to continue developing or commercializing our
drug candidates and technology. However, we or our potential third-party partners may not be able to obtain any required
license on commercially reasonable terms or at all. Even if we or our potential third-party partner were able to obtain a
license, it could be non-exclusive, thereby giving competitors access to the same technologies licensed to us or our partner.
Consequently, we or our potential third-party partner could be forced, including by court order, to cease developing or

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commercializing the infringing technology or drug candidate. In addition, we or our potential third-party partner could be
found liable for monetary damages, including treble damages and attorneys’ fees if we or such partner are found to have
willfully  infringed  a  patent.  A  finding  of  infringement  could  prevent  our  potential  third-party  partners  from
commercializing our drug candidates, if approved, or force such partners to cease some of their business operations. In the
event of a successful claim of infringement against us or our potential third-party partners, we or our potential third-party
partners may have to pay substantial damages, including treble damages and attorneys’ fees for willful infringement, pay
royalties,  redesign  our  infringing  drug  candidate  or  obtain  one  or  more  licenses  from  third  parties,  which  may  be
impossible  or  require  substantial  time  and  monetary  expenditure.  Claims  that  we  have  misappropriated  the  confidential
information or trade secrets of third parties could have a similar negative impact on our business.

We  may  be  subject  to  claims  by  third  parties  asserting  that  we,  our  employees  or  our  licensors  have

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

Many  of  our  employees  and  our  licensors’  employees  were  previously  employed  at  other  biotechnology  or
pharmaceutical companies. Although we and our licensors try to ensure that our employees and our licensors’ employees
do not use the proprietary information or know-how of others in their work for us, we or our licensors may be subject to
claims  that  these  employees,  our  licensors  or  we  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  it  is  our  policy  to  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 or our licensors 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 and our licensors are successful in prosecuting or
defending against such claims, litigation could result in substantial costs and be a distraction to management. 

Intellectual property litigation could cause us to spend substantial resources and distract our personnel from

their normal responsibilities.

Even  if  resolved  in  our  favor,  litigation  or  other  legal  proceedings  relating  to  intellectual  property  claims  may
cause  us  to  incur  significant  expenses  and  could  distract  our  technical  and  management  personnel  from  their  normal
responsibilities.  In  addition,  there  could  be  public  announcements  of  the  results  of  hearings,  motions  or  other  interim
proceedings or developments and if securities analysts or investors perceive these results to be negative, it could have a
substantial adverse effect on the price of our common stock. Such litigation or proceedings could substantially increase our
operating  losses  and  reduce  the  resources  available  for  development  activities.  We  may  not  have  sufficient  financial  or
other resources to conduct such litigation or proceedings adequately. Some of our competitors may be able to sustain the
costs of such litigation or proceedings more effectively than we can because of their greater financial resources. Some of
our  competitors  are  larger  than  we  are  and  have  substantially  greater  resources.  They  are,  therefore,  likely  to  be  able  to
sustain the costs of complex patent litigation longer than we could. Accordingly, despite our efforts, we may not be able to
prevent  third  parties  from  infringing  upon  or  misappropriating  our  intellectual  property.  Litigation  could  result  in
substantial  costs  and  diversion  of  management  resources,  which  could  harm  our  business.  In  addition,  the  uncertainties
associated with litigation could compromise our ability to compete in the marketplace, including compromising our ability
to  raise  the  funds  necessary  to  continue  our  clinical  trials,  continue  our  internal  research  programs,  or  pursue  strategic
alternatives,  including  identifying  and  consummating  transactions  with  third-party  partners,  to  further  develop,  obtain
marketing approval for and/or commercialize our drug candidates.

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

be harmed.

In  addition  to  seeking  and  maintaining  patents  for  our  drug  candidates,  we  also  rely  on  trade  secrets,  including
unpatented  know-how,  technology  and  other  proprietary  information,  to  maintain  our  competitive  position.  We  seek  to
protect our trade secrets, in part, by entering into non-disclosure and confidentiality agreements with parties who have

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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. Despite these efforts, any of these parties may breach the agreements 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 United States 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  disclosed  to  or  independently
developed by a competitor, our competitive position would be harmed. 

The  validity,  scope  and  enforceability  of  any  of  our  patents  that  cover  any  of  our  drug  candidates  can  be

challenged by competitors.

If  any  of  our  drug  candidates  advance  through  development  or  are  approved  by  the  FDA  or  foreign  regulatory
authority, one or more third parties may challenge the current patents, or patents that may issue in the future, within our
portfolio  covering  these  drug  candidates.  The  challenge  may  come  in  the  form  of  a  patent  office  proceeding,  such  as
an inter partes review challenging the validity of the patents, or a district court proceeding such as a paragraph IV litigation
arising out of the filing of an ANDA. Litigation or other proceedings to enforce or defend intellectual property rights are
often very complex in nature, may be expensive and time-consuming, may divert our management's attention from our core
business, and may result in unfavorable results that could limit our ability to prevent third parties from competing with our
drug candidates, if approved. Any such challenge could result in the invalidation of, or render unenforceable, some or all of
the relevant patent claims or a finding of non-infringement, which would harm our ability to pursue strategic alternatives,
including  identifying  and  consummating  transactions  with  third-party  partners,  to  further  develop,  obtain  marketing
approval for and/or commercialize our drug candidates, and earn revenue from such arrangements. In addition, any such
challenge on any divested product could harm our ability to earn revenue from the arrangements for such product. 

If we do not obtain protection under the Hatch-Waxman Act by extending the patent term and obtaining data

exclusivity for our drug candidates, our business may be materially harmed.

Our success will largely depend on our ability to obtain and maintain patent and other intellectual property in the
United  States  and  other  countries  with  respect  to  our  proprietary  technology,  drug  candidates  and  our  target
indications.    Our  issued  U.S.  patents  covering  zunsemetinib  expire  in  2034.  Our  issued  U.S.  patent  covering  ATI-1777
expires in 2038. Our issued U.S. patent directed to ATI-2138 expires in 2039. Given the amount of time required for the
development, testing and regulatory review of new drug candidates, patents protecting our drug candidates might expire
before or shortly after such candidates begin to be commercialized. We expect to seek extensions of patent terms in the
United States and, if available, in other countries where we are prosecuting patents.

Depending  upon  the  timing,  duration  and  specifics  of  FDA  marketing  approval  of  our  drug  candidates,  one  or
more of our U.S. patents may be eligible for limited patent term extension under The Drug Price Competition and Patent
Term Restoration Act of 1984, or the Hatch-Waxman Act, for a drug candidate. The Hatch-Waxman Act permits a patent
extension term of up to five years beyond the normal expiration of the patent as compensation for patent term lost during
development  and  the  FDA  regulatory  review  process,  which  is  limited  to  the  approved  indication  (or  any  additional
indications  approved  during  the  period  of  extension).  However,  the  total  patent  term  including  the  period  of  extension
cannot  exceed  14  years  from  the  product’s  approval  date.  Furthermore,  this  extension  is  limited  to  only  one  patent  per
regulatory review period that covers the approved product. However, the applicable authorities, including the FDA and the
USPTO in the United States, and any equivalent regulatory authority in other countries, may not agree with our assessment
of  whether  such  extensions  are  available,  and  may  refuse  to  grant  extensions  to  our  patents,  or  may  grant  more  limited
extensions than we request. We may not be granted an extension because of, for example, failing to apply within applicable
deadlines,  failing  to  apply  prior  to  expiration  of  relevant  patents  or  otherwise  failing  to  satisfy  applicable  requirements.
Moreover,  the  applicable  time  period  or  the  scope  of  patent  protection  afforded  could  be  less  than  we  request.  Similar
provisions are available in certain foreign countries, such as the European Union and Japan.

If  we  are  unable  to  extend  the  expiration  date  of  our  existing  patents  or  obtain  new  patents  with  longer  expiry

dates, our competitors may be able to take advantage of our investment in development and clinical trials by referencing

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our clinical and preclinical data to obtain approval of competing products following our patent expiration and launch their
product earlier than might otherwise be the case.

Any  trademarks  we  have  obtained  or  may  obtain  may  be  infringed  or  successfully  challenged,  resulting  in

harm to our business.

We expect to rely on trademarks as one means to distinguish our products, services or technologies from those of
our  competitors.  Once  we  select  new  trademarks  and  apply  to  register  them,  our  trademark  applications  may  not  be
approved. Third parties may oppose or attempt to cancel our trademark applications or trademarks, or otherwise challenge
our use of the trademarks. In such an event, we may need to negotiate a settlement agreement with such third party over the
use of our trademarks, which we may not be able to do on commercially reasonable terms, if at all. In the event that our
trademarks  are  successfully  challenged,  our  products,  services  or  technologies  may  need  to  be  rebranded,  which  could
result in loss of brand recognition and could require us to devote resources to advertising and marketing new brands. Our
competitors may infringe our trademarks and we may not have adequate resources to enforce our trademarks.

Outside  of  the  United  States  we  cannot  be  certain  that  any  country’s  patent  or  trademark  office  will  not
implement  new  rules  that  could  seriously  affect  how  we  draft,  file,  prosecute  and  maintain  patents,  trademarks  and
patent and trademark applications.

We cannot be certain that the patent or trademark offices of countries outside the United States will not implement
new rules that increase costs for drafting, filing, prosecuting and maintaining patents, trademarks and patent and trademark
applications or that any such new rules will not restrict our ability to file for patent or trademark protection. For example,
we may elect not to seek patent protection in some jurisdictions or for some drug candidates in order to save costs. We may
be forced to abandon or return the rights to specific patents due to a lack of financial resources.

For  example,  following  the  result  of  a  referendum  in  2016,  the  United  Kingdom  left  the  European  Union  on
January  31,  2020,  commonly  referred  to  as  Brexit.  The  impact  of  the  withdrawal  of  the  United  Kingdom  from  the
European  Union  will  not  be  known  for  some  time,  which  could  lead  to  a  period  of  uncertainty  relating  to  our  ability  to
obtain and maintain patents and trademarks in the United Kingdom. In 2012, the European Patent Package, or EU Patent
Package, regulations were passed with the goal of providing for a single pan-European Unitary Patent, and a new European
Unified Patent Court, or UPC, for litigation of European patents, which was implemented in 2023.  All European patents,
including those issued prior to ratification, would by default automatically fall under the jurisdiction of the UPC and allow
for the possibility of obtaining pan-European injunctions, unless the patent holder “opts out” of the UPC on a patent-by-
patent basis during an initial seven-year period. Owners of traditional European patent applications who receive notice of
grant after the EU Patent Package ratification can either accept a Unitary Patent or validate the patent nationally and file an
opt-out demand. The EU Patent Package may increase the uncertainties and costs surrounding the enforcement or defense
of our issued European patents and pending applications. The full impact on future European patent filing strategy and the
enforcement or defense of our issued European patents in member states and/or the UPC is not known.

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

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

● we, our licensors or any potential third-party partners might not have been the first to make the inventions

covered by the issued patents or pending patent applications that we own;

● we, our licensors or any potential third-party partners might not have been the first to file patent applications

covering certain of our inventions;

● others  may  independently  develop  similar  or  alternative  technologies  or  duplicate  any  of  our  technologies

without infringing our intellectual property rights;

● it is possible that our pending patent applications will not lead to issued patents;
● issued patents that we own or exclusively license may not provide us with any competitive advantages, or

may be held invalid or unenforceable as a result of legal challenges;

● our competitors might conduct research and development activities in the United States and other countries
that provide a safe harbor from patent infringement claims for certain research and development activities,

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as well as in countries where we do not have patent rights, and then use the information learned from such
activities to develop competitive products for sale in major commercial markets; and

● we may develop additional proprietary technologies that are not patentable.

Risks Related to Regulatory Approval of Our Drug Candidates and Other Legal Compliance Matters

If  our  potential  third-party  partners  are  not  able  to  obtain,  or  if  there  are  delays  in  obtaining,  required
regulatory approvals, our drug candidates will not be able to be commercialized, and our ability to earn revenue from
arrangements with such third-party partners will be materially impaired.

Our drug candidates and the activities associated with their development and commercialization, including their
design, testing, manufacture, safety, efficacy, recordkeeping, labeling, storage, approval, advertising, promotion, sale and
distribution, are subject to comprehensive regulation by the FDA, other regulatory agencies in the United States and similar
regulatory authorities outside the United States. Failure to obtain marketing approval for a drug candidate will prevent our
potential  third-party  partners  from  commercializing  the  drug  candidate.  We  have  only  limited  experience  in  filing  and
supporting the applications necessary to gain marketing approvals. Securing marketing approval requires the submission of
extensive preclinical and clinical data and supporting information to regulatory authorities for each therapeutic indication
to  establish  the  drug  candidate’s  safety  and  efficacy.  Securing  marketing  approval  also  requires  the  submission  of
information  about  the  drug  manufacturing  process  to,  and  inspection  of  manufacturing  facilities  by,  the  regulatory
authorities. Our drug candidates may not be effective, may be only moderately effective or may prove to have undesirable
or  unintended  side  effects,  toxicities  or  other  characteristics  that  may  preclude  our  potential  third-party  partners  from
obtaining marketing approval or prevent or limit commercial use. If any of our drug candidates receive marketing approval,
the accompanying label may limit the approved use of our product in this way, which could limit sales of the product. 

The process of obtaining marketing approvals, both in the United States and abroad, is expensive and may take
many years if additional clinical trials are required, if approval is obtained at all, and can vary substantially based upon a
variety  of  factors,  including  the  type,  complexity  and  novelty  of  the  drug  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  drug  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  is  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  drug  candidate.  Any  marketing  approval  our  potential  third-party  partners  ultimately
obtain  may  be  limited  or  subject  to  restrictions  or  post-approval  commitments  that  render  the  approved  drug  not
commercially viable.

If our potential third-party partners experience delays in obtaining approval or if they fail to obtain approval of our
drug candidates, the commercial prospects for our drug candidates may be harmed and our ability to earn revenue from
arrangements with such third-party partners will be materially impaired.

Failure  to  obtain  marketing  approval  in  international  jurisdictions  would  prevent  our  drug  candidates  from

being marketed abroad.

In order to market and sell our drugs in the European Union and any other jurisdictions outside the United States,
our  potential  third-party  partners  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 substantially from that required to obtain FDA approval. The regulatory approval
process outside the United States generally includes all of the risks associated with obtaining FDA approval. In addition, in
many countries outside the United States, it is required that the drug be approved for reimbursement before the drug can be
approved for sale in that country. Our potential third-party partners may not obtain approvals from regulatory authorities
outside  the  United  States  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 United States does not
ensure  approval  by  regulatory  authorities  in  other  countries  or  jurisdictions  or  by  the  FDA.  However,  failure  to  obtain
approval  in  one  jurisdiction  may  impact  our  potential  third-party  partners’  ability  to  obtain  approval  elsewhere.  Our
potential third-party partners may not be able to file for marketing approvals and may not receive necessary approvals to
commercialize our drug candidates in any market.

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A  variety  of  risks  associated  with  marketing  our  drug  candidates  by  our  potential  third-party  partners

internationally could harm our business.

If our drug candidates, if approved, are marketed internationally by our potential third-party partners, our potential

third-party partners would be subject to additional risks related to operating in foreign countries, including:

● differing regulatory requirements in foreign countries;
● the potential for so-called parallel importing, which is what happens when a local seller, faced with high or
higher local prices, opts to import goods from a foreign market (with low or lower prices) rather than buying
them locally;

● unexpected changes in tariffs, trade barriers, price and exchange controls and other regulatory requirements;
● economic weakness, including inflation, or political instability in particular foreign economies and markets;
● foreign reimbursement, pricing and insurance regimes;
● compliance with tax, employment, immigration and labor laws for employees living or traveling abroad;
● foreign taxes, including withholding of payroll taxes;
● foreign currency fluctuations, which could result in increased operating expenses and reduced revenue, and

other obligations incident to doing business in another country;

● difficulties staffing and managing foreign operations;
● workforce uncertainty in countries where labor unrest is more common than in the United States;
● potential  liability  under  the  U.S.  Foreign  Corrupt  Practices  Act  of  1977,  as  amended,  or  the  FCPA,  or

comparable foreign regulations;

● challenges enforcing contractual and intellectual property rights, especially in those foreign countries that do

not respect and protect intellectual property rights to the same extent as the United States;

● production shortages resulting from any events affecting raw material supply or manufacturing capabilities

abroad;

● logistical challenges resulting from distributing our drug candidates to foreign countries; and
● business interruptions resulting from geo-political actions, including war and terrorism.

These and other risks associated with international operations may compromise our ability to earn revenue from

arrangements with potential third-party partners for our drug candidates.

Any drug candidate for which our potential third-party partners obtain marketing approval could be subject to
post-marketing  restrictions  or  recall  or  withdrawal  from  the  market,  and  our  potential  third-party  partners  may  be
subject to penalties if they fail to comply with regulatory requirements or if they experience unanticipated problems with
our drug candidates, when and if any of them are approved.

Any  drug  candidate  for  which  our  potential  third-party  partners  obtain  marketing  approval,  along  with  the
manufacturing  processes,  post-approval  clinical  data,  labeling,  advertising  and  promotional  activities  for  such  drug
candidate,  will  be  subject  to  continual  requirements  of  and  review  by  the  FDA  and  other  regulatory  authorities.  These
requirements  include  submissions  of  safety  and  other  post-marketing  information  and  reports,  registration  and  listing
requirements,  cGMP  requirements  relating  to  manufacturing,  quality  control,  quality  assurance  and  corresponding
maintenance  of  records  and  documents,  requirements  regarding  the  distribution  of  samples  to  physicians  and
recordkeeping. Even if marketing approval of a drug candidate is granted, the approval may be subject to limitations on the
indicated uses for which the drug candidate may be marketed or to the conditions of approval, including the requirement to
implement  a  risk  evaluation  and  mitigation  strategy.  If  any  of  our  drug  candidates  receives  marketing  approval,  the
accompanying label may limit the approved use of our drug, which could limit sales of the drug by our potential third-party
partners.

The  FDA  may  also  impose  requirements  for  costly  post-marketing  studies  or  clinical  trials  and  surveillance  to
monitor the safety or efficacy of the drug. The FDA closely regulates the post-approval marketing and promotion of drugs
to  ensure  drugs  are  marketed  only  for  the  approved  indications  and  in  accordance  with  the  provisions  of  the  approved
labeling.  The  FDA  imposes  stringent  restrictions  on  manufacturers’  communications  regarding  off-label  use  and  if  our
potential third-party partners do not market our drugs for their approved indications, they may be subject to enforcement
action for off-label marketing. Physicians, on the other hand, may prescribe products for off-label uses. Although the FDA
and other regulatory agencies do not regulate a physician’s choice of drug treatment made in the physician’s independent
medical judgment, they do restrict promotional communications from companies or their sales force with respect to off-

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label uses of products for which marketing clearance has not been issued. However, companies may share truthful and not
misleading  information  that  is  otherwise  consistent  with  the  product’s  FDA  approved  labeling.  Violations  of  the  FDCA
relating to the promotion of prescription drugs may lead to investigations alleging violations of federal and state health care
fraud and abuse laws, as well as state consumer protection laws.

In  addition,  later  discovery  of  previously  unknown  adverse  events  or  other  problems  with  our  drugs,
manufacturers  or  manufacturing  processes,  or  failure  to  comply  with  regulatory  requirements,  may  have  negative
consequences, including:

● restrictions on such drugs, manufacturers or manufacturing processes;
● restrictions on the labeling or marketing of a drug;
● restrictions on drug distribution or use;
● requirements to conduct post-marketing studies or clinical trials;
● warning letters;
● recall or withdrawal of the drugs from the market;
● refusal to approve pending applications or supplements to approved applications;
● clinical holds;
● fines, restitution or disgorgement of profits or revenue;
● suspension or withdrawal of marketing approvals;
● refusal to permit the import or export of our drugs;
● drug seizure; or
● injunctions or the imposition of civil or criminal penalties.

Non-compliance with the European Union’s requirements regarding safety monitoring or pharmacovigilance, and
with requirements related to the development of drugs for the pediatric population, can also result in significant financial
penalties.  Similarly,  failure  to  comply  with  the  European  Union’s  requirements  regarding  the  protection  of  personal
information can also lead to significant penalties and sanctions. These and other risks associated with the failure by our
potential  third-party  partners  to  comply  with  regulatory  requirements  may  compromise  our  ability  to  earn  revenue  from
arrangements with such third-party partners for our drug candidates.

Our  potential  third-party  partners’  relationships  with  third-party  payors,  health  care  professionals  and
customers in the United States and elsewhere may be subject, directly or indirectly, to applicable anti-kickback, fraud
and abuse, false claims, physician payment transparency, health information privacy and security and other health care
laws and regulations, and any failure to comply with such laws and regulations could have a material adverse effect on
our ability to earn revenue from arrangements with such third-party partners for our drug candidates.

Health care providers, physicians and third-party payors in the United States and elsewhere will play a primary
role in the recommendation and prescription of any of our drug candidates for which marketing approval is obtained. Our
potential third-party partners’ arrangements with third-party payors, health care professionals and customers may expose
them to broadly applicable fraud and abuse and other health care laws and regulations, including, without limitation, the
federal  Anti-Kickback  Statute  and  the  federal  civil  False  Claims  Act,  that  may  constrain  the  business  or  financial
arrangements  and  relationships  through  which  they  sell,  market  and  distribute  any  drug  candidates  for  which  marketing
approval is obtained. In addition, we and our potential third-party partners may be subject to transparency laws and patient
privacy regulation by the federal government and by the U.S. states and foreign jurisdictions in which we or they conduct
business.  The  applicable  federal,  state  and  foreign  health  care  laws  and  regulations  that  may  affect  our  or  our  potential
third-party partners’ ability to operate include the following:

● the federal Anti-Kickback Statute, which prohibits, among other things, persons and entities from knowingly
and  willfully  soliciting,  offering,  receiving  or  providing  remuneration,  directly  or  indirectly,  in  cash  or  in
kind, to induce or reward, or in return for, 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 health care
programs  such  as  Medicare  and  Medicaid.  Further,  several  courts  have  interpreted  the  statute’s  intent
requirement to mean that if any one purpose of an arrangement involving remuneration is to induce referrals
of federal health care covered business, the Anti-Kickback Statute has been violated. The intent standard was
further  amended  by  the  Affordable  Care  Act,  to  a  stricter  standard  such  that  a  person  or  entity  no  longer
needs to have actual knowledge of the statute or specific intent to violate it in order to have committed a

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violation.    Moreover,  the  government  may  assert  that  a  claim  including  items  or  services  resulting  from  a
violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the False
Claims Act;

● federal civil and criminal false claims laws, including, without limitation, the federal civil False Claims Act
(that can be enforced through civil whistleblower or qui tam actions), and the civil monetary penalties law,
which  impose  criminal  and  civil  penalties,  against  individuals  or  entities  for  knowingly  presenting,  or
causing to be presented, to the federal government, including the Medicare and Medicaid programs, 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;

● federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which imposes criminal and
civil  liability  for,  among  other  things,  executing  a  scheme  to  defraud  any  health  care  benefit  program  or
making false statements relating to health care matters. Similar to the federal Anti-Kickback Statute, a person
or  entity  does  not  need  to  have  actual  knowledge  of  the  statute  or  specific  intent  to  violate  it  to  have
committed a violation;

● HIPAA,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health  Act,  or
HITECH,  and  their  respective  implementing  regulations,  which  impose  obligations  on  covered  health  care
providers,  health  plans,  and  health  care  clearinghouses,  as  well  as  their  business  associates  that  create,
receive, maintain or transmit individually identifiable health information for or on behalf of a covered entity
and  their  subcontractors  that  use,  disclose,  access,  or  otherwise  process  protected  health  information,  with
respect to safeguarding the privacy, security and transmission of individually identifiable health information;
● the  federal  Open  Payments  program,  created  under  Section  6002  of  the  Affordable  Care  Act  (commonly
known as the Physician Payments Sunshine Act) and its implementing regulations, which requires specified
manufacturers  of  drugs,  devices,  biologics  or  medical  supplies  for  which  payment  is  available  under
Medicare, Medicaid or the Children’s Health Insurance Program, with specific exceptions, to report annually
to  the  Centers  for  Medicare  &  Medicaid  Services,  or  CMS,  information  related  to  “payments  or  other
transfers of value” made to physicians, which is defined to include doctors, dentists, optometrists, podiatrists
and chiropractors, other health care professionals (such as physician assistants and nurse practitioners), and
teaching  hospitals,  and  for  applicable  manufacturers  to  report  annually  to  CMS  information  regarding
ownership and investment interests held by physicians and their immediate family members; and

● analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws, which
may apply to sales or marketing arrangements and claims involving health care items or services reimbursed
by  non-governmental  third-party  payors,  including  private  insurers;  state  and  foreign  laws  that  require
pharmaceutical  companies  to  comply  with  the  pharmaceutical  industry’s  voluntary  compliance  guidelines
and the relevant compliance guidance promulgated by the federal government or otherwise restrict payments
that may be made to health care providers; state, local and foreign laws that require drug manufacturers to
report  information  related  to  payments  and  other  transfers  of  value  to  physicians  and  other  health  care
providers or marketing expenditures; state laws that require drug manufacturers to report pricing information
regarding certain drugs; and/or that require registration of certain employees engaged in marketing activities
in the location; 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.

Efforts  to  ensure  that  our  or  our  potential  third-party  partners’  business  arrangements  with  third  parties  will
comply  with  applicable  health  care  laws  and  regulations  may  involve  substantial  costs.  It  is  possible  that  governmental
authorities  will  conclude  that  our  or  our  potential  third-party  partners’  business  practices,  including  relationships  with
physicians and other health care providers, some of whom may recommend, purchase and/or prescribe our drug candidates,
if approved, may not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or
other health care laws and regulations. By way of example, some of our consulting arrangements with physicians may not
meet all of the criteria of the personal services safe harbor under the federal Anti-Kickback Statute. Accordingly, they may
not  qualify  for  safe  harbor  protection  from  government  prosecution.  A  business  arrangement  that  does  not  substantially
comply  with  a  safe  harbor,  however,  is  not  necessarily  illegal  under  the  Anti-Kickback  Statute,  but  may  be  subject  to
additional scrutiny by the government.

If our or our potential third-party partners’ operations are found to be in violation of any of these laws or any other
governmental  regulations  that  may  apply  to  us  or  them,  we  or  our  potential  third-party  partners  may  be  subject  to
significant  civil,  criminal  and  administrative  penalties,  including,  without  limitation,  damages,  fines,  disgorgement,
imprisonment, exclusion from participation in government health care programs, such as Medicare and Medicaid,

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additional reporting requirements and oversight if we or they become subject to a corporate integrity agreement or similar
agreement  to  resolve  allegations  of  non-compliance  with  these  laws  and  the  curtailment  or  restructuring  of  our  or  their
operations, which could have a material adverse effect on our ability to earn revenue from arrangements with such third-
party  partners  for  our  drug  candidates.  If  any  physician  or  other  health  care  provider  or  entity  with  whom  we  or  our
potential third-party partners expect to do business is found not to be in compliance with applicable laws, it may be subject
to significant criminal, civil or administrative sanctions, including exclusions from participation in government health care
programs, which could also materially affect our ability to earn revenue from arrangements with such third-party partners
for our drug candidates.

Recently  enacted  and  future  legislation  may  increase  the  difficulty  and  cost  for  our  potential  third-party
partners to obtain marketing approval of our drug candidates and commercialize our drug candidates, if approved, and
affect the prices our potential third-party partners may obtain.

In  the  United  States,  and  some  foreign  jurisdictions,  there  have  been  a  number  of  legislative  and  regulatory
changes and proposed changes regarding the health care system that could prevent or delay marketing approval of our drug
candidates, restrict or regulate post-approval activities and affect our potential third-party partners’ ability to profitably sell
any of our drug candidates for which our potential third-party partners obtain marketing approval, and consequently affect
our ability to earn revenue from arrangements with such third-party partners for our drug candidates.

Among  policy  makers  and  payors  in  the  United  States  and  elsewhere,  there  is  significant  interest  in  promoting
changes in health care systems with the stated goals of containing health care costs, improving quality and/or expanding
access.  In  the  United  States,  the  pharmaceutical  industry  has  been  a  particular  focus  of  these  efforts  and  has  been
significantly  affected  by  major  legislative  initiatives.  The  Affordable  Care  Act,  which  was  signed  into  law  in  2010,  is  a
sweeping  law  intended  to  broaden  access  to  health  insurance,  reduce  or  constrain  the  growth  of  health  care  spending,
enhance  remedies  against  fraud  and  abuse,  add  new  transparency  requirements  for  the  health  care  and  health  insurance
industries, impose new taxes and fees on the health industry and impose additional health policy reforms.

Among  the  provisions  of  the  Affordable  Care  Act  of  importance  to  commercial  products  are  the  following:
expanded  and  increased  industry  rebates  for  drugs  covered  under  Medicaid  programs;  addressed  a  new  methodology  by
which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled,
infused,  instilled,  implanted  or  injected;  extended  the  rebate  program  to  individuals  enrolled  in  Medicaid  managed  care
organizations; established annual fees and taxes on manufacturers of certain branded prescription drugs; made changes to
the coverage requirements under the Medicare prescription drug benefit; and established a new Medicare Part D coverage
gap discount program, in which manufacturers, as a condition for their outpatient drugs to be covered under Medicare Part
D, must agree to offer 70% point-of-sale discounts off negotiated prices of applicable brand drugs to eligible beneficiaries
during their coverage gap period.  Moreover, the Affordable Care Act provided incentives to programs that increase the
federal  government’s  comparative  effectiveness  research  and  implemented  payment  system  reforms  including  a  national
pilot  program  on  payment  bundling  meant  to  encourage  hospitals,  physicians  and  other  providers  to  improve  the
coordination, quality and efficiency of certain health care services.

There have been executive branch, judicial and Congressional challenges to certain aspects of the Affordable Care
Act. While Congress has not passed comprehensive repeal legislation, several bills affecting the implementation of certain
taxes  under  the  Affordable  Care  Act  have  been  signed  into  law.  On  June  17,  2021  the  U.S.  Supreme  Court  dismissed  a
challenge  on  procedural  grounds  that  argued  the  Affordable  Care  Act  is  unconstitutional  in  its  entirety  because  the
“individual mandate” was repealed by Congress. Prior to the U.S. Supreme Court ruling, on January 28, 2021, President
Biden  issued  an  executive  order  that  initiated  a  special  enrollment  period  for  purposes  of  obtaining  health  insurance
coverage through the Affordable Care Act marketplace. The executive order also instructed certain governmental agencies
to  review  and  reconsider  their  existing  policies  and  rules  that  limit  access  to  healthcare,  including  among  others,
reexamining  Medicaid  demonstration  projects  and  waiver  programs  that  include  work  requirements,  and  policies  that
create unnecessary barriers to obtaining access to health insurance coverage through Medicaid or the Affordable Care Act.
Further,  on  August  16,  2022,  President  Biden  signed  the  IRA  into  law,  which  among  other  things,  extends  enhanced
subsidies  for  individuals  purchasing  health  insurance  coverage  in  Affordable  Care  Act  marketplaces  through  plan  year
2025.  The  IRA  also  eliminates  the  “donut  hole”  under  the  Medicare  Part  D  program  beginning  in  2025  by  significantly
lowering the beneficiary maximum out-of-pocket cost and through a newly established manufacturer discount program. It
is possible that the Affordable Care Act will be subject to judicial or Congressional challenges in the future. It is unclear
how  such  challenges  and  any  additional  health  care  reform  measures  of  the  Biden  administration  will  impact  the
Affordable Care Act and our business.

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In addition, other legislative changes have been proposed and adopted since the Affordable Care Act was enacted.
These  changes  included  aggregate  reductions  to  Medicare  payments  to  providers  of  2%  per  fiscal  year  that  became
effective  on  April  1,  2013  and,  due  to  subsequent  legislative  amendments  to  the  statute,  including  the  BBA  and  the
Infrastructure Investment and Jobs Act, will stay in effect through 2032 unless additional Congressional action is taken.
The  American  Taxpayer  Relief  Act  of  2012,  which  was  signed  into  law  in  January  2013,  among  other  things,  further
reduced  Medicare  payments  to  several  providers,  and  increased  the  statute  of  limitations  period  for  the  government  to
recover overpayments to providers from three to five years. Any similar new laws may result in additional reductions in
Medicare and other health care funding, which could have a material adverse effect on our ability to earn revenue from
arrangements with our potential third-party partners for our drug candidates.

We expect that the Affordable Care Act, as well as other health care reform measures that may be adopted in the
future, may result in more rigorous coverage criteria and in additional downward pressure on the price that our potential
third-party  partners  receive  for  any  approved  drug  candidate.  Any  reduction  in  reimbursement  from  Medicare  or  other
government  programs  may  result  in  a  similar  reduction  in  payments  from  private  payors.  The  implementation  of  cost
containment  measures  or  other  health  care  reforms  may  prevent  our  potential  third-party  partners  from  being  able  to
generate  revenue,  attain  profitability,  or  commercialize  our  drug  candidates,  if  approved,  which  in  turn  may  impact  our
ability to earn revenue from arrangements with such third-party partners for our drug candidates.

Legislative and regulatory proposals have been made to expand post-approval requirements and restrict sales and
promotional  activities  for  drugs.  In  addition,  there  has  been  heightened  governmental  scrutiny  in  the  United  States  of
pharmaceutical pricing practices in light of the rising cost of prescription drugs and biologics. Such scrutiny has resulted in
several  recent  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,  and  reform  government  program  reimbursement  methodologies  for  drugs.  In  July  2021,  the  Biden
administration released an executive order, “Promoting Competition in the American Economy,” with multiple provisions
aimed at prescription drugs. In response to Biden’s executive order, on September 9, 2021, U.S. Department of Health and
Human  Services,  or  HHS,  released  a  Comprehensive  Plan  for  Addressing  High  Drug  Prices  that  outlines  principles  for
drug pricing reform and sets out a variety of potential legislative policies that Congress could pursue as well as potential
administrative actions HHS can take to advance these principles. In addition, the IRA, among other things, (1) directs HHS
to negotiate the price of certain single-source drugs and biologics covered under Medicare and (2) imposes rebates under
Medicare  Part  B  and  Medicare  Part  D  to  penalize  price  increases  that  outpace  inflation.  These  provisions  take  effect
progressively starting in fiscal year 2023, although they may be subject to legal challenges. It is currently unclear how the
IRA  will  be  implemented  but  is  likely  to  have  a  significant  impact  on  the  pharmaceutical  industry.  Further,  the  Biden
administration released an additional executive order on October 14, 2022, directing HHS to submit a report on how the
Center  for  Medicare  and  Medicaid  Innovation  can  be  further  leveraged  to  test  new  models  for  lowering  drug  costs  for
Medicare  and  Medicaid  beneficiaries.  It  is  unclear  whether  this  executive  order  or  similar  policy  initiatives  will  be
implemented in the future. On December 7, 2023, the Biden administration announced an initiative to control the price of
prescription  drugs  through  the  use  of  march-in  rights  under  the  Bayh-Dole  Act.  On  December  8,  2023,  the  National
Institute of Standards and Technology published for comment a Draft Interagency Guidance Framework for Considering
the Exercise of March-In Rights which for the first time includes the price of a product as one factor an agency can use
when deciding to exercise march-in rights. While march-in rights have not previously been exercised, it is uncertain if that
will continue under the new framework. It is unclear whether these or similar policy initiatives will be implemented in the
future. The effect of reducing prices and reimbursement for certain of our drug candidates, if approved, could significantly
impact  our  business  and  consolidated  results  of  operations.  In  addition,  the  IRA  may  meaningfully  influence  our  and
pharmaceutical industry business strategies. In particular, it may reduce the attractiveness of investment in small molecule
and biologic innovation.

At  the  state  level,  legislatures  have  become  increasingly  active  in  passing  legislation  and  implementing
regulations  designed  to  control  pharmaceutical  and  biological  product  pricing,  including  price  or  patient  reimbursement
constraints, discounts, restrictions on certain drug access and marketing cost disclosure and transparency measures, and, in
some cases, designed to encourage importation from other countries and bulk purchasing. For example, on January 5, 2024,
the  FDA  approved  Florida’s  proposal  to  import  certain  drugs  from  Canada  for  specific  state  healthcare  programs.  It  is
unclear  if  and  how  this  program  will  be  implemented  and  whether  it  will  be  subject  challenges  in  the  United  States  or
Canada. Other states have also submitted proposals that are pending review by the FDA. Any such approved importation
plans, if implemented, may result in lower drug prices for products covered by those programs. We cannot be sure whether
additional legislative changes will be enacted, or whether the FDA regulations, guidance or interpretations will be changed,

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or what the impact of such changes on obtaining marketing approvals for our drug candidates, if any, may be. In addition,
increased  scrutiny  by  the  U.S.  Congress  of  the  FDA’s  approval  process  may  significantly  delay  or  prevent  marketing
approval,  as  well  as  subject  our  potential  third-party  partners  to  more  stringent  drug  labeling  and  post-marketing  testing
and other requirements. These risks may compromise our ability to earn revenue from arrangements with such third-party
partners for our drug candidates.

Governments  outside  the  United  States  tend  to  impose  strict  price  controls,  which  may  adversely  affect  our

revenue.

In some countries, particularly the countries of the European Union, the pricing of prescription pharmaceuticals is
subject  to  governmental  control.  In  these  countries,  pricing  negotiations  with  governmental  authorities  can  take
considerable  time  after  the  receipt  of  marketing  approval  for  a  drug.  To  obtain  coverage  and  reimbursement  or  pricing
approval in some countries, our potential third-party partners may be required to conduct a clinical trial that compares the
cost-effectiveness  of  our  drug  candidate  to  other  available  procedures.  If  reimbursement  of  our  drug  candidates  is
unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, our potential third-party partners may
not able to generate revenue, which in turn may adversely affect our ability to earn revenue from arrangements with such
third-party partners for our drug candidates. 

If we fail to comply with environmental, health and safety laws and regulations, we could become subject to

fines or penalties or incur costs that could harm our business.

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

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

In addition, we may incur substantial costs in order to comply with current or future environmental, health and
safety laws and regulations. These current or future laws and regulations may impair our development or manufacturing
efforts.  Our  failure  to  comply  with  these  laws  and  regulations  also  may  result  in  substantial  fines,  penalties  or  other
sanctions.

We are subject to stringent and evolving U.S. and foreign laws, regulations, and rules, contractual obligations,
industry standards, policies and other obligations related to data privacy and security.  Our actual or perceived failure to
comply with such obligations could lead to regulatory investigations or actions; litigation (including class claims) and
mass  arbitration  demands;  fines  and  penalties;  disruptions  of  our  business  operations;  reputational  harm;  loss  of
revenue or profits; and other adverse business consequences.

In  the  ordinary  course  of  business,  we  collect,  receive,  store,  process,  generate,  use,  transfer,  disclose,  make
accessible,  protect,  secure,  dispose  of,  transmit,  and  share  (collectively,  process)  personal  data  and  other  sensitive
information, including proprietary and confidential business data, trade secrets, intellectual property, personnel data, data
from participants in our clinical trials, and other sensitive third-party data (collectively, sensitive data). Our data processing
activities  subject  us  to  numerous  data  privacy  and  security  obligations,  such  as  various  laws,  regulations,  guidance,
industry  standards,  external  and  internal  privacy  and  security  policies,  contractual  requirements,  and  other  obligations
relating to data privacy and security.

In the United States, federal, state, and local governments have enacted numerous data privacy and security laws,
including  data  breach  notification  laws,  personal  data  privacy  laws,  consumer  protection  laws  (e.g.,  Section  5  of  the
Federal  Trade  Commission  Act),  and  other  similar  laws  (e.g.,  wiretapping  laws).  In  the  past  few  years,  numerous  U.S.
states—

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including California, Virginia, Colorado, Connecticut, and Utah—have enacted comprehensive privacy laws that impose
certain  obligations  on  covered  businesses,  including  providing  specific  disclosures  in  privacy  notices  and  affording
residents  with  certain  rights  concerning  their  personal  data.  As  applicable,  such  rights  may  include  the  right  to  access,
correct,  or  delete  certain  personal  data,  and  to  opt-out  of  certain  data  processing  activities,  such  as  targeted  advertising,
profiling, and automated decision-making. The exercise of these rights may impact our business operations. Certain states
also impose stricter requirements for processing certain personal data, including sensitive information, such as conducting
data privacy impact assessments. These state laws allow for statutory fines for noncompliance. For example, the California
Consumer  Privacy  Act  of  2018,  as  amended  by  the  California  Privacy  Rights  Act  of  2020  (“CPRA”)  (collectively,
“CCPA”), applies to personal data of consumers, business representatives, and employees who are California residents, and
requires  businesses  to  provide  specific  disclosures  in  privacy  notices  and  honor  requests  of  such  individuals  to  exercise
certain privacy rights. The CCPA provides for fines of up to $7,500 per intentional violation and allows private litigants
affected  by  certain  data  breaches  to  recover  significant  statutory  damages.  Although  the  CCPA  exempts  some  data
processed in the context of clinical trials, the CCPA increases compliance costs and potential liability with respect to other
personal data we maintain about California residents. Similar laws are being considered in several other states, as well as at
the federal and local levels, and we expect more states to pass similar laws in the future. While these states, like the CCPA,
also exempt some data processed in the context of clinical trials, these developments may further complicate compliance
efforts, and increase legal risk and compliance costs for us and the third parties upon whom we rely.

In addition to “comprehensive” state privacy laws like CCPA, we are or may become subject to new state laws
governing  the  privacy  of  consumer  health  data.  For  example,  Washington’s  My  Health  My  Data  Act  broadly  defines
consumer health data, places restrictions on processing consumer health data (including imposing stringent requirements
for consents), provides consumers certain rights with respect to their health data, and creates a private right of action to
allow individuals to sue for violations of the law. Other states are considering and may adopt similar laws.  

Outside  the  United  States,  an  increasing  number  of  laws,  regulations,  and  industry  standards  may  govern  data
privacy  and  security.    For  example,  the  European  Union’s  General  Data  Protection  Regulation  (“EU  GDPR”)  and  the
United  Kingdom’s  GDPR  (“UK  GDPR”)  impose  strict  requirements  for  processing  personal  data.  For  example,  under
GDPR, companies may face temporary or definitive bans on data processing and other corrective actions; fines of up to 20
million Euros under the EU GDPR, 17.5 million pounds sterling under the UK GDPR or, in each case, 4% of annual global
revenue, whichever is greater; or private litigation related to processing of personal data brought by classes of data subjects
or consumer protection organizations authorized at law to represent their interests.

In addition, we may be unable to transfer personal data from Europe and other jurisdictions to the United States or
other  countries  due  to  data  localization  requirements  or  limitations  on  cross-border  data  flows.    Europe  and  other
jurisdictions have enacted laws requiring data to be localized or limiting the transfer of personal data to other countries.  In
particular, the European Economic Area (EEA) and the United Kingdom (UK) have significantly restricted the transfer of
personal  data  to  the  United  States  and  other  countries  whose  privacy  laws  it  generally  believes  are  inadequate.    Other
jurisdictions  may  adopt  similarly  stringent  interpretations  of  their  data  localization  and  cross-border  data  transfer  laws.
 Although there are currently various mechanisms that may be used to transfer personal data from the EEA and UK to the
United States in compliance with law, such as the EEA’s standard contractual clauses, the UK’s International Data Transfer
Agreement  /  Addendum,  and  the  EU-U.S.  Data  Privacy  Framework  and  the  UK  extension  thereto  (which  allows  for
transfers  to  relevant  U.S.-based  organizations  who  self-certify  compliance  and  participate  in  the  Framework),  these
mechanisms  are  subject  to  legal  challenges,  and  there  is  no  assurance  that  we  can  satisfy  or  rely  on  these  measures  to
lawfully transfer personal data to the United States.  If there is no lawful manner for us to transfer personal data from the
EEA,  the  UK,  or  other  jurisdictions  to  the  United  States,  or  if  the  requirements  for  a  legally-compliant  transfer  are  too
onerous, we could face significant adverse consequences, including the interruption or degradation of our operations, the
need to relocate part of or all of our data processing activities to other jurisdictions (such as Europe) at significant expense,
increased  exposure  to  regulatory  actions,  substantial  fines  and  penalties,  the  inability  to  transfer  data  and  work  with
partners, vendors and other third parties, and injunctions against our processing or transferring of personal data necessary
to operate our business.  Additionally, companies that transfer personal data out of the EEA and UK to other jurisdictions,
particularly  to  the  United  States,  are  subject  to  increased  scrutiny  from  regulators,  individual  litigants,  and  activities
groups.  Some European regulators have ordered certain companies to suspend or permanently cease certain transfers of
personal data out of Europe for allegedly violating the GDPR’s cross-border data transfer limitations.  

In  addition  to  data  privacy  and  security  laws,  we  are  contractually  subject  to  industry  standards  adopted  by
industry  groups  and  may  become  subject  to  such  obligations  in  the  future.    We  are  also  bound  by  other  contractual
obligations related to data privacy and security, and our efforts to comply with such obligations may not be successful.

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We publish privacy policies and make other statements regarding data privacy and security.  If these policies or
statements are found to be deficient, lacking in transparency, deceptive, unfair, or misrepresentative of our practices, we
may be subject to investigation, enforcement actions by regulators, or other adverse consequences.

Obligations related to data privacy and security (and consumers’ data privacy expectations) are quickly changing,
becoming  increasingly  stringent,  and  creating  uncertainty.    Additionally,  these  obligations  may  be  subject  to  differing
applications and interpretations, which may be inconsistent or conflict among jurisdictions.  Preparing for and complying
with these obligations requires us to devote significant resources and may necessitate changes to our services, information
technologies, systems, and practices and to those of any third parties that process personal data on our behalf.

We may at times fail (or be perceived to have failed) in our efforts to comply with our data privacy and security
obligations.  Moreover, despite our efforts, our personnel or third parties on whom we rely may fail to comply with such
obligations, which could negatively impact our business operations.  If we or the third parties on which we rely fail, or are
perceived  to  have  failed,  to  address  or  comply  with  applicable  data  privacy  and  security  obligations,  we  could  face
significant  consequences,  including  but  not  limited  to:  government  enforcement  actions  (e.g.,  investigations,  fines,
penalties,  audits,  inspections,  and  similar);  litigation  (including  class-action  claims)  and  mass  arbitration  demands;
additional  reporting  requirements  and/or  oversight;  bans  on  processing  personal  data;  and  orders  to  destroy  or  not  use
personal  data.    In  particular,  plaintiffs  have  become  increasingly  more  active  in  bringing  privacy-related  claims  against
companies, including class claims and mass arbitration demands.  Some of these claims allow for the recovery of statutory
damages  on  a  per  violation  basis,  and,  if  viable,  carry  the  potential  for  significant  statutory  damages,  depending  on  the
volume of data and the number of violations.  Any of these events could have a material adverse effect on our reputation,
business,  or  financial  condition,  including  but  not  limited  to:  loss  of  customers;  or  stoppages  in  our  business  operations
(including clinical trials); inability to process personal data or to operate in certain jurisdictions; limited ability to develop
our  drug  candidates;  expenditure  of  time  and  resources  to  defend  any  claim  or  inquiry;  adverse  publicity;  or  substantial
changes to our business model or operations.  

We  are  subject  to  governmental  economic  sanctions  and  export  and  import  controls  that  could  impair  our
potential  third-party  partners’  ability  to  compete  in  international  markets  or  subject  us  or  our  potential  third-party
partners to liability if we or they are not in compliance with applicable laws.

As  a  U.S.  company,  we  are  subject  to  U.S.  import  and  export  controls  and  economic  sanctions  laws  and
regulations,  and  we  are  required  to  import  and  export  our  drug  candidates,  technology  and  services  in  compliance  with
those  laws  and  regulations,  including  the  U.S.  Export  Administration  Regulations,  U.S.  Customs  regulations,  the
International Traffic in Arms Regulations, and economic embargo and trade sanction programs administered by the U.S.
Treasury Department’s Office of Foreign Assets Control.  

U.S.  economic  sanctions  and  export  control  laws  and  regulations  prohibit  the  shipment  of  certain  products  and
services to countries, governments and persons targeted by U.S. sanctions. While we are currently taking precautions to
prevent doing any business, directly or indirectly, with countries, governments and persons targeted by U.S. sanctions and
to  ensure  that  our  drug  candidates  are  not  exported  or  used  by  countries,  governments  and  persons  targeted  by  U.S.
sanctions, such measures may be circumvented.

Furthermore,  if  we  or  our  potential  third-party  partners  export  our  drug  candidates,  the  exports  may  require
authorizations,  including  a  license,  a  license  exception  or  other  appropriate  government  authorization.  Complying  with
export control and sanctions regulations may be time-consuming and may result in the delay or loss of sales opportunities.
Failure  to  comply  with  export  control  and  sanctions  regulations  may  expose  us  or  our  potential  third-party  partners  to
government investigations and penalties.

If we are found to be in violation of U.S. sanctions or import or export control laws, it could result in civil and
criminal, monetary and non-monetary penalties, including possible incarceration for those individuals responsible for the
violations, the loss of export or import privileges and reputational harm.

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We and our potential third-party partners are subject to anti-corruption and anti-money laundering laws with
respect to our and their operations and non-compliance with such laws can subject us to criminal and/or civil liability
and harm our business.

We and our potential third-party partners are subject to the FCPA, the U.S. domestic bribery statute contained in
18 U.S.C. § 201, the U.S. Travel Act, the USA PATRIOT Act and possibly other anti-bribery and anti-money laundering
laws in countries in which we conduct activities. Anti-corruption laws are interpreted broadly and prohibit companies and
their  employees  and  third-party  intermediaries  from  authorizing,  offering  or  providing,  directly  or  indirectly,  improper
payments or benefits to recipients in the public or private sector. We or our potential third-party partners may engage third-
party intermediaries in connection with the development or commercialization of our drug candidates, if approved, and to
obtain necessary permits, licenses and other regulatory approvals. We, our potential third-party partners or the third-party
intermediaries may have direct or indirect interactions with officials and employees of government agencies or state-owned
or affiliated entities. We can be held liable for the corrupt or other illegal activities of these third-party intermediaries, our
employees, representatives, contractors, partners and agents, even if we do not explicitly authorize such activities. 

Noncompliance  with  anti-corruption  and  anti-money  laundering  laws  could  subject  us  to  whistleblower
complaints,  investigations,  sanctions,  settlements,  prosecution,  other  enforcement  actions,  disgorgement  of  profits,
significant fines, damages, other civil and criminal penalties or injunctions, suspension and/or debarment from contracting
with  certain  persons,  the  loss  of  export  privileges,  reputational  harm,  adverse  media  coverage  and  other  collateral
consequences. Responding to any action will likely result in a materially significant diversion of management’s attention
and resources and significant defense costs and other professional fees.

Risks Related to Employee Matters and Managing Our Growth

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

personnel.

We  are  highly  dependent  on  the  management,  development,  clinical,  financial,  and  business  development
expertise  of  Dr.  Neal  Walker,  our  Interim  Chief  Executive  Officer  and  President,  Kevin  Balthaser,  our  Chief  Financial
Officer, Dr. Joseph Monahan, our Chief Scientific Officer, and James Loerop, our Chief Business Officer, as well as the
other  members  of  our  scientific  and  clinical  teams.  Although  we  have  entered  into  employment  agreements  with  our
executive  officers,  each  of  them  may  currently  terminate  their  employment  with  us  or  resign  at  any  time.  We  do  not
maintain “key person” insurance for any of our key executives. 

Recruiting  and  retaining  qualified  scientific,  manufacturing  and  clinical  personnel  will  also  be  critical  to  our
success. The loss of the services of our executive officers or other key employees could impede the achievement of our
development  objectives  and  seriously  harm  our  ability  to  successfully  implement  our  business  strategy.  Furthermore,
replacing executive officers and key employees may be difficult and may take an extended period of time because of the
limited number of individuals in our industry with the breadth of skills and experience required to successfully develop and
partner drug candidates. Competition to hire from this limited pool is intense, and we may be unable to hire, train, retain or
motivate  these  key  personnel  on  acceptable  terms  given  the  competition  among  numerous  pharmaceutical  and
biotechnology  companies  for  similar  personnel.  We  also  experience  competition  for  the  hiring  of  scientific  and  clinical
personnel from universities and research institutions. In addition, we rely on consultants and advisors, including scientific
and  clinical  advisors,  to  assist  us  in  formulating  our  development  strategy.  Our  consultants  and  advisors  may  have
commitments under employment, consulting or advisory contracts with other entities that may limit their availability to us.
If we are unable to continue to attract and retain high quality personnel, our ability to pursue our growth strategy will be
limited. 

Our employees, independent contractors, consultants, third-party partners, principal investigators, CROs and
vendors  may  engage  in  misconduct  or  other  improper  activities,  including  non-compliance  with  regulatory  standards
and requirements.

We are exposed to the risk that our employees, independent contractors, consultants, third-party partners, principal
investigators, CROs and vendors may engage in fraudulent conduct 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 FDA
regulations,  including  those  laws  requiring  the  reporting  of  true,  complete  and  accurate  information  to  the  FDA,
manufacturing standards, federal and state health care laws and regulations, and laws that require the true, complete

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and accurate reporting of financial information or data. In particular, sales, marketing and business arrangements by our
potential third-party partners in the health care industry are subject to extensive laws and regulations intended to prevent
fraud, kickbacks, self-dealing and other abusive practices. These laws and regulations may restrict or prohibit a wide range
of  pricing,  discounting,  marketing  and  promotion,  sales  commission,  customer  incentive  programs  and  other  business
arrangements.  Misconduct  by  these  parties  could  also  involve  the  improper  use  of  individually  identifiable  information,
including,  without  limitation,  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, but it is not always
possible  to  identify  and  deter  misconduct,  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
significant  impact  on  our  business,  including  the  imposition  of  significant  civil,  criminal  and  administrative  penalties,
including,  without  limitation,  damages,  fines,  disgorgement,  imprisonment,  exclusion  from  participation  in  government
health care programs, such as Medicare and Medicaid, additional reporting obligations and oversight if we are subject to a
corporate  integrity  agreement  or  other  agreement  to  resolve  allegations  of  non-compliance  with  these  laws,  and  the
curtailment or restructuring of our operations.

In addition, we have a hybrid work model of remote and in-person operations for our employees that enables us to
continue  to  develop  our  drug  candidates  and  provide  contract  research  services  to  our  clients.  The  effects  of  our  hybrid
work  model  may  negatively  impact  productivity,  disrupt  our  business  and  delay  our  preclinical  drug  development  and
clinical  trials  and  timelines.  These  and  similar,  and  perhaps  more  severe,  disruptions  in  our  operations  could  negatively
impact our business, operating results and financial condition.

Risks Related to Ownership of Our Common Stock

The trading price of the shares of our common stock has been and is likely to continue to be volatile.

Our stock price has been and is likely to continue to be volatile. The stock market in general and the market for
biotechnology companies in particular have experienced extreme volatility that has often been unrelated to the operating
performance of particular companies. As a result of this volatility, investors may not be able to sell their common stock at
or  above  the  price  paid  for  the  shares.  The  market  price  for  our  common  stock  may  be  influenced  by  many  factors,
including:

● the commencement, enrollment and/or results of any preclinical studies and clinical trials we may conduct, or

changes in the development status of our drug candidates;

● any delay in our regulatory filings for any of our drug candidates and any adverse development or perceived
adverse development with respect to the applicable regulatory authority’s review of such filings, including
without limitation the FDA’s issuance of a “refusal to file” letter or a request for additional information;

● adverse results from, delays in or termination of clinical trials;
● adverse regulatory decisions, including failure of any of our drug candidates to receive marketing approval;
● unanticipated serious safety concerns related to the use of any drug candidate or previously sold commercial

product;

● changes in financial estimates by us or by any securities analysts who might cover our stock;
● conditions or trends in our industry;
● changes in the structure of health care payment systems;
● changes in the market valuations of similar companies;
● stock market price and volume fluctuations of comparable companies and, in particular, those that operate in

the biotechnology industry;

● publication  of  research  reports  about  us  or  our  industry  or  positive  or  negative  recommendations  or

withdrawal of research coverage by securities analysts;

● announcements by us or our competitors of significant acquisitions, strategic partnerships or divestitures;
● announcements of investigations or regulatory scrutiny of our operations or lawsuits filed against us;
● investors’ general perception of our company and our business;
● recruitment or departure of key personnel;
● overall performance of the equity markets;
● trading volume of our common stock;

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● disputes  or  other  developments  relating  to  proprietary  rights,  including  patents,  litigation  matters  and  our

ability to obtain patent protection for our technologies;

● significant lawsuits, including patent or stockholder litigation;
● general political and economic conditions; and
● other events or factors, many of which are beyond our control.

In  the  past,  stockholders  have  initiated  class  action  lawsuits  against  us  and  other  pharmaceutical  companies
following  periods  of  volatility  in  the  market  prices  of  these  companies’  stock.  We  have  entered  into  indemnification
agreements  with  our  executive  officers  and  directors  which  provide,  among  other  things,  that  we  will  indemnify  such
officer or director, under the circumstances and to the extent provided for therein, for expenses, damages, judgments, fines
and settlements he or she may be required to pay in actions or proceedings which he or she is or may be made a party by
reason  of  his  or  her  position  as  our  director,  officer  or  other  agent,  and  otherwise  to  the  fullest  extent  permitted  under
Delaware law and our bylaws. Such additional litigation, if instituted against us, could cause us to incur substantial costs
and divert management’s attention and resources from our business.

If we fail to maintain compliance with the listing requirements of the Nasdaq Global Select Market, we may
be  delisted  and  the  price  of  our  common  stock  and  our  ability  to  access  the  capital  markets  could  be  negatively
impacted.

Our  common  stock  is  currently  listed  on  the  Nasdaq  Global  Select  Market.  To  maintain  the  listing  of  our
common  stock  on  the  Nasdaq  Global  Select  Market,  we  are  required  to  meet  certain  listing  requirements,  including,
among  others,  either:  (i)  a  minimum  closing  bid  price  of  $1.00  per  share,  a  market  value  of  publicly  held  shares
(excluding  shares  held  by  our  executive  officers,  directors  and  10%  or  more  stockholders)  of  at  least  $5  million  and
stockholders’ equity of at least $10 million; or (ii) a minimum closing bid price of $1.00 per share, a market value of
publicly held shares (excluding shares held by our executive officers, directors, affiliates and 10% or more stockholders)
of at least $15 million and a total market value of listed securities of at least $50.0 million.

We  may  fail  to  satisfy  one  or  more  the  Nasdaq  Global  Select  Market  requirements  for  continued  listing  of  our
common stock in the future. There can be no assurance that we will be successful in maintaining the listing of our common
stock on the Nasdaq Global Select Market, or, if transferred, on the Nasdaq Capital Market. This could impair the liquidity
and  market  price  of  our  common  stock.  In  addition,  the  delisting  of  our  common  stock  from  a  national  exchange  could
have a material adverse effect on our access to capital markets, and any limitation on market liquidity or reduction in the
price of our common stock as a result of that delisting could adversely affect our ability to raise capital on terms acceptable
to us, or at all.

Sales of a substantial number of shares of our common stock into the market 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. If our
stockholders sell, or the market perceives that our stockholders intend to sell, substantial amounts of our common stock in
the public market, the market price of our common stock could decline significantly.

In addition, we have filed registration statements on Form S-8 under the Securities Act registering the issuance of
shares of common stock subject to options or other equity awards issued or reserved for future issuance under our equity
incentive plans. Shares registered under these registration statements are available for sale in the public market subject to
vesting arrangements and exercise of options, and the restrictions of Rule 144 under the Securities Act in the case of our
affiliates.

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

There are provisions in our certificate of incorporation and bylaws that may make it difficult for a third party to
acquire, or attempt to acquire, control of our company, even if a change of control was considered favorable by some or all
of  our  stockholders.  For  example,  our  board  of  directors  has  the  authority  to  issue  up  to  10,000,000  shares  of  preferred
stock. The board of directors can fix the price, rights, preferences, privileges, and restrictions of the preferred stock without
any further vote or action by our stockholders. The issuance of shares of preferred stock may delay or prevent a change of

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control transaction. As a result, the market price of our common stock and the voting and other rights of our stockholders
may  be  adversely  affected.  An  issuance  of  shares  of  preferred  stock  may  result  in  the  loss  of  voting  control  to  other
stockholders.

Our charter documents also contain other provisions that could have an anti-takeover effect, including:

● only one of our three classes of directors is elected each year;
● stockholders are not entitled to remove directors other than by a 66 2/3% vote and only for cause;
● stockholders are not permitted to take actions by written consent;
● stockholders cannot call a special meeting of stockholders; and
● stockholders  must  give  advance  notice  to  nominate  directors  or  submit  proposals  for  consideration  at

stockholder meetings.

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

If  we  fail  to  maintain  proper  and  effective  internal  controls,  our  ability  to  produce  accurate  financial

statements on a timely basis could be impaired.

We  are  subject  to  the  reporting  requirements  of  the  Exchange  Act,  the  Sarbanes-Oxley  Act  and  the  rules  and
regulations  of  the  stock  market  on  which  our  common  stock  is  listed.  The  Sarbanes-Oxley  Act  requires,  among  other
things,  that  we  maintain  effective  disclosure  controls  and  procedures  and  internal  control  over  financial  reporting  and
perform system and process evaluation and testing of our internal control over financial reporting to allow management to
report on the effectiveness of our internal control over financial reporting. This requires that we incur substantial additional
professional  fees  and  internal  costs  to  expand  our  accounting  and  finance  functions  and  that  we  expend  significant
management efforts.

We may identify weaknesses in our system of internal financial and accounting controls and procedures that could
result in a material misstatement of our consolidated financial statements. Our internal control over financial reporting will
not prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only
reasonable, not absolute, assurance that the control system’s objectives will be met. Because of the inherent limitations in
all control systems, no evaluation of controls can provide absolute assurance that misstatements due to error or fraud will
not occur or that all control issues and instances of fraud will be detected.

If  we  are  unable  to  maintain  proper  and  effective  internal  controls,  we  may  not  be  able  to  produce  timely  and
accurate financial statements, and we may conclude that our internal control over financial reporting is not effective. If that
were to happen, the market price of our stock could decline, and we could be subject to sanctions or investigations by the
stock exchange on which our common stock is listed, the SEC, or other regulatory authorities.

We might not be able to utilize a significant portion of our net operating loss carryforwards and research and

development tax credit carryforwards.

As of December 31, 2023, we had federal and state net operating loss carryforwards, or NOLs, of $464.8 million
and  $395.3  million,  respectively,  which  will  begin  to  expire  in  2032.  Under  federal  law,  federal  NOL  carryforwards
generated  in  tax  years  beginning  after  December  31,  2017  may  be  carried  forward  indefinitely  but  may  only  be  used  to
offset 80% of our taxable income annually. It is uncertain if and to what extent various states will conform to the federal
tax law. As of December 31, 2023, we also had federal research and development tax credit carryforwards of $20.4 million
which will begin to expire in 2032, and state research and development tax credit carryforwards of $0.1 million which will
begin  to  expire  in  2022.  These  NOL  and  tax  credit  carryforwards  could  expire  unused  or  due  to  limitation  on  use  be
unavailable to offset future income tax liabilities. In addition, under Section 382 of the Internal Revenue Code of 1986, as
amended, and corresponding provisions of state law, if a corporation undergoes an “ownership change,” which is 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 net operating loss carryforwards and other pre-change tax attributes to offset its post-change income

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may  be  limited.  Although  we  have  experienced  Section  382  ownership  changes  between  2012  and  2023,  we  have
concluded  that  we  should  have  sufficient  ability  to  utilize  NOLs  accumulated  during  the  periods  tested.  In  addition,  we
may have experienced ownership changes since 2023 and may experience ownership changes in the future as a result of
subsequent shifts in our stock ownership, some of which may be outside of our control. If we determine that an ownership
change has occurred and our ability to use our historical NOL and tax credit carryforwards is materially limited, it might
harm our future operating results by effectively increasing our future tax obligations.

We do not anticipate paying any cash dividends on our common stock in the foreseeable future and our stock

may not appreciate in value.

We  have  not  declared  or  paid  cash  dividends  on  our  common  stock  to  date.  We  currently  intend  to  retain  our
future  earnings,  if  any,  to  fund  the  development  and  growth  of  our  business.  There  is  no  guarantee  that  shares  of  our
common stock will appreciate in value or that the price at which our stockholders have purchased their shares will be able
to be maintained.

Exclusive forum provisions in our amended and restated certificate of incorporation and amended and restated
bylaws could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors,
officers or other employees.

Our  amended  and  restated  certificate  of  incorporation  provides  that  the  Court  of  Chancery  of  the  State  of
Delaware is the exclusive forum for the following types of actions or proceedings under Delaware statutory or common
law: (i) any derivative action or proceeding brought on our behalf, (ii) any action asserting a claim for breach of a fiduciary
duty owed by any of our directors, officers or other employees to us or our stockholders, (iii) any action asserting a claim
arising  pursuant  to  any  provision  of  the  Delaware  General  Corporation  Law,  our  amended  and  restated  certificate  of
incorporation  or  our  amended  and  restated  bylaws  or  (iv)  any  action  asserting  a  claim  governed  by  the  internal  affairs
doctrine.  This  provision  would  not  apply  to  suits  brought  to  enforce  a  duty  or  liability  created  by  the  Exchange  Act.
Furthermore,  Section  22  of  the  Securities  Act  creates  concurrent  jurisdiction  for  federal  and  state  courts  over  all  such
Securities  Act  actions.  Accordingly,  both  state  and  federal  courts  have  jurisdiction  to  entertain  such  claims.  To  prevent
having  to  litigate  claims  in  multiple  jurisdictions  and  the  threat  of  inconsistent  or  contrary  rulings  by  different  courts,
among  other  considerations,  our  amended  and  restated  bylaws  provide  the  federal  district  courts  of  the  United  States  of
America will be the exclusive forum for resolving any complaint asserting a cause of action arising under the Securities
Act. While the Delaware courts have determined that such choice of forum provisions are facially valid, a stockholder may
nevertheless  seek  to  bring  a  claim  in  a  venue  other  than  those  designated  in  the  exclusive  forum  provisions.  In  such
instance,  we  would  expect  to  vigorously  assert  the  validity  and  enforceability  of  the  exclusive  forum  provisions  of  our
amended  and  restated  certificate  of  incorporation  and  our  amended  and  restated  bylaws.  This  may  require  significant
additional  costs  associated  with  resolving  such  action  in  other  jurisdictions  and  there  can  be  no  assurance  that  the
provisions will be enforced by a court in those other jurisdictions.

Our  amended  and  restated  certificate  of  incorporation  and  amended  and  restated  bylaws  further  provide  any
person or entity purchasing or otherwise acquiring any interest in shares of our common stock is deemed to have notice of
and consented to the foregoing provisions. These exclusive forum provisions may limit a stockholder’s ability to bring a
claim in a judicial forum that it finds favorable for disputes with us or our directors, officers, or other employees, which
may discourage lawsuits against us and our directors, officers and other employees. If a court were to find either exclusive-
forum  provision  to  be  inapplicable  or  unenforceable  in  an  action,  we  may  incur  further  significant  additional  costs
associated with resolving the dispute in other jurisdictions, all of which could seriously harm our business.

General Risk Factors

If  our  information  technology  systems,  those  of  third  parties  upon  which  we  rely,  or  our  data  are  or  were
compromised, we could experience adverse consequences resulting from such compromise, including but not limited to
regulatory investigations or actions; litigation; fines and penalties; disruptions of our business operations; reputational
harm; loss of revenue or profits; and other adverse consequences.

In the ordinary course of our business, we and the third parties upon which we rely process sensitive data, and, as
a result, we and the third parties upon which we rely face a variety of evolving threats that could cause security incidents.
Cyber-attacks,  malicious  internet-based  activity,  online  and  offline  fraud,  and  other  similar  activities  threaten  the
confidentiality, integrity, and availability of our sensitive data and information technology systems, and those of the third

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parties upon which we rely.  Such threats are prevalent and continue to rise, are increasingly difficult to detect, and come
from a variety of sources, including traditional computer “hackers,” threat actors, “hacktivists,” organized criminal threat
actors, personnel (such as through theft or misuse), sophisticated nation states, and nation-state-supported actors.  

Some  actors  now  engage  and  are  expected  to  continue  to  engage  in  cyber-attacks,  including  without  limitation
nation-state actors for geopolitical reasons and in conjunction with military conflicts and defense activities.  During times
of war and other major conflicts, we and the third parties upon which we rely may be vulnerable to a heightened risk of
these  attacks,  including  retaliatory  cyber-attacks,  that  could  materially  disrupt  our  systems  and  operations,  supply  chain,
and ability to develop our drug candidates and provide our services.  

We and the third parties upon which we rely are subject to a variety of evolving threats, including but not limited
to social-engineering attacks (including through deep fakes, which may be increasingly more difficult to identify as fake,
and phishing attacks), malicious code (such as viruses and worms), malware (including as a result of advanced persistent
threat  intrusions),  denial-of-service  attacks,  credential  stuffing,  credential  harvesting,  personnel  misconduct  or  error,
ransomware attacks, supply-chain attacks, software bugs, server malfunctions, software or hardware failures, loss of data or
other  information  technology  assets,  adware,  attacks  enhanced  or  facilitated  by  AI,  telecommunications  failures,
earthquakes, fires, floods, and other similar threats.

In  particular,  severe  ransomware  attacks  are  becoming  increasingly  prevalent  and  can  lead  to  significant
interruptions in our operations, ability to develop our drug candidates or provide our services, loss of sensitive data and
income, reputational harm, and diversion of funds.  Extortion payments may alleviate the negative impact of a ransomware
attack,  but  we  may  be  unwilling  or  unable  to  make  such  payments  due  to,  for  example,  applicable  laws  or  regulations
prohibiting such payments.  

Remote work has become more common and has increased risks to our information technology systems and data,
as more of our employees utilize network connections, computers, and devices outside our premises or network, including
working  at  home,  while  in  transit  and  in  public  locations.    Additionally,  future  or  past  business  transactions  (such  as
acquisitions or integrations) could expose us to additional cybersecurity risks and vulnerabilities, as our systems could be
negatively affected by vulnerabilities present in acquired or integrated entities’ systems and technologies.  Furthermore, we
may discover security issues that were not found during due diligence of such acquired or integrated entities, and it may be
difficult to integrate companies into our information technology environment and security program.

In  addition,  our  reliance  on  third-party  service  providers  could  introduce  new  cybersecurity  risks  and
vulnerabilities, including supply-chain attacks and other threats to our business operations.  We rely on third-party service
providers and technologies to operate critical business systems to process sensitive data in a variety of contexts, including,
without  limitation,  cloud-based  infrastructure,  data  center  facilities,  SaaS  platforms,  encryption  and  authentication
technology, employee email and other functions.  We also rely on third-party service providers to provide other products
and services, or otherwise to operate our business.  Our ability to monitor these third parties’ information security practices
is limited, and these third parties may not have adequate information security measures in place.  If our third-party service
providers experience a security incident or other interruption, we could experience adverse consequences.  While we may
be entitled to damages if our third-party service providers fail to satisfy their privacy or security-related obligations to us,
any award may be insufficient to cover our damages, or we may be unable to recover such award.  In addition, supply-
chain  attacks  have  increased  in  frequency  and  severity,  and  we  cannot  guarantee  that  third  parties’  infrastructure  in  our
supply chain or our third-party partners’ supply chains have not been compromised.

While  we  have  implemented  security  measures  designed  to  protect  against  security  incidents,  there  can  be  no
assurance that these measures will be effective.  We take steps designed to detect, mitigate, and remediate vulnerabilities in
our  information  systems  (such  as  our  hardware  and/or  software).  We  may  not,  however,  detect  and  remediate  all  such
vulnerabilities  including  on  a  timely  basis.    Further,  we  may  experience  delays  in  developing  and  deploying  remedial
measures  and  patches  designed  to  address  identified  vulnerabilities.    Vulnerabilities  could  be  exploited  and  result  in  a
security incident.

Any of the previously identified or similar threats could cause a security incident or other interruption that could
result in unauthorized, unlawful, or accidental acquisition, modification, destruction, loss, alteration, encryption, disclosure
of, or access to our sensitive data or our information technology systems, or those of the third parties upon whom we rely.
 A security incident or other interruption could disrupt our ability (and that of third parties upon whom we rely) to operate
our business.

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We may expend significant resources or modify our business activities to try to protect against security incidents.
 Additionally,  certain  data  privacy  and  security  obligations  may  require  us  to  implement  and  maintain  specific  security
measures or industry-standard or reasonable security measures to protect our information technology systems and sensitive
data.

Applicable data privacy and security obligations may require us to notify relevant stakeholders, including affected
individuals, customers, regulators, and investors, of security incidents.  Such disclosures are costly, and the disclosure or
the failure to comply with such requirements could lead to adverse consequences.

If we (or a third party upon whom we rely) experience a security incident or are perceived to have experienced a
security  incident,  we  may  experience  adverse  consequences,  such  as  government  enforcement  actions  (for  example,
investigations, fines, penalties, audits, and inspections); additional reporting requirements and/or oversight; restrictions on
processing  sensitive  data  (including  personal  data);  litigation  (including  class  claims);  indemnification  obligations;
negative publicity; reputational harm; monetary fund diversions; diversion of management attention; interruptions in our
operations  (including  availability  of  data);  financial  loss;  and  other  similar  harms.    Security  incidents  and  attendant
consequences may prevent or cause customers to stop using our services, deter new customers from using our services, and
negatively impact our ability to grow and operate our business.

Our  contracts  may  not  contain  limitations  of  liability,  and  even  where  they  do,  there  can  be  no  assurance  that
limitations of liability in our contracts are sufficient to protect us from liabilities, damages, or claims related to our data
privacy and security obligations.  We cannot be sure that our insurance coverage will be adequate or sufficient to protect us
from  or  to  mitigate  liabilities  arising  out  of  our  privacy  and  security  practices,  that  such  coverage  will  continue  to  be
available on commercially reasonable terms or at all, or that such coverage will pay future claims.

In addition to experiencing a security incident, third parties may gather, collect, or infer sensitive data about us
from public sources, data brokers, or other means that reveals competitively sensitive details about our organization and
could be used to undermine our competitive advantage or market position.

An active trading market for our common stock may not be sustained.

Although our common stock is listed on The Nasdaq Global Select Market, we cannot assure you that an active
trading  market  for  our  shares  will  be  sustained.  If  an  active  market  for  our  common  stock  is  not  sustained,  it  may  be
difficult for investors in our common stock to sell shares without depressing the market price for the shares or to sell the
shares at all. 

If  equity  research  analysts  do  not  publish  research  or  reports,  or  publish  unfavorable  research  or  reports,

about us, our business or our market, our stock price and trading volume could decline.

The trading market for our common stock is influenced by the research and reports that equity research analysts
publish  about  us  or  our  business,  our  market  and  our  competitors.  Equity  research  analysts  may  elect  not  to  initiate  or
continue to provide research coverage of our common stock, and such lack of research coverage may adversely affect the
market price of our common stock. Even if we have equity research analyst coverage, we will not have any control over the
analysts or the content and opinions included in their reports. The price of our stock could decline if one or more equity
research analysts downgrade our stock or issue other unfavorable commentary or research. If one or more equity research
analysts ceases coverage of our company or fails to publish reports on us regularly, demand for our stock could decrease,
which in turn could cause our stock price or trading volume to decline. 

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

Increasingly,  in  addition  to  the  importance  of  their  financial  performance,  companies  are  being  judged  by  their
performance on a variety of environmental, social and governance, or ESG, matters, which are considered to contribute to
the long-term sustainability of companies’ performance.

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A variety of organizations measure the performance of companies on such ESG topics, and the results of these
assessments are widely publicized. In addition, investment in funds that specialize in companies that perform well in such
assessments  are  increasingly  popular,  and  major  institutional  investors  have  publicly  emphasized  the  importance  of
such ESG measures to their investment decisions. Topics taken into account in such assessments include, among others, the
company’s efforts and impacts on climate change and human rights, ethics and compliance with law, and the role of the
company’s board of directors in supervising various sustainability issues. In addition to the topics typically considered in
such assessments, in the healthcare industry, issues of the public’s ability to access medicines are of particular importance.

In light of investors’ increased focus on ESG matters, there can be no certainty that we will manage such issues
successfully. Any failure or perceived failure by us in this regard could have a material adverse effect on our reputation and
on our business, stock price, financial condition, or results of operations, including the sustainability of our business over
time.

Unfavorable conditions, including inflationary pressure, in the global economy could limit our ability to grow

our business and negatively affect our operating results.

General  worldwide  economic  conditions  have  experienced  significant  instability  in  recent  years  including  the
recent global economic uncertainty and financial market conditions. For example, inflation rates, particularly in the United
States  and  United  Kingdom,  have  increased  recently  to  levels  not  seen  in  years,  and  increased  inflation  may  result  in
increases in our operating costs (including our labor costs), reduced liquidity and limits on our ability to access credit or
otherwise  raise  capital.  In  addition,  the  Federal  Reserve  has  raised,  and  may  again  raise,  interest  rates  in  response  to
concerns about inflation, which coupled with reduced government spending and volatility in financial markets may have
the  effect  of  further  increasing  economic  uncertainty  and  heightening  these  risks.  Additionally,  financial  markets  around
the world have experienced volatility in connection with geopolitical conflicts. These conditions make it extremely difficult
for us to accurately forecast and plan future business activities.

The issuance of additional stock in connection with financings, acquisitions, investments, our equity incentive

plan or otherwise will dilute all other stockholders.

Our  certificate  of  incorporation  authorizes  us  to  issue  up  to  200,000,000  shares  of  common  stock  and  up  to
10,000,000  shares  of  preferred  stock  with  such  rights  and  preferences  as  may  be  determined  by  our  board  of  directors.
Subject  to  compliance  with  applicable  rules  and  regulations,  we  may  issue  our  shares  of  common  stock  or  securities
convertible into our common stock from time to time in connection with a financing, acquisition, investment, our equity
incentive plan or otherwise. Any such issuance could result in substantial dilution to our existing stockholders and cause
the trading price of our common stock to decline. 

Changes in tax laws or regulations that are applied adversely to us may have a material adverse effect on our

business, cash flow, financial condition or results of operations.

New income, sales, use or other tax laws, statutes, rules, regulations or ordinances could be enacted at any time,
which could adversely affect our business operations and financial performance. For example, the Inflation Reduction Act
provides for a minimum tax equal to 15% of the adjusted financial statement income of certain large corporations, as well
as  a  1%  excise  tax  on  certain  share  buybacks  by  public  corporations  that  would  be  imposed  on  such  corporations.  In
addition, it is uncertain if and to what extent various states will conform to newly enacted federal tax legislation. Changes
in corporate tax rates, the realization of net deferred tax assets relating to our operations, the taxation of foreign earnings,
and  the  deductibility  of  expenses  could  have  a  material  impact  on  the  value  of  our  deferred  tax  assets,  could  result  in
significant one-time charges, and could increase our future U.S. tax expense.

We incur significant costs and demands upon management as a result of being a public company.

As a public company listed in the United States, we incur, and will continue to incur, particularly now that we no
longer qualify as a “smaller reporting company,” significant legal, accounting and other costs. These costs could negatively
affect  our  financial  results.  In  addition,  changing  laws,  regulations  and  standards  relating  to  corporate  governance  and
public disclosure, including regulations implemented by the SEC and The Nasdaq Stock Market, may increase legal and
financial  compliance  costs  and  make  some  activities  more  time-consuming.  These  laws,  regulations  and  standards  are
subject to varying interpretations and, as a result, their application in practice may evolve over time as new guidance is

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provided by regulatory and governing bodies. We intend to invest resources to comply with evolving laws, regulations and
standards,  and  this  investment  may  result  in  increased  general  and  administrative  expenses  and  a  diversion  of
management’s time and attention from revenue-generating activities to compliance activities. If notwithstanding our efforts
to  comply  with  new  laws,  regulations  and  standards,  we  fail  to  comply,  regulatory  authorities  may  initiate  legal
proceedings against us and our business may be harmed.

Failure  to  comply  with  these  rules  might  also  make  it  more  difficult  for  us  to  obtain  some  types  of  insurance,
including director and officer liability insurance, and we might be forced to accept reduced policy limits and coverage or
incur substantially higher costs to obtain the same or similar coverage. The impact of these events could also make it more
difficult  for  us  to  attract  and  retain  qualified  persons  to  serve  on  our  board  of  directors,  on  committees  of  our  board  of
directors or as members of senior management.

Item 1B. Unresolved Staff Comments

None.

Item 1C. Cybersecurity

Risk Management and Strategy

We  rely  on  information  technology  and  data  to  operate  our  business  of  developing  new  drugs  and  providing
contract research services. Our critical information technology resources include computer networks and hardware, third
party hosted services, communications systems and software, and critical data including confidential, personal, proprietary
and sensitive data (collectively, “Information Assets”). To operate our business, we also utilize certain third-party service
providers to perform a variety of functions, such as professional services, SaaS platforms, managed services, cloud-based
infrastructure, encryption and authentication technology, corporate productivity services, and other functions. Accordingly,
we have implemented and maintain certain risk assessment processes intended to identify cybersecurity threats, determine
their likelihood of occurring, and assess and manage potential material impact to our business. We implement and maintain
various  information  security  and  risk  management  processes  designed  to  protect  the  confidentiality,  integrity,  and
availability of our Information Assets and mitigate harm to our business.

We rely on a multidisciplinary team (including members from information technology (IT), which reports to our
Chief Financial Officer, finance, and legal, as well as third party service providers as described further below) to identify,
assess, and manage cybersecurity threats that could impact our business. We assess the likelihood that such threats could
result in a material impact to our Information Assets, operations, ability to provide our services, core business functions,
personnel, reputation and identified critical business objectives.

Risks from cybersecurity threats are among those that we address in our general risk management program. We
identify,  assess,  and  manage  such  threats  by,  among  other  things,  monitoring  the  threat  environment  using  manual  and
automated  tools,  subscribing  to  reports  and  services  that  identify  cybersecurity  threats,  conducting  scans  of  the  threat
environment, and conducting vulnerability assessments. We also engage third parties to conduct annual penetrations tests,
as well as to provide threat and security risk assessments and intelligence feeds.

Based  on  our  assessment  process  and  depending  on  the  environment,  we  implement  and  maintain  various
technical, physical and organizational measures, processes, standards and policies designed to manage and mitigate such
risks and potential material impacts. These measures we implement for certain of our Information Assets include: policies
and  procedures  designed  to  address  cybersecurity  threats,  including  an  incident  response  plan;  incident  detection  and
response;  risk  assessments;  background  checks  on  our  personnel;  encryption  of  data;  network  security  controls;  data
segregation;  access  controls;  physical  security;  asset  management,  tracking  and  disposal;  employee  security  training;
penetration testing; and cyber insurance.

Our assessment and management of material risks from cybersecurity threats are integrated into our overall risk
management  processes.  For  example,  the  IT  department  works  with  management  to  prioritize  our  risk  management
processes and mitigate cybersecurity threats that are more likely to lead to a material impact to our business.

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We  work  with  third  parties  from  time  to  time  that  assist  us  to  identify,  assess,  and  manage  material  risks  from
cybersecurity  threats,  including,  for  example,  professional  services  firms  (including  legal  counsel),  threat  intelligence
service  providers,  cybersecurity  software  providers,  managed  cybersecurity  service  providers,  forensic  investigators,  and
penetration testing firms.

For a description of the risks from cybersecurity threats that may materially affect us and how they may do so,
refer to “Item 1A. Risk factors” in this Annual Report on Form 10-K, including “If our information technology systems,
those of third parties upon which we rely, or our data are or were compromised, we could experience adverse consequences
resulting  from  such  compromise,  including  but  not  limited  to  regulatory  investigations  or  actions;  litigation;  fines  and
penalties;  disruptions  of  our  business  operations;  reputational  harm;  loss  of  revenue  or  profits;  and  other  adverse
consequences.”

Governance

Our  board  of  directors,  through  its  Audit  Committee,  is  responsible  for  overseeing  the  Company’s  risk
management  strategy  with  respect  to  cybersecurity  threats.  The  Audit  Committee  is  responsible  for  overseeing  the
Company’s cybersecurity risk management processes, including oversight of mitigation of risks from cybersecurity threats.

Our  cybersecurity  risk  assessment  and  management  processes  are  implemented  and  maintained  by  certain
Company  management,  including  our  Chief  Financial  Officer  who  is  supported  by  our  IT  department  which  includes
personnel with over 10 years of experience overseeing and working with various cybersecurity tools.

Our cybersecurity risk management strategy relies on input from management to help us understand cybersecurity
risks,  establish  priorities,  and  determine  the  scope  and  details  of  our  cybersecurity  program  and  to  implement  it.
Management, including our Chief Financial Officer, is responsible for approving budgets, helping prepare for cybersecurity
incidents,  approving  cybersecurity  processes,  and  reviewing  security  assessments  and  other  security-related  reports.
Management,  including  our  Chief  Financial  Officer  and  General  Counsel,  is  also  responsible  for  hiring  appropriate
personnel,  engaging  third  party  vendors,  integrating  cybersecurity  considerations  into  the  company’s  overall  risk
management  strategy,  approving  cybersecurity  policies  and  procedures,  and  overseeing  employee  training.  Our
cybersecurity incident response process involves members of management who also participate in our disclosure controls
and procedures.

Our cybersecurity incident response plan and information security incidence response procedures are designed to
escalate certain cybersecurity incidents to members of management depending on the circumstances, including the Chief
Financial  Officer  and  the  General  Counsel.  The  Chief  Financial  Officer  and  the  General  Counsel  work  with  our
cybersecurity incident response team to help us mitigate and remediate cybersecurity incidents of which they are notified.
In addition, our cybersecurity incident response plan includes reporting to the Audit Committee for certain cybersecurity
incidents.

Members of management meet periodically with the IT department to discuss cybersecurity risk and to review our
cybersecurity  program,  and  report  to  the  Audit  Committee.  The  Audit  Committee  holds  meetings  biannually  to  discuss
cybersecurity issues including our cybersecurity threats, and has a dedicated agenda during such meetings that is designed
to assist the Audit Committee to exercise its oversight function. These meetings involve regular presentations and reports
from management and third party providers, including updates of contemporary cybersecurity threats faced by us and steps
we are taking to address them.

Item 2. Properties

We  lease  11,564  square  feet  of  space  for  our  headquarters  in  Wayne,  Pennsylvania,  which  we  use  for  our

therapeutics business. The lease has a term through February 2029.

We also sublease 26,694 square feet of office and laboratory space in St. Louis, Missouri, which we use for our
therapeutics and contract research businesses. The sublease has an initial term through June 2029. We have the option to
extend the initial term for two additional five-year periods.

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We believe that our facilities are suitable and adequate to meet our current needs.

Item 3. Legal Proceedings

From time to time we are subject to litigation and claims arising in the ordinary course of business. We are not
currently  a  party  to  any  material  legal  proceedings  and  we  are  not  aware  of  any  other  pending  or  threatened  legal
proceeding against us that we believe could have a material adverse effect on our business, operating results, cash flows or
financial condition. 

Item 4. Mine Safety Disclosures

Not applicable.

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

PART II

Market Information for Common Stock

Our common stock is listed on the Nasdaq Global Select Market under the symbol “ACRS.”  

Dividend Policy

We have never declared or paid any dividends on our common stock. We anticipate that we will retain all of our
future earnings, if any, for use in the operation and expansion of our business and do not anticipate paying cash dividends
in the foreseeable future.

Stockholders

As of January 31, 2024, we had 70,925,042 shares of common stock outstanding held by 49 holders of record. The
actual number of stockholders is greater than this number of record holders and includes stockholders who are beneficial
owners  but  whose  shares  are  held  in  street  name  by  brokers  and  other  nominees.  This  number  of  holders  of  record  also
does not include stockholders whose shares may be held in trust by other entities.

Recent Sales of Unregistered Securities

None.

Purchases of Equity Securities by the Issuer and Affiliated Parties

None.

Stock Performance Graph

The  graph  below  compares  the  cumulative  total  stockholder  return  for  the  period  December  31,  2018  through
December 31, 2023 for (i) our common stock, (ii) the Nasdaq Biotechnology Index and (iii) the Nasdaq Composite Index.
The graph assumes an investment of $100 on December 31, 2018 in each of our common stock, the Nasdaq Biotechnology
Index and the Nasdaq Composite Index and the reinvestment of dividends, if any, although we have never declared or paid
any dividends on our common stock. The stock price performance shown on the graph below is based on historical data
and is not indicative of future stock price performance.

The graph and table below shall not be deemed “soliciting material” or to be “filed” with the SEC for purposes of
Section  18  of  the  Exchange  Act  or  otherwise  subject  to  the  liabilities  under  that  Section  and  shall  not  be  deemed  to  be
incorporated by reference into any of our filings under the Securities Act or the Exchange Act.

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Aclaris Therapeutics, Inc.
Nasdaq Composite Index
Nasdaq Biotechnology Index

Item 6. [Reserved]

     12/31/18      12/31/19      12/31/20      12/31/21      12/31/22      12/31/23
$ 14.21
$ 236.17
$ 148.72

$ 196.75
$ 242.03
$ 158.20

$ 213.13
$ 163.28
$ 142.19

$ 25.58
$ 136.69
$ 125.11

$ 87.55
$ 198.10
$ 158.17

$ 100.00
$ 100.00
$ 100.00

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

You  should  read  the  following  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  in
conjunction  with  the  consolidated  financial  statements  and  the  related  notes  to  those  statements  included  later  in  this
Annual  Report.  In  addition  to  historical  financial  information,  the  following  discussion  contains  forward-looking
statements that reflect our plans, estimates, beliefs and expectations that involve risks and uncertainties. Our actual results
and  the  timing  of  events  could  differ  materially  from  those  discussed  in  these  forward-looking  statements.  Factors  that
could  cause  or  contribute  to  these  differences  include  those  discussed  below  and  elsewhere  in  this  Annual  Report,
particularly in Part I, Item 1A. “Risk Factors,” and “Special Note Regarding Forward-Looking Statements.”

Overview

We  are  a  clinical-stage  biopharmaceutical  company  focused  on  developing  novel  drug  candidates  for  immuno-
inflammatory  diseases.  Our  proprietary  KINect  drug  discovery  platform  combined  with  our  preclinical  development
capabilities  allows  us  to  identify  and  advance  potential  drug  candidates  that  we  may  develop  independently  or  in
collaboration  with  third  parties.  In  addition  to  identifying  and  developing  our  novel  drug  candidates,  we  are  pursuing
strategic  alternatives,  including  identifying  and  consummating  transactions  with  third-party  partners,  to  further  develop,
obtain marketing approval for and/or commercialize our novel drug candidates. We also provide contract research services
to third parties enabled by our early-stage research and development expertise. In January 2024, we announced that we are
undertaking a strategic review of our business.

ATI-1777, an Investigational Topical “Soft” JAK 1/3 Inhibitor

ATI-1777 is an investigational topical “soft” JAK 1/3 inhibitor for the potential treatment of atopic dermatitis and
potentially other dermatologic conditions. “Soft” JAK inhibitors are designed to be topically applied and active in the skin,
but rapidly metabolized and inactivated when they enter the bloodstream, which may result in low systemic exposure.

In  January  2024,  we  announced  positive  top-line  results  from  our  Phase  2b  study  of  ATI-1777  in  patients  with
mild to severe atopic dermatitis (ATI-1777-AD-202). ATI-1777-AD-202 was a Phase 2b, multicenter, randomized, double-
blind, vehicle-controlled, parallel-group clinical trial to evaluate the efficacy, safety, tolerability and pharmacokinetics, or
PK,  of  multiple  concentrations  (0.5%,  1%  and  2%)  of  twice  daily,  or  BID,  treatment  with  ATI-1777  and  a  single
concentration (2%) of once daily, or QD, treatment with ATI-1777. The trial randomized 250 patients with mild, moderate
or  severe  atopic  dermatitis,  including  adults  and  children  as  young  as  12  years  old,  across  30  clinical  trial  sites  in  the
United  States.  The  study  met  the  primary  efficacy  endpoint,  the  percent  change  from  baseline  in  the  Eczema  Area  and
Severity Index, or EASI, score at week 4, with statistical significance for patients treated with ATI-1777 2% BID compared
to patients treated with vehicle (69.7% versus 58.7% in the pooled vehicle group, p=0.035). No meaningful safety findings
were observed and ATI-1777 was well tolerated.

We intend to seek a development and commercialization partner for this program.

ATI-2138, an Investigational Oral Covalent ITK/JAK3 Inhibitor

ATI-2138  is  an  investigational  oral  covalent  ITK/JAK3  inhibitor  for  the  potential  treatment  of  T  cell-mediated
autoimmune diseases. The ITK/JAK3 compound interrupts T cell signaling through the combined inhibition of ITK/JAK3
pathways in lymphocytes.

In September 2023, we announced positive results from our Phase 1 multiple ascending dose, or MAD, trial of
ATI-2138  (ATI-2138-PKPD-102).  ATI-2138-PKPD-201  was  a  two-week  Phase  1  placebo-controlled,  randomized,  MAD
trial  to  investigate  the  safety,  tolerability,  PK,  and  pharmacodynamics  of  ATI-2138  in  healthy  volunteers.  The  study
enrolled 60 healthy subjects across 6 dosing cohorts ranging from 10 to 80 mg of total daily doses, with eight active and
two placebo controlled per arm. Data from the trial demonstrated that ATI-2138 was generally well tolerated at all doses
tested in the trial and had dose proportional PK. Additionally, ATI-2138 demonstrated a dose-dependent inhibition of both
ITK and JAK3 exploratory pharmacodynamic biomarkers, with near maximal inhibition achieved at the 30 mg total daily
dose. No serious adverse events were reported.

We are assessing the most effective development pathway, including the lead indication, for ATI-2138.

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Zunsemetinib, an Investigational Oral MK2 Inhibitor

Zunsemetinib,  or  ATI-450,  is  an  investigational  oral,  novel,  small  molecule  selective  MK2  inhibitor  for  the
potential  treatment  of  metastatic  breast  cancer  and  pancreatic  ductal  adenocarcinoma.    We plan to support Washington
University in St. Louis in its investigator-initiated Phase 1b/2 trials of zunsemetinib in patients with MBC and PDAC. We
expect these studies to be primarily funded by grants awarded to Washington University.

Discovery Programs and KINect Drug Discovery Platform

We conduct small molecule drug discovery and preclinical development research through KINect, our proprietary
drug  discovery  platform.  Our  KINect  platform  enables  us  to  identify  potential  drug  candidates  through  a  unique
combination  of  our  proprietary  chemical  library  of  kinase  inhibitors,  our  novel  approaches  to  inhibitor  modalities,  our
expertise in SBDD, and our custom kinase assays.

Our  focus  has  been  on  difficult  to  drug  kinase  targets  that  exhibit  some  level  of  clinical,  genetic  and/or
pharmacological  disease  validation.  Our  approach  involves  the  following  mechanisms:  (1)  reversible  and  irreversible
covalent  inhibitors,  (2)  molecular  glue/complex  targeted  inhibitors  and  (3)  targeted  protein  degraders.  These  novel
approaches are currently being utilized to prosecute additional validated, difficult to drug kinase targets with the goal of
demonstrating potential platform utility.

We are actively progressing several discovery programs focused on delivering the next wave of drug candidates
from our KINect platform. Our discovery efforts center on targeting kinases that play pivotal roles in various inflammatory,
autoimmune,  and  oncology  pathways.  We  intend  to  evaluate  both  internal  and  external  development  options,  including
strategic partnerships, for these assets.

Discontinued Programs

We were previously developing zunsemetinib as a potential treatment for various immuno-inflammatory diseases,
including  hidradenitis  suppurativa,  psoriatic  arthritis,  and  rheumatoid  arthritis.  In  March  2023,  we  announced  that  our
Phase  2a  study  of  zunsemetinib  in  patients  with  hidradenitis  suppurativa  did  not  meet  its  primary  or  second  efficacy
endpoints,  and  in  November  2023,  we  announced  that  our  Phase  2b  study  of  zunsemetinib  in  patients  with  rheumatoid
arthritis  did  not  meet  its  primary  or  second  efficacy  endpoints.  Following  the  results  of  these  trials,  in  2023  we
discontinued  further  development  of  our  MK2  inhibitor  programs  in  immuno-inflammatory  diseases,  including  halting
enrollment in our Phase 2a study of zunsemetinib in patients with psoriatic arthritis.

We  were  previously  exploring  the  use  of  ATI-2231,  our  second  MK2  inhibitor,  as  a  potential  treatment  for

oncology diseases, but decided to pursue this with zunsemetinib due to its more advanced clinical development package.

Financial Overview

Since  our  inception,  we  have  incurred  significant  net  losses.  Our  net  loss  was  $88.5  million  for  the  year  ended
December  31,  2023  and  $86.9  million  for  the  year  ended  December  31,  2022.  As  of  December  31,  2023,  we  had  an
accumulated  deficit  of  $770.8  million.  We  expect  to  incur  significant  expenses  and  operating  losses  for  the  foreseeable
future as we advance our drug candidates from discovery through preclinical and clinical development.  In addition, our
drug candidates, even if they are approved by regulatory agencies for marketing, may not achieve commercial success. We
may  also  not  be  successful  in  pursuing  strategic  alternatives,  including  identifying  and  consummating  transactions  with
third-party  partners,  to  further  develop,  obtain  marketing  approval  for  and/or  commercialize  our  drug  candidates.
Furthermore,  we  have  incurred  and  expect  to  continue  to  incur  significant  costs  associated  with  operating  as  a  public
company, including legal, accounting, investor relations and other expenses. As a result, we will need substantial additional
funding to support our continuing operations.

We have historically financed our operations primarily with sales of equity securities and incurring indebtedness
in the form of loans from commercial lenders. In the near term, we expect to finance our operations through these and other
capital sources, including potential partnerships with other companies or other strategic transactions. We may be unable to
raise additional funds or enter into such other agreements or arrangements when needed on commercially acceptable terms,
or at all. If we fail to raise capital or enter into such agreements as, and when needed, we may have to significantly delay,
scale back or discontinue the development of one or more of our drug candidates.

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Impact of Macroeconomic Conditions on Our Business

Unfavorable conditions in the economy both in the United States and abroad may negatively affect the growth of
our business and our results of operations. For example, macroeconomic events, including rising inflation, the U.S. Federal
Reserve  raising  interest  rates  and  geopolitical  conflicts,  have  led  to  economic  uncertainty  globally.  The  effect  of
macroeconomic  conditions  may  not  be  fully  reflected  in  our  results  of  operations  until  future  periods.  If,  however,
economic uncertainty increases or the global economy worsens, our business, financial condition and results of operations
may  be  harmed.  For  further  discussion  of  the  potential  impacts  of  macroeconomic  events  on  our  business,  financial
condition, and operating results, see the section titled “Risk Factors.”

Acquisition and License Agreements

License Agreement with Sun Pharmaceutical Industries, Inc.

In  December  2023,  we  entered  into  an  exclusive  patent  license  agreement  with  Sun  Pharmaceutical  Industries,
Inc., or Sun Pharma. Under the license agreement, we granted Sun Pharma exclusive rights under certain patents that we
exclusively license from a third party. The patents relate to the use of deuruxolitinib, Sun Pharma’s JAK inhibitor, or other
isotopic forms of ruxolitinib, to treat alopecia areata or androgenetic alopecia. Under the license agreement, Sun Pharma
has  agreed  to  pay  us  an  upfront  payment,  regulatory  and  commercial  milestone  payments,  and  a  mid  single-digit  tiered
royalty  calculated  as  a  percentage  of  Sun  Pharma’s  net  sales.  We  have  separate  contractual  obligations  under  which  we
have agreed to pay to third parties a portion of the consideration we may receive under the license agreement.

Upon execution of the agreement, we received an upfront payment of $15.0 million from Sun Pharma, a portion of

which was payable to third parties.

License Agreement with Pediatrix Therapeutics, Inc.

In  November  2022,  we  entered  into  a  license  agreement  with  Pediatrix  Therapeutics,  Inc.,  or  Pediatrix,  under
which we granted Pediatrix the exclusive rights to develop, manufacture and commercialize ATI-1777 in Greater China.
Pediatrix  has  agreed  to  pay  us  an  upfront  payment,  development,  regulatory  and  commercial  milestone  payments,  and  a
tiered royalty ranging from a low-to-high single digit percentage of net sales of ATI-1777 by Pediatrix in Greater China. A
portion  of  consideration  received  from  Pediatrix  is  payable  to  the  former  Confluence  equity  holders  as  described  below
under the caption “—Agreement and Plan of Merger with Confluence.”

Upon  execution  of  the  agreement,  we  received  an  upfront  payment  of  $5.0  million  from  Pediatrix,  a  portion  of

which was payable to the former Confluence equity holders.

License Agreement with Eli Lilly and Company

In August 2022, we entered into a non-exclusive patent license agreement with Eli Lilly and Company, or Lilly.
Under the license agreement, we granted Lilly non-exclusive rights under certain patents and patent applications that we
exclusively  license  from  a  third  party.  The  patents  and  patent  applications  relate  to  the  use  of  baricitinib,  Lilly’s  JAK
inhibitor, to treat alopecia areata. Under the license agreement, Lilly has agreed to pay us an upfront payment, regulatory
and  commercial  milestone  payments,  anniversary  payments,  and  a  low  single-digit  royalty  calculated  as  a  percentage  of
Lilly’s net sales of baricitinib for the treatment of alopecia areata. We have separate contractual obligations under which we
have  agreed  to  pay  to  third  parties  an  amount  equal  to  any  regulatory  and  commercial  milestone  payments  we  receive
under the Lilly license agreement, as well as a portion of the upfront consideration and a portion of the royalties we may
receive under the license agreement.

 During  the  years  ended  December  31,  2023  and  2022,  respectively,  we  recorded  licensing  revenue  under  this

agreement of $12.7 million and $17.8 million from Lilly, a portion of which was payable to third parties.

Asset Purchase Agreement with EPI Health, LLC

In October 2019, we sold RHOFADE (oxymetazoline hydrochloride) cream, 1%, or RHOFADE, to EPI Health,

LLC, or EPI Health, pursuant to an asset purchase agreement. In July 2023, EPI Health filed a voluntary petition for relief

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under  Chapter  11  of  the  United  States  Bankruptcy  Code.  Through  the  bankruptcy  process,  EPI  Health  and  its  parent
company, Novan, Inc., sold the RHOFADE assets to a third party, which excluded our asset purchase agreement with EPI
Health and the outstanding amounts due. The sale was approved by the bankruptcy court in September 2023.

As  a  result  of  the  bankruptcy  proceedings,  we  recorded  an  allowance  for  doubtful  accounts  resulting  in  $1.3
million of bad debt expense for the year ended December 31, 2023, representing all amounts that were due and outstanding
by EPI Health.

Agreement and Plan of Merger with Confluence

In 2017, we entered into an Agreement and Plan of Merger, or the Confluence Agreement, with Confluence Life
Sciences, Inc. (now known as Aclaris Life Sciences, Inc.), or Confluence, Aclaris Life Sciences, Inc., our wholly-owned
subsidiary, or Merger Sub, and Fortis Advisors LLC, as representative of the equity holders of Confluence.  Pursuant to the
terms  of  the  Confluence  Agreement,  Merger  Sub  merged  with  and  into  Confluence,  with  Confluence  surviving  as  our
wholly-owned subsidiary.

Under  the  Confluence  Agreement,  we  have  agreed  to  pay  the  former  Confluence  equity  holders  aggregate
remaining  contingent  consideration  of  up  to  $75.0  million  based  upon  the  achievement  of  specified  regulatory  and
commercial milestones set forth in the Confluence Agreement. In addition, we have agreed to pay the former Confluence
equity holders future royalty payments calculated as a low single-digit percentage of annual net sales, subject to specified
reductions, limitations and other adjustments, until the date that all of the patent rights for that product have expired, as
determined on a country-by-country and product-by-product basis or, in specified circumstances, ten years from the first
commercial sale of such product.  In addition to the payments described above, if we sell, license or transfer any of the
intellectual property acquired from Confluence pursuant to the Confluence Agreement to a third party, we will be obligated
to pay the former Confluence equity holders a portion of any consideration received from such sale, license or transfer in
specified circumstances.

Restructuring

In December 2023, our Board of Directors approved a reduction of our workforce by approximately 46%, which
we expect to be substantially completed by June 2024. This action was taken in order to streamline operations, reduce costs
and preserve capital. As a result, we terminated certain employees, or terminated employees, and gave notice to additional
employees,  or  noticed  employees,  who  were  asked  to  provide  transition  services  through  termination  dates  ranging
between one to thirteen months from the date notice was given. The terminated employees were entitled to receive cash
severance payments and other benefits. The noticed employees are entitled to receive cash severance payments and other
benefits, which are contingent upon providing additional services to us.

During the year ended December 31, 2023, we recorded a restructuring charge of $3.1 million which represents a
one-time  termination  benefit  for  impacted  employees  with  retention  periods  less  than  the  sixty-day  minimum  retention
period, which was triggered immediately upon either terminating or giving notice to the impacted employees. An estimated
charge  between  $1.9  million  and  $2.2  million  is  expected  to  be  incurred  for  additional  termination  costs,  including
severance and other benefits, over the next 12 months.

Components of Our Results of Operations

Revenue

Contract Research

We earn revenue from the provision of laboratory services. Contract research revenue is generally evidenced by
contracts with clients which are on an agreed upon fixed-price, fee-for-service basis and are generally billed on a monthly
basis in arrears for services rendered.

Licensing

Licensing revenue primarily consists of upfront consideration, royalties and milestone payments earned pursuant

to license and acquisition agreements with third parties, as described above.

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Other

Other revenue consists of amounts earned from the sub-sublease of our office space, which was terminated during

the year ended December 31, 2022.

Cost and Expenses

Cost of Revenue

Cost of revenue consists of the costs incurred in connection with the provision of contract research services. Cost

of revenue primarily includes:

● employee-related expenses, which include salaries, benefits and stock-based compensation;
● outsourced professional scientific services;
● depreciation of laboratory equipment;
● facility-related costs; and
● laboratory materials and supplies used to support the services provided.

Research and Development

Research  and  development  expenses  consist  of  expenses  incurred  in  connection  with  the  discovery  and

development of our drug candidates. These expenses primarily include:

● expenses incurred under agreements with contract research organizations, or CROs, as well as clinical trial
sites and consultants that conduct our clinical trials and preclinical studies, and investigator-initiated trials;

● manufacturing scale-up expenses and the cost of acquiring and manufacturing active pharmaceutical

ingredients and preclinical and clinical trial materials, including domestic technology transfer expenses;

● quality assurance and quality control costs;
● outsourced professional scientific development services;
● medical affairs expenses related to our drug candidates;
● employee-related expenses, which include salaries, benefits and stock-based compensation;
● expenses relating to regulatory activities, including filing fees paid to regulatory agencies; and
● laboratory materials and supplies used to support our research activities.

Research and development activities are central to our business model. Drug candidates in later stages of clinical
development generally have higher development costs than those in earlier stages of clinical development, primarily due to
the  increased  size  and  duration  of  later-stage  clinical  trials.  We  expect  to  continue  to  incur  research  and  development
expenses in the near term as we continue the development of our drug candidates and pursue our discovery programs.  We
expense research and development costs as incurred. Our direct research and development expenses primarily consist of
external  costs  including  fees  paid  to  CROs,  consultants,  clinical  trial  sites,  regulatory  agencies  and  third  parties  that
manufacture our preclinical and clinical trial materials and are tracked on a program-by-program basis. We do not allocate
personnel costs or other indirect expenses to specific research and development programs.

The successful development of our drug candidates is highly uncertain. 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, or when,
if ever, material net cash inflows may commence from any of our drug candidates. This uncertainty is due to the numerous
risks  and  uncertainties  associated  with  the  duration  and  cost  of  clinical  trials,  which  vary  significantly  over  the  life  of  a
project as a result of many factors, including:

● the number of clinical sites included in the trials;
● the length of time required to enroll suitable subjects;
● the number of subjects that ultimately participate in the trials;
● the number of doses subjects receive;
● the duration of subject follow-up; and
● the results of our clinical trials.

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Our  expenditures  are  subject  to  additional  uncertainties,  including  the  preparation  of  regulatory  filings  for  our
drug candidates. We may obtain unexpected results from our clinical trials or other development activities. We may elect to
discontinue,  delay  or  modify  the  development,  including  clinical  trials,  of  some  drug  candidates  or  focus  on  others.  A
change  in  the  outcome  of  any  of  these  variables  with  respect  to  the  development  of  a  drug  candidate  could  mean  a
significant change in the costs and timing associated with the development of that drug candidate.  For example, if the FDA
or other regulatory authorities were to require us to conduct clinical trials beyond those that 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.

General and Administrative

General  and  administrative  expenses  consist  principally  of  salaries  and  related  costs,  including  stock-based
compensation, for personnel in executive, administrative, finance and legal functions. General and administrative expenses
also include facility-related costs, patent filing and prosecution costs, professional fees for legal, auditing and tax services,
investor relations costs, business development costs, insurance costs and travel expenses.

Licensing

Licensing  expenses  consist  of  third-party  contractual  obligations  incurred  under  license  and  acquisition

agreements with third parties, as described above.

Revaluation of Contingent Consideration

Revaluation  of  contingent  consideration  consists  of  changes  in  the  fair  value  of  our  contingent  consideration

liability between reporting dates.

Intangible Asset Impairment

Intangible asset impairment consists of changes to the fair value of our in-process research and development, or

IPR&D, intangible asset.

Other Income (Expense), Net

Other income (expense), net primarily consists of interest earned on our cash, cash equivalents and marketable

securities and in prior periods included interest expense related to debt obligations.

Critical Accounting Estimates

This  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  is  based  on  our  consolidated
financial statements which have been prepared in accordance with generally accepted accounting principles in the United
States. The preparation of our consolidated financial statements and related disclosures requires us to make estimates and
judgments 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 expenses during the reported period. We base our estimates on
historical  experience,  known  trends  and  events  and  various  other  factors  that  we  believe  to  be  reasonable  under  the
circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities
that are not readily apparent from other sources. We evaluate our estimates and judgments on an ongoing basis. Our actual
results may differ from these estimates under different assumptions or conditions.

While our significant accounting policies are described in more detail in the notes to our consolidated financial
statements appearing elsewhere in this Annual Report on Form 10-K, we believe that the following accounting policies are
those most critical to the judgments and estimates used in the preparation of our consolidated financial statements.

Intangible Assets

Our  intangible  assets  include  both  definite-lived  and  indefinite-lived  assets.  Our  definite-lived  intangible  assets

consist of a drug discovery platform acquired through the acquisition of Confluence. Definite-lived intangible assets are

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amortized over their estimated useful life based on the pattern over which the intangible assets are consumed or otherwise
used up. If that pattern cannot be reliably determined, the straight-line method of amortization is used. Our indefinite-lived
intangible assets consisted of an IPR&D drug candidate also acquired through the acquisition of Confluence. IPR&D assets
are  considered  indefinite-lived  until  the  completion  or  abandonment  of  the  associated  research  and  development  efforts.
The cost of IPR&D assets is either amortized over their estimated useful life beginning when the underlying drug candidate
is approved and launched commercially, or expensed immediately if development of the drug candidate is abandoned.

Definite-lived intangible assets are tested for impairment when events or changes in circumstances indicate that
the carrying value of the asset may not be recoverable.  Indefinite-lived intangible assets are tested for impairment at least
annually, which we perform during the fourth quarter, or when indicators of an impairment are present.  We recognize an
impairment loss when and to the extent that the estimated fair value of an intangible asset is less than its carrying value.
The fair value of an intangible asset is dependent on significant unobservable inputs including the estimated future cash
flows of the asset.

During  the  quarter  ended  December  31,  2023,  we  performed  an  impairment  analysis  on  the  IPR&D  intangible
asset due to our decision to discontinue further development of the drug candidate in immuno-inflammatory diseases. Our
impairment analysis resulted in a fair value of the IPR&D intangible asset which was less than the carrying value. As a
result, we recorded an impairment charge of $6.6 million, the full balance of the IPR&D intangible asset.

Contingent Consideration

We record a contingent consideration liability related to future potential payments resulting from the acquisition of
Confluence  based  upon  significant  unobservable  inputs  including  the  achievement  of  regulatory  and  commercial
milestones,  as  well  as  estimated  future  sales  levels  and  the  discount  rates  applied  to  calculate  the  present  value  of  the
potential  payments.  Significant  judgement  is  involved  in  determining  the  appropriateness  of  these  assumptions.  These
assumptions are considered Level 3 inputs. Revaluation of our contingent consideration liability can result from changes to
one or more of these assumptions. These assumptions are highly dependent on the outcome and timing of the development
of certain of our drug candidates. We evaluate the fair value estimate of our contingent consideration liability on a quarterly
basis with changes, if any, recorded as income or expense in our consolidated statement of operations. Any such changes
could have a material impact on our financial results.

The fair value of contingent consideration is estimated using a probability-weighted expected payment model for
regulatory milestone payments and a Monte Carlo simulation model for commercial milestone and royalty payments and
then applying a risk-adjusted discount rate to calculate the present value of the potential payments. Significant assumptions
used  in  our  estimates  include  the  probability  of  achieving  regulatory  milestones  and  commencing  commercialization,
which  are  based  on  an  asset’s  current  stage  of  development  and  a  review  of  existing  clinical  data.  The  probability  of
success  assumption  was  35%  at  December  31,  2023.  Additionally,  estimated  future  sales  levels  and  the  risk-adjusted
discount  rate  applied  to  the  potential  payments  are  also  significant  assumptions  used  in  calculating  the  fair  value.  The
discount rate ranged between 7.3% and 8.6% depending on the year of each potential payment.

During the year ended December 31, 2023, we removed estimated sales of zunsemetinib for moderate to severe
rheumatoid arthritis, moderate to severe hidradenitis suppurativa and moderate to severe psoriatic arthritis, following our
decision  to  discontinue  further  development  of  our  MK2  inhibitor  programs  in  immuno-inflammatory  diseases.  These
changes, partially offset by lower discount rates resulting from lower risk-free rates and changes in credit spreads, as well
as the passage of time, resulted in an overall decrease of $26.9 million during the year ended December 31, 2023.

Stock-Based Compensation

We measure the compensation expense of stock-based awards granted to employees and directors using the grant
date fair value of the award. We have issued stock options and restricted stock unit, or RSU, awards with service-based
vesting conditions, as well as with performance-based vesting conditions. We have not issued awards that include market-
based conditions. For service-based awards, we recognize stock-based compensation expense on a straight-line basis over
the requisite service period. For performance-based awards, we recognize stock-based compensation expense on a straight-
line basis over the requisite service period beginning in the period that it becomes probable the performance conditions will
occur. At each balance sheet date, we evaluate whether any performance conditions related to a performance-based award
have  changed.  The  effect  of  any  change  in  performance  conditions  would  be  recognized  as  a  cumulative  catch-up
adjustment in the period such change occurs, and any remaining unrecognized compensation expense would be recognized

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on a straight-line basis over the remaining requisite service period. The impact of forfeitures is recognized in the period in
which they occur.

We  measure  the  compensation  expense  of  stock-based  awards  granted  to  consultants  using  the  grant  date  fair
value  of  the  award.  We  recognize  compensation  expense  over  the  period  during  which  services  are  rendered  by  the
consultant.

We estimate the fair value of each stock option grant using the Black-Scholes option-pricing model.  Historically,
we  estimated  expected  volatility  based  on  historical  volatility  of  a  set  of  peer  companies,  which  are  publicly  traded.
Starting in 2022, we estimated expected volatility based on our stock price's historical volatility, as we determined that we
had adequate historical data regarding the volatility of our own publicly-traded stock price. The expected term of our stock
options has been determined using the “simplified” method for awards that qualify as “plain vanilla” options. The expected
term  of  stock  options  we  granted  to  non-employees  is  equal  to  the  contractual  term  of  the  option  award.  The  risk-free
interest rate is determined by reference to the U.S. Treasury yield curve in effect at the time of grant of the award for time
periods approximately equal to the expected term of the award.  We use an expected dividend yield of zero because we
have not paid cash dividends to date and have no intention of paying cash dividends in the future.

The fair value of each RSU is measured using the closing price of our common stock on the date of grant.

Results of Operations

For discussion on financial condition and results of operations pertaining to the year ended December 31, 2022
compared to the year ended December 31, 2021, see our Annual Report on Form 10-K for the year ended December 31,
2022, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Comparison of Years Ended December 31, 2023 and 2022

(In thousands)
Revenues:
     Contract research

Licensing
Other
Total revenue

Costs and expenses:
Cost of revenue
Research and development
General and administrative
Licensing
Revaluation of contingent consideration
Intangible asset impairment

Total costs and expenses
Loss from operations

Other income, net
Loss before income taxes
Income tax benefit
Net loss

70

Year Ended December 31, 

2023

2022

     Change

$

 3,035
 28,214
 —
 31,249

$

 4,395
 25,100
 257
 29,752

$

 (1,360)
 3,114
 (257)
 1,497

 3,423
 98,384
 32,412
 14,658
 (26,900)
 6,629
   128,606
   (97,357)

 4,023
 77,813
 25,133
 7,937
 4,700
 —
   119,606
   (89,854)

 8,509
 (88,848)
 (367)

 2,946
 (86,908)
 —

$  (88,481) $  (86,908) $

 (600)
 20,571
 7,279
 6,721
 (31,600)
 6,629
 9,000
 (7,503)

 5,563
 (1,940)
 (367)
 (1,573)

    
    
    
 
 
 
 
 
 
 
 
 
 
 
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Revenue

Contract Research

Contract research revenue was $3.0 million and $4.4 million for the years ended December 31, 2023 and 2022,
respectively, and was comprised of fees earned from the provision of laboratory services to our clients. The decrease was
driven  by  lower  overall  hours  billed,  partially  due  to  an  increased  focus  on  internal  development  programs,  which  was
offset by a higher average billing rate.

Licensing

Licensing  revenue  was  $28.2  million  and  $25.1  million  for  the  years  ended  December  31,  2023  and  2022,
respectively. The increase was primarily driven by the upfront payment received under the Sun Pharma agreement during
the  year  ended  December  31,  2023  and  an  increase  in  royalties.  This  increase  was  partially  offset  by  both  the  upfront
payment received under the Lilly agreement and the upfront payment received under the Pediatrix agreement during the
year ended December 31, 2022.

Cost and Expenses

Cost of Revenue

Cost of revenue was $3.4 million and $4.0 million for the years ended December 31, 2023 and 2022, respectively,
and in each case related to providing laboratory services to our clients. Changes in cost of revenue generally correlate to
changes in contract research revenue.  Cost of revenue decreased during the year ended December 31, 2023 due to lower
variable costs resulting from the decrease in hours billed, partially offset by an increase in fixed overhead costs, including
personnel-related costs.

Research and Development

The following table summarizes our research and development expenses by drug candidate or, for unallocated

expenses, by type:

(In thousands)

Zunsemetinib
ATI-1777
ATI-2138
ATI-2231
Discovery
Other research and development
Personnel
Stock-based compensation

Total research and development expenses

Zunsemetinib

Year Ended
December 31, 

2023

$  36,461     $
 12,129
 12,143
 1,575
 6,881
 3,417
 18,977
 6,801
$  98,384

$

2022
 28,133    $
 12,113
 7,704
 4,828
 4,564
 1,564
 15,162
 3,745
 77,813

$

Change

 8,328
 16
 4,439
 (3,253)
 2,317
 1,853
 3,815
 3,056
 20,571

The increase in expenses for zunsemetinib during the year ended December 31, 2023 compared to the year ended
December 31, 2022 was primarily due to higher costs associated with drug candidate manufacturing and costs associated
with clinical development activities for a Phase 2b trial in subjects with rheumatoid arthritis, which initiated in December
2021  and  was  completed  in  November  2023.  The  increase  was  partially  offset  by  a  decrease  in  costs  associated  with
clinical development activities for a Phase 2a trial in subjects with hidradenitis suppurativa, which initiated in December
2021 and was completed in March 2023.

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ATI-1777

ATI-1777 expenses were higher during the year ended December 31, 2023 compared to the year ended December
31, 2022 primarily due to an increase in costs associated with a Phase 2b clinical trial in subjects with atopic dermatitis,
which  initiated  in  May  2022  and  was  completed  in  December  2023.  The  increase  was  partially  offset  by  lower  costs
associated with drug candidate manufacturing and other preclinical development activities.

ATI-2138

The  increase  in  expenses  for  ATI-2138  during  the  year  ended  December  31,  2023  compared  to  the  year  ended
December  31,  2022  was  primarily  due  to  an  increase  in  clinical  development  expenses  associated  with  a  Phase  1  MAD
trial, as well as an increase in preclinical development activities and ancillary studies.

ATI-2231

The  decrease  in  expenses  for  ATI-2231  during  the  year  ended  December  31,  2023  compared  to  the  year  ended
December 31, 2022 was primarily due to preclinical development activities, IND-enabling studies and drug manufacturing
in the prior period as we progressed the program toward IND submission in 2023.

Discovery

The  increase  in  expenses  related  to  discovery  during  the  year  ended  December  31,  2023  compared  to  the  year
ended December 31, 2022 was due to continued investment in our discovery-stage programs as we progressed programs
toward candidate selection.

Personnel and stock-based compensation

The  increase  in  personnel  and  stock-based  compensation  expenses  during  the  year  ended  December  31,  2023
compared to the year ended December 31, 2022 was primarily due to an increase in costs associated with higher average
headcount,  compensation  adjustments,  equity  awards  granted  in  2023  and  severance  expenses  that  included  the  cost  of
termination benefits given to employees that were involuntarily terminated during the year ended December 31, 2023.  This
increase  was  partially  offset  by  higher  forfeiture  credits  during  the  year  ended  December  31,  2023  as  a  result  of  our
restructuring in 2023 compared to the year ended December 31, 2022.

General and Administrative

The following table summarizes our general and administrative expenses:

Year Ended
December 31, 

(In thousands)

Personnel
Professional and legal fees
Facility and support services
Other general and administrative
Stock-based compensation
Bad debt

Total general and administrative expenses

Personnel and stock-based compensation

$

2023
 8,016     $
 5,534
 3,023
 2,240
 12,285
 1,314
$  32,412

2022
 6,028    $
 4,319
 2,302
 2,341
 10,143
 —
$  25,133

$

Change

 1,988
 1,215
 721
 (101)
 2,142
 1,314
 7,279

The aggregate increase in personnel and stock-based compensation expenses during the year ended December 31,
2023  compared  to  the  year  ended  December  31,  2022  was  primarily  due  to  an  increase  in  costs  associated  with  higher
average headcount prior to our restructuring, compensation adjustments, and equity awards granted in 2023.  

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Professional and legal fees

 The increase in professional and legal fees, including accounting, investor relations and corporate communication
costs, during the year ended December 31, 2023 compared to the year ended December 31, 2022 was primarily driven by
an increase in patent and accounting related expenses.

Facility and support services

The increase in facility and support services, including general office expenses, information technology costs and
other expenses, during the year ended December 31, 2023 compared to the year ended December 31, 2022 was primarily
driven by an increase in rent expense due to leasing additional office and laboratory space during the year ended December
31, 2023, as well as an increase in information technology costs.

Bad debt

Bad debt expenses were related to our determination that amounts due to us as of December 31, 2023 pursuant to
the asset purchase agreement with EPI Health are uncertain as a result of the bankruptcy filing by EPI Health, which was
initiated in July 2023.

Licensing

The  increase  in  licensing  expenses  during  the  year  ended  December  31,  2023  compared  to  the  year  ended
December 31, 2022 was primarily driven by amounts payable to third parties during the year ended December 31, 2023 in
connection with amounts earned under the Sun Pharma agreement and an increase in amounts payable to third parties in
connection with amounts earned under the Lilly agreement.

Revaluation of Contingent Consideration

The  fair  value  of  our  contingent  consideration  liability  decreased  during  the  year  ended  December  31,  2023
mainly  due  to  the  removal  of  estimated  sales  of  zunsemetinib  for  moderate  to  severe  rheumatoid  arthritis,  moderate  to
severe  hidradenitis  suppurativa  and  moderate  to  severe  psoriatic  arthritis,  following  our  decision  to  discontinue  further
development of our MK2 inhibitor programs in immuno-inflammatory diseases. This decrease was partially offset by lower
discount rates resulting from lower risk-free rates and changes in credit spreads, as well as the passage of time.

The fair value of our contingent consideration liability increased during the year ended December 31, 2022 mainly

due to an increase in future sales level assumptions for zunsemetinib and the passage of time.

Intangible Asset Impairment

During  the  quarter  ended  December  31,  2023,  we  performed  an  impairment  analysis  on  the  IPR&D  intangible
asset due to our decision to discontinue further development of the drug candidate for immuno-inflammatory diseases. Our
impairment analysis resulted in a fair value of the IPR&D intangible asset which was less than the carrying value. As a
result, we recorded an impairment charge of $6.6 million, the full balance of the IPR&D intangible asset.

Other Income, net

Other income, net increased during the year ended December 31, 2023 compared to the year ended December 31,

2022 primarily due to higher interest income on investment portfolio balances.

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Liquidity and Capital Resources

Overview

Since  our  inception,  we  have  incurred  net  losses  and  negative  cash  flows  from  our  operations.  Prior  to  our
acquisition of Confluence in August 2017, we did not generate any revenue. We have financed our operations over the last
several  years  primarily  through  sales  of  our  equity  securities  and  incurring  indebtedness  in  the  form  of  loans  from
commercial lenders. We may engage in additional debt and equity financing transactions in order to raise funds.  We may
receive royalties and milestone payments from third-party licensing and acquisition agreements. In addition, to the extent
we are able to consummate transactions with potential third-party partners to further develop, obtain marketing approval
for  and/or  commercialize  our  drug  candidates,  we  may  receive  upfront  payments,  milestone  payments  or  royalties  from
such arrangements that would increase our liquidity.

As  of  December  31,  2023,  we  had  cash,  cash  equivalents  and  marketable  securities  of  $181.9  million.  Cash  in
excess  of  immediate  requirements  is  invested  in  accordance  with  our  investment  policy,  primarily  with  a  view  towards
liquidity and capital preservation.  

We  currently  have  no  ongoing  material  financing  commitments,  such  as  lines  of  credit  or  guarantees,  that  are
expected  to  affect  our  liquidity,  other  than  our  contingent  obligations  under  the  Confluence  Agreement,  which  is
summarized above under “Overview—Acquisition and License Agreements,” and our lease obligations.

Equity Financing

Sale of Common Stock under At-the-Market Facility

In  April  2023,  we  sold  3.4  million  shares  of  our  common  stock  for  aggregate  gross  proceeds  of  $27.5  million,
pursuant to a sales agreement with SVB Securities LLC and Cantor Fitzgerald & Co., as sales agents, dated February 23,
2023. We paid selling commissions of $0.8 million in connection with the sale.

In  April  2022,  we  sold  4,838,709  shares  of  our  common  stock  for  aggregate  gross  proceeds  of  $75.0  million,
pursuant to a sales agreement with SVB Securities LLC and Cantor Fitzgerald & Co., as sales agents, dated May 20, 2021.
We paid selling commissions and other fees of $2.2 million in connection with the sale.

Cash Flows

Cash  and  cash  equivalents  were  $39.9  million  as  of  December  31,  2023  compared  to  $45.3  million  as  of
December 31, 2022. We also had $142.0 million in short- and long-term marketable securities as of December 31, 2023
compared to $184.5 million as of December 31, 2022.

The sources and uses of cash that contributed to the change in cash and cash equivalents were:

(In thousands)
Cash and cash equivalents beginning balance
Net cash used in operating activities
Net cash provided by investing activities
Net cash provided by financing activities
Cash and cash equivalents ending balance

74

Year Ended
December 31, 

2023
 45,277
 (78,325)
 46,220
 26,706
 39,878

2022
 27,349
 (67,567)
 12,628
 72,867
 45,277

$

$

$

$

    
    
 
 
 
 
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Operating Activities

Cash flow related to operating activities was the result of:

(In thousands)
Net loss
Non-cash adjustments to reconcile net loss to net cash used in operating activities
Change in accounts payable and accrued expenses
Change in accounts receivable
Change in prepaid expenses and other assets
Net cash used in operating activities

Year Ended
December 31, 

2023
 (88,481)
 767
 10,518
 186
 (1,315)
 (78,325)

2022
 (86,908)
 20,536
 960
 139
 (2,294)
 (67,567)

$

$

$

$

Net cash used in operating activities increased for the year ended December 31, 2023 compared to the year ended
December 31, 2022 primarily as a result of higher net loss after adjusting for revaluation of contingent consideration. This
change  was  partially  offset  by  the  impairment  charge  related  to  the  IPR&D  intangible  asset  during  the  year  ended
December 31, 2023, as well as an increase in licensing expense accruals between periods.

The decrease in non-cash adjustments to reconcile net loss to net cash used in operating activities was mainly the
result of a gain in revaluation of contingent consideration during the year ended December 31, 2023 compared to a loss in
revaluation  of  contingent  consideration  during  the  year  ended  December  31,  2022.  The  gain  was  primarily  due  to  the
removal of estimated sales from zunsemetinib for moderate to severe rheumatoid arthritis, moderate to severe hidradenitis
suppurativa  and  moderate  to  severe  psoriatic  arthritis  following  our  decision  to  discontinue  further  development  of  our
MK2 inhibitor programs in immuno-inflammatory diseases. This was partially offset by lower discount rates resulting from
lower risk-free rates and changes in credit spreads, as well as the passage of time.

Investing Activities

Cash flow related to investing activities was the result of:

(In thousands)
Purchases of property and equipment
Purchases of marketable securities
Proceeds from sales and maturities of marketable securities
Net cash provided by investing activities

Year Ended
December 31, 

2023
 (1,309)
 (135,675)
 183,204
 46,220

$

$

2022

$

$

 (605)
   (164,753)
 177,986
 12,628

The change in net cash provided by investing activities for the year ended December 31, 2023 compared to the
year ended December 31, 2022 primarily resulted from higher sales and maturities of marketable securities during the year
ended December 31, 2023, and a reduction of purchases of marketable securities, which were higher during the year ended
December 31, 2022.

Financing Activities

Cash flow related to financing activities was the result of:

(In thousands)
Proceeds from issuance of common stock under the at-the-market sales agreement, net of 
issuance costs
Payments of employee withholding taxes related to restricted stock unit award vesting
Proceeds from exercise of employee stock options and the issuance of stock
Net cash provided by financing activities

Year Ended
December 31, 

2023

2022

$

$

 26,714
 (102)
 94
 26,706

$

$

 72,744
 (34)
 157
 72,867

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Net cash provided by financing activities decreased for the year ended December 31, 2023 compared to December

31, 2022 primarily due to larger proceeds in 2022 from sales under our at-the-market sales agreement.

Funding Requirements

We anticipate we will incur net losses in the near term as we continue the development of our drug candidates and
continue to discover and develop additional drug candidates. We may not be able to generate revenue from these programs
if,  among  other  things,  our  clinical  trials  are  not  successful,  the  FDA  does  not  approve  our  drug  candidates  currently  in
clinical  trials  when  we  expect,  or  at  all,  or  we  are  not  able  to  identify  and  consummate  transactions  with  third-party
partners to further develop, obtain marketing approval for and/or commercialize our drug candidates.  

Our primary uses of capital are, and we expect will continue to be, compensation and related expenses, research
and  development  expenses,  laboratory  and  related  supplies,  legal  and  other  regulatory  expenses,  and  administrative  and
overhead  costs.  Our  future  funding  requirements  will  be  heavily  determined  by  the  resources  needed  to  support  the
development of our drug candidates.

As a publicly traded company, we incur and will continue to incur significant legal, accounting and other similar
expenses. In addition, the Sarbanes-Oxley Act of 2002, as well as rules adopted by the SEC and the Nasdaq Stock Market
LLC, requires public companies to implement specified corporate governance practices that could increase our compliance
costs.

We believe our existing cash, cash equivalents and marketable securities are sufficient to fund our operating and
capital expenditure requirements for a period greater than 12 months from the date of issuance of our consolidated financial
statements that appear in Item 8 of this Annual Report on Form 10-K based on our current operating assumptions. We will
require additional capital to develop our drug candidates and to support our discovery efforts. Additional funds may not be
available on a timely basis, on commercially acceptable terms, or at all, and such funds, if raised, may not be sufficient to
enable us to continue to implement our long-term business strategy. Our ability to raise additional capital may be adversely
impacted by potential worsening global economic conditions caused by a variety of factors including geopolitical tensions,
rising interest rates, and inflationary pressures. If we are unable to raise sufficient additional capital or generate revenue
from transactions with potential third-party partners for the development and/or commercialization of our drug candidates,
we may need to substantially curtail our planned operations.  

We may raise additional capital through the sale of equity or debt securities. In such an event, our stockholders’
ownership  will  be  diluted,  and  the  terms  of  these  securities  may  include  liquidation  or  other  preferences  that  adversely
affect the rights of a holder of our common stock.

Because  of  the  numerous  risks  and  uncertainties  associated  with  research  and  development  of  pharmaceutical
drugs, we are unable to estimate the exact amount of our working capital requirements. Our funding requirements in the
near term will depend on many factors, including:

● the number and development requirements of the drug candidates that we may pursue;
● the  scope,  progress,  results  and  costs  of  preclinical  development,  laboratory  testing  and  conducting  preclinical

and clinical trials for our drug candidates;

● the costs, timing and outcome of regulatory review of our drug candidates;
● the extent to which we in-license or acquire additional drug candidates and technologies;
● the  costs  and  timing  of  preparing,  filing  and  prosecuting  patent  applications,  maintaining  and  enforcing  our

intellectual property rights and defending any intellectual property-related claims;

● our ability to identify and consummate transactions with third-party partners to further develop, obtain marketing

approval for and/or commercialize our drug candidates; and

● our ability to earn revenue as a result of licenses to, or partnerships or other arrangements with, third parties.

See “Risk Factors” for additional risks associated with our substantial capital requirements.

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Leases

We occupy space for our headquarters in Wayne, Pennsylvania under a lease agreement which has a term through
February 2029. We also occupy office and laboratory space in St. Louis, Missouri under a sublease agreement which has a
term through June 2029.

Our  aggregate  remaining  lease  payment  obligation  for  these  two  spaces  was  $4.6  million  as  of  December  31,

2023.

Agreement and Plan of Merger – Confluence

Under the Confluence Agreement, we agreed to pay the former Confluence equity holders aggregate remaining
contingent  consideration  of  up  to  $75.0  million  based  upon  the  achievement  of  specified  regulatory  and  commercial
milestones set forth in the Confluence Agreement. In addition, we have agreed to pay the former Confluence equity holders
future  royalty  payments  calculated  as  a  low  single-digit  percentage  of  annual  net  sales,  subject  to  specified  reductions,
limitations and other adjustments, until the date that all of the patent rights for that product have expired, as determined on
a country-by-country and product-by-product basis or, in specified circumstances, ten years from the first commercial sale
of such product.  In addition to the payments described above, if we sell, license or transfer any of the intellectual property
acquired from Confluence pursuant to the Confluence Agreement to a third party, we will be obligated to pay the former
Confluence  equity  holders  a  portion  of  any  consideration  received  from  such  sale,  license  or  transfer  in  specified
circumstances.

R&D Obligations

We  enter  into  contracts  in  the  normal  course  of  business  with  CROs,  contract  manufacturing  organizations  and
other service providers for clinical trials, preclinical studies and testing, manufacturing and other services and products for
operating purposes. These contracts generally provide for termination upon notice, and therefore we believe that our non-
cancelable obligations under these agreements are not material.

Segment Information

We  have  two  reportable  segments,  therapeutics  and  contract  research.  The  therapeutics  segment  is  focused  on
identifying and developing innovative therapies to address significant unmet needs for immuno-inflammatory diseases. The
contract research segment earns revenue from the provision of laboratory services.

Recently Issued Accounting Pronouncements

In November 2023, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or
ASU, No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” This standard
requires disclosure of significant segment expenses and other segment items by reportable segment. This ASU becomes
effective for annual periods beginning in 2024 and interim periods in 2025. We are assessing the impact of this ASU and
upon adoption expect that any impact would be limited to additional segment expense disclosures in the footnotes to the
our consolidated financial statements.

In December 2023, the FASB issued ASU No. 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax
Disclosures.” This standard enhances disclosures related to income taxes, including the rate reconciliation and information
on income taxes paid. This ASU becomes effective January 1, 2025. We are currently assessing the impact of this ASU.

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Item 7A. Quantitative and Qualitative Disclosures about Market Risk

Our  cash  equivalents  and  marketable  securities  consist  of  money  market  funds,  asset-backed  debt  securities,
commercial paper, corporate debt securities, foreign government agency debt securities, U.S.  government  debt  securities
and  U.S.  government  agency  debt  securities.  Our  primary  exposure  to  market  risk  is  interest  rate  sensitivity,  which  is
affected by changes in the general level of U.S. interest rates. Our marketable securities are subject to interest rate risk and
will  fall  in  value  if  market  interest  rates  increase.  However,  due  to  the  short-term  nature  and  low-risk  profile  of  our
investment portfolio, we do not expect that an immediate 10% change in market interest rates would have a material effect
on the fair market value of our investment portfolio.  We have the ability to hold our marketable securities until maturity,
and therefore we would not expect our operating results or cash flows to be affected to any significant degree by the effect
of a change in market interest rates on our investments.

Foreign currency risk

Foreign  currency  risk  is  the  risk  that  the  fair  value  or  future  cash  flows  of  a  financial  instrument  will  fluctuate
because of changes in exchange rates. Our primary exposure to currency risk is foreign government agency debt securities.
We  do  not  enter  into  any  derivative  financial  instruments  to  manage  our  exposure  to  foreign  currency  risk.  Due  to  the
conservative  nature  of  our  investment  portfolio  and  other  financial  instruments,  we  do  not  believe  an  immediate  10%
change in currency rates would have a material effect on the fair market value of our portfolio.

Inflation Risk

Inflation  generally  affects  us  by  increasing  our  cost  of  labor.  Although  inflation  has  increased  generally  in  the
United  States  in  recent  months,  we  do  not  believe  that  inflation  has  had  a  material  effect  on  our  business,  financial
condition or results of operations during the year ended December 31, 2023.

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Item 8. Financial Statements and Supplementary Data

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm (PCAOB ID 238)

Consolidated Balance Sheets as of December 31, 2023 and 2022

Consolidated Statements of Operations and Comprehensive Loss for the years ended December 31, 2023, 2022 and

2021

Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2023, 2022 and 2021

Consolidated Statements of Cash Flows for the years ended December 31, 2023, 2022 and 2021

Notes to Consolidated Financial Statements

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85

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Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of Aclaris Therapeutics, Inc.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of Aclaris Therapeutics, Inc. and its subsidiaries (the
“Company”) as of December 31, 2023 and 2022, and the related consolidated statements of operations and comprehensive
loss, of stockholders’ equity and of cash flows for each of the three years in the period ended December 31, 2023,
including the related notes (collectively referred to as the “consolidated financial statements”). We also have audited the
Company's internal control over financial reporting as of December 31, 2023, based on criteria established in Internal
Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway
Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial
position of the Company as of December 31, 2023 and 2022, and the results of its operations and its cash flows for each of
the three years in the period ended December 31, 2023 in conformity with accounting principles generally accepted in the
United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control
over financial reporting as of December 31, 2023, based on criteria established in Internal Control - Integrated Framework
(2013) issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal
control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting,
included in Management’s Report on Internal Control over Financial Reporting appearing under Item 9A. Our
responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's internal
control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company
Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in
accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange
Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and
perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material
misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained
in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material
misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that
respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and
disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and
significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial
statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control
over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and
operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other
procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our
opinions.

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 (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the
transactions and dispositions of the assets of the company; (ii) 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 (iii) provide reasonable assurance regarding prevention or timely

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detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the
financial statements.

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

Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial
statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts
or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging,
subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the
consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below,
providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Fair Value of the Contingent Consideration Liability

As described in Notes 2 and 3 to the consolidated financial statements, the Company’s contingent consideration balance
was $6.2 million as of December 31, 2023. The Company records a contingent consideration liability related to future
potential payments resulting from the acquisition of Confluence based upon significant unobservable inputs including the
achievement of regulatory and commercial milestones, as well as estimated future sales levels and the discount rates
applied to calculate the present value of the potential payments.   Management evaluates fair value estimates of the 
contingent consideration liability on a quarterly basis using a probability-weighted expected payment model for regulatory 
milestone payments and a Monte Carlo simulation model for commercial milestone and royalty payments and then 
applying a risk-adjusted discount rate to calculate the present value of the potential payment. Changes in the fair value of 
the contingent consideration are recorded as income or expense in the Company’s consolidated statement of operations and 
comprehensive loss. Significant assumptions used in management’s estimates include the probability of achieving 
regulatory milestones and commencing commercialization, which are based upon an asset’s current stage of development 
and review of existing clinical data.

The principal considerations for our determination that performing procedures relating to the fair value of the contingent
consideration liability is a critical audit matter are (i) the significant judgment by management when developing the fair
value estimate, which in turn led to (ii) a high degree of auditor judgment, subjectivity and effort in performing procedures
and evaluating management’s significant assumptions related to the probability of achieving regulatory milestones and
commencing commercialization. In addition, the audit effort involved the use of professionals with specialized skill and 
knowledge.     

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our
overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls
relating to management’s contingent consideration evaluation, including controls over the valuation of the Company’s
contingent consideration liability. These procedures also included, among others, (i) testing management’s process for 
developing the fair value of the contingent consideration liability, (ii) evaluating the appropriateness of the probability-
weighted expected payment and Monte Carlo simulation valuation models, (iii) testing the completeness and accuracy of 
the underlying data used in the models, and (iv) evaluating the reasonableness of the significant assumptions used by 
management related to the probability of achieving regulatory milestones and commencing commercialization. Evaluating 
management’s assumptions related to the probability of achieving regulatory milestones and commencing 
commercialization involved evaluating whether the assumptions were reasonable considering the agreements associated 
with the transaction as well as the consistency with industry information, the stage of product development and whether the 
assumptions were consistent with evidence obtained in other areas of the audit.  Professionals with specialized skill and 
knowledge were used to assist in the evaluation of the Company’s probability-weighted expected payment and Monte 
Carlo simulation valuation models. 

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/s/PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
February 27, 2024

We have served as the Company’s auditor since 2015.

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ACLARIS THERAPEUTICS, INC.
CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share data)

     December 31, 

2023

December 31, 
2022

Assets
Current assets:

Cash and cash equivalents
Short-term marketable securities
Accounts receivable, net
Prepaid expenses and other current assets

Total current assets

Marketable securities
Property and equipment, net
Intangible assets
Other assets

Total assets

Liabilities and Stockholders’ Equity
Current liabilities:

Accounts payable
Accrued expenses
Current portion of lease liabilities
Discontinued operations
Total current liabilities

Other liabilities
Contingent consideration
Deferred tax liability

Total liabilities

Commitments and contingencies (Note 17)
Stockholders’ Equity:

$

$

$

39,878
79,228
298
9,452
128,856
62,771
1,620
269
3,889
197,405

8,878
19,446
426
2,202
30,952
3,074
6,200

—  

40,226

$

45,277
172,294
484
13,495
231,550
12,242
1,099
6,973
2,732
$ 254,596

$

10,351
8,701
684
2,202
21,938
1,570
33,100
367
56,975

Preferred stock, $0.00001 par value; 10,000,000 shares authorized and no shares issued
or outstanding at December 31, 2023 and December 31, 2022
Common stock, $0.00001 par value; 200,000,000 and 100,000,000 shares authorized at
December 31, 2023 and December 31, 2022, respectively; 70,894,889 and 66,688,647
shares issued and outstanding at December 31, 2023 and December 31, 2022,
respectively
Additional paid‑in capital
Accumulated other comprehensive loss
Accumulated deficit

Total stockholders’ equity
Total liabilities and stockholders’ equity

—

—

1
928,080
(106)
(770,796)
157,179
197,405

1
880,832
(897)
(682,315)
197,621
$ 254,596

$

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

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ACLARIS THERAPEUTICS, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(In thousands, except share and per share data)

Revenues:

Contract research
Licensing
Other
Total revenue

Costs and expenses:
Cost of revenue
Research and development
General and administrative
Licensing
Revaluation of contingent consideration
Intangible asset impairment

Total costs and expenses
Loss from operations

Other income (expense), net
Loss before income taxes
Income tax benefit
Net loss

Net loss per share, basic and diluted
Weighted average common shares outstanding, basic and diluted

Other comprehensive loss:

Unrealized gain (loss) on marketable securities, net of tax of $0
Foreign currency translation adjustment
Total other comprehensive gain (loss)

Comprehensive loss

Year Ended
December 31, 
2022

2023

$

$

3,035
28,214
—
31,249

$

4,395
25,100
257
29,752

3,423
98,384
32,412
14,658
(26,900)
6,629
128,606
(97,357)

4,023
77,813
25,133
7,937
4,700
—
119,606
(89,854)

8,509
(88,848)
(367)
(88,481) $

2,946
(86,908)
—
(86,908) $

$

(1.27) $

$
  69,808,855

  65,213,944

(1.33) $

2021

5,830
809
122
6,761

4,713
43,813
23,619
—
24,339
—
96,484
(89,723)

(1,142)
(90,865)
—
(90,865)

(1.60)
56,730,583

$

$

$

791
—
791
(87,690) $

(673) $
—
(673)
(87,581) $

(229)
99
(130)
(90,995)

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

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ACLARIS THERAPEUTICS, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands, except share data)

Balance at December 31, 2020

Issuance of common stock in connection with exercise of stock
options and warrants and vesting of restricted stock units
Issuance of common stock in connection with public offerings,
net of offering costs of $15,910
Unrealized loss on marketable securities
Foreign currency translation adjustment
Stock-based compensation expense
Net loss  

Balance at December 31, 2021

Issuance of common stock in connection with exercise of stock
options and vesting of restricted stock units
Issuance of common stock under at-the-market sales agreement,
net of offering costs of $2,341
Unrealized loss on marketable securities
Stock-based compensation expense
Net loss  

Balance at December 31, 2022

Issuance of common stock in connection with exercise of stock
options and vesting of restricted stock units
Issuance of common stock under at-the-market sales agreement,
net of offering costs of $826
Unrealized gain on marketable securities
Stock-based compensation expense
Net loss  

Balance at December 31, 2023

Common Stock
Par
   Value   

  Shares 
45,109,314 $ — $

Additional
Paid‑in
Capital

542,286 $

Accumulated
Other

Total

Comprehensive Accumulated Stockholders’  
Deficit
(504,542) $

Equity

(94) $

37,650

Loss

1,714,269

—

(1,574)

—

—  

(1,574)

14,404,863
—
—
—
—

  61,228,446 $

1
—
—
—
—
1 $

238,199
—
—
14,060
—
792,971 $

—
(229)
99
—
—
(224) $

—
—  
—
—
(90,865)
(595,407) $

238,200
(229)
99
14,060
(90,865)
197,341

621,492

—

163

—

—

163

4,838,709
—
—
—

66,688,647 $

—
—
—
—
1 $

72,659
—
15,039
—
880,832 $

—
(673)
—
—
(897) $

—
—
—
(86,908)
(682,315) $

72,659
(673)
15,039
(86,908)
197,621

806,242

—

(8)

—

—

(8)

3,400,000
—
—
—

70,894,889 $

—
—
—
—
1 $

26,714
—
20,542
—
928,080 $

—
791
—
—
(106) $

—
—
—
(88,481)
(770,796) $

26,714
791
20,542
(88,481)
157,179

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

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ACLARIS THERAPEUTICS, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

Cash flows from operating activities:

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

Depreciation and amortization
Stock-based compensation expense
Revaluation of contingent consideration
Loss on extinguishment of debt
Intangible asset impairment charge
Deferred taxes

Changes in operating assets and liabilities:

Accounts receivable
Prepaid expenses and other assets
Accounts payable
Accrued expenses

Net cash used in operating activities

Cash flows from investing activities:
Purchases of property and equipment
Purchases of marketable securities
Proceeds from sales and maturities of marketable securities

Net cash provided by (used in) investing activities

Cash flows from financing activities:

Year Ended
December 31, 
2022

2021

2023

$

(88,481)

$

(86,908)

$

(90,865)

797
15,039
4,700
—
—
—

139
(2,294)
368
592
(67,567)

(605)
(164,753)
177,986
12,628

923
14,060
24,339
752
—
—

149
(5,617)
3,655
470
(52,134)

(308)
(235,153)
67,829
(167,632)

—

238,200

863
20,542
(26,900)
—
6,629
(367)

186
(1,315)
(1,473)
11,991
(78,325)

(1,309)
(135,675)
183,204
46,220

—

26,714
—
(102)
94
26,706
(5,399)
45,277
39,878

Proceeds from issuance of common stock in connection with public offerings, net of issuance costs
Proceeds from issuance of common stock under the at-the-market sales agreement, net of issuance
costs
Repayment of debt
Payments of employee withholding taxes related to restricted stock unit award vesting
Proceeds from exercise of employee stock options and the issuance of stock

Net cash provided by financing activities

Net (decrease) increase in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period

Supplemental disclosure of non-cash investing and financing activities:

Additions to property and equipment included in accounts payable

$

$

72,744
—
(34)
157
72,867
17,928
27,349
45,277

$

—
(11,483)
(3,124)
1,459
225,052
5,286
22,063
27,349

143

$

$

— $

24

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

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ACLARIS THERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Organization and Nature of Business

Overview

Aclaris  Therapeutics,  Inc.  was  incorporated  under  the  laws  of  the  State  of  Delaware  in  2012.  In  August  2017,
Confluence  Life  Sciences,  Inc.  (now  known  as  Aclaris  Life  Sciences,  Inc.)  (“Confluence”)  was  acquired  by  Aclaris
Therapeutics,  Inc.  and  became  a  wholly  owned  subsidiary  thereof.  Aclaris  Therapeutics,  Inc.  and  its  wholly  owned
subsidiaries are referred to collectively as the “Company.”  

The  Company  is  a  clinical-stage  biopharmaceutical  company  focused  on  developing  novel  drug  candidates  for
immuno-inflammatory diseases. The Company’s proprietary KINect drug discovery platform combined with its preclinical
development  capabilities  allows  the  Company  to  identify  and  advance  potential  drug  candidates  that  it  may  develop
independently or in collaboration with third parties. In addition to identifying and developing its novel drug candidates, the
Company is pursuing strategic alternatives, including identifying and consummating transactions with third-party partners,
to  further  develop,  obtain  marketing  approval  for  and/or  commercialize  its  novel  drug  candidates.  The  Company  also
provides contract research services to third parties enabled by its early-stage research and development expertise.

Liquidity

The  Company’s  consolidated  financial  statements  have  been  prepared  on  the  basis  of  continuity  of  operations,
realization  of  assets  and  the  satisfaction  of  liabilities  in  the  ordinary  course  of  business.   As  of  December  31,  2023,  the
Company  had  cash,  cash  equivalents  and  marketable  securities  of  $181.9  million  and  an  accumulated  deficit  of  $770.8
million.  Since  inception,  the  Company  has  incurred  net  losses  and  negative  cash  flows  from  its  operations.  Prior  to  the
acquisition  of  Confluence  in  August  2017,  the  Company  had  never  generated  revenue.  There  can  be  no  assurance  that
profitable  operations  will  ever  be  achieved,  and,  if  achieved,  will  be  sustained  on  a  continuing  basis.  In  addition,
development activities, including clinical and preclinical testing of the Company’s drug candidates, will require significant
additional  financing.  The  future  viability  of  the  Company  is  dependent  on  its  ability  to  successfully  develop  its  drug
candidates  and  to  generate  revenue  from  identifying  and  consummating  transactions  with  third-party  partners  to  further
develop, obtain marketing approval for and/or commercialize its development assets or to raise additional capital to finance
its  operations.  The  Company  will  require  additional  capital  to  develop  its  drug  candidates  and  to  support  its  discovery
efforts.

Additional funds may not be available on a timely basis, on commercially acceptable terms, or at all, and such
funds, if raised, may not be sufficient to enable the Company to continue to implement its long-term business strategy. The
Company's  ability  to  raise  additional  capital  may  be  adversely  impacted  by  potentially  worsening  global  economic
conditions caused by a variety of factors including geopolitical tensions, rising interest rates and inflationary pressures. If
the Company is unable to raise sufficient additional capital or generate revenue from transactions with potential third-party
partners for the development and/or commercialization of its drug candidates, it may need to substantially curtail planned
operations.  The  Company’s  failure  to  raise  capital  as  and  when  needed  could  have  a  negative  impact  on  its  financial
condition and ability to pursue its business strategies.

In  accordance  with  Accounting  Standards  Codification  (“ASC”)  Subtopic  205-40,  Disclosure  of  Uncertainties
about an Entity’s Ability to Continue as a Going Concern, the Company evaluated whether there are conditions and events,
considered in the aggregate, that raise substantial doubt about the Company’s ability to continue as a going concern within
one year after the date that its consolidated financial statements are issued.  As of the report date, the Company does not
believe  that  substantial  doubt  exists  about  its  ability  to  continue  as  a  going  concern.  The  Company  believes  its  existing
cash, cash equivalents and marketable securities are sufficient to fund its operating and capital expenditure requirements
for a period greater than 12 months from the date of issuance of these consolidated financial statements.

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2. Summary of Significant Accounting Policies

Basis of Presentation

The accompanying consolidated financial statements have been prepared in conformity with generally accepted
accounting principles in the United States (“GAAP”).  The consolidated financial statements of the Company include the
accounts of the operating parent company, Aclaris Therapeutics, Inc., and its wholly owned subsidiaries. All intercompany
transactions have been eliminated. Based upon the Company’s revenue, the Company believes that gross profit does not
provide  a  meaningful  measure  of  profitability  and,  therefore,  has  not  included  a  line  item  for  gross  profit  on  the
consolidated statement of operations.

Reclassifications

Certain prior year amounts have been reclassified to conform to the current year financial statement presentation.

Discontinued Operations

In September 2019, the Company announced the completion of a strategic review and its decision to refocus its

resources on its immuno-inflammatory development programs and to actively seek partners for its commercial products.

As of December 31, 2023 and 2022, the Company had $2.2 million in accrued expenses reported as discontinued

operations in the Company’s consolidated balance sheet.

Use of Estimates

The  preparation  of  financial  statements  in  conformity  with  GAAP  requires  management  to  make  estimates  and
assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the
date of the financial statements and the reported amounts of expenses during the reporting periods. Significant estimates
and  assumptions  reflected  in  these  financial  statements  include,  but  are  not  limited  to,  contingent  consideration  and  the
valuation  of  stock-based  awards.  Estimates  are  periodically  reviewed  in  light  of  changes  in  circumstances,  facts  and
experience.  As of the date of issuance of these financial statements, the Company is not aware of any specific event or
circumstance that would require an update to its estimates, assumptions and judgments or revise the carrying value of its
assets or liabilities. Actual results could differ from the Company’s estimates.

Revenue Recognition

The Company accounts for revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers.
Under ASC Topic 606, revenue is recognized when a customer obtains control of promised goods or services in an amount
that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services.

To determine revenue recognition in accordance with ASC Topic 606, the Company performs the following five
steps: (i) identify the contract(s) with a customer, (ii) identify the performance obligations in the contract, (iii) determine
the  transaction  price,  (iv)  allocate  the  transaction  price  to  the  performance  obligations  in  the  contract,  and  (v)  recognize
revenue  when  (or  as)  performance  obligations  are  satisfied.   At  contract  inception,  the  Company  assesses  the  goods  or
services promised within a contract with a customer to identify the performance obligations, and to determine if they are
distinct. The Company recognizes the revenue that is allocated to each distinct performance obligation when (or as) that
performance  obligation  is  satisfied.  The  Company  only  recognizes  revenue  when  collection  of  the  consideration  it  is
entitled to under a contract with a customer is probable.

Contract Research

The  Company  earns  contract  research  revenue  from  the  provision  of  laboratory  services.  Contract  research
revenue is generally evidenced by contracts with clients which are on an agreed upon fixed-price, fee-for-service basis and
are  generally  billed  on  a  monthly  basis  in  arrears  for  services  rendered.    Revenue  related  to  these  contracts  is  generally
recognized as the laboratory services are performed, based upon the rates specified in the contracts.  Under ASC Topic 606,
the Company elected to apply the “right to invoice” practical expedient when recognizing contract research revenue

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and as such, recognizes revenue in the amount which it has the right to invoice. ASC Topic 606 also provides an optional
exemption, which the Company has elected to apply, from disclosing remaining performance obligations when revenue is
recognized  from  the  satisfaction  of  the  performance  obligation  in  accordance  with  the  “right  to  invoice”  practical
expedient.

Licensing Revenue

Licenses  of  Intellectual  Property  –  The  Company  recognizes  revenue  received  from  non-refundable,
upfront fees related to the licensing of intellectual property when the intellectual property is determined to be distinct from
the other performance obligations identified in the arrangement, the license has been transferred to the customer, and the
customer is able to use and benefit from the license. 

Milestone and Royalty Payments – The Company considers any future potential milestones and sales-
based  royalties  to  be  variable  consideration.  The  Company  recognizes  revenue  from  development,  regulatory  and
anniversary milestone payments as they are achieved. The Company recognizes revenue from commercial milestones and
royalty payments as the sales occur.

Cash Equivalents

The Company considers all short-term, highly liquid investments with original maturities of three months or less
at acquisition date to be cash equivalents. Cash equivalents, which have consisted of money market funds and commercial
paper, are stated at fair value.

Marketable Securities

Marketable securities with original maturities of greater than three months and remaining maturities of less than
one year from the balance sheet date are classified as short-term. Marketable securities with remaining maturities of greater
than one year from the balance sheet date are classified as long-term.

The  Company  classifies  all  marketable  securities  as  available-for-sale  securities.  The  Company’s  marketable
securities  are  measured  and  reported  at  fair  value  using  either  quoted  prices  in  active  markets  for  identical  securities  or
quoted prices in markets that are not active for identical or similar securities. Unrealized gains and losses are reported as a
separate component of stockholders’ equity. The cost of securities sold is determined on a specific identification basis, and
realized  gains  and  losses,  if  any,  are  included  in  other  expense,  net  within  the  consolidated  statement  of  operations  and
comprehensive loss. If any adjustment to fair value reflects a decline in the value of the investment, the Company considers
available evidence to evaluate the extent to which the decline is “other than temporary” and reduces the investment to fair
value through a charge to the statement of operations and comprehensive loss.

Property and Equipment

Property and equipment are stated at cost less accumulated depreciation. Depreciation expense is recognized using
the straight-line method over the useful life of the asset. Computer equipment is depreciated over three years. Laboratory
equipment  is  depreciated  over  three  to  five  years.  Furniture  and  fixtures  are  depreciated  over  five  years.  Leasehold
improvements  are  depreciated  over  the  shorter  of  the  lease  term  or  their  useful  life.  Expenditures  for  repairs  and
maintenance  of  assets  are  charged  to  expense  as  incurred.  Upon  retirement  or  sale,  the  cost  and  related  accumulated
depreciation of assets disposed of are removed from the accounts and any resulting gain or loss is included in loss from
continuing operations.

Impairment of Long-Lived Assets

Long-lived  assets  consist  of  property  and  equipment.  Long-lived  assets  to  be  held  and  used  are  tested  for
recoverability whenever events or changes in business circumstances indicate that the carrying amount of the assets may
not be fully recoverable. Factors that the Company considers in deciding when to perform an impairment review include
significant underperformance of the business in relation to expectations, significant negative industry or economic trends
and  significant  changes  or  planned  changes  in  the  use  of  the  assets.  If  an  impairment  review  is  performed  to  evaluate  a
long-lived asset for recoverability, the Company compares forecasts of undiscounted cash flows expected to result from the
use and eventual disposition of the long-lived asset to its carrying value. An impairment loss would be recognized

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when estimated undiscounted future cash flows expected to result from the use of an asset are less than its carrying amount.
The  impairment  loss  would  be  based  on  the  excess  of  the  carrying  value  of  the  impaired  asset  over  its  fair  value,
determined based on discounted cash flows.

Intangible Assets

Intangible assets include both definite-lived and indefinite-lived assets. Definite-lived intangible assets consist of
a drug discovery platform the Company acquired through the acquisition of Confluence. Definite-lived intangible assets are
amortized over their estimated useful life based on the pattern over which the intangible assets are consumed or otherwise
used  up.  If  that  pattern  cannot  be  reliably  determined,  the  straight-line  method  of  amortization  is  used.  Indefinite-lived
intangible  assets  consisted  of  an  in-process  research  and  development  (“IPR&D”)  drug  candidate  acquired  through  the
acquisition  of  Confluence.  IPR&D  assets  are  considered  indefinite-lived  until  the  completion  or  abandonment  of  the
associated research and development efforts. The cost of IPR&D is either amortized over its estimated useful life beginning
when the underlying drug candidate is approved and launched commercially, or expensed immediately if development of
the drug candidate is abandoned or otherwise impaired.

Definite-lived intangible assets are tested for impairment when events or changes in circumstances indicate that
the carrying value of the asset may not be recoverable.  Indefinite-lived intangible assets are tested for impairment at least
annually, which the Company performs during the fourth quarter, or when indicators of an impairment are present.  The
Company recognizes impairment losses when and to the extent that the estimated fair value of an intangible asset is less
than its carrying value.

During  the  quarter  ended  December  31,  2023,  the  Company  performed  an  impairment  analysis  on  the  IPR&D
intangible  asset  due  to  the  Company’s  decision  to  discontinue  further  development  of  the  drug  candidate  in  immuno-
inflammatory diseases. The Company’s impairment analysis resulted in a fair value of the IPR&D intangible asset which
was less than the carrying value. As a result, the Company recorded an impairment charge of $6.6 million, the full balance
of the IPR&D intangible asset.

Leases

Leases represent a company’s right to use an underlying asset and a corresponding obligation to make payments to
a  lessor  for  the  right  to  use  those  assets.  The  Company  evaluates  leases  at  their  inception  to  determine  if  they  are  an
operating lease or a finance lease. A lease is accounted for as a finance lease if it meets one of the following five criteria:
the lease has a purchase option that is reasonably certain of being exercised, the present value of the future cash flows are
substantially all of the fair market value of the underlying asset, the lease term is for a significant portion of the remaining
economic  life  of  the  underlying  asset,  the  title  to  the  underlying  asset  transfers  at  the  end  of  the  lease  term,  or  if  the
underlying asset is of such a specialized nature that it is expected to have no alternative uses to the lessor at the end of the
term.  Leases that do not meet the finance lease criteria are accounted for as an operating lease.

The  Company  recognizes  assets  and  liabilities  for  leases  at  their  inception  based  upon  the  present  value  of  all
payments  due  under  the  lease.  The  Company  uses  an  incremental  borrowing  rate  to  determine  the  present  value  of
operating leases. The Company determines incremental borrowing rates by referencing collateralized borrowing rates for
debt instruments with terms similar to the respective lease.  The Company recognizes expense for operating leases on a
straight-line  basis  over  the  term  of  each  lease.  The  Company  includes  estimates  for  any  residual  value  guarantee
obligations under its leases in lease liabilities recorded on its consolidated balance sheet.

Right-of-use assets are included in other assets on the Company’s consolidated balance sheet for operating leases.
Obligations  for  lease  payments  are  included  in  current  portion  of  lease  liabilities  and  other  liabilities  on  the  Company’s
consolidated balance sheet for operating leases.  

Contingent Consideration

The Company records a contingent consideration liability related to future potential payments resulting from the
acquisition  of  Confluence  based  upon  significant  unobservable  inputs  including  the  achievement  of  regulatory  and
commercial milestones, as well as estimated future sales levels and the discount rates applied to calculate the present value
of  the  potential  payments.  Significant  judgement  is  involved  in  determining  the  appropriateness  of  these  assumptions.
 These assumptions are considered Level 3 inputs. Revaluation of the contingent consideration liability can

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result from changes to one or more of these assumptions. The Company evaluates the fair value estimate of the contingent
consideration  liability  on  a  quarterly  basis  with  changes,  if  any,  recorded  as  income  or  expense  in  the  consolidated
statement of operations.

The fair value of contingent consideration is estimated using a probability-weighted expected payment model for
regulatory milestone payments and a Monte Carlo simulation model for commercial milestone and royalty payments and
then applying a risk-adjusted discount rate to calculate the present value of the potential payments. Significant assumptions
used  in  the  Company’s  estimates  include  the  probability  of  achieving  regulatory  milestones  and  commencing
commercialization, which are based on an asset’s current stage of development and a review of existing clinical data. The
probability of success assumption was 35% at December 31, 2023. Additionally, estimated future sales levels and the risk-
adjusted discount rate applied to the potential payments are also significant assumptions used in calculating the fair value.
The discount rate ranged between 7.3% and 8.6% depending on the year of each potential payment.

Research and Development Costs

Research and development costs are expensed as incurred. Research and development expenses include salaries,
stock-based compensation and benefits of employees, and other operational costs related to the Company’s research and
development  activities,  including  depreciation  expenses  and  the  cost  of  research  and  development  contracts  which  the
Company has entered into with outside vendors to conduct both preclinical studies and clinical trials.  Significant judgment
and estimates are made in determining the amount of research and development costs recognized in each reporting period.
The Company analyzes the progress of its preclinical studies and clinical trials, completion of milestone events, invoices
received  and  contracted  costs  when  estimating  research  and  development  costs.  Actual  results  could  differ  from  the
Company’s  estimates.  The  Company’s  historical  estimates  for  research  and  development  costs  have  not  been  materially
different from the actual costs.

Stock-Based Compensation

The  Company  measures  the  compensation  expense  of  stock-based  awards  granted  to  employees  and  directors
using  the  grant  date  fair  value  of  the  award.  The  Company  has  issued  stock  options  and  restricted  stock  unit  (“RSU”)
awards with service-based vesting conditions, as well as with performance-based vesting conditions. The Company has not
issued  awards  that  include  market-based  conditions.  For  service-based  awards  the  Company  recognizes  stock-based
compensation  expense  on  a  straight-line  basis  over  the  requisite  service  period,  which  is  typically  four  years.  For
performance-based  awards  the  Company  recognizes  stock-based  compensation  expense  on  a  straight-line  basis  over  the
requisite service period beginning in the period that it becomes probable the performance conditions will occur. At each
balance sheet date, the Company evaluates whether any performance conditions related to a performance-based award have
changed. The effect of any change in performance conditions would be recognized as a cumulative catch-up adjustment in
the period such change occurs, and any remaining unrecognized compensation expense would be recognized on a straight-
line basis over the remaining requisite service period. The impact of forfeitures is recognized in the period in which they
occur.

The Company measures the compensation expense of stock-based awards granted to consultants using the grant
date  fair  value  of  the  award.  The  Company  recognizes  compensation  expense  over  the  period  during  which  services  are
rendered by the consultant.

The Company classifies stock-based compensation expense in its statement of operations and comprehensive loss
in  the  same  manner  in  which  the  award  recipient’s  payroll  costs  are  classified  or  in  which  the  award  recipients’  service
payments are classified.

The fair value of each stock option grant is estimated on the date of grant using the Black-Scholes option-pricing
model.  Historically,  the  Company  estimated  expected  volatility  based  on  historical  volatility  of  a  set  of  peer  companies,
which are publicly traded. Starting in 2022, the Company estimated expected volatility based on its stock price's historical
volatility, as the Company determined that it had adequate historical data regarding the volatility of its own publicly-traded
stock  price.  The  expected  term  of  the  Company’s  stock  options  has  been  determined  using  the  “simplified”  method  for
awards that qualify as “plain vanilla” options. The expected term of stock options granted to non-employees is equal to the
contractual term of the option award. The risk-free interest rate is determined by reference to the U.S. Treasury yield curve
in effect at the time of grant of the award for time periods approximately equal to the expected term of the award.

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The Company uses an expected dividend yield of zero based on the fact that the Company has never paid cash dividends
and does not expect to pay cash dividends in the future.

The fair value of each RSU is measured using the closing price of the Company’s common stock on the date of

grant.

Patent Costs

All  patent  related  costs  incurred  in  connection  with  filing  and  prosecuting  patent  applications  are  expensed  as
incurred  due  to  the  uncertainty  about  the  recovery  of  the  expenditure.  Amounts  incurred  are  classified  as  general  and
administrative expenses.

Income Taxes

The Company accounts for income taxes using the asset and liability method, which requires the recognition of
deferred  tax  assets  and  liabilities  for  the  expected  future  tax  consequences  of  events  that  have  been  recognized  in  the
financial statements or in the Company’s tax returns. Deferred taxes are determined based on the difference between the
financial  statement  and  tax  basis  of  assets  and  liabilities  using  enacted  tax  rates  in  effect  in  the  years  in  which  the
differences are expected to reverse. Changes in deferred tax assets and liabilities are recorded in the provision for income
taxes. The Company assesses the likelihood that its deferred tax assets will be recovered from future taxable income and, to
the extent it believes, based upon the weight of available evidence, that it is more likely than not that all or a portion of the
deferred  tax  assets  will  not  be  realized,  a  valuation  allowance  is  established  through  a  charge  to  income  tax  expense.
Potential for recovery of deferred tax assets is evaluated by estimating the future taxable profits expected and considering
prudent and feasible tax planning strategies.

The  Company  accounts  for  uncertainty  in  income  taxes  recognized  in  the  consolidated  financial  statements  by
applying  a  two-step  process  to  determine  the  amount  of  tax  benefit  to  be  recognized.  First,  the  tax  position  must  be
evaluated to determine the likelihood that it will be sustained upon external examination by the taxing authorities. If the tax
position is deemed more likely than not to be sustained, the tax position is then assessed to determine the amount of benefit
to  recognize  in  the  consolidated  financial  statements.  The  amount  of  the  benefit  that  may  be  recognized  is  the  largest
amount that has a greater than 50% likelihood of being realized upon ultimate settlement. The provision for income taxes
includes the effects of any resulting tax reserves and unrecognized tax benefits that are considered appropriate, as well as
the related net interest and penalties.

Comprehensive Loss

Comprehensive loss includes net loss as well as other changes in stockholders’ equity that result from transactions
and  economic  events  other  than  those  with  stockholders.  Comprehensive  loss  is  primarily  comprised  of  net  loss  and
unrealized gains (losses) on marketable securities.

Net Loss per Share

Basic net loss per share is computed using the weighted average number of common shares outstanding during the
period.  Diluted  net  loss  per  share  is  computed  using  the  sum  of  the  weighted  average  number  of  common  shares
outstanding during the period, plus the weighted average number of potential shares of common stock from the assumed
exercise of stock options and warrants and the assumed vesting of RSUs, if dilutive. Since the Company was in a net loss
position, basic and diluted net loss per share was the same for each of the periods presented.

Fair Value Measurements

Certain assets and liabilities are carried at fair value under GAAP. Fair value is defined as the exchange price that
would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or
liability  in  an  orderly  transaction  between  market  participants  on  the  measurement  date.  Valuation  techniques  used  to
measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Financial

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assets and liabilities carried at fair value are to be classified and disclosed in one of the following three levels of the fair
value hierarchy, of which the first two are considered observable and the last is considered unobservable:

● Level 1 — Quoted prices in active markets for identical assets or liabilities.

● Level 2 — Observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for
similar  assets  or  liabilities,  quoted  prices  in  markets  that  are  not  active  for  identical  or  similar  assets  or
liabilities, or other inputs that are observable or can be corroborated by observable market data.

● Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to
determining  the  fair  value  of  the  assets  or  liabilities,  including  pricing  models,  discounted  cash  flow
methodologies and similar techniques.

The  Company’s  cash  equivalents,  marketable  securities  and  contingent  consideration  are  carried  at  fair  value,
determined according to the fair value hierarchy described above. The carrying value of the Company’s accounts payable
and accrued expenses approximate fair value due to the short-term nature of these liabilities.  

Concentration of Credit Risk and of Significant Suppliers

Financial  instruments  that  potentially  expose  the  Company  to  concentrations  of  credit  risk  consist  primarily  of
cash, cash equivalents and marketable securities. The Company holds all cash, cash equivalents and marketable securities
balances at three accredited financial institutions, the majority of which are in amounts that exceed or are not subject to
federally insured limits. The Company does not believe that it is subject to unusual credit risk beyond the normal credit risk
associated with commercial banking relationships.

The  Company  is  dependent  on  third-party  manufacturers  to  supply  drug  product,  including  all  underlying
components, for its research and development activities, including preclinical and clinical testing.  These activities could be
adversely affected by a significant interruption in the supply of active pharmaceutical ingredients or other components.

Segment Reporting

Operating  segments  are  components  of  a  company  for  which  separate  financial  information  is  available  and
evaluated regularly by the chief operating decision maker in assessing performance and deciding how to allocate resources.
The  Company  has  two  reportable  segments,  therapeutics  and  contract  research.  The  therapeutics  segment  is  focused  on
identifying and developing innovative therapies to address significant unmet needs for immuno-inflammatory diseases. The
contract research segment earns revenue from the provision of laboratory services. The Company does not report balance
sheet  information  by  segment  since  it  is  not  reviewed  by  the  chief  operating  decision  maker,  and  all  of  the  Company’s
tangible assets are held in the United States.

Recently Issued Accounting Pronouncements

In  November  2023,  the  Financial  Accounting  Standards  Board  (“FASB”)  issued  Accounting  Standards  Update
(“ASU”) No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” This standard
requires disclosure of significant segment expenses and other segment items by reportable segment. This ASU becomes
effective for annual periods beginning in 2024 and interim periods in 2025. The Company is assessing the impact of this
ASU  and  upon  adoption  expects  that  any  impact  would  be  limited  to  additional  segment  expense  disclosures  in  the
footnotes to the Company’s consolidated financial statements.

In December 2023, the FASB issued ASU No. 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax
Disclosures.” This standard enhances disclosures related to income taxes, including the rate reconciliation and information
on income taxes paid. This ASU becomes effective January 1, 2025. The Company is currently assessing the impact of this
ASU.

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3. Fair Value of Financial Assets and Liabilities

The following tables present information about the fair value measurements of the Company’s financial assets and

liabilities which are measured at fair value on a recurring and non-recurring basis, and indicate the level of the fair value
hierarchy utilized to determine such fair values:

(In thousands)
Assets:

Cash equivalents
Marketable securities

Total assets

Liabilities:

Contingent consideration

Total liabilities

(In thousands)
Assets:

Cash equivalents
Marketable securities

Total assets

Liabilities:

Contingent consideration

Total liabilities

     Level 1     

Level 2

     Level 3     

Total

December 31, 2023

$ 32,177
—
$ 32,177

$

— $ — $ 32,177
141,999
—
$ — $ 174,176

141,999
$ 141,999

$
$

— $
— $

— $ 6,200
— $ 6,200

$
$

6,200
6,200

     Level 1     

Level 2

     Level 3     

Total

December 31, 2022

$ 38,516
—
$ 38,516

$

— $

184,536
$ 184,536

$

— $ 38,516
184,536
—
— $ 223,052

$
$

— $
— $

— $ 33,100
— $ 33,100

$ 33,100
$ 33,100

As of December 31, 2023 and 2022, the Company’s cash equivalents consisted of a money market fund, which
was  valued  based  upon  Level  1  inputs.  The  Company’s  marketable  securities  as  of  December  31,  2023  consisted  of
commercial  paper  and  corporate  debt,  asset-backed  debt,  foreign  government  agency  debt  and  U.S.  government  agency
debt securities, which were valued based upon Level 2 inputs. The Company’s marketable securities as of December 31,
2022 consisted of commercial paper and corporate debt, asset-backed debt and U.S. government and government agency
debt securities, which were valued based upon Level 2 inputs.

In  determining  the  fair  value  of  its  Level  2  investments,  the  Company  relied  on  quoted  prices  for  identical
securities in markets that are not active. These quoted prices were obtained by the Company with the assistance of a third-
party  pricing  service  based  on  available  trade,  bid  and  other  observable  market  data  for  identical  securities.  During  the
years ended December 31, 2023 and 2022, there were no transfers into or out of Level 3.

The  decrease  in  contingent  consideration  of  $26.9  million  during  the  year  ended  December  31,  2023  primarily
resulted  from  the  removal  of  estimated  sales  of  zunsemetinib  for  moderate  to  severe  rheumatoid  arthritis,  moderate  to
severe hidradenitis suppurativa and moderate to severe psoriatic arthritis, following the Company’s decision to discontinue
further development of its MK2 inhibitor programs in immuno-inflammatory diseases. This decrease was partially offset
by lower discount rates resulting from lower risk-free rates and changes in credit spreads, as well as the passage of time.

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As of December 31, 2023 and 2022, the fair value of the Company’s available-for-sale marketable securities by

type of security was as follows:

December 31, 2023
Gross
Unrealized
Loss

Gross
Unrealized
Gain

Book
Value

Fair
Value

$ 52,362
12,345
10,953
4,698
61,750
$ 142,108

$

$

65
2
42
43
8
160

$

$

(142) $ 52,285
12,346
(1)
10,965
(30)
4,741
—
(96)
61,662
(269) $ 141,999

December 31, 2022
Gross
Unrealized
Loss

Gross
Unrealized
Gain

Book
Value

Fair
Value

$ 40,626
79,598
14,641
50,571
$ 185,436

$

$

— $
—
4
—
4

$

(251) $ 40,375
79,598
—
14,522
(123)
(530)
50,041
(904) $ 184,536

(In thousands)

Marketable securities:

Corporate debt securities(1)
Commercial paper
Asset-backed debt securities(2)
Foreign government agency debt securities(3)
U.S. government and government agency debt securities(4)

Total marketable securities
(1) Included in Corporate debt securities is $28.0 million with maturity dates between one and two years.

(2) Included in Asset-backed debt securities is $6.2 million with maturity dates between one and three years.

(3) Included in Foreign government agency debt securities is $4.7 million with a maturity date between one and two
years.
(4) Included in U.S. government and government agency debt securities is $23.9 million with maturity dates
between one and two years.

(In thousands)

Marketable securities:

Corporate debt securities(1)
Commercial paper
Asset-backed debt securities(2)
U.S. government and government agency debt securities(3)

Total marketable securities

(1) Included in Corporate debt securities is $4.8 million with maturity dates between one and five years.

(2) Included in Asset-backed debt securities is $2.4 million with maturity dates between one and five years.

(3) Included in U.S. government and government agency debt securities is $5.0 million with maturity dates
between one and five years.

4. Property and Equipment, Net

Property and equipment, net consisted of the following:

(In thousands)

Computer equipment
Lab equipment
Furniture and fixtures
Leasehold improvements
Property and equipment, gross
Accumulated depreciation
Property and equipment, net

December 31, 
2023

December 31, 
2022

    $

$

1,253     $
3,154
558
817
5,782
(4,162)
1,620

$

1,381
2,010
620
1,123
5,134
(4,035)
1,099

Depreciation  expense  was  $0.8  million,  $0.7  million  and  $0.8  million  for  the  years  ended  December  31,  2023,

2022 and 2021, respectively.

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5. Intangible Assets

Intangible assets consisted of the following:  

(In thousands, except years)

Other intangible assets
In-process research and development

Total intangible assets

Remaining
   Life (years)   
3.6
n/a

$

$

Gross Cost

Accumulated Amortization

December 31, 

December 31, 

December 31, 

December 31, 

2023

2022

2023

2022

751 $
—
751 $

751 $

6,629
7,380 $

482 $
—
482 $

407
—
407

Amortization expense was $75 thousand for each of the years ended December 31, 2023, 2022 and 2021.

As of December 31, 2023, estimated future amortization expense was as follows:

(In thousands)
2024
2025
2026
2027

Total

6. Accrued Expenses

Accrued expenses consisted of the following:

(In thousands)

Employee compensation expenses
Research and development expenses
Licensing expenses
Restructuring expenses (Note 15)
Other

Total accrued expenses

7. Debt

Loan and Security Agreement – Silicon Valley Bank

Year Ending
December 31,
75
75
75
44
269

$

December 31,  December 31, 

2023

3,910
6,661
5,478
3,112
285
19,446

$

$

2022

5,295
2,689
500
—
217
8,701

$

$

In March 2020, the Company entered into a Loan and Security Agreement with Silicon Valley Bank (“SVB”). The
Loan and Security Agreement provided for $11.0 million in term loans, of which the Company borrowed the entire amount
on  March  30,  2020.  In  connection  with  the  Loan  and  Security  Agreement,  the  Company  issued  to  SVB  a  warrant  to
purchase  up  to  460,251  shares  of  common  stock  (the  “Warrant”)  (see  Note  8).  The  proceeds  of  the  Loan  and  Security
Agreement were allocated to the term loan and Warrant using a relative fair value approach.

In  July  2021,  the  Company  repaid  in  full  the  $11.0  million  that  was  outstanding  under  the  Loan  and  Security
Agreement,  together  with  all  accrued  and  unpaid  interest  and  fees  as  of  the  payoff  date,  for  a  total  payment  of  $11.7
million. Following this repayment, all of the Company’s obligations under the Loan and Security Agreement are deemed to
be terminated, except as set forth in the agreement.

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8. Stockholders’ Equity

Preferred Stock

As  of  December  31,  2023  and  2022,  the  Company’s  amended  and  restated  certificate  of  incorporation  (the
“Charter”) authorized the Company to issue 10,000,000 shares of undesignated preferred stock.  There were no shares of
preferred stock outstanding as of December 31, 2023 and 2022.

Common Stock

On  June  1,  2023,  at  the  2023  Annual  Meeting  of  Stockholders,  the  Company’s  stockholders  approved  an
amendment  to  the  Charter  to  increase  the  authorized  number  of  shares  of  common  stock  from  100,000,000  shares  to
200,000,000 shares.  On June 1, 2023, the Company filed a Certificate of Amendment to the Charter with the Secretary of
State of the State of Delaware, which became effective upon filing.

As of December 31, 2023 and 2022, the Company’s Charter authorized the Company to issue 200,000,000 and
100,000,000 shares, respectively, of $0.00001 par value common stock. There were 70,894,889 and 66,688,647 shares of
common stock issued and outstanding as of December 31, 2023 and 2022, respectively.

Each share of common stock entitles the holder to one vote on all matters submitted to a vote of the Company’s
stockholders. Common stockholders are entitled to receive dividends, as may be declared by the board of directors, if any,
subject to any preferential dividend rights of any series of preferred stock that may be outstanding. No dividends have been
declared through December 31, 2023.

Warrants

The Warrant issued to SVB in March 2020 had an initial exercise price of $0.956 per share, subject to adjustment
as provided in the Warrant. The Warrant became immediately exercisable in full upon the funding of the term loan facility.
The Company assigned a fair value of $0.4 million to the Warrant using a Black-Scholes valuation methodology, and also
concluded that the Warrant was indexed to its own stock and therefore classified the Warrant as an equity instrument.  In
January 2021, SVB net exercised the Warrant in full, and the Company issued to SVB 388,119 shares of common stock.

January 2021 Public Offering

In January 2021, the Company closed a public offering in which it sold 6,306,271 shares of common stock at a
price to the public of $17.50 per share, for aggregate gross proceeds of $110.4 million. The Company paid underwriting
discounts and commissions of $6.6 million, and also incurred expenses of $0.4 million in connection with the offering.  As
a  result,  the  net  offering  proceeds  received  by  the  Company,  after  deducting  underwriting  discounts,  commissions  and
offering expenses, were $103.3 million.

June 2021 Public Offering

In June 2021, the Company closed a public offering in which it sold 8,098,592 shares of common stock at a price
to  the  public  of  $17.75  per  share,  for  aggregate  gross  proceeds  of  $143.8  million.  The  Company  paid  underwriting
discounts and commissions of $8.6 million, and also incurred expenses of $0.3 million in connection with the offering.  As
a  result,  the  net  offering  proceeds  received  by  the  Company,  after  deducting  underwriting  discounts,  commissions  and
offering expenses, were $134.9 million.

Sales of Common Stock Pursuant to At-The-Market Facility

In April 2022, the Company sold 4.8 million shares of its common stock for aggregate gross proceeds of $75.0
million, pursuant to a sales agreement with SVB Securities LLC and Cantor Fitzgerald & Co., as sales agents, dated May
20, 2021. The Company paid selling commissions and other fees of $2.3 million in connection with the sale.

In April 2023, the Company sold 3.4 million shares of its common stock for aggregate gross proceeds of $27.5
million,  pursuant  to  a  sales  agreement  with  SVB  Securities  LLC  and  Cantor  Fitzgerald  &  Co.,  as  sales  agents,  dated
February 23, 2023. The Company paid selling commissions of $0.8 million in connection with the sale.

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9. Stock-Based Awards

2015 Equity Incentive Plan

In September 2015, the Company’s board of directors adopted the 2015 Equity Incentive Plan (the “2015 Plan”),
and  the  Company’s  stockholders  approved  the  2015  Plan.  The  2015  Plan  became  effective  in  connection  with  the
Company’s initial public offering in October 2015. Beginning at the time the 2015 Plan became effective, no further grants
may be made under the Company’s 2012 Equity Compensation Plan, as amended and restated (the “2012 Plan”). The 2015
Plan provides for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock
awards, RSU awards, performance stock awards, cash-based awards and other stock-based awards. The number of shares
initially  reserved  for  issuance  under  the  2015  Plan  was  1,643,872  shares  of  common  stock.  The  number  of  shares  of
common stock that may be issued under the 2015 Plan will automatically increase on January 1 of each year ending on
January 1, 2025, in an amount equal to the lesser of (i) 4.0% of the shares of the Company’s common stock outstanding on
December 31 of the preceding calendar year or (ii) an amount determined by the Company’s board of directors. The shares
of  common  stock  underlying  any  awards  that  expire,  are  otherwise  terminated,  settled  in  cash  or  repurchased  by  the
Company under the 2015 Plan and the 2012 Plan will be added back to the shares of common stock available for issuance
under the 2015 Plan. As of December 31, 2023, 3,703,234 shares remained available for grant under the 2015 Plan. As of
January  1,  2024,  the  number  of  shares  of  common  stock  that  may  be  issued  under  the  2015  Plan  was  automatically
increased  by  2,835,795  shares.  The  Company  had  5,668,063  stock  options  and  1,521,940  RSUs  outstanding  as  of
December 31, 2023 under the 2015 Plan.

2017 Inducement Plan

In July 2017, the Company’s board of directors adopted the 2017 Inducement Plan (the “2017 Inducement Plan”).
The  2017  Inducement  Plan  is  a  non-stockholder  approved  stock  plan  adopted  pursuant  to  the  “inducement  exception”
provided under Nasdaq listing rules. The Company had 370,600 stock options outstanding as of December 31, 2023 under
the 2017 Inducement Plan. All shares of common stock that were eligible for issuance under the 2017 Inducement Plan
after October 1, 2018, including any shares underlying any awards that expire or are otherwise terminated, reacquired to
satisfy  tax  withholding  obligations,  settled  in  cash  or  repurchased  by  the  Company  in  the  future  that  would  have  been
eligible for re-issuance under the 2017 Inducement Plan, were retired. 

2012 Equity Compensation Plan

In August 2012, the Company’s board of directors adopted the 2012 Equity Incentive Plan (“2012 Plan”), and the
Company’s stockholders approved the 2012 Plan. Upon the 2015 Plan becoming effective, no further grants can be made
under the 2012 Plan. The Company had 380,792 stock options outstanding as of December 31, 2023 under the 2012 Plan.

Stock Option Valuation

The weighted average assumptions the Company used to estimate the fair value of stock options granted during

the years ended December 31, 2023, 2022 and 2021 were as follows:

Risk-free interest rate
Expected term (in years)
Expected volatility
Expected dividend yield

2023
3.55 %
6.2

Year Ended
December 31, 
2022
2.22 %
6.2
77.73 % 77.95 % 76.60 %
0 %

2021
0.92 %
6.2

0 %

0 %

The Company recognizes compensation expense for awards over their vesting period. Compensation expense for

awards includes the impact of forfeitures in the period when they occur.

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Stock Options

The following table summarizes stock option activity for the years ended December 31, 2023, 2022 and 2021:

Weighted
Average
Exercise
Price

     Weighted     
Average
Remaining
Contractual
Term
(in years)
6.8

(In thousands, except share and per share data and years)

Outstanding as of December 31, 2020

Granted
Exercised
Forfeited and cancelled

Outstanding as of December 31, 2021

Granted
Exercised
Forfeited and cancelled

Outstanding as of December 31, 2022

Granted
Exercised
Forfeited and cancelled

Outstanding as of December 31, 2023
Options vested and expected to vest as of December 31, 2023
Options exercisable as of December 31, 2023

Number
of Shares

2,871,498
1,068,100
(115,548)
(31,600)
3,792,450
2,548,750
(88,172)
(1,085,864)
5,167,164
2,241,550
(71,092)
(918,167)
6,419,455
6,419,455
2,879,529

$

$

$

$
$
$

15.16  
23.44
12.63
23.26
17.50  
14.40
1.78
18.44
16.04  
15.62
1.31
16.85
15.94
15.94  
16.55  

Aggregate
Intrinsic
Value

$

4,890

1,373

6.8

$ 13,710

1,120

7.2

$ 15,288

473

14
14
14

7.1
7.1
5.1

$
$
$

The weighted average grant date fair value of stock options granted during the years ended December 31, 2023,

2022 and 2021 was $10.98, $9.95, and $15.67 per share, respectively.

Restricted Stock Units

The following table summarizes RSU activity for the years ended December 31, 2023, 2022 and 2021.

Weighted

Average

Grant Date Aggregate

Number

Fair Value

Intrinsic

(In thousands, except share and per share data)
Outstanding as of December 31, 2020

Granted
Vested
Forfeited and cancelled

Outstanding as of December 31, 2021

Granted
Vested
Forfeited and cancelled

Outstanding as of December 31, 2022

Granted
Vested
Forfeited and cancelled

Outstanding as of December 31, 2023

99

of Shares
2,244,157 $
664,948
(1,340,042)
(72,117)
1,496,946 $
936,563
(533,212)
(379,567)
1,520,730 $
993,662
(745,279)
(247,173)
1,521,940 $

Value

Per Share
3.83
23.33

3.18 $ 31,492

10.36
12.75
14.43
11.61 $
13.40
14.02
15.17
11.72 $
15.15
15.72

7,943

8,262

    
    
 
 
 
 
 
 
 
 
 
 
 
 
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Stock-Based Compensation

Stock-based  compensation  expense  included  in  total  costs  and  expenses  on  the  consolidated  statement  of

operations included the following:

(In thousands)

Cost of revenue
Research and development
General and administrative

Total stock-based compensation expense

Year Ended
December 31, 
2022

2023

       $ 1,456     $ 1,151
3,745
  10,143
$ 15,039

6,801
  12,285
$ 20,542

2021

$

981
3,866
  9,213
$ 14,060

As of December 31, 2023, the Company had unrecognized stock-based compensation expense for stock options
and  RSUs  of  $30.0  million  and  $17.7  million,  respectively,  which  is  expected  to  be  recognized  over  weighted  average
periods of 2.7 years and 2.6 years, respectively.

10. Net Loss per Share

Basic and diluted net loss per share is summarized in the following table:

(In thousands, except for share and per share data)
Numerator:
Net loss
Denominator:

Year Ended
December 31, 
2022

2021

2023

$

(88,481)

$

(86,908)

$

(90,865)

Weighted average shares of common stock outstanding, basic and
diluted

Net loss per share, basic and diluted

  69,808,855
(1.27)
$

  65,213,944
(1.33)
$

  56,730,583
(1.60)
$

The Company’s potentially dilutive securities, which included stock options and RSUs, have been excluded from
the  computation  of  diluted  net  loss  per  share  since  the  effect  would  be  to  reduce  the  net  loss  per  share.  Therefore,  the
weighted average number of shares of common stock outstanding used to calculate both basic and diluted net loss per share
is the same. The following table presents potential shares of common stock excluded from the calculation of diluted net
loss  per  share  for  the  years  ended  December  31,  2023,  2022  and  2021.  All  share  amounts  presented  in  the  table  below
represent the total number outstanding as of December 31 of each year.

Options to purchase common stock
Restricted stock unit awards
Total potential shares of common stock

11. Leases

2023
6,419,455
1,521,940
7,941,395

December 31, 
2022

2021

5,167,164      3,792,450
1,496,946
1,520,730
5,289,396
6,687,894  

The  Company  has  operating  leases  for  office  space  and  laboratory  facilities.  The  components  of  lease  expense

were as follows:

(In thousands)

Operating lease expense

Year Ended
December 31, 
2022

2023

2021

    $

1,092     $

1,013    $

1,013

Rent  expense  was  $1.1  million  for  the  year  ended  December  31,  2023,  and  $1.0  million  for  each  of  the  years

ended December 31, 2022 and 2021, which was recognized on a straight-line basis over the term of the lease.

100

         
    
    
 
 
    
    
    
    
    
    
    
    
    
 
 
    
    
    
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Operating Leases

Agreements for Office and Laboratory Space

The Company had a sublease agreement pursuant to which it subleased 33,019 square feet of office space for its
headquarters in Wayne, Pennsylvania, which expired on October 31, 2023. In December 2020, the Company entered into a
sub-sublease agreement under which it sub-subleased 8,115 square feet to a third party. The sub-sublease was terminated in
December 2022.

In May 2023, the Company entered into a new lease agreement pursuant to which it leases 11,564 square feet of
office space for its headquarters in Wayne, Pennsylvania. The lease commenced on November 1, 2023 and has a term that
runs through February 2029.

In February 2019, the Company entered into a sublease agreement for 20,433 square feet of office and laboratory
space in St. Louis, Missouri. The lease commenced in June 2019 and has a term that runs through June 2029. In January
2023, the Company amended the sublease agreement to add an additional 6,261 square feet of office and laboratory space
effective February 2023, which term runs concurrently with the existing term.

Supplemental balance sheet information related to operating leases is as follows:  

(In thousands)
Operating Leases:
Gross cost
Accumulated amortization

Other assets

Current portion of lease liabilities
Other liabilities

Total operating lease liabilities

December 31, 

December 31, 

2023

2022

$

$

$

$

5,094
(1,235)
3,859

426
3,074
3,500

$

$

$

$

5,240
(2,560)
2,680

684
1,570
2,254

Amortization  expense  related  to  operating  lease  right-of-use  assets  and  accretion  of  operating  lease  liabilities
totaled  $0.8  million  for  the  year  ended  December  31,  2023,  and  $1.0  million  for  each  of  the  years  ended  December  31,
2022 and 2021.

Supplemental information related to operating leases is as follows:

(In thousands, except for years and percentages)
Supplemental Cash Flow Lease Information:
Operating cash flows from operating leases
Leased assets obtained in exchange for new operating lease liabilities

Year Ended

December 31, 
2022

2023

$
$

974
2,010

$
$

$
846
— $

2021

924
—

Weighted-Average Remaining Lease Term (in years):

Operating leases

Weighted-Average Discount Rate:

Operating leases

5.3

5.2

5.4

10.2 %

10.1 %

10.1 %

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Future minimum lease payments under operating lease agreements are as follows:

(In thousands)
Year Ending December 31, 

2024
2025
2026
2027
2028
Thereafter

Total undiscounted lease payments
Less: unrecognized interest
Total lease liability

12. Income Taxes

Operating
Leases

766
847
868
890
912
316
4,598
(1,098)
3,500

$

$

During the years ended December 31, 2023, 2022 and 2021, the Company did not record an income tax benefit for

net operating losses incurred in each year due to the uncertainty of realizing a benefit from those items.

Loss before income taxes is allocated as follows:

Year Ended December 31,

(In thousands)
U.S. operations
Foreign operations
Loss before income taxes

2023

2022
$ (88,848) $ (86,908) $ (90,865)
—
$ (88,848) $ (86,908) $ (90,865)

2021

—

—

A  reconciliation  of  the  U.S.  federal  statutory  income  tax  rate  to  the  Company’s  effective  income  tax  rate  is  as

follows:

Federal statutory income tax rate

State taxes, net of federal benefit
Impact of state rate changes
Research and development tax credits
Excess equity compensation tax benefit, net of officer limitation
Revaluation of contingent consideration
Non-deductible royalty payments
Change in deferred tax asset valuation allowance
Other

Effective income tax rate

102

Year Ended December 31,
2022
(21.0)%  
(2.3) 
—
(4.3) 
0.2
1.1
—
26.3

2023
(21.0)%  
(1.7) 
17.7
(5.9) 
0.6
(6.3)
4.3
11.7
0.2  
(0.4)%  

—  
— %  

2021
(21.0)%
(7.7)
—
(3.0)
(3.9)
5.6
—
30.0
—
— %

      
  
 
    
 
    
Table of Contents

Deferred tax liabilities, net consisted of the following:

(In thousands)
Deferred tax assets:

Net operating loss carryforwards
Capitalized start-up costs
Research and development tax credit carryforwards
Section 174 research and development capitalization
Capitalized research and development expense
Stock‑based compensation expense
Accrued compensation
Lease liabilities
Other

Total deferred tax assets

Deferred tax liabilities:

Property and equipment
Intangible asset
Right-to-use assets
Other

Total deferred tax liabilities

Valuation allowance

Deferred tax liabilities, net

December 31,

2023

2022

$

119,155
3,812
20,505
30,984
2,359
18,055
1,219
774
407
  197,270

$ 120,554
5,506
15,233
19,639
5,448
19,432
1,146
558
534
  188,050

(187)
—
(853)
(1,106)
(2,146)
  (195,124)

(137)
(1,576)
(651)
(1,365)
(3,729)
  (184,688)
(367)

$

— $

As of December 31, 2023, the Company had federal and state net operating loss (“NOL”) carryforwards of $464.8
million and $395.3 million, respectively, which will begin to expire in 2032. As of December 31, 2023, the Company also
had federal research and development tax credit carryforwards of $20.4 million which will begin to expire in 2032, and
state research and development tax credit carryforwards of $0.1 million which will begin to expire in 2022. Utilization of
the  NOLs  and  research  and  development  tax  credit  carryforwards  in  the  United  States  may  be  subject  to  a  substantial
annual  limitation  under  Section  382  of  the  Internal  Revenue  Code  of  1986  due  to  ownership  changes  that  may  have
occurred previously or that could occur in the future. These ownership changes may limit the amount of carryforwards that
can be utilized annually to offset future taxable income. In general, an ownership change, as defined by Section 382, results
from transactions increasing the ownership of certain stockholders or public groups in the stock of a corporation by more
than 50% over a three-year period. The Company has completed an analysis under Section 382 for NOLs generated from
July 13, 2012 through December 31, 2023.  Although the Company has experienced Section 382 ownership changes since
2012, the Company concluded that it should have sufficient ability to utilize NOLs accumulated during the periods tested.
The  Company  has  not  yet  determined  if  a  Section  382  ownership  change  has  occurred  after  December  31,  2023.  In
addition,  the  Company  may  experience  ownership  changes  in  the  future  as  a  result  of  subsequent  shifts  in  its  stock
ownership, some of which may be outside of the Company’s control.

The Company has evaluated the positive and negative evidence bearing upon its ability to realize the deferred tax
assets. The Company considered its history of cumulative net losses incurred since inception, its lack of substantial revenue
generated to date, and its forecasted future operating losses and concluded that it is more likely than not that the Company
will not realize the benefits of its deferred tax assets. Accordingly, a full valuation allowance has been established against
the deferred tax assets as of December 31, 2023 and 2022. The Company evaluates positive and negative evidence of its
ability to realize deferred tax assets at each reporting period.

Changes in the valuation allowance for deferred tax assets during the years ended December 31, 2023, 2022 and
2021,  which  related  primarily  to  the  increases  in  NOLs,  capitalized  research  and  development  costs,  and  research  and
development tax credit carryforwards, were as follows:

(In thousands)
Valuation allowance at beginning of year

Decreases recorded as benefit to income tax provision
Increases recorded to income tax provision

Valuation allowance as of end of year

103

2023

Year Ended December 31,
2022
$ (184,688)    $ (161,824)    $ (134,559)
—
(27,265)
$ (161,824)

(10,436)
$ (195,124)

(22,864)
$ (184,688)

—  

—  

2021

 
 
        
    
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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The  Company  files  tax  returns  as  prescribed  by  the  tax  laws  of  the  jurisdictions  in  which  it  operates.    In  the
normal  course  of  business,  the  Company  is  subject  to  examination  by  federal  and  state  jurisdictions,  where  applicable.
There are currently no pending income tax examinations. The Company’s tax years are still open under statute from 2021
to  the  present.  All  open  years  may  be  examined  to  the  extent  that  tax  credit  or  NOLs  are  used  in  future  periods.  The
Company’s  policy  is  to  record  interest  and  penalties  related  to  income  taxes  as  part  of  its  income  tax  provision.  The
Company has not recorded any amounts for unrecognized tax benefits as of December 31, 2023 and 2022.

13. Agreements Related to Intellectual Property

License Agreement – Sun Pharmaceutical Industries, Inc.

In  December  2023,  the  Company  entered  into  an  exclusive  patent  license  agreement  with  Sun  Pharmaceutical
Industries,  Inc.  (“Sun  Pharma”).  Under  the  license  agreement,  the  Company  granted  Sun  Pharma  exclusive  rights  under
certain patents that the Company exclusively licenses from a third party. The patents relate to the use of deuruxolitinib, Sun
Pharma’s  Janus  kinase  (“JAK”)  inhibitor,  or  other  isotopic  forms  of  ruxolitinib,  to  treat  alopecia  areata  or  androgenetic
alopecia. Under the license agreement, Sun Pharma has agreed to pay the Company an upfront payment, regulatory and
commercial milestone payments, and a mid single-digit tiered royalty calculated as a percentage of Sun Pharma’s net sales.
The Company has separate contractual obligations under which the Company has agreed to pay to third parties a portion of
the consideration it may receive under the license agreement.

Upon execution of the agreement, the Company received an upfront payment of $15.0 million from Sun Pharma, a

portion of which was payable to third parties.

License Agreement – Pediatrix Therapeutics, Inc.     

In November 2022, the Company entered into a license agreement with Pediatrix Therapeutics, Inc. (“Pediatrix”),
under which the Company granted Pediatrix the exclusive rights to develop, manufacture and commercialize ATI-1777 in
Greater  China.  Pediatrix  has  agreed  to  pay  the  Company  an  upfront  payment,  development,  regulatory  and  commercial
milestone payments, and a tiered royalty ranging from a low-to-high single digit percentage of net sales of ATI-1777 by
Pediatrix in Greater China. A portion of consideration received from Pediatrix is payable to the former Confluence equity
holders as described below.

Upon  execution  of  the  agreement,  the  Company  received  an  upfront  payment  of  $5.0  million  from  Pediatrix,  a

portion of which was payable to the former Confluence equity holders as described below.

License Agreement – Eli Lilly and Company

In August 2022, the Company entered into a non-exclusive patent license agreement with Eli Lilly and Company
(“Lilly”). Under the license agreement, the Company granted Lilly non-exclusive rights under certain patents and patent
applications that the Company exclusively licenses from a third party. The patents and patent applications relate to the use
of  baricitinib,  Lilly’s  JAK  inhibitor,  to  treat  alopecia  areata.  Under  the  license  agreement,  Lilly  has  agreed  to  pay  the
Company  an  upfront  payment,  regulatory  and  commercial  milestone  payments,  anniversary  payments,  and  a  low  single-
digit royalty calculated as a percentage of Lilly’s net sales of baricitinib for the treatment of alopecia areata. The Company
has separate contractual obligations under which the Company has agreed to pay to third parties an amount equal to any
regulatory and commercial milestone payments it receives under the Lilly license agreement, as well as a portion of the
upfront consideration and a portion of the royalties it may receive under the license agreement.

During  the  years  ended  December  31,  2023  and  2022,  the  Company  recorded  licensing  revenue  under  this

agreement of $12.7 million and $17.8 million, respectively, from Lilly, a portion of which was payable to third parties.

Asset Purchase Agreement – EPI Health, LLC

In October 2019, the Company sold RHOFADE (oxymetazoline hydrochloride) cream, 1% (“RHOFADE”) to EPI
Health, LLC (“EPI Health”) pursuant to an asset purchase agreement. In July 2023, EPI Health filed a voluntary petition
for  relief  under  Chapter  11  of  the  United  States  Bankruptcy  Code.  Through  the  bankruptcy  process,  EPI  Health  and  its
parent company, Novan, Inc., sold the RHOFADE assets to a third party, which excluded the Company’s asset

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purchase agreement with EPI Health and the outstanding amounts due. The sale was approved by the bankruptcy court in
September  2023.  As  a  result  of  the  bankruptcy  proceedings,  the  Company  recorded  an  allowance  for  doubtful  accounts
resulting in $1.3 million of bad debt expense for the year ended December 31, 2023, representing all amounts that were due
and outstanding by EPI Health.

Agreement and Plan of Merger – Confluence

In  August  2017,  the  Company  entered  into  an  Agreement  and  Plan  of  Merger,  pursuant  to  which  it  acquired
Confluence  (the  “Confluence  Agreement”).  Under  the  Confluence  Agreement,  the  Company  agreed  to  pay  the  former
Confluence  equity  holders  aggregate  remaining  contingent  consideration  of  up  to  $75.0  million  based  upon  the
achievement  of  specified  regulatory  and  commercial  milestones  set  forth  in  the  Confluence  Agreement.  In  addition,  the
Company  agreed  to  pay  the  former  Confluence  equity  holders  future  royalty  payments  calculated  as  a  low  single-digit
percentage of annual net sales, subject to specified reductions, limitations and other adjustments, until the date that all of
the patent rights for that product have expired, as determined on a country-by-country and product-by-product basis or, in
specified circumstances, ten years from the first commercial sale of such product.  In addition to the payments described
above, if the Company sells, licenses or transfers any of the intellectual property acquired from Confluence pursuant to the
Confluence  Agreement  to  a  third  party,  the  Company  will  be  obligated  to  pay  the  former  Confluence  equity  holders  a
portion of any consideration received from such sale, license or transfer in specified circumstances.

As  of  December  31,  2023  and  December  31,  2022,  the  balance  of  the  Company’s  contingent  consideration

liability was $6.2 million and $33.1 million, respectively (see Note 3).

14. Retirement Savings Plan

The Company has a defined contribution savings plan under Section 401(k) of the Internal Revenue Code. This
plan covers substantially all employees who meet minimum age and service requirements and allows participants to defer a
portion of their annual compensation on a pre-tax basis. Company contributions to the plan may be made at the discretion
of the Company’s board of directors. The Company has elected to match employee contributions to the 401(k) Plan up to
4%  of  the  employee’s  earnings,  subject  to  certain  limitations.  Company  contributions  under  the  401(k)  Plan  were  $0.7
million, $0.5 million and $0.3 million for the years ended December 31, 2023, 2022 and 2021, respectively.

15. Restructuring Charges

In  December  2023,  the  Company’s  board  of  directors  approved  a  reduction  of  the  Company’s  workforce  by
approximately  46%,  which  the  Company  expects  to  be  substantially  completed  by  June  2024.  This  action  was  taken  in
order to streamline operations, reduce costs and preserve capital. As a result, the Company terminated certain employees
(“terminated  employees”)  and  gave  notice  to  additional  employees  (“noticed  employees”)  who  were  asked  to  provide
transition services through termination dates ranging between one to thirteen months from the date notice was given.  The
terminated  employees  were  entitled  to  receive  cash  severance  payments  and  other  benefits.  The  noticed  employees  are
entitled to receive cash severance payments and other benefits, which are contingent upon providing additional services to
the Company.

During the year ended December 31, 2023, the Company recorded a restructuring charge of $3.1 million which
represents a one-time termination benefit for impacted employees with retention periods less than the sixty-day minimum
retention period, which was triggered immediately upon either terminating or giving notice to the impacted employees. Of
the  $3.1  million  of  expenses  incurred  during  the  year  ended  December  31,  2023,  $2.2  million,  $0.9  million  and  $19
thousand  were  recorded  in  research  and  development  expense,  general  and  administrative  expense  and  cost  of  revenue,
respectively, in the consolidated statement of operations and comprehensive loss.  The Company is expensing the cost of
cash  severance  payments,  other  benefits  and  annual  bonus  payments  for  noticed  employees  with  retention  periods  more
than the minimum retention period over their respective service terms.

16. Segment Information

The  Company  has  two  reportable  segments,  therapeutics  and  contract  research.  The  therapeutics  segment  is
focused on identifying and developing innovative therapies to address significant unmet needs for immuno-inflammatory
diseases and earns revenue through licensing of the Company’s intellectual property. The contract research segment earns
revenue from the provision of laboratory services. All intersegment revenue has been eliminated in the Company’s

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consolidated statement of operations. All customers and revenue pertaining to the Company’s segments are based in the
United States. Corporate and other includes general and administrative expenses as well as eliminations of intercompany
transactions.  The  Company  does  not  report  balance  sheet  information  by  segment  since  it  is  not  reviewed  by  the  chief
operating decision maker, and all of the Company’s tangible assets are held in the United States.  

The  Company’s  results  of  operations  by  segment  for  the  years  ended  December  31,  2023,  2022  and  2021  are

summarized in the tables below:

(In thousands)
Year Ended December 31, 2023
Revenue from external customers
Intercompany revenue
Cost of revenue
Research and development
General and administrative
Licensing
Revaluation of contingent consideration
Intangible asset impairment
Restructuring expense
Loss from operations

(In thousands)
Year Ended December 31, 2022
Revenue from external customers
Intercompany revenue
Cost of revenue
Research and development
General and administrative
Licensing
Revaluation of contingent consideration
Loss from operations

(In thousands)
Year Ended December 31, 2021
Revenue from external customers
Intercompany revenue
Cost of revenue
Research and development
General and administrative
Revaluation of contingent consideration
Loss from operations

17. Legal Proceedings

Securities Class Action

Therapeutics
28,214
$
—
—
97,188
—
14,658
(26,900)
6,629
2,202
(65,563)

$

Therapeutics
25,356
$
—
—
78,599
—
7,937
4,700
(65,880)

$

Therapeutics
932
$
—
—
44,259
—
24,339
(67,666)

$

Contract
Research
3,035
16,543
18,941
—
4,561
—
—
—
19
(3,943)

Contract
Research
4,396
12,609
15,847
—
3,505
—
—
(2,347)

Contract
Research
5,829
7,618
11,885
—
3,047
—
(1,485)

$

$

$

$

$

$

Corporate
and Other
$

— $

(16,543)
(15,537)
(1,006)
26,940
—
—
—
911
(27,851)

$

$

Corporate
and Other
$

— $

(12,609)
(11,824)
(786)
21,628
—
—
(21,627)

$

$

Corporate
and Other
$

— $

(7,618)
(7,172)
(446)
20,572
—
(20,572)

$

$

Total
Company
31,249
—
3,404
96,182
31,501
14,658
(26,900)
6,629
3,132
(97,357)

Total
Company
29,752
—
4,023
77,813
25,133
7,937
4,700
(89,854)

Total
Company
6,761
—
4,713
43,813
23,619
24,339
(89,723)

On July 30, 2019, plaintiff Linda Rosi (“Rosi”) filed a putative class action complaint captioned Rosi v. Aclaris
Therapeutics, Inc., et al. in the U.S. District Court for the Southern District of New York against the Company and certain
of  its  executive  officers.  On  September  5,  2019,  an  additional  plaintiff,  Robert  Fulcher  (“Fulcher”),  filed  a  substantially
identical putative class action complaint captioned Fulcher v. Aclaris Therapeutics, Inc., et al. in the same court against the
same defendants. On November 6, 2019, the court consolidated the Rosi and Fulcher actions (together, the “Consolidated
Securities Action”) and appointed Fulcher “lead plaintiff” for the putative class. The parties signed and filed a settlement
agreement  in  July  2021.  The  court  granted  final  approval  of  the  settlement  on  December  9,  2021.  As  of  December  31,
2021,  the  Company’s  financial  obligation  under  the  settlement  was  $2.7  million,  which  was  within  the  limits  of  its
insurance coverage. The settlement was paid in January 2022.

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

None.

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Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Under the supervision of and with the participation of our management, including our principal executive officer,
and  our  principal  financial  officer,  we  conducted  an  evaluation  of  the  effectiveness  of  our  disclosure  controls  and
procedures as of December 31, 2023, the end of the period covered by this Annual Report. The term “disclosure controls
and procedures,” as set forth in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or
the Exchange Act, means controls and other procedures of a company that are designed to provide reasonable assurance
that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is
recorded, processed, summarized and reported, within the time periods specified in the rules and forms promulgated by the
SEC.  Disclosure  controls  and  procedures  include,  without  limitation,  controls  and  procedures  designed  to  provide
reasonable assurance 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,
2023, 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.

Management’s Report on Internal Control over Financial Reporting

Our  management  is  responsible  for  establishing  and  maintaining  adequate  internal  control  over  financial
reporting, as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act. Management conducted an assessment of our
internal  control  over  financial  reporting  based  on  the  framework  established  in  2013  by  the  Committee  of  Sponsoring
Organizations  of  the  Treadway  Commission  in  Internal  Control—Integrated  Framework.    Based  on  the  assessment,
management concluded that our internal control over financial reporting was effective as of December 31, 2023 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.  Our  independent  registered  public  accounting  firm,  PricewaterhouseCoopers
LLP, has issued an audit report with respect to our internal control over financial reporting, which appears in Part II, Item 8
of this Annual Report.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting identified in connection with the evaluation
required by Rules 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the quarter ended December 31, 2023
that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Limitations  on  Effectiveness  of  Disclosure  Controls  and  Procedures  and  Internal  Control  over  Financial

Reporting

In designing and evaluating the disclosure controls and procedures and internal control over financial reporting,
management  recognizes  that  any  controls  and  procedures,  no  matter  how  well  designed  and  operated,  can  provide  only
reasonable  assurance  of  achieving  the  desired  control  objectives.  In  addition,  the  design  of  disclosure  controls  and
procedures  and  internal  control  over  financial  reporting  must  reflect  the  fact  that  there  are  resource  constraints  and  that
management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their
costs.

Item 9B. Other Information

Director and Officer Trading Arrangements

During the quarter ended December 31, 2023, none of our directors or officers (as defined in Rule 16a-1(f) under
the Exchange Act) adopted, modified or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading
arrangement” (as each term is defined in Item 408 of Regulation S-K).

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Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

Not applicable.

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PART III

We  will  file  a  definitive  Proxy  Statement  for  our  2024  Annual  Meeting  of  Stockholders,  or  the  2024  Proxy
Statement, with the SEC, pursuant to Regulation 14A, not later than 120 days after the end of our fiscal year. Accordingly,
certain information required by Part III has been omitted under General Instruction G(3) to Form 10-K. Only those sections
of the 2024 Proxy Statement that specifically address the items set forth herein are incorporated by reference.

Item 10. Directors, Executive Officers and Corporate Governance

The  information  required  by  Item  10  is  hereby  incorporated  by  reference  to  the  sections  of  the  2024  Proxy
Statement  under  the  captions  “Information  Regarding  the  Board  of  Directors  and  Corporate  Governance,”  “Election  of
Directors” and “Management.”

Item 11. Executive Compensation

The  information  required  by  Item  11  is  hereby  incorporated  by  reference  to  the  sections  of  the  2024  Proxy

Statement under the captions “Executive Compensation” and “Non-Employee Director Compensation.”

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

The  information  required  by  Item  12  is  hereby  incorporated  by  reference  to  the  sections  of  the  2024  Proxy
Statement  under  the  captions  “Security  Ownership  of  Certain  Beneficial  Owners  and  Management”  and  “Securities
Authorized for Issuance under Equity Compensation Plans.”

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

The  information  required  by  Item  13  is  hereby  incorporated  by  reference  to  the  sections  of  the  2024  Proxy
Statement under the captions “Transactions with Related Persons” and “Information Regarding the Board of Directors and
Corporate Governance—Independence of the Board of Directors.”

Item 14. Principal Accountant Fees and Services

The  information  required  by  Item  14  is  hereby  incorporated  by  reference  to  the  sections  of  the  2024  Proxy

Statement under the caption “Ratification of Selection of Independent Registered Public Accounting Firm.”

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PART IV

Item 15. Exhibits and Financial Statement Schedules

(a)    The following documents are filed as part of this report:

(1)    Financial Statements

Our  consolidated  financial  statements  are  listed  in  the  “Index  to  Consolidated  Financial  Statements”

under Part II. Item 8 of this Annual Report on Form 10-K.

(2)    Financial Statement Schedules

Financial  statement  schedules  have  been  omitted  in  this  report  because  they  are  not  applicable,  not
required  under  the  instructions,  or  the  information  required  is  set  forth  in  the  consolidated  financial
statements or related notes thereto.

(3)    Exhibits

See exhibits listed under part (b) below.

(b)    Exhibits

Exhibit
Number

Description of Document

2.1# Agreement and Plan of Merger, dated as of August 3, 2017, by and among the Registrant, Aclaris Life

Sciences, Inc., Confluence Life Sciences, Inc. and Fortis Advisors LLC (incorporated by reference to Exhibit
2.1 to the Registrant’s Quarterly Report on Form 10-Q (File No. 001-37581), filed with the SEC on
November 7, 2017).

3.1 Amended and Restated Certificate of Incorporation of the Registrant (incorporated by reference to

Exhibit 3.1 to the Registrant’s Current Report on Form 8-K (File No. 001-37581), filed with the SEC on
October 13, 2015).

3.2 Certificate of Amendment to Amended and Restated Certificate of Incorporation of the Registrant

(incorporated herein by reference to Exhibit 3.2 to the Registrant’s Quarterly Report on Form 10-Q (File No.
001-37581), filed with the SEC on August 7, 2023).

3.3 Amended and Restated Bylaws of the Registrant (incorporated by reference to Exhibit 3.1 to the Registrant’s

Current Report on Form 8-K (File No. 001-37581), filed with the SEC on June 24, 2020).

4.1* Description of Securities.

10.1+ Amended and Restated 2012 Equity Compensation Plan (incorporated by reference to Exhibit 10.7 to

10.2+

10.3+

10.4+

10.5+

10.6+

Amendment No. 1 to the Registrant’s Registration Statement on Form S-1 (File No. 333-206437), filed with
the SEC on September 4, 2015).
Form of Stock Option Grant under Amended and Restated 2012 Equity Compensation Plan (incorporated by
reference to Exhibit 10.8 to the Registrant’s Registration Statement on Form S-1 (File No. 333-206437), filed
with the SEC on August 17, 2015).
2015 Equity Incentive Plan (incorporated by reference to Exhibit 4.6 to the Registrant’s Registration
Statement on Form S-8 (File No. 333-207434), filed with the SEC on October 15, 2015).
Form of Stock Option Grant Notice and Stock Option Agreement under 2015 Equity Incentive Plan
(incorporated by reference to Exhibit 10.10 to Amendment No. 2 to the Registrant’s Registration Statement
on Form S-1 (File No. 333-206437), filed with the SEC on September 25, 2015).
Form of Restricted Stock Unit Grant Notice and Restricted Stock Unit Award Agreement under 2015 Equity
Incentive Plan (incorporated by reference to Exhibit 10.11 to Amendment No. 2 to the Registrant’s
Registration Statement on Form S-1 (File No. 333-206437), filed with the SEC on September 25, 2015).
Form of Performance Stock Option Grant Notice and Stock Option Agreement used in connection with the
2015 Equity Incentive Plan (incorporated by reference to Exhibit 10.11 to the Registrant’s Annual Report on
Form 10-K (File No. 001-37581), filed with the SEC on March 18, 2019).

110

   
Table of Contents

10.7+

Form of Performance Restricted Stock Unit Grant Notice and Restricted Stock Unit Award Agreement used
in connection with the 2015 Equity Incentive Plan (incorporated by reference to Exhibit 10.12 to the
Registrant’s Annual Report on Form 10-K (File No. 001-37581), filed with the SEC on March 18, 2019).

10.8+ Aclaris Therapeutics, Inc. Inducement Plan (incorporated herein by reference to Exhibit 10.1 to the

10.9+

Registrant’s Current Report on Form 8-K (File No. 001-37581), filed with the SEC on August 1, 2017).
Form of Stock Option Grant Notice and Stock Option Agreement used in connection with the Aclaris
Therapeutics, Inc. Inducement Plan (incorporated herein by reference to Exhibit 10.2 to the Registrant’s
Current Report on Form 8-K (File No. 001-37581), filed with the SEC on August 1, 2017).
10.10+ Eighth Amended and Restated Non-Employee Director Compensation Policy (incorporated herein by

reference to Exhibit 10.12 to the Registrant’s Annual Report on Form 10-K (File No. 001-37581), filed with
the SEC on February 23, 2023).

10.11+ Ninth Amended and Restated Non-Employee Director Compensation Policy (incorporated herein by

10.12+

reference to Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q (File No. 001-37581), filed with
the SEC on May 8, 2023).
Form of Indemnification Agreement (incorporated by reference to Exhibit 10.12 to the Registrant’s
Registration Statement on Form S-1 (File No. 333-206437), filed with the SEC on August 17, 2015).

10.13+ Employment Agreement, dated as of January 12, 2022, by and between the Registrant and Joseph Monahan

(incorporated herein by reference to Exhibit 10.15 to the Registrant’s Annual Report on Form 10-K (File No.
001-37581), filed with the SEC on February 24, 2022).

10.14+ Amended and Restated Employment Agreement, effective as of July 1, 2023, by and between the Registrant
and Joseph Monahan (incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on
Form 8-K (File No. 001-37581), filed with the SEC on June 12, 2023).
Second Amended and Restated Employment Agreement, effective as of February 1, 2024, by and between
the Registrant and Joseph Monahan.

10.15+*

10.16+ Employment Agreement, dated as of January 31, 2022, by and between the Registrant and James Loerop

(incorporated herein by reference to Exhibit 10.16 to the Registrant’s Annual Report on Form 10-K (File No.
001-37581), filed with the SEC on February 24, 2022).

10.17+ Amended and Restated Employment Agreement, dated as of January 1, 2023, by and between the Registrant
and Douglas Manion (incorporated herein by reference to Exhibit 10.23 to the Registrant’s Annual Report on
Form 10-K (File No. 001-37581), filed with the SEC on February 23, 2023).
Separation Agreement, Waiver, and Release, dated as of February 4, 2024, by and between the Registrant and
Douglas Manion.

10.18+*

10.19+ Employment Agreement, dated as of January 1, 2023, by and between the Registrant and Kevin Balthaser

(incorporated herein by reference to Exhibit 10.24 to the Registrant’s Annual Report on Form 10-K (File No.
001-37581), filed with the SEC on February 23, 2023).

10.20+ Employment Agreement, dated as of June 27, 2022, by and between the Registrant and Gail Cawkwell

(incorporated by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q (File No. 001-
37581), filed with the SEC on August 3, 2022).

10.21+ Letter Agreement, dated as of November 22, 2022, by and between the Registrant and Neal Walker

(incorporated herein by reference to Exhibit 10.16 to the Registrant’s Annual Report on Form 10-K (File No.
001-37581), filed with the SEC on February 23, 2023).

10.22+* Letter Agreement, dated as of January 31, 2024, by and between the Registrant and Neal Walker.

10.23˄ Office Lease, dated May 26, 2023, by and between the Registrant and CBCC – Lee Road Acquisitions, LLC

10.24

(incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No.
001-37581), filed with the SEC on June 1, 2023).
Sales Agreement, dated February 23, 2023, by and among the Registrant, SVB Securities LLC and Cantor
Fitzgerald & Co. (incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on
Form 8-K (File No. 001-37581), filed with the SEC on February 23, 2023).
Subsidiaries of the Registrant.

21.1*
23.1* Consent of PricewaterhouseCoopers LLP, independent registered public accounting firm.
24.1*
31.1* Certification of Principal Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) promulgated under the

Power of Attorney (contained on signature page hereto).

Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2* Certification of Principal Financial Officer pursuant to Rules 13a-14(a) and 15d-14(a) promulgated under the

Securities Exchange Act of 1934, as adopted pursuant to section 302 of the Sarbanes-Oxley Act of 2002.

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32.1† Certification of Principal Executive Officer and Principal Financial Officer pursuant to Rules 13a-14(b) and
15d-14(b) promulgated under the Securities Exchange Act of 1934 and 18 U.S.C. Section 1350, as adopted
pursuant to section 906 of The Sarbanes-Oxley Act of 2002.

97.1* Aclaris Therapeutics, Inc. Incentive Compensation Recoupment Policy, adopted as of October 2, 2023.
101.INS XBRL Instance Document (the instance document does not appear in the Interactive Data File because its

XBRL tags are embedded within the Inline XBRL document)

101.SCH Inline XBRL Taxonomy Extension Schema Document
101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document
Inline XBRL Taxonomy Extension Definition Linkbase Document
101.DEF
101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document

104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

*
†

Filed herewith.
This certification is being furnished solely to accompany this Annual Report pursuant to 18 U.S.C. Section 1350, and
is  not  being  filed  for  purposes  of  Section  18  of  the  Securities  Exchange  Act  of  1934,  as  amended,  and  is  not  to  be
incorporated by reference into any filing of the Registrant, whether made before or after the date hereof, regardless of
any general incorporation language in such filing.
Indicates management contract or compensatory plan.

+
# Confidential  treatment  has  been  granted  with  respect  to  portions  of  this  exhibit  (indicated  by  asterisks)  and  those

˄

portions have been separately filed with the SEC.
Pursuant  to  Item  601(a)(5)  of  Regulation  S-K  promulgated  by  the  SEC,  certain  exhibits  and  schedules  to  this
agreement have been omitted. The Company hereby agrees to furnish supplementally to the SEC, upon its request, any
or all of such omitted exhibits or schedules. 

Item 16. Form 10-K Summary

Not applicable.

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Pursuant  to  the  requirements  of  Section  13  or  15(d)  of  the  Securities  Exchange  Act  of  1934,  as  amended,  the

registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

SIGNATURES

Date:  February 27, 2024

ACLARIS THERAPEUTICS, INC.

By: /s/ Neal Walker
Neal Walker
Interim President and Chief Executive Officer

KNOW  ALL  PERSONS  BY  THESE  PRESENTS,  that  each  person  whose  signature  appears  below  constitutes
and  appoints  Neal  Walker  and  Kevin  Balthaser,  jointly  and  severally,  as  his  or  her  true  and  lawful  attorneys-in-fact  and
agents, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and
all capacities, to sign this Annual Report on Form 10-K of Aclaris Therapeutics, Inc., and any or all amendments thereto,
and  to  file  the  same,  with  all  exhibits  thereto,  and  other  documents  in  connection  therewith,  with  the  Securities  and
Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and
every act and thing requisite or necessary to be done in and about the premises hereby ratifying and confirming all that said
attorneys-in-fact  and  agents,  or  his,  her  or  their  substitute  or  substitutes,  may  lawfully  do  or  cause  to  be  done  by  virtue
hereof.

Pursuant  to  the  requirements  of  the  Securities  Exchange  Act  of  1934,  as  amended,  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

/s/ Neal Walker
Neal Walker

/s/ Kevin Balthaser
Kevin Balthaser

/s/ Christopher Molineaux
Christopher Molineaux

/s/ Anand Mehra, M.D.
Anand Mehra, M.D.

/s/ William Humphries
William Humphries

/s/ Andrew Powell
Andrew Powell

/s/ Andrew Schiff
Andrew Schiff

/s/ Bryan Reasons
Bryan Reasons

/s/ Maxine Gowen
Maxine Gowen

/s/ Vincent Milano
Vincent Milano

Interim President and Chief Executive Officer, and
Chairman of the Board of Directors
(Principal Executive Officer)

Chief Financial Officer
(Principal Financial Officer and Principal
Accounting Officer)

Date
February 27, 2024

February 27, 2024

Lead Independent Director

February 27, 2024

Director

Director

Director

Director

Director

Director

Director

113

February 27, 2024

February 27, 2024

February 27, 2024

February 27, 2024

February 27, 2024

February 27, 2024

February 27, 2024

  
  
Exhibit 4.1

DESCRIPTION OF ACLARIS THERAPEUTICS, INC. CAPITAL STOCK

The following description of the common stock of Aclaris Therapeutics, Inc., or the Company, is a summary and does not purport to
be complete. This summary is qualified in its entirety by reference to the provisions of the Delaware General Corporation Law, or
the DGCL, and the complete text of the Company’s amended and restated certificate of incorporation, as amended, or the certificate
of incorporation, which is incorporated by reference as Exhibits 3.1 and 3.2 of the Company’s Annual Report on Form 10-K, and
amended and restated bylaws, or the bylaws, which is incorporated by reference as Exhibit 3.3 of the Company’s Annual Report on
Form 10-K to which this description is also an exhibit. The Company encourages you to read that law and those documents
carefully.

Common Stock

Under the certificate of incorporation, the Company is authorized to issue up to 200,000,000 shares of common stock,

$0.00001 par value per share, and 10,000,000 shares of preferred stock, $0.00001 par value per share, all of which shares of
preferred stock are undesignated. The Company’s board of directors may establish the rights and preferences of the preferred stock
from time to time.

Voting Rights

Each holder of common stock is entitled to one vote for each share on all matters submitted to a vote of the stockholders,

including the election of directors. Under the certificate of incorporation and the bylaws, common stockholders do not have
cumulative voting rights. Because of this, the holders of a majority of the shares of common stock entitled to vote in any election of
directors can elect all of the directors standing for election, if they should so choose.

Dividends

Subject to preferences that may be applicable to any then-outstanding preferred stock, holders of common stock are entitled

to receive ratably those dividends, if any, as may be declared from time to time by the board of directors out of legally available
funds.

Liquidation

In the event of the Company’s liquidation, dissolution or winding up, holders of common stock will be entitled to share
ratably in the net assets legally available for distribution to stockholders after the payment of all of debts and other liabilities and the
satisfaction of any liquidation preference granted to the holders of any then-outstanding shares of preferred stock.

Rights and Preferences

Holders of common stock have no preemptive, conversion or subscription rights and there are no redemption or sinking fund

provisions applicable to the common stock. The rights, preferences and privileges of the holders of common stock are subject to,
and may be adversely affected by, the rights of the holders of shares of any series of preferred stock that the Company may
designate in the future.

Anti-Takeover Provisions

Section 203 of the DGCL

The Company is subject to Section 203 of the DGCL, which prohibits a Delaware corporation from engaging in any

business combination with any interested stockholder for a period of three years after the date that such stockholder became an
interested stockholder, with the following exceptions:

●

●

before such date, the board of directors of the corporation approved either the business combination or the transaction
that resulted in the stockholder becoming an interested stockholder;
upon completion of the transaction that resulted in the stockholder becoming an interested stockholder, the interested
stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction began,
excluding for purposes of determining the voting stock outstanding, but not the outstanding voting stock owned by the
interested stockholder, those shares owned (i) by persons who are directors and also officers and (ii) employee stock
plans in which employee participants do not have the right to determine confidentially whether shares held subject to
the plan will be tendered in a tender or exchange offer; or

●

on or after such date, the business combination is approved by the board of directors and authorized at an annual or
special meeting of the stockholders, and not by written consent, by the affirmative vote of at least 66 2/3% of the
outstanding voting stock that is not owned by the interested stockholder.

In general, Section 203 defines a “business combination” to include the following:

●
●

●

●

●

any merger or consolidation involving the corporation and the interested stockholder;
any sale, transfer, pledge or other disposition of 10% or more of the assets of the corporation involving the interested
stockholder;
subject to certain exceptions, any transaction that results in the issuance or transfer by the corporation of any stock of
the corporation to the interested stockholder;
any transaction involving the corporation that has the effect of increasing the proportionate share of the stock or any
class or series of the corporation beneficially owned by the interested stockholder; or
the receipt by the interested stockholder of the benefit of any loans, advances, guarantees, pledges or other financial
benefits by or through the corporation.

In general, Section 203 defines an “interested stockholder” as an entity or person who, together with the person’s affiliates
and associates, beneficially owns, or within three years prior to the time of determination of interested stockholder status did own,
15% or more of the outstanding voting stock of the corporation.

Certificate of Incorporation and Bylaws

The certificate of incorporation provides for the Company’s board of directors to be divided into three classes with staggered

three-year terms. Only one class of directors will be elected at each annual meeting of stockholders, with the other classes
continuing for the remainder of their respective three-year terms. Because the Company’s stockholders do not have cumulative
voting rights, stockholders holding a majority of the shares of common stock outstanding will be able to elect all of the Company’s
directors. The certificate of incorporation and bylaws also provide that directors may be removed by the stockholders only for cause
upon the vote of 66 2/3% or more of outstanding common stock. Furthermore, the authorized number of directors may be changed
only by resolution of the board of directors, and vacancies and newly created directorships on the board of directors may, except as
otherwise required by law or determined by the board, only be filled by a majority vote of the directors then serving on the board,
even though less than a quorum.

The certificate of incorporation and bylaws also provide that all stockholder actions must be effected at a duly called

meeting of stockholders and will eliminate the right of stockholders to act by written consent without a meeting. The bylaws also
provide that only the Company’s chairman of the board, chief executive officer or the board of directors pursuant to a resolution
adopted by a majority of the total number of authorized directors may call a special meeting of stockholders.

The bylaws also provide that stockholders seeking to present proposals before a meeting of stockholders or to nominate

candidates for election as directors at a meeting of stockholders must provide timely advance notice in writing, and specify
requirements as to the form and content of a stockholder’s notice.

The certificate of incorporation and bylaws provide that the stockholders cannot amend many of the provisions described

above except by a vote of 66 2/3% or more of outstanding common stock.

The combination of these provisions make it more difficult for the Company’s existing stockholders to replace the board of

directors as well as for another party to obtain control of the Company by replacing its board of directors. Since the Company’s
board of directors has the power to retain and discharge the Company’s officers, these provisions also make it more difficult for
existing stockholders or another party to effect a change in management. In addition, the authorization of undesignated preferred
stock makes it possible for the Company’s board of directors to issue preferred stock with voting or other rights or preferences that
could impede the success of any attempt to change the Company’s control.

These provisions are intended to enhance the likelihood of continued stability in the composition of the Company’s board of

directors and its policies and to discourage coercive takeover practices and inadequate takeover bids. These provisions are also
designed to reduce the Company’s vulnerability to hostile takeovers and to discourage certain tactics that may be used in proxy
fights. However, such provisions could have the effect of discouraging others from making tender offers for the Company’s shares
and may have the effect of delaying changes in its control or management. As a consequence, these provisions may also inhibit
fluctuations in the market price of the Company’s stock that could result from actual or rumored takeover attempts. The Company
believes that the benefits of these provisions, including increased protection of its potential ability to negotiate with the proponent of
an unfriendly or unsolicited proposal to acquire or restructure the company, outweigh the disadvantages of discouraging takeover
proposals, because negotiation of takeover proposals could result in an improvement of their terms.

Choice of Forum

The Company’s certificate of incorporation provides that the Court of Chancery of the State of Delaware is the exclusive

forum for the following types of actions or proceedings under Delaware statutory or common law: (i) any derivative action or
proceeding brought on the Company’s behalf, (ii) any action asserting a claim for breach of a fiduciary duty owed by any of the
Company’s directors, officers or other employees to the Company or its stockholders, (iii) any action asserting a claim arising
pursuant to any provision of the DGCL, the Company’s certificate of incorporation or bylaws or (iv) any action asserting a claim
governed by the internal affairs doctrine. However, this exclusive forum provision would not apply to suits brought to enforce a
duty or liability created by the Securities Act of 1933, as amended, or the Securities Act, or the Securities Exchange Act of 1934, as
amended.

In addition, the Company’s bylaws provide that unless the Company consents in writing to the selection of an alternative

forum, the federal district courts of the United States of America shall, to the fullest extent permitted by law, be the sole and
exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act, and that any person
or entity purchasing or otherwise acquiring or holding any interest in shares of capital stock of the Company shall be deemed to
have notice of and consented to the federal forum selection provision.

Transfer Agent and Registrar

The transfer agent and registrar for the Company’s common stock is Broadridge Corporate Issuer Solutions, Inc. The

transfer agent’s address is 1717 Arch Street, Suite 1300, Philadelphia, Pennsylvania 19103.

Listing on the NASDAQ Global Select Market

The Company’s common stock is listed on the Nasdaq Global Select Market under the symbol “ACRS.”

Exhibit 10.15

SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT

This  SECOND  AMENDED  AND  RESTATED  EMPLOYMENT  AGREEMENT  (the  “Employment
Agreement”), effective as of February 1, 2024 (“Agreement Effective Date”),  is  made  by  and  between  Aclaris
Therapeutics,  Inc.,  a  corporation  organized  under  the  laws  of  the  State  of  Delaware  (“Employer”)  and  Joseph
Monahan (“Executive”).

WHEREAS,  Executive  is  employed  by  and  performing  services  for  Employer  pursuant  to  an  Amended

and Restated Employment Agreement with Employer effective as of July 1, 2023 (the “Prior Agreement”);

WHEREAS,  Executive  desires  to  continue  to  provide  services  to  Employer  and  Employer  desires  to
continue to employ Executive and, in connection herewith, to compensate Executive for his services to Employer;

WHEREAS, this Second Amended and Restated Employment Agreement amends, restates, replaces and

supersedes in its entirety Executive’s Prior Agreement;

WHEREAS,  Executive  and  Employer  agree  that  this  Employment  Agreement  sets  forth  the  terms  and

conditions of Executive’s employment with Employer as of the Agreement Effective Date; and

WHEREAS,  this  Employment  Agreement  has  been  duly  approved  and  its  execution  has  been  duly

authorized by the Compensation Committee of Employer’s Board of Directors.

NOW, THEREFORE, in consideration of the mutual promises and covenants contained herein Employer

and Executive hereby agree as follows:

SECTION 1. EMPLOYMENT

1.1

General.  Employer  hereby  agrees  to  continue  to  employ  Executive  in  the  capacity  of  Chief
Scientific Officer (“CSO”). Executive hereby accepts such continued employment upon the terms and subject to
the conditions herein contained.

1.2

Authority  and  Duties.  Executive  shall  continue  to  have  full  responsibility  as  the  CSO  of
Employer  and  all  authority  normally  accorded  to  such  position.  Executive  agrees  to  perform  such  duties  and
responsibilities  commensurate  with  the  position  of  CSO  as  may  reasonably  be  determined  by  the  Board  of
Directors of Employer (the “Board”).

1.2.1 Reporting.  During  Executive’s  employment  with  Employer,  Executive  will  continue  to

report directly to, and take direction from, the Chief Executive Officer (the “CEO”).

1.2.2 Time to Be Devoted to Employment. As of the Agreement Effective Date, Executive will
shift  to  full-time  status.  Executive  shall  continue  to  diligently  devote  his  efforts,  business  time,  attention  and
energies to the business of Employer and will not, while employed by Employer, undertake or engage in any other
employment,  occupation  or  business  enterprise  that  would  interfere  with  Executive’s  responsibilities  and  the
performance of Executive’s duties hereunder except for (i) reasonable time devoted to volunteer services for or on
behalf of such

1

religious,  educational,  non-profit  and/or  other  charitable  organization  as  Executive  may  wish  to  serve,  (ii)
reasonable  time  devoted  to  activities  in  the  non-profit  and  business  communities  consistent  with  Executive’s
duties; and (iii) reasonable time devoted to service as a member of the board of directors of the entities listed on
Exhibit  A  or  as  otherwise  permitted  pursuant  to  Section  1.3.  This  restriction  shall  not,  however,  preclude
Executive  (x)  from  owning  less  than  one  percent  (1%)  of  the  total  outstanding  shares  of  a  publicly  traded
company,  or  (y)  from  employment  or  service  in  any  capacity  with  Affiliates  of  Employer.  As  used  in  this
Employment Agreement, Affiliates means an entity under common management or control with Employer.

1.3

Other  Responsibilities.  Notwithstanding  Section  1.2.2  above,  Executive  will  not  engage  in  any
other  for-profit  business,  profession  or  occupation,  including  as  a  member  of  a  board  of  directors  of  any  third
party,  for  compensation  which  would  materially  conflict  or  materially  interfere  with  the  rendition  of  services
hereunder,  without  the  prior  written  consent  of  the  Board,  which  shall  not  be  unreasonably  withheld.  Any
uncertainty as to whether such a conflict exists will be raised by Executive for determination by the Board, acting
reasonably.  The  Board  acknowledges  that  Executive  has  ongoing  participation  in  other  private  and  public
businesses that have been disclosed by Executive and are listed on Exhibit A and that such participation does not,
in any way, conflict with his role at Employer. Except for the businesses listed on Exhibit A, which have already
been  approved,  Executive  agrees  to  disclose  to  the  Board  and  receive  prior  written  consent  from  the  Board  to
participate as a director, with any competing company whether it is a private or public company. Executive further
agrees  to  disclose  any  other  director  positions  with  any  other  company  that  may  materially  affect  his  ability  to
perform  his  duties  and  responsibilities  under  this  Employment  Agreement.  Notwithstanding  the  above,  nothing
herein shall limit or preclude Executive from managing any passive investments made by Executive.

1.4

Location of Employment. Executive’s principal place of employment during his employment with
Employer  shall  continue  to  be  Executive’s  primary  residence  (or  other  remote  work  location)  or  such  other
location  as  Employer  and  Executive  shall  agree;  provided  however,  that  from  time  to  time  Executive  may  be
required  to  travel  to  Employer’s  offices,  including  Employer’s  principal  executive  office  currently  located  in
Wayne, Pennsylvania and St. Louis, Missouri.

SECTION 2. COMPENSATION AND BENEFITS

2.1

Salary. Beginning as of the Agreement Effective Date, Employer will pay to Executive an annual
base  salary  of  $430,000,  payable  subject  to  standard  federal  and  state  payroll  withholding  requirements  in
accordance  with  the  regular  payroll  practices  of  Employer  (“Base  Salary”).  The  annual  Base  Salary  may  be
increased  (but  not  decreased  without  written  consent  of  Executive)  during  the  term  of  this  Employment
Agreement by the Board in its sole discretion.

2.2

Additional  Compensation.  In  addition  to  the  salary  set  forth  in  Section  2.1,  Executive  shall
continue to be entitled to receive a cash bonus in accordance with the terms of this Section 2.2. For each fiscal
year of Employer during the Employment Term (as defined in Section 2.4 hereof), Executive shall continue to be
eligible to receive a cash bonus based on (i) the “Annual Bonus Expectancy Amount,” which shall be an amount
equal  to  40%  of  Executive’s  Base  Salary  for  the  applicable  fiscal  year  (provided  that  for  fiscal  year  2024,
Executive’s base salary for purposes of calculating his bonus under this section shall be the total salary paid to
him for the

2

year),  and  (ii)  Executive’s  attainment  of  performance  targets  and  other  reasonable  criteria  established  by  the
Board,  to  the  extent  possible,  by  the  end  of  the  first  month  of  such  fiscal  year.  Depending  on  the  targets  and
criteria which are achieved or met, the amount of the cash bonus actually payable to Executive for each fiscal
year  will  be  an  amount  from  zero  to  and  including  the  Annual  Bonus  Expectancy  Amount.  Any  cash  bonus
amount payable pursuant to this Section 2.2 shall be paid to Executive as soon as practicable, but in no event
later  than  two  and  one-half  (2  1/2)  months,  following  the  end  of  the  fiscal  year  to  which  it  relates.  For  the
avoidance of doubt, Executive does not have to be employed by Employer on the date such bonus is approved or
paid by Employer to receive such bonus.

2.3

Executive Benefits. In addition to the salary and additional compensation set forth in Sections 2.1

and 2.2, Executive shall also be entitled to the following benefits during Executive’s employment hereunder:

2.3.1 Expenses. Employer will promptly reimburse Executive for expenses he reasonably incurs
in  connection  with  the  performance  of  his  duties  (including  business  travel  and  entertainment  expenses),  in
accordance with Employer’s standard expense reimbursement policy, as the same may be modified by Employer
from  time  to  time;  provided,  however,  that  Executive  has  provided  Employer  with  documentation  of  such
expenses in accordance with the Employer’s expense reimbursement policies and applicable tax requirements. For
the avoidance of doubt, to the extent that any reimbursements payable to Executive are subject to the provisions of
Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”): (a) any such reimbursements will
be  paid  no  later  than  December  31  of  the  year  following  the  year  in  which  the  expense  was  incurred,  (b)  the
amount  of  expenses  reimbursed  in  one  year  will  not  affect  the  amount  eligible  for  reimbursement  in  any
subsequent  year,  and  (c)  the  right  to  reimbursement  under  this  Employment  Agreement  will  not  be  subject  to
liquidation or exchange for another benefit.

2.3.2 Employer  Plans.  Executive  will  be  eligible  to  participate  on  the  same  basis  as  similarly
situated  full-time  employees  in  Employer’s  employee  benefit  plans  and  programs,  as  they  may  be  interpreted,
adopted, revised or deleted from time to time in Employer’s sole discretion, subject to and on a basis consistent
with  the  terms,  conditions  and  overall  administration  of  such  plans  and  programs.  All  matters  of  eligibility  for
coverage or benefits under any benefit plan shall be determined in accordance with the provisions of such plan.
Employer  retains  the  unilateral  right  to  amend,  modify  or  terminate  any  of  its  employee  benefit  plans  and
programs at any time.

2.3.3 Vacation.  Executive  shall  be  eligible  for  paid  vacation  leave  (not  including  regular
holidays) in accordance with Employer’s applicable vacation or PTO policy and consistent with the needs of the
business. Vacation must be scheduled at those times convenient to Employer’s business as reasonably determined
by the CEO.

2.3.4 Coverage.  Nothing  in  this  Employment  Agreement  shall  prevent  Executive  from
participating  in  any  other  compensation  plan  or  benefit  plan  made  available  to  similarly  situated  full-time
employees of Employer.

3

2.3.5 Withholding. All compensation shall be subject to withholding of taxes and deductions of

other amounts as may be required by law.

2.4

Employment Term. Unless earlier terminated pursuant to Section 3.1, Executive’s employment by
Employer pursuant to this Employment Agreement shall continue until the second anniversary of the Agreement
Effective Date (the “Initial Term”). Thereafter, this Employment Agreement shall be automatically renewed for
successive  one  (1)  year  periods  (any  subsequent  employment  period  being  referred  to  herein  as  the  “Renewal
Term”,  and  together  with  the  Initial  Term,  the  “Employment Term”);  provided,  however,  that  either  party  may
elect to not renew this Employment Agreement by written notice to such effect delivered to the other party at least
ninety (90) days prior to expiration of the Initial Term or the Renewal Term.

SECTION 3. TERMINATION OF EMPLOYMENT

3.1

Events  of  Termination.  Executive’s  employment  with  Employer  will  terminate  upon  the

occurrence of any one or more of the following events:

3.1.1 Death.  In  the  event  of  Executive’s  death,  Executive’s  employment  will  terminate  on  the

date of death.

3.1.2 Disability.  In  the  event  of  Executive’s  Disability  (as  hereinafter  defined),  Employer  will
have the option to terminate Executive’s employment by giving a notice of termination to Executive. The notice of
termination shall specify the date of termination, which date shall not be earlier than thirty (30) calendar days after
the notice of termination is given. For purposes of this Employment Agreement, “Disability” has the meaning set
forth in Employer’s long term disability plan.

3.1.3 Termination by Employer for Cause. Employer may, at its option, terminate Executive’s
employment for Cause (as hereinafter defined) by unilateral action of the Board of Directors upon giving a notice
of termination to Executive. “Cause” shall mean (i) Executive’s conviction of, or guilty plea to, a felony (other
than traffic violations); (ii) any act(s) or omission(s) by Executive which constitutes gross negligence or a material
breach  of  Executive’s  duty  of  loyalty;  (iii)  any  material  breach  by  Executive  of  Employer’s  personnel  policies;
(iv) refusal to follow or implement a clear and reasonable directive of Employer; (v) breach of fiduciary duty; or
(vi) a material violation or breach by Executive of this Employment Agreement (other than an event described in
the foregoing clauses) or any other agreement between the parties. If of such termination shall be the later of the
date the notice of termination is given or the date set forth in such notice of termination.

3.1.4 Without  Cause  By  Employer.  Employer  may,  at  its  option,  terminate  Executive’s
employment for any reason whatsoever (other than for the other reasons set forth above in this Section 3.1 that
would  constitute  “Cause”  to  terminate)  by  giving  a  notice  of  termination  to  Executive,  and  Executive’s
employment shall terminate on the later of the date the notice of termination is given or the date set forth in such
notice of termination.

4

3.1.5 By  Executive.  Executive  may,  at  any  time,  terminate  Executive’s  employment  for  any
reason whatsoever by giving a notice of termination to Employer. Executive’s employment shall terminate on the
earlier of (i) thirty (30) calendar days after the date of receipt by Employer of the notice of termination or (ii) such
earlier date as the Employer and Executive shall agree.

3.1.6 Termination  Upon  Non-Renewal.  Either  party  may 

this  Employment
Agreement and Executive’s employment hereunder by providing the other party notice in accordance with Section
2.4 above, in which case this Employment Agreement and Executive’s employment hereunder shall terminate on
the last date of the Initial Term or the Renewal Term, as the case may be. For the avoidance of doubt, Executive
shall  continue  to  be  employed  by  Employer,  on  the  same  terms  and  conditions  as  set  forth  in  this  Employment
Agreement during the ninety (90)-day notice period provided by either party to the other party in accordance with
Section 2.4 above, unless, Employer, in its sole discretion elects to have Executive cease work for Employer, in all
capacities, during such notice period. In such event, Employer shall pay Executive all compensation in accordance
with Section 3.2.3.

terminate 

3.1.7 For  Good  Reason  by  Executive.  Executive  may,  at  his  option,  terminate  Executive’s
employment for “Good Reason” by giving a notice of termination to Employer in the event that, in the absence of
events that would support a termination of Executive for Cause:

(i)

there is a material failure of Employer (or successor employer) to pay Executive’s salary or

additional compensation or benefits hereunder in accordance with this Employment Agreement;

(ii)

Executive’s Base Salary is materially decreased without his prior written consent;

(iii)

Executive is assigned duties materially inconsistent with his title and the responsibilities set

forth in Executive’s job description, without Executive’s prior written consent;

(iv)

Executive’s  place  of  employment  is  changed  to  a  location  that  is  greater  than  fifty  (50)
miles  from  Executive’s  current  place  of  employment  (disregarding  for  this  purpose  any  remote  work
arrangements); or

(v)

any  other  material  violation  or  breach  by  Employer  of  this  Employment  Agreement.
Notwithstanding  the  foregoing,  none  of  the  events  described  in  clauses  (i)  through  (iv)  above  shall  constitute
Good  Reason  unless  Executive  shall  have  notified  Employer  in  writing  describing  the  event  which  constitute
Good Reason within thirty (30) days after Executive first becomes aware of such event and then only if Employer
shall  have  failed  to  reasonably  cure  such  events,  if  curable,  within  thirty  (30)  days  after  Employer’s  receipt  of
such written notice and Executive elects to terminate his employment as a result within thirty (30) days following
the end of such thirty (30) day period (assuming, for the avoidance of doubt, that Employer does not elect to cure).

Executive and Employer agree that Executive’s shift full-time status as of the Agreement Effective Date

(as set forth in this Employment Agreement) was mutually agreed upon by the

5

parties (and with prior consent of Executive) and therefore does not constitute Good Reason as defined in this
Employment Agreement or the Prior Agreement.

3.2

Certain  Obligations  of  Employer  Following  Termination  of  Executive’s  Employment.
Following  the  termination  of  Executive’s  employment  under  the  circumstances  described  below,  Employer  will
pay to Executive, subject to standard federal and state payroll withholding requirements and in accordance with its
regular  payroll  practices,  the  following  compensation  and  provide  the  following  benefits  (provided  that  the
continuing payments of Executive’s then-current Base Salary, as described below, shall occur no less frequently
than monthly):

3.2.1 Death; Disability; Termination by Employer Without Cause or by Executive for Good
Reason.  In  the  event  that  Executive’s  employment  is  terminated  by  Employer  pursuant  to  Section  3.1.1
(“Death”), Section 3.1.2 (“Disability”), Section 3.1.4 (“Without Cause by Employer”) or by Executive pursuant
to Section 3.1.7 (“Termination by Executive for Good Reason”) hereof, and Executive, or his estate, as the case
may  be,  executes  and  does  not  revoke  a  separation  agreement  containing  a  release  upon  such  termination,  in  a
form provided by the Employer, of any and all claims against Employer and all related parties with respect to all
matters  arising  out  of  Executive’s  employment  by  Employer,  or  the  termination  thereof  (the  “Release”)  in
accordance  with  Section  3.7,  Executive,  or  his  estate,  as  the  case  may  be,  shall  be  entitled  to  the  following
payments  and  benefits,  which  payments  and  benefits  shall  be  paid  in  accordance  with  this  Section  3.2.1  and
Section 3.7:

(i)

Continuing payments of Executive’s then-current Base Salary for the Severance Period (as
defined  in  Section  3.5  herein),  payable  subject  to  standard  federal  and  state  payroll  withholding
requirements  in  accordance  with  Employer’s  regular  payroll  practices  on  Employer’s  normal  payroll
schedule over the Severance Period, subject to Section 3.7;

(ii)

Employer  shall  pay  to  Executive  a  lump  sum  payment  equal  to  the  gross  sum  of  any
bonuses or portion thereof for any preceding year or for the year of termination which have been or are
approved by Employer, but has not been received by Executive prior to the effective date of termination,
less applicable deductions and withholdings, paid in accordance with Section 2.2 but in no event later than
two and one-half (2 1/2) months following the end of the fiscal year to which it relates. For the avoidance
of doubt, Executive does not have to be employed by Employer on the date such bonuses are approved by
Employer to receive such bonuses;

(iii)

So long as Executive is eligible, and so long as Executive remains eligible, for and upon his
timely  election  of  coverage  under  the  Consolidated  Omnibus  Budget  Reconciliation  Act  of  1985,  or,  if
applicable,  state  or  local  insurance  laws  (“COBRA”),  Employer  will  continue  to  pay,  directly  to  the
healthcare  provider  when  due,  Employer’s  portion  of  the  medical,  vision  and  dental  coverage  premiums
(and  Executive  will  be  responsible  for  Executive’s  portion)  for  a  period  of  twelve  (12)  months  after  the
effective date of Executive’s termination (the “COBRA Payment Period”);  provided  that,  if  at  any  time
Employer determines, in its sole discretion, that the payment of the COBRA premiums would result in a
violation of the nondiscrimination rules of Section

6

105(h)(2) of the Code or any statute or regulation of similar effect (including but not limited to the 2010
Patient  Protection  and  Affordable  Care  Act,  as  amended  by  the  2010  Health  Care  and  Education
Reconciliation  Act),  then  in  lieu  of  providing  the  COBRA  premiums  for  the  remainder  of  the  COBRA
Payment Period, Employer will instead pay Executive on the first day of each month of the remainder of
the COBRA Payment Period, a fully taxable cash payment equal to the COBRA premiums for that month,
subject to applicable tax withholdings, for the remainder of the COBRA Payment Period; and

(iv)

In the event such termination of employment occurs on or within three (3) months prior to

or within twelve (12) months following the effective date of a Change of Control (as defined herein),
Executive shall be entitled to the additional following payments and benefits (for the avoidance of doubt,
Executive shall also be entitled to the amounts set forth in Section 3.2.1(i)-(iii)):

(1)

Employer shall pay to Executive a lump sum payment equal to the Annual
Expectancy  Bonus  Amount  (target  bonus),  less  applicable  deductions  and  withholdings,  paid
within  thirty  (30)  days  of  the  later  of  (a)  the  effective  date  of  the  Change  of  Control  or  (b)
Executive’s  termination,  if  such  termination  occurs  on  or  after  the  effective  date  of  a  Change  of
Control; and

(2)

In the event such termination of employment occurs (A) on or within three
(3) months prior to the effective date of a Change of Control, all unvested stock options and other
equity awards held by Executive and outstanding on the effective date of termination shall become
fully  vested  on  the  effective  date  of  the  Change  of  Control,  or  (B)  within  twelve  (12)  months
following  the  effective  date  of  a  Change  of  Control,  provided  that  any  surviving  corporation  or
acquiring corporation assumes Executive’s stock options and/or other equity awards, as applicable,
or  substitutes  similar  stock  options  or  equity  awards  for  Executive’s  stock  options  and/or  equity
awards,  as  applicable,  in  accordance  with  the  terms  of  Employer’s  applicable  equity  incentive
plans, all such unvested stock options and other equity awards held by Executive and outstanding
on the effective date of termination shall become fully vested on the date of such termination.

For purposes of this Employment Agreement, “Change of Control” means, in each case as approved by
the Board and the requisite stockholders of Employer, (i) any consolidation or merger of Employer with or into
any other corporation or other entity or person, or any other corporate reorganization, in which the stockholders of
Employer immediately prior to such consolidation, merger or reorganization, own, in the aggregate, less than 50%
of  the  surviving  entity’s  voting  power  and/or  outstanding  capital  stock  immediately  after  such  consolidation,
merger  or  reorganization,  or  any  transaction  or  series  of  related  transactions  (including  any  transaction  which
results from an option agreement or binding letter of intent with a third party) to which Employer or any of its
stockholders is a party in which in excess of 50% of Employer’s voting power and/or outstanding capital stock is
transferred, or pursuant to which any person or group of affiliated persons obtains in excess of 50% of Employer’s
voting  power  and/or  outstanding  capital  stock,  excluding  any  consolidation  or  merger  effected  exclusively  to
change

7

the domicile of Employer; or (ii) any sale, license or other disposition (including through a Board and stockholder
approved  division  or  spin-off  transaction)  of  all  or  substantially  all  of  the  assets  of  Employer  and/or  any  of  its
subsidiaries or any sale, exclusive license or other disposition of all or substantially all of Employer’s intellectual
property, as reasonably determined based upon the potential earning power of the assets or intellectual property;
provided, however, that none of the following shall constitute a Change of Control: (A) transfers of capital stock
by an existing stockholder as a result of death or otherwise for estate planning purposes or to such stockholder’s
affiliates or to any of Employer’s other existing stockholders, and (B) issuances of equity securities of Employer
in connection with financings for working capital and other general corporate purposes; and, provided further, that
such “Change of Control” qualifies as either a change in ownership of Employer as defined in Section 409A of the
Code (“Section 409A”) or a change in the ownership of a substantial portion of Employer’s assets as defined in
Section 409A, as the case may be.

3.2.2 Termination  by  Executive  Other  than  For  Good  Reason;  Termination  Upon  Non-
Renewal  by  Executive;  Termination  by  Employer  for  Cause.  In  the  event  Executive’s  employment  is
terminated  by  Executive  other  than  for  Good  Reason  pursuant  to  Section  3.1.5  hereof  (“By  Executive”)  or  by
Executive  pursuant  to  Section  3.1.6  hereof  (“Termination  Upon  Non-Renewal”)  or  by  Employer  pursuant  to
Section  3.1.3  hereof  (“Termination  by  Employer  for  Cause”),  Executive  shall  be  entitled  to  no  further
compensation or other benefits under this Employment Agreement except as to that portion of any unpaid salary
and other benefits accrued and earned by him hereunder up to and including the effective date of such termination
and to offer COBRA coverage at Executive’s cost pursuant to applicable law.

3.2.3 Termination Upon Non-Renewal by Employer. In the event Executive’s employment is
terminated by Employer pursuant to Section 3.1.6 hereof, then during the ninety (90)-day notice period of Section
2.4,  Employer  shall  continue  to  pay  to  Executive  his  then-current  Base  Salary  and  benefits  subject  to  standard
federal and state payroll withholding requirements and in accordance with Employer’s regular payroll practices,
and  no  later  than  the  effective  date  of  termination  of  employment,  Employer  shall  pay  to  Executive  any  such
unpaid salary accrued and earned by him up to and including the effective date of termination. In addition, in the
event  Executive’s  employment  is  terminated  by  Employer  pursuant  to  Section  3.1.6  hereof,  then  provided
Executive executes and does not revoke a Release in accordance with Section 3.7, Executive shall be entitled to
the following, which payments and benefits shall be paid in accordance with this Section 3.2.3 and Section 3.7:

(i)

Continuing  payments  of  Executive’s  then-current  Base  Salary  for  the  Severance  Period
payable  subject  to  standard  federal  and  state  payroll  withholding  requirements  in  accordance  with
Employer’s regular payroll practices on Employer’s normal payroll schedule over the Severance Period,
subject to Section 3.7;

(ii)

Employer  shall  pay  to  Executive  a  lump  sum  payment  equal  to  the  gross  sum  of  any
bonuses or portion thereof for any preceding year or for the year of termination which have been or are
approved by Employer, but has not been received by Executive prior to the effective date of termination,
less applicable deductions and withholdings, paid in accordance with Section 2.2 but in no event later than
two and one-half (2 1/2)

8

months following the end of the fiscal year to which it relates. For the avoidance of doubt, Executive does
not have to be employed by Employer on the date such bonuses are approved by Employer to receive such
bonuses; and

(iii)

So long as Executive is eligible, and so long as Executive remains eligible, for and upon his

timely election of coverage under COBRA, Employer will continue to pay, directly to the healthcare
provider when due, Employer’s portion of the medical, vision and dental coverage premiums (and
Executive will be responsible for Executive’s portion) for the COBRA Payment Period; provided that, if at
any time Employer determines, in its sole discretion, that the payment of the COBRA premiums would
result in a violation of the nondiscrimination rules of Section 105(h)(2) of the Code or any statute or
regulation of similar effect (including but not limited to the 2010 Patient Protection and Affordable Care
Act, as amended by the 2010 Health Care and Education Reconciliation Act), then in lieu of providing the
COBRA premiums for the remainder of the COBRA Payment Period, Employer will instead pay
Executive on the first day of each month of the remainder of the COBRA Payment Period, a fully taxable
cash payment equal to the COBRA premiums for that month, subject to applicable tax withholdings, for
the remainder of the COBRA Payment Period.

3.3

Nature  of  Payments.  All  amounts  to  be  paid  by  Employer  to  Executive  pursuant  to  Sections
3.2.1(i) — (iv) and 3.2.3(i) — (iii) are considered by the parties to be severance payments and are in lieu of, and
not in addition to, any benefits to which Executive may otherwise be entitled under any Employer severance plan,
policy or program.

3.4

Duties Upon Termination. During the Severance Period, if there is a Severance Period applicable
to Executive’s termination of employment from Employer, Executive shall fully cooperate with Employer in all
matters  relating  to  the  winding  up  of  Executive’s  pending  work  including,  but  not  limited  to,  any  litigation  in
which Employer is involved, and the orderly transfer of any such pending work to such other employees as may
be designated by Employer. Notwithstanding the foregoing, such cooperation requirement shall not unreasonably
interfere with his then current employment or business activities. With Employer’s prior approval, Executive shall
be reimbursed for all expenses reasonably incurred in connection with such cooperation. Following the end of the
Severance Period, Executive will be released from any duties and obligations hereunder (except those duties and
obligations  set  forth  in  Article  4  hereof).  In  the  event  of  termination  of  Executive’s  employment  pursuant  to
Sections 3.1.1 through 3.1.7 hereof, the obligations of Employer to Executive will be as set forth in Section 3.2
hereof. Upon termination, Executive shall immediately resign from his position as CSO of Employer.

3.5

Severance Period. “Severance Period” shall mean a period of twelve (12) months beginning on

the effective date of Executive’s termination of employment with Employer.

3.6

Release.  Notwithstanding  any  provision  of  this  Employment  Agreement  to  the  contrary,  in  no
event  shall  the  timing  of  Executive’s  execution  of  the  Release,  directly  or  indirectly,  result  in  Executive
designating the calendar year of payment, and if a payment that is subject to the requirements of Section 409A of
the Code and is subject to execution of the Release could be

9

made in more than one taxable year based on when the Release is executed or becomes effective, payment shall be
made in the later year.

3.7

Commencement  of  Severance  Payments.  The  severance  payments  and  benefits  set  forth  in
Sections 3.2.1(i) — (iv) (Termination by Employer for Death, Disability, Without Cause, by Executive for Good
Reason) and Sections 3.2.3(i) — (iii) (Termination Upon Non- Renewal by Employer) above will not be paid or
provided unless Executive executes and does not revoke the Release and the Release is enforceable and effective
as  provided  in  the  Release  on  or  before  the  date  that  is  the  sixtieth  (60th)  day  following  the  effective  date  of
termination  (such  60th  day,  the  “Severance  Pay  Commencement  Date”).  No  cash  severance  payments  will  be
paid pursuant to Sections 3.2.1 or 3.2.3 prior to the Severance Pay Commencement Date. On the Severance Pay
Commencement Date, Employer will pay in a lump sum the aggregate amount of the cash severance payments
that Employer would have paid Executive through such date had the payments commenced on the effective date
of termination through the Severance Pay Commencement Date, with the balance paid thereafter on the applicable
schedules described above. Notwithstanding any other provision of this Employment Agreement to the contrary, it
is  intended  that  the  payment  of  severance  upon  termination  for  Good  Reason  by  Executive  in  accordance  with
Section  3.1.7  satisfy  the  safe  harbor  set  forth  in  Treasury  Regulation  Section  1.409A-1(n)(2)(ii)),  and  any
severance  payment  made  pursuant  to  this  Employment  Agreement  shall  satisfy  the  exemptions  from  the
application  of  Section  409A  of  the  Code  provided  under  Treasury  Regulation  Sections  1.409A-1(b)(4),  and
1.409A-1 (b)(9).

SECTION 4. CONFIDENTIALITY, INVENTION RIGHTS, NON-COMPETITION AND NON-
SOLICITATION

4.1

Confidentiality,  Invention  Rights,  Non-Competition  and  Non-Solicitation.  The  parties  hereto
have entered into a Confidentiality, Invention Rights, Non-Competition and Non- Solicitation Agreement, which
may  be  amended  by  the  parties  from  time  to  time  without  regard  to  this  Employment  Agreement.  Executive
agrees  as  a  condition  of  continued  employment  hereunder  to  continue  to  abide  by  the  terms  and  conditions  set
forth  in  the  Confidentiality,  Invention  Rights,  Non-Competition  and  Non-Solicitation  Agreement.  The
Confidentiality, Invention Rights, Non-Competition and Non-Solicitation Agreement contains provisions that are
intended by the parties to survive and do survive termination of this Employment Agreement.

4.2

Remedies. Executive acknowledges and agrees that (a) Employer will be irreparably injured in the
event of a breach by Executive of any of his obligations under this Article 4; (b) monetary damages will not be an
adequate remedy for any such breach; and (c) in the event of any such breach, the Employer will be entitled to
injunctive  relief,  in  addition  to  any  other  remedy  which  it  may  have,  and  Executive  shall  not  oppose  such
injunctive relief based upon the extent of the harm or the adequacy of monetary damages.

SECTION 5. MISCELLANEOUS PROVISIONS

5.1

Severability.  If  in  any  jurisdiction  any  term  or  provision  hereof  is  determined  to  be  invalid  or
unenforceable,  (a)  the  remaining  terms  and  provisions  hereof  shall  be  unimpaired,  (b)  any  such  invalidity  or
unenforceability  in  any  jurisdiction  shall  not  invalidate  or  render  unenforceable  such  provision  in  any  other
jurisdiction, and (c) the invalid or unenforceable term

10

or provision shall, for purposes of such jurisdiction, be deemed replaced by a term or provision that is valid and
enforceable and that comes closest to expressing the intention of the invalid or unenforceable term or provision.

5.2

Execution  in  Counterparts.  This  Employment  Agreement  may  be  executed  in  one  or  more
counterparts, and by the different parties hereto in separate counterparts, each of which shall be deemed to be an
original but all of which taken together shall constitute one and the same agreement (and all signatures need not
appear  on  any  one  counterpart),  and  this  Employment  Agreement  shall  become  effective  when  one  or  more
counterparts  has  been  signed  by  each  of  the  parties  hereto  and  delivered  to  each  of  the  other  parties  hereto.
Counterparts may be delivered via facsimile, electronic mail (including pdf or any electronic signature complying
with the U.S. federal ESIGN Act of 2000, Uniform Electronic Transactions Act or other applicable law) or other
transmission method and any counterpart so delivered will be deemed to have been duly and validly delivered and
be valid and effective for all purposes.

5.3

Notices.  All  notices,  requests,  demands  and  other  communications  hereunder  shall  be  in  writing
and shall be deemed duly given when delivered by hand, or when delivered if mailed by registered or certified
mail,  postage  prepaid,  return  receipt  requested,  or  private  courier  service  or  via  facsimile  (with  written
confirmation of receipt) or email (with written confirmation of receipt) as follows:

If to Employer, to:

Aclaris Therapeutics, Inc.
701 Lee Road, Suite 103
Wayne, PA 19087
Attention: Legal Department
E-mail: legal@aclaristx.com

If to Executive, to the current address on file with Employer,

or to such other address(es) as a party hereto shall have designated by like notice to the other parties hereto.

5.4

Amendment. No provision of this Employment Agreement may be modified, amended, waived or

discharged in any manner except by a written instrument executed by Employer and Executive.

5.5

Entire  Agreement.  This  Employment  Agreement  constitutes  the  entire  agreement  of  the  parties
hereto  with  respect  to  the  subject  matter  hereof,  and  supersedes  all  prior  agreements  and  understandings  of  the
parties  hereto,  oral  or  written,  with  respect  to  the  subject  matter  hereof,  including  but  not  limited  to  the  Prior
Agreement. No representation, promise or inducement has been made by either party that is not embodied in this
Employment Agreement, and neither party shall be bound by or liable for any alleged representation, promise or
inducement not so set forth.

11

5.6

Applicable Law. This Employment Agreement shall be governed by and construed in accordance
with  the  laws  of  the  Commonwealth  of  Pennsylvania  applicable  to  contracts  made  and  to  be  wholly  performed
therein without regard to its conflicts or choice of law provisions.

5.7

Headings. The headings contained herein are for the sole purpose of convenience of reference, and
shall  not  in  any  way  limit  or  affect  the  meaning  or  interpretation  of  any  of  the  terms  or  provisions  of  this
Employment Agreement.

5.8

Binding  Effect;  Successors  and  Assigns.  Executive  may  not  delegate  his  duties  or  assign  his
rights hereunder. This Employment Agreement will inure to the benefit of, and be binding upon, the parties hereto
and  their  respective  heirs,  legal  representatives,  and  successors.  Employer  may  assign  this  Employment
Agreement to any entity purchasing all or substantially all of the assets of Employer.

5.9 Waiver, etc. The failure of either of the parties hereto to at any time enforce any of the provisions
of this Employment Agreement shall not be deemed or construed to be a waiver of any such provision, nor to in
any way affect the validity of this Employment Agreement or any provision hereof or the right of either of the
parties hereto to thereafter enforce each and every provision of this Employment Agreement. No waiver of any
breach  of  any  of  the  provisions  of  this  Employment  Agreement  shall  be  effective  unless  set  forth  in  a  written
instrument executed by the party against whom or which enforcement of such waiver is sought, and no waiver of
any such breach shall be construed or deemed to be a waiver of any other or subsequent breach.

5.10 Continuing Effect. Provisions of this Employment Agreement which by their terms must survive
the termination of this Employment Agreement in order to effectuate the intent of the parties will survive any such
termination,  whether  by  expiration  of  the  term,  termination  of  Executive’s  employment,  or  otherwise,  for  such
period as may be appropriate under the circumstances.

5.11 Representations  and  Warranties  of  Executive.  Executive  hereby  represents  and  warrants  to
Employer that to the knowledge of Executive, Executive is not bound by any non- competition or other agreement
which would prevent his performance hereunder.

5.12

Section 409A of the Code. This Employment Agreement is intended to comply with Section 409A
of  the  Code  and  its  corresponding  regulations,  or  an  exemption,  and  payments  may  only  be  made  under  this
Employment  Agreement  upon  an  event  and  in  a  manner  permitted  by  Section  409A  of  the  Code,  to  the  extent
applicable. Payment under this Employment Agreement is intended to be exempt from Code Section 409A under
the  “short-  term  deferral”  exception  set  forth  in  Treasury  Regulation  Section  1.409A-1(b)(4),  to  the  maximum
extent applicable, and then under the separation pay exception set forth in Treasury Regulation Section 1.409A-
1(b)(9), to the maximum extent applicable. All payments to be made upon a termination of employment under this
Employment  Agreement  may  only  be  made  upon  a  separation  from  service  within  the  meaning  of  Treasury
Regulation Section 1.409A-1(h) (or any successor provision) (a “Separation from Service”). For purposes of

12

Code  Section  409A,  the  right  to  a  series  of  installment  payments  under  this  Employment  Agreement  shall  be
treated as a right to a series of separate payments. In no event may the Executive, directly or indirectly, designate
the calendar year of a payment. If the termination of employment giving rise to the payments described in Section
3.2.1 is not a Separation from Service, then the amounts otherwise payable pursuant to Section 3.2.1 will instead
be  deferred  without  interest  and  paid  when  Executive  experiences  a  Separation  from  Service.  Notwithstanding
anything in this Employment Agreement to the contrary or otherwise, with respect to any expense, reimbursement
or in-kind benefit provided pursuant to this Employment Agreement that constitutes a “deferral of compensation”
within the meaning of Section 409A of the Code and its implementing regulations and guidance, (a) the expenses
eligible  for  reimbursement  or  in-kind  benefits  provided  to  Executive  must  be  incurred  during  the  Employment
Term (or applicable  survival  period),  (b)  the  amount  of  expenses  eligible  for  reimbursement or in-kind benefits
provided to Executive during any calendar year will not affect the amount of expenses eligible for reimbursement
or  in-kind  benefits  provided  to  Executive  in  any  other  calendar  year,  (c)  the  reimbursements  for  expenses  for
which Executive is entitled to be reimbursed shall be made on or before the last day of the calendar year following
the calendar year in which the applicable expense is incurred and (d) the right to payment or reimbursement or in-
kind benefits hereunder may not be liquidated or exchanged for any other benefit. Notwithstanding any provision
to the contrary in this Employment Agreement, if Executive is deemed by Employer at the time of his Separation
from Service to be a “specified employee” for purposes of Section 409A(a)(2)(B)(i) of the Code, and if any of the
payments due upon Separation from Service set forth herein and/or under any other agreement with Employer are
deemed  to  be  “deferred  compensation,”  then  to  the  extent  delayed  commencement  of  any  portion  of  such
payments is required to avoid a prohibited distribution under Section 409A(a)(2)(B)(i) of the Code and the related
adverse taxation under Section 409A of the Code, such payments will not be provided to Executive prior to the
earliest of (i) the expiration of the six (6)-month period measured from the date  of Executive’s Separation from
Service with Employer, (ii) the date of Executive’s death or (iii) such earlier date as permitted under Section 409A
of the Code without the imposition of adverse taxation. Upon the first business day following the expiration of
such applicable Code Section 409A(a)(2)(B)(i) period, all payments deferred pursuant to this Section 5.12 will be
paid  in  a  lump  sum  to  Executive,  and  any  remaining  payments  due  will  be  paid  as  otherwise  provided  in  this
Employment Agreement or in the applicable agreement. No interest will be due on any amounts so deferred.

5.13

Section 280G. Notwithstanding any other provision of this Employment Agreement or any other
plan, arrangement or agreement to the contrary, if any of the payments or benefits provided or to be provided by
Employer  or  its  affiliates  to  Executive  or  for  Executive’s  benefit  pursuant  to  the  terms  of  this  Employment
Agreement or otherwise (the “Covered Payments”) constitute parachute payments (the “Parachute Payments”)
within the meaning of Section 280G of the Code and, but for this Section 5.13, would be subject to the excise tax
imposed under Section 4999 of the Code (or any successor provision thereto) or any similar tax imposed by state
or local law or any interest or penalties with respect to such taxes (collectively, the “Excise Tax”), then prior to
making the Covered Payments, a calculation shall be made comparing (i) the Net Benefit (as defined below) to
Executive  of  the  Covered  Payments  after  payment  of  the  Excise  Tax  to  (ii)  the  Net  Benefit  to  Executive  if  the
Covered Payments are limited to the extent necessary

13

to  avoid  being  subject  to  the  Excise  Tax.  Only  if  the  amount  calculated  under  clause  (i)  above  is  less  than  the
amount under clause (ii) above will the Covered Payments be reduced to the minimum extent necessary to ensure
that no portion of the Covered Payments is subject to the Excise Tax. “Net Benefit” shall mean the present value
of the Covered Payments net of all federal, state, local, foreign income, employment and excise taxes.

(a)

Any such reduction shall be made in accordance with Section 409A and the following:

(i)

(ii)

(iii)

(iv)

the  Covered  Payments  consisting  of  cash  severance  benefits  that  do  not  constitute
nonqualified  deferred  compensation  subject  to  Section  409A  shall  be  reduced  first,  in
reverse chronological order; and

all other Covered Payments consisting of cash payments, and Covered Payments consisting
of accelerated vesting of equity based awards to which Treas. Reg. §1.280G-1 Q/A-24(c)
does not apply, and that in either case do not constitute nonqualified deferred compensation
subject to Section 409A, shall be reduced second, in reverse chronological order; and

all  Covered  Payments  consisting  of  cash  payments  that  constitute  nonqualified  deferred
compensation  subject  to  Section  409A  shall  be  reduced  third,  in  reverse  chronological
order; and

all  Covered  Payments  consisting  of  accelerated  vesting  of  equity-based  awards  to  which
Treas.  Reg.  §  1.280G-1  Q/A-24(c)  applies  shall  be  the  last  Covered  Payments  to  be
reduced.

(b)

Any determination required under this Section 5.13 shall be made in writing in good faith by an
independent  accounting  firm  selected  by  Employer  and  reasonably  acceptable  to  the  Executive  (the
“Accountants”). Employer and Executive shall provide the Accountants with such information and documents as
the Accountants may reasonably request in order to make a determination under this Section 5.13. For purposes of
making  the  calculations  and  determinations  required  by  this  Section  5.13,  the  Accountants  may  rely  on
reasonable, good-faith assumptions and approximations concerning the application of Section 280G and Section
4999  of  the  Code.  The  Accountants’  determinations  shall  be  final  and  binding  on  Employer  and  Executive.
Employer  shall  be  responsible  for  all  fees  and  expenses  incurred  by  the  Accountants  in  connection  with  the
calculations required by this Section 5.13.

(c)

It  is  possible  that  after  the  determinations  and  selections  made  pursuant  to  this  Section  5.13.
Executive will receive Covered Payments that are in the aggregate more than the amount intended or required to
be provided after application of this Section 5.13 (“Overpayment”) or less than the amount intended or required to
be provided after application of this Section 5.13 (“Underpayment”).

(i)

In the event that: (A) the Accountants determine, based upon the assertion of a deficiency
by the Internal Revenue Service against either Employer or Executive that the Accountants
believe has a high probability of success,

14

that  an  Overpayment  has  been  made  or  (B)  it  is  established  pursuant  to  a  final
determination  of  a  court  or  an  Internal  Revenue  Service  proceeding  that  has  been  finally
and  conclusively  resolved  that  an  Overpayment  has  been  made,  then  Executive  shall  pay
any such Overpayment to Employer together with interest at the applicable federal rate (as
defined  in  Section  7872(f)(2)(A)  of  the  Code)  from  the  date  of  Executive’s  receipt  of  the
Overpayment until the date of repayment.

(ii)

In  the  event  that:  (A)  the  Accountants,  based  upon  controlling  precedent  or  substantial
authority,  determine  that  an  Underpayment  has  occurred  or  (B)  a  court  of  competent
jurisdiction  determines  that  an  Underpayment  has  occurred,  any  such  Underpayment  will
be paid promptly by Employer to or for the benefit of Executive together with interest at the
applicable federal rate (as defined in Section 7872(f)(2)(A) of the Code) from the date the
amount should have otherwise been paid to Executive until the payment date.

5.14 Dispute Resolution. The parties recognize that litigation in federal or state courts or before federal
or state administrative agencies of disputes arising out of the Executive’s employment with the Employer or out of
this Employment Agreement, or the Executive’s termination of employment or termination of this Employment
Agreement, may not be in the best interests of either the Executive or Employer, and may result in unnecessary
costs, delays, complexities, and uncertainty. The parties agree that any dispute between the parties arising out of
or  relating  to  the  negotiation,  execution,  performance  or  termination  of  this  Employment  Agreement  or  the
Executive’s  employment,  including,  but  not  limited  to,  any  claim  arising  out  of  this  Employment  Agreement,
claims  under  Title  VII  of  the  Civil  Rights  Act  of  1964,  as  amended,  the  Civil  Rights  Act  of  1991,  the  Age
Discrimination  in  Employment  Act  of  1967,  the  Americans  with  Disabilities  Act  of  1990,  Section  1981  of  the
Civil Rights Act of 1966, as amended, the Family Medical Leave Act, the Executive Retirement Income Security
Act,  and  any  similar  federal,  state  or  local  law,  statute,  regulation,  or  any  common  law  doctrine,  whether  that
dispute arises during or after employment, shall be settled by binding arbitration in accordance with the National
Rules  for  the  Resolution  of  Employment  Disputes  of  the  American  Arbitration  Association;  provided  however,
that this dispute resolution provision shall not apply to any separate agreements between the parties that do not
themselves specify arbitration as an exclusive remedy. The location for the arbitration shall be the Philadelphia,
Pennsylvania  metropolitan  area.  Any  award  made  by  such  panel  shall  be  final,  binding  and  conclusive  on  the
parties  for  all  purposes,  and  judgment  upon  the  award  rendered  by  the  arbitrators  may  be  entered  in  any  court
having jurisdiction thereof. The arbitrators’ fees and expenses and all administrative fees and expenses associated
with  the  filing  of  the  arbitration  shall  be  borne  by  Employer.  The  parties  acknowledge  and  agree  that  their
obligations  to  arbitrate  under  this  Section  survive  the  termination  of  this  Employment  Agreement  or  the  Prior
Agreement and continue after the termination of the employment relationship between Executive and Employer.
The parties each further agree that the arbitration provisions of this Employment Agreement shall provide each
party with its exclusive remedy, and each party expressly waives any right it might have to seek redress in any
other forum, except as otherwise expressly provided in this Employment Agreement. By election arbitration as the
means for final settlement of all

15

claims, the parties hereby waive their respective rights to, and agree not to, sue each other in any action in
a Federal, State or local court with respect to such claims, but may seek to enforce in court an arbitration
award  rendered  pursuant  to  this  Employment  Agreement.  The  parties  specifically  agree  to  waive  their
respective rights to a trial by jury, and further agree that no demand, request or motion will be made for
trial by jury.

[SIGNATURE PAGE FOLLOWS]

16

IN  WITNESS  WHEREOF  the  parties  have  executed  this  Employment  Agreement  as  of  the  date  first  above
written.

Agreed to and Accepted this 31st day of January, 2024.

ACLARIS THERAPEUTICS, INC.

/s/ Neal Walker
Name: Neal Walker
Title

Interim President & CEO

EXECUTIVE

/s/ Joseph Monahan
Joseph Monahan

17

Exhibit A

List of Entities Referenced in Section 1.2.2.

Cadre Bioscience, LLC
Myonid Therapeutics, LLC

18

Exhibit 10.18

SEPARATION AGREEMENT, WAIVER AND RELEASE

THE SEPARATION AGREEMENT, WAIVER AND RELEASE (“Agreement”) is made and entered into as of 2/4/2024,
by and among Douglas Manion, whose address is                                                                  , and their heirs, legatees,
personal representatives, successors and assigns (“Employee”), and Aclaris Therapeutics, Inc. (“Aclaris” or “Employer”).

WHEREAS, Employer and Employee are parties to that certain Amended and Restated Employment Agreement, dated as
of January 1, 2023 (the “Employment Agreement”);

WHEREAS,  Employer  and  Employee  mutually  desire  that  Employee  step  down  from  all  of  Employee’s  positions  with
Employer; and

WHEREAS,  it  is  the  desire  of  the  parties  to  state  the  terms  and  conditions  of  the  termination  of  their  relationship  as
Employee and Employer.

NOW,  THEREFORE,  in  consideration  of  the  mutual  covenants,  representations  and  the  payments  made  herein,  the
sufficiency of which are hereby mutually acknowledged, the parties agree as follows:

1. Separation: Employee’s last day worked with Aclaris is January 16, 2024 (“Termination Date”). Employee resigns as a
member of the Board of Directors of Aclaris (“Board”) and/or the board of directors of any subsidiary or affiliate of the
Employer,  as  an  officer  of  Employer  and  any  subsidiary  or  affiliate  of  Employer,  and  any  role  or  position  in  which
Employee is acting as a representative or agent of Employer or any subsidiary or affiliate of Employer effective as of the
Termination  Date.    Employee  agrees  to  submit  such  documentation  as  the  Board  may  require  to  confirm  Employee’s
resignation from the Board.  In the regular course of business or in accordance with applicable law, Employer will pay
all  compensation  and  benefits  due  to  Employee  from  Aclaris  through  the  Termination  Date.  Employee  acknowledges
they are not due any further compensation from Aclaris except as specified in this Agreement.

2. Severance  and  Consideration  from  Employer:  In  exchange  for  Employee’s  release  and  other  promises  provided
herein, and Employee’s execution of this Agreement, and if Employee complies with the terms and conditions of this
Agreement and the Employment Agreement, then Aclaris will pay (or provide) Employee the same severance benefits as
set  forth  in  Section  3.2.1  of  the  Employment  Agreement  on  the  time  lines  set  forth  therein  and  in  Section  3.7  of  the
Employment  Agreement.  In  addition,  Aclaris  will  provide  Employee  with  access  to  career  transition  services  by  a
provider  selected  by  Employer,  provided  that  Employee  must  contact  the  provider  and  begin  receipt  of  these  services
within 90 days of the Effective Date.

3. Other Benefits

A. Earned  and  Unused  Vacation  Time:    Employee  will  also  be  paid  for  earned  but  unused  vacation  time  accrued
through the Termination Date in one lump sum via direct deposit in accordance with applicable law, but no later than
the next regular payroll cycle following the Termination Date in accordance with Aclaris’ usual compensation and
payroll practices. Aclaris will deduct all normal tax withholdings and deductions required by law.

B. Benefit Continuation: Employee separation from Aclaris is a “qualifying event” under the Consolidated Omnibus
Budget Reconciliation Act (“COBRA”). Information about Employee COBRA rights and election paperwork will be
mailed  to  Employee’s  home  in  accordance  with  Aclaris’  usual  policies  and/or  practices.  Employee  and  their
dependents may elect to continue health, dental and vision coverages under COBRA by completing and returning
the COBRA election paperwork in accordance with the instructions set forth in those materials. Should

Page 1 of 9

SEPARATION AGREEMENT, WAIVER AND RELEASE

Employee elect COBRA continuation, except as set forth in Section 3.2.1 of the Employment Agreement, Employee
will be fully responsible for payment of the premium cost of Employee COBRA coverage. Continuation of coverage
shall in all respects be subject to the requirements, conditions and limitations of COBRA and Aclaris’ plans, which
may be amended, modified or discontinued from time to time in the sole discretion of Aclaris.

C. Tax Treatment:  Aclaris will issue a Form W-2 to Employee that includes the aforementioned cash severance and
Employer may issue such tax forms as necessary to reflect consideration provided pursuant to this Agreement.

D. 401(k) Savings Plan:  Employee will be entitled to any vested amounts held by them or on their account in Aclaris’
401(k) savings plan, such amounts to be distributed to them or on their account in accordance with the plan terms
and/or as required by applicable law.

E. Equity  Awards:  As  of  the  Termination  Date,  to  the  extent  that  Employee  holds  Aclaris  equity  awards  that  are
outstanding as of the Termination Date, Employee’s rights and entitlements with respect to each such equity award
will be governed by the applicable Company equity plan and award agreement evidencing such award.

F. No  Other  Compensation  or  Benefits:    Employee  agrees  and  acknowledges  that,  except  for  the  payments  and
benefits  described  in  Paragraphs  1-3,  no  insurance  or  employment-related  benefits  of  any  type  will  be  provided,
accrue, or mature after the Termination Date and Employee is not entitled to any right to payment for wages, bonus,
commission  or  other  amounts  of  any  nature  from  Employer,  and  Employee  agrees  that  all  wages,  bonuses,
commissions, incentives and other amounts owed to Employee, if any, have been paid to Employee.

4. Consideration from Employee

A. Release:    In  exchange  for  the  consideration  described  in  Paragraph  2,  Employee,  for  themselves,  their  heirs,
administrators, executors, agents, insurers, representatives, successors and assigns, hereby generally and specifically
releases, forever discharges and covenants not to sue Aclaris and/or any related entity, including, but not limited to
Aclaris,  and  all  of  Aclaris’  (and/or  any  related  entities’)  past  and  present  officers,  directors,  members,  agents,
attorneys,  employees,  predecessors,  parents,  subsidiaries,  affiliates,  benefit  plans  and  their  respective  heirs,
administrators,  executors,  successors  and  assigns  (all  of  which  are  hereinafter  collectively  called  the  “Released
Parties”),  from  any  and  all  demands,  claims,  debts,  lawsuits,  or  causes  of  action  (collectively,  “claims”),  both
known and unknown, whether arising under or out of a local, state or federal statute, including, but not limited to,
ERISA, Title VII of the Civil Rights Act of 1964, as amended, the Age Discrimination in Employment Act of 1967,
as  amended  (the  “ADEA”),  the  Civil  Rights  Act  of  1991,  the  Worker  Adjustment  and  Retraining  Notification
(“WARN”) Act, 42 U.S.C. §1981 the Americans with Disabilities Act of 1990,  the Pennsylvania Human Relations
Act – 43 P.S. § 951, et seq., the Pennsylvania Minimum Wage Act – 43 P.S. § 333.101, et seq., the Pennsylvania
Whistleblower Law – 43 P.S. § 1421, et seq., the Pennsylvania Equal Pay Law, as amended – 43 P.S. § 336.1, et
seq., the Pennsylvania Workers Compensation Act - 77 PS. § 1, et seq., the Pennsylvania Worker and Community
Right to Know Act – 35 Pa. Cons. Stat. Ann. § 7301, and any statute or law of the United States, the Commonwealth
of Pennsylvania, or any other state not mentioned above under which Employee may waive rights, and any claims
based upon the law of any state or municipality which Employee now has, or which were or could have been made
on  account  of  Employee’s  employment  with  Employer,  including  their  separation  from  Employer,  and  any
transaction  or  occurrence  between  Employee  and  Employer  at  any  time  during  such  employment  and  after
separation up to the time of executing this Agreement, any regulation or

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SEPARATION AGREEMENT, WAIVER AND RELEASE

common  law,  and  including,  but  not  limited  to,  those  claims  relating  to  emotional  distress,  mortal  anguish,  libel,
slander,  defamation,  negligence,  gross  negligence,  bad  faith,  personal  injury,  workers  compensation,  or  alleged
discrimination of any kind (including age discrimination), breach of contract or public policy, wrongful or retaliatory
discharge, or personal or business injury, and all damages (including contract, compensatory, punitive or liquidated
damages) or equitable relief, for or by reason of any matter, incident or thing from the beginning of time up to the
date Employee executes this Agreement, whether known or unknown, including but not limited to, those matters,
incidents  or  things  arising  out  of  their  employment  with  Aclaris  or  any  related  entity  or  the  termination  of  such
employment.  Employee  expressly  waives  the  benefits  of  any  statute  or  rule  of  law  which,  if  applied  to  this
Agreement,  would  otherwise  exclude  from  its  binding  effect  any  claim(s)  against  any  Released  Party  not  now
known  by  Employee  to  exist.  Except  as  necessary  to  enforce  this  Agreement,  this  Paragraph  is  intended  by
Employee and Aclaris to be a general release and a covenant not to sue which extinguishes all claims and precludes
any attempt by Employee to initiate any litigation against Aclaris or any other Released Party regarding any matter,
incident, or thing which occurred up to the date Employee executes this Agreement.

B. Protected Activity: Nothing in this Agreement prohibits or limits Employee’s ability to file a charge or voluntarily
communicate  with  the  Equal  Employment  Opportunity  Commission,  United  States  Department  of  Labor,  the
National Labor Relations Board, the Occupational Safety and Health Administration, the Securities and Exchange
Commission  or  any  other  federal,  state  or  local  government  agency  or  commission  (“Government Agencies”),  or
prevents  Employee  from  providing  confidential  information  to  Government  Agencies  (with  the  exception  of
information that is protected from discloser by any applicable law or privilege) or participating in any investigation
or  proceeding  that  may  be  conducted  by  any  Government  Agency,  including  providing  documents  or  other
information,  without  notice  to  Aclaris.  This  Agreement  does  not  limit  Employee’s  right  to  receive  an  award  for
information provided to any Government Agencies. On the other hand, Employee waives and releases any right to
any claims for money damages and equitable relief pursuant to the filing or prosecution of any administrative charge
against Aclaris or any resulting civil proceeding or lawsuit that may be commenced on Employee’s behalf for the
recovery of such relief, and which arises out of the matters that are and may be released in this Agreement.

C. Agreement Not To Participate: With the exception of actions protected in Paragraph 4(B) and/or filings, charges or
complaints protected under the whistleblower provisions of federal or state law or regulation, Employee agrees not
to file, participate in (financially or otherwise), or have filed on their behalf, any administrative or judicial charges,
grievances, complaints, petitions, suits or appeals against Aclaris and/or its officers, agents, employees, contractors,
divisions, directors, parent, subsidiary, and affiliated corporations, together with their predecessors, successors and
assigns because of any act or omission of Aclaris released by this Agreement.

D. Waiver of Right to Assist Others: Employee understands that if this Agreement was not signed, Employee would
have the right to voluntarily assist other individuals or entities in bringing claims against the Released Parties. To the
maximum  extent  allowed  by  applicable  law,  Employee  waives  the  right  to  voluntarily  assist  other  individuals  or
entities in bringing claims against the Released Parties, and unless Employee’s assistance is specifically sought by a
governmental entity or compelled by applicable law or valid court order, Employee shall not aid or assist others in
the pursuit of any claims they may make against the Released Parties. Employee further agrees not to testify in any
lawsuit  or  other  court  proceeding  that  involves  or  affects  Aclaris  without  the  prior  consent  of  Aclaris  or  unless
compelled  by  court  order  and  then  only  after  immediately  giving  reasonable  notice  to  Aclaris  (other  than  in
connection with proceedings protected under the whistleblower provisions of federal or state law or regulation).

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SEPARATION AGREEMENT, WAIVER AND RELEASE

E. Other Rights:  Notwithstanding  the  foregoing,  nothing  contained  in  this  Agreement  shall  in  any  way  diminish  or
impair: (i) any rights Employee may have to accrued compensation; (ii) Employee’s ability to bring proceedings to
enforce this Agreement; or (iii) any claims Employee may have that cannot be waived under applicable law, such as
unemployment benefits, workers’ compensation and disability benefits.

5. Return of Property: Employee will not in the future use and shall immediately return all Aclaris property, documents
and other materials prepared, used by, or delivered to Employee during Employee’s employment. This property includes,
but  is  not  limited  to:  all  company  keys,  cards,  materials,  laptop  computers  and  other  company  property,  including
without  limitation,  all  confidential  and/or  proprietary  business,  financial  or  technical  information  (excluding  wages)
such as, without limitation, writings, documents, manuals, notebooks, reports, audio/video work, inventions, formulas,
processes, technical know-how, machines, compositions, computer software, microfiche, accounting methods, business
plans  and  information  systems  including  such  materials,  information  and  data  which  are  in  machine  readable  form  or
otherwise and any information gained through discussions and/or meetings, etc. of Aclaris, if they have not already done
so.

6. Breach of Agreement: The consideration outlined in Paragraph 2 is contingent upon Employee performing all duties
stated  in  the  Agreement.  If  Employee  breaches  any  part  of  the  Agreement  or  has  misrepresented  any  fact,  such
consideration  shall  be  void,  and  Aclaris  may  pursue  all  remedies  available  at  law  or  equity  to  remedy  that  breach  or
misrepresentation. In addition, if Employee breaches this Agreement after payment hereunder has been made, Aclaris
shall be entitled to have the payment refunded pursuant to an adjudication under Paragraph 21 hereof. This provision
shall not limit in any way a claim for damages caused by her breach of this Agreement.

7. Denial of Liability: The Agreement shall not be considered or offered as an admission by or evidence against Aclaris of

any violation of any law or wrongdoing of any kind.

8. References:    In  accordance  with  Aclaris’  usual  policies,  when  responding  to  requests  related  to  Employee’s  future
employment  or  references  for  Employee,  Aclaris  will  provide  only  information  regarding  her  employment  start  date,
Termination  Date  and 
to  Human  Resources  at
job 
humanresources@aclaristx.com.

requests  should  be  directed 

  Any  such 

titles. 

9. Transition  and  Cooperation:  Employee  acknowledges  Employee’s  existing  obligation  under  Paragraph  3.4  of  the
Employment  Agreement  to  cooperate  during  the  Severance  Period  (as  defined  in  the  Employment  Agreement).
Employee therefore will fully cooperate with Aclaris to affect a professional, cooperative transition of Employee work
and responsibilities. Employee further agrees, upon Aclaris’ reasonable request, to cooperate to the best of their ability
with Aclaris and with any legal counsel, expert or consultant it may retain to assist it in connection with any judicial
proceeding, arbitration, administrative proceeding, governmental investigation or inquiry, internal investigation or audit
in  which  Aclaris  is  or  becomes  involved.    This  includes,  but  is  not  limited  to,  Employee  assistance,  cooperation  and
participation  with  respect  to  any  matter  in  which  they  have  information  relevant  to  the  inquiry,  or  in  which  they  are
identified as a witness.  Employee assistance, cooperation and participation includes, without limitation, preparing for
and  attending  depositions,  assisting  in  answering  factual  questions  for  discovery,  and  preparing  for  and  attending  any
hearing or trial as a witness.  Aclaris agrees to reimburse Employee for any reasonable out of pocket expenses incurred
as a result of their assistance, cooperation and participation.  In addition, Aclaris will pay Employee a reasonable amount
of compensation as agreed by the parties in good faith as compensation for the time and effort required in providing the
requested assistance. Employee will promptly notify Aclaris if they are subpoenaed by an person or entity (other than
any Governmental Agency) to give information or testimony that in any

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SEPARATION AGREEMENT, WAIVER AND RELEASE

way relates to their employment with or representation of Aclaris. Employee agrees they will testify truthfully in all such
matters or proceedings.  Nothing in this Agreement is intended to be or may be construed in any way as being dependent
upon or contingent on the content of Employee’s testimony.

10. Mutual  Non-Disparagement:    Both  Employee  and  Employer  agree  not  to  disparage  the  other  party,  and  the  other
party’s  officers,  directors,  employees,  shareholders  and  agents,  in  any  manner  likely  to  be  harmful  to  them  or  their
business, business reputation or personal reputation; provided that both Employee and Employer will respond accurately
and  fully  to  any  question,  inquiry  or  request  for  information  when  required  by  legal  process.    Employer’s  obligations
under  this  Paragraph  are  limited  to  Employer’s  officers  with  knowledge  of  this  provision.  Notwithstanding  the
foregoing,  nothing  in  this  Agreement  shall  limit  Employee’s  right  to  voluntarily  communicate  with  any  Government
Agency or to discuss the terms and conditions of Employee’s employment with others to the extent expressly permitted
by Section 7 of the National Labor Relations Act.  In addition, nothing in this Paragraph or this Agreement is intended to
prohibit or restrain Employee in any manner from making disclosures protected under the whistleblower provisions of
federal or state law or regulation or other applicable law or regulation.

11. Reports  by  Employee:  Notwithstanding  anything  herein  to  the  contrary,  nothing  in  this  Agreement  shall  (i)  prohibit
Employee from making reports (including voluntary reports) of possible violations of federal law or regulation to any
governmental  agency  or  entity  in  accordance  with  the  provisions  of  and  rules  promulgated  under  Section  21F  of  the
Securities  Exchange  Act  of  1934,  as  amended,  or  Section  806  of  the  Sarbanes-Oxley  Act  of  2002,  or  making  other
disclosures  protected  under  the  whistleblower  provisions  of  federal  law  or  regulation,  (ii)  require  prior  approval  by
Aclaris  or  notification  to  Aclaris  of  any  such  report  or  (iii)  prevent  Employee  from  collecting  a  monetary  award  in
connection with such report.

12. No  Assignment  of  Claims:  Employee  represents  and  warrants  that  they  have  not  filed  and  has  not  sold,  assigned,
transferred, conveyed or othiswise disposed of to any third party, by operation of law or othiswise, any action, cause or
action, suit, debt, obligation, account, contract, agreement, covenant, guarantee, controversy, judgment, damage, claim,
counterclaim, liability, or demand of any nature whatsoever relating to any matter related to Aclaris or covered by this
Agreement.

13. Age  Release:  In  addition  to  the  provisions  contained  hereinabove,  and  by  execution  of  the  document,  Employee

expressly waives any and all rights to claims arising under the ADEA, and:

a. Employee  acknowledges  that  their  waiver  of  rights  or  claims  arising  under  the  ADEA  is  in  writing,  written  in  a

manner calculated to be understood, and is understood by Employee;

b. Employee expressly understands that the waiver refers to rights or claims arising under the ADEA;

c. Employee expressly understands that by execution of this Agreement, they do not waive any ADEA rights or claims

that may arise after the date this Agreement is executed;

d. Employee  acknowledges  that  the  waiver  of  their  rights  on  claims  arising  under  the  ADEA  is  in  exchange  for  the
consideration outlined above, which is above and beyond that to which Employee is otherwise entitled to receive
from Aclaris;

e. Employee acknowledges that Aclaris expressly advised Employee by this Agreement to consult with an attorney of

Employee’s choosing prior to executing this Agreement;

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SEPARATION AGREEMENT, WAIVER AND RELEASE

f. Employee has been advised by Aclaris that Employee is given at least 21 days after the date Employee receives this
Agreement within which to consider this Agreement. Employee further understands that the offer contained in this
Agreement will automatically be withdrawn and deemed null & void if they do not accept it on or before the 21st
day after Employee receives this Agreement from Aclaris. Employee cannot sign this Agreement, however, until
on or after the Termination Date;

g. Employee acknowledges that the waiver of rights or claims herein is made pursuant to 29 U.S.C. §626(f)(1);

h. Employee  understands  that  the  waiver  is  not  requested  in  connection  with  an  exit  incentive  or  other  employment

termination program;

i. Employee understands that they may revoke this Agreement by delivering to Aclaris their written revocation, if such
written  revocation  is  received  by  Aclaris  by  the  end  of  the  7th  day  following  Employee’s  execution  of  this
Agreement,  and  that  the  Agreement  shall  not  become  effective  or  enforceable  until  the  revocation  period  has
expired.

j. Employee understands that the signed acceptance of this Agreement and any written revocation of this Agreement,
as  well  as  any  correspondence  concerning  this  Agreement,  must  be  delivered  to  Aclaris’  Legal  Department  as
follows:

Legal Department
Aclaris Therapeutics
701 Lee Road, Suite 103
Wayne, Pennsylvania 19087
legal@aclaristx.com

14. Entirety  of  Agreement:  Employee  warrants  that  no  promise  or  inducement  to  enter  into  this  Agreement  has  been
offered or made except as set forth in this Agreement, that they are entering into this Agreement voluntarily and without
reliance on any statement or representation made on behalf of Aclaris or any related entity, and that the consideration
stated herein is the sole consideration for this Agreement. This Agreement, together with the Employment Agreement,
constitutes the entire agreement between the parties with regard to all matters addressed herein. It cannot be amended
except  by  a  writing  executed  by  both  Employee  and  Aclaris.  Notwitstanding  anything  contained  in  this  Paragraph,
Employee  further  acknowledges  and  understands  Employee  is  still  subject  to  the  terms  and  conditions  of  the
Confidentiality, Invention Rights and Non-Solicitation Agreement as may be applicable to their post-employment, which
remains in full force and effect; provided that in the event of a conflict of any provisions between this Agreement and
the  Employee’s  Confidentiality,  Invention  Rights  and  Non-Solicitation  Agreement,  the  provisions  of  this  Agreement
control.

15. Severability: If any provisions, section, subsection or other portion of this Agreement shall be determined by any court
of competent jurisdiction to be invalid, illegal or unenforceable in whole or in part, and such determination shall become
final, such provision or portion shall be deemed to be severed or limited, but only to the extent required to render the
remaining provisions and portions of this Agreement enforceable. This Agreement as thus amended shall be enforced so
as  to  give  effect  to  the  intention  of  the  parties  insofar  as  that  is  possible.  In  addition,  the  parties  hereby  expressly
empower a court of competent jurisdiction to modify any term or provision of this Agreement to the extent necessary to
comply with existing law and to enforce this Agreement as modified.

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SEPARATION AGREEMENT, WAIVER AND RELEASE

16. Parties  Bound:  This  Agreement  shall  be  binding  upon  the  heirs,  assigns,  administrators,  executors  and  legal

representatives of Employee and shall inure to the benefit of Aclaris and its successors and assigns.

17. Remedies:  Employee  acknowledges  that  the  damages  which  will  be  suffered  by  Aclaris  by  a  breach  of  any  term  or
provision of this Agreement may be continuing, irreparable and difficult to ascertain in monetary worth. Consequently,
in  addition  to  any  action  at  law  for  damages,  Employee  agrees  Aclaris  may  have  equitable  relief,  including  specific
performance and injunction, to ensure and enforce their performance of and adherence to such obligations to which they
have voluntarily agreed. If such action becomes necessary, Employee further agrees to pay reasonable attorneys’ fees
and expenses incurred by Aclaris if Aclaris at all prevails.

18. Rule of Construction: The rule of construction to the effect that ambiguities are to be resolved against the drafting party

shall not be employed in interpreting this Agreement.

19. No Waiver:  The failure of a party to insist on the strict observation or performance of any provision of this Agreement
or  to  exercise  any  right  to  which  a  party  may  be  entitled  hereunder  shall  not  impair  or  preclude  the  enforcement  or
exercise of such provision or right in the future or be construed as a waiver thereof.

20. Modification:  The  parties  agree  that  this  Agreement  may  not  be  modified,  altered,  or  changed  except  by  a  written

agreement signed by the parties.

21. Arbitration, Waiver Of Jury Trial, Consent To Jurisdiction/Venue, & Governing Law:  This Agreement shall be
governed by and construed in accordance with the laws of the Commonwealth of Pennsylvania.  Subject to the duty to
arbitrate set forth below, any action to enforce or construe this Agreement shall exclusively be initiated in any federal or
state  court  in  the  Commonwealth  of  Pennsylvania  having  jurisdiction  over  the  subject  matter,  and  Employee  hereby
consents  to  the  personal  jurisdiction  of  these  courts.    Subject  to  Aclaris’  right  to  seek  temporary,  preliminary,  and/or
permanent injunctive relief for violations of this Agreement, any dispute or controversy arising under or in connection
with  this  Agreement  or  any  other  agreements  as  set  forth  in  Paragraph  14,  above,  shall  be  resolved  exclusively  by
binding arbitration in Pennsylvania in accordance with the Resolution of Employment Dispute Rules of the American
Arbitration Association or the Employment Arbitration Rules and Procedures of JAMS, at Employer’s sole discretion
(“Arbitrator”), and the Pennsylvania Uniform Arbitration Act, 42 Pa. C.S.A. § 7303, before one arbitrator of exemplary
qualifications and stature, who shall be selected in accordance with the procedures of the Arbitrator.  The award of the
arbitrator shall be final and binding and judgment upon the award may be entered in any court of competent jurisdiction
as set forth above.  All fees and expenses of the arbitrator and all other expenses of the arbitration, except for attorneys’
fees, costs and witness expenses shall be paid by Aclaris.  Each Party shall bear its own witness expenses, costs, and
attorneys’ fees.  TO THE FULLEST EXTENT PERMITTED BY LAW, THE PARTIES HEREBY WAIVE THE
RIGHT TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF
THIS  AGREEMENT  OR  ANY  DEALINGS  BETWEEN  THE  PARTIES  RELATING  TO  THE  SUBJECT
MATTER  HEREOF.    EMPLOYEE  FURTHER  AGREES  THAT  ANY  CLAIMS  MUST  BE  ARBITRATED
SOLELY  ON  AN  INDIVIDUAL,  NON-CLASS  AND  NON-COLLECTIVE  BASIS,  AND  UNDER  NO
CIRCUMSTANCE  MAY  ANY  CLAIMS  BE  CONSOLIDATED  WITH  ANY  ARBITRATION,  ACTION  OR
LEGAL PROCEEDING INSTITUTED BY A THIRD PARTY FOR ANY PURPOSE.   This  provision,  including
the foregoing requirement that claims be asserted on an individual and not class basis, shall be interpreted in accordance
with and subject to the Federal Arbitration Act, and all questions of arbitrability shall be

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SEPARATION AGREEMENT, WAIVER AND RELEASE

referred to the arbitrator, to be determined in accordance with the Arbitrator rules referenced above, and not any Court.

22. No Reliance: The Parties have not relied on any representations, promises, or agreements of any kind made to them in

connection with this Agreement, except for those set forth in this Agreement.

23. Effective Date: This Agreement shall be effective upon the expiration of the revocation period set forth in Paragraph 13

above (the “Effective Date”).

24. Section Headings: Section headings are for convenience of reference only and shall not be used to interpret or construe
the  terms  of  this  Agreement.  The  invalidity  of  any  provision  of  this  Agreement  (or  any  interpretation  or  construction
thereof)  shall  not  affect  the  validity  and  enforceability  of  the  remaining  provisions  of  this  Agreement  or  its  terms  or
interpretations.

25. Counterparts: Separate copies of this document shall constitute original documents that may be signed separately but
that  together  will  constitute  one  single  agreement.  This  Agreement  will  not  be  binding  on  any  party,  however,  until
signed  by  all  parties  or  their  representatives.  The  parties  agree  that  execution  of  this  Agreement  by  industry  standard
electronic  signature  software  and  /or  by  exchanging  PDF  signatures  shall  have  the  same  legal  force  and  effect  as  the
exchange  of  original  signatures,  and  that  in  any  proceeding  arising  under  or  relating  to  this  Agreement,  each  party
hereby  waives  any  right  to  raise  any  defense  or  waiver  based  upon  execution  of  this  Agreement  by  means  of  such
electronic signatures or maintenance of the executed agreement electronically.

[THE REMAINDER OF THIS PAGE IS INTENTIONALLY BLANK]

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SEPARATION AGREEMENT, WAIVER AND RELEASE

EMPLOYEE HEREBY ACKNOWLEDGES SHE HAS READ THE SEPARATION AGREEMENT, WAIVER AND
RELEASE  CONSISTING  OF  8  PAGES  (INCLUSIVE  OF  SIGNATURE  PAGE)  AND  26  NUMBERED
PARAGRAPHS; SHE HAS HAD A REASONABLE PERIOD OF TIME WITHIN WHICH TO CONSIDER THIS
AGREEMENT  AND  FULLY  UNDERSTANDS  AND  ACCEPTS  ALL  OF  ITS  TERMS  OF  HER  OWN
VOLUNTARY FREE WILL; NO PROMISES OR REPRESENTATIONS HAVE BEEN MADE OTHER THAN AS
EXPRESSLY STATED HEREIN; SHE HAS BEEN ADVISED TO CONSULT WITH AN ATTORNEY AND HAD
AN ADEQUATE OPPORTUNITY TO DISCUSS THIS DOCUMENT WITH AN ATTORNEY AND HAS DONE SO
OR  HAS  VOLUNTARILY  ELECTED  NOT  TO  DO  SO;  AND  BY  EXECUTING  THIS  AGREEMENT  AND
ACCEPTING  THE  CONSIDERATIONS  OUTLINED  HEREIN  FROM  ACLARIS,  SHE  WILL  ABIDE  BY  THE
TERMS HEREOF. FURTHER,

THIS CONTRACT CONTAINS A BINDING ARBITRATION
PROVISION WHICH MAY BE ENFORCED BY THE PARTIES.

/s/ Douglas Manion
Douglas Manion

     ACLARIS THERAPEUTICS, INC.

By:

/s/ Neal Walker
Neal Walker
Chairman of the Board of Directors

Date: 2/4/2024

Date: 2/5/2024

Page 9 of 9

Exhibit 10.22

January 31, 2024

VIA EMAIL
Neal Walker

Dear Neal:

This agreement contains the terms of your position as Interim Chief Executive Officer and President (the “Interim
CEO”) of Aclaris Therapeutics, Inc. (the “Company”) with an effective date of January 17, 2024.

As  Interim  CEO,  you  will  report  directly  to  the  Board  of  Directors  of  the  Company  (the  “Board”)  and  will
perform  such  duties,  consistent  with  the  Interim  CEO  position,  as  will  reasonably  be  assigned  to  you  by  the
Board. This is intended to be a temporary position and is an at-will appointment, and may be terminated by the
Board at any time. During the term of your employment, you will remain a member of the Board, of which you
are the Chair.

You will perform your services hereunder primarily from your home (or other remote work location) but agree to
perform  your  services  from  the  Company’s  offices  in  Wayne,  PA  and  St.  Louis,  MO  from  time  to  time,  in
accordance with the needs of the business. You may be required to travel from time to time. You will be eligible
for reimbursement of reasonable, necessary expenses incurred by you in connection with the performance of your
duties hereunder in accordance with the Company’s expense reimbursement policies and procedures.

During your term as Interim CEO, you will receive compensation at the rate of $41,666.67 per month (equivalent
to annualized compensation of $500,000), subject to standard federal and state withholding requirements, which
will be paid in accordance with the Company’s regular payroll practices. During the term of your employment,
you will be eligible to receive a cash bonus equal to 60% of your annualized base salary (pro rated based on your
time of service), based upon the actual achievement by you of the performance goals established by the Board, as
determined  by  the  Board  in  its  sole  discretion  (the  “Performance  Goals”).  Any  cash  bonus  amount  payable
pursuant to this letter agreement shall be paid to you within forty-five (45) days of the Board’s determination of
your attainment of the Performance Goals, but in no event later than two and one- half (2 1/2) months following
the end of the fiscal year in which the Performance Goals were achieved as determined by the Board in its sole
discretion. In all events, any earned bonus will be paid not later than March 15 of the year following the year in
which your right to such amount became vested. For the avoidance of doubt, you do not have to be employed by
the Company on the date such bonus is approved or paid by the Company to receive such bonus.

You will not be eligible to participate in the Company’s severance plans. You will be eligible to participate on the
same basis as similarly situated employees in the Company’s employee benefit plans and programs, as they may
be interpreted, adopted, revised or deleted from time to time in

701 Lee Road, Suite 103 • Wayne, PA 19087 • www.aclaristx.com • Main: 484-324-7933

the  Company’s  sole  discretion,  subject  to  and  on  a  basis  consistent  with  the  terms,  conditions  and  overall
administration of such plans and programs. Your employment will be subject to the Company’s personnel policies
and procedures as they may be interpreted, adopted, revised or deleted from time to time in the Company’s sole
discretion.

During  the  term  of  your  employment,  you  will  not  be  eligible  for  compensation  (either  in  the  form  or  cash  or
equity)  under  the  Company’s  non-employee  director  compensation  program.  You  have  previously  been  granted
one or more equity awards by the Company in connection with your service as a director or officer, which grant(s)
shall  continue  to  vest  and  which  shall  continue  to  be  governed,  in  each  case  in  all  respects  by  the  terms  of  the
applicable equity agreements, grant notices, equity plans and other agreements between you and the Company.

Upon approval by the Board or authorized committee thereof, you will be granted a nonqualified stock option (the
“Option”) to purchase 497,000 shares of the Company’s common stock (the “Common Stock”)  and  a  restricted
stock  unit  award  (“RSU  Award”)  for  142,000  shares  of  Common  Stock  under  the  Company’s  2015  Equity
Incentive  Plan  (the  “Plan”).  The  Option  will  have  a  per  share  exercise  price  equal  to  the  closing  price  of  the
Comon Stock on the Nasdaq Global Select Market on the date of grant of the Option. The Option will vest and
become  exercisable,  and  the  RSU  Award  will  vest,  in  equal  monthly  installments  over  a  15-month  period
measured from the date of grant, subject to your Continuous Service (as defined in the Plan) as Interim CEO to
the Company, provided that in the event you cease to be Interim CEO but continue to provide Continuous Service
to the Company in any capacity, such Option and RSU Award will continue to vest in the event that the Board
determined  in  its  sole  discretion  that  you  achieved  the  Performance  Goals  prior  to  the  cessation  of  your
employment as Interim CEO. Each of the Option and RSU Award will accelerate vesting and exercisability in full
upon a Change in Control (as defined in the Plan). Each of the Option and RSU Award will be governed by the
terms of the Plan and an associated stock option grant agreement or restricted stock unit grant agreement.

The existing indemnification agreement between you and the Company will continue to govern your service as
Interim CEO. You have disclosed to the Board that you currently serve as a director of Aldeyra Therapeutics, Inc.,
ActiveProtectiveTechnologies, Inc., Myota Inc. and Zoomi, Inc., and the parties acknowledge that such work does
not conflict with or otherwise restrict your ability to become Interim CEO of the Company and fulfill your duties
to the Company in such capacity. Nothing in this offer should be construed to interfere with or otherwise restrict
in any way the rights of the Company and the Company’s stockholders to remove any individual from the Board
at any time in accordance with the Company’s certificate of incorporation, bylaws, any applicable agreements and
applicable law.

You acknowledge that as a result of your service as Interim CEO you have obtained and will obtain confidential
information and proprietary information relating to or provided by the Company and its affiliates. During and after
the term of your employment, you shall not use for your benefit or disclose confidential information, proprietary
information, knowledge or data relating to or provided by the Company and its affiliates and you agree to execute
the Company’s standard employee non-disclosure agreement upon the Company’s reasonable request.

701 Lee Road, Suite 103 • Wayne, PA 19087 • www.aclaristx.com • Main: 484-324-7933

To indicate your acceptance of the Company’s offer, please sign and date this letter in the space provided below
and  return  it  to  me.  This  letter  sets  forth  the  terms  of  your  service  as  Interim  CEO  and  supersedes  any  prior
representations  or  agreements  on  this  subject  matter,  whether  written  or  oral.  This  letter  will  be  construed  and
interpreted in accordance with the laws of the Commonwealth of Pennsylvania. This letter may not be modified or
amended  except  by  a  written  agreement,  signed  by  an  officer  of  the  Company  or  an  authorized  director  of  the
Board and by you.

We look forward to continue working with you in your new capacity.

Sincerely,

Aclaris Therapeutics, Inc.

By:/s/ Christopher Molineaux
Christopher Molineaux
Lead Independent Director
of the Board of Directors

I HAVE READ, UNDERSTAND AND AGREE FULLY TO THE FOREGOING AGREEMENT:

/s/ Neal Walker
Neal Walker

701 Lee Road, Suite 103 • Wayne, PA 19087 • www.aclaristx.com • Main: 484-324-7933

Subsidiaries of Aclaris Therapeutics, Inc.

Name of Subsidiary
Aclaris Life Sciences, Inc. 
Confluence Discovery Technologies, Inc.

Jurisdiction of Incorporation or
Organization
Delaware
Delaware

Exhibit 21.1

 
 
 
 
 
Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-212095) and
Form S-8 (Nos. 333-271718, 333-264813, 333-255922, 333-238079, 333-230614, 333-223922, 333-220149, 333-216703,
333-210379, and 333-207434) of Aclaris Therapeutics, Inc. of our report dated February 27, 2024 relating to the financial
statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP 
Philadelphia, Pennsylvania
February 27, 2024

1

 
 
Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER 
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Neal Walker, certify that:

1.    I have reviewed this annual report on Form 10-K of Aclaris Therapeutics, Inc. (the “registrant”);

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to
the period covered by this report;

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

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

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures
(as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange
Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our

supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known
to us by others within those entities, particularly during the period in which this report is being prepared;

(b)  Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed
under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally accepted accounting principles;

(c)  Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions
about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on
such evaluation; and

(d)  Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the

registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially
affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial

reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the
equivalent functions):

(a)  All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which

are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information;
and

(b)  Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s

internal control over financial reporting.

Date: February 27, 2024

/s/ Neal Walker
Neal Walker
Interim Chief Executive Officer & President
(principal executive officer)

 
 
Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER 
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Kevin Balthaser, certify that:

1.    I have reviewed this annual report on Form 10-K of Aclaris Therapeutics, Inc. (the “registrant”);

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to
the period covered by this report;

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

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

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures

(as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange
Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our

supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known
to us by others within those entities, particularly during the period in which this report is being prepared;

(b)  Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed
under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally accepted accounting principles;

(c)  Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions
about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on
such evaluation; and

(d)  Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the

registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially
affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial

reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the
equivalent functions):

(a)  All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which

are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information;
and

(b)  Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s

internal control over financial reporting.

Date: February 27, 2024

/s/ Kevin Balthaser
Kevin Balthaser
Chief Financial Officer
(principal financial officer and principal accounting officer)

 
 
CERTIFICATIONS OF
PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER
PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.1

Pursuant to the requirement set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended (the

“Exchange Act”), and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350), Neal Walker,
Interim Chief Executive Officer and President, of Aclaris Therapeutics, Inc. (the “Company”), and Kevin Balthaser, Chief
Financial Officer of the Company, each hereby certifies that, to the best of his knowledge:

1. The Company’s Annual Report on Form 10-K for the period ended December 31, 2023 (the “Annual Report”),
to which this Certification is attached as Exhibit 32.1, fully complies with the requirements of Section 13(a) or
Section 15(d) of the Exchange Act, and

2. The information contained in the Annual Report fairly presents, in all material respects, the financial condition
of the Company as of the end of the period covered by the Annual Report and results of operations of the
Company for the periods covered by the Annual Report.

In Witness Whereof, the undersigned have set their hands hereto as of the 27th day of February 2024.

/s/ Neal Walker
Neal Walker
Interim Chief Executive Officer & President

/s/ Kevin Balthaser
Kevin Balthaser
Chief Financial Officer

*  This certification accompanies the Form 10-K to which it relates, is not deemed filed with the Securities and Exchange
Commission and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933,
as amended, or the Exchange Act (whether made before or after the date of the Form 10-K), irrespective of any general
incorporation language contained in such filing.

 
 
ACLARIS THERAPEUTICS, INC.

INCENTIVE COMPENSATION RECOUPMENT POLICY

Exhibit 97.1

1.

INTRODUCTION

The  Compensation  Committee  (the  “Compensation  Committee”)  of  the  Board  of  Directors  (the  “Board”)  of  Aclaris
Therapeutics,  Inc.,  a  Delaware  corporation  (the  “Company”),  and  the  Board  have  determined  that  it  is  in  the  best  interests  of  the
Company  and  its  stockholders  to  adopt  this  Incentive  Compensation  Recoupment  Policy  (this  “Policy”)  providing  for  the  Company’s
recoupment of Recoverable Incentive Compensation that is received by Covered Officers of the Company under certain circumstances.
Certain capitalized terms used in this Policy have the meanings given to such terms in Section 3 below.

This Policy is designed to comply with, and shall be interpreted to be consistent with, Section 10D of the Exchange Act, Rule

10D-1 promulgated thereunder (“Rule 10D-1”) and Nasdaq Listing Rule 5608 (the “Listing Standards”).

2.

EFFECTIVE DATE

This Policy shall apply to all Incentive Compensation that is received by a Covered Officer on or after October 2, 2023 (the
“Effective  Date”).  Incentive  Compensation  is  deemed  “received”  in  the  Company’s  fiscal  period  in  which  the  Financial  Reporting
Measure specified in the Incentive Compensation award is attained, even if the payment or grant of such Incentive Compensation occurs
after the end of that period.

3.

DEFINITIONS

“Accounting  Restatement”  means  an  accounting  restatement  that  the  Company  is  required  to  prepare  due  to  the  material
noncompliance of the Company with any financial reporting requirement under the securities laws, including any required accounting
restatement to correct an error in previously issued financial statements that is material to the previously issued financial statements, or
that would result in a material misstatement if the error were corrected in the current period or left uncorrected in the current period.

“Accounting Restatement Date” means the earlier to occur of (a) the date that the Board, a committee of the Board authorized
to take such action, or the officer or officers of the Company authorized to take such action if Board action is not required, concludes, or
reasonably  should  have  concluded,  that  the  Company  is  required  to  prepare  an  Accounting  Restatement,  or  (b)  the  date  that  a  court,
regulator or other legally authorized body directs the Company to prepare an Accounting Restatement.

“Administrator” means the Compensation Committee or, in the absence of such committee, the Board.

“Code” means the U.S. Internal Revenue Code of 1986, as amended, and the regulations promulgated thereunder.

“Covered Officer” means each current and former Executive Officer.

“Exchange” means the Nasdaq Stock Market.

“Exchange Act” means the U.S. Securities Exchange Act of 1934, as amended.

“Executive Officer” means the Company’s president, principal financial officer, principal accounting officer (or if there is no
such accounting officer, the controller), any vice-president of the Company in charge of a principal business unit, division, or function
(such as sales, administration, or finance), any other officer who performs a policy-making function, or any other person who performs
similar policy-making functions for the Company. Executive officers of the Company’s parent(s) or subsidiaries are deemed executive
officers  of  the  Company  if  they  perform  such  policy-making  functions  for  the  Company.  Policy-making  function  is  not  intended  to
include policy-making functions that are not significant. Identification of an executive officer for purposes of this Policy would include at
a minimum executive officers identified pursuant to Item 401(b) of Regulation S-K promulgated under the Exchange Act.

“Financial  Reporting  Measures”  means  measures  that  are  determined  and  presented  in  accordance  with  the  accounting
principles  used  in  preparing  the  Company’s  financial  statements,  and  any  measures  derived  wholly  or  in  part  from  such  measures,
including  Company  stock  price  and  total  shareholder  return  (“TSR”).  A  measure  need  not  be  presented  in  the  Company’s  financial
statements or included in a filing with the SEC in order to be a Financial Reporting Measure.

“Incentive  Compensation”  means  any  compensation  that  is  granted,  earned  or  vested  based  wholly  or  in  part  upon  the

attainment of a Financial Reporting Measure.

“Lookback Period” means the three completed fiscal years immediately preceding the Accounting Restatement Date, as well as
any transition period (resulting from a change in the Company’s fiscal year) within or immediately following those three completed fiscal
years (except that a transition period of at least nine months shall count as a completed fiscal year). Notwithstanding the foregoing, the
Lookback Period shall not include fiscal years completed prior to the Effective Date.

“Recoverable  Incentive  Compensation”  means  Incentive  Compensation  received  by  a  Covered  Officer  during  the  Lookback
Period that exceeds the amount of Incentive Compensation that would have been received had such amount been determined based on
the Accounting Restatement, computed without regard to any taxes paid (i.e., on a gross basis without regarding to tax withholdings and
other deductions). For any compensation plans or programs that take into account Incentive Compensation, the amount of Recoverable
Incentive  Compensation  for  purposes  of  this  Policy  shall  include,  without  limitation,  the  amount  contributed  to  any  notional  account
based on Recoverable Incentive Compensation and any earnings to date on that notional amount. For any Incentive Compensation that is
based on stock price or TSR, where the Recoverable Incentive Compensation is not subject to mathematical recalculation directly from
the  information  in  an  Accounting  Restatement,  the  Administrator  will  determine  the  amount  of  Recoverable  Incentive  Compensation
based  on  a  reasonable  estimate  of  the  effect  of  the  Accounting  Restatement  on  the  stock  price  or  TSR  upon  which  the  Incentive
Compensation was received. The Company shall maintain documentation of the determination of that reasonable estimate and provide
such documentation to the Exchange in accordance with the Listing Standards.

“SEC” means the U.S. Securities and Exchange Commission.

4.

RECOUPMENT

(a)

Applicability  of  Policy.  This  Policy  applies  to  Incentive  Compensation  received  by  a  Covered  Officer  (i)  after
beginning services as an Executive Officer, (ii) who served as an Executive Officer at any time during the performance period for such
Incentive Compensation, (iii) while the Company had a class of securities listed on a national securities exchange or a national securities
association, and (iv) during the Lookback Period.

(b)

Recoupment Generally.  Pursuant to the provisions of this Policy, if there is an

2

Accounting Restatement, the Company must reasonably promptly recoup the full amount of the Recoverable Incentive Compensation,
unless  the  conditions  of  one  or  more  subsections  of  Section  4(c)  of  this  Policy  are  met  and  the  Compensation  Committee,  or,  if  such
committee  does  not  consist  solely  of  independent  directors,  a  majority  of  the  independent  directors  serving  on  the  Board,  has  made  a
determination that recoupment would be impracticable. Recoupment is required regardless of whether the Covered Officer engaged in
any misconduct and regardless of fault, and the Company’s obligation to recoup Recoverable Incentive Compensation is not dependent
on whether or when any restated financial statements are filed.

(c)

Impracticability of Recovery. Recoupment may be determined to be impracticable if, and only if:

(i)

the  direct  expense  paid  to  a  third  party  to  assist  in  enforcing  this  Policy  would  exceed  the  amount  of  the
applicable Recoverable Incentive Compensation; provided that, before concluding that it would be impracticable to recover any
amount  of  Recoverable  Incentive  Compensation  based  on  expense  of  enforcement,  the  Company  shall  make  a  reasonable
attempt to recover such Recoverable Incentive Compensation, document such reasonable attempt(s) to recover, and provide that
documentation to the Exchange in accordance with the Listing Standards; or

(ii)

recoupment  of  the  applicable  Recoverable  Incentive  Compensation  would  likely  cause  an  otherwise  tax-
qualified  retirement  plan,  under  which  benefits  are  broadly  available  to  employees  of  the  Company,  to  fail  to  meet  the
requirements of Code Section 401(a)(13) or Code Section 411(a) and regulations thereunder.

(d)

Sources  of  Recoupment.    To  the  extent  permitted  by  applicable  law,  the  Administrator  shall,  in  its  sole  discretion,
determine  the  timing  and  method  for  recouping  Recoverable  Incentive  Compensation  hereunder,  provided  that  such  recoupment  is
undertaken  reasonably  promptly.  The  Administrator  may,  in  its  discretion,  seek  recoupment  from  a  Covered  Officer  from  any  of  the
following sources or a combination thereof, whether the applicable compensation was approved, awarded, granted, payable or paid to the
Covered Officer prior to, on or after the Effective Date: (i) direct repayment of Recoverable Incentive Compensation previously paid to
the  Covered  Officer;  (ii)  cancelling  prior  cash  or  equity-based  awards  (whether  vested  or  unvested  and  whether  paid  or  unpaid);  (iii)
cancelling  or  offsetting  against  any  planned  future  cash  or  equity-based  awards;  (iv)  forfeiture  of  deferred  compensation,  subject  to
compliance with Code Section 409A; and (v) any other method authorized by applicable law or contract. Subject to compliance with any
applicable  law,  the  Administrator  may  effectuate  recoupment  under  this  Policy  from  any  amount  otherwise  payable  to  the  Covered
Officer,  including  amounts  payable  to  such  individual  under  any  otherwise  applicable  Company  plan  or  program,  e.g.,  base  salary,
bonuses  or  commissions  and  compensation  previously  deferred  by  the  Covered  Officer.  The  Administrator  need  not  utilize  the  same
method of recovery for all Covered Officers or with respect to all types of Recoverable Incentive Compensation.

(e)

No  Indemnification  of  Covered  Officers.  Notwithstanding  any  indemnification  agreement,  applicable  insurance
policy or any other agreement or provision of the Company’s certificate of incorporation or bylaws to the contrary, no Covered Officer
shall  be  entitled  to  indemnification  or  advancement  of  expenses  in  connection  with  any  enforcement  of  this  Policy  by  the  Company,
including paying or reimbursing such Covered Officer for insurance premiums to cover potential obligations to the Company under this
Policy.

(f)

Indemnification  of  Administrator.  Any  members  of  the  Administrator,  and  any  other  members  of  the  Board  who
assist in the administration of this Policy, shall not be personally liable for any action, determination or interpretation made with respect
to this Policy and shall be indemnified by the

3

Company to the fullest extent under applicable law and Company policy with respect to any such action, determination or interpretation.
The foregoing sentence shall not limit any other rights to indemnification of the members of the Board under applicable law or Company
policy.

5.

ADMINISTRATION

Except as specifically set forth herein, this Policy shall be administered by the Administrator. The Administrator shall have full
and final authority to make any and all determinations required under this Policy.  Any determination by the Administrator with respect
to  this  Policy  shall  be  final,  conclusive  and  binding  on  all  interested  parties  and  need  not  be  uniform  with  respect  to  each  individual
covered by this Policy. In carrying out the administration of this Policy, the Administrator is authorized and directed to consult with the
full  Board  or  such  other  committees  of  the  Board  as  may  be  necessary  or  appropriate  as  to  matters  within  the  scope  of  such  other
committee’s  responsibility  and  authority.  Subject  to  applicable  law,  the  Administrator  may  authorize  and  empower  any  officer  or
employee of the Company to take any and all actions that the Administrator, in its sole discretion, deems necessary or appropriate to
carry  out  the  purpose  and  intent  of  this  Policy  (other  than  with  respect  to  any  recovery  under  this  Policy  involving  such  officer  or
employee).

6.

SEVERABILITY

If any provision of this Policy or the application of any such provision to a Covered Officer shall be adjudicated to be invalid,
illegal or unenforceable in any respect, such invalidity, illegality or unenforceability shall not affect any other provisions of this Policy,
and  the  invalid,  illegal  or  unenforceable  provisions  shall  be  deemed  amended  to  the  minimum  extent  necessary  to  render  any  such
provision or application enforceable.

7.

NO IMPAIRMENT OF OTHER REMEDIES

Nothing  contained  in  this  Policy,  and  no  recoupment  or  recovery  as  contemplated  herein,  shall  limit  any  claims,  damages  or
other legal remedies the Company or any of its affiliates may have against a Covered Officer arising out of or resulting from any actions
or  omissions  by  the  Covered  Officer.  This  Policy  does  not  preclude  the  Company  from  taking  any  other  action  to  enforce  a  Covered
Officer’s obligations to the Company, including, without limitation, termination of employment and/or institution of civil proceedings.
This Policy is in addition to the requirements of Section 304 of the Sarbanes-Oxley Act of 2002 that are applicable to the Company’s
Chief Executive Officer and Chief Financial Officer and to any other compensation recoupment policy and/or similar provisions in any
employment,  equity  plan,  equity  award,  or  other  individual  agreement,  to  which  the  Company  is  a  party  or  which  the  Company  has
adopted or may adopt and maintain from time to time.

8.

AMENDMENT; TERMINATION

The Administrator may amend, terminate or replace this Policy or any portion of this Policy at any time and from time to time
in  its  sole  discretion.  The  Administrator  shall  amend  this  Policy  as  it  deems  necessary  to  comply  with  applicable  law  or  any  Listing
Standard.

9.

SUCCESSORS

This Policy shall be binding and enforceable against all Covered Officers and, to the extent required by Rule 10D-1 and/or the

applicable Listing Standards, their beneficiaries, heirs, executors, administrators or other legal representatives.

4

10.

REQUIRED FILINGS

The Company shall make any disclosures and filings with respect to this Policy that are required by law, including as required

by the SEC.

*          *          *          *          *

5

ACLARIS THERAPEUTICS, INC.

INCENTIVE COMPENSATION RECOUPMENT POLICY

FORM OF EXECUTIVE ACKNOWLEDGMENT

I, the undersigned, agree and acknowledge that I am bound by, and subject to, the Aclaris Therapeutics, Inc. Incentive Compensation
Recoupment Policy, as may be amended, restated, supplemented or otherwise modified from time to time (the “Policy”). In the event of
any inconsistency between the Policy and the terms of any employment agreement, offer letter or other individual agreement with Aclaris
Therapeutics, Inc. (the “Company”) to which I am a party, or the terms of any compensation plan, program or agreement, whether or not
written, under which any compensation has been granted, awarded, earned or paid to me, the terms of the Policy shall govern.

In the event that the Administrator (as defined in the Policy) determines that any compensation granted, awarded, earned or paid to me
must  be  forfeited  or  reimbursed  to  the  Company  pursuant  to  the  Policy,  I  will  promptly  take  any  action  necessary  to  effectuate  such
forfeiture and/or reimbursement. I further agree and acknowledge that I am not entitled to indemnification, and hereby waive any right to
advancement of expenses, in connection with any enforcement of the Policy by the Company.

Agreed and Acknowledged:

Name:

Title:

Date: