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XOMA Royalty Corp.

xoma · NASDAQ Healthcare
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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, 2022
OR

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

FOR THE TRANSITION PERIOD FROM                      TO

Commission File Number 001-39801
XOMA CORPORATION

(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of incorporation or organization)

2200 Powell Street, Suite 310, Emeryville, California
(Address of principal executive offices)

52-2154066
(I.R.S. Employer Identification No.)

94608
(Zip Code)

Registrant’s telephone number, including area code: (510) 204-7200

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

Title of each class
Common Stock, $0.0075 par value
8.625% Series A Cumulative, Perpetual Preferred Stock, par value $0.05
Depositary Shares (each representing 1/1000th interest in a share of 8.375% Series B
Cumulative Perpetual Preferred Stock, par value $0.05)

Trading Symbol(s)
XOMA
XOMAP
XOMAO

Name of each exchange on which registered
The Nasdaq Global Market
The Nasdaq Global Market
The Nasdaq Global Market

Securities registered pursuant to Section 12(g) of the Act: None
Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. YES ☐ NO ☒
Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. YES ☐ NO ☒
Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding
12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YES ☒ NO ☐
Indicate  by  check  mark  whether  the  Registrant  has  submitted  electronically  every  Interactive  Data  File  required  to  be  submitted  pursuant  to  Rule  405  of  Regulation  S-T
(§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). YES ☒ NO ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company.
See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer
Non-accelerated filer

☐
☒

Accelerated filer
Smaller reporting company
Emerging growth company

☐
☒
☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial
accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate  by  check  mark  whether  the  registrant  has  filed  a  report  on  and  attestation  to  its  management’s  assessment  of  the  effectiveness  of  its  internal  control  over  financial
reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐
If  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 ☒
The aggregate market value of the voting and non-voting common equity held by non-affiliates of the Registrant, based on the closing price of the shares of common stock on the
Nasdaq Global Market on June 30, 2022, was $154,564,269.

Number of shares of Registrant’s Common Stock outstanding as of March 6, 2023 was 11,460,968.

Portions of the Registrant’s Definitive Proxy Statement relating to the Company’s 2023 Annual Meeting of Stockholders are incorporated by reference into Part III of this

DOCUMENTS INCORPORATED BY REFERENCE

Report.

 
 
 
 
Table of Contents

Glossary of Terms and Abbreviations

XOMA Corporation
2022 FORM 10-K ANNUAL REPORT
TABLE OF CONTENTS

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

PART II

Item 5.

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

PART III

Item 10.
Item 11.
Item 12.
Item 13.
Item 14.

PART IV

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

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

Directors, Executive Officers, and Corporate Governance
Executive Compensation
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Certain Relationships and Related Transactions, and Director Independence
Principal Accountant Fees and Services

Item 15.
Item 16.
SIGNATURES

Exhibits and Financial Statement Schedules
Form 10‑K Summary

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GLOSSARY OF TERMS AND ABBREVIATIONS

Abbreviations

Definition

At The Market Issuance Sales Agreement with B. Riley dated August 5, 2021

the Company's 2010 Long Term Incentive and Stock Award Plan, as amended

2010 Plan
2018 Common Stock ATM Agreement At The Market Issuance Sales Agreement with HCW dated December 18, 2018
2021 Series B Preferred Stock ATM
Agreement
‘40 Act
ACA

Investment Company Act of 1940
The Patient Protection and Affordable Care Act of 2010, as amended by the Health Care and
Education Reconciliation Act of 2010
Affimed N.V.
Affitech Research AS
the Company's Commercial Payment Purchase Agreement with Affitech dated October 6, 2021
Agenus, Inc. and certain affiliates
the Company's Royalty Purchase Agreement with Agenus dated September 20, 2018

Affimed
Affitech
Affitech CPPA
Agenus
Agenus RPA
Anti-TGFβ Antibody License Agreementthe Company's License Agreement with Novartis dated September 30, 2015
April 2022 Letter Agreement

Aronora
Aronora RPA
AstraZeneca
ASC
ASC 310
ASC 450
ASC 606
ASC 730
ASC 805
ASC 815
ASU
Bayer
Bioasis
Bioasis RPA
BLA
Black-Scholes Model
B. Riley
BVF
CCPA
CARES
cGMP
Chiesi
Chiron
Chiron Collaboration Agreement

Company
CPPA
CPRA
EC

the Letter Agreement to Officer Employment Agreement dated August 7, 2017, between XOMA
Corporation and Thomas Burns dated April 1, 2022
Aronora, Inc.
the Company's Royalty Purchase Agreement with Aronora dated April 7, 2019
AstraZeneca plc
Accounting Standards Codification
ASC Topic 310, Receivables
ASC Topic 450, Contingencies
ASC Topic 606, Revenue from Contracts with Customers
ASC Topic 730, Research and Development
ASC Topic 805, Business Combinations
ASC Topic 815, Derivatives and Hedging
Accounting Standards Update
Bayer Pharma AG
Bioasis Technologies, Inc. and certain affiliates
the Company's Royalty Purchase Agreement with Bioasis dated February 25, 2019
Biologic License Application
Black-Scholes Option Pricing Model
B. Riley Securities, Inc.
Biotechnology Value Fund, L.P.
California Consumer Privacy Act of 2018, collectively the Act and its regulations
Coronavirus Aid, Relief, and Economic Security
current Good Manufacturing Processes
Chiesi Farmaceutici S.p.A.
Chiron Corporation
the Company's Collaboration Agreement with Chiron dated February 27, 2004, as amended in
May 2005, July 2008 and September 2015
XOMA Corporation, including subsidiaries
Commercial Payment Purchase Agreement
California Privacy Rights Act
European Commission

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EMA
ESPP
EU
FCPA
FDA
GAAP
G&A
GDPR
Gevokizumab License Agreement
HCRP
HCW
HIPAA
ICE®

IP
Janssen
Kuros
Kuros RPA
Merck
Merck KGaA
Merck KGaA License Agreement

NDA
NIH
NOL
Novartis

November 2022 Letter Agreement
ObsEva
ObsEva IP Acquisition Agreement
Ology Bioservices

Organon
Organon License Agreement

Palo
Palo RPA
Pfizer
Regeneron
Amended Retention Plan
Retention Plan
Rezolute
Rezolute License Agreement

RPA
Roche
SEC
Second Bioasis RPA

European Medicines Agency
2015 Employee Stock Purchase Plan, as amended
European Union
U.S. Foreign Corrupt Practices Act of 1977, as amended
U.S. Food and Drug Administration
Generally accepted accounting principles
General and administrative
General Data Protection Regulation
the Company's License Agreement with Novartis dated August 24, 2017
Healthcare Royalty Partners II, L.P.
H.C. Wainwright & Co., LLC
Federal Health Insurance Portability and Accountability Act of 1996
Innate cell engager

Intellectual Property
Janssen Biotech, Inc.
Kuros Biosciences AG, Kuros US LLC and Kuros Royalty Fund (US) LLC, collectively
the Company's Royalty Purchase Agreement with Kuros dated July 14, 2021
Merck Sharp & Dohme Corp
Ares Trading SA
In-license agreement from Merck KGaA to ObsEva related to ebopiprant dated June 10, 2015 and
subsequently amended on July 8, 2016 (assumed by the Company as part of the ObsEva
Agreement)
New Drug Application
National Institutes of Health
net operating loss
Novartis Pharma AG, Novartis International Pharmaceutical Ltd., Novartis Institutes for
Biomedical Research, Inc. and/or Novartis Vaccines and Diagnostics, Inc.
November 1, 2022 amendment to the April 2022 Letter Agreement
ObsEva SA
the Company's IP Acquisition Agreement with ObsEva dated November 21, 2022
Ology Bioservices Inc. (formerly Nanotherapeutics Inc., now a wholly owned subsidiary of
National Resilience, Inc.)
Organon International GmbH
Out-license agreement to Organon from ObsEva dated July 26, 2021, related to the development
and commercialization of ebopiprant (assumed by the Company as part of the ObsEva IP
Acquisition Agreement)
Palobiofarma, S.L.
the Company's Royalty Purchase Agreement with Palo dated September 26, 2019
Pfizer, Inc.
Regeneron Pharmaceuticals, Inc.
October 25, 2022 amendment to the Retention Plan
Retention and Severance Plan dated March 31, 2022
Rezolute, Inc., formerly Antria Bio, Inc.
the Company's License Agreement with Rezolute dated December 6, 2017, as amended in March
2018, January 2019 and March 2020
Royalty Purchase Agreement
F. Hoffmann-La Roche AG
Securities and Exchange Commission
the Company's Royalty Purchase Agreement with Bioasis dated November 2, 2020

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Series A Preferred Stock
Series B Preferred Stock
Series A and Series B Preferred Stock

the 8.625% Series A cumulative, perpetual preferred stock issued in December 2020
the 8.375% Series B cumulative, perpetual preferred stock issued in April 2021
Series A Preferred Stock and Series B Preferred Stock, collectively

Series B Depositary Shares
Sonnet
Sonnet Collaboration Agreement

SOX
SVB
SVB Loan Agreement

SVB Loan

Takeda
Takeda Collaboration Agreement

TGFβ
VABYSMO
Viracta
Viracta RPA
XOMA

the depositary shares, each representing 1/1000th interest in a share of Series B Preferred Stock
Sonnet BioTherapeutics, Inc., formerly Oncobiologics, Inc.
the Company's Collaboration Agreement with Sonnet dated July 23, 2012, as amended in May
2019
Sarbanes-Oxley Act of 2002
Silicon Valley Bank
the loan and security agreement with SVB dated May 7, 2018, as amended  (terminated upon 
repayment in June 2021)
the loan with SVB pursuant to the SVB Loan Agreement (extinguished upon repayment in June 
2021)  
Takeda Pharmaceutical Company Limited
the Company's Collaboration Agreement with Takeda dated November 1, 2006, as amended in
February 2007 and February 2009
transforming growth factor beta
faricimab-svoa
Viracta Therapeutics, Inc.
the Company's Royalty Purchase Agreement with Viracta dated March 22, 2021
XOMA Corporation, a Delaware corporation, including subsidiaries

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PART I

This Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 27A of the Securities Act of
1933, as amended, or the Securities Act, Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, and the
Private  Securities  Litigation  Reform  Act  of  1995,  which  are  subject  to  the  “safe  harbor”  created  by  those  sections.  Forward-looking
statements are based on our management’s beliefs and assumptions and on information currently available to them. In some cases you can
identify  forward-looking  statements  by  words  such  as  “may,”  “will,”  “should,”  “could,”  “would,”  “expects,”  “plans,”  “anticipates,”
“believes,”  “estimates,”  “projects,”  “predicts,”  “potential,”  “intend”  and  similar  expressions  intended  to  identify  forward-looking
statements. Examples of these statements include, but are not limited to, statements regarding: our future operating expenses, our future
losses, the success of our strategy as a royalty aggregator, the assumptions underlying our business model; the extent to which issued and
pending  patents  may  protect  the  products  and  processes  in  which  we  have  an  ownership  or  royalty  interest  and  prevent  the  use  of  the
covered subject matter by third parties, the potential of our existing product candidates to lead to the development of commercial products,
our ability to receive potential milestone or royalty payments under license and collaboration agreements and the amount and timing of
receipt of those payments, and the impact of the evolving COVID-19 pandemic. These statements are based on assumptions that may not
prove accurate. Actual results could differ materially from those anticipated due to certain risks inherent in the biotechnology industry and
for our licensees engaged in the development of new products in a regulated market. Among other things: there can be no assurance that
our  revenues  or  expenses  will  meet  any  expectations  or  follow  any  trend(s);  we  may  be  unable  to  retain  our  key  employees;  litigation,
arbitration or other disputes with third parties may have a material adverse effect on us; our product candidates subject to our out-license
agreements  are  still  being  developed,  and  our  licensees’  may  require  substantial  funds  to  continue  development  which  may  not  be
available;  we  may  not  be  successful  in  entering  into  out-license  agreements  for  our  product  candidates;  if  our  therapeutic  product
candidates  do  not  receive  regulatory  approval,  our  third-party  licensees  will  not  be  able  to  manufacture  and  market  them;  products  or
technologies of other companies may render some or all of our product candidates noncompetitive or obsolete; we do not know whether
there  will  be,  or  will  continue  to  be,  a  viable  market  for  the  products  in  which  we  have  an  ownership  or  royalty  interest;  even  once
approved, a product may be subject to additional testing or significant marketing restrictions, its approval may be withdrawn or it may be
voluntarily taken off the market; and we and our licensees are subject to various state and federal healthcare related laws and regulations
that may impact the commercialization of our product candidates and could subject us to significant fines and penalties. These and other
risks, including those related to current economic and financial market conditions, are contained principally in Item 1, Business; Item 1A,
Risk Factors; Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations; and other sections of this
Annual Report on Form 10-K. Factors that could cause or contribute to these differences include those discussed in Item 1A, Risk Factors,
as well as those discussed elsewhere in this Annual Report on Form 10-K.

Forward-looking statements are inherently uncertain and you should not place undue reliance on these statements, which speak
only as of the date that they were made. These cautionary statements should be considered in connection with any written or oral forward-
looking statements that we may issue in the future. We do not undertake any obligation to release publicly any revisions to these forward-
looking statements after completion of the filing of this Annual Report on Form 10-K to reflect later events or circumstances or to reflect
the occurrence of unanticipated events.

In addition, statements that “we believe” and similar statements reflect our beliefs and opinions on the relevant subject. These
statements are based on information available to us as of the date of this Annual Report on Form 10-K. While we believe that information
provides  a  reasonable  basis  for  these  statements,  that  information  may  be  limited  or  incomplete.  Our  statements  should  not  be  read  to
indicate  that  we  have  conducted  an  exhaustive  inquiry  into,  or  review  of,  all  relevant  information.  These  statements  are  inherently
uncertain, and investors are cautioned not to unduly rely on these statements.

All references to “portfolio” in this Annual Report on Form 10-K are to milestone and/or royalty rights associated with a basket

of drug products in development.

We use our trademarks, trade names and services marks in this report as well as trademarks, trade names and service marks that
are the property of other organizations. Solely for convenience, trademarks and trade names referred to in this report appear without the ®
and ™ symbols, but those references are not intended to indicate, in any way, that

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we  will  not  assert,  to  the  fullest  extent  under  applicable  law,  our  rights  or  that  the  applicable  owner  will  not  assert  its  rights,  to  these
trademarks and trade names.

Risk Factors Summary

Below is a summary of material factors that make an investment in our securities speculative or risky. Importantly, this summary
does not address all of the risks and uncertainties that we face. Additional discussion of the risks and uncertainties summarized in this risk
factor summary, as well as other risks and uncertainties that we face, can be found under “Risk Factors” in Part I, Item 1A of this Annual
Report on Form 10-K. The below summary is qualified in its entirety by that more complete discussion of such risks and uncertainties. You
should consider carefully the risks and uncertainties described under “Risk Factors” in Part I, Item 1A of this Annual Report on Form 10-K
as part of your evaluation of the risks associated with an investment in our securities.

● Our acquisitions of potential future royalty and/or milestone payments may not produce anticipated revenues and/or may be
negatively  affected  by  a  default  or  bankruptcy  of  the  licensor(s)  or  licensee(s),  and  if  such  transactions  are  secured  by
collateral, we may be, or may become, under-secured by the collateral or such collateral may lose value and we will not be
able to recuperate our capital expenditures associated with the acquisition.

● Many of our potential royalty acquisitions may be associated with drug products that are in clinical development and have not
yet been commercialized. To the extent that such products are not successfully developed and commercialized, our financial
condition  and  results  of  operations  may  be  negatively  impacted.  Acquisitions  of  potential  royalties  associated  with
development stage biopharmaceutical product candidates are subject to a number of uncertainties.

● We depend on our licensees and royalty-agreement counterparties for the determination of royalty and milestone payments.
While  we  typically  have  primary  or  back-up  rights  to  audit  our  licensees  and  royalty-agreement  counterparties,  the
independent  auditors  may  have  difficulty  determining  the  correct  royalty  calculation,  errors,  may  be  undetectable  and
payment calculations may call for retroactive adjustments. We may have to exercise legal remedies to resolve any disputes
resulting from any such audit.

● The lack of liquidity of our acquisitions of future potential milestones and royalties may adversely affect our business and, if
we need to sell any of our acquired assets, we may not be able to do so at a favorable price, if at all. As a result, we may
suffer losses. We have sustained losses in the past, and we expect to sustain losses in the foreseeable future.

● The  ongoing  COVID-19  pandemic,  macroeconomic  conditions,  such  as  rising  inflation  rates,  uncertain  credit  and  global
financial  markets  and  supply  chain  disruptions,  and  geopolitical  events,  have  adversely  impacted  and  could  materially  and
adversely impact the future our licensees or royalty-agreement counterparties or their licensees, which could cause delays or
elimination  of  our  receipts  of  potential  milestones  and  royalties  under  our  licensing  or  royalty  and  milestone  acquisition
arrangements.

● Our royalty aggregator strategy may require that we register with the SEC as an “investment company” in accordance with
the Investment Company Act of 1940. If we were to become an “investment company” and be subject to the restrictions of
the  1940  Act,  those  restrictions  would  likely  require  significant  changes  in  the  way  we  do  business  and  add  significant
administrative burdens to our operations.

● Our royalty aggregator strategy may require us to raise additional funds to acquire milestone and royalty interests; we cannot
be certain that funds will be available or available at an acceptable cost of capital, and if they are not available, we may be
unsuccessful in acquiring milestone and royalty interests to sustain the business in the future.

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● Information available to us about the biopharmaceutical products underlying the potential royalties we buy may be limited

and therefore our ability to analyze each product and its potential future cash flow may be similarly limited.

● Our  future  income  is  dependent  upon  numerous  potential  milestone  and  royalty-specific  assumptions  and,  if  these
assumptions prove not to be accurate, we may not achieve our anticipated rates of returns. Reductions in potential milestone
or  royalty  payments  compared  to  expectations,  or  impairments  in  the  value  of  potential  milestones  and  royalties  acquired
could have a material adverse effect on our financial condition and results of operations.

● A large percentage of the calculated net present value of our portfolio is represented by a limited number of products. The
failure  of  any  one  of  these  products  to  move  forward  in  clinical  development  or  commercialization  may  have  a  material
adverse effect on our financial condition and results of operation.

● We rely heavily on license and collaboration relationships, and any litigation, arbitration or other disputes with our licensees,
collaborators and their partners or termination or breach of any of the related agreements could reduce the financial resources
available to us. In the event of any disagreement that cannot be resolved satisfactorily to us, we may end up being paid less
than anticipated on such product or involved in costly and time-consuming arbitration or litigation, which could materially
adversely affect our financial condition, results of operation and future prospects.

● Our potential milestone and royalty providers may rely on third parties to provide services in connection with their product
candidate development and manufacturing programs. The inadequate performance by or loss of any of these service providers
could adversely affect our potential milestone and royalty providers’ product candidate development.

● We may not be able to successfully identify and acquire potential milestone and royalty streams on other products, product
candidates, or programs, or other companies to grow and diversify our business, and, even if we are able to do so, we may not
be  able  to  successfully  manage  the  risks  associated  with  integrating  any  such  products,  product  candidates,  programs  or
companies into our business or we may otherwise fail to realize the anticipated benefits of these acquisitions.

● Our potential milestone and royalty providers face uncertain results of clinical trials of product candidates. If our potential
royalty providers’ therapeutic product candidates do not receive regulatory approval, our potential royalty providers will be
unable to market them.

● We do not know whether there will be, or will continue to be, a viable market for the product candidates in which we have an

ownership, milestone or royalty interest.

● If  we  and  our  potential  royalty  providers  are  unable  to  protect  our  intellectual  property,  in  particular  patent  protection  for
principal products, product candidates and processes in which we have an ownership or royalty interest, and prevent the use
of the covered subject matter by third parties, our potential royalty providers’ ability to compete in the market will be harmed,
and we may not realize our profit potential.

● We have a continuing obligation to pay quarterly dividends to holders of our Series A and Series B Preferred Stock, which

will be an on-going expenditure for us and may limit our ability to borrow additional funds. 

Item 1.   Business

Overview and Strategy

XOMA is a biotech royalty aggregator. We have a sizable portfolio of economic rights to future potential milestone and royalty

payments associated with partnered commercial and pre-commercial therapeutic candidates. Our

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portfolio was built through acquisitions of rights to future milestones and royalties that we have made since our royalty aggregator business
model  was  implemented  in  2017  combined  with  outlicensing  our  proprietary  products  and  platforms  from  our  legacy  discovery  and
development business. We expect that most of our future revenue will be based on payments we may receive for milestones and royalties
related to these programs.

Our strategy is to expand our portfolio by acquiring additional potential milestone and royalty revenue streams on drug product
candidates  from  third  parties.  Expanding  our  portfolio  through  these  acquisitions  can  allow  for  further  diversification  across  therapeutic
areas and development stages. Our ideal target acquisitions are in pre-commercial stages of development, have an expected long duration of
market exclusivity, have high revenue potential, and are partnered with a large pharmaceutical or biopharmaceutical enterprise.

Portfolio Highlights

The following table highlights key assets included in our portfolio of potential future milestone and royalty streams. This table

does not include all assets because certain assets are subject to confidentiality agreements.

COMPANY

ASSET NAME

Affimed

Affimed

Aronora

Aronora

Aronora

AstraZeneca

AFM13

AFM24

TARGET

CD30/CD16A

EGRF/CD16A

AB002 (proCase/E-WE thrombin) Protein kinase C

AB023 (xisomab, 3G3)

AB054

AZD2936

Factor XI

Factor XII

TIGIT/PD-1

ROYALTY RATE

Confidential

Confidential

Low single-digit

Low single-digit

Low single-digit

Low single-digit

Low single-digit

Low single-digit

AVEO Oncology

AV-299 (ficlatuzumab)

HGF

Bayer (Aronora RPA)

BAY1213790 (osocimab)

Factor XIa

Regeneron

CMP-001 (vidutolimod)

TLR9

High single-digit to double-digit

Chiesi (Bioasis RPA)

Lysosomal Storage Disorders
Enzymes

Enzyme replacement therapy Low single-digit

Compugen

Day One

COM902

DAY101 (tovorafenib)

TIGIT

Pan-RAF

Denovo Biopharma

vosaroxin

Topoisomerase II

Incyte (Agenus RPA)

INCAGN1876

Incyte (Agenus RPA)

INCAGN1949

Incyte (Agenus RPA)

INCAGN02390

Incyte (Agenus RPA)

INCAGN2385

Janssen Biotech

JNJ-63723283 (cetrelimab)

Merck (Agenus RPA)

Molecular Templates

MK-4830

MT-0169

Novartis

Novartis

Novartis

CFZ533 (iscalimab)

VPM087 (gevokizumab)

NIS793

GITR

OX-40

TIM-3

LAG-3

PD-1

ILT-4

CD-38

CD-40

IL-1ß

TGFß

Low single-digit

Mid-single-digit

High single-digit

Mid-single-digit

Mid-single-digit

Low to mid-single-digit

Low to mid-single-digit

0.75%

Low single-digit

4%

Mid-single-digit to low-teens

High single-digit to mid-teens

Mid-single-digit to low teens

Novartis (Palobiofarma RPA) NIR178

Adenosine A2a receptor

Low single-digit

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Ology Bioservices

G03-52-01

Botulinum neurotoxins

15%

Organon (ObsEva IP
Acquisition Agreement)

Palo

Palo

Palo

Palo

Palo

Rezolute

Rezolute

Roche

Takeda

Acquisitions

ebopiprant

PBF-680

PBF-677

PBF-999

PBF-1129

PBF-1650

RZ358

RZ402

Prostaglandin F2α (PGF2α)
receptor

Low- to mid-teens

Adenosine A1 receptor

Low single-digit

Adenosine A3 receptor

Low single-digit

Adenosine A2a receptor/
Phosphodiesterase 10 (PDE-
10)

Low single-digit

Adenosine A2b receptor

Low single-digit

Adenosine A3 receptor

Low single-digit

INSR

High single-digit to mid-teens

Plasma kallikrein

Low single-digit

faricimab (faricimab-svoa)

Angiopoietin-2 and VEGF-A 0.5%

TAK-079 (mezagitamab)

CD-38

4%

ObsEva Intellectual Property Acquisition Agreement

In  November  2022,  we  entered  into  the  ObsEva  IP  Acquisition  Agreement  pursuant  to  which  we  acquired  all  of  ObsEva’s
intellectual property (patents and know-how) and license agreement rights related to ebopiprant, an investigational compound previously
licensed by ObsEva from Merck KGaA. We also assumed ObsEva’s ongoing obligations under the Organon License Agreement and the
Merck  KGaA  License  Agreement.  Pursuant  to  the  Organon  License  Agreement,  XOMA  is  eligible  to  receive  up  to  $475.0  million  in
payments  for  ebopiprant  development,  commercialization  and  sales-based  milestones.    If  ebopiprant  is  successfully  commercialized,  we
will be entitled to receive royalties that range from low to mid-teens from Organon and will be required to make mid-single-digit royalty
payments to Merck KGaA.  We paid ObsEva a $15.0 million upfront payment at closing and will pay potential earn-out payments of up to
$97.5  million  for  development,  regulatory  and  sales-based  milestones,  representing  a  portion  of  what  we  will  receive  pursuant  to  the
Organon License Agreement.

Affitech Commercial Payment Purchase Agreement

In  October  2021,  we  entered  into  the Affitech  CPPA,  pursuant  to  which  we  purchased  a  future  stream  of  commercial  payment
rights to Roche’s faricimab from Affitech for an upfront payment of $6.0 million. We are eligible to receive commercial payments from
Roche  consisting  of  0.50%  of  future  net  sales  of  faricimab  for  a  ten-year  period  following  the  first  commercial  sales  in  each  applicable
jurisdiction.

In  January  2022,  Genentech,  a  member  of  the  Roche  group,  received  approval  from  the  FDA  to  commercialize  VABYSMO
(faricimab-svoa) for the treatment of wet, or neovascular, age-related macular degeneration and diabetic macular edema. Pursuant to the
Affitech CPPA, we paid Affitech a $5.0 million milestone tied to these U.S. marketing approvals.

In September 2022, in connection with Roche receiving approval from the European Commission to commercialize VABYSMO
for the treatment of neovascular or ‘wet’ age-related macular degeneration and visual impairment due to diabetic macular edema, we made
a $3.0 million milestone payment to Affitech pursuant to the terms of the Affitech CPPA. As a result of the EC Approval, we are eligible to
receive a 0.5% commercial payment stream for ten years from the first commercial sale of VABYSMO in Europe.

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In August 2022, we received $0.5 million from Roche representing the first commercial payment for sales of VABYSMO during

the first six months of 2022, and in February 2023 we received $2.4 million for sales of VABYSMO during the second half of 2022.

Kuros Royalty Purchase Agreement

In July 2021, we entered into the Kuros RPA, pursuant to which we acquired the rights to 100% of the potential future royalties
from commercial sales, which are tiered from high single-digit to low double-digits, and up to $25.5 million in pre-commercial milestone
payments  associated  with  an  existing  license  agreement  related  to  Checkmate  Pharmaceuticals’  vidutolimod  (CMP-001),  a  Toll-like
receptor 9 agonist, packaged in a virus-like particle, for an upfront payment of $7.0 million. We may pay additional sales-based milestones
to Kuros of up to $142.5 million representing a portion of the future royalties on commercial sales.

In May 2022, Regeneron completed its acquisition of Checkmate Pharmaceuticals resulting in a $5.0 million milestone payment to

Kuros.  Pursuant to the Kuros RPA, we were entitled to 50% of the milestone payment, which we received in July 2022.

Viracta Royalty Purchase Agreement

In March 2021, we entered into the Viracta RPA, pursuant to which we acquired the right to receive future royalties, milestones,
and  other  payments  related  to  two  clinical-stage  drug  candidates  for  $13.5  million.  The  first  candidate,  DAY101  (pan-RAF  kinase
inhibitor), is being developed by Day One Biopharmaceuticals, and the second candidate, vosaroxin (topoisomerase II inhibitor), is being
developed by Denovo Biopharma. We acquired the right to receive (i) up to $54.0 million in potential milestones, potential royalties on
sales, if approved, and other payments related to DAY101, excluding up to $20.0 million consideration retained by Viracta, and (ii) up to
$57.0 million in potential regulatory and commercial milestones and high single-digit royalties on sales related to vosaroxin, if approved.

Agenus Royalty Purchase Agreement

In  September  2018,  we  entered  into  the  Agenus  RPA,  pursuant  to  which  we  acquired  the  right  to  receive  33%  of  the  future
royalties  due  to Agenus  from  Incyte  (net  of  certain  royalties  payable  by Agenus  to  a  third  party)  and  10%  of  all  future  developmental,
regulatory and sales milestones on sales of six Incyte immuno-oncology assets. In addition, we acquired the right to receive 33% of the
future royalties due to Agenus from Merck and 10% of all future developmental, regulatory and sales milestones on sales of MK-4830, an
immuno-oncology  product  currently  in  clinical  development.  Pursuant  to  the Agenus  Royalty  Purchase Agreement,  our  share  in  future
potential development, regulatory and commercial milestones is up to $59.5 million, and the royalties have no limit. Under the terms of the
Agenus Royalty Purchase Agreement, we paid Agenus $15.0 million.

In November 2020, MK-4830 advanced to Phase 2 development stage. As a result of the advancement, Agenus earned a $10.0

million clinical development milestone pursuant to its license agreement with Merck, of which we received $1.0 million.

Bioasis Royalty Purchase Agreement

In  February  2019,  we  entered  into  the  Bioasis  RPA,  pursuant  to  which  we  acquired  future  milestone,  royalty  and  option  fee
payment  rights  from  Bioasis  for  product  candidates  that  are  being  developed  pursuant  to  a  License  Agreement  between  Bioasis  and
Prothena Biosciences Limited. Under the terms of the Bioasis RPA, we paid Bioasis an upfront cash payment of $0.3 million and will be
required to make contingent future cash payments of up to $0.2 million to Bioasis if and when the licensed product candidates reach certain
development milestones. As of December 31, 2021, none of the development milestones had been achieved. In addition, we were granted
an option to purchase a 1% royalty right on the next two license agreements entered into between Bioasis and third-party licensees subject
to certain payments and conditions as well as a right of first negotiation on the purchase of royalty rights on subsequent Bioasis license
agreements with third parties.

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In November 2020, we entered into the Second Bioasis RPA, pursuant to which we acquired potential future milestone and other
payments, and royalty rights from Bioasis for product candidates that are being developed pursuant to a research collaboration and license
agreement between Bioasis and Chiesi. We paid Bioasis $1.2 million upon closing of the Second Bioasis RPA for the purchased rights.

Aronora Royalty Purchase Agreement

In April 2019, we entered into the Aronora RPA, pursuant to which we acquired the rights to potential royalties and a portion of
upfront, milestone, and option payments associated with five anti-thrombotic hematology drug products in development: three candidates
subject to Aronora’s collaboration Bayer (the “Bayer Products”) and two additional early-stage candidates (the “non-Bayer Products”).

Under the terms of the Aronora RPA, we made a $6.0 million upfront payment to Aronora when the transaction closed on June 26,
2019, and in September 2019 we made an additional $3.0 million payment for the three Bayer Products that were active as of September 1,
2019. Pursuant to the Aronora RPA, if we receive $250.0 million in cumulative royalties on net sales per product, we will be required to
pay associated tiered milestones payments to Aronora in an aggregate amount of up to $85.0 million per product. The tiered milestones will
be  paid  based  on  various  royalty  tiers  prior  to  reaching  $250.0  million  in  cumulative  royalties  on  net  sales  per  product.  We  will  retain
royalties  per  product  in  excess  of  $250.0  million.  We  will  receive,  on  average,  low  single-digit  royalties  on  future  sales  of  the  Bayer
Products and 10% of all future developmental, regulatory and sales milestones related to the Bayer Products. In addition, we purchased
from Aronora  the  right  to  receive  low  single-digit  percentage  of  net  sales  of  the  non-Bayer  Products  and  10%  of  all  future  payments,
including upfront payments, option payments and developmental, regulatory and sales milestone payments on potential future sales of the
non-Bayer Products. In July 2020, Bayer elected to not exercise its option on the third Bayer Product and that product is now subject to the
same economics as the non-Bayer Products.

Palobiofarma Royalty Purchase Agreement

In September 2019, we entered into the Palo RPA, pursuant to which we acquired the rights to potential royalty payments in low
single-digit  percentages  of  aggregate  net  sales  associated  with  six  drug  candidates  in  various  clinical  development  stages,  targeting  the
adenosine pathway with potential applications in solid tumors, non-Hodgkin’s lymphoma, asthma/chronic obstructive pulmonary disease,
ulcerative  colitis,  idiopathic  pulmonary  fibrosis,  lung  cancer,  psoriasis,  nonalcoholic  steatohepatitis  and  other  indications  (the  “Palo
Licensed Products”) that are being developed by Palo. Novartis is a development partner on NIR178, one of the Palo Licensed Products,
and NIR178 is being developed pursuant to a license agreement between Palo and Novartis. Under the terms of the Palo RPA, we paid Palo
$10.0 million for the rights to potential royalty payments on future sales of the Palo Licensed Products.

Selected Programs Underlying Our Portfolio

Historically,  we  have  licensed  product  candidates  or  provided  research  and  development  collaboration  services  to  world-class
organizations,  such  as  Novartis  and Takeda,  in  pursuit  of  new  antibody  products  under  which  we  are  eligible  to  receive  potential  future
milestone payments and royalties. The following is a summary of material license and collaboration agreements that represent a significant
component of our portfolio.

Novartis – Anti-TGFβ Antibody (NIS793)

In September 2015, we and Novartis entered into the Anti-TGFβ Antibody License Agreement under which we granted Novartis
an  exclusive,  worldwide,  royalty-bearing  license  to  our  anti-TGFβ  antibody  program  (“NIS793”).  Novartis  is  solely  responsible  for  the
development and commercialization of the antibodies and products containing the antibodies arising from this program.

Under the Anti-TGFβ Antibody License Agreement, we received a $37.0 million upfront fee, and were eligible to receive up to a
total of $480.0 million in development, regulatory and commercial milestones. We also are eligible to receive royalties on sales of licensed
products, which are tiered based on sales levels and have percentage rates ranging from mid-single-digits to low double-digits. Novartis’
obligation to pay royalties with respect to a particular product and

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country will continue for the longer of the date of expiration of the last valid patent claim covering the product in that country, or ten years
from the date of the first commercial sale of the product in that country. This program is currently in clinical testing.

In October 2020, we earned a $25.0 million milestone upon the dosing of the first patient in Novartis’ first NIS793 Phase 2 clinical
trial. As  specified  under  the  terms  the Anti-TGFβ  Antibody  License Agreement,  we  received  $17.7  million  in  cash  and  the  remaining
balance of $7.3 million was recognized as a reduction to our debt obligation to Novartis.

In July 2021, Novartis announced the FDA had granted Orphan Drug Designation to NIS793 in combination with standard of care

chemotherapy for the treatment of pancreatic cancer.

In October 2021, we earned a $35.0 million milestone payment upon dosing of the first patient in Novartis’ first NIS793 Phase 3
clinical  trial.  We  are  eligible  to  receive  remaining  milestones  up  to  a  total  of  $410.0  million  under  the  Anti-TGFβ  Antibody  License
Agreement. Upon receipt of regulatory approval to commercialize NIS793, we will receive tiered royalties on net product sales that range
from the mid-single-digit to the low double-digits percentage rate.

Novartis – Anti-IL-1β Antibody (VPM087)

In  August  2017,  we  and  Novartis  entered  into  the  Gevokizumab  License  Agreement,  under  which  we  granted  Novartis  an
exclusive,  worldwide,  royalty-bearing  license  to  gevokizumab  (“VPM087”)  (a  clinical-stage  anti-IL-1b  product  candidate)  and  related
know-how and patents. Under the terms of the Gevokizumab License Agreement, Novartis is solely responsible for the development and
commercialization of VPM087 and products containing such antibody.

Under the Gevokizumab License Agreement, we received total consideration of $30.0 million in 2017 for the license and rights
granted  to  Novartis.  Of  the  total  consideration,  $15.7  million  was  paid  in  cash  and  $14.3  million  (equal  to  €12.0  million)  was  paid  by
Novartis, on our behalf, to settle our loan with Les Laboratories Servier. In addition, Novartis extended the maturity date on our debt to
Novartis to September 30, 2022. In June 2021, we repaid its entire outstanding debt balance to Novartis. We also received $5.0 million
related  to  the  sale  of  539,131  shares  of  our  common  stock,  at  a  price  per  share  of  $9.2742.  Based  on  the  achievement  of  pre-specified
criteria,  we  are  eligible  to  receive  up  to  $438.0  million  in  development,  regulatory  and  commercial  milestones.  We  also  are  eligible  to
receive royalties on sales of licensed products, which are tiered based on sales levels and have percentage rates ranging from mid-single
digit to mid-teens. This program is in Phase 1 clinical testing.

Unless  terminated  earlier,  the  Gevokizumab  License Agreement  will  remain  in  effect,  on  a  country-by-country  and  product-by-
product basis, until Novartis’ royalty obligations end. The Gevokizumab License Agreement contains customary termination rights relating
to material breach by either party. Novartis also has a unilateral right to terminate the Gevokizumab License Agreement on a product-by-
product and country-by-country basis or in its entirety with six months’ prior written notice.

In  March  2023,  Novartis  notified  us  that  based  upon  a  strategic  review  of  the  development  program,  Novartis  will  not  initiate
further studies of gevokizumab in gastrointestinal cancers.  Novartis’ study to evaluate treatment with gevokizumab with standard of care
anti-cancer therapies in patients with metastatic colorectal, gastroesophageal, and renal cancers will continue to primary analysis, which is
anticipated later this year.

Novartis – Anti-CD40 Antibody

In  February  2004,  we  entered  into  an  exclusive,  worldwide,  multi-product  collaboration  agreement  with  Chiron  to  research,
develop  and  commercialize  multiple  antibody  products  for  the  treatment  of  cancer,  and  such  agreement  was  replaced  with  the  Chiron
Collaboration Agreement entered in May of 2005. The Chiron Collaboration Agreement was a risk-sharing arrangement whereby Chiron
and XOMA shared expenses and revenues on a 70-30 basis, with XOMA’s share being 30%. Financial terms included a loan facility from
Chiron to XOMA, secured by XOMA’s 30% ownership interest in the collaboration, of up to $50.0 million to fund up to 75% of our share
of expenses beginning in 2005.

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In  October  2005,  Chiron  announced  it  had  entered  into  a  definitive  merger  agreement  with  Novartis  under  which  Novartis
acquired all of the shares of Chiron that it did not already own. This transaction closed in 2006 at which time Novartis acquired Chiron’s
interest in the Chiron Collaboration Agreement. In July of 2008, Novartis and XOMA restructured the Chiron Collaboration Agreement,
which involved six development programs including iscalimab, a fully human anti-CD40 antagonist antibody intended as a treatment for B-
cell mediated diseases, including malignancies and autoimmune diseases. As part of the restructuring, Novartis, the successor to Chiron,
was granted, among other things, control over the ongoing product development collaborations remaining thereunder, including iscalimab.
In September 2015, the parties agreed to reduce the royalty-style payments that XOMA is eligible to receive on sales of Novartis’ clinical-
stage  anti-CD40  antibodies  (such  as  iscalimab). These  royalty-style  payments  are  tiered  based  on  sales  levels  and  now  have  percentage
rates ranging from mid-single-digit to low teens.

In  September  2021,  Novartis  announced  its  decision  to  discontinue  its  study  of  CFZ533  (iscalimab)  in  kidney  transplant.  In
September 2022, after an interim analysis of data, Novartis also decided to discontinue its study of CFZ533 in liver transplant. Novartis is
continuing iscalimab studies in other indications such as Sjögren’s Syndrome, Lupus Nephritis and Hidradenitis Suppurativa.

Our right to royalty-style payments expires on the later of the expiration of any licensed patent covering each product or 10 years

from the first commercial sale of each product in each country.

Takeda

In  November  2006,  we  entered  into  the  Takeda  Collaboration Agreement  with  Takeda  under  which  we  agreed  to  discover  and

optimize therapeutic antibodies against multiple targets selected by Takeda.

Under  the  Takeda  Collaboration  Agreement,  we  may  receive  additional  milestone  payments  aggregating  up  to  $19.0  million
relating  to  TAK-079  (mezagitamab)  and  a  4%  royalty  on  future  sales  of  all  products  subject  to  this  license,  including  TAK-169,  which
entered a phase 1 study in February 2020. Our right to milestone payments expires on the later of the receipt of payment from Takeda of the
last amount to be paid under the agreement or the cessation by Takeda of all research and development activities with respect to all program
antibodies, collaboration targets or collaboration products. Our right to royalties expires on the later of 13.5 years from the first commercial
sale of each royalty-bearing discovery product or the expiration of the last-to-expire licensed patent (or 12 years from first commercial sale
if there is significant generic competition post patent-expiration).

In  February  2009,  we  expanded  our  existing  collaboration  to  provide  Takeda  with  access  to  multiple  antibody  technologies,
including  a  suite  of  research  and  development  technologies  and  integrated  information  and  data  management  systems.  We  may  receive
milestones  of  up  to  $3.3  million  per  discovery  product  candidate  and  low  single-digit  royalties  on  future  sales  of  all  antibody  products
subject to this license. Our right to milestone payments expires on the later of the receipt of payment from Takeda of the last amount to be
paid  under  the  agreement  or  the  cessation  by  Takeda  of  all  research  and  development  activities  with  respect  to  all  program  antibodies,
collaboration targets or collaboration products. Our right to royalties expires on the later of 10 years from the first commercial sale of such
royalty-bearing discovery product or the expiration of the last-to-expire licensed patent.

In November 2020, the first patient was dosed in Takeda’s Phase 2 study of mezagitamab and we earned a $2.0 million milestone
payment  from  Takeda.  We  are  eligible  to  receive  remaining  milestones  up  to  a  total  of  $16.0  million  under  the  Takeda  Collaboration
Agreement.

In  August  2021,  Molecular  Templates,  Inc.,  assumed  full  rights  to  TAK-169  from  Takeda,  including  full  control  of  TAK-169

clinical development, per the terms of its terminated collaboration agreement with Takeda.

In January 2022, we earned a development milestone of $0.8 million pursuant to the Takeda Collaboration Agreement.

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Rezolute

In December 2017, we entered into a license agreement with Rezolute pursuant to which we granted an exclusive global license to
Rezolute to develop and commercialize X358 (now “RZ358”) products for all indications. We and Rezolute also entered into a common
stock purchase agreement pursuant to which Rezolute agreed to issue to us, as consideration for receiving the license for RZ358, a certain
number of its common stock related to its future financing activities.

Under  the  terms  of  the  license  agreement,  Rezolute  is  responsible  for  all  development,  regulatory,  manufacturing  and
commercialization  activities  associated  with  RZ358  and  is  required  to  make  certain  development,  regulatory  and  commercial  milestone
payments to us of up to $232.0 million in the aggregate based on the achievement of pre-specified criteria. Under the license agreement, we
are also eligible to receive royalties ranging from the high single-digits to the mid-teens based upon annual net sales of any commercial
product incorporating RZ358. Rezolute’s obligation to pay royalties with respect to a particular RZ358 product and country will continue
for the longer of the date of expiration of the last valid patent claim covering the product in that country, or twelve years from the date of
the first commercial sale of the product in that country. Rezolute’s future royalty obligations in the United States will be reduced by 20% if
the manufacture, use or sale of a licensed product is not covered by a valid XOMA patent claim, until such a claim is issued.

Pursuant  to  the  license  agreement,  we  are  eligible  to  receive  a  low  single-digit  royalty  on  sales  of  Rezolute’s  other  non-RZ358
products from its current programs, including RZ402 which is in Phase 1 clinical testing. Rezolute’s obligation to pay royalties with respect
to a particular Rezolute product and country will continue for the longer of twelve years from the date of the first commercial sale of the
product in that country or for so long as Rezolute or its licensee is selling such product in such country, provided that any such licensee
royalty will terminate upon the termination of the licensee’s obligation to make payments to Rezolute based on sales of such product in
such country.

The  license  agreement  contains  customary  termination  rights  relating  to  material  breach  by  either  party.  Rezolute  also  has  a
unilateral right to terminate the license agreement in its entirety on ninety days’ notice at any time. To the extent permitted by applicable
laws, we have the right to terminate the license agreement if Rezolute challenges the licensed patents.

No  consideration  was  exchanged  upon  execution  of  the  arrangement.  In  consideration  for  receiving  the  license  for  RZ358,

Rezolute agreed to issue shares of its common stock and pay cash to us upon the occurrence of Rezolute’s financing activities.

The  license  agreement  was  subsequently  amended  in  2018,  2019  and  2020.  Pursuant  to  the  terms  of  the  license  agreement  as
amended, we received a total of $6.0 million upon Rezolute’s achievement of financing activities and $8.5 million in installment payments
through October 2020. We also received 161,861 shares of common stock of Rezolute (on an as-adjusted post reverse-split basis).

In January 2022, Rezolute dosed the last patient in its Phase 2b clinical trial for RZ358, which triggered a $2.0 million milestone

payment due to XOMA pursuant to our Rezolute License Agreement.

Janssen

We and Janssen were parties to a license agreement which was terminated in 2017. In August 2019, we and Janssen entered into a
new  agreement  pursuant  to  which  we  granted  a  non-exclusive  license  to  Janssen  to  develop  and  commercialize  certain  drug  candidates
under our patents and know-how. Under the new agreement, Janssen made a one-time payment of $2.5 million to us. Additionally, for each
drug  candidate,  we  are  entitled  to  receive  milestone  payments  of  up  to  $3.0  million  upon  Janssen’s  achievement  of  certain  clinical
development  and  regulatory  approval  events. Additional  milestones  may  be  due  for  drug  candidates,  which  are  the  subject  of  multiple
clinical trials. Upon commercialization, we are eligible to receive a 0.75% royalty on net sales of each product. Janssen’s obligation to pay
royalties  with  respect  to  a  particular  product  and  country  will  continue  until  the  eighth-year-and-sixth-month  anniversary  of  the  first
commercial sale of the product in such country. The new agreement will remain in effect unless terminated by mutual written agreement of
the parties.

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In May 2021, we announced we earned a $0.5 million milestone from Janssen, upon dosing of the first patient in a Phase 3 clinical
trial evaluating one of Janssen’s biologic assets. In December 2021, we earned a $0.2 million milestone pursuant to our agreement with
Janssen.

Affimed

In April 2021, we entered into a new agreement with Affimed, under which we are eligible to receive payments from Affimed on
potential  future  commercial  sales  related  to  three  ICE  molecules  and  pre-loaded  natural  killer  cells  containing  the  ICE  molecules.
Additionally, we are eligible to receive a milestone upon the first product candidate in each program achieving marketing approval.

Compugen

In September 2021, we earned a $0.5 million milestone payment under our license agreement with Compugen triggered by the
dosing of the first patient in a Phase 1/2 study of AZD2936, a TIGIT/PD-1 bispecific antibody, in patients with advanced or metastatic non-
small cell lung cancer. AZD2936 is derived from COM902 and is being developed by AstraZeneca.

In November 2022, we earned a $0.8 million milestone payment under our license agreement with Compugen.

Sonnet Biotherapeutics

In July 2012, we entered into the Sonnet Collaboration Agreement which was amended in May 2019 to develop various products
using Sonnet’s ABD platform.  Under the terms of the Sonnet Collaboration Agreement, we may receive milestone payments aggregating
up to $3.75 million and low single-digit royalties from Sonnet on future commercial sales of such products. 

In April 2022, Sonnet initiated a Phase 1 clinical trial of SON-1010 in adult patients with advanced solid tumors, and we earned a

$0.5 million development milestone from Sonnet. 

Competition

The  biotechnology  and  pharmaceutical  industries  are  subject  to  continuous  and  substantial  technological  change.  Some  of  the
drugs our licensees or milestone and royalty partners are developing may compete with existing therapies or other drugs in development by
other companies. Furthermore, academic institutions, government agencies and other public and private organizations conducting research
may seek patent protection with respect to potentially competing products or technologies and may establish collaborative arrangements
with our licensees’ or royalty partners’ competitors. There can be no assurance that developments by others, including, without limitation,
the  development  of  generics  or  biosimilars,  will  not  render  our  licensees’  or  royalty  partners’  products  or  technologies  obsolete  or
uncompetitive.

Additionally, our royalty aggregator model faces competition on at least two fronts. First, there are other companies, funds and
other  investment  vehicles  seeking  to  aggregate  royalties  or  provide  alternative  financing  to  development-stage  biotechnology  and
pharmaceutical  companies. These  competitive  companies,  funds  and  other  investment  vehicles  may  have  a  lower  target  rate  of  return,  a
lower  cost  of  capital  or  access  to  greater  amounts  of  capital  and  thereby  may  be  able  to  acquire  assets  that  we  are  also  targeting  for
acquisitions. Second, existing or potential competitors to our partners and licensees’ products, particularly large pharmaceutical companies,
may have greater financial, technical and human resources than our licensees. Accordingly, these competitors may be better equipped to
develop,  manufacture  and  market  products.  Many  of  these  companies  also  have  extensive  experience  in  preclinical  testing  and  human
clinical trials, obtaining FDA and other regulatory approvals and manufacturing and marketing pharmaceutical products.

For a discussion of the risks associated with competition, see below under “Item 1A. Risk Factors.”

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Government Regulation and Environmental Matters

The research and development, manufacturing and marketing of pharmaceutical products are subject to regulation by numerous
governmental  authorities  in  the  United  States  and  other  countries.  We  and  our  partners  and  licensees,  depending  on  specific  activities
performed, are subject to these regulations. In the United States, pharmaceuticals are subject to regulation by both federal and various state
authorities,  including  the  FDA.  The  Federal  Food,  Drug  and  Cosmetic  Act  and  the  Public  Health  Service  Act  govern  the  testing,
manufacture, safety, efficacy, labeling, storage, record keeping, approval, advertising and promotion of pharmaceutical products and there
are often comparable regulations that apply at the state level. Further, various state and federal healthcare laws, including the federal Anti-
Kickback  Statute,  the  federal  False  Claims Act  and  state  and  federal  data  privacy  and  security  law,  may  also  apply.  There  are  similar
regulations  in  other  countries  as  well.  For  both  currently  marketed  and  products  in  development,  failure  to  comply  with  applicable
regulatory  requirements  can,  among  other  things,  result  in  delays,  the  suspension  of  regulatory  approvals,  as  well  as  possible  civil  and
criminal sanctions. Development stage products in our portfolio require approval by the FDA before we will recognize any royalties from
sales. In addition, changes in existing regulations could have a material adverse effect on us or our partners.

In  the  United  States,  the  EU  and  other  significant  or  potentially  significant  markets  for  our  portfolio  and  product  candidates,
government authorities and third-party payors are increasingly attempting to limit or regulate the price of medical products and services. In
the  United  States,  the  volume  of  drug  pricing-related  legislation  has  dramatically  increased  in  recent  years.  For  example,  Congress  has
enacted laws requiring manufacturers to refund the Centers for Medicare & Medicaid Services, or CMS, for certain discarded amounts of
drugs from single-use vials beginning in 2023 and eliminating the existing cap on Medicaid rebate amounts beginning in 2024. Also, in
August  2022  Congress  enacted  the  Inflation  Reduction Act  of  2022,  which,  among  other  things,  requires  the  Department  of  Health  and
Human Services to negotiate Medicare prices for certain drugs, imposes an inflation-based rebate on Medicare Part B and D utilization,
restructures the Medicare Part D benefit and increases manufacturer contributions in some or all of the Medicare Part D benefit phases. In
addition,  many  state  legislatures  are  considering,  or  have  already  passed  into  law,  legislation  that  seeks  to  indirectly  or  directly  regulate
pharmaceutical drug pricing, such as requiring manufacturers to publicly report proprietary pricing information, creating review boards for
prices to state agencies, and encouraging the use of generic drugs. In both the United States and elsewhere, sales of medical products and
treatments are dependent, in part, on the availability of coverage and adequate reimbursement from third-party payors, such as government
and private insurance plans. Further, many countries outside the United States, including the EU member states, have established complex
and  lengthy  procedures  to  obtain  price  approvals  and  coverage  reimbursement  and  periodically  review  their  pricing  and  reimbursement
decisions. If any pricing-related regulation impacts products in our portfolio, it would result in lower royalties received by us.

We believe there are no compliance issues with laws and regulations that have been enacted or adopted regulating the discharge of
materials into the environment, or otherwise relating to the protection of the environment, that have adversely affected, or are reasonably
expected to adversely affect, our business, financial condition and results of operations, and we currently do not anticipate material capital
expenditures arising from environmental regulation. We believe climate change could present risks to our business. Some of the potential
impacts  of  climate  change  to  our  business  include  increased  operating  costs  due  to  additional  regulatory  requirements  and  the  risk  of
disruptions to our business. We do not believe these risks are material to our business at this time.

For a discussion of the risks associated with government regulations, see below under “Item 1A. Risk Factors.”

Intellectual Property

Intellectual property is important to our business and our future income streams will depend in part on our partners and licensees’,
ability to obtain issued patents and to operate without infringing on the proprietary rights of others. We hold and have filed applications for
a number of patents in the United States and internationally to protect our products and technology. We also have obtained or have the right
to  obtain  licenses  to,  or  income  streams  based  on,  certain  patents  and  applications  filed  by  others.  However,  the  patent  position  of
biotechnology companies generally is highly uncertain and consistent policy regarding the breadth of allowed claims has not emerged from
the actions of the U.S. Patent and Trademark Office with respect to biotechnology patents. Accordingly, no assurance can be given that our,
or our partners

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or licensees’ patents will afford protection against competitors with similar products or that others will not obtain patents claiming aspects
similar  to  those  covered  by  our,  or  our  partners’  or  licensees’  patent  applications.  Some  of  our  agreements,  or  those  of  our  partners  or
licensees,  contain  “step-down”  provisions  where  the  royalty  rate  is  reduced  following  patent  expiration  or  revocation.  Below  is  a  list  of
representative patents and patent applications related to our licensed programs:

Licensee

Program

Representative
Patents/Applications

Subject matter

Expected last
expiration in
family

Novartis

Anti-IL-1b

Novartis

Anti-TGFb

Rezolute

Anti-INSR

Ology Bioservices

Anti-BoNT

Various

Phage display
libraries

Gevokizumab (VPM087) and other
antibodies and antibody fragments with
similar binding properties for IL-1β
Methods of treating Type 2 diabetes or
Type 2 diabetes-induced diseases or
conditions with high affinity antibodies
and antibody fragments that bind to IL-1β
Methods of treating gout with certain
doses of IL-1β binding antibodies or
binding fragments
Pharmaceutical compositions comprising
anti-IL-1β binding antibodies or fragments
for reducing acute coronary syndrome in a
subject with a history of myocardial
infarction.

2027

2027

2028

2030

TGFβ antibodies and methods of use
thereof

2032

Combination therapy using an inhibitor of
TGFb and an inhibitor of PD-1 for treating
or preventing recurrence of cancer
Insulin receptor-modulating antibodies
having the functional properties of RZ358

Methods of treating or preventing post-
prandial hypoglycemia after gastric bypass
surgery using a negative modulator
antibody to the insulin receptor

Coformulations of anti- botulinum
neurotoxin antibodies

2036

2030

2036

2030

XOMA phage display library components

2032

US 7,531,166
US 7,582,742
EP 1 899 378
US 7,695,718
US 8,101,166
US 8,586,036
US 9,163,082
US 8,637,029

JP 5763625
US 10,611,832

US 8,569,462
US 9,145,458
US 9,714,285
US 10,358,486
EP 2714735
EP 21186327
JP 6363948
US 10,167,334
EP 3 277 716
JP 6901400
US 9,944,698
EP 2 480 254
JP 5849050
US 10,711,067
EP 3 265 491A1

US 8,821,879
EP 2 473 191

US 8,546,307
EP 2 344 686

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Licensee

Program

Representative
Patents/Applications

Subject matter

Expected last
expiration in
family

Seeking out license

Anti-IL2

Seeking out license

Anti-PTH1R

Organon

Ebopiprant

US 10,858,428*
EP 3 518 969A2*
US 10,519,250
EP 3 490 600A1
US 8,451,480***
EP1 487 442***

9,447,055***
9,834,528***
10,259,795***
EP 3 400 217***

10,555,934****
11,524,003
****
EP 3 397 622****

11,534,428****

Interleukin-2 Antibodies and Uses Thereof

2037

Parathyroid Hormone Receptor 1
Antibodies and Uses Thereof
Generically covers ebopiprant  

Ebopiprant; prodrug valine ester; method
of synthesizing ebopiprant, method of
treating or preventing preterm labor by
administering ebopiprant 

Treating pre-term labor or delaying onset
of labor with Ebopiprant or prodrug valine
ester plus an additional agent such as
nifedipine or atosiban 

2037

2024

2036 

2037 

Delaying onset of delivery by
administering ebopiprant and about 20mg
of nifedipine 

2039 

* Jointly owned with Medical University of South Carolina Foundation for Research Development
** Jointly owned with Novartis Vaccines and Diagnostics, Inc.
***Owned by Merck Serono S.A. 
****Owned by XOMA (US) LLC 

If certain patents issued to others are upheld or if certain patent applications filed by others are issued and upheld, our partners and
licensees may require certain licenses from others to develop and commercialize certain potential products incorporating our technology.
There can be no assurance that such licenses, if required, will be available on acceptable terms. If such licenses are obtained, our partners
and licensees may be able to deduct some or all of the costs from the royalties they owe to us.

We protect our proprietary information, in part, by confidentiality agreements with our employees, consultants and partners. These
parties may breach these agreements, and we may not have adequate remedies for any breach. To the extent that we or our consultants or
partners use intellectual property owned by others, we may have disputes with our consultants or partners or other third parties, as to the
rights in related or resulting know-how and inventions.

Concentration of Risk

Our  business  model  is  dependent  on  third  parties  achieving  specified  development  milestones  and  product  sales.  Our  portfolio
currently  includes  over  70  fully  funded  programs  from  which  we  could  potentially  receive  royalties  or  other  payments  if  the  programs
achieve marketability. Novartis is developing several of the programs in our portfolio. While we do not expect the discontinuation of any
one program would have a material impact on our business, the discontinuation of all programs by Novartis could have a material effect on
our business and financial condition.

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Organization

We  were  incorporated  in  Delaware  in  1981  and  became  a  Bermuda-exempted  company  in  December  1998.  Effective
December 31, 2011, we changed our jurisdiction of incorporation from Bermuda to Delaware and changed our name from XOMA Ltd. to
XOMA Corporation. When referring to a time or period before December 31, 1998, or after December 31, 2011, the terms “Company” and
“XOMA”  refer  to  XOMA  Corporation,  a  Delaware  corporation;  when  referring  to  a  time  or  period  between  December  31,  1998,  and
December 31, 2011, such terms refer to XOMA Ltd., a Bermuda company.

Our principal executive offices are located at 2200 Powell Street, Suite 310, Emeryville, California 94608. Our telephone number
at our principal executive offices is (510) 204-7200. Our website address is www.xoma.com. The information found on our website is not
part of this or any other report filed with or furnished to the SEC.

Impact of COVID-19 Pandemic

The  COVID-19  pandemic  continues  to  pose  risks  to  our  business  as  clinical  trials  industry-wide  have  slowed.  Our  business  is
dependent on the continued development and commercialization efforts of our licensees and our royalty agreement counterparties and their
licensees. We have been monitoring and continue to monitor our portfolio programs for potential delays in underlying research programs
and  elections  of  our  partners  to  continue  or  cease  development.  Delays  in  clinical  trials  and  underlying  research  programs  may  lead  to
delayed revenue from milestones from our licensees and royalty agreement counterparties or, if certain research programs are discontinued,
we may recognize impairment charges for our royalty receivables. COVID-19 and the related variants may impact our underlying programs
in a variety of ways which are unknown in length and scope at this time.

Employees

We rely on a small number of skilled, experienced, and innovative employees to conduct the operations of our company. As of
March 6, 2023, we employed 12 full-time employees and one part-time employee primarily engaged in executive, business development,
legal, finance and administrative positions. We also utilize independent contractors and consultants to supplement our workforce.

Item 1A.    Risk Factors

The  following  risk  factors  and  other  information  included  in  this Annual  Report  should  be  carefully  considered. The  risks  and
uncertainties described below are not the only ones we face. Additional risks and uncertainties not presently known to us also may impair
our business operations. If any of the following risks occur, our business, financial condition, operating results and cash flows could be
materially adversely affected.

Risks Related to our Royalty Aggregator Strategy

Our acquisitions of potential future royalty and/or milestone payments may not produce anticipated revenues and/or may be negatively
affected by a default or bankruptcy of the licensor(s) or licensee(s) under the applicable license agreement(s) covering such potential
royalties  and/or  milestones,  and  if  such  transactions  are  secured  by  collateral,  we  may  be,  or  may  become,  under-secured  by  the
collateral  or  such  collateral  may  lose  value  and  we  will  not  be  able  to  recuperate  our  capital  expenditures  associated  with  the
acquisition.

We are engaged in a continual review of opportunities to acquire future royalties, milestones and other payments related to drug
development and sales as part of our royalty aggregator strategy or to acquire companies that hold royalty assets. Generally, at any time, we
seek  to  have  acquisition  opportunities  in  various  stages  of  active  review,  including,  for  example,  our  engagement  of  consultants  and
advisors  to  analyze  particular  opportunities,  technical,  financial  and  other  confidential  information,  submission  of  indications  of  interest
and involvement as a bidder in competitive auctions. Many potential acquisition targets do not meet our criteria, and for those that do, we
may face significant competition for these acquisitions from other royalty buyers and enterprises. Competition for future asset acquisition
opportunities in our markets could increase the price we pay for such assets and could reduce the number of potential acquisition targets.
The

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success of our acquisitions is based on our ability to make accurate assumptions regarding the valuation, probability, timing and amount of
potential future royalty and milestone payments as well as the viability of the underlying technology and intellectual property. The failure
of  any  of  these  acquisitions  to  produce  anticipated  revenues  may  materially  and  adversely  affect  our  financial  condition  and  results  of
operations.

Some  of  these  acquisitions  may  expose  us  to  credit  risk  in  the  event  of  a  default  by  or  bankruptcy  of  the  licensor(s)  or
licensee(s) that are parties to the applicable license agreement(s) covering the potential milestone and royalty streams being acquired. In
addition,  recent  volatility  in  the  capital  markets  may  limit  our  licensees  or  royalty-agreement  counterparties’  ability  to  access  additional
funding. While we generally try to structure our receipt of potential milestone and royalty payments to minimize the risk associated with
such a default or bankruptcy, there can be no assurance that any such default or bankruptcy will not adversely affect our ability to receive
future potential royalty and/or milestone payments. To mitigate this risk, on occasion, we may obtain a security interest as collateral in such
royalty, milestone and other payments. Our credit risk in respect of such counterparty may be exacerbated when the collateral held by us
cannot  be  realized  upon  or  is  liquidated  at  prices  not  sufficient  to  recover  the  full  amount  we  are  due  pursuant  to  the  terms  of  the
agreements  covering  the  particular  assets.  This  could  occur  in  circumstances  where  the  original  collateral  was  not  sufficient  to  cover  a
complete loss (e.g., our interests were only partially secured) or may result from the deterioration in value of the collateral, so that, in either
such case, we are unable to recuperate our full capital outlay. Any such losses resulting therefrom could materially and adversely affect our
financial condition and results of operations.

Many of our potential royalty acquisitions may be associated with drug products that are in clinical development and have not yet been
commercialized.  To  the  extent  that  such  products  are  not  successfully  developed  and  commercialized,  our  financial  condition  and
results  of  operations  may  be  negatively  impacted.  Acquisitions  of  potential  royalties  associated  with  development  stage
biopharmaceutical product candidates are subject to a number of uncertainties.

As part of our royalty aggregator strategy, we may continue to purchase future potential milestone and royalty streams associated
with drug products which are in clinical development and have not yet received marketing approval by any regulatory authority or been
commercialized. There can be no assurance that the FDA, the EMA or other regulatory authorities will approve such products or that such
products will be brought to market timely or at all, or that the market will be receptive to such products. To the extent that any such drug
products  are  not  successfully  developed  and  subsequently  commercialized,  the  value  of  our  acquired  potential  milestone  and  royalty
streams will be negatively affected. The ultimate success of our royalty aggregator strategy will depend on our ability to properly identify
and acquire high quality products and the ability of the applicable counterparty to innovate, develop and commercialize their products, in
increasingly competitive and highly regulated markets. Their inability to do so would negatively affect our ability to receive royalty and/or
milestone  payments.  In  addition,  we  are  dependent,  to  a  large  extent,  on  third  parties  to  enforce  certain  rights  for  our  benefit,  such  as
protection of a patent estate, adequate reporting and other protections, and their failure to do so would presumably negatively impact our
financial condition and results of operations.

 If the FDA, the EMA or other regulatory authority approves a development-stage product candidate that generates our royalty, the
labeling, packaging, adverse event reporting, storage, advertising, promotion and recordkeeping for the product will be subject to extensive
and  ongoing  regulatory  requirements.  The  subsequent  discovery  of  previously  unknown  problems  with  the  product,  including  adverse
events of unanticipated severity or frequency, may result in restrictions on the marketing of the product, and could include withdrawal of
the product from the market.

In addition, the developers of these development-stage product candidates may not be able to raise additional capital to continue
their discovery, development and commercialization activities, which may cause them to delay, reduce the scope of, or eliminate one or
more of their clinical trials or research and development programs. If other product developers introduce and market products that are more
effective, safer, less invasive or less expensive than the relevant products that generate our royalties, or if such developers introduce their
products prior to the competing products underlying our royalties, such products may not achieve commercial success and thereby result in
a loss for us.

Further,  the  developers  of  such  products  may  not  have  sales,  marketing  or  distribution  capabilities.  If  no  sales,  marketing  or
distribution  arrangements  can  be  made  on  acceptable  terms  or  at  all,  the  affected  product  may  not  be  able  to  be  successfully
commercialized, which will result in a loss for us. Losses from such assets could have a material adverse effect on our business, financial
condition and results of operations.

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We intend to continue, and may increase, this strategy of acquiring development-stage product candidates. While we believe that
we  can  readily  evaluate  and  gain  conviction  about  the  likelihood  of  a  development-stage  product  candidate’s  approval  and  achieving
significant  sales,  there  can  be  no  assurance  that  our  assumptions  will  prove  correct,  that  regulatory  authorities  will  approve  such
development-stage product candidates, that such development-stage product candidates will be brought to market timely or at all, or that
such products will achieve commercial success.

The ongoing COVID-19 pandemic may continue to, and other actual or threatened epidemics, pandemics, outbreaks, or public health
crises  may  in  the  future,  adversely  affect  our  and  our  licensees  or  royalty-agreement  counterparties  or  their  licensees,  which  could
cause delays or elimination of our receipts of potential milestones and royalties under our licensing or royalty and milestone acquisition
arrangements.

The  global  spread  of  COVID-19  and  other  actual  or  threatened  epidemics,  pandemics,  outbreaks,  or  public  health  crises  has
adversely  impacted  and  could  materially  and  adversely  impact  in  the  future  our  licensees  or  royalty-agreement  counterparties  or  their
licensees,  which  has  and  could  further  cause  delays,  suspensions  or  cancellations  of  their  drug  development  efforts  including,  without
limitation, their clinical trials, which would correspondingly delay, suspend or negate the timing of our potential receipts of milestones and
royalties under our out-licensing or royalty acquisition agreements. The disruptions to our licensees or RPA counterparties or their licensees
could include, without limitation:

● delays or difficulties in recruiting and enrolling new patients in their clinical trials;

● delays or difficulties in clinical site initiation;

● diversion of healthcare resources away from the conduct of clinical trials, including the diversion of hospitals serving as their

clinical trial sites and hospital staff supporting the conduct of their clinical trials;

● interruption of key clinical trial activities, such as clinical trial site monitoring;

● limitations in employee resources that would otherwise be focused on the conduct of their clinical trials, including because of

sickness of employees or their families or the desire of employees to avoid contact with large groups of people;

● interruption in global shipping that may affect the transport of clinical trial supplies and materials;

● potential refusal by the FDA to accept data, including from clinical trials in affected geographies or failure to comply with

updated FDA guidance and expectations related to the conduct of clinical trials during the COVID-19 pandemic; and

● delays in receiving approval from the FDA, the EMA and other U.S. and foreign federal, state and local regulatory authorities

to initiate their planned clinical trials or to market their products.

The extent to which the COVID-19 pandemic continues to impact our business and prospects and the overall economies of the
United  States  and  other  countries  will  depend  on  numerous  evolving  factors,  which  are  highly  uncertain  and  cannot  be  predicted  with
confidence, such as the duration and scope of the pandemic and mutations in the COVID-19 virus.

The evolving effects of the COVID-19 pandemic and restrictive government measures taken in response have had a significant
impact, both direct and indirect, on businesses and commerce, as significant reductions in business related activities have occurred, supply
chains have been disrupted, and manufacturing and clinical development activities have been curtailed or suspended.

In addition, quarantines, stay-at-home, executive and similar government orders, shutdowns or other restrictions on the conduct of

business operations continue to impact personnel at third-party clinical testing sites, manufacturing

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facilities, and the availability or cost of materials, which could disrupt our licensees’ and RPA counterparties and their licensees’ supply
chains.

The spread of COVID-19, which has already resulted in a significant disruption of global financial markets, may materially affect
us economically. While the evolving economic impacts brought by, and the duration of, COVID-19 may be difficult to assess or predict, it
has already significantly disrupted global financial markets, and may limit our ability to access capital, which could in the future negatively
affect our liquidity. A recession or market correction resulting from the spread of COVID-19 could materially affect our business and the
value of our common stock.

While  several  of  our  partners  have  experienced  delays  due  to  the  COVID-19  pandemic,  we  do  not  yet  know  the  full  extent  of
potential delays or impacts on our business, clinical trials, healthcare systems or the global economy as a whole. However, the effects could
continue  to  have  an  impact  on  our  operations  and  could  have  a  material  adverse  effect  on  our  business,  financial  condition,  results  of
operations and prospects in future periods.

Risks Related to our Industry

Biopharmaceutical products are subject to sales risks.

Biopharmaceutical product sales may be lower than expected due to a number of reasons, including pricing pressures, insufficient
demand,  product  competition,  failure  of  clinical  trials,  lack  of  market  acceptance,  obsolescence,  loss  of  patent  protection,  government
regulations, the impact of  COVID-19 or other factors, and development-stage product candidates may fail to reach the market. Unexpected
side  effects,  safety  or  efficacy  concerns  can  arise  with  respect  to  a  product,  leading  to  product  recalls,  withdrawals,  declining  sales  or
litigation. As  a  result,  payments  of  our  future  potential  milestones  and/or  royalties  may  be  reduced  or  cease.  In  addition,  these  potential
payments may be delayed, causing our near-term financial performance to be weaker than expected.

Biopharmaceutical products are subject to substantial competition.

The biopharmaceutical industry is a highly competitive and rapidly evolving industry. The length of any product’s commercial life
cannot be predicted with certainty. There can be no assurance that one or more products on which we are entitled to a potential milestone or
royalty  will  not  be  rendered  obsolete  or  non-competitive  by  new  products  or  improvements  on  which  we  are  not  entitled  to  a  potential
milestone or royalty, either by the current marketer of such products or by another marketer. Current marketers of products may undertake
these  development  efforts  in  order  to  improve  their  products  or  to  avoid  paying  our  royalty.  Adverse  competition,  obsolescence  or
governmental and regulatory action or healthcare policy changes could significantly affect the revenues, including royalty-related revenues,
of the products which generate our potential milestones and royalties.

Competitive factors affecting the market position and success of each product include: 

● effectiveness;

● safety and side effect profile;

● price, including third-party insurance reimbursement policies;

● timing and introduction of the product;

● effectiveness of marketing strategy and execution;

● governmental regulation;

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● availability of lower-cost generics and/or biosimilars;

● treatment innovations that eliminate or minimize the need for a product; and

● product liability claims.

Biopharmaceutical products that have the potential to generate future milestones and royalties for us may be rendered obsolete or
non-competitive by new products, including generics and/or biosimilars, improvements on existing products or governmental or regulatory
action.  In  addition,  as  biopharmaceutical  companies  increasingly  devote  significant  resources  to  innovate  next-generation  products  and
therapies using gene editing and new curative modalities, such as cell and gene therapy, products on which we have a milestone or royalty
rights may become obsolete. These developments could have a material adverse effect on the sales of the biopharmaceutical products that
have potential to generate our milestones and royalties, and consequently could materially adversely affect our business, financial condition
and results of operations.

We depend on our licensees and royalty-agreement counterparties for the determination of royalty and milestone payments. While we
typically  have  primary  or  back-up  rights  to  audit  our  licensees  and  royalty-agreement  counterparties,  the  independent  auditors  may
have difficulty determining the correct royalty calculation, we may not be able to detect errors and payment calculations may call for
retroactive adjustments. We may have to exercise legal remedies, if available, to resolve any disputes resulting from any such audit.

The royalty, milestone and other payments we may receive are dependent on our licensees and royalty agreement counterparties
and their licensees’ achievement of regulatory and developmental milestones and product sales. Each licensee’s calculation of the royalty
payments is subject to and dependent upon the adequacy and accuracy of its sales and accounting functions, and errors may occur from
time to time in the calculations made by a licensee and/or a licensee may fail to report the achievement of royalties or milestones in whole
or in part. Our license and royalty agreements typically provide us the primary or back-up right to audit the calculations and sales data for
the  associated  royalty  payments;  however,  such  audits  may  occur  many  months  following  our  recognition  of  the  royalty  revenue,  may
require us to adjust our royalty revenues in later periods and may require expense on our part. Further, our licensees and royalty-agreement
counterparties may be uncooperative or have insufficient records, which may complicate and delay the audit process.

Although  we  intend  to  regularly  exercise  our  royalty  audit  rights  as  necessary  and  to  the  extent  available,  we  rely  in  the  first
instance  on  our  licensees  and  royalty-agreement  counterparties  to  accurately  report  the  achievement  of  milestones  and  royalty  sales  and
calculate and pay applicable milestones and royalties and, upon exercise of such royalty and other audit rights, we rely on licensees’ and
royalty-agreement counterparties’ cooperation in performing such audits. In the absence of such cooperation, we may be forced to incur
expenses to exercise legal remedies, if available, to enforce our agreements.

The lack of liquidity of our acquisitions of future potential milestones and royalties may adversely affect our business and, if we need to
sell any of our acquired assets, we may not be able to do so at a favorable price, if at all. As a result, we may suffer losses.

We  generally  acquire  milestone  and  royalty  rights  that  have  limited  secondary  resale  markets  and  may  be  subject  to  transfer
restrictions.  The  illiquidity  of  most  of  our  milestone  and  royalty  receivable  assets  may  make  it  difficult  for  us  to  dispose  of  them  at  a
favorable price if at all and, as a result, we may suffer losses if we are required to dispose of any or all such assets in a forced liquidation or
otherwise. In addition, if we liquidate all or a portion of our potential future milestone and/or purchased royalty stream interests quickly or
relating to a forced liquidation, we may realize significantly less than the value at which we had previously recorded these interests.

Our  royalty  aggregator  strategy  may  require  that  we  register  with  the  SEC  as  an  “investment  company”  in  accordance  with  the
Investment Company Act of 1940.

The  rules  and  interpretations  of  the  SEC  and  the  courts,  relating  to  the  definition  of  "investment  company"  are  very  complex.

While we currently intend to conduct our operations so that we will not be an investment company under

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applicable SEC interpretations, we can provide no assurance that the SEC would not take the position that the Company would be required
to register under the ‘40 Act and comply with the ‘40 Act’s registration and reporting requirements, capital structure requirements, affiliate
transaction restrictions, conflict of interest rules, requirements for disinterested directors, and other substantive provisions. We monitor our
assets  and  income  for  compliance  under  the  ‘40 Act  and  seek  to  conduct  our  business  activities  to  ensure  that  we  do  not  fall  within  its
definitions  of  “investment  company”  or  that  we  qualify  under  one  of  the  exemptions  or  exclusions  provided  by  the  ‘40  Act  and
corresponding  SEC  regulations.  If  we  were  to  become  an  “investment  company”  and  be  subject  to  the  restrictions  of  the  ‘40 Act,  those
restrictions likely would require significant changes in the way we do business and add significant administrative costs and burdens to our
operations. To ensure we do not fall within the ‘40 Act, we may need to take various actions which we might otherwise not pursue. These
actions may include restructuring the Company and/or modifying our mixture of assets and income or a liquidation of certain of our assets.

Our licensees or royalty-agreement counterparties or their licensees could be subject to natural disasters, public health crises, political
crises and other catastrophic events that could hinder or disrupt development efforts.

We depend on our licensees and royalty-agreement counterparties and their licensees to successfully develop and commercialize
product  candidates  for  which  we  may  receive  milestone,  royalty  and  other  payments  in  the  future.  Our  licensees  and  royalty-agreement
counterparties and their licensees operate research and development efforts in various locations in the United States and internationally. If
any of their facilities is affected by natural disasters, such as earthquakes, tsunamis, power shortages or outages, floods or monsoons, public
health crises, such as pandemics and epidemics, political crises, such as terrorism, war, political instability, labor disputes or strikes, other
conflict, or other events outside of their control, their research and development efforts could be disrupted, which could result in the delay
or  discontinuation  of  development  of  one  or  more  of  the  product  candidates  in  which  we  have  rights  to  future  milestone  and/or  royalty
payments which could have a material adverse effect on our business, results of operations and prospects.

Because many of the companies with which we do business also are in the biotechnology sector, the volatility of that sector can affect us
indirectly as well as directly.

The same factors that affect us directly also can adversely affect us indirectly by affecting the ability of our partners and others
with whom we do business to meet their obligations to us and reduce our ability to realize the value of the consideration provided to us by
these other companies in connection with their licensing of our products.

Risks Related to our Financial Results and Capital Requirements

We have sustained losses in the past, and we expect to sustain losses in the foreseeable future.

We have incurred significant operating losses and negative cash flows from operations since our inception. Although we generated
net income of $15.8 million and positive cash flows from operations of $22.7 million for the year ended December 31, 2021, we generated
net loss of $17.1 million and negative cash flows from operations of $12.9 million for the year ended December 31, 2022 and we had an
accumulated  deficit  of  $1.2  billion  as  of  December  31,  2022.  We  do  not  know  whether  we  will  ever  achieve  sustained  profitability  or
whether cash flow from future operations will be sufficient to meet our needs.

To  date,  we  have  financed  our  operations  primarily  through  the  sale  of  equity  securities  and  debt  and  royalty  interests,  and
payments received under our collaboration and licensing arrangements. The size of our future net losses will depend, in part, on the rate of
our  future  expenditures  and  our  and  our  partners’  ability  to  generate  revenues.  If  our  partners’  product  candidates  are  not  successfully
developed  or  commercialized,  or  if  revenues  are  insufficient  following  regulatory  approval,  we  will  not  achieve  profitability  and  our
business may fail. Our ability to achieve profitability is dependent in large part on the success of our and our partners’ ability to license
product candidates, and the success of our partners’ development programs, both of which are uncertain. Our success is also dependent on
our partners obtaining regulatory approval to market product candidates which may not materialize or prove to be successful.

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Unstable market and global economic conditions may have adverse consequences on our business, financial condition and stock price.

The global credit and financial markets have experienced volatility, including as a result of the COVID-19 pandemic, changes in
interest  rates,  and  economic  inflation,  which  has  included  diminished  liquidity  and  credit  availability,  declines  in  consumer  confidence,
declines  in  economic  growth,  high  inflation,  uncertainty  about  economic  stability  and  changes  in  unemployment  rates.  The  financial
markets and the global economy may also be adversely affected by the current or anticipated impact of military conflict, acts of terrorism or
other geopolitical events. Sanctions imposed by the United States and other countries in response to such conflicts, including the one in
Ukraine, may also continue to adversely impact the financial markets and the global economy, and any economic countermeasures by the
affected countries or others could heighten market and economic instability. There can be no assurance that further deterioration in credit
and financial markets and confidence in economic conditions will not occur. Our royalty aggregator strategy may be adversely affected by
any such economic downturn, volatile business environment or continued unpredictable and unstable market conditions. Failure to secure
any necessary financing in a timely manner could have a material adverse effect on our growth strategy, financial performance and stock
price.

Our royalty aggregator strategy may require us to raise additional funds to acquire milestone and royalty interests; we cannot be certain
that  funds  will  be  available  or  available  at  an  acceptable  cost  of  capital,  and  if  they  are  not  available,  we  may  be  unsuccessful  in
acquiring milestone and royalty interests to sustain the business in the future.

We  may  need  to  commit  substantial  funds  to  continue  our  business,  and  we  may  not  be  able  to  obtain  sufficient  funds  on
acceptable terms, if at all. If the current equity and credit markets deteriorate, it may make any additional debt or equity financing more
difficult and more costly. Any additional debt financing or additional equity that we raise may contain terms that are not favorable to us
and/or result in dilution to our stockholders, including pursuant to our 2018 Common Stock ATM Agreement, as amended and to our 2021
Series  B  Preferred  Stock  ATM  Agreement.  If  we  raise  additional  funds  through  licensing  arrangements  with  third  parties,  we  may  be
required to relinquish some rights to our technologies or our product candidates, grant licenses on terms that are not favorable to us or enter
into  a  license  arrangement  for  a  product  candidate  at  an  earlier  stage  of  development  or  for  a  lesser  amount  than  we  might  otherwise
choose.

If adequate funds are not available on a timely basis, we may:

● reduce or eliminate royalty aggregation efforts;

● further reduce our capital or operating expenditures;

● curtail our spending on protecting our intellectual property; or

● take other actions which may adversely affect our financial condition or results of operations.

Changes  in  the  potential  royalty  acquisition  market,  including  its  structure  and  participants,  or  a  reduction  in  the  growth  of  the
biopharmaceutical  industry,  could  lead  to  diminished  opportunities  for  us  to  acquire  potential  milestones  and  royalties,  fewer  potential
milestones  and  royalties  (or  potential  milestones  or  royalties  of  significant  scale)  being  available,  or  increased  competition  for  potential
royalties. Even if we continue to acquire potential royalties and they become actual royalties, they may not generate a meaningful return for
a period of several years, if at all, due to the price we pay for such royalties or other factors relating to the underlying products. As a result,
we may not be able to continue to acquire potential milestones and royalties as we have in the past, or at all.

We have a continuing obligation to pay quarterly dividends to holders of our Series A Preferred Stock and Series B Preferred Stock,
which will be an on-going expenditure for us and may limit our ability to borrow additional funds.

Holders  of  our  Series A  Preferred  Stock  are  entitled  to  receive,  when  and  as  declared  by  our  Board  of  Directors,  out  of  funds
legally available for the payment of dividends, cumulative cash dividends at the rate of 8.625% of the $25.00 liquidation preference per
year (equivalent to $2.15625 per year). Dividends on the Series A Preferred Stock will

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accumulate  and  be  cumulative  from,  and  including,  the  date  of  original  issue  by  us  of  the  Series A  Preferred  Stock.  Dividends  will  be
payable in arrears on or about the 15th day of January, April, July and October. In the event of any voluntary or involuntary liquidation,
dissolution or winding up of our affairs, the holders of shares of Series A Preferred Stock are entitled to be paid out of our assets legally
available for distribution to our stockholders a liquidation preference of $25.00 per share, plus an amount equal to any accumulated and
unpaid dividends up to the date of payment (whether or not declared), before any distribution or payment may be made to holders of shares
of common stock or any other class or series of our equity stock ranking, as to liquidation rights, junior to the Series A Preferred Stock. The
shares of Series A Preferred Stock are redeemable at our option, in whole or in part, at redemption prices ranging from $26.00 per share to
$25.00 per share, plus any accrued and unpaid dividends, depending on the date of redemption.

Holders of depositary shares representing interests in our Series B Preferred Stock are entitled to receive, when and as declared by
our Board of Directors, out of funds legally available for the payment of dividends, cumulative cash dividends at the rate of 8.375% of the
$25,000 liquidation preference per share of Series B Preferred Stock ($25.00 per depositary share) per year (equivalent to $2,093.75 per
year per share or $2.09375 per year per depositary share). Dividends on the Series B Preferred Stock will accumulate and be cumulative
from, and including, the date of original issue by us of the Series B Preferred Stock. Dividends are payable in arrears on or about the 15th
day  of  January, April,  July  and  October.  The  shares  of  Series  B  Preferred  Stock  are  redeemable  at  our  option,  in  whole  or  in  part,  at
redemption prices ranging from $26,000.00 per share ($26.00 per depositary share) to $25,000.00 per share ($25.00 per depositary share),
plus any accrued and unpaid dividends, depending on the date of redemption.

The  payment  of  cash  dividends  and  share  repurchases  is  subject  to  limitations  under  applicable  laws  and  the  discretion  of  our
Board  of  Directors  and  is  determined  after  considering  current  conditions,  including  earnings,  other  operating  results  and  capital
requirements. Decreases in asset values or increases in liabilities can reduce net earnings and stockholders’ equity. A deficit in stockholders’
equity  could  limit  our  ability  to  pay  dividends  and  make  share  repurchases  under  Delaware  law.  On  the  other  hand,  our  continued
obligation to pay dividends to the holders of our Series A Preferred Stock and depositary shares representing interests in Series B Preferred
Stock could restrict us from additional borrowings or make them more costly.

The holders of preferred stock have rights that are senior to those of our common stockholders.

As of December 31, 2022, we had issued and outstanding 984,000 shares of Series A Preferred Stock with a liquidation preference
of $25.00 per share, plus an amount equal to any accumulated and unpaid dividends up to the date of payment (whether or not declared).
Additionally, as of December 31, 2022, we had issued and outstanding 1,600,000 depositary shares, each representing a 1/1000th fractional
interest in a share of our Series B Preferred Stock with a liquidation preference of $25,000 per share of Series B Preferred Stock ($25.00
per depositary share), plus an amount equal to any accumulated and unpaid dividends up to the date of payment (whether or not declared).
Our preferred stock is senior to our shares of common stock in right of payment of dividends and other distributions. In the event of our
bankruptcy,  dissolution  or  liquidation,  the  holders  of  our  preferred  stock  must  be  satisfied  before  any  distributions  can  be  made  to  our
common stockholders.

Information  available  to  us  about  the  biopharmaceutical  products  underlying  the  potential  royalties  we  buy  may  be  limited  and
therefore our ability to analyze each product and its potential future cash flow may be similarly limited.

We  may  have  limited  information  concerning  the  products  generating  the  future  potential  milestones  and  royalties  we  are
evaluating for acquisition. Often following our acquisition, the information we have regarding products underlying a potential milestone or
royalty may be limited to the information that is available in the public domain. Therefore, there may be material information that relates to
such products that we would like to know but do not have and may not be able to obtain. For example, we do not always know the results
of  studies  conducted  by  sponsors  of  the  products  of  others  or  the  nature  or  number  of  any  complaints  from  doctors  or  users  of  such
products. In addition, the market data that we obtain independently may also prove to be incomplete or incorrect. Due to these and other
factors, the actual potential cash flow from a potential royalty may be significantly lower than our estimates.

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Our future income is dependent upon numerous potential milestone and royalty-specific assumptions and, if these assumptions prove
not to be accurate, we may not achieve our expected rates of returns.

Our  business  model  is  based  on  multiple-year  internal  and  external  forecasts  regarding  potential  product  sales  and  numerous
product-specific  assumptions  in  connection  with  each  potential  milestone  and  royalty  acquisition,  including  where  we  have  limited
information  regarding  the  product.  There  can  be  no  assurance  that  the  assumptions  underlying  our  financial  models,  including  those
regarding potential product sales or competition, patent expirations or license terminations for the products underlying our portfolio, are
accurate. These assumptions involve a significant element of subjective judgment and may be and in the past have been adversely affected
by  post-acquisition  changes  in  market  conditions  and  other  factors  affecting  the  underlying  product.  Our  assumptions  regarding  the
financial  stability  or  operational  or  marketing  capabilities  of  the  partner  obligated  to  pay  us  potential  royalties  may  also  prove  to  be
incorrect. Due to these and other factors, the assets in our current portfolio or future assets may not generate our projected returns or in the
time periods we expect. This could negatively impact our results of operation for a given period.

Reductions  or  declines  in  income  from  potential  milestones  and  royalties,  or  significant  reductions  in  potential  milestone  or  royalty
payments compared to expectations, or impairments in the value of potential milestones and royalties acquired could have a material
adverse effect on our financial condition and results of operation.

The amount and duration of a royalty usually varies on a country-by-country basis and can be based on a number of factors, such
as payments to third party licensors, whether the product is sold singly or in combination, patent expiration dates, regulatory exclusivity,
years from first commercial sale of the applicable drug product, the entry of competing generic or biosimilar products, or other terms set
out in the contracts governing the royalty. It is common for royalty durations to expire earlier or later than anticipated due to unforeseen
positive or negative developments over time, including with respect to the granting of patents and patent term extensions, the invalidation
of patents, claims of patent misuse, litigation between the party controlling the patents and third party challengers of the patents, the ability
of  third  parties  to  design  around  or  circumvent  valid  patents,  the  granting  of  regulatory  exclusivity  periods  or  extensions,  timing  of  the
arrival  of  generic  or  biosimilar  competitor  products,  changes  to  legal  or  regulatory  regimes  affecting  intellectual  property  rights  or  the
regulation of pharmaceutical products, product life cycles, and industry consolidations. If an unexpected reduction in a royalty amount or
shortening  of  a  potential  royalty  term  were  to  occur,  it  could  result  in  a  reduction  in  potential  income  from  milestones  and  royalties,  a
significant reduction in potential milestones and royalty payments compared to expectations, or a permanent impairment of such potential
milestones and royalty payments.

A large percentage of the calculated net present value of our portfolio is represented by a limited number of products. The failure of any
one of these products to move forward in clinical development or commercialization may have a material adverse effect on our financial
condition and results of operation.

Our asset portfolio may not be fully diversified by product, therapeutic area, geographic region or other criteria. Any significant
deterioration in the amount or likelihood of receipt of potential cash flows from the top products in our asset portfolio could have a material
adverse  effect  on  our  business,  financial  condition  and  results  of  operation.  For  example,  in  September  2021,  Novartis  announced  its
decision to discontinue its study of CFZ533 (iscalimab) in kidney transplant. In September 2022, after an interim analysis of data, Novartis
also  decided  to  discontinue  its  study  of  CFZ533  in  liver  transplant.  In  addition,  should  the  payor  of  any  future  potential  milestones  or
royalties decline to pay such potential milestones and royalties for any reason, such failure may result in a material adverse effect on our
financial condition and results of operation.

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Risks Related to Our Milestone and Royalty Streams

We may not be able to successfully identify and acquire potential milestone and royalty streams on other products, product candidates,
or  programs,  or  other  companies  to  grow  and  diversify  our  business,  and,  even  if  we  are  able  to  do  so,  we  may  not  be  able  to
successfully  manage  the  risks  associated  with  integrating  any  such  products,  product  candidates,  programs  or  companies  into  our
business or we may otherwise fail to realize the anticipated benefits of these acquisitions.

To grow and diversify our business, we plan to continue our business development efforts to identify and seek to acquire and/or
in-license potential milestone and royalty streams or companies. Future growth through acquisition or in-licensing will depend upon the
availability of suitable products, product candidates, programs or companies for acquisition or in-licensing on acceptable prices, terms and
conditions. Even if appropriate opportunities are available, we may not be able to acquire rights to them on acceptable terms, or at all. The
competition to acquire or in-license rights to promising products, product candidates, programs and companies is fierce, and many of our
competitors  are  large,  multinational  pharmaceutical  and  biotechnology  companies  with  considerably  more  financial,  development  and
commercialization resources, personnel, and experience than we have. In order to compete successfully in the current business climate, we
may  have  to  pay  higher  prices  for  assets  than  may  have  been  paid  historically,  which  may  make  it  more  difficult  for  us  to  realize  an
adequate return on any acquisition.

Even if we are able to successfully identify and acquire or in-license new products, product candidates, programs or companies,
we may not be able to successfully manage the risks associated with integrating any products, product candidates, programs or companies
into our business or the risks arising from anticipated and unanticipated problems in connection with an acquisition or in-licensing. Further,
while we seek to mitigate risks and liabilities of potential acquisitions through, among other things, due diligence, indemnification and risk
allocation,  there  may  be  risks  and  liabilities  that  such  due  diligence  efforts  fail  to  discover,  that  are  not  disclosed  to  us,  or  that  we
inadequately assess. Any failure in identifying and managing these risks and uncertainties effectively would have a material adverse effect
on  our  business.  In  any  event,  we  may  not  be  able  to  realize  the  anticipated  benefits  of  any  acquisition  or  in-licensing  for  a  variety  of
reasons,  including  the  possibility  that  a  product  candidate  fails  to  advance  to  clinical  development,  proves  not  to  be  safe  or  effective  in
clinical  trials,  or  that  a  product  fails  to  reach  its  forecasted  commercial  potential  or  that  the  integration  of  a  product,  product  candidate,
program  or  company  gives  rise  to  unforeseen  difficulties  and  expenditures.  Any  failure  in  identifying  and  managing  these  risks  and
uncertainties would have a material adverse effect on our business.

  If  our  potential  royalty  providers’  therapeutic  product  candidates  do  not  receive  regulatory  approval,  our  potential  royalty  providers
will be unable to market them.

Our  potential  royalty  providers’  product  candidates  cannot  be  manufactured  and  marketed  in  the  United  States  or  any  other
countries  without  required  regulatory  approvals.  The  U.S.  government  and  governments  of  other  countries  extensively  regulate  many
aspects of our partners’ product candidates, including:

● clinical development and testing;

● manufacturing;

● labeling;

● storage;

● record keeping;

● promotion and marketing; and

● importing and exporting.

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In the United States, the FDA regulates pharmaceutical products under the Federal Food, Drug, and Cosmetic Act and other laws,

including, in the case of biologics, the Public Health Service Act.

Initiation of clinical trials requires approval by health authorities. Clinical trials involve the administration of the investigational
new drug to healthy volunteers or to patients under the supervision of a qualified principal investigator. Clinical trials must be conducted in
accordance with FDA and International Conference on Harmonization Good Clinical Practices and the European Clinical Trials Directive,
as applicable, under protocols that detail the objectives of the study, the parameters to be used to monitor safety and the efficacy criteria to
be evaluated. Other national, foreign and local regulations also may apply. The developer of the drug must provide information relating to
the  characterization  and  controls  of  the  product  before  administration  to  the  patients  participating  in  the  clinical  trials.  This  requires
developing  approved  assays  of  the  product  to  test  before  administration  to  the  patient  and  during  the  conduct  of  the  trial.  In  addition,
developers  of  pharmaceutical  products  must  provide  periodic  data  regarding  clinical  trials  to  the  FDA  and  other  health  authorities,  and
these  health  authorities  may  issue  a  clinical  hold  upon  a  trial  if  they  do  not  believe,  or  cannot  confirm,  that  the  trial  can  be  conducted
without unreasonable risk to the trial participants.

The  results  of  the  preclinical  studies  and  clinical  testing,  together  with  chemistry,  manufacturing  and  controls  information,  are
submitted to the FDA and other health authorities in the form of a NDA for a drug, and in the form of a BLA for a biological product,
requesting approval to commence commercial sales. In responding to an NDA or BLA, the FDA or foreign health authorities may grant
marketing approvals, request additional information or further research, or deny the application if they determine the application does not
satisfy regulatory approval criteria. Regulatory approval of an NDA, BLA, or supplement is never guaranteed. The approval process can
take  several  years,  is  extremely  expensive  and  can  vary  substantially  based  upon  the  type,  complexity,  and  novelty  of  the  products
involved, as well as the target indications. Our potential royalty providers ultimately may not be able to obtain approval in a timely fashion
or at all.

The FDA and foreign health authorities have substantial discretion in the drug and biologics approval processes. Despite the time
and  expense  incurred,  failure  can  occur  at  any  stage,  and  our  potential  development  partners  could  encounter  problems  that  cause
abandonment of clinical trials or cause them to repeat or perform additional preclinical, clinical or manufacturing-related studies.

Changes in the regulatory approval policy during the development period, changes in, or the enactment of additional regulations or
statutes,  or  changes  in  regulatory  review  for  a  submitted  product  application  may  cause  delays  in  the  approval  or  rejection  of  an
application.

The FDA and other regulatory agencies have substantial discretion in both the product approval process and manufacturing facility
approval process, and as a result of this discretion and uncertainties about outcomes of testing, we cannot predict at what point, or whether,
the FDA or other regulatory agencies will be satisfied with our licensees’ submissions or whether the FDA or other regulatory agencies will
raise questions that may be material and delay or preclude product approval or manufacturing facility approval. In light of this discretion
and  the  complexities  of  the  scientific,  medical  and  regulatory  environment,  our  or  our  potential  royalty  providers’  interpretation  or
understanding of the FDA’s or other regulatory agencies’ requirements, guidelines or expectations may prove incorrect, which also could
delay further or increase the cost of the approval process.

Our potential milestone and royalty providers face uncertain results of clinical trials of product candidates.

Drug  development  has  inherent  risk,  and  our  potential  milestone  and  royalty  providers  are  required  to  demonstrate  through
adequate and well-controlled clinical trials that product candidates are effective, with a favorable benefit-risk profile for use in their target
profiles  before  they  can  seek  regulatory  approvals  for  commercial  use.  It  is  possible  our  potential  royalty  providers  may  never  receive
regulatory  approval  for  any  licensed  product  candidates.  Even  if  a  product  candidate  receives  regulatory  approval,  the  resulting  product
may not gain market acceptance among physicians, patients, healthcare payors and the medical community.

Our  potential  milestone  and  royalty  providers’  product  candidates  require  significant  additional  research  and  development,
extensive  preclinical  studies  and  clinical  trials  and  regulatory  approval  prior  to  any  commercial  sales.  This  process  is  lengthy  and
expensive, often taking a number of years. As clinical results frequently are susceptible to varying

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interpretations that may delay, limit or prevent regulatory approvals, the length of time necessary to complete clinical trials and to submit
an application for marketing approval for a final decision by a regulatory authority varies significantly. As a result, it is uncertain whether:

● our potential milestone and royalty providers’ future filings will be delayed;

● our potential milestone and royalty providers’ preclinical studies will be successful;

● our potential milestone and royalty providers will be successful in generating viable product candidates;

● we will be successful in finding collaboration and licensing partners to advance our product candidates on our behalf;

● our potential milestone and royalty providers will be able to provide necessary data;

● results of future clinical trials by our potential milestone and royalty providers will justify further development; or

● our potential milestone and royalty providers ultimately will achieve regulatory approval for product candidates in which we

have an interest.

The timing of the commencement, continuation and completion of clinical trials by our potential milestone and royalty providers
may be subject to significant delays relating to various causes, including failure to complete preclinical testing and earlier-stage clinical
trials  in  a  timely  manner,  inability  to  engage  contract  research  organizations  and  other  service  providers,  scheduling  conflicts  with
participating  clinicians  and  clinical  institutions,  changes  in  key  personnel  at  clinical  institutions,  difficulties  in  identifying  and  enrolling
patients  who  meet  trial  eligibility  criteria  and  shortages  of  available  drug  supply.  In  addition,  since  we  and  our  royalty  agreement
counterparties  license  our  product  candidates  to  others  to  fund  and  conduct  clinical  trials,  we,  and  they,  have  limited  control  over  how
quickly and efficiently such licensees advance those trials. Patient enrollment is a function of many factors, including the size of the patient
population, the proximity of patients to clinical sites, the concentration of patients in specialist centers, the eligibility criteria for the trial,
the  existence  of  competing  clinical  trials  and  the  availability  of  alternative  or  new  treatments.  Regardless  of  the  initial  size  or  relative
complexity of a clinical trial, the costs of such trial may be higher than expected due to increases in duration or size of the trial, changes in
the protocol under which the trial is being conducted, additional or special requirements of one or more of the healthcare centers where the
trial is being conducted, or changes in the regulatory requirements applicable to the trial or in the standards or guidelines for approval of the
product candidate being tested or for other unforeseen reasons.

In addition, our potential milestone and royalty providers may conduct clinical trials in foreign countries, which may subject them
to  further  delays  and  expenses  as  a  result  of  increased  drug  shipment  costs,  additional  regulatory  requirements  and  the  engagement  of
foreign  clinical  research  organizations,  and  may  expose  our  potential  milestone  and  royalty  providers  to  risks  associated  with  foreign
currency transactions to make contract payments denominated in the foreign currency where the trial is being conducted.

New products and technologies of other companies may render some or all of our potential milestone and royalty providers’ product
candidates noncompetitive or obsolete.

New  developments  by  others  may  render  our  potential  milestone  and  royalty  providers’  product  candidates  or  technologies
obsolete  or  uncompetitive.  Technologies  developed  and  utilized  by  the  biotechnology  and  pharmaceutical  industries  are  changing
continuously and substantially. Competition in antibody-based technologies is intense and is expected to increase in the future as a number
of  established  biotechnology  firms  and  large  chemical  and  pharmaceutical  companies  advance  in  these  fields.  In  addition,  as
biopharmaceutical  companies  increasingly  devote  significant  resources  to  innovate  next-generation  products  and  therapies  using  gene
editing and new curative modalities, such as cell and gene therapy, products on which we have a milestone or royalty rights may become
obsolete. Many of these competitors may

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be able to develop products and processes competitive with or superior to our potential milestone and royalty providers for many reasons,
including that they may have:

● significantly greater financial resources;

● larger research and development staffs;

● entered into arrangements with, or acquired, biotechnology companies to enhance their capabilities; or

● extensive experience in preclinical testing and human clinical trials.

These  factors  may  enable  others  to  develop  products  and  processes  competitive  with  or  superior  to  our  own  or  those  of  our
potential milestone and royalty providers. In addition, a significant amount of research in biotechnology is being carried out in universities
and other non-profit research organizations. These entities are becoming increasingly interested in the commercial value of their work and
may become more aggressive in seeking patent protection and licensing arrangements. Furthermore, many companies and universities tend
not to announce or disclose important discoveries or development programs until their patent position is secure or, for other reasons, later.
As  a  result,  we  and  our  potential  milestone  and  royalty  providers  may  not  be  able  to  track  development  of  competitive  products,
particularly at the early stages.

Positive developments in connection with a potentially competing product may have an adverse impact on our future potential for
receiving revenue derived from development milestones and royalties. For example, if another product is perceived to have a competitive
advantage, or another product’s failure is perceived to increase the likelihood that our licensed product will fail, our potential milestone and
royalty providers may halt development of product candidates in which we have an interest.

Our  potential  royalty  providers  may  be  unable  to  price  our  products  effectively  or  obtain  coverage  and  adequate  reimbursement  for
sales of our products, which would prevent our potential royalty providers’ products from becoming profitable and negatively affect the
royalties we may receive.

If  our  potential  royalty  providers  succeed  in  bringing  our  product  candidates  to  the  market,  they  may  not  be  considered  cost
effective, and reimbursement to the patient may not be available or may not be sufficient to allow our potential royalty providers to sell the
products on a competitive basis. In both the United States and elsewhere, sales of medical products and treatments are dependent, in part,
on  the  availability  of  coverage  and  adequate  reimbursement  from  third-party  payors,  such  as  government  and  private  insurance  plans.
Significant uncertainty exists as to the coverage and reimbursement status of any products for which our potential royalty providers may
obtain regulatory approval. Even if coverage is available, the associated reimbursement rate may not be adequate for our potential royalty
providers  to  cover  related  marketing  costs. Additionally,  coverage  and  reimbursement  policies  for  drug  products  can  differ  significantly
from payor to payor as there is no uniform policy of coverage and reimbursement for drug products among third-party payors in the United
States. Therefore,  the  process  of  obtaining  coverage  and  reimbursement  is  often  time-consuming  and  costly. Thus,  even  if  our  partners’
product candidates are approved by the FDA, our royalty partners may not be able to price the products effectively or obtain coverage and
adequate reimbursement for their products, which could adversely affect the royalties we receive.

Third-party  payors  are  increasingly  challenging  the  prices  charged  for  pharmaceutical  products  and  services.  Our  business  is
affected  by  the  efforts  of  government  and  third-party  payors  to  contain  or  reduce  the  cost  of  healthcare  through  various  means.  In  the
United  States,  there  have  been  and  will  continue  to  be  a  number  of  federal  and  state  proposals  to  implement  government  controls  on
pricing.

In addition, the emphasis on managed care in the United States has increased and will continue to increase the pressure on the
pricing of pharmaceutical products. We cannot predict whether any legislative or regulatory proposals will be adopted or the effect these
proposals or managed care efforts may have on our or our potential milestone and royalty providers’ businesses.

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We do not know whether there will be, or will continue to be, a viable market for the product candidates in which we have an ownership
or royalty interest.

Even  if  product  candidates  in  which  we  have  an  interest  receive  approval  in  the  future,  they  may  not  be  accepted  in  the
marketplace. In addition, our potential royalty providers may experience difficulties in launching new products, many of which are novel
and based on technologies that are unfamiliar to the healthcare community. We have no assurance healthcare providers and patients will
accept such products, if developed. Similarly, physicians may not accept a product if they believe other products to be more effective or
more cost effective or are more comfortable prescribing other products.

Furthermore, government agencies, as well as private organizations involved in healthcare, from time to time publish guidelines or
recommendations  to  healthcare  providers  and  patients.  Such  guidelines  or  recommendations  can  be  very  influential  and  may  adversely
affect product usage directly (for example, by recommending a decreased dosage of a product in conjunction with a concomitant therapy)
or  indirectly  (for  example,  by  recommending  a  competitive  product  over  a  product  in  which  we  have  an  ownership  or  royalty  interest).
Consequently, we do not know if physicians or patients will adopt or use products in which we have an ownership or royalty interest for
their approved indications.

Even  approved  and  marketed  products  are  subject  to  risks  relating  to  changes  in  the  market  for  such  products.  Introduction  or
increased  availability  of  generic  or  biosimilar  versions  of  products  can  alter  the  market  acceptance  of  branded  products.  In  addition,
unforeseen  safety  issues  may  arise  at  any  time,  regardless  of  the  length  of  time  a  product  has  been  on  the  market  which  may  lead  to
litigation, increased costs and delays or removal of the product from the market.

We are exposed to an increased risk of product liability claims.

The testing, marketing and sales of medical products entails an inherent risk of allegations of product liability. In the event of one
or more large, unforeseen awards of damages against us, our product liability insurance may not provide adequate coverage. A significant
product liability claim for which we were not adequately covered by insurance or indemnified by a third party would have to be paid from
cash or other assets, which could have an adverse effect on our business, financial condition and the value of our common stock. To the
extent  we  have  sufficient  insurance  coverage,  such  a  claim  would  presumably  result  in  higher  subsequent  insurance  rates.  In  addition,
product  liability  claims  can  have  various  other  ramifications,  regardless  of  merit  or  eventual  outcome,  including  loss  of  future  sales
opportunities, discontinuation of clinical trials, increased costs associated with replacing products, a negative impact on our goodwill and
reputation, costs to defend litigation, and divert our management’s attention from our business, each of which could also adversely affect
our business and operating results.

If  we  and  our  potential  royalty  providers  are  unable  to  protect  our  intellectual  property,  in  particular  patent  protection  for  principal
products,  product  candidates  and  processes  in  which  we  have  an  ownership  or  royalty  interest,  and  prevent  the  use  of  the  covered
subject matter by third parties, our potential royalty providers’ ability to compete in the market will be harmed, and we may not realize
our profit potential.

We and our potential royalty providers rely on patent protection, as well as a combination of copyright, trade secret, and trademark
laws to protect our proprietary technology and prevent others from duplicating our products or product candidates. However, these means
may afford only limited protection and may not:

● prevent our competitors from duplicating our products and those of our potential royalty providers;

● prevent our competitors from gaining access to our proprietary information and technology and that of our potential royalty

providers; or

● permit us or our potential royalty providers to gain or maintain a competitive advantage.

Because  of  the  length  of  time  and  the  expense  associated  with  bringing  new  products  to  the  marketplace,  we  and  our  potential
royalty  providers  hold  and  are  in  the  process  of  applying  for  a  number  of  patents  in  the  United  States  and  abroad  to  protect  product
candidates and important processes and also have obtained or have the right to obtain exclusive

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licenses to certain patents and applications filed by others. However, the mere issuance of a patent is not conclusive as to its validity or its
enforceability.

The  U.S.  Federal  Courts,  the  U.S.  Patent  &  Trademark  Office  or  equivalent  national  courts  or  patent  offices  elsewhere  may
invalidate  our  patents  or  find  them  unenforceable.  The  America  Invents  Act  introduced  post-grant  review  procedures  subjecting  U.S.
patents  to  post-grant  review  procedures  similar  to  European  oppositions.  U.S.  patents  owned  or  licensed  by  us  or  our  licensees  may
therefore be subject to post-grant review procedures, as well as other forms of review and re-examination. A decision in such proceedings
adverse to our interests could result in the loss of valuable patent rights, which would have a material adverse effect on our business. In
addition, the laws of foreign countries may not protect our intellectual property rights effectively or to the same extent as the laws of the
United States.

If our, and our potential royalty providers intellectual property rights are not protected adequately, our potential royalty providers
may not be able to commercialize technologies or products in which we have an ownership or royalty interest, and their competitors could
commercialize such technologies or products, which could result in a decrease in our potential royalty providers’ sales and market share
that  would  harm  our  business  and  operating  results.  Specifically,  the  patent  position  of  biotechnology  companies  generally  is  highly
uncertain  and  involves  complex  legal  and  factual  questions.  The  legal  standards  governing  the  validity  of  biotechnology  patents  are  in
transition,  and  current  defenses  as  to  issued  biotechnology  patents  may  not  be  adequate  or  available  in  the  future. Accordingly,  there  is
uncertainty as to:

● whether any pending or future patent applications held by us or our potential royalty providers will result in an issued patent,

or whether issued patents will provide meaningful protection against competitors or competitive technologies;

● whether competitors will be able to design around our or our potential royalty providers’ patents or develop and obtain patent
protection  for  technologies,  designs  or  methods  that  are  more  effective  than  those  covered  by  our  or  our  potential  royalty
providers’ patents and patent applications; or

● the extent to which our or our potential royalty providers’ product candidates could infringe on the intellectual property rights
of others, which may lead to costly litigation, result in the payment of substantial damages or royalties, reduce the royalty rate
due to us, and prevent our potential royalty providers from using our technology or product candidates.

If certain patents issued to others are upheld or if certain patent applications filed by others are issued and upheld, our potential
royalty providers may require licenses from others to develop and commercialize certain potential products in which we have an ownership
or royalty interest. These licenses, if required, may not be available on acceptable terms, or may trigger contractual royalty offset clauses in
our  license  agreements,  or  those  of  our  royalty-agreement  counterparties.  We  may  become  involved  in  litigation  to  determine  the
proprietary  rights  of  others,  and  any  such  litigation  will  presumably  be  costly,  time  consuming,  may  not  be  adequately  covered  by
insurance and may have other adverse effects on our business, such as inhibiting our potential royalty providers’ ability to compete in the
marketplace and absorbing significant management time.

Due to the uncertainties regarding biotechnology patents, we also have relied and will continue to rely upon trade secrets, know-
how  and  continuing  technological  advancement  to  develop  and  maintain  our  competitive  position.  Our  employees  and  contractors  are
typically  required  to  sign  confidentiality  agreements  under  which  they  agree  not  to  use  or  disclose  any  of  our  proprietary  information.
Research and development contracts and relationships between us and our scientific consultants and potential licensees provide access to
aspects of our know-how that are protected generally under confidentiality agreements. These confidentiality agreements may be breached
or  may  not  be  enforced  by  a  court.  To  the  extent  proprietary  information  is  divulged  to  competitors  or  to  the  public  generally,  such
disclosure may adversely affect our licensees’ ability to develop or commercialize our products by giving others a competitive advantage or
by undermining our patent position.

In  addition,  periodic  maintenance  fees,  renewal  fees,  annuity  fees  and  various  other  governmental  fees  on  patents  and  or
applications will be due to the U.S. and various foreign patent offices at various points over the lifetime of our and our licensees’ patents
and/or applications. We have systems in place to remind us to pay these fees, and we rely on our

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outside patent annuity service to pay these fees when due. Additionally, the U.S. and various foreign patent offices require compliance with
a number of procedural, documentary, fee payment and other similar provisions during the patent application process. We employ reputable
law firms and other professionals to help us comply, and in many cases, an inadvertent lapse can be cured by payment of a late fee or by
other means in accordance with rules applicable to the particular jurisdiction. However, there are situations in which noncompliance can
result  in  abandonment  or  lapse  of  the  patent  or  patent  application,  resulting  in  partial  or  complete  loss  of  patent  rights  in  the  relevant
jurisdiction. If such an event were to occur, it could have a material adverse effect on our business.

No assurance can be given that our, or our partners or licensees’ patents will be extended upon expiration, which may have an effect on
our financial condition and results of operation.

We hold and have filed applications for a number of patents in the United States and internationally to protect our products and
technology and have the right to obtain licenses to, or income streams based on, certain patents and applications filed by others. However,
the life of a patent, and thus the protection it affords, is limited. Significant patents in our portfolio will expire in the coming years and
while various extensions may be available, on a jurisdiction-by-jurisdiction basis, continuous patent protection is not guaranteed. While we
expect to seek, and expect our partners to seek, extensions of patent terms for issued patents where available and when necessary, failure to
secure patent extensions may have an effect on our financial condition and results of operations.

Litigation regarding intellectual property and/or the enforcement of our contractual rights against licensees and third parties can be
costly and expose us to risks of counterclaims against us.

From  time  to  time,  we  are  required  to  engage  in  litigation,  arbitration  or  other  proceedings  to  protect  our  intellectual  property
and/or  enforce  our  contractual  rights  against  former  or  current  licensees  or  third  parties,  including  third-party  collaborators  of  such
licensees. The cost to us of complex proceedings of this type, even if resolved in our favor, can be substantial, and the parties opposing us
in such proceedings may be able to sustain the cost of such proceedings more effectively than we can if they have substantially greater
resources  than  we  have.  Any  such  proceedings  and  any  negotiations  leading  up  to  them  also  may  be  time-consuming  and  can  divert
management’s attention and resources. If a proceeding of this type is resolved against us, we may lose the value associated with contract
rights contained in our arrangements with licensees and third parties, the patents that are the subject of such proceeding may be declared
invalid, we could be exposed to counterclaims against us, and we could be held liable for significant damages, fees and/or costs. While it is
our current plan to continue to review and pursue, on a selective basis, potential material contractual breaches against licensees and third
parties (including third-party collaborators of licensees) and/or infringement of our intellectual property rights or technology, there can be
no  assurance  that  any  such  enforcement  actions  will  be  successful,  or  if  successful,  the  timing  of  such  success  or  that  we  will  have
sufficient capital to prosecute any such actions to a successful conclusion.

In June 2021, we initiated an arbitration proceeding against one of our licensees (the “Licensee”) with the American Arbitration
Association/International Centre for Dispute Resolution.  We believe that the Licensee violated the terms of our License Agreement (the
“License Agreement”)  and  that  we  are  entitled  to  milestone  and  royalty  payments  under  the  License Agreement,  and  that  the  Licensee
impermissibly attempted to sublicense our licensed patent rights.  We also seek damages and fees and costs of the arbitration (which fees
and costs are currently estimated to be in the mid-single-digit millions of U.S. dollars range).  In response, the Licensee seeks declarations
that the License Agreement, under our interpretation, is unlawful, void and unenforceable, and that the License Agreement has expired.  To
date, the Licensee has not filed any counterclaims against us. However, to the extent the Licensee is deemed to be the prevailing party, the
arbitrators, in their discretion, may require us to pay the Licensee’s fees and costs of the arbitration (currently estimated to be in the mid-
single-digit  millions  of  U.S.  dollars  range). A  hearing  before  a  panel  of  arbitrators  was  held  on  this  matter  in  November  2022,  and  the
parties have submitted post-hearing briefs. A decision is expected in the first quarter of 2023.

In addition, we may be subject to claims that we, or our licensees, are infringing other parties’ patents. If such claims are resolved
against  us,  we  or  our  licensees  may  be  enjoined  from  developing,  manufacturing,  selling  or  importing  products,  processes  or  services
unless we obtain a license from the other party. Such a license may not be available on reasonable terms or at all, thus preventing us, or our
licensees, from using these products, processes or services and adversely affecting our potential future revenue.

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Uncertainties resulting from our participation in litigation, arbitration or other proceedings involving intellectual property and/or
contractual rights could have a material adverse effect on our or our partners’ ability to compete in the marketplace. There could also be
public  announcements  of  the  results  of  hearings,  motions  or  interim  proceedings  or  developments.  If  securities  analysts  or  investors
perceive these results to be negative, the perceived value of the drug product candidates as to which we hold potential milestone or royalty
interests,  or  intellectual  property  or  contractual  rights  could  be  diminished.  Accordingly,  the  market  price  of  our  common  stock  may
decline.  Uncertainties  resulting  from  the  initiation  and  continuation  of  litigation,  arbitration  or  other  proceedings  involving  intellectual
property and/or contractual rights could have a material adverse effect on our business, financial condition and results of operation.

Risks Related to Our Reliance on Third Parties

We  and  our  partners  rely  heavily  on  license  and  collaboration  relationships,  and  any  disputes  or  litigation  with  our  partners  or
termination  or  breach  of  any  of  the  related  agreements  could  reduce  the  financial  resources  available  to  us,  including  our  ability  to
receive milestone payments and future potential royalty and other revenues. License or collaboration agreements relating to products
may, in some instances, be unilaterally terminated or disputes may arise which may affect our potential milestones, royalties and other
payments.

License  or  collaboration  agreements  relating  to  the  products  generating  our  future  potential  milestones  and  royalties  and  other
payment rights may be terminated, which may adversely affect sales of such products and therefore the potential payments we may receive.
For  example,  under  certain  license  or  collaboration  agreements,  marketers  may  retain  the  right  to  unilaterally  terminate  the  agreements.
When  the  last  patent  covering  a  product  expires  or  is  otherwise  invalidated  in  a  country,  a  marketer  may  be  economically  motivated  to
terminate  the  applicable  license  or  collaboration  agreement,  either  in  whole  or  with  respect  to  such  country,  in  order  to  terminate  its
payment and other obligations. In the event of such a termination, a licensor (which may be us in the case of our out-licensed products) or
collaborator may no longer receive all of the payments it expected to receive from the applicable licensee or collaborator and may also be
unable to find another company to continue developing and commercializing the product on the same or similar terms as those under the
license or collaboration agreement that has been terminated.

In addition, license or collaboration agreements may fail to provide significant protection for the applicable licensor (which may
be us in the case of our out-licensed products) or collaborator in case of the applicable licensee’s or collaborator’s failure to perform or in
the  event  of  disputes.  License  and  collaboration  agreements  which  relate  to  the  products  underlying  our  potential  future  milestones,
royalties and other payment rights, are complex and certain provisions in such agreements may be susceptible to multiple interpretations.
Disputes  may  arise  regarding  intellectual  property,  royalty  terms,  payment  rights  or  other  contractual  terms  subject  to  a  license  or
collaboration agreement, including:

● the scope or duration of rights granted under the license or collaboration agreement and other interpretative issues;

● the amounts or timing of royalties, milestones or other payments due under the license or collaboration agreement;

● the sublicensing of patent or other rights under our license or collaboration relationships;

● the diligence obligations under the license or collaboration agreement and what activities satisfy such diligence obligations:

● the inventorship and ownership of inventions and know-how resulting from the joint creation or use of intellectual property

by us or our partners; and

● the priority of invention of patented technology.

The resolution of any contract interpretation disagreement that may arise could narrow what the licensor (which may be us in the

case of our out-licensed products) or collaborator believes to be the scope of its rights to the relevant

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intellectual property or technology, or decrease the licensee’s or collaborator’s financial or other obligations under the relevant agreement,
any of which could in turn impact the value of our potential royalties, milestones and other payments and have a material adverse effect on
our  business,  financial  condition,  results  of  operations  and  prospects.  If  a  marketer  were  to  default  on  its  obligations  under  a  license  or
collaboration  agreement,  the  licensor’s  or  collaborator’s  remedy  may  be  limited  either  to  terminating  certain  licenses  or  collaborations
related to certain countries or to generally terminate the license or collaboration agreement with respect to such country. In such cases, we
may  not  have  the  right  to  seek  to  enforce  the  rights  of  the  licensor  or  collaborator  (if  not  us)  and  we  may  be  required  to  rely  on  the
resources and willingness of the licensor or collaborator (if not us) to enforce its rights against the applicable licensee or collaborator. In
any of these situations, if the expected upfront, milestone, royalty or other payments under the license or collaboration agreements do not
materialize,  this  could  result  in  a  significant  loss  to  us  and  materially  adversely  affect  our  business,  financial  condition  and  results  of
operation. At any given time, the Company may be engaged in discussions with its licensees or collaborators regarding the interpretation of
the payment and other provisions relating to products as to which we have milestones and potential royalty or other payment rights. Should
any such discussions result in a disagreement regarding a particular product that cannot be resolved satisfactorily to us, we may end up
being  paid  less  than  anticipated  on  such  product  should  it  successfully  progress  through  clinical  development  and  be  approved  for
commercialization. Should our milestone and future potential royalty or other payment interests be reduced or eliminated as a result of any
such disagreement, it could have an adverse effect on our business, financial condition, results of operation and prospects.

Our existing collaborations may not continue or be successful, and we may be unable to enter into future arrangements to develop
and commercialize our unpartnered assets. Generally, our current collaborative partners have the right to terminate their collaborations at
will or under specified circumstances. If any of our collaborative partners breach or terminate their agreements with us or otherwise fail to
conduct their collaborative activities successfully (for example, by not making required payments when due, or at all or failing to engage in
commercially  reasonable  efforts  to  develop  products  if  required),  our  product  development  under  these  agreements  will  be  delayed  or
terminated.

Our potential milestone and royalty providers may rely on third parties to provide services in connection with their product candidate
development and manufacturing programs. The inadequate performance by or loss of any of these service providers could affect our
potential milestone and royalty providers’ product candidate development.

Third  parties  provide  services  in  connection  with  preclinical  and  clinical  development  programs,  including  in  vitro  and  in  vivo
studies,  assay  and  reagent  development,  immunohistochemistry,  toxicology,  pharmacokinetics,  clinical  trial  support,  manufacturing  and
other outsourced activities. If these service providers do not adequately perform the services for which our potential milestone and royalty
providers  have  contracted,  or  cease  to  continue  operations,  and  our  potential  milestone  and  royalty  partners  are  not  able  to  find  a
replacement  provider  quickly  or  lose  information  or  items  associated  with  their  drug  product  candidates,  our  potential  milestone  and
royalty providers’ development programs and receipt of any potential resulting income may be delayed.

Agreements with other third parties, many of which are material to our business, expose us to numerous risks and have caused us to
incur additional liabilities.

Because our licensees, suppliers and contractors are independent third parties, they may be subject to different risks than we are
and have significant discretion in, and different criteria for, determining the efforts and resources they will apply related to their agreements
with us. If these licensees, suppliers and contractors do not successfully perform the functions for which they are responsible, we may not
have the capabilities, resources or rights to do so on our own.

We do not know whether we or our licensees will successfully develop and market any of the products that are or may become the
subject of any of our licensing arrangements. In addition, third-party arrangements such as ours also increase uncertainties in the related
decision-making  processes  and  resulting  progress  under  the  arrangements,  as  we  and  our  licensees  may  reach  different  conclusions,  or
support different paths forward, based on the same information, particularly when large amounts of technical data are involved.

In addition, under the contracts with HCRP, the amortization for the reporting period is calculated based on the payments expected
to be made by the licensees to HCRP over the term of the arrangement. Any changes to the estimated payments by the licensees to HCRP
can result in a material adjustment to revenue previously reported.

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Failure of our potential milestone and royalty providers’ product candidates to meet current Good Manufacturing Practices standards
may cause delays in regulatory approval and penalties for noncompliance.

Our potential milestone and royalty providers may rely on third party manufacturers and such contract manufacturers are required
to  produce  clinical  product  candidates  under  cGMP  to  meet  acceptable  standards  for  use  in  clinical  trials  and  for  commercial  sale,  as
applicable. If such standards change, the ability of contract manufacturers to produce our potential milestone and royalty providers’ drug
product candidates on the schedule required for clinical trials or to meet commercial requirements may be affected. In addition, contract
manufacturers  may  not  perform  their  obligations  under  their  agreements  with  our  potential  milestone  and  royalty  providers  or  may
discontinue  their  business  before  the  time  required  by  us  to  successfully  produce  clinical  and  commercial  supplies  of  our  potential
milestone and royalty providers’ product candidates.

Contract  manufacturers  are  subject  to  pre-approval  inspections  and  periodic  unannounced  inspections  by  the  FDA  and
corresponding  state  and  foreign  authorities  to  ensure  strict  compliance  with  cGMP  and  other  applicable  government  regulations  and
corresponding  foreign  standards.  We  do  not  have  control  over  a  third-party  manufacturer’s  compliance  with  these  regulations  and
standards. Any  difficulties  or  delays  in  contractors’  manufacturing  and  supply  of  our  potential  milestone  and  royalty  providers’  product
candidates  or  any  failure  of  our  potential  milestone  and  royalty  providers’  contractors  to  maintain  compliance  with  the  applicable
regulations  and  standards  could  increase  costs,  reduce  revenue,  make  our  licensees  postpone  or  cancel  clinical  trials,  prevent  or  delay
regulatory approval by the FDA and corresponding state and foreign authorities, prevent the import and/or export of our potential milestone
and royalty providers’ product candidates, or cause any of our potential milestone and royalty providers’ products that may be approved for
commercial sale to be recalled or withdrawn.

Certain of our technologies are in-licensed from third parties, so our and our licensees’ use of them may be restricted and subject to
additional risks.

We  have  licensed  technologies  from  third  parties.  These  technologies  include  phage  display  technologies  licensed  to  us  in
connection  with  our  bacterial  cell  expression  technology  licensing  program  and  antibody  products.  However,  our  and  our  licensees  and
collaborators’ use of these technologies is limited by certain contractual provisions in the licenses relating to them, and although we have
obtained numerous licenses, intellectual property rights in the area of phage display are particularly complex. If we are unable to maintain
our licenses, patents or other intellectual property, we could lose important protections that are material to continuing our operations and for
future prospects. Our licensors also may seek to terminate our license, which could cause us and our licensees to lose the right to use the
licensed intellectual property and adversely affect our and our licensees’ ability to commercialize our technologies, products or services.

Risks Related to Employees, Location, Data Integrity, and Litigation

The loss of, COVID-19 related absence of, or changes in any of our key personnel, could delay or prevent achieving our objectives.

Our business efforts could be adversely affected by the loss or COVID-19 related absence of one or more key members of our
staff. We currently do not have key person insurance on any of our employees. In addition, given our minimal employee base, a COVID-19
outbreak in our employee population could significantly hinder our ability to meet our operating objectives. Changes in management may
cause  disruption  in  our  business,  strategic  and  employee  relationships,  which  may  delay  or  prevent  the  achievement  of  our  business
objectives. During the transition periods, there may be uncertainty among investors, employees and others concerning our future direction
and performance.

Because we are a small biopharmaceutical focused company with limited resources, we may not be able to attract and retain qualified
personnel.

We  had  12  full-time  employees  and  one  part-time  employee  as  of  March  6,  2023.  We  may  require  additional  experienced
executive,  accounting,  legal,  administrative  and  other  personnel  from  time  to  time  in  the  future.  We  are  highly  dependent  on  principal
members  of  our  executive  team,  the  loss  of  whose  services  may  adversely  impact  the  achievement  of  our  objectives.  There  is  intense
competition for the services of these personnel, especially in California.

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Moreover, we expect the high cost of living in the San Francisco Bay Area, where our headquarters is located, may impair our
ability to attract and retain employees in the future. If we do not succeed in attracting new personnel and retaining and motivating existing
personnel, our business may suffer, and we may be unable to implement our current initiatives or grow effectively.

We rely and will continue to rely on outsourcing arrangements for many of our activities, including financial reporting and accounting
and human resources.

Due  to  our  small  number  of  employees,  we  rely,  and  expect  to  continue  to  rely,  on  outsourcing  arrangements  for  a  significant
portion  of  our  activities,  including  financial  reporting  and  accounting  and  human  resources,  as  well  as  for  certain  of  our  functions  as  a
public company. We may have limited control over these third parties, and we cannot guarantee that they will perform their obligations in
an effective and timely manner.

Our  employees  may  engage  in  misconduct  or  other  improper  activities,  including  noncompliance  with  regulatory  standards  and
requirements and insider trading.

We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees could include intentional failures to
comply with applicable regulations, provide accurate information to regulatory authorities, comply with federal and state fraud and abuse
laws and regulations, report financial information or data accurately or disclose unauthorized activities to us. In particular, the health care
industry  is  subject  to  extensive  laws  and  regulations  intended  to  prevent  fraud,  misconduct,  kickbacks,  self-dealing  and  other  abusive
practices.  It  is  not  always  possible  to  identify  and  deter  employee  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  these  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 fines or other sanctions.

Our business and operations would suffer in the event of system failures.

Despite the implementation of security measures, our internal computer systems and those of our current and any future licensees,
suppliers, contractors and consultants are vulnerable to damage from cyberattacks, computer viruses, unauthorized access, natural disasters,
terrorism,  war  and  telecommunication  and  electrical  failures.  We  could  experience  failures  in  our  information  systems  and  computer
servers,  which  could  be  the  result  of  a  cyberattacks  and  could  result  in  an  interruption  of  our  normal  business  operations  and  require
substantial  expenditure  of  financial  and  administrative  resources  to  remedy.  System  failures,  accidents  or  security  breaches  can  cause
interruptions in our operations and can result in a material disruption of our development programs and other business operations. To the
extent that any disruption or security breach were to result in a loss of, or damage to, our data or applications, or inappropriate disclosure of
confidential or proprietary information, we could incur liability.

If our information technology systems or data or those of our partners or contractors are or were compromised by security incidents,
our  sensitive  information  could  be  exposed  or  stolen  and  we  could  experience  adverse  consequences,  including  regulatory
investigations or actions; litigation; fines and penalties; a disruption of our business operations; reputational harm; loss of revenue or
profits; and other adverse business consequences.

Our business is increasingly dependent on critical, complex and interdependent information technology systems, including cloud-
based  systems,  to  support  business  processes  as  well  as  internal  and  external  communications.  Our  computer  systems,  and  those  of  our
partners  and  contractors,  are  potentially  vulnerable  to  breakdown,  malicious  intrusion  and  computer  viruses  that  may  result  in  the
impairment  of  key  business  processes.  Such  disruptions  and  breaches  of  security  could  have  a  material  adverse  effect  on  our  business,
financial condition and results of operations.

In  the  ordinary  course  of  our  business,  we  maintain  sensitive  data  on  our  networks,  including  our  intellectual  property  and
proprietary  or  confidential  business  information  relating  to  our  business  and  that  of  our  business  partners.  The  secure  maintenance  and
protection of this information is critical to our business and reputation. Threats to our systems and sensitive data can come from a variety of
sources, ranging in sophistication from a person with authorized access to

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our  network,  to  an  individual  hacker,  to  an  organized  threat  actor  organization,  to  a  state-sponsored  attack.  Cyber  threats  also  may  be
intentional or accidental. It is often difficult to anticipate or immediately detect cyber incidents and the damage caused by such incidents.
Data  breaches  and  any  unauthorized  access  to  our  systems  could  compromise  our  intellectual  property  and  expose  sensitive  business
information. A  data  security  breach  could  also  lead  to  exposure  of  personal  information  of  our  employees,  legacy  clinical  trial  patients,
vendors and others, which could expose us to liability under foreign, federal, or state privacy laws. Theft of proprietary information could
be used to compete against us and could cause us to incur significant remediation costs, result in product development delays, disrupt key
business operations and divert attention of management and key information technology resources. These incidents could also subject us to
liability, expose us to significant expense and cause significant harm to our reputation and business.

Authorities worldwide have been warning businesses of increased cybersecurity threats from actors seeking to exploit the COVID-
19  pandemic.  Moreover,  failure  to  maintain  effective  internal  accounting  controls  related  to  data  security  breaches  and  cybersecurity  in
general could impact our ability to produce timely and accurate financial statements and could subject us to regulatory scrutiny. In addition,
these breaches and other inappropriate access can be difficult to detect, and any delay in identifying them may lead to increased harm of the
type described above. Moreover, the prevalent use of mobile devices that access confidential information increases the risk of data security
breaches, which could lead to the loss of confidential information, trade secrets or other intellectual property.

While we have implemented security measures that are intended to protect our data security and information technology systems,
such  measures  may  not  prevent  all  such  cyber  incidents.  Further,  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.

Compliance  with  stringent  and  changing  obligations  related  to  data  privacy  and  security  protection  is  a  rigorous  and  time-intensive
process. Our actual or perceived failure to comply with any privacy or data security obligations could lead to regulatory investigations
or actions; litigation; fines and penalties; a disruption of our business operations; reputational harm; loss of revenue or profits; loss of
customers or sales; and other adverse business consequences.

Many  states,  countries  and  jurisdictions  strictly  regulate  data  privacy  and  protection  and  may  impose  significant  penalties  for
failure to comply with these requirements. For example, in the U.S., the CCPA became effective on January 1, 2020. The CCPA establishes
a  privacy  framework  for  covered  businesses,  including  an  expansive  definition  of  personal  information  and  data  privacy  rights  for
California residents and the CPRA which became effective on January 1, 2023, which expands upon the CCPA. The CCPA and CPRA give
California residents expanded privacy rights, including the right to request correction, access and deletion of their personal information, the
right  to  opt  out  of  certain  personal  information  sharing,  and  the  right  to  receive  detailed  information  about  how  their  information  is
processed. The CCPA and CPRA include a framework with potentially severe statutory damages and private rights of action and will likely
impact our business activities, along with increasing our compliance costs and potential liability. If we fail to comply with the CCPA and
CPRA, we may face significant fines and penalties that could adversely affect our business, financial condition and results of operations.
Other states are beginning to pass similar laws.

Compliance with laws and regulations concerning privacy, cybersecurity, data governance and data protection is a rigorous and
time-intensive process, and we may be required to put in place additional mechanisms ensuring compliance with the laws and regulations
and incur substantial expenditures. If we fail to comply with any such laws or regulations, we may face significant fines and penalties that
could adversely affect our business, financial condition and results of operations. Further, data incidents experienced by us, our partners or
collaborators  could  lead  to  significant  fines,  required  corrective  action,  the  loss  of  trade  secrets  or  other  intellectual  property,  public
disclosure  of  sensitive  clinical  or  commercial  data,  and  the  exposure  of  personally  identifiable  information  (including  sensitive  personal
information) of our employees, partners, and others. A data security breach or privacy violation that leads to disclosure or modification of,
or  prevents  access  to,  patient  information,  including  personally  identifiable  information  or  protected  health  information,  could  result  in
fines, increased costs or loss of revenue as a result of:

● harm to our reputation;

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● fines imposed on us by regulatory authorities;

● additional compliance obligations under federal, state or foreign laws;

● requirements for mandatory corrective action to be taken by us; and

● requirements to verify the correctness of database contents and otherwise subject us to liability under laws and regulations

that protect personal data.

In addition, cyber incidents can be difficult to detect, and any delay in identifying them may lead to increased harm of the type
described  above.  Moreover,  the  prevalent  use  of  mobile  devices  that  access  confidential  information  increases  the  risk  of  data  security
breaches. While we have implemented security measures to protect our data security and information technology systems, such measures
may not prevent such events. Lastly, we cannot guarantee that we are in compliance with all applicable data protection laws and regulations
as they are enforced now or as they evolve.

Risks Related to Government Regulation

Even  after  FDA  approval,  a  product  may  be  subject  to  additional  testing  or  significant  marketing  restrictions,  its  approval  may  be
withdrawn, or it may be removed voluntarily from the market.

Even  if  our  potential  royalty  providers  receive  regulatory  approval  for  our  product  candidates,  they  will  be  subject  to  ongoing
regulatory oversight and review by the FDA and other regulatory entities. The FDA, the EMA, or another regulatory agency may impose,
as a condition of the approval, ongoing requirements for post-approval studies or post-approval obligations, including additional research
and development and clinical trials, and the FDA, EMA or other regulatory agency subsequently may withdraw approval based on these
additional trials or obligations.

Even for approved products, the FDA, EMA or other regulatory agency may impose significant restrictions on the indicated uses,
conditions  for  use,  labeling,  advertising,  promotion,  marketing  and  production  of  such  product.  In  addition,  the  labeling,  packaging,
adverse  event  reporting,  storage,  advertising,  promotion  and  record-keeping  for  such  products  are  subject  to  extensive  regulatory
requirements.

Furthermore,  marketing  approval  of  a  product  may  be  withdrawn  by  the  FDA,  the  EMA  or  another  regulatory  agency  or  such
product may be withdrawn voluntarily by our potential royalty providers based, for example, on subsequently arising safety concerns. The
FDA,  EMA  and  other  agencies  also  may  impose  various  civil  or  criminal  sanctions  for  failure  to  comply  with  regulatory  requirements,
including withdrawal of product approval.

Healthcare reform measures and other statutory or regulatory changes could adversely affect our business.

The United States and some foreign jurisdictions have enacted or are considering a number of legislative and regulatory proposals
to  change  the  healthcare  system  in  ways  that  could  affect  our  potential  royalty  providers’  ability  to  sell  products  in  which  we  have
ownership or and royalty interests, if approved, profitably. Among policy makers and payors in the United States and elsewhere, there is
significant interest in promoting changes in healthcare systems with the stated goals of containing healthcare costs, improving quality and
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. For example, in March 2010, the Patient Protection and Affordable Care Act, as amended by the
Health Care and Education Reconciliation Act, or collectively the ACA, was enacted, which, among other things, substantially changed the
way healthcare is financed by both governmental and private payors.

There have been judicial, Congressional and executive branch challenges to the ACA. As a result, there have been delays in the
implementation of, and action taken to repeal or replace, certain aspects of the ACA. For example, on June 17, 2021, the U.S. Supreme
Court dismissed a challenge on procedural grounds that argued the ACA is unconstitutional in its entirety because the “individual mandate”
was  repealed  by  Congress.    In  addition,  there  have  been  a  number  of  health  reform  initiatives  by  the  Biden  administration  that  have
impacted the ACA. On August 16, 2022,

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President Biden signed the Inflation Reduction Act of 2022, or the IRA, into law, which among other things, extends enhanced subsidies
for  individuals  purchasing  health  insurance  coverage  in ACA  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  ACA  will  be  subject  to  judicial  or  Congressional
challenges  in  the  future.  It  is  unclear  how  other  such  challenges,  and  the  healthcare  reform  measures  of  the  Biden  administration  will
impact the ACA and our business.

Other legislative changes have also been proposed and adopted since the ACA was enacted. For example, the Budget Control Act
of 2011 resulted in aggregate reductions in Medicare payments to providers of up to two percent per fiscal year, starting in 2013 and, due to
subsequent legislative amendments to the statute, will remain in effect until 2031 unless additional Congressional action is taken. Under
current  legislation  the  actual  reduction  in  Medicare  payments  will  vary  from  1%  in  2022  to  up  to  4%  in  the  final  fiscal  year  of  this
sequester.  In  addition,  the American  Taxpayer  Relief Act  of  2012,  among  other  things,  reduced  Medicare  payments  to  several  types  of
providers and increased the statute of limitations period for the government to recover overpayments to providers from three to five years.
Such laws, and others that may affect our business that have been recently enacted or may in the future be enacted, may result in additional
reductions in Medicare and other healthcare funding.

Also, there has been heightened governmental scrutiny recently in the U.S. over 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 product pricing, review the relationship
between  pricing  and  manufacturer  patient  programs,  and  reform  government  program  reimbursement  methodologies  for  products.  For
example,  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 to advance these principles. In addition, the IRA,
among other things, (i) directs the Secretary of HHS to negotiate the price of certain high-expenditure, single-source drugs and biologics
covered under Medicare Part B and Medicare Part D, and subjects drug manufacturers to civil monetary penalties and a potential excise tax
by  offering  a  price  that  is  not  equal  to  or  less  than  the  negotiated  “maximum  fair  price”  under  the  law,  and  (ii)  imposes  rebates  under
Medicare Part B and Medicare Part D to penalize price increases that outpace inflation. The IRA permits HHS to implement many of these
provisions through guidance, as opposed to regulation, for the initial years. These provisions will 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 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 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. In addition, beginning in 2023, Centers for Medicare & Medicaid Services,
or CMS, will require manufacturers to refund CMS for certain discarded amounts of single-dose container and single-use package drugs. At
the  state  level,  legislatures  have  increasingly  passed  legislation  and  implemented  regulations  designed  to  control  pharmaceutical  and
biological  product  pricing,  including  price  or  patient  reimbursement  constraints,  discounts,  and  restrictions  on  certain  product  access.  In
some cases, such legislation and regulations have been designed to encourage importation from other countries and bulk purchasing.

An  expansion  in  the  government’s  role  in  the  U.S.  healthcare  industry  may  cause  general  downward  pressure  on  the  prices  of
prescription drug products, lower reimbursements for providers, and reduced product utilization, any of which could adversely affect our
business and results of operations. We expect that additional healthcare reform measures will be adopted in the future. We cannot know
what  form  any  such  new  legislation  may  take  or  the  market’s  perception  of  how  such  legislation  would  affect  us.  Any  reduction  in
reimbursement from government programs may result in a similar reduction in payments from private payors. The implementation of cost
containment measures or other healthcare reforms may prevent our potential royalty providers from being able to generate revenue, attain
profitability, develop, or commercialize our current product candidates in which we have an ownership or royalty interest.

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We and our potential milestone and royalty providers are subject to various state and federal healthcare-related laws and regulations
that if violated may impact the commercialization of our product candidates for which we possess milestone or royalty rights or could
subject us to significant fines and penalties.

Our  operations  may  be  directly  or  indirectly  subject  to  various  state  and  federal  healthcare  laws,  including  the  federal  Anti-
Kickback Statute, the federal False Claims Act and state and federal data privacy and security laws. These laws may impact, among other
things, the commercial operations for any of our product candidates that may be approved for commercial sale.

The  federal Anti-Kickback  Statute  prohibits,  among  other  things,  persons  and  entities  from  knowingly  and  willfully  soliciting,
offering, receiving or providing any remuneration, directly or indirectly, in cash or in kind, in exchange for or to induce either the referral
of an individual for, or the furnishing or arranging for the purchase, lease, or order of a good or service for which payment may be made
under a federal healthcare program, such as the Medicare and Medicaid programs. The ACA modified the federal Anti-Kickback Statute’s
intent requirement so that a person or entity no longer needs to have actual knowledge of the statute or the specific intent to violate it to
have committed a violation. In addition, 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 healthcare covered business, the statute has been violated. The Anti-
Kickback Statute is broad and prohibits many arrangements and practices that are lawful in businesses outside of the healthcare industry.

The  federal  false  claims  laws,  including  the  False  Claims Act,  and  civil  monetary  penalties  laws  prohibit,  among  other  things,
persons and entities from knowingly filing, or causing to be filed, a false claim to, or the knowing use of false statements to obtain payment
from the federal government. Certain suits filed under the False Claims Act, known as “qui tam” actions, can be brought by any individual
on behalf of the government and such individual, commonly known as a “whistleblower”, or “relator” may share in any amounts paid by
the entity to the government in fines or settlement. The filing of qui tam actions has caused a number of pharmaceutical, medical device
and other healthcare companies to have to defend and/or settle a False Claims Act action.

The Health Insurance Portability and Accountability Act of 1996, or HIPAA created new federal criminal statutes that prohibit,
among other things, executing a scheme to defraud any healthcare benefit program, including a private payor, or 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.

HIPAA,  as  amended  by  the  Health  Information  Technology  and  Clinical  Health  Act,  and  its  implementing  regulations,  also
imposes certain requirements relating to the privacy, security and transmission of individually identifiable health information by entities
subject  to  the  law,  such  as  certain  healthcare  providers,  health  plans,  and  healthcare  clearinghouses  as  well  as  their  respective  business
associates  and  their  subcontractors  that  perform  certain  functions  or  activities  that  involve  the  use  or  disclosure  of  protected  health
information on their behalf.

Many states also have adopted laws similar to each of the federal laws described above, some of which apply to healthcare items
or  services  reimbursed  by  any  source,  not  only  federal  healthcare  programs,  such  as  the  Medicare  and  Medicaid  programs.  In  addition,
some  states  have  laws  that  require  pharmaceutical  companies  to  comply  with  the  pharmaceutical  industry’s  voluntary  compliance
guidelines  and  the  applicable  compliance  guidance  promulgated  by  the  federal  government.  Additionally,  certain  state  and  local  laws
require  the  registration  of  pharmaceutical  sales  representatives,  restrict  payments  that  may  be  made  to  healthcare  providers  and  other
potential referral sources, and require manufacturers to report information related to payments and other transfers of value to physicians
and  other  healthcare  providers.  Further,  some  states  have  laws  governing  the  privacy  and  security  of  health  information  in  certain
circumstances,  many  of  which  are  not  preempted  by  HIPAA  and  differ  from  each  other  in  significant  ways  and  may  not  have  the  same
effect, thus complicating compliance efforts.

Because of the breadth of these laws, and the narrowness of the statutory exceptions and regulatory safe harbors available, it is
possible that some of our or our potential milestone and royalty providers’ business activities could be subject to challenge under one or
more of such laws.

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If we or our potential milestone and royalty providers are found to be in violation of any of the laws and regulations described
above or other applicable state and federal healthcare laws, we or our potential milestone and royalty providers may be subject to penalties,
including  significant  civil,  criminal,  and  administrative  penalties,  damages,  fines,  disgorgement,  imprisonment,  integrity  oversight  and
reporting  obligations,  reputational  harm,  exclusion  from  government  healthcare  reimbursement  programs  and  the  curtailment  or
restructuring of our or our potential milestone and royalty providers’ operations, any of which could have a material adverse effect on our
business and results of operations. In addition, we and our licensees may be subject to certain analogous foreign laws and violations of such
laws could result in significant penalties.

We  are  subject  to  the  U.S.  Foreign  Corrupt  Practices Act  and  other  anti-corruption  laws,  as  well  as  export  control  laws,  import  and
customs laws, trade and economic sanctions laws and other laws governing our operations.

We are subject to the U.S. Foreign Corrupt Practices Act and other anti-corruption laws, as well as export control laws, import and
customs laws, trade and economic sanctions laws and other laws governing our operations. Our operations are subject to anti-corruption
laws including the FCPA, the U.S. domestic bribery statute contained in 18 U.S.C. §201, the U.S. Travel Act, and other anti-corruption laws
that apply in countries where we do business. The FCPA and these other laws generally prohibit us and our employees and intermediaries
from authorizing, promising, offering, or providing, directly or indirectly, improper or prohibited payments, or anything else of value, to
government officials or other persons to obtain or retain business or gain some other business advantage. We and the royalty agreement
counterparties  and  licensees  who  generate  our  royalties  operate  in  a  number  of  jurisdictions  that  pose  a  high  risk  of  potential  FCPA
violations,  and  we  participate  in  collaborations  and  relationships  with  third  parties  whose  corrupt  or  illegal  activities  could  potentially
subject us to liability under the FCPA or local anti-corruption laws, even if we do not explicitly authorize or have actual knowledge of such
activities. In addition, we cannot predict the nature, scope or effect of future regulatory requirements to which our international operations
might  be  subject  or  the  manner  in  which  existing  laws  might  be  administered  or  interpreted.  We  are  also  subject  to  other  laws  and
regulations  governing  our  international  operations,  including  regulations  administered  by  the  governments  of  the  United  States  and
authorities in the European Union, including applicable export control regulations, economic sanctions and embargoes on certain countries
and persons, anti-money laundering laws, import and customs requirements and currency exchange regulations, collectively referred to as
the Trade  Control  laws. There  is  no  assurance  that  we  will  be  completely  effective  in  ensuring  our  compliance  with  all  applicable  anti-
corruption laws, including the FCPA or other legal requirements, including Trade Control laws. If we are not in compliance with the FCPA
and other anticorruption laws or Trade Control laws, we may be subject to criminal and civil penalties, disgorgement and other sanctions
and remedial measures, and legal expenses, which could have an adverse impact on our business, financial condition, results of operations
and liquidity. Likewise, any investigation of any potential violations of the FCPA, other anti-corruption laws or Trade Control laws by the
United  States  or  other  authorities  could  also  have  an  adverse  impact  on  our  reputation,  our  business,  financial  condition  and  results  of
operations. Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws and regulations
will  involve  substantial  costs.  Because  of  the  breadth  of  these  laws  and  the  narrowness  of  the  statutory  exceptions  and  safe  harbors
available, it is possible that some of our business activities or our business arrangements with third parties could be subject to challenge
under  one  or  more  of  such  laws.  It  is  possible  that  governmental  authorities  will  conclude  that  our  business  practices  or  the  business
practices of the royalty agreement counterparties and licensees who generate our royalties may not comply with current or future statutes,
regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations or the operations of
the royalty agreement counterparties and licensees who generate our royalties are found to be in violation of any of these laws or any other
governmental  regulations,  we  or  the  royalty  agreement  counterparties  and  licensees  who  generate  our  may  be  subject  to  significant
criminal,  civil  and  administrative  sanctions,  including  monetary  penalties,  damages,  fines,  disgorgement,  individual  imprisonment  and
exclusion from participation in government-funded healthcare programs, such as Medicare and Medicaid, additional reporting requirements
and oversight if we or the royalty agreement counterparties and licensees who generate our royalties become subject to a corporate integrity
agreement  or  similar  agreement  to  resolve  allegations  of  non-compliance  with  these  laws,  reputational  harm,  and  we  or  marketers  of
products that generate our royalties may be required to curtail or restructure operations, any of which could adversely affect our ability to
operate our business and our results of operations. The risk of our being found in violation of these laws is increased by the fact that many
of  them  have  not  been  fully  interpreted  by  the  regulatory  authorities  or  the  courts,  and  their  provisions  are  open  to  a  variety  of
interpretations.  Any  action  against  us  for  violation  of  these  laws,  even  if  we  successfully  defend  against  it,  could  cause  us  to  incur
significant legal expenses and divert our management’s attention from the operation of our business. The shifting compliance environment
and the need

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to  build  and  maintain  robust  and  expandable  systems  to  comply  with  multiple  jurisdictions  with  different  compliance  and/or  reporting
requirements increases the possibility that a healthcare company may run afoul of one or more of the requirements.

As  we  or  our  potential  milestone  and  royalty  providers  do  more  business  internationally,  we  will  be  subject  to  additional  political,
economic and regulatory uncertainties.

We or our potential milestone and royalty providers may not be able to operate successfully in any foreign market. We believe that
because the pharmaceutical industry is global in nature, international activities will be a significant part of future business activities and
when and if we or our potential milestone and royalty providers are able to generate income, a substantial portion of that income will be
derived  from  product  sales  and  other  activities  outside  the  United  States.  Foreign  regulatory  agencies  often  establish  standards  different
from  those  in  the  United  States,  and  an  inability  to  obtain  foreign  regulatory  approvals  on  a  timely  basis  could  put  us  at  a  competitive
disadvantage or make it uneconomical to proceed with a product or product candidate’s development. International sales may be limited or
disrupted by many factors, including without limitation:

● imposition of government controls;

● export license requirements;

● political or economic instability;

● trade restrictions;

● changes in tariffs;

● restrictions on repatriating profits;

● exchange rate fluctuations; and

● withholding and other taxation.

General Risk Factors

Our share price may be volatile, and there may not be an active trading market for our common stock, Series A Preferred Stock or our
Series B Preferred Stock.

There can be no assurance that the market price of our common stock will not decline below its present market price. Additionally,
there may not be an active trading market for our common stock, Series A Preferred Stock or depositary shares representing interests in our
Series  B  Preferred  Stock.  The  market  prices  of  biotechnology  companies  have  been  and  are  likely  to  continue  to  be  highly  volatile.
Fluctuations  in  our  operating  results  and  general  market  conditions  for  biotechnology  stocks  could  have  a  significant  impact  on  the
volatility  of  our  stock  price  or  the  existence  of  an  active  trading  market  for  our  common  stock,  Series A  Preferred  Stock  or  depositary
shares representing interests in our Series B Preferred Stock. We have experienced significant volatility in the price of our common stock.
From January 1, 2022, through March 6, 2023, the share price of our common stock has ranged from a high of $32.09 to a low of $15.68.
From January 1, 2022, through March 6, 2023, the share price of our Series A Preferred Stock has ranged from a high of $27.09 to a low of
$22.14. From January 1, 2022, through March 6, 2023, the share price of our Series B Preferred Stock has ranged from a high of $26.81 to
a low of $21.75. Additionally, we have two significant holders of our common stock that could affect the liquidity of our stock and have a
significant negative impact on our stock price if the holders were to quickly sell their ownership positions.

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Our results of operations and liquidity needs could be materially negatively affected by market fluctuations or an economic downturn.

Our results of operations could be materially negatively affected by economic conditions generally, both in the United States and
elsewhere  around  the  world.  Concerns  over  inflation,  energy  costs,  geopolitical  issues,  the  availability  and  cost  of  credit,  and  the  U.S.
financial  markets  have  in  the  past  contributed  to,  and  may  continue  in  the  future  contribute  to,  increased  volatility  and  diminished
expectations for the economy and the markets. Domestic and international equity markets periodically experience heightened volatility and
turmoil. These events may have an adverse effect on us. In the event of a market downturn, our results of operations could be adversely
affected  by  those  factors  in  many  ways,  including  making  it  more  difficult  for  us  to  raise  funds  if  necessary,  and  our  stock  price  may
decline.

We have issued equity securities and may issue additional equity securities from time to time, that materially and adversely affect the
price  of  our  common  stock,  including  our  Series  X  preferred  stock,  Series  A  Preferred  Stock  and  depositary  shares  representing
interests in our Series B Preferred Stock.

We expect significant additional capital will be needed in the future to continue our planned operations. To the extent we raise
additional  capital  by  issuing  equity  securities,  our  stockholders  may  experience  substantial  dilution.  We  may  sell  common  stock,
convertible securities or other equity securities in one or more transactions at prices and in such a manner as we determine from time to
time, including pursuant to our 2018 Common Stock ATM Agreement, as amended, and 2021 Series B Preferred Stock ATM Agreement. If
we sell common stock, convertible securities or other equity securities in more than one transaction, investors may be materially diluted by
subsequent sales. These sales may also result in material dilution to our existing stockholders, and new investors could gain rights superior
to our existing stockholders. If we issue additional equity securities, the price of our existing securities may be materially and adversely
affected.

As  of  December  31,  2022,  there  were  5,003  shares  of  Series  X  preferred  stock  issued  and  outstanding.  Each  share  of  Series  X
preferred stock is convertible into 1,000 shares of registered common stock. The total number of shares of common stock issuable upon
conversion of all issued Series X preferred stock would be 5,003,000 shares. Each share is convertible at the option of the holder at any
time, provided that the holder will be prohibited from converting into common stock if, as a result of such conversion, the holder, together
with its affiliates, would beneficially own a number of shares above a conversion blocker, which was initially set at 19.99% of our total
common stock then issued and outstanding immediately following the conversion of such shares. A holder of Series X preferred shares may
elect to increase or decrease the conversion blocker above or below 19.99% on 61 days’ notice, provided the conversion blocker does not
exceed the limits under Nasdaq Marketplace Rule 5635(b), to the extent then applicable. If holders of our Series X convertible preferred
stock elect to convert their preferred shares into common stock such conversion would dilute our currently outstanding common stock both
in number and in earnings per share. BVF (and its affiliates), as current holders of all shares of our Series X preferred stock, would, if they
converted  all  such  shares  to  common  stock,  obtain  majority  voting  control  of  the  Company.  As  of  December  31,  2022,  BVF  owned
approximately  31.5%  of  our  total  outstanding  shares  of  common  stock,  and  if  all  of  the  Series  X  convertible  preferred  shares  were
converted, BVF would own 52.3% of our total outstanding shares of common stock. Additionally, as of December 31, 2022, we had issued
and outstanding 984,000 shares of Series A Preferred Stock and 1,600,000 depositary shares, each representing a 1/1000th fractional interest
in a share of our Series B Preferred Stock.

In addition, funding from collaboration partners and others has in the past and may in the future involve issuance by us of our
common  stock.  We  cannot  be  certain  how  the  purchase  price  of  such  shares,  the  relevant  market  price  or  premium,  if  any,  will  be
determined or when such determinations will be made.

Any  issuance  by  us  of  equity  securities,  whether  through  an  underwritten  public  offering,  an  at  the  market  offering,  a  private
placement, in connection with a collaboration or otherwise could result in dilution in the value of our issued and outstanding shares, and a
decrease in the trading price of our securities.

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We may sell additional equity or debt securities to fund our operations, which may result in dilution to our stockholders and impose
restrictions on our business.

In  order  to  raise  additional  funds  to  support  our  operations,  we  may  sell  additional  equity  or  convertible  debt  securities,  which
would result in dilution to our stockholders and/or debt securities which may impose restrictive covenants that would adversely impact our
business. The sale of additional equity or convertible debt securities could result in additional dilution or result in other rights or obligations
that adversely affect our stockholders. For example, holders of shares of our Series A Preferred Stock are entitled to receive, when and as
declared by our Board of Directors, out of funds legally available for the payment of dividends, cumulative cash dividends at the rate of
8.625%  of  the  $25.00  liquidation  preference  per  year  (equivalent  to  $2.15625  per  year).  Additionally,  holders  of  depositary  shares
representing interests in our Series B Preferred Stock are entitled to receive, when and as declared by our Board of Directors, out of funds
legally available for the payment of dividends, cumulative cash dividends at the rate of 8.375% of the $25,000 liquidation preference per
share of Series B Preferred Stock ($25.00 per depositary share) per year (equivalent to $2,093.75 per year per share or $2.09375 per year
per depositary share). The incurrence of indebtedness would result in increased fixed payment obligations and could also result in certain
restrictive  covenants,  such  as  limitations  on  our  ability  to  incur  additional  debt,  limitations  on  our  ability  to  acquire,  sell  or  license
intellectual property rights and other operating restrictions that could adversely impact our ability to conduct our business.

Our organizational documents contain provisions that may prevent transactions that could be beneficial to our stockholders and may
insulate our management from removal.

Our charter and by-laws:

● require certain procedures to be followed and time periods to be met for any stockholder to propose matters to be considered

at annual meetings of stockholders, including nominating directors for election at those meetings; and

● authorize our Board of Directors to issue up to 1,000,000 shares of preferred stock without stockholder approval and to set
the  rights,  preferences  and  other  designations,  including  voting  rights,  of  those  shares  as  the  Board  of  Directors  may
determine.

In addition, we are subject to the provisions of Section 203 of the Delaware General Corporation Law (the “DGCL”), that may
prohibit large stockholders, in particular those owning 15% or more of our outstanding common stock, from merging or combining with us.

These  provisions  of  our  organizational  documents  and  the  DGCL,  alone  or  in  combination  with  each  other,  may  discourage
transactions  involving  actual  or  potential  changes  of  control,  including  transactions  that  otherwise  could  involve  payment  of  a  premium
over  prevailing  market  prices  to  holders  of  common  stock,  could  limit  the  ability  of  stockholders  to  approve  transactions  that  they  may
deem to be in their best interests, and could make it considerably more difficult for a potential acquirer to replace management.

As a public company in the United States, we are subject to the Sarbanes-Oxley Act. We have determined our disclosure controls and
procedures and our internal control over financial reporting are effective. We can provide no assurance that we will, at all times, in the
future be able to report that our disclosure controls and internal controls over financial reporting are effective.

Companies that file reports with the SEC, including us, are subject to the requirements of Section 404 of the SOX. Section 404
requires management to establish and maintain a system of internal control over financial reporting, and annual reports on Form 10-K filed
under  the  Securities  Exchange Act  of  1934,  as  amended  (the  “Exchange Act”),  must  contain  a  report  from  management  assessing  the
effectiveness  of  our  internal  control  over  financial  reporting.  Ensuring  we  have  adequate  internal  financial  and  accounting  controls  and
procedures  in  place  to  produce  accurate  financial  statements  on  a  timely  basis  is  a  time-consuming  effort  that  needs  to  be  re-evaluated
frequently.  Failure  on  our  part  to  have  effective  internal  financial  and  accounting  controls  would  cause  our  financial  reporting  to  be
unreliable, could have a material

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adverse effect on our business, operating results, and financial condition, and could cause the trading price of our common stock to fall.

Our ability to use our NOL carry-forwards and certain other tax attributes to offset taxable income or taxes may be limited.  

Our net operating loss, or NOL, carryforwards could expire unused and/or be unavailable to offset future income tax liabilities.  As
of December 31, 2022, we had U.S. federal NOL carryforwards of $108.8 million, of which $13.6 million will begin to expire in 2036.
  Under  the  federal  income  tax  law,  federal  NOLs  incurred  in  taxable  years  beginning  after  December  31,  2017  may  be  carried  forward
indefinitely,  but  the  deductibility  of  such  federal  NOLs  is  limited  to  80%  of  current  year  taxable  income.  It  is  uncertain  if  and  to  what
extent various states will conform to the federal tax law. In addition, Section 382 of the U.S. Internal Revenue Code of 1986, as amended
(or, the Code), and corresponding provisions of state law, generally limit the ability of a corporation that undergoes an “ownership change”
to utilize its NOL carry-forwards and certain other tax attributes against any taxable income in taxable periods after the ownership change.
An “ownership change” is generally defined as a greater than 50% change, by value, in a corporation’s equity ownership over a three-year
period.

Based on an analysis under Section 382 of Code, we experienced an ownership change in February 2017, that significantly limits
the availability of our tax attributes to offset future income. To the extent that we do not utilize our carry forwards within the applicable
statutory carry-forward periods, either because of Section 382 limitations or the lack of sufficient taxable income, the carry-forwards will
also expire unused.

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 tax laws, statutes, rules, regulations, or ordinances could be enacted at any time. For instance, the recently enacted Inflation
Reduction Act imposes, among other rules, a 15% minimum tax on the book income of certain large corporations and a 1% excise tax on
certain  corporate  stock  repurchases.  Further,  existing  tax  laws,  statutes,  rules,  regulations,  or  ordinances  could  be  interpreted  differently,
changed, repealed, or modified at any time. Any such enactment, interpretation, change, repeal, or modification could adversely affect us,
possibly with retroactive effect. In particular, changes in corporate tax rates, the realization of our net deferred tax assets, the taxation of
foreign earnings, and the deductibility of expenses under the Tax Act, as amended by the CARES Act or any future tax reform legislation,
could  have  a  material  impact  on  the  value  of  our  deferred  tax  assets,  result  in  significant  one-time  charges,  and  increase  our  future  tax
expenses.

Stockholder and private lawsuits, and potential similar or related lawsuits, could result in substantial damages, divert management’s
time and attention from our business, and have a material adverse effect on our business, financial condition and results of operations.

Securities-related  class  action  and  stockholder  derivative  litigation  has  often  been  brought  against  companies,  including  many
biotechnology companies, which experience volatility in the market price of their securities. This risk is especially relevant for us because
biotechnology  and  biopharmaceutical  companies  often  experience  significant  stock  price  volatility  in  connection  with  their  product
development programs.

It  is  possible  that  suits  will  be  filed,  or  allegations  received  from  stockholders,  naming  us  and/or  our  officers  and  directors  as
defendants. These  potential  lawsuits  are  subject  to  inherent  uncertainties,  and  the  actual  defense  and  disposition  costs  will  depend  upon
many  unknown  factors. The  outcome  of  these  lawsuits  is  uncertain. We  could  be  forced  to  expend  significant  time  and  resources  in  the
defense of these suits, and we may not prevail. In addition, we may incur substantial legal fees and costs in connection with these lawsuits.
Although we carry insurance to protect us from such claims, our insurance may not provide adequate coverage. It is possible that we could,
in the future, incur judgments or enter into settlements of claims for monetary damages. A decision adverse to our interests on these actions
could result in the payment of substantial damages, or possibly fines, and could have a material adverse effect on our cash flow, results of
operations and financial position.

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Monitoring, initiating and defending against legal actions, including any currently pending litigation, are time-consuming for our
management, are likely to be expensive and may detract from our ability to fully focus our internal resources on our business activities. The
outcome of litigation is always uncertain, and in some cases could include judgments against us that require us to pay damages, enjoin us
from certain activities, or otherwise affect our legal or contractual rights, which could have a significant adverse effect on our business. In
addition, the inherent uncertainty of any future litigation could lead to increased volatility in our stock price and a decrease in the value of
an investment in our common stock.

Item 1B.    Unresolved Staff Comments

None.

Item 2.   Properties

We  currently  lease  space  in  one  building  that  houses  our  corporate  headquarters  in  Emeryville,  California.    The  lease  was
originally scheduled to expire in February 2023 and in January 2023, we extended the lease through July 2023. We believe our facilities are
adequate to meet our requirements for the near term and we are currently evaluating our future office space needs.

Item 3.   Legal Proceedings

From time to time, we are involved in litigation, arbitration or other proceedings relating to claims arising out of our operations.

We are not currently involved in any legal proceedings that we believe to be material. We may, however, be involved in material
legal  proceedings  in  the  future,  and  the  potential  impact  on  us  of  any  on-going  proceeding  could  change.  Such  matters  are  subject  to
significant uncertainties, and there can be no assurance that any legal proceedings in which we are or may become involved will not have a
material adverse effect on our business, results of operations, financial position or cash flows.

Item 4.   Mine Safety Disclosures

Not applicable.

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PART II

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

Market for Registrant’s Common Equity

Our  common  stock  trades  on  The  Nasdaq  Global  Market  tier  of  the  Nasdaq  Stock  Market  LLC  (“Nasdaq”)  under  the  symbol
“XOMA.” On March 6, 2023, there were 192 stockholders of record of our common stock, one of which was Cede & Co., a nominee for
Depository Trust Company (“DTC”). All of the shares of our common stock held by brokerage firms, banks and other financial institutions
as  nominees  for  beneficial  owners  are  deposited  into  participant  accounts  at  DTC  and  are  therefore  considered  to  be  held  of  record  by
Cede & Co. as one stockholder.

Dividend Policy

We have not paid dividends on our common stock. Holders of shares of our Series A Preferred Stock are entitled to receive, when
and as declared by our Board of Directors, out of funds legally available for the payment of dividends, cumulative cash dividends at the
rate of 8.625% of the $25.00 liquidation preference per year (equivalent to $2.15625 per year per share) per year. Holders of our Series B
Preferred Stock are entitled to receive, when and as declared by our Board of Directors, out of funds legally available for the payment of
dividends,  cumulative  cash  dividends  at  the  rate  of  8.375%  of  the  $25,000  liquidation  preference  per  year  of  Series  B  Preferred  Stock
($25.00 per depositary share) per year (equivalent to $2,093.75 per year per share or $2.09375 per year per depositary share). We do not
anticipate paying cash dividends on our common stock in the foreseeable future.

Recent Sales of Unregistered Securities

None.

Item 6.   Reserved

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

Overview

XOMA is a biotech royalty aggregator. We have a sizable portfolio of economic rights to future potential milestone and royalty
payments  associated  with  partnered  pre-commercial  therapeutic  candidates.  Our  portfolio  was  built  through  licensing  our  proprietary
products and platforms from our legacy discovery and development business, combined with the acquisition of rights to future milestones
and  royalties  that  we  have  made  since  our  royalty  aggregator  business  model  was  implemented  in  2017.  Our  drug  royalty  aggregator
business is focused on early to mid-stage clinical assets, primarily in Phase 1 and 2, with significant commercial sales potential that are
licensed to large-cap partners. We expect that most of our future revenue will be based on payments we may receive for milestones and
royalties related to these programs.

The generation of future revenues related to licenses, milestones, and royalties is dependent on the achievement of milestones or
product  sales  by  our  existing  licensees. Although  we  generated  net  income  of  $15.8  million  and  positive  cash  flows  from  operations  of
$22.7 million for the year ended December 31, 2021, we generated net loss of $17.1 million and negative cash flows from operations of
$12.9  million  for  the  year  ended  December  31,  2022  and  we  had  an  accumulated  deficit  of  $1.2  billion  as  of  December  31,  2022. The
payment we received from Novartis pursuant to our Anti-TGFβ Antibody License Agreement in 2021 was a one-time milestone payment
that does not represent recurring revenue.

Significant Developments

Purchase of IP

ObsEva Intellectual Property Acquisition Agreement

In  November  2022,  we  entered  into  the  ObsEva  IP  Acquisition  Agreement  pursuant  to  which  we  acquired  all  of  ObsEva’s
intellectual property (patents and know-how) and license agreement rights related to ebopiprant, an investigational compound previously
licensed by ObsEva from Merck KGaA. We also assumed ObsEva’s ongoing obligations under the Organon License Agreement and the
Merck  KGaA  License  Agreement.  Pursuant  to  the  Organon  License  Agreement,  XOMA  is  eligible  to  receive  up  to  $475.0  million  in
payments  for  ebopiprant  development,  commercialization  and  sales-based  milestones.    If  ebopiprant  is  successfully  commercialized,  we
will be entitled to receive royalties that range from low to mid-teens from Organon and will be required to make mid-single-digit royalty
payments to Merck KGaA.  We paid ObsEva a $15.0 million upfront payment at closing and will pay potential earn-out payments of up to
$97.5  million  for  development,  regulatory  and  sales-based  milestones,  representing  a  portion  of  what  we  will  receive  pursuant  to  the
Organon License Agreement.

Royalty and Commercial Payment Purchase Agreements

Commercial Payment Purchase Agreement with Affitech

In  January  2022,  Genentech,  a  member  of  the  Roche  group,  received  approval  from  the  FDA  to  commercialize  VABYSMO
(faricimab-svoa) for the treatment of wet, or neovascular, age-related macular degeneration and diabetic macular edema.  Pursuant to the
Affitech CPPA, we paid Affitech a $5.0 million regulatory approval milestone tied to these U.S. marketing approvals. Under the terms of
the Affitech CPPA, we are eligible to receive a 0.5% commercial payment stream on net sales of VABYSMO in each of certain regions
where it is approved, for a ten-year period following its first commercial sale in such region.

In September 2022, in connection with Roche receiving approval from the EC to commercialize VABYSMO for the treatment of
neovascular  or  ‘wet’  age-related  macular  degeneration  and  visual  impairment  due  to  diabetic  macular  edema,  we  made  a  $3.0  million
milestone payment to Affitech pursuant to the terms of the Affitech CPPA. As a result of

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the  EC  approvals,  we  will  be  eligible  to  receive  a  0.5%  commercial  payment  stream  for  ten  years  from  the  first  commercial  sale  of
VABYSMO in Europe.

VABYSMO  was  previously  approved  by  the  FDA  in  January  2022  and  by  Japan’s  Ministry  of  Health,  Labour,  and Welfare  in
March  2022.  In August  2022,  we  received  $0.5  million  from  Roche  representing  the  first  commercial  payment  for  sales  of VABYSMO
during the first six months of 2022, and in February 2023 we received $2.4 million for sales of VABYSMO during the second half of 2022.

Kuros Royalty Purchase Agreement

In July 2022, we received $2.5 million pursuant to our Kuros RPA. This payment represents 50% of a milestone earned by Kuros

upon the closing of Regeneron’s acquisition of Checkmate Pharmaceuticals on May 31, 2022.

License and Collaboration Agreements

Compugen

In November 2022, we earned a $0.8 million milestone payment under our license agreement with Compugen.

Novartis – VPM087

In  March  2023,  Novartis  notified  us  that  based  upon  a  strategic  review  of  the  development  program,  Novartis  will  not  initiate
further studies of gevokizumab in gastrointestinal cancers.  Novartis’ study to evaluate treatment with gevokizumab with standard of care
anti-cancer therapies in patients with metastatic colorectal, gastroesophageal, and renal cancers will continue to primary analysis, which is
anticipated later this year.

Novartis – Anti-CD40 Antibody

In  September  2021,  Novartis  announced  its  decision  to  discontinue  its  study  of  CFZ533  (iscalimab)  in  kidney  transplant.  In
September 2022, after an interim analysis of data, Novartis also decided to discontinue its study of CFZ533 in liver transplant. Novartis is
continuing iscalimab studies in other indications such as Sjögren’s Syndrome, Lupus Nephritis and Hidradenitis Suppurativa.

Sonnet Collaboration Agreement

In April  2022,  Sonnet  dosed  the  first  patient  in  its  Phase  1  clinical  trial  for  SON-1010,  and  we  earned  a  development-related

milestone payment of $0.5 million from Sonnet pursuant to our Sonnet Collaboration Agreement.

Rezolute – RZ358 Antibody

In  January  2022,  Rezolute  dosed  the  last  patient  in  its  Phase  2b  clinical  trial  for  RZ358,  we  earned  a  $2.0  million  milestone

payment pursuant to our Rezolute License Agreement.

Modification of Equity Awards

In November 2022, we entered into the November 2022 Letter Agreement with Thomas Burns. Pursuant to the November 2022
Letter Agreement, in the event Mr. Burns remains employed by us for a twelve-month period beginning on November 1, 2022, he will be
deemed  “retirement  eligible”  for  purposes  of  his  equity  awards  under  the  terms  of  his  equity  award  agreements. All  other  terms  of  his
amended and restated employment agreement remain the same. Conditioned on his execution of a release in favor of us, Mr. Burns will
also receive this benefit upon any involuntary termination for reasons other than cause. This modification resulted in an acceleration of the
expense  recognized  related  to  Mr.  Burns’  stock  options.  During  the  year  ended  December  31,  2022,  we  recognized  stock-based
compensation expense of $0.6 million related to the Mr. Burns’ option awards. As of December 31, 2022, there was $0.5 million total

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unrecognized compensation expense related to Mr. Burns’ stock options expected to be recognized through the earlier of the vesting date of
the option or October 31, 2023.

Employee Retention Bonus

In October 2022, we approved the Amended Retention Plan that amended the Retention Plan to provide that each of our current
employees, excluding the Chief Executive Officer (“CEO”), will be eligible to receive a cash retention bonus if employed through each of
two  periods:  (1)  the  three-month  anniversary  of  November  1,  2022  (the  “Initial  Period”)  and  (2)  the  nine-month  period  immediately
following the Initial Period. All other terms of the Amended Retention Plan remain consistent with the Retention Plan. As of December 31,
2022,  we  expect  to  pay  $0.8  million  in  2023  related  to  employee  retention  bonuses  under  the Amended  Retention  Plan,  of  which  $0.1
million  was  accrued  in  operating  expenses  in  the  consolidated  statement  of  operations  and  comprehensive  loss  during  the  year  ended
December 31, 2022.

James R. Neal’s Departure and Continuity Incentive

Effective December 31, 2022, James R. Neal retired as our Chief Executive Officer and, effective as of January 1, 2023, resigned
as a member of our Board and Chairman of the Board. Pursuant to Mr. Neal’s  Amended and Restated Employment Agreement, dated as of
December  15,  2021,  following  his  departure  date,  Mr.  Neal  is  entitled  to  a  cash  payment  of  $1.2  million,  which  will  be  made  in  equal
monthly installments starting in January 2023 through December 2023, less deductions and withholdings.  As of December 31, 2022, we
accrued the full amount of Mr. Neal’s continuity incentive of $1.2 million in operating expenses in the consolidated statement of operations
and comprehensive loss during the year ended December 31, 2022.

On December 30, 2022, the Board appointed Owen Hughes as our Executive Chairman of the Board and Interim Chief Executive
Officer (principal executive officer), effective as of January 1, 2023. Mr. Hughes will receive an annual base salary of $125,000 and will be
eligible to receive an annual discretionary cash bonus with a target amount equal to 55% of his annual base salary upon the achievement of
annual performance milestones to be established by the Board.

On December 30, 2022, the Board also appointed Bradley Sitko as our Chief Investment Officer, effective as of January 3, 2023.
Mr.  Sitko  will  receive  an  annual  base  salary  of  $500,000,  a  signing  bonus  of  $110,000  and  will  be  eligible  to  receive  an  annual
discretionary  cash  bonus  with  a  target  amount  equal  to  50%  of  his  annual  base  salary  upon  the  achievement  of  annual  performance
milestones to be established by the Board.

 Mr. Hughes and Mr. Sitko were also granted non-qualified stock options subject to the terms and conditions of the Company’s
Amended  and  Restated  2010  Long Term  Incentive  and  Stock Award  Plan. The  options  were  granted  outside  the  Plan  as  an  inducement
material  to  Mr.  Hughes  and  Mr.  Sitko  entering  into  employment  with  us  in  accordance  with  Nasdaq  Listing  Rule  5635(c)(4).    Further
details of the stock option grants can be found in our Form 8-K filed January 4, 2023.

Arbitration Proceeding

In June 2021, we initiated an arbitration proceeding against one of our licensees (the “Licensee”) with the American Arbitration
Association/International Centre for Dispute Resolution.  We seek damages, plus interest, and fees and costs of the arbitration (which fees
and costs are currently estimated to be in the mid-single-digit millions of U.S. dollars range).  In response, the Licensee seeks declarations
that the License Agreement, under our interpretation, is unlawful, void and unenforceable, and that the License Agreement has expired.  To
date, the Licensee has not filed any counterclaims against us. However, to the extent the Licensee is deemed to be the prevailing party, the
arbitrators, in their discretion, may require us to pay the Licensee’s fees and costs of the arbitration (currently estimated to be in the mid-
single-digit  millions  of  U.S.  dollars  range). A  hearing  before  a  panel  of  arbitrators  was  held  on  this  matter  in  November  2022,  and  the
parties have submitted post-hearing briefs.

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Critical Accounting Estimates

The  preparation  of  financial  statements  in  accordance  with  generally  accepted  accounting  principles,  or  GAAP,  requires  us  to
make  estimates,  assumptions  and  judgments  that  affect  the  reported  amounts  of  assets,  liabilities,  revenues  and  expenses,  and  related
disclosures  of  contingent  assets  and  liabilities.  We  evaluate  our  estimates  on  an  ongoing  basis.  We  base  our  estimates  on  historical
experience and on various other assumptions that we believe to be reasonable under the circumstances, the results of which form our basis
for making judgments about the carrying values of assets and liabilities and the reported amounts of revenues and expenses that are not
readily apparent from other sources. Actual results may differ from those estimates under different assumptions and conditions.

Critical  accounting  estimates  are  those  estimates  that  involve  a  significant  level  of  judgment  and/or  estimation  uncertainty  and
could have or are reasonably likely to have a material impact on our financial condition or results of operations. We believe the following
critical accounting policies and estimates describe the more significant judgments and estimates used in the preparation of our consolidated
financial statements.

Purchase of Rights to Future Milestones, Royalties and Commercial Payments

We have purchased rights to receive a portion of certain future developmental, regulatory and commercial sales milestones, and
royalties on sales of products currently in clinical development. We acquired such rights from various entities and recorded the amount paid
for these rights as long-term royalty receivables. We have accounted for the purchased rights as a financial asset in accordance with ASC
310.

Receivables

We  account  for  milestone  and  royalty  rights  related  to  developmental  pipeline  products  on  a  non-accrual  basis  using  the  cost
recovery  method.  Except  for  VABYSMO,  these  developmental  pipeline  products  are  non-commercialized,  non-approved  products  that
require FDA or other regulatory approval, and thus have uncertain cash flows. The related receivable balances are classified as noncurrent
since  no  payments  are  probable  to  be  received  in  the  near  term. VABYSMO  received  FDA  approval  in  January  2022,  was  approved  by
Japan’s Ministry of Health, Labour, and Welfare in March 2022, and was approved by the EU’s EC in September 2022 and we do not yet
have a foundation upon which to estimate receipts expected to be collected in the near term; therefore, they remain classified as noncurrent
until such time an estimate can be made. Under the cost recovery method, any milestone, royalty, or other payment received is recorded as
a  direct  reduction  of  the  recorded  receivable  balance.  When  the  recorded  receivable  balance  has  been  fully  collected,  any  additional
amounts collected will be recognized as revenue.

Contingent Payments

We may be obligated to make contingent payments related to certain product development and regulatory approval milestones and
sales-based milestones. If the contingent payments fall within the scope of ASC 815, the contingent payments are measured at fair value at
the inception of the arrangement, subject to remeasurement to fair value at the end of each reporting period. Any changes in the estimated
fair value are recorded in the consolidated statement of operations and comprehensive (loss) income.

Impairment Assessment

We  review  these  balances  for  impairment  on  a  quarterly  basis  using  updates  from  our  partners,  press  releases  and  public
information  on  clinical  trials.    If  we  determine  an  impairment  is  necessary,  the  impairment  recorded  will  be  based  on  an  estimate  of
discounted future cash flows, which will rely on assumptions including probability of technical success and discount rate.  Changes to these
assumptions could have a material impact on our financial statements.  No impairment has been recorded as of December 31, 2022.

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Stock-Based Compensation

Stock-based compensation expense for stock options and other stock awards is estimated at the grant date based on the award’s
fair  value-based  measurement.  The  valuation  of  stock-based  compensation  awards  is  determined  at  the  date  of  grant  using  the  Black-
Scholes Model. This model requires highly complex and subjective inputs, such as the expected term of the option and expected volatility.
These inputs are subjective and generally require significant analysis and judgment to develop. Our current estimate of volatility is based
on the historical volatility of our stock price. To the extent volatility in our stock price increases in the future, our estimates of the fair value
of options granted in the future could increase, thereby increasing stock-based compensation cost recognized in future periods. To establish
an estimate of expected term, we consider the vesting period and contractual period of the award and our historical experience of stock
option exercises, post-vesting cancellations and volatility. The risk-free rate is based on the yield available on United States Treasury zero-
coupon issues. Forfeitures are recognized as they occur.

We  review  our  valuation  assumptions  quarterly  and,  as  a  result,  we  likely  will  update  our  valuation  assumptions  used  to  value
stock-based  awards  granted  in  future  periods  utilizing  current  data.  In  the  future,  as  additional  empirical  evidence  regarding  these  input
estimates becomes available, we may change or refine our approach of deriving these input estimates. These changes could impact our fair
value-based  measurement  of  stock  options  granted  in  the  future.  Changes  in  the  fair  value-based  measurement  of  stock  awards  could
materially impact our operating results.

Results of Operations

Revenues

Total revenues for the years ended December 31, 2022 and 2021, were as follows (in thousands):

Revenue from contracts with customers
Revenue recognized under units-of-revenue method
Total revenues

Revenue from Contracts with Customers

Year Ended
December 31, 

2022
$  4,150
 1,877
$  6,027

2021
$  36,518
 1,642
$  38,160

Change
$  (32,368)
 235
$  (32,133)

Revenue  from  contracts  with  customers  includes  upfront  fees,  annual  license  fees  and  milestone  payments  related  to  the  out-
licensing of our legacy product candidates and technologies. The primary components of revenue from contracts with customers in 2022
were  due  to  milestones  earned  of  $2.0  million  pursuant  to  our  Rezolute  License  Agreement,  $0.8  million  pursuant  to  the  Takeda
Collaboration  Agreement,  $0.8  million  pursuant  to  our  license  agreement  with  Compugen  and  $0.5  million  pursuant  to  our  Sonnet
Collaboration Agreement. The primary components of revenue from contracts with customers in 2021 were due to milestones earned of
$35.0 million under our Anti-TGFβ Antibody License Agreement with Novartis, $0.5 million under our license agreement with Compugen
and $0.7 million under our license agreement with Janssen.

Revenue recognized under units-of-revenue method

Revenues  recognized  under  the  units-of-revenue  method  include  the  amortization  of  unearned  revenue  from  the  sale  of  royalty
interests to HCRP in 2016. The increase in 2022 compared with 2021 was due to increased sales of products underlying the agreements
with HCRP.

G&A Expenses

G&A expenses include salaries and related personnel costs, professional fees, and facilities costs. In 2022, G&A expenses were

$23.2 million compared with $20.5 million in 2021.

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The net increase of $2.7 million in 2022 as compared with 2021 was primarily due a $2.6 million increase in salaries and related
expenses including the $1.2 million Continuity Incentive accrued in connection with the departure of Mr. Neal, a $0.7 million increase in
salaries and wages due to increased headcount and general salary increases, $0.4 million related to bonus payments to Mr. Neal pursuant to
his amended employment agreement, and $0.1 million accrued in connection with the employee retention bonus. A $2.3 million increase in
consulting and legal costs also contributed to the overall increase. The increases in salaries and related expenses, consulting and legal costs
were partially offset by a $2.6 million reduction in stock-based compensation expense for stock options.

Other Income (Expense)

Interest Expense

The $0.5 million interest expense reported for the year ended December 31, 2021 was related to our SVB Loan that was repaid in
June 2021. There was no interest expense for the year ended December 31, 2022. We expect no interest expense in 2023 as we have no
outstanding loan balances; however if we elect to obtain new debt financing, our interest expense may increase.

Other Income (Expense), Net

The  following  table  shows  the  activity  in  other  income  (expense),  net  for  the  years  ended  December  31,  2022  and  2021  (in

thousands):

Other income (expense), net

Investment income
Change in fair value of equity securities
Other
Total other income (expense), net

Year Ended
December 31, 

2022

2021

Change

$

$

 694
 (439)
 40
 295

$

$

 35
 (919)
 5
 (879)

$

$

 659
 480
 35
 1,174

The  change  in  fair  value  of  equity  securities  is  due  to  the  change  in  market  price  of  equity  securities  we  own  in  shares  of
Rezolute’s common stock. Investment income increased $0.7 million compared with the same period in 2021 due to higher market interest
rates.

Provision for Income Taxes

We recorded a $15,000 income tax benefit and a $0.1 million income tax expense for the years ended December 31, 2022 and
2021, respectively. We continue to maintain a full valuation allowance against our remaining net deferred tax assets. We had a total of $5.9
million of gross unrecognized tax benefits, none of which would impact our effective tax rate to the extent that we continue to maintain a
full valuation allowance against our deferred tax assets. We do not expect our unrecognized tax benefits to change significantly over the
next twelve months.

Liquidity and Capital Resources

The following table summarizes our unrestricted cash, our working capital and our cash flow activities as of and for each of the

periods presented (in thousands):

Cash and cash equivalents
Working capital

December 31, 
2022
 57,826
 54,435

$
$

December 31,
2021
 93,328
 84,006

$
$

Change
$  (35,502)
$  (29,571)

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Net cash (used in) provided by operating activities
Net cash used in investing activities
Net cash (used in) provided by financing activities
Net (decrease) increase in cash, cash equivalents and restricted cash

Year Ended December 31, 

2022
$  (12,879)
 (20,221)
 (4,451)
$  (37,551)

2021
 22,678
 (26,500)
 12,835
 9,013

$

$

Change
$  (35,557)
 6,279
 (17,286)
$  (46,564)

Net cash used in operating activities for 2022 was primarily due to our operating expenses of $23.4 million, excluding non-cash
expenses of $4.4 million including stock-based compensation of $3.6 million, partially offset by a $2.0 million milestone payment received
from Rezolute, a $0.8 million milestone payment received from Takeda and a $0.8 million milestone payment received from Compugen.
Our  primary  source  of  cash  provided  by  operating  activities  in  2021  was  the  $35.0  million  milestone  payment  received  from  Novartis,
partially  offset  by  our  operating  expenses  of  $20.6  million  excluding  non-cash  expenses  including  stock-based  compensation  of  $6.2
million.

Net cash used in investing activities for the year ended December 31, 2022 of $20.2 million was primarily due to the $15.2 million
paid  for  the  IP  acquired  pursuant  to  the  ObsEva  IP  Acquisition  Agreement  in  November  2022  and  the  $5.0  million  and  $3.0  million
payments for regulatory milestones pursuant to the Affitech CPPA, partially offset by the $2.5 million milestone payment received from
Kuros in July 2022 and the $0.5 million commercial payment received from Roche in August 2022. Net cash used in investing activities for
the  year  ended  December  31,  2021,  of  $26.5  million  was  due  to  our  acquisitions  under  RPAs  and  a  CPPA,  including  a  $13.5  million
payment  pursuant  to  the  Viracta  RPA,  a  $7.0  million  payment  pursuant  to  the  Kuros  RPA  and  a  $6.0  million  payment  pursuant  to  the
Affitech CPPA.

Net cash used in financing activities for the year ended December 31, 2022, of $4.5 million was primarily due to the payment of
dividends on our Series A and Series B Preferred Stock of $5.5 million, partially offset by the receipt of net cash provided from the exercise
of stock options after related tax payments of $1.0 million. Net cash provided by financing activities for the year ended December 31, 2021
of $12.8 million was primarily due to the receipt of net cash proceeds of $37.1 million from our public offering of Series B Preferred Stock,
$1.1 million net cash provided from the exercise of stock options after related tax payments, partially offset by $4.3 million cash used in the
principal payments of debt, $17.1 million cash used to extinguish outstanding loans and $3.5 million payment of dividends on our Series A
Preferred Stock and Series B Preferred Stock.

Capital Resources

We have incurred significant operating losses since our inception and as of December 31, 2022, we had an accumulated deficit of
$1.2 billion.  As of December 31, 2022, we had $57.8 million in cash and cash equivalents. Based on our current cash balance and our
ability to control discretionary spending, such as royalty acquisitions, we have evaluated and concluded our financial condition is sufficient
to fund our planned operations, commitments, and contractual obligations for a period of at least one year following the filing date of this
report.

We  have  primarily  financed  our  operations  and  acquisitions  through  the  issuance  of  our  common  stock,  Series A  and  Series  B
Preferred Stock, and amounts received as milestone payments under our license agreements.  The generation of future revenues related to
licenses,  milestones,  and  royalties  is  dependent  on  the  achievement  of  milestones  or  product  sales  by  our  existing  licensees.  Milestone
payments earned in 2021 and 2022 are not indicative of anticipated milestones in future periods. We may seek additional capital through
use  of  our  2018  Common  Stock ATM Agreement  or  2021  Series  B  Preferred  Stock ATM Agreement  (see  Note  11  of  the  Consolidated
Financial Statements), or through other public or private debt or equity transactions. Our ability to raise additional capital in the equity and
debt markets, should we choose to do so, is dependent on a number of factors, including, but not limited to, the market demand for our
common and preferred stock, which are subject to a number of development and business risks and uncertainties, our creditworthiness and
the uncertainty that we would be able to raise such additional capital at a price or on terms that are favorable to us.  If we are unable to raise
additional funds when we need them, our business and operations may be adversely affected.

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Material Cash Requirements

Our material cash requirements in the short and long term consist of the following expenditures:

Operating expenditures: Our primary uses of cash and operating expenses relate to employee and related costs, consultants to
support our administrative and business development efforts, legal and accounting services, insurance, investor relations and IT services.
Our planned spending includes costs to satisfy the Continuity Incentive related to the departure of Mr. Neal as CEO in December 2022 and
increased personnel-related costs starting in 2023 due to the appointment of our new Executive Chairman and Chief Investment Officer.  

In response to our prior CEO’s intention to retire as announced in December 2021, we implemented a Retention Plan to encourage
our employees to remain with the Company through and beyond the new CEO transition period. Our Retention Plan includes a cash “stay”
bonus, effective November 1, 2022, as well as a policy defining benefits upon any involuntary termination for reasons other than cause,
which includes minimum severance, COBRA benefits, outplacement services and certain modifications to option awards. We expect our
operating expenses to increase as a result of this Retention Plan.

To support our royalty aggregator business model, we engage third parties to assist in our evaluation of potential acquisitions of
milestone and royalty streams. Additional operating expenses, including consulting and legal costs, may increase in 2023 in response to an
anticipated increase in the volume of acquisition targets evaluated or completed.

Our amended headquarters lease expires in July 2023, and we are currently evaluating our office space needs, however, due to our
small staff and minimal operating space requirements, we do not expect to incur material incremental costs associated with our current or
future building leases.  

RPAs,  CPPAs  and  IP  Acquisitions:  A  significant  component  of  our  business  model  is  to  acquire  rights  to  potential  future

milestone and royalty streams.  We expect to continue deploying capital toward these acquisitions in the near and long term.  

We also have potential contingent consideration of $0.1 million recorded on our consolidated balance sheets as of December 31,
2022, for development milestones due under our agreement with Bioasis. We paid Affitech a total of $8.0 million in 2022 for milestones
tied  to  the  achievement  of    regulatory  approvals. We  have  evaluated  and  concluded  our  existing  capital  resources  are  adequate  to  meet
those needs.

We also have potential sales-based milestones that may become due under our agreements with Aronora, Kuros and Affitech as
well as non-sales-based milestones, sales-based milestones and sales-based royalty payments that may become due under our agreement
with ObsEva. All of these milestones and royalty payments represent a portion of the funds we may receive in the future pursuant to these
agreements, and therefore will be fully funded by the related royalty or commercial payment receipts.

Collaborative  Agreements,  Royalties  and  Milestone  Payments:  We  have  committed  to  make  potential  future  milestone
payments and legal fees to third parties as part of licensing and development programs. Payments under these agreements become due and
payable  only  upon  the  achievement  of  certain  developmental,  regulatory  and  commercial  milestones  by  our  licensees.  Because  it  is
uncertain  if  and  when  these  milestones  will  be  achieved,  such  contingencies,  aggregating  up  to  $6.3  million  (assuming  one  product  per
contract meets all milestone events) have not been recorded on our consolidated balance sheet as of December 31, 2022. We are unable to
determine precisely when and if our payment obligations under the agreements will become due as these obligations are based on milestone
events, the achievement of which is subject to a significant number of risks and uncertainties.  All payments due will be funded by a portion
of the related milestone or royalty revenue we receive or will be reimbursed by our licensees.

Dividends:  Holders  of  our  Series A  Preferred  Stock  are  entitled  to  receive,  when  and  as  declared  by  our  Board  of  Directors,
cumulative cash dividends at the rate of 8.625% of the $25.00 liquidation preference per year (equivalent to $2.15625 per share of Series A
Preferred Stock per year). Holders of Series B Depositary Shares are entitled to receive, when and as declared by our Board of Directors,
cumulative cash dividends at the rate of 8.375% of the $25,000 liquidation

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preference per share of Series B Preferred Stock ($25.00 per depositary share) per year, which is equivalent to $2,093.75 per year per share
of Series B Preferred Stock ($2.09375 per year per depositary share).  Dividends on the Series A and Series B Preferred Stock are payable
in arrears on or about the 15th day of January, April, July and October of each year.  Since original issuance, all dividends have been paid
as scheduled.  We expect to continue making these dividend payments as scheduled using our existing capital resources.

Recent Accounting Pronouncements

See Note 2 to the Consolidated Financial Statements for information regarding new accounting pronouncements.

Item 7A.       Quantitative and Qualitative Disclosures about Market Risk

We  are  a  smaller  reporting  company  as  defined  by  Rule  12b-2  of  the  Securities  Exchange  Act  of  1934,  as  amended,  or  the

Exchange Act, and are not required to provide the information required under this item.

Item 8.   Financial Statements and Supplementary Data

The  following  consolidated  financial  statements  of  the  registrant,  related  notes  and  report  of  independent  registered  public

accounting firm are set forth beginning on page F-1 of this report.

Report of Independent Registered Public Accounting Firm (PCAOB ID No. 34)
Consolidated Balance Sheets
Consolidated Statements of Operations and Comprehensive (Loss) Income
Consolidated Statements of Stockholders’ Equity
Consolidated Statements of Cash Flows
Notes to the Consolidated Financial Statements

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

F-1
F-3
F-4
F-5
F-6
F-7

Not applicable.

Item 9A.       Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Under  the  supervision  and  with  the  participation  of  our  management,  including  our  Executive  Chairman  and  our  Senior  Vice
President,  Finance  and  Chief  Financial  Officer,  we  conducted  an  evaluation  of  our  disclosure  controls  and  procedures,  as  such  term  is
defined under Rule 13a-15 promulgated under the Securities Exchange Act of 1934, as amended, as of the end of the period covered by this
report. Our disclosure controls and procedures are intended to ensure that the information we are required to disclose in the reports that we
file  or  submit  under  the  Securities  Exchange Act  of  1934  is  (i)  recorded,  processed,  summarized  and  reported  within  the  time  periods
specified  in  the  Securities  and  Exchange  Commission’s  rules  and  forms  and  (ii)  accumulated  and  communicated  to  our  management,
including the Executive Chairman and Senior Vice President, Finance and Chief Financial Officer, as the principal executive and financial
officers, respectively, to allow timely decisions regarding required disclosures. Based on this evaluation, our Executive Chairman and our
Senior Vice President, Finance and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of the
end of the period covered by this report.

Management’s Report on Internal Control over Financial Reporting

Management, including our Executive Chairman and Interim Chief Executive Officer (principal executive officer) and our Senior
Vice President, Finance and Chief Financial Officer, is responsible for establishing and maintaining adequate internal control over financial
reporting  (as  such  term  is  defined  in  Exchange Act  Rules  13a-15(f)).  The  Company’s  internal  control  system  was  designed  to  provide
reasonable assurance to the Company’s management and

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board  of  directors  regarding  the  preparation  and  fair  presentation  of  published  financial  statements  in  accordance  with  accounting
principles generally accepted in the United States.

Management assessed the effectiveness of our internal control over financial reporting as of December 31, 2022. In making this
assessment, management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”)
in Internal Control—Integrated Framework (2013 Framework). Based on our assessment we believe that, as of December 31, 2022, our
internal control over financial reporting is effective based on those criteria.

This Annual Report does not include an attestation report by our registered public accounting firm regarding internal control over
financial reporting. Management's report is not subject to attestation by our registered public accounting firm under Section 404(b) of the
Sarbanes-Oxley Act pursuant to the rules established by the Securities and Exchange Commission, which permit us to provide only our
management report in this Annual Report.

Changes in Internal Control over Financial Reporting

There have been no changes in our internal controls over financial reporting as defined in Rule 13a-15(f) under the Exchange Act
during our most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal controls over
financial reporting.

Item 9B.       Other Information

Not applicable.

Item 9C.       Disclosure Regarding Foreign Jurisdiction that Prevents Inspections

Not applicable.

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Item 10. Directors, Executive Officers, Corporate Governance

PART III

Information  required  by  this  Item  will  be  included  in  the  Company’s  proxy  statement  for  the  2023  Annual  Meeting  of
Stockholders (“2023 Proxy Statement”), under the sections labeled “Proposal 1—Election of Directors,” “Information about our Executive
Officers” and “Delinquent Section 16(a) Reports” and is incorporated by reference. The 2023 Proxy Statement will be filed with the SEC
within 120 days after the end of the fiscal year to which this report relates.

Code of Ethics

The  Company’s  Code  of  Ethics  applies  to  all  employees,  officers  and  directors  including  the  Executive  Chairman  and  Interim
Chief Executive Officer (principal executive officer) and the Senior Vice President, Finance and Chief Financial Officer (principal financial
and principal accounting officer) and is posted on the Company’s website at https://investors.xoma.com/corporate-governance. We intend
to satisfy the applicable disclosure requirements regarding amendments to, or waivers from, provisions of our Code of Ethics by posting
such information on our website.

Item 11. Executive Compensation

Information  required  by  this  Item  will  be  included  in  the  sections  labeled  “Compensation  of  Executive  Officers,”  “Summary
Compensation Table,” “Outstanding Equity Awards as of December 31, 2022,” and “Compensation of Directors” appearing in our 2023
Proxy Statement and is incorporated by reference.

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

Information  required  by  this  Item  will  be  included  in  the  sections  labeled  “Common  Stock  of  Certain  Beneficial  Owners  and

Management” and “Equity Compensation Plan Information” appearing in our 2023 Proxy Statement and is incorporated by reference.

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

Information required by this Item will be included in the section labeled “Transactions with Related Persons” appearing in our

2023 Proxy Statement and is incorporated by reference.

Item 14. Principal Accountant Fees and Services

Information required by this Item will be included in the section labeled “Proposal 3 – Ratification of Appointment of Independent

Registered Public Accounting Firm” appearing in our 2023 Proxy Statement and is incorporated by reference.

59

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PART IV

Item 15. Exhibits and Financial Statement Schedules

(a) The following documents are included as part of this Annual Report on Form 10-K:

(1) Financial Statements:

All financial statements of the registrant referred to in Item 8 of this Report on Form 10-K.

(2) Financial Statement Schedules:

All  financial  statements  schedules  have  been  omitted  because  the  required  information  is  included  in  the  consolidated
financial statements or the notes thereto or is not applicable or required.

(3) Exhibits:

Exhibit
Number

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

Certificate of Incorporation of XOMA Corporation

8-K12G3

000-14710

Certificate of Amendment of Certificate of Incorporation
of XOMA Corporation

8-K

000-14710

3.1

3.1

01/03/2012

05/31/2012

Certificate of Amendment of Amended Certificate of
Incorporation of XOMA Corporation

8-K

000-14710

3.1

05/28/2014

Certificate of Amendment to the Amended Certificate of
Incorporation of XOMA Corporation

8-K

000-14710

3.1

10/18/2016

Certificate of Designation of Preferences, Rights and
Limitations of Series X Convertible Preferred Stock

8-K

000-14710

3.1

02/16/2017

Certificate of Designation of 8.625% Series A
Cumulative Perpetual Preferred Stock

Certificate of Designation of 8.375% Series B
Cumulative Perpetual Preferred Stock

8-K

000-14710

3.1

12/11/2020

8-K

001-39801

3.1

04/08/2021

Certificate of Correction of the Certificate of Designation
of 8.375% Series B Cumulative Perpetual Preferred Stock

10-Q

001-39801

3.8

08/05/2021

Certificate of Amendment to the Certificate of
Designation of 8.375% Series B Cumulative Perpetual
Preferred Stock of XOMA Corporation

8-K

001-39801

3.1

08/05/2021

3.10

By-laws of XOMA Corporation

8-K12G3

000-14710

3.2

01/03/2012

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Exhibit
Number

4.1

4.2

4.3

4.4

4.5

4.6+

10.1*

10.2*

10.3*

10.4*

10.5*

10.6*

10.7*

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

Reference is made to Exhibits 3.1, 3.2, 3.3, 3.4, 3.5, 3.6,
3.7, 3.8, 3.9 and 3.10

Specimen of Common Stock Certificate

Deposit Agreement, dated effective April 9, 2021, by and
among XOMA Corporation, American Stock Transfer &
Trust Company, LLC, as depositary, and the holders of
the depositary receipts issued thereunder

8-K

8-K

000-14710

001-39801

Form of Warrants (May 2018 Warrants)

10-Q

000-14710

Form of Warrants (March 2019 Warrants)

10-Q

000-14710

Description of Registrant’s Securities

4.1

4.1

4.6

4.7

01/03/2012

04/08/2021

08/07/2018

05/06/2019

Amended and Restated 2010 Long Term Incentive and
Stock Award Plan

DEF 14A

001-39801

Appendix   
A

04/07/2022

Form of Stock Option Agreement for Amended and
Restated 2010 Long Term Incentive and Stock Award
Plan

10-K

000-14710

10.6A

03/14/2012

2016 Non-Equity Incentive Compensation Plan

10-Q

000-14710

Amended 2015 Employee Share Purchase Plan

Form of Subscription Agreement and Authorization of
Deduction under the 2015 Employee Stock Purchase Plan

8-K

S-8

000-14710

333-204367

10.1

10.2

99.2

05/04/2016

05/24/2017

05/21/2015

Amended and Restated Employment Agreement, dated
December 15, 2021, between XOMA Corporation and
James R. Neal

Amended and Restated Change of Control Severance
Agreement, dated August 7, 2017, to the Change of
Control Severance Agreement, dated January 3, 2011,
between XOMA Corporation and James R. Neal

10-K

001-39801

10.26

3/8/2022

10-Q

000-14710

10.9

11/06/2017

10.8*

Officer Employment Agreement, dated August 7, 2017,
between XOMA Corporation and Thomas Burns

10-Q

000-14710

10.8

11/06/2017

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Exhibit
Number

10.9#*

10.10+#*

10.11*

10.12*

10.13#*

10.14+#*

10.15+*

10.16+*

10.17*

10.18*

10.19*

10.20*

10.21#

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

Letter Amendment to Officer Employment Agreement
dated August 7, 2017, between XOMA Corporation and
Thomas Burns

Letter Amendment to Officer Employment Agreement
dated November 1, 2022, between XOMA Corporation
and Thomas Burns

Amended and Restated Change of Control Severance
Agreement, dated August 7, 2017, to the Change of
Control Severance Agreement, dated October 28, 2015,
between XOMA Corporation and Thomas Burns

Form of Amended and Restated Indemnification
Agreement for Directors and Officers

10-Q

001-39801

10.2

05/05/2022

10-Q

000-14710

10.10

11/06/2017

10-K

001-39801

10.56

03/10/2021

The Retention and Severance Plan dated, March 31, 2022

10-Q

001-39801

10.1

05/05/2022

The Amended Retention and Severance Plan dated,
October 25, 2022

Officer Employment Agreement, dated January 3, 2023,
between XOMA Corporation and Owen Hughes

Officer Employment Agreement, dated January 3, 2023,
between XOMA Corporation and Bradley Sitko

Inducement Stock Option Agreement, by and between
XOMA Corporation and Owen Hughes

Inducement Stock Option Agreement, by and between
XOMA Corporation and Owen Hughes

Inducement Stock Option Agreement, by and between
XOMA Corporation and Bradley Sitko

Inducement Stock Option Agreement, by and between
XOMA Corporation and Bradley Sitko

Non-Exclusive License Agreement, dated November 30,
2001, between XOMA Ireland Limited ("XOMA") Sesen
Bio, Inc. and (formerly Viventia Biotech Inc.)

62

S-8

333-269459

99.2

01/30/2023

S-8

333-269459

99.3

01/30/2023

S-8

333-269459

99.4

01/30/2023

S-8

333-269459

99.5

01/30/2023

10-K

001-39801

10.57

03/10/2021

    
    
    
    
Table of Contents

Exhibit
Number

10.22

10.23†

10.24†

10.25†

10.26†

10.27†

10.28†

10.29†

10.30#

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

10-K

001-39801

10.58

03/10/2021

10-Q/A

000-14710

10.43

12/04/2002

10-K

000-14710

10.46

03/08/2007

10-Q

000-14710

10.48

05/10/2007

10-K

000-14710

10.31B

03/11/2009

10-Q/A

000-14710

10.35

03/05/2010

10-K

000-14710

10.24C

03/11/2009

10-K

000-14710

10.25B

03/14/2012

10-Q

000-14710

10.2

11/05/2020

Amendment No. 1, dated July 24, 2020, to the Non-
Exclusive License Agreement, dated November 30, 2001,
between XOMA Ireland Limited ("XOMA") and Sesen
Bio, Inc.

License Agreement by and between XOMA Ireland
Limited and MorphoSys AG, dated as of February 1,
2002

Collaboration Agreement, dated as of November 1, 2006,
between Takeda Pharmaceutical Company Limited and
XOMA (US) LLC

First Amendment to Collaboration Agreement, effective
as of February 28, 2007, between Takeda Pharmaceutical
Company Limited and XOMA (US) LLC

Second Amendment to Collaboration Agreement,
effective as of February 9, 2009, among Takeda
Pharmaceutical Company Limited and XOMA (US) LLC

Discovery Collaboration Agreement dated September 9,
2009, by and between XOMA Development Corporation
and Arana Therapeutics Limited

Amended and Restated Research, Development and
Commercialization Agreement, executed November 7,
2008, by and between Novartis Vaccines and Diagnostics,
Inc. (formerly Chiron Corporation) and XOMA (US)
LLC

Amendment No. 1 to Amended and Restated Research,
Development and Commercialization Agreement,
effective as of April 30, 2010, by and between Novartis
Vaccines and Diagnostics, Inc. (formerly Chiron
Corporation) and XOMA (US) LLC

Amendment to Amended and Restated Research,
Development and Commercialization Agreement,
between the Company and Novartis Vaccine and
Diagnostics, Inc., dated September 30, 2015

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Exhibit
Number

10.31

10.32#

10.33#

10.34#

10.35†

10.36†

10.37†

10.38

10.39#

10.40#

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

Letter Agreement, dated June 19, 2015, by and between
XOMA (US) LLC and Novartis Vaccines and
Diagnostics, Inc.

License Agreement between the Company and Novartis
International Pharmaceutical Ltd., dated September 30,
2015

IL-1b Target License Agreement, dated August 24, 2017,
by and between XOMA Corporation and Novartis
Pharma AG

License Agreement, dated August 24, 2017, by and
between XOMA Corporation and Novartis Pharma AG

License Agreement, dated December 6, 2017, between
XOMA (US) LLC and Rezolute, Inc. (formerly
AntriaBio)

Amendment No. 1, dated March 30, 2018, to the License
Agreement, dated December 6, 2017, between XOMA
(US) LLC and Rezolute, Inc. (formerly AntriaBio, Inc.)

Amendment No. 2, dated January 7, 2019, to the License
Agreement, dated December 6, 2017, between XOMA
(US) LLC and Rezolute, Inc. (formerly AntriaBio)

Asset Purchase Agreement, dated November 4, 2015,
between XOMA Corporation and Ology Bioservices Inc.
(formerly Nanotherapeutics Inc., now a wholly owned
subsidiary of National Resilience, Inc.)

License Agreement, dated March 23, 2016, between
XOMA Corporation and Ology Bioservices Inc.
(formerly Nanotherapeutics Inc., now a wholly owned
subsidiary of National Resilience, Inc.)

Amendment and Restatement, dated February 2, 2017, to
the Asset Purchase Agreement, dated November 4, 2015,
and License Agreement, dated March 23, 2016, between
XOMA Corporation and Ology Bioservices Inc.
(formerly Nanotherapeutics

64

10-Q

000-14710

10.1

08/10/2015

10-Q

000-14710

10.1

11/05/2020

10-Q

001-39801

10.1

11/03/2022

10-Q

001-39801

10.2

11/03/2022

10-K

000-14710

10.66

03/07/2018

10-Q

000-14710

10.1

05/09/2018

10-K

000-14710

10.71

03/07/2019

10-Q

000-14710

10.4

11/06/2017

10-Q

001-39801

10.3

11/03/2022

10-Q

001-39801

10.4

11/03/2022

    
    
    
    
Table of Contents

Exhibit
Number

10.41

10.42

10.43

10.44

10.45

10.46

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

Inc., now a wholly owned subsidiary of National
Resilience, Inc.)

Protective Rights Agreement dated December 21, 2016
by and between XOMA (US) LLC and HealthCare
Royalty Partners II, L.P. relating to the Royalty Interest
Acquisition Agreement dated December 20, 2016, by and
between XOMA Corporation and HealthCare Royalty
Partners II, L.P. and the Amended and Restated License
Agreement, dated effective as of October 27, 2006,
between XOMA (US) LLC and DYAX, Corp.

Protective Rights Agreements dated December 21, 2016
by and between XOMA (US) LLC and HealthCare
Royalty Partners II, L.P. relating to the Royalty Interest
Acquisition Agreement dated December 20, 2016, by and
between XOMA Corporation and HealthCare Royalty
Partners II, L.P. and the License Agreement, dated
effective as of August 18, 2005, between XOMA (US)
LLC and Wyeth Pharmaceuticals

Royalty Interest Acquisition Agreement dated December
20, 2016, by and between XOMA Corporation and
HealthCare Royalty Partners II, L.P., relating to the
Amended and Restated License Agreement, dated
effective as of October 27, 2006, between XOMA (US)
LLC and DYAX, Corp.

Royalty Interest Acquisition Agreement dated December
20, 2016, by and between XOMA Corporation and
HealthCare Royalty Partners II, L.P., relating to the
License Agreement, dated effective as of August 18,
2005, between XOMA (US) LLC and Wyeth
Pharmaceuticals

Amendment of Section 6.10(a) and (b), dated March 8,
2017, to Royalty Interest Acquisition Agreements dated
December 20, 2016, by and between XOMA Corporation
and HealthCare Royalty Partners II, L.P.

Common Stock Sales Agreement, dated December 18,
2018, by and between XOMA Corporation and H.C.
Wainwright & Co., LLC

65

10-K

000-14710

10.60

03/16/2017

10-K

000-14710

10.61

03/16/2017

10-K

000-14710

10.62

03/16/2017

10-K

000-14710

10.63

03/16/2017

10-K

000-14710

10.64

03/16/2017

8-K

000-14710

10.1

12/18/2018

    
    
    
    
Table of Contents

Exhibit
Number

10.47

10.48#

10.49†

10.50#

10.51#

10.52#

10.53#

10.54#

10.55#

10.56+#

10.57+#

10.58+#

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

Amendment No. 1, dated March 10, 2021, to the
Common Stock Sales Agreement, dated December 18,
2018, by and between XOMA Corporation and H.C.
Wainwright & Co., LLC

At Market Issuance Sales Agreement, dated August 5,
2021, by and between XOMA Corporation and B. Riley
Securities, Inc.

Royalty Purchase Agreement dated September 20, 2018,
between XOMA Corporation and Agenus Inc.

Royalty Purchase Agreement dated April 7, 2019,
between XOMA (US) LLC and Aronora, Inc.

10-K

001-39801

10.59

03/10/2021

8-K

001-39801

10.1

08/05/2021

10-Q

000-14710

10.9

11/07/2018

10-Q

000-14710

10.1

08/06/2019

Royalty Purchase Agreement dated September 26, 2019,
between XOMA (US) LLC and Palobiofarma, S.L

10-Q

000-14710

10.1

11/05/2019

Royalty Purchase Agreement dated March 22, 2021
between XOMA (US) LLC and Viracta Therapeutics, Inc.

10-Q

001-39801

10.1

05/06/2021

10-Q

001-39801

10.2

11/04/2021

10-Q

001-39801

10.1

08/05/2021

10-K

001-39801

10.48

03/08/2021

Royalty Purchase Agreement, dated July 14, 2021, by and
among XOMA (US) LLC and Kuros Royalty Fund (US)
LLC

Settlement and Release Agreement, dated April 15, 2021,
by and among XOMA (US) LLC and Affimed N.V.,
Affimed GmbH Affimed

Commercial Payment Purchase Agreement, dated
October 6, 2021, by and among XOMA (US) LLC and
Affitech Research AS

Intellectual Property Acquisition Agreement, dated
November 21, 2022 between XOMA Corporation and
ObsEva, SA

License Agreement, dated July 26, 2021, between
ObsEva, SA and Organon International GmbH

License Agreement, dated June 10, 2015, between
ObsEva, SA and Ares Trading S.A.

21.1+

Subsidiaries of the Company

66

    
    
    
    
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Exhibit
Number

23.1+

24.1+

31.1+

31.2+

32.1+(1)

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

Consent of Deloitte & Touche LLP, Independent
Registered Public Accounting Firm

Power of Attorney (included on the signature pages
hereto)

Certification of Executive Chairman, as required by Rule
13a-14(a) or Rule 15d-14(a)

Certification of Chief Financial Officer, as required by
Rule 13a 14(a) or Rule 15d 14(a)

Certification of Executive Chairman and Chief Financial
Officer, as required by Rule 13a-14(b) or Rule 15d-14(b)
and Section 1350 of Chapter 63 of Title 18 of the United
States Code (18 U.S.C. §1350)

101.INS+

Inline XBRL Instance Document

101.SCH+

Inline XBRL Taxonomy Extension Schema Document

101.CAL+

Inline XBRL Taxonomy Extension Calculation Linkbase
Document

101.DEF+

Inline XBRL Taxonomy Extension Definition Linkbase
Document

101.LAB+

Inline XBRL Taxonomy Extension Labels 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)

†     Confidential treatment has been granted with respect to certain portions of this exhibit. This exhibit omits the information subject to

this confidentiality request. Omitted portions have been filed separately with the SEC.

*     Indicates a management contract or compensation plan or arrangement.
+      Filed herewith.
#     Portions of this exhibit have been omitted as the Registrant has determined that (i) the omitted information is not material and (ii) the

omitted material is of the type that the Registrant treats as private or confidential.

(1)    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  Registrant  under  the  Securities Act  of  1933,  as  amended,  or  the
Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-K), irrespective of any general
incorporation language contained in such filing.

67

    
    
    
    
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The exhibits listed in the accompanying index to exhibits are filed or incorporated by reference as part of this Annual Report on

Form 10-K.

Item 16. Form 10-K Summary

None.

68

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Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this

report to be signed on its behalf by the undersigned, thereunto duly authorized, on this 9th day of March 2023.

SIGNATURES

XOMA Corporation

By:

/s/ OWEN HUGHES
Owen Hughes
Executive Chairman of the Board of Directors and Interim
Chief Executive Officer

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Owen
Hughes and Thomas Burns, and each of them, as his or her true and lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution  for  him  or  her  and  in  his  or  her  name,  place,  and  stead,  in  any  and  all  capacities,  to  sign  any  and  all  amendments  to  this
Annual  Report  on  Form  10-K,  and  to  file  the  same,  with  exhibits  thereto  and  other  documents  in  connection  therewith,  with  the  SEC,
granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done therewith, as fully to all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and any of them 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, this report has been signed below by the following persons

on behalf of the registrant and in the capacities and on the dates indicated.

Signature

Title

Date

/s/ Owen Hughes
(Owen Hughes)

Executive Chairman of the Board of Directors and Interim Chief Executive
Officer (Principal Executive Officer)

/s/ Thomas Burns
(Thomas Burns)

Senior Vice President, Finance and Chief Financial Officer
(Principal Financial and Principal Accounting Officer)

/s/ Heather L. Franklin
(Heather L. Franklin)

/s/ Natasha Hernday
(Natasha Hernday)

/s/ Barbara Kosacz
(Barbara Kosacz)

/s/ Joseph M. Limber
(Joseph M. Limber)

/s/ Matthew Perry
(Matthew Perry)

/s/ W. Denman Van Ness
(W. Denman Van Ness)

/s/ Jack L. Wyszomierski
(Jack L. Wyszomierski)

Director

Director

Director

Director

Director

Director

Director

69

March 9, 2023

March 9, 2023

March 9, 2023

March 9, 2023

March 9, 2023

March 9, 2023

March 9, 2023

March 9, 2023

March 9, 2023

    
    
Table of Contents

Index to Consolidated Financial Statements

Report of Independent Registered Public Accounting Firm (PCAOB ID No. 34)
Consolidated Balance Sheets
Consolidated Statements of Operations and Comprehensive (Loss) Income
Consolidated Statements of Stockholders’ Equity
Consolidated Statements of Cash Flows
Notes to the Consolidated Financial Statements

70

F-1
F-3
F-4
F-5
F-6
F-7

    
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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Stockholders and the Board of Directors of XOMA Corporation

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of XOMA Corporation and subsidiaries (the "Company") as of
December 31, 2022 and 2021, the related consolidated statements of operations and comprehensive (loss) income, stockholders' equity, and
cash  flows,  for  the  each  of  the  two  years  in  the  period  ended  December  31,  2022,  and  the  related  notes  (collectively  referred  to  as  the
"financial statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company
as of December 31, 2022 and 2021, and the results of its operations and its cash flows for the each of the two years in the period ended
December 31, 2022, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

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

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

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

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current-period audit of the financial statements that was
communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are material to the
financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit
matters does not alter in any way our opinion on the 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.

Purchase of Rights to Future Milestones, Royalties and Commercial Payments — Refer to Notes 2 and 5 to the financial statements

Critical Audit Matter Description

The  Company  has  purchased  rights  to  receive  a  portion  of  certain  future  developmental,  regulatory  and  commercial  sales
milestones, royalties and option fees on sales of products currently in clinical development. The carrying value of the long-term royalty and
commercial payment receivables (“milestone and royalty rights”) is $63.7 million as of December 31, 2022. The Company accounts for
milestone  and  royalty  rights  on  a  non-accrual  basis  using  the  cost  recovery  method.  The  developmental  pipeline  products  are  non-
commercialized,  non-approved  products  that  require  FDA  or  other  regulatory  approval,  and  thus  have  uncertain  cash  flows.  The
commercial payment product has limited available historical sales information, and as such the Company is unable to reasonably estimate
the amount and timing of the commercial

F-1

Table of Contents

payments to be received. Management assesses any impairment indicators and changes in expected recoverability of the long-term royalty
and commercial payment receivable assets regularly.

The  determination  of  impairment  indicators  requires  obtaining  and  assessing  all  available  information  regarding  the
developmental pipeline products and the commercial payment product as of the Company’s financial reporting dates. The Company obtains
information through available sources including: 1) updates from the selling party of the milestone and royalty rights, 2) publicly available
clinical trial data and news, and 3) public disclosures provided by the research companies developing the products.

We  identified  the  accounting  evaluation  of  impairment  indicators  as  a  critical  audit  matter,  primarily  due  to  the  Company’s
reliance on third parties to disclose updates to the Company timely for the Company's required financial reporting deadlines.  The timing of
disclosure to the Company of a change in the use, or intent for future use, of the licenses related to the milestone and royalty rights could
have a significant impact on the fair value of milestone and royalty rights and a significant change in fair value could cause a significant
impairment.  Performing  audit  procedures  to  evaluate  whether  management  had  appropriately  identified  impairment  indicators  involved
challenging  and  complex  auditor  judgment,  including  the  need  to  involve  more  experienced  auditors  in  assessing  the  completeness  of
available information and if any available public information represents an impairment indicator as of the Company’s financial reporting
date.

How the Critical Audit Matter Was Addressed in the Audit

Our  audit  procedures  related  to  the  evaluation  of  assumptions  used  in  the  impairment  assessment  of  the  long-term  royalty

receivables included, but were not limited to, the following:

•

Considering the impact of changes in the regulatory environment on management’s impairment indicator conclusions.

• We  evaluated  the  Company’s  assessment  of  impairment  indicators  by  developing  an  independent  expectation  of  impairment
indicators  through  research  of  third-party  disclosures  and  clinical  trial  news  for  programs  associated  with  the  milestone  and
royalty rights and comparing such expectation to those included in the impairment analysis.

• We inspected the Company’s documentation of inquiries and written correspondence to obtain program updates from the selling

parties of the milestone and royalty rights throughout the year and through the Company’s reporting date.  

•

Confirmed  with  the  selling  parties  of  the  milestone  and  royalty  rights  that  complete  information  known  to  the  selling  party
regarding the associated research programs was provided timely, completely, and accurately to the Company.

/s/ DELOITTE & TOUCHE LLP

San Francisco, California  
March 9, 2023  

We have served as the Company's auditor since 2018.

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Table of Contents

XOMA Corporation
CONSOLIDATED BALANCE SHEETS
(in thousands, except share data)

ASSETS

Current assets:

Cash and cash equivalents
Restricted cash
Short-term equity securities
Trade and other receivables, net
Short-term royalty and commercial payment receivables
Prepaid expenses and other current assets

Total current assets

Property and equipment, net
Operating lease right-of-use assets
Long-term royalty and commercial payment receivables
Intangible assets, net
Other assets - long term

Total assets

Current liabilities:

LIABILITIES AND STOCKHOLDERS’ EQUITY

Accounts payable
Accrued and other liabilities
Income taxes payable
Contingent consideration under RPAs and CPPAs
Operating lease liabilities
Unearned revenue recognized under units-of-revenue method
Preferred stock dividend accrual

Total current liabilities

Unearned revenue recognized under units-of-revenue method – long-term
Long-term operating lease liabilities

Total liabilities

Commitments and Contingencies (Note 12)

Stockholders’ equity:

Preferred Stock, $0.05 par value, 1,000,000 shares authorized:

8.625% Series A cumulative, perpetual preferred stock, 984,000 shares issued and outstanding at December 31, 2022 and
December 31, 2021
8.375% Series B cumulative, perpetual preferred stock, 1,600 shares issued and outstanding at December 31, 2022 and
December 31, 2021
Convertible preferred stock, 5,003 shares issued and outstanding at December 31, 2022 and December 31, 2021

Common stock, $0.0075 par value, 277,333,332 shares authorized, 11,454,025 and 11,315,263 shares issued and outstanding
at December 31, 2022 and December 31, 2021, respectively
Additional paid-in capital
Accumulated deficit

Total stockholders’ equity

Total liabilities and stockholders’ equity

December 31, 
2022

December 31, 
2021

$

$

$

57,826
—
335
1
2,366
725
61,253
7
29
63,683
15,150
260
140,382

524
2,918
—
75
34
1,899
1,368
6,818
9,550
—
16,368

49

—
—

93,328
2,049
774
209
—
613
96,973
13
200
69,075
—
301
166,562

1,072
525
91
8,075
195
1,641
1,368
12,967
11,685
34
24,686

49

—
—

86
1,306,271
(1,182,392)
124,014
140,382

$

85
1,307,030
(1,165,288)
141,876
166,562

$

$

$

$

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

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XOMA Corporation
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME
(in thousands, except per share amounts)

Revenues:

Revenue from contracts with customers
Revenue recognized under units-of-revenue method

Total revenues

Operating expenses:

Research and development
General and administrative
Amortization of intangible assets

Total operating expenses

(Loss) income from operations

Other income (expense), net:

Interest expense
Loss on extinguishment of debt
Other income (expense), net

(Loss) income before income tax
Income tax benefit (expense)

Net (loss) income and comprehensive (loss) income
Net (loss) income and comprehensive (loss) income (attributable to) available to common stockholders (Note 10), basic
Net (loss) income and comprehensive (loss) income (attributable to) available to common stockholders (Note 10),
diluted
Basic net (loss) income per share (attributable to) available to common stockholders
Diluted net (loss) income per share (attributable to) available to common stockholders
Weighted average shares used in computing basic net (loss) income per share (attributable to) available to common
stockholders
Weighted average shares used in computing diluted net (loss) income per share (attributable to) available to common
stockholders

$

$
$

$
$
$

Year Ended
December 31, 

2022

2021

$

4,150
1,877
6,027

153
23,191
97
23,441

(17,414)

—  
—
295
(17,119)
15
(17,104)
(22,576)

$
$

(22,576)
(1.98)
(1.98)

$
$
$

11,413

11,413

36,518
1,642
38,160

171
20,460
—
20,631

17,529

(461)
(300)
(879)
15,889
(91)
15,798
7,787

7,968
0.69
0.65

11,288

12,192

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

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XOMA Corporation
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
(in thousands)

Series A 
Preferred Stock
Shares    Amount    Shares    Amount    Shares    Amount       Shares    Amount  

Convertible
Preferred Stock

Series B
Preferred Stock

Common Stock

Balance, December 31, 2021
Exercise of stock options
Stock-based compensation
expense
Issuance of common stock
related to 401(k) contribution
and ESPP
Preferred stock dividends
Net loss and comprehensive
loss
Balance, December 31, 2022

984 $
—  

—  

—

—  
984 $

49
—

—

—
—

—
49

2 $
—  

—  

—

—  
2 $

—
—

—

—
—

—
—

5 $
—  

—  

—

—  
5 $

—  
—  

—  

—
—

—  
—  

Additional
Paid-In
Capital
1,307,030 $
929  

Accumulated
Deficit
(1,165,288) $
—  

Total
Stockholders’
Equity

141,876
930

11,315 $
129  

85 $
1  

—  

—  

3,608  

—  

3,608

10
—

—
—

176
(5,472)

—
—

—  
11,454 $

—  
86 $

—  
1,306,271 $

(17,104)  
(1,182,392) $

176
(5,472)

(17,104)
124,014

Series A 
Preferred Stock
Shares    Amount    Shares    Amount    Shares    Amount       Shares    Amount  

Series B
Preferred Stock

Convertible
Preferred Stock

Common Stock

Balance, December 31, 2020
Issuance of preferred stock
Exercise of stock options
Stock-based compensation
expense
Exercise of common stock
warrants
Issuance of common stock
related to 401(k) contribution
and ESPP
Preferred stock dividends
Net income and
comprehensive income
Balance, December 31, 2021

984 $
—  
—  

—  

—  

—  
—  

—  
984 $

49
—
—

—

—

—
—

—
49

— $
2
—  

—  

—  

—  
—  

—  
2 $

—
—
—

—

—

—
—

—
—

5 $
—  
—  

—  

—  

—  
—  

—  
5 $

—  
—
—  

—  

—  

—  
—  

—  
—  

11,229 $
—  
77  

—  

5  

4  
—  

Additional
Paid-In
Capital
1,267,377 $
37,140
1,052  

6,195  

—  

84 $
—
1  

—  

—  

—  
—  

133  
(4,867)  

Accumulated
Deficit
(1,181,086) $

Total
Stockholders’
Equity

—
—

—  

—  

—  
—

86,424
37,140
1,053

6,195

—

133
(4,867)

—  
11,315 $

—  
85 $

—  
1,307,030 $

15,798  
(1,165,288) $

15,798
141,876

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

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XOMA Corporation
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

Cash flows from operating activities:

Net (loss) income
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:

Year Ended December 31, 
2022

2021

$

(17,104)

$

15,798

Stock-based compensation expense
Common stock contribution to 401(k)
Depreciation
Amortization of debt issuance costs, debt discount and final payment on debt
Loss on extinguishment of debt
Reduction of contingent NIH refund liability
Non-cash lease expense
Change in fair value of equity securities
Amortization of intangible assets
Changes in assets and liabilities:

Trade and other receivables, net
Income tax receivable
Prepaid expenses and other assets
Accounts payable and accrued liabilities
Income taxes payable
Operating lease liabilities
Unearned revenue recognized under units-of-revenue method
Contingent NIH refund liability
Other liabilities

Net cash (used in) provided by operating activities

Cash flows from investing activities:

Payments of consideration under RPAs and CPPAs
Receipts under RPAs and CPPAs
Payment for IP acquired under the ObsEva IP Acquisition Agreement

Net cash used in investing activities

Cash flows from financing activities:

Proceeds from issuance of preferred stock
Payment of preferred stock dividends
Payment of preferred and common stock issuance costs
Proceeds from exercise of options and other share-based compensation
Taxes paid related to net share settlement of equity awards
Principal payments – debt
Payment for extinguishment of debt
Payment for debt modification fee

Net cash (used in) provided by financing activities

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

Supplemental Cash Flow Information:

Cash paid for taxes
Cash paid for interest

Non-cash investing and financing activities:

Estimated fair value of contingent consideration under the Affitech CPPA
Preferred stock dividend accrual
Accrued transaction costs in connection with ObsEva IP Acquisition

3,608
85
7
—
—
—
170
439
97

208
—
(71)
1,845
(91)
(195)
(1,877)
—
—
(12,879)

(8,000)
3,026
(15,247)
(20,221)

—
(5,472)
—
2,419
(1,398)
—
—
—
(4,451)

(37,551)
95,377
57,826

76
—

—
1,368
122

$

$
$

$
$
$

6,195
90
7
200
300
(105)
160
919
—

54
1,526
(169)
765
91
(179)
(1,642)
(1,305)
(27)
22,678

(26,500)
—
—
(26,500)

40,000
(3,499)
(3,385)
1,584
(488)
(4,250)
(17,103)
(24)
12,835

9,013
86,364
95,377

—
311

8,000
1,368
—

$

$
$

$
$
$

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

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1. Description of Business

XOMA Corporation
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

XOMA,  a  Delaware  corporation,  is  a  biotech  royalty  aggregator  with  a  sizable  portfolio  of  economic  rights  to  future  potential
milestone  and  royalty  payments  associated  with  partnered  commercial  and  pre-commercial  therapeutic  candidates.  The  Company’s
portfolio  was  built  through  the  acquisition  of  rights  to  future  milestones  and  royalties  that  the  Company  has  made  since  the  royalty
aggregator  business  model  was  implemented  in  2017  combined  with  outlicensing  its  proprietary  products  and  platforms  from  its  legacy
discovery  and  development  business.  The  Company’s  drug  royalty  aggregator  business  is  focused  on  early  to  mid-stage  clinical  assets
primarily in Phase 1 and 2 with significant commercial sales potential that are licensed to large-cap partners. The Company expects that
most of its future revenue will be based on payments the Company may receive for milestones and royalties related to these programs.

Liquidity and Financial Condition

The  Company  has  incurred  significant  operating  losses  and  negative  cash  flows  from  operations  since  its  inception.  As  of

December 31, 2022, the Company had cash and cash equivalents of $57.8 million.

Based  on  the  Company’s  current  cash  balance  and  its  ability  to  control  discretionary  spending,  such  as  milestone  and  royalty
acquisitions, the Company has evaluated and concluded its financial condition is sufficient to fund its planned operations and commitments
and contractual obligations for a period of at least one year following the date that these consolidated financial statements are issued.

2. Basis of Presentation and Significant Accounting Policies

Basis of Presentation

The accompanying consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All
intercompany accounts and transactions among consolidated entities were eliminated upon consolidation. The accompanying consolidated
financial  statements  were  prepared  in  accordance  with  GAAP  in  the  United  States  for  financial  information  and  with  the  instructions  to
Form 10-K and Article 10 of Regulation S-X. 

Use of Estimates

The preparation of financial statements in conformity with GAAP in the United States requires management to make estimates
and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosures. On an ongoing basis,
management evaluates its estimates including, but not limited to, those related to revenue recognition, revenue recognized under the units-
of-revenue  method,  royalty  and  commercial  payment  receivables,  intangible  assets,  legal  contingencies,  contingent  consideration  and
stock-based  compensation.  The  Company  bases  its  estimates  on  historical  experience  and  on  various  other  market-specific  and  other
relevant assumptions that are believed 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.

Actual results may differ significantly from these estimates, such as the Company’s amortization of the payments received from
HCRP. Under the contracts with HCRP, the amortization for the reporting period is calculated based on the payments expected to be made
by the licensees to HCRP over the term of the arrangement. Any changes to the estimated payments by the licensees to HCRP can result in
a material adjustment to revenue previously reported.

Cash, Cash Equivalents and Restricted Cash

Cash  consists  of  bank  deposits  held  in  business  checking  and  interest-bearing  deposit  accounts. As  of  December  31,  2022,  the
Company had cash equivalent balances of $30.3 million, defined as highly liquid financial instruments that are both readily convertible to
known amounts of cash and so near their maturity that they present insignificant risk of

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changes in value because of changes in interest rates. The Company considers all highly liquid debt instruments with maturities of three
months or less at the time the Company acquires them and that can be liquidated without prior notice or penalty to be cash equivalents. As
of December 31, 2021, the Company did not have any cash equivalent balances.

Restricted cash as of December 31, 2021 consisted of bank deposits held to pay dividends on the Company’s Series A and Series B
Preferred Stock. As of December 31, 2022, the Company has paid the first year of dividends for the Series A and Series B Preferred stock
and is no longer required to hold a restricted cash balance.

The  Company  maintains  cash  balances  at  commercial  banks.  Balances  commonly  exceed  the  amount  insured  by  the  Federal
Deposit  Insurance  Corporation.  The  Company  has  not  experienced  any  losses  in  such  accounts,  and  management  believes  that  the
Company is not exposed to any significant credit risk with respect to such cash.

The  following  table  provides  a  reconciliation  of  cash  and  cash  equivalents  and  restricted  cash  reported  within  the  consolidated

balance sheets that sum to the total of the same amounts shown in the consolidated statements of cash flows (in thousands):

Cash and cash equivalents
Restricted cash
Total cash, cash equivalents and restricted cash

Revenue Recognition

December 31,
2022

December 31,
2021

$

$

57,826
—
57,826

$

$

93,328
2,049
95,377

The Company recognizes revenue from all contracts with customers according to ASC 606, except for contracts that are within the
scope of other standards, such as leases, insurance, collaboration arrangements and financial instruments. The Company recognizes revenue
when its customer obtains control of promised goods or services, in an amount that reflects the consideration which the Company expects
to receive in exchange for those goods or services.

To determine revenue recognition for arrangements that the Company determines are within the scope of ASC 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) the Company satisfies a performance obligation. The Company only applies the five-step model to contracts when it
is probable that the Company will collect the consideration it is entitled to in exchange for the goods or services it transfers to the customer.
At  contract  inception,  once  the  contract  is  determined  to  be  within  the  scope  of ASC  606,  the  Company  assesses  the  goods  or  services
promised within each contract and determines those that are performance obligations and assesses whether each promised good or service
is  distinct. The  Company  then  recognizes  as  revenue  the  amount  of  the  transaction  price  that  is  allocated  to  the  respective  performance
obligation based on relative fair values, when (or as) the performance obligation is satisfied.

The Company recognizes revenue from its license and collaboration arrangements and royalties. The terms of the arrangements
generally include payment to the Company of one or more of the following: non-refundable, upfront license fees, development, regulatory
and commercial milestone payments, and royalties on net sales of licensed products.

License of intellectual property

If the license to the Company’s intellectual property is determined to be distinct from the other performance obligations identified
in  the  arrangement,  the  Company  recognizes  revenue  from  non-refundable,  upfront  fees  allocated  to  the  license  when  the  license  is
transferred to the customer and the customer is able to use and benefit from the license. For licenses that are bundled with other promises,
such  as  transfer  of  related  materials,  process  and  know-how,  the  Company  utilizes  judgement  to  assess  the  nature  of  the  combined
performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time. Under the
Company’s license agreements, the nature of

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the combined performance obligation is the granting of licenses to the customers as the other promises are not separately identifiable in the
context of the arrangement. Since the Company grants the license to a customer as it exists at the point of transfer and is not involved in
any future development or commercialization of the products related to the license, the nature of the license is a right to use the Company’s
intellectual  property  as  transferred.  As  such,  the  Company  recognizes  revenue  related  to  the  combined  performance  obligation  upon
completion of the delivery of the related materials, process and know-how (i.e., at a point in time).

Milestone payments

At  the  inception  of  each  arrangement  that  includes  development  and  regulatory  milestone  payments,  the  Company  evaluates
whether the milestones are considered probable of being reached and estimates the amount to be included in the transaction price. ASC 606
suggests  two  alternatives  to  use  when  estimating  the  amount  of  variable  consideration:  the  expected  value  method  and  the  most  likely
amount  method.  Under  the  expected  value  method,  an  entity  considers  the  sum  of  probability-weighted  amounts  in  a  range  of  possible
consideration  amounts.  Under  the  most  likely  amount  method,  an  entity  considers  the  single  most  likely  amount  in  a  range  of  possible
consideration amounts. The Company uses the most likely amount method for development and regulatory milestone payments.

If it is probable that a significant cumulative revenue reversal would not occur, the associated milestone value is included in the
transaction price. Milestone payments that are not within the control of the Company or the licensee, such as regulatory approvals, are not
considered  probable  of  being  achieved  until  those  approvals  are  received.  The  transaction  price  is  then  allocated  to  each  performance
obligation on a relative stand-alone selling price basis. The Company recognizes revenue as or when the performance obligations under the
contract  are  satisfied. At  the  end  of  each  subsequent  reporting  period,  the  Company  re-evaluates  the  probability  or  achievement  of  each
such milestone and any related constraint, and if necessary, adjusts its estimates of the overall transaction price. Any such adjustments are
recorded on a cumulative catch-up basis, which would affect revenue and earnings in the period of adjustment.

Royalties

For arrangements that include sales-based royalties, including milestone payments based on the level of sales, and the license is
deemed to be the predominant item to which the royalties relate, the Company recognizes revenue at the later of (i) when the related sales
occur,  or  (ii)  when  the  performance  obligation  to  which  some  or  all  of  the  royalty  has  been  allocated  has  been  satisfied  (or  partially
satisfied).

Upfront  payments  and  fees  are  recorded  as  deferred  revenue  upon  receipt  or  when  due  and  may  require  deferral  of  revenue
recognition to a future period until the Company performs its obligations under these arrangements. Amounts payable to the Company are
recorded  as  accounts  receivable  when  the  Company’s  right  to  consideration  is  unconditional.  The  Company  does  not  assess  whether  a
contract  has  a  significant  financing  component  if  the  expectation  at  contract  inception  is  such  that  the  period  between  payment  by  the
customer and the transfer of the promised goods or services to the customer will be one year or less.

Sale of Future Revenue Streams

The  Company  has  sold  its  rights  to  receive  certain  milestones  and  royalties  on  product  sales.  In  the  circumstance  where  the
Company has sold its rights to future milestones and royalties under a license agreement and also maintains limited continuing involvement
in  the  arrangement  (but  not  significant  continuing  involvement  in  the  generation  of  the  cash  flows  that  are  due  to  the  purchaser),  the
Company defers recognition of the proceeds it receives for the sale of milestone or royalty streams and recognizes such unearned revenue
as  revenue  under  units-of-revenue  method  over  the  life  of  the  underlying  license  agreement.  Under  the  units-of-revenue  method,
amortization for a reporting period is calculated by computing a ratio of the proceeds received from the purchaser to the total payments
expected to be made to the purchaser over the term of the agreement, and then applying that ratio to the period’s cash payment.

Estimating the total payments expected to be received by the purchaser over the term of such arrangements requires management

to use subjective estimates and assumptions. Changes to the Company’s estimate of the payments

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expected  to  be  made  to  the  purchaser  over  the  term  of  such  arrangements  could  have  a  material  effect  on  the  amount  of  revenues
recognized in any particular period.

Stock-Based Compensation

The  Company  recognizes  compensation  expense  for  all  stock-based  payment  awards  made  to  the  Company’s  employees,
consultants and directors that are expected to vest based on estimated fair values. The valuation of stock option awards is determined at the
date of grant using the Black-Scholes Model. The Black-Scholes Model requires inputs such as the expected term of the option, expected
volatility and risk-free interest rate. To establish an estimate of expected term, the Company considers the vesting period and contractual
period  of  the  award  and  its  historical  experience  of  stock  option  exercises,  post-vesting  cancellations  and  volatility.  The  estimate  of
expected  volatility  is  based  on  the  Company’s  historical  volatility.  The  risk-free  rate  is  based  on  the  yield  available  on  United  States
Treasury  zero-coupon  issues  corresponding  to  the  expected  term  of  the  award.  The  Company  records  forfeitures  when  they  occur.  The
Company  records  compensation  expense  for  service-based  awards  on  a  straight-line  basis  over  the  requisite  service  period,  which  is
generally the vesting period of the award, or to the date on which retirement eligibility is achieved, if shorter.

Equity Securities

The Company entered into a license agreement with Rezolute in December 2017, in which it received shares of common stock
from Rezolute (Note 4). Equity investments in Rezolute are classified in the consolidated balance sheets as equity securities. The equity
securities are measured at fair value, with changes in fair value recorded in the other income (expense), net line item of the consolidated
statement of operations and comprehensive (loss) income at each reporting period. The Company remeasures its equity investments at each
reporting period until such time that the investment is sold or disposed of. If the Company sells an investment, any realized gains and losses
on the sale of the securities will be recognized in the consolidated statement of operations and comprehensive (loss) income in the period of
sale.

Purchase of Rights to Future Milestones, Royalties and Commercial Payments

The  Company  has  purchased  rights  to  receive  a  portion  of  certain  future  developmental,  regulatory  and  commercial  sales
milestones,  royalties  and  option  fees  on  sales  of  products  currently  in  clinical  development.  The  Company  acquired  such  rights  from
various entities and recorded the amount paid for these rights as long-term royalty receivables (Note 5). In addition, the Company may be
obligated to make contingent payments related to certain product development milestones, fees upon exercise of options related to future
license  products  and  sales-based  milestones.  The  contingent  payments  are  evaluated  whether  they  are  freestanding  instruments  or
embedded derivatives. If the contingent payments fall within the scope of ASC 815, the contingent payments are measured at fair value at
the inception of the arrangement, and subject to remeasurement to fair value each reporting period. Any changes in the estimated fair value
are recorded in the consolidated statement of operations and comprehensive (loss) income.

The Company accounts for milestone and royalty rights related to developmental pipeline products on a non-accrual basis using
the  cost  recovery  method.  These  developmental  pipeline  products  are  non-commercialized,  non-approved  products  that  require  FDA  or
other regulatory approval, and thus have uncertain cash flows. The Company is not yet able to reliably forecast future cash flows given
their  pre-commercial  stages  of  development.  The  related  receivable  balance  is  classified  as  noncurrent  or  current  based  on  whether
payments  are  probable  to  be  received  in  the  near  term.  Under  the  cost  recovery  method,  any  milestone  or  royalty  payment  received  is
recorded  as  a  direct  reduction  of  the  recorded  receivable  balance.  When  the  recorded  receivable  balance  has  been  fully  collected,  any
additional amounts collected are recognized as revenue.

The Company reviews public information on clinical trials, press releases and updates from its partners regularly to identify any
impairment  indicators  or  changes  in  expected  recoverability  of  the  long-term  royalty  receivable  asset.  If  an  impairment  indicator  is
identified, and the Company determines expected future cash flows discounted to the current period are less than the carrying value of the
asset, the Company will record impairment. The impairment will be recognized by reducing the financial asset to an amount that represents
the  present  value  of  the  most  recent  estimate  of  future  cash  flows.  No  impairment  indicators  were  identified,  and  no  impairment  was
recorded as of December 31, 2022 and 2021.

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Asset Acquisitions

As a first step, for each acquisition, the Company determines if it is an acquisition of a business or an asset acquisition under ASC
805. Acquisitions of assets or a group of assets that do not meet the definition of a business are accounted for as asset acquisitions under
ASC 805-50, using the cost accumulation method, whereby the cost of the acquisition, including certain transaction costs, is allocated to
the assets acquired on the basis of relative fair values (Note 4).

Contingent payments are evaluated whether they are freestanding instruments or embedded derivatives. If the contingent payments
fall within the scope of ASC 815, the contingent payments are measured at fair value at the acquisition date, and subject to remeasurement
to  fair  value  each  reporting  period.  The  estimated  fair  value  at  the  acquisition  date  is  included  in  the  cost  of  the  acquired  assets. Any
subsequent changes in the estimated fair value are recorded in the consolidated statement of operations and comprehensive (loss) income.
Other contingent consideration payments are recognized when the amount is probable and estimable according to ASC 450.

Cash payments related to acquired assets are reflected as an investing cash flow in the Company’s consolidated statement of cash

flows.

Intangible Assets

The identifiable intangible asset consists of IP acquired in the ObsEva IP Acquisition Agreement in 2022. This intangible asset is
amortized  on  a  straight-line  basis  over  its  estimated  useful  life  of  17  years.  The  straight-line  method  of  amortization  represents  the
Company’s best estimate of the distribution of the economic value of the identifiable intangible asset. The intangible asset is carried at cost
less  accumulated  amortization.  Amortization  will  be  included  in  amortization  of  intangible  assets  in  the  consolidated  statement  of
operations and comprehensive (loss) income.

Intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of
an  asset  may  not  be  recoverable.  Recoverability  is  measured  by  comparison  of  the  carrying  amount  of  an  asset  group  to  the  future  net
undiscounted cash flows that the assets are expected to generate. If the carrying amount of an asset group exceeds its estimated future cash
flows, an impairment charge is recognized in the amount by which the carrying amount of the asset group exceeds the fair value of the
asset group.

Leases

The Company leases its headquarters office space in Emeryville, California. The Company determines the initial classification and
measurement  of  its  right-of-use  assets  and  lease  liabilities  at  the  lease  commencement  date  and  thereafter  if  modified.  The  lease  term
includes  any  renewal  options  and  termination  options  that  the  Company  is  reasonably  certain  to  exercise.  The  present  value  of  lease
payments is determined by using the interest rate implicit in the lease, if that rate is readily determinable; otherwise, the Company uses its
incremental  borrowing  rate. The  incremental  borrowing  rate  is  determined  by  using  the  rate  of  interest  that  the  Company  would  pay  to
borrow  on  a  collateralized  basis  an  amount  equal  to  the  lease  payments  for  a  similar  term  and  in  a  similar  economic  environment. The
Company built its incremental borrowing rate starting with the interest rate on its fully collateralized debt and then adjusted it for lease term
length.

Rent expense for the operating lease is recognized on a straight-line basis, over the reasonably assured lease term based on the

total lease payments and is included in operating expenses in the consolidated statements of operations and comprehensive (loss) income.

The  Company  has  elected  the  practical  expedient  to  not  separate  lease  and  non-lease  components.  The  Company’s  non-lease
components are primarily related to property maintenance, which varies based on future outcomes, and thus is recognized in rent expense
when incurred.

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Income Taxes

The Company accounts for income taxes using the liability method under which deferred tax assets and liabilities are determined
based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and
laws  that  will  be  in  effect  when  the  differences  are  expected  to  reverse. Valuation  allowances  are  established  when  necessary  to  reduce
deferred tax assets to the amount which is more likely than not to be realizable.

The  recognition,  derecognition  and  measurement  of  a  tax  position  is  based  on  management’s  best  judgment  given  the  facts,
circumstances and information available at each reporting date. The Company’s policy is to recognize interest and penalties related to the
underpayment of income taxes as a component of income tax expense. To date, there have been no interest or penalties charged in relation
to the unrecognized tax benefits.

Net (Loss) Income per Share (Attributable to) Available to Common Stockholders

The Company calculates basic and diluted (loss) income per share (attributable to) available to common stockholders using the
two-class  method.  The  Company’s  convertible  Series  X  preferred  stocks  participate  in  any  dividends  declared  by  the  Company  on  its
common stock and are therefore considered to be participating securities. The Company’s Series A and Series B Preferred Stock do not
participate  in  any  dividends  or  distribution  by  the  Company  on  its  common  stock  and  are  therefore  not  considered  to  be  participating
securities.

Under the two-class method, net income, as adjusted for any accumulated dividends on Series A and Series B Preferred Stock for
the  period,  is  allocated  to  each  class  of  common  stock  and  participating  security  as  if  all  of  the  net  income  for  the  period  had  been
distributed.  Undistributed  earnings  allocated  to  participating  securities  are  subtracted  from  net  income  in  determining  net  income
attributable to common stockholders. During periods of loss, the Company allocates no loss to participating securities because they have no
contractual obligation to share in the losses of the Company. Basic net (loss) income per share attributable to common stockholders is then
calculated by dividing the net (loss) income attributable to common stockholders by the weighted average number of shares of common
stock outstanding during the period. All participating securities are excluded from the basic weighted average common shares outstanding.

Diluted  net  (loss)  income  per  share  attributable  to  common  stockholders  is  based  on  the  weighted  average  number  of  shares
outstanding during the period, adjusted to include the assumed exercise of certain stock options and warrants for common stock using the
treasury method, if dilutive. The calculation assumes that any proceeds that could be obtained upon exercise of options and warrants would
be used to purchase common stock at the average market price during the period. Adjustments to the denominator are required to reflect the
related dilutive shares. The Company’s Series A and Series B Preferred Stock become convertible upon the occurrence of specific events
other than a change in the Company’s share price and, therefore, are not included in the diluted shares until the contingency is resolved.

Comprehensive (Loss) Income

Comprehensive (loss) income is comprised of two components: net (loss) income and other comprehensive (loss) income. Other
comprehensive (loss) income refers to gains and losses that under U.S. GAAP are recorded as an element of stockholders’ equity but are
excluded from net (loss) income. The Company did not record any transactions within other comprehensive (loss) income in the periods
presented and, therefore, the net (loss) income and comprehensive (loss) income were the same for all periods presented.

Accounting Pronouncements Recently Adopted

In  May  2021,  the  FASB  issued  ASU  2021-04,  Earnings  Per  Share  (Topic  260),  Debt—Modifications  and  Extinguishments
(Subtopic  470-50),  Compensation—Stock  Compensation  (Topic  718),  and  Derivatives  and  Hedging—Contracts  in  Entity’s  Own  Equity
(Subtopic  815-40):  Issuer’s Accounting  for  Certain  Modifications  or  Exchanges  of  Freestanding  Equity-Classified Written  Call  Options.
The  amendments  in ASU  No.  2021-04  provide  guidance  to  clarify  and  reduce  diversity  in  an  issuer’s  accounting  for  modifications  or
exchanges of freestanding equity-classified written call options (for example, warrants) that remain equity classified after modification or
exchange. The amendments in this ASU

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No. 2021-04 are effective for all entities for fiscal years beginning after December 15, 2021, and interim periods within those fiscal years,
with early adoption permitted, including interim periods within those fiscal years. The Company adopted ASU 2021-04 and related updates
on January 1, 2022. The adoption of ASU 2021-04 had no impact on the consolidated financial statements.

Recent Accounting Pronouncements Not Yet Adopted

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on
Financial  Instruments. ASU  2016-13  replaced  the  incurred  loss  impairment  methodology  under  current  GAAP  with  a  methodology  that
reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss
estimates. ASU 2016-13 requires use of a forward-looking expected credit loss model for accounts receivables, loans, and other financial
instruments. Adoption of the standard requires using a modified retrospective approach through a cumulative-effect adjustment to retained
earnings as of the effective date to align existing credit loss methodology with the new standard. ASU 2016-13 will be effective for smaller
reporting  companies  for  fiscal  years  beginning  after  December  15,  2022,  including  interim  periods  within  those  fiscal  years,  using  a
modified retrospective approach. The Company plans to adopt ASU 2016-13 and related updates on January 1, 2023. The Company does
not expect it to have a material impact on its consolidated financial statements.

In October 2021, the FASB issued ASU 2021-08, Business Combinations – Accounting for Contract Assets and Contact Liabilities
from Contracts with Customers. The guidance is intended to improve the accounting for acquired revenue contracts with customers in a
business combination by addressing diversity in practice. The guidance requires an acquirer to recognize and measure contract assets and
liabilities acquired in a business combination in accordance with Topic 606 as if they had originated the contracts, as opposed to at fair
value on the acquisition date. The standard will be effective for business combinations that occur after January 1, 2023. The Company plans
to  adopt  ASU  2021-08  and  related  updates  on  January  1,  2023.  The  Company  does  not  expect  it  to  have  a  material  impact  on  its
consolidated financial statements.

3. Consolidated Financial Statement Detail

Equity Securities

As of December 31, 2022 and 2021, equity securities consisted of an investment in Rezolute’s common stock of $0.3 million and
$0.8 million, respectively (Note 4). For the years ended December 31, 2022 and 2021, the Company recognized a loss of $0.4 million and
$0.9 million, respectively, due to the change in fair value of its investment in Rezolute’s common stock in the other income (expense), net
line item of the consolidated statements of operations and comprehensive (loss) income.

Intangible assets, net

The following table summarizes cost, accumulated amortization, and net carrying value of the intangible assets as of December

31, 2022 (in thousands):

As of December 31, 2022
Ebopiprant IP (Note 4)
Total intangible assets

Cost

Accumulated
Amortization

Net Carrying
Value

$
$

15,247
15,247

$
$

97
97

$
$

15,150
15,150

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The remaining life of the intangible assets is 16.9 years. The following table presents the projected amortization expense for the

next five years (in thousands):

2023
2024
2025
2026
2027
Total

Accrued and Other Liabilities

Accrued and other liabilities consisted of the following (in thousands):

Accrued payroll and benefits  
Accrued legal and accounting fees
Accrued incentive compensation
Other accrued liabilities

Total

4. Licensing and Other Arrangements

ObsEva

Intangible Asset
     Amortization

$

$

897
897
897
897
897
4,485

December 31, 
2022

December 31, 
2021

1,449
867
562
40
2,918

$

$

135
295
55
40
525

On  November  21,  2022,  the  Company  entered  into  the  ObsEva  IP  Acquisition  Agreement  pursuant  to  which  the  Company
acquired all of ObsEva’s intellectual property (patents and know-how) and license agreement rights related to ebopiprant, an investigational
compound previously licensed by ObsEva from Merck KGaA. The Company also assumed ObsEva’s ongoing rights and obligations under
the Organon License Agreement and the Merck KGaA License Agreement. Pursuant to the Organon License Agreement, XOMA is eligible
to receive up to $475.0 million in payments for ebopiprant development, commercialization and sales-based milestones.  If ebopiprant is
successfully commercialized, the Company will be entitled to receive royalties that range from low to mid-teens from Organon and will be
required  to  make  mid-single-digit  royalty  payments  to  Merck  KGaA.    The  Company  paid  ObsEva  a  $15.0  million  upfront  payment  at
closing  and  will  pay  potential  earn-out  payments  of  up  to  $97.5  million  for  development,  regulatory  and  sales-based  milestones,
representing a portion of what the Company will receive pursuant to the Organon License Agreement.

The transaction was treated as an acquisition of a finite-lived intangible asset (Note 2). As such, the Company’s cost to acquire
said  intangible  asset  of  $15.2  million,  consisting  of  $15.0  million  cash  paid  upon  closing  of  the  ObsEva  IP Acquisition Agreement  and
direct  incremental  transaction  costs  of  $0.2  million,  was  recognized  as  a  long-term  asset  in  the  consolidated  balance  sheet  for  the  year
ended December 31, 2022. The estimated useful life of the intangible asset at acquisition represented 17 years. The Company recognized
$0.1  million  of  amortization  expense  in  the  consolidated  statement  of  operations  and  comprehensive  (loss)  income  for  the  year  ended
December 31, 2022. No impairment indicators were identified, and no impairment was recorded as of December 31, 2022.

The  Company  concluded  that  the  development  and  regulatory  milestone  payments  of  $46.5  million,  sales-based  milestones
payments of $51.0 million and royalty payments to Merck KGaA do not meet the definition of a derivative under ASC 815 and a liability
will  be  recognized  at  the  time  that  the  underlying  revenue  is  recognized  under  the  Organon  License Agreement  for  the  corresponding
development and regulatory milestone payments, sales-based milestone

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payments, and royalty payments. ASC 450 may require recognition of the contingent consideration if it is probable that a liability has been
incurred and the amount of that liability can be reasonably estimated. Due to the nature of the non-sales and sales-based milestones the
Company expects the contingent payments to be probable of payment at the same time that revenue from the Organon License Agreement
would be recorded.

As  of  December  31,  2022,  there  were  no  contract  assets  or  contract  liabilities  related  to  this  arrangement.  No  revenue  was

recognized related to this arrangement for the year ended December 31, 2022.

Novartis – Anti-TGFβ Antibody (NIS793)

On  September  30,  2015,  the  Company  and  Novartis  entered  into  the Anti-TGFβ  Antibody  License Agreement  under  which  the
Company  granted  Novartis  an  exclusive,  world-wide,  royalty-bearing  license  to  the  Company’s  anti-transforming  growth  factor  beta
(“TGFβ”) antibody program (now “NIS793”). Under the terms of the Anti-TGFβ Antibody License Agreement, Novartis has worldwide
rights to NIS793 and is responsible for the development and commercialization of antibodies and products containing antibodies arising
from NIS793. Unless terminated earlier, the Anti-TGFβ Antibody License Agreement will remain in effect, on a country-by-country and
product-by-product  basis,  until  Novartis’  royalty  obligations  end.  The  Anti-TGFβ  Antibody  License  Agreement  contains  customary
termination  rights  relating  to  material  breach  by  either  party.  Novartis  also  has  a  unilateral  right  to  terminate  the Anti-TGFβ  Antibody
License Agreement on an antibody-by-antibody and country-by-country basis or in its entirety on one hundred eighty days’ notice.

The  Company  concluded  that  there  were  multiple  promised  goods  and  services  under  the  Anti-TGFβ  Antibody  License
Agreement, including the transfer of license, regulatory services and transfer of materials, process and know-how, which were determined
to represent one combined performance obligation. The Company recognized the entire upfront payment of $37.0 million as revenue in the
consolidated statement of comprehensive loss in 2015 as it had completed its performance obligations as of December 31, 2015.

The Company was eligible to receive up to a total of $480.0 million in development, regulatory and commercial milestones under
the  Anti-TGFβ  Antibody  License  Agreement.  During  the  year  ended  December  31,  2017,  Novartis  achieved  a  clinical  development
milestone  pursuant  to  the  Anti-TGFβ  Antibody  License  Agreement,  and  as  a  result,  the  Company  earned  a  $10.0  million  milestone
payment.

The Company concluded that the development and regulatory milestone payments are solely dependent on Novartis’ performance
and achievement of the specified events. The Company determined that it is not probable that a significant cumulative revenue reversal will
not occur in future periods for these future payments. Therefore, the remaining development and regulatory milestones are fully constrained
and excluded from the transaction price. Any consideration related to commercial milestones (including royalties) will be recognized when
the related sales occur as they were determined to relate predominantly to the licenses granted to Novartis and therefore, have also been
excluded from the transaction price. At the end of each reporting period, the Company will update its assessment of whether an estimate of
variable consideration is constrained and update the estimated transaction price accordingly.

The Company is also eligible to receive royalties on sales of licensed products, which are tiered based on sales levels and range
from a mid-single-digit percentage rate to up to a low double-digit percentage rate. Novartis’ obligation to pay royalties with respect to a
particular product and country will continue for the longer of the date of expiration of the last valid patent claim covering the product in
that country, or ten years from the date of the first commercial sale of the product in that country.

In  October  2020,  the  Company  earned  a  $25.0  million  milestone  upon  the  dosing  of  the  first  patient  in  Novartis’  first  NIS793
Phase 2 clinical trial. As specified under the terms of the Anti-TGFβ Antibody License Agreement, the Company received $17.7 million in
cash, and the remaining balance of $7.3 million was recognized as a reduction to the Company's debt obligation to Novartis.

In October 2021, the Company earned a $35.0 million milestone payment upon dosing of the first patient in Novartis’ first NIS793

Phase 3 clinical trial. The Company recognized $35.0 million as revenue from contracts with

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customers in the consolidated statement of operations and comprehensive (loss) income for the year ended December 31, 2021.

The Company is eligible to receive remaining milestones up to a total of $410.0 million under the Anti-TGFβ Antibody License

Agreement.

As of December 31, 2022 and 2021, there were no contract assets or contract liabilities related to this arrangement. None of the
costs to obtain or fulfill the contract were capitalized. No revenue was recognized related to this arrangement for the year ended December
31, 2022.

Novartis – Anti-IL-1β Antibody (VPM087)

On August  24,  2017,  the  Company  and  Novartis  entered  into  the  Gevokizumab  License Agreement  under  which  the  Company
granted to Novartis an exclusive, worldwide, royalty-bearing license to gevokizumab (“VPM087”), a novel anti-Interleukin-1 (“IL-1”) beta
allosteric monoclonal antibody and related know-how and patents. Under the terms of the Gevokizumab License Agreement, Novartis is
solely responsible for the development and commercialization of VPM087 and products containing VPM087.

On August 24, 2017, pursuant to a separate agreement (the “IL-1 Target License Agreement”), the Company granted to Novartis
non-exclusive  licenses  to  its  intellectual  property  covering  the  use  of  IL-1  beta  targeting  antibodies  in  the  treatment  and  prevention  of
cardiovascular disease and other diseases and conditions, and an option to obtain an exclusive license (the “Exclusivity Option”) to such
intellectual property for the treatment and prevention of cardiovascular disease.

Under the Gevokizumab License Agreement, the Company received total consideration of $30.0 million for the license and rights
granted  to  Novartis.  Of  the  total  consideration,  $15.7  million  was  paid  in  cash  and  $14.3  million  (equal  to  €12.0  million)  was  paid  by
Novartis,  on  behalf  of  the  Company,  to  settle  the  Company’s  outstanding  debt  with  Les  Laboratories  Servier  (“Servier”)  (the  “Servier
Loan”). In addition, Novartis extended the maturity date on the Company’s debt to Novartis. The Company also received $5.0 million cash
related to the sale of 539,131 shares of the Company’s common stock, at a purchase price of $9.2742 per share. The fair market value of the
common stock issued to Novartis was $4.8 million, based on the closing stock price of $8.93 per share on August 24, 2017, resulting in a
$0.2 million premium paid to the Company.

Based  on  the  achievement  of  pre-specified  criteria,  the  Company  is  eligible  to  receive  up  to  $438.0  million  in  development,
regulatory and commercial milestones under the Gevokizumab License Agreement. The Company is also eligible to receive royalties on
sales of licensed products, which are tiered based on sales levels and range from the high single-digits to mid teens. Under the IL-1 Target
License Agreement, the Company received an upfront cash payment of $10.0 million and is eligible to receive low single-digit royalties on
canakinumab sales in cardiovascular indications covered by the Company’s patents. Should Novartis exercise the Exclusivity Option, the
royalties on canakinumab sales will increase to the mid-single-digits.

Unless  terminated  earlier,  the  Gevokizumab  License Agreement  and  IL-1 Target  License Agreement  will  remain  in  effect,  on  a
country-by-country  and  product-by-product  basis,  until  Novartis’  royalty  obligations  end.  The  two  agreements  contain  customary
termination  rights  relating  to  material  breach  by  either  party.  Novartis  also  has  a  unilateral  right  to  terminate  the  Gevokizumab  License
Agreement  on  a  product-by-product  and  country-by-country  basis  or  in  its  entirety  on  six  months’  prior  written  notice  to  the  Company.
Under the IL-1 Target License Agreement, Novartis has a unilateral right to terminate the agreement on a product-by-product and country-
by-country basis or in its entirety upon a prior written notice.

The Gevokizumab License Agreement and IL-1 Target License Agreement were accounted for as one arrangement because they
were entered into at the same time in contemplation of each other. The Company concluded that there are multiple promised goods and
services  under  the  combined  arrangement,  including  the  transfer  of  license  to  IL-1  beta  targeting  antibodies,  and  the  transfer  of  license,
know-how, process, materials and inventory related to the VPM087 antibody, which were determined to represent two distinct performance
obligations. The Company determined that the

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Exclusivity Option is not an option with material right because the upfront payments to the Company were not negotiated to provide an
incremental discount for the future additional royalties upon exercise of the Exclusivity Option. Therefore, the Company concluded that the
Exclusivity Option is not a performance obligation. The additional royalties will be recognized as revenue when, and if, Novartis exercises
its option because the Company has no further performance obligations at that point.

At the inception of the arrangement, the Company determined that the transaction price under the arrangement was $40.2 million,
which consisted of the $25.7 million upfront cash payments, the $14.3 million Servier Loan payoff and the $0.2 million premium on the
sale of the common stock. The transaction price was allocated to the two performance obligations based on their standalone selling prices.
The Company determined that the nature of the two performance obligations is the right to use the licenses as they exist at the point of
transfer, which occurred when the transfer of materials, process and know-how, and filings to regulatory authority were completed. During
the year ended December 31, 2017, the Company recognized the entire transaction price of $40.2 million as revenue upon completion of
the delivery of the licenses and related materials, process and know-how and filings to regulatory authority.

The Company concluded that the development and regulatory milestone payments are solely dependent on Novartis’ performance
and achievement of specified events. The Company determined that it is not probable that a significant cumulative revenue reversal will not
occur in future periods for these future payments. Therefore, the development and regulatory milestones are fully constrained and excluded
from  the  transaction  price  until  the  respective  milestone  is  achieved.  Any  consideration  related  to  commercial  milestones  (including
royalties)  will  be  recognized  when  the  related  sales  occur  as  they  were  determined  to  relate  predominantly  to  the  licenses  granted  to
Novartis and therefore, have also been excluded from the transaction price. At the end of each reporting period, the Company will update
its assessment of whether an estimate of variable consideration is constrained and update the estimated transaction price accordingly.

As of December 31, 2022 and 2021, there were no contract assets or contract liabilities related to this arrangement and none of the
costs to obtain or fulfill the contract were capitalized. The Company did not recognize any revenue related to this arrangement during the
years ended December 31, 2022 and 2021.

Takeda

On November 1, 2006, the Company entered into the Takeda Collaboration Agreement with Takeda under which the Company

agreed to discover and optimize therapeutic antibodies against multiple targets selected by Takeda.

Under the terms of the Takeda Collaboration Agreement, the Company may receive additional milestone payments aggregating up
to $19.0 million relating to TAK-079 (mezagitamab) and TAK-169, and low single-digit royalties on future sales of all products subject to
this license. The Company’s right to milestone payments expires on the later of the receipt of payment from Takeda of the last amount to be
paid  under  the  agreement  or  the  cessation  by  Takeda  of  all  research  and  development  activities  with  respect  to  all  program  antibodies,
collaboration  targets  or  collaboration  products.  The  Company’s  right  to  royalties  expires  on  the  later  of  13.5  years  from  the  first
commercial  sale  of  each  royalty-bearing  discovery  product  or  the  expiration  of  the  last-to-expire  licensed  patent  (or  12  years  from  first
commercial sale if there is significant generic competition post patent-expiration).

In  February  2009,  the  Company  expanded  the  existing  collaboration  to  provide  Takeda  with  access  to  multiple  antibody
technologies, including a suite of research and development technologies and integrated information and data management systems. The
Company may receive milestones of up to $3.3 million per discovery product candidate and low single-digit royalties on future sales of all
antibody products subject to this license. The Company’s right to milestone payments expires on the later of the receipt of payment from
Takeda of the last amount to be paid under the agreement or the cessation by Takeda of all research and development activities with respect
to all program antibodies, collaboration targets or collaboration products. The Company’s right to royalties expires on the later of 10 years
from the first commercial sale of such royalty-bearing discovery product or the expiration of the last-to-expire licensed patent.

In November 2020, the first patient was dosed in Takeda’s Phase 2 study of mezagitamab and the Company earned a $2.0 million

milestone payment from Takeda.

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During the year ended December 31, 2022, the Company earned a development milestone pursuant to the Takeda Collaboration
Agreement  and  recognized  $0.8  million  as  revenue  from  contracts  with  customers  in  the  consolidated  statement  of  operations  and
comprehensive  (loss)  income.  The  Company  recognized  annual  license  fee  revenue  of  $0.1  million  from  Takeda  in  the  consolidated
statement of operations and comprehensive (loss) income for the each of the years ended December 31, 2022 and 2021.

As of December 31, 2022 and 2021, there were no contract assets or contract liabilities related to this arrangement and none of the
costs  to  obtain  or  fulfill  the  contract  were  capitalized.  The  Company  is  eligible  to  receive  remaining  milestones  up  to  a  total  of  $16.0
million under the Takeda Collaboration Agreement.

Rezolute

On December 6, 2017, the Company entered into a license agreement with Rezolute pursuant to which the Company granted an
exclusive global license to Rezolute to develop and commercialize X358 (now “RZ358”) products for all indications. The Company and
Rezolute  also  entered  into  a  common  stock  purchase  agreement  pursuant  to  which  Rezolute  agreed  to  issue  to  the  Company,  as
consideration for receiving the license for RZ358, a certain number of its common stock related to its future financing activities.

Under  the  terms  of  the  license  agreement,  Rezolute  is  responsible  for  all  development,  regulatory,  manufacturing  and
commercialization  activities  associated  with  RZ358  and  is  required  to  make  certain  development,  regulatory  and  commercial  milestone
payments to the Company of up to $232.0 million in the aggregate based on the achievement of pre-specified criteria. Under the license
agreement,  the  Company  is  also  eligible  to  receive  royalties  ranging  from  the  high  single-digits  to  the  mid-teens  based  upon  annual  net
sales of any commercial product incorporating RZ358.

The  Company  concluded  that  the  development  and  regulatory  milestone  payments  are  solely  dependent  on  Rezolute’s
performance and achievement of the specified events. The Company determined that it is not probable that a significant cumulative revenue
reversal  will  not  occur  in  future  periods  for  these  future  payments. Therefore,  the  remaining  development  and  regulatory  milestones  are
fully  constrained  and  excluded  from  the  transaction  price  until  the  respective  milestone  is  achieved.  Any  consideration  related  to
commercial  milestones  (including  royalties)  will  be  recognized  when  the  related  sales  occur  as  they  were  determined  to  relate
predominantly to the licenses granted to Rezolute and therefore, have also been excluded from the transaction price. At the end of each
reporting period, the Company will update its assessment of whether an estimate of variable consideration is constrained and update the
estimated transaction price accordingly.

Rezolute is obligated to take customary steps to advance RZ358, including using diligent efforts to commence the next clinical
study  for  RZ358  by  a  certain  deadline  and  to  meet  certain  spending  requirements  on  an  annual  basis  for  the  program  until  a  marketing
approval application for RZ358 is accepted by the FDA. Rezolute’s obligation to pay royalties with respect to a particular RZ358 product
and  country  will  continue  for  the  longer  of  the  date  of  expiration  of  the  last  valid  patent  claim  covering  the  product  in  that  country,  or
twelve years from the date of the first commercial sale of the product in that country. Rezolute’s future royalty obligations in the United
States will be reduced by 20% if the manufacture, use or sale of a licensed product is not covered by a valid XOMA patent claim, until such
a claim is issued.

Pursuant to the license agreement, XOMA is eligible to receive a low single-digit royalty on sales of Rezolute’s other non-RZ358
products from its current programs, including RZ402 which is in Phase 1 clinical testing. Rezolute’s obligation to pay royalties with respect
to a particular Rezolute product and country will continue for the longer of twelve years from the date of the first commercial sale of the
product in that country or for so long as Rezolute or its licensee is selling such product in such country, provided that any such licensee
royalty will terminate upon the termination of the licensee’s obligation to make payments to Rezolute based on sales of such product in
such country

The  license  agreement  contains  customary  termination  rights  relating  to  material  breach  by  either  party.  Rezolute  also  has  a
unilateral right to terminate the license agreement in its entirety on ninety days’ notice at any time. To the extent permitted by applicable
laws, the Company has the right to terminate the license agreement if Rezolute challenges the licensed patents.

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No  consideration  was  exchanged  upon  execution  of  the  arrangement.  In  consideration  for  receiving  the  license  for  RZ358,

Rezolute agreed to issue shares of its common stock and pay cash to the Company upon the occurrence of Rezolute’s financing activities.

The  license  agreement  was  subsequently  amended  in  2018,  2019  and  2020.  Pursuant  to  the  terms  of  the  license  agreement  as
amended,  the  Company  received  a  total  of  $6.0  million  upon  Rezolute’s  financing  and  $8.5  million  in  installment  payments  through
October  2020.  The  Company  also  received  161,861  shares  of  Rezolute’s  common  stock  (as  adjusted  for  the  1:50  reverse  stock  split  in
October 2020).

In January 2022, Rezolute dosed the last patient in its Phase 2b clinical trial for RZ358, which triggered a $2.0 million milestone

payment due to the Company pursuant to the Rezolute License Agreement.

The Company recognized $2.0 million and no revenue as revenue from contracts with customers in the consolidated statement of

operations and comprehensive (loss) income for the year ended December 31, 2022 and December 31, 2021, respectively.

As of December 31, 2022 and 2021, there were no contract assets or contract liabilities related to this arrangement. None of the

costs to obtain or fulfill the contract were capitalized.

Janssen Biotech

The Company and Janssen were parties to a license agreement which was terminated in 2017. In August 2019, the Company and
Janssen  entered  into  a  new  agreement  pursuant  to  which  the  Company  granted  a  non-exclusive  license  to  Janssen  to  develop  and
commercialize  certain  drug  candidates  under  the  XOMA  patents  and  know-how.  Under  the  new  agreement,  Janssen  made  a  one-time
payment of $2.5 million to XOMA. Additionally, for each drug candidate, the Company is entitled to receive milestone payments of up to
$3.0 million upon Janssen’s achievement of certain clinical development and regulatory approval events. Additional milestones may be due
for  drug  candidates  which  are  the  subject  of  multiple  clinical  trials.  Upon  commercialization,  the  Company  is  eligible  to  receive  0.75%
royalty on net sales of each product. Janssen’s obligation to pay royalties with respect to a particular product and country will continue until
the eighth-year-and-sixth-month anniversary of the first commercial sale of the product in such country. The new agreement will remain in
effect unless terminated by mutual written agreement of the parties.

The Company concluded that the new agreement should be accounted for separately from any prior arrangements with Janssen
and  that  the  license  grant  is  the  only  performance  obligation  under  the  new  agreement.  The  Company  recognized  the  entire  one-time
payment of $2.5 million as revenue for the year ended December 31, 2019 as it had completed its performance obligation.

The Company concluded that the development and regulatory milestone payments are solely dependent on Janssen’s performance
and  achievement  of  specified  events  and  thus  it  is  not  probable  that  a  significant  cumulative  revenue  reversal  will  not  occur  in  future
periods  for  these  future  payments.  Therefore,  the  development  and  regulatory  milestones  are  fully  constrained  and  excluded  from  the
transaction price until the respective milestone is achieved. Any consideration related to royalties will be recognized when the related sales
occur as they were determined to relate predominantly to the license granted to Janssen and therefore, have also been excluded from the
transaction  price.  At  the  end  of  each  reporting  period,  the  Company  will  update  its  assessment  of  whether  an  estimate  of  variable
consideration is constrained and update the estimated transaction price accordingly.

In May 2021, the Company earned a $0.5 million milestone from Janssen, upon dosing of the first patient in a Phase 3 clinical trial
evaluating  one  of  Janssen’s  biologic  assets.  In  December  2021,  the  Company  earned  a  $0.2  million  milestone  pursuant  to  its  agreement
with Janssen.

As of December 31, 2022 and 2021, there were no contract assets or contract liabilities related to this arrangement. None of the
costs  to  obtain  or  fulfill  the  contract  were  capitalized. The  Company  recognized  no  revenue  and  $0.7  million  as  revenue  from  contracts
with customers in the consolidated statement of operations and comprehensive (loss) income for the year ended December 31, 2022 and
2021, respectively.

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Affimed

In April 2021, the Company and Affimed entered into a contractual agreement, under which the Company is eligible to receive
payments from Affimed on potential future commercial sales related to three ICE molecules and preloaded natural killer cells containing
the ICE molecules. Additionally, the Company is eligible to receive a milestone upon the first product candidate in each program achieving
marketing approval.

The  Company  concluded  that  the  commercial  milestone  payments  are  solely  dependent  on  Affimed’s  performance  and
achievement of specified events. The Company determined that it is not probable that a significant cumulative revenue reversal will not
occur  in  future  periods  for  these  future  payments.  Therefore,  the  commercial  milestones  are  fully  constrained  and  excluded  from  the
transaction price until the respective milestone is achieved. Any consideration related to commercial milestones (including royalties) will
be  recognized  when  the  related  approvals  occur  and  therefore,  have  also  been  excluded  from  the  transaction  price. At  the  end  of  each
reporting period, the Company will update its assessment of whether an estimate of variable consideration is constrained and update the
estimated transaction price accordingly.

As of December 31, 2022 and 2021, there were no contract assets or contract liabilities related to this arrangement. None of the
costs to obtain or fulfill the contract were capitalized. No revenue was recognized related to this arrangement for the years ended December
31, 2022 or 2021.

Sale of Future Revenue Streams

On December 21, 2016, the Company entered into two royalty interest sale agreements (together, the “Royalty Sale Agreements”)
with HCRP. Under the first Royalty Sale Agreement, the Company sold its right to receive milestone payments and royalties on future sales
of products subject to a License Agreement, dated August 18, 2005, between XOMA and Wyeth Pharmaceuticals (subsequently acquired
by Pfizer) for an upfront cash payment of $6.5 million, plus potential additional payments totaling $4.0 million in the event three specified
net sales milestones were met in 2017, 2018 and 2019. Based on actual sales, 2017, 2018, and 2019 sales milestones were not achieved.
Under the second Royalty Sale Agreement entered into in December 2016, the Company sold its right to receive certain royalties under an
Amended and Restated License Agreement dated October 27, 2006 between XOMA and Dyax Corp. for a cash payment of $11.5 million.

The Company classified the proceeds received from HCRP as unearned revenue, to be recognized as revenue under the units-of-
revenue  method  over  the  life  of  the  license  agreements  because  of  the  Company’s  limited  continuing  involvement  in  the  Acquisition
Agreements.  Such  limited  continuing  involvement  is  related  to  the  Company’s  undertaking  to  cooperate  with  HCRP  in  the  event  of
litigation or a dispute related to the license agreements. Because the transaction was structured as a non-cancellable sale, the Company does
not have significant continuing involvement in the generation of the cash flows due to HCRP and there are no guaranteed rates of return to
HCRP, the Company recorded the total proceeds of $18.0 million as unearned revenue recognized the under units-of-revenue method. The
Company allocated the total proceeds between the two Royalty Sale Agreements based on the relative fair value of expected payments to
be  made  to  HCRP  under  the  license  agreements.  The  unearned  revenue  is  being  recognized  as  revenue  over  the  life  of  the  underlying
license agreements under the "units-of-revenue" method. Under this method, amortization for a reporting period is calculated by computing
a ratio of the allocated proceeds received from HCRP to the payments expected to be made by the licensees to HCRP over the term of the
Acquisition Agreements,  and  then  applying  that  ratio  to  the  period’s  cash  payment.  During  the  third  quarter  of  2018,  the  Shire  product
underlying  the  Dyax  Corp.  license  agreement  was  approved,  and  the  Company  began  recognizing  revenue  under  the  units-of-revenue
method due to sales of the approved product.

The Company recognized $1.9 million and $1.6 million as revenue under the units-of-revenue method under these arrangements
during  the  years  ended  December  31,  2022  and  2021,  respectively. As  of  December  31,  2021,  the  Company  classified  $1.6  million  and
$11.7 million as current and non-current unearned revenue recognized under the units-of-revenue method, respectively. As of December 31,
2022,  the  current  and  non-current  portion  of  the  remaining  unearned  revenue  recognized  under  the  units-of-revenue  method  was  $1.9
million and $9.6 million, respectively.

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5. Royalty and Commercial Payment Purchase Agreements

The balance of short-term royalty and commercial payment receivables was $2.4 million as of December 31, 2022. There was no
balance  of  short-term  royalty  and  commercial  payment  receivables  as  of  December  31,  2021.  The  balance  of  long-term  royalty  and
commercial payment receivables was $63.7 million and $69.1 million as of December 31, 2022 and 2021, respectively.

Agenus Royalty Purchase Agreement

On September 20, 2018, the Company entered into the Agenus RPA, pursuant to which the Company acquired the right to receive
33% of the future royalties on six Incyte Europe S.a.r.l. (“Incyte”) immuno-oncology assets, currently in development, due to Agenus from
Incyte  (net  of  certain  royalties  payable  by  Agenus  to  a  third  party)  and  10%  of  all  future  developmental,  regulatory  and  commercial
milestones related to these assets. However, the Company did not have a right to the expected near-term milestone associated with the entry
of INCAGN2390 (anti-TIM-3) into its Phase 1 clinical trial. The future royalties due to Agenus from Incyte are based on low single to mid
teen digit percentage of applicable net sales.

In  addition,  the  Company  acquired  the  right  to  receive  33%  of  the  future  royalties  on  MK-4830,  an  immuno-oncology  product
currently in clinical development, due to Agenus from Merck and 10% of all future developmental, regulatory and commercial milestones
related  to  this  asset.  The  future  royalties  due  to Agenus  from  Merck  are  based  on  low  single-digit  percentage  of  applicable  net  sales.
Pursuant to the Agenus RPA, the Company’s share in future potential development, regulatory and commercial milestones is up to $59.5
million. There is no limit on the amount of future royalties on sales that the Company may receive under the agreements.

Under the terms of the Agenus RPA, the Company paid Agenus $15.0 million. At the inception of the agreement, the Company

recorded $15.0 million as long-term royalty receivables in the consolidated balance sheets.

In  November  2020,  MK-4830  advanced  into  Phase  2  development,  and  Agenus  earned  a  $10.0  million  clinical  development
milestone  under  its  license  agreement  with  Merck,  of  which  the  Company  earned  $1.0  million.  In  accordance  with  the  cost  recovery
method, the $1.0 million milestone received was recorded as a direct reduction of the recorded long-term royalty receivable balance.

The  Company  continues  to  assess  that  no  further  payments  are  probable  to  be  received  under  this  agreement  in  the  near  term.
Under the cost recovery method, the Company does not expect to recognize any income related to milestones and royalties received until
the purchase price has been fully collected. The Company performed its impairment assessments and no impairment indicators have been
identified. Accordingly, no impairment was recorded as of December 31, 2022.

Bioasis Royalty Purchase Agreement

On  February  25,  2019,  the  Company  entered  into  the  Bioasis  RPA,  pursuant  to  which  the  Company  acquired  potential  future
milestone and royalty rights from Bioasis for product candidates that are being developed pursuant to a license agreement between Bioasis
and Prothena Biosciences Limited. In addition, the Company was granted options to purchase a 1% royalty right on the next two license
agreements  entered  into  between  Bioasis  and  third-party  licensees  subject  to  certain  payments  and  conditions  as  well  as  a  right  of  first
negotiation  on  the  purchase  of  royalty  rights  on  subsequent  Bioasis  license  agreements  with  third  parties.  Upon  exercise  of  the  option
related to the second license agreement executed by Bioasis, the Company may be obligated to pay up to $0.3 million per licensed product.
Upon exercise of the option related to the third license agreement executed by Bioasis, the Company may be obligated to pay up to $0.4
million per licensed product.

Under the terms of the Bioasis RPA, the Company paid $0.3 million and will make contingent future cash payments of up to $0.2

million to Bioasis as the licensed product candidates reach certain development milestones (the “Bioasis Contingent Consideration”).

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At the inception of the agreement, the Company recorded $0.4 million as long-term royalty receivables in its consolidated balance
sheet, including the estimated fair value of the Bioasis Contingent Consideration of $0.1 million. Future changes in the estimated fair value
of the contingent consideration will be recognized in the other income (expense), net line item of the consolidated statement of operations
and comprehensive (loss) income. As of December 31, 2022, there was no change in the fair value of the contingent consideration from its
initial value and no amounts were paid during the year ended December 31, 2022. The Company continues to assess that no payments are
probable to be received under this agreement in the near term. Under the cost recovery method, the Company does not expect to recognize
any  income  related  to  milestones  and  royalties  received  until  the  purchase  price  has  been  fully  collected.  The  Company  performed  its
quarterly impairment assessment and no impairment indicators were identified. Accordingly, no impairment was recorded as of December
31, 2022.

On  November  2,  2020,  the  Company  entered  into  the  Second  Bioasis  RPA,  pursuant  to  which  the  Company  acquired  potential
future milestone and other payments, and royalty rights from Bioasis for product candidates that are being developed pursuant to a research
collaboration  and  license  agreement  between  Bioasis  and  Chiesi.  The  Company  paid  Bioasis  $1.2  million  upon  closing  of  the  Second
Bioasis RPA for the purchased rights.

At  the  inception  of  the  Second  Bioasis  RPA,  the  Company  recorded  $1.2  million  as  long-term  royalty  receivables  in  its
consolidated balance sheet. The Company continues to assess that no payments are probable to be received under the Second Bioasis RPA
in the near term. Under the cost recovery method, the Company does not expect to recognize any income related to milestones and other
payments  until  the  purchase  price  has  been  fully  collected.  The  Company  performed  its  quarterly  impairment  assessment  and  no
impairment indicators were identified. Accordingly, no impairment was recorded as of December 31, 2022.

Aronora Royalty Purchase Agreement

On  April  7,  2019,  the  Company  entered  into  the  Aronora  RPA  which  closed  on  June  26,  2019.  Under  the  Aronora  RPA,  the
Company  acquired  the  right  to  receive  future  royalties  and  a  portion  of  upfront,  milestone,  and  option  payments  (the  “Non-Royalties”)
related  to  five  anti-thrombotic  hematology  drug  candidates.  Three  candidates  were  subject  to  Aronora’s  collaboration  with  Bayer  (the
“Bayer Products”), including one which was subject to an exclusive license option by Bayer. The Company will receive 100% of future
royalties  and  10%  of  future  Non-Royalties  economics  from  these  Bayer  Products.  The  other  two  candidates  are  unpartnered  (the  “non-
Bayer  Products”)  for  which  the  Company  will  receive  low  single-digit  percentage  of  net  sales  and  10%  of  Non-Royalties.  The  future
payment  percentage  for  Non-Royalties  will  be  reduced  from  10%  to  5%  upon  the  Company’s  receipt  of  two  times  the  total  cumulative
amount of consideration paid by the Company to Aronora. In July 2020, Bayer elected to not exercise its option on the third Bayer Product
and that product is now subject to the same economics as the non-Bayer Products.

Under the terms of the Aronora RPA, the Company paid Aronora a $6.0 million upfront payment at the close of the transaction.
The  Company  financed  $3.0  million  of  the  upfront  payment  with  a  term  loan  under  its  Loan  and  Security Agreement  with  SVB.  The
Company was required to make a contingent future cash payment of $1.0 million for each of the three Bayer Products that were active on
September 1, 2019 (up to a total of $3.0 million, the “Aronora Contingent Consideration”). Pursuant to the Aronora RPA, if the Company
receives $250.0 million in cumulative royalties on net sales per product, the Company will be required to pay associated tiered milestone
payments to Aronora in an aggregate amount of up to $85.0 million per product (the “Royalty Milestones”). The Royalty Milestones are
paid  based  upon  various  royalty  tiers  prior  to  reaching  $250.0  million  in  cumulative  royalties  on  net  sales  per  product.  Royalties  per
product in excess of $250.0 million are retained by the Company.

At the inception of the agreement, the Company recorded $9.0 million as long-term royalty receivables in its consolidated balance
sheet, including the estimated fair value of the Aronora Contingent Consideration of $3.0 million. In September 2019, the Company paid
the $3.0 million contingent consideration to Aronora. As the Company receives royalties from Aronora for a product, the Company will
recognize the liability for future Royalty Milestones for such product when probable and estimable. The Company continues to assess that
no payments are probable to be received under this agreement in the near term.

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Under  the  cost  recovery  method,  the  Company  does  not  expect  to  recognize  any  income  related  to  milestones  and  royalties
received until the purchase price has been fully collected. The Company performed its quarterly impairment assessment and no impairment
indicators were identified. Accordingly, no impairment was recorded as of December 31, 2022. 

Palobiofarma Royalty Purchase Agreement

On September 26, 2019, the Company entered into the Palo RPA, pursuant to which the Company acquired the rights to potential
royalty payments in low single-digit percentages of aggregate net sales associated with six drug candidates in various clinical development
stages, targeting the adenosine pathway with potential applications in solid tumors, non-Hodgkin’s lymphoma, asthma/chronic obstructive
pulmonary  disease,  ulcerative  colitis,  idiopathic  pulmonary  fibrosis,  lung  cancer,  psoriasis  and  nonalcoholic  steatohepatitis  and  other
indications (the “Palo Licensed Products”) that are being developed by Palo. Novartis is a development partner on NIR178, one of the Palo
Licensed Products, and NIR178 is being developed pursuant to a license agreement between Palo and Novartis.

Under the terms of the Palo RPA, the Company paid Palo a $10.0 million payment at the close of the transaction, which occurred

simultaneously upon parties’ entry into the Palo RPA on September 26, 2019.

At  the  inception  of  the  agreement,  the  Company  recorded  $10.0  million  as  long-term  royalty  receivables  in  its  consolidated
balance sheet. The Company continues to assess that no payments are probable to be received under this agreement in the near term. Under
the cost recovery method, the Company does not expect to recognize any income related to royalties received until the purchase price has
been  fully  collected.  The  Company  performed  its  quarterly  impairment  assessment  and  no  impairment  indicators  were  identified.
Accordingly, no impairment was recorded as of December 31, 2022.

Viracta Royalty Purchase Agreement

On  March  22,  2021,  the  Company  entered  into  the Viracta  RPA,  pursuant  to  which  the  Company  acquired  the  right  to  receive
future  royalties,  milestones,  and  other  payments  related  to  two  clinical-stage  drug  candidates  for  $13.5  million.  The  first  candidate,
DAY101  (pan-RAF  kinase  inhibitor),  is  being  developed  by  Day  One  Biopharmaceuticals,  and  the  second  candidate,  vosaroxin
(topoisomerase II inhibitor), is being developed by Denovo Biopharma. The Company acquired the right to receive (i) up to $54.0 million
in  potential  milestones,  potential  royalties  on  sales,  if  approved,  and  other  payments  related  to  DAY101,  excluding  up  to  $20.0  million
consideration  retained  by  Viracta,  and  (ii)  up  to  $57.0  million  in  potential  regulatory  and  commercial  milestones  and  high  single-digit
royalties on sales related to vosaroxin, if approved.

At  the  inception  of  the  Viracta  RPA,  the  Company  recorded  $13.5  million  as  long-term  royalty  receivables  in  its  consolidated
balance  sheet.  No  payments  are  probable  to  be  received  under  the  Viracta  RPA  in  the  near  term.  Under  the  cost  recovery  method,  the
Company does not expect to recognize any income related to royalties, milestones and other payments until the purchase price has been
fully collected. The Company performed its quarterly impairment assessment and no impairment indicators were identified. Accordingly,
no impairment was recorded as of December 31, 2022.

Kuros Royalty Purchase Agreement

On July 14, 2021, the Company entered into the Kuros RPA, pursuant to which the Company acquired the rights to 100% of the
potential future royalties from commercial sales, which are tiered from high single-digit to low double-digits, and up to $25.5 million in
pre-commercial  milestone  payments  associated  with  an  existing  license  agreement  related  to  Checkmate  Pharmaceuticals’  vidutolimod
(CMP-001), a Toll-like receptor 9 agonist, packaged in a virus-like particle, for an upfront payment of $7.0 million. The Company may pay
up to an additional $142.5 million to Kuros in sales-based milestones.

At  the  inception  of  the  Kuros  RPA,  the  Company  recorded  $7.0  million  as  long-term  royalty  receivables  in  its  consolidated
balance sheet. Under the cost recovery method, the Company does not expect to recognize any income related to royalties, milestones and
other payments until the purchase price has been fully collected.

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In May 2022, Regeneron completed its acquisition of Checkmate Pharmaceuticals resulting in a $5.0 million milestone payment to
Kuros.  Pursuant to the Kuros RPA, the Company is entitled to 50% of the milestone payment, which was received by XOMA in July 2022.
In accordance with the cost recovery method, the $2.5 million milestone received was recorded as a direct reduction of the recorded long-
term royalty receivable balance. As of December 31, 2022, no payments are probable to be received under the Kuros RPA in the near term.

The  Company  performed  its  quarterly  impairment  assessment  and  no  impairment  indicators  were  identified.  Accordingly,  no

impairment was recorded as of December 31, 2022.

Affitech Commercial Payment Purchase Agreement

On October 6, 2021, the Company entered into the Affitech CPPA, pursuant to which, the Company purchased a future stream of
commercial payment rights to Roche’s faricimab from Affitech for an upfront payment of $6.0 million. The Company is eligible to receive
0.50%  of  future  net  sales  of  faricimab  for  a  ten-year  period  following  the  first  commercial  sales  in  each  applicable  jurisdiction.  The
Company may pay up to an additional $20.0 million based on the achievement of certain regulatory and sales milestones. At the inception
of  the  Affitech  CPPA,  the  Company  recorded  $14.0  million  as  long-term  royalty  receivables  which  includes  the  $6.0  million  upfront
payment  and  $8.0  million  in  regulatory  milestones  in  its  consolidated  balance  sheet.  The  Company  concluded  the  regulatory  milestone
payments of $8.0 million met the definition of a derivative under ASC 815 and should be accounted at fair value and recorded as a current
liability  at  the  inception  of  the  transaction.  Therefore,  the  regulatory  milestone  payments  were  recorded  as  contingent  liabilities  in  its
consolidated balance sheet. The Company concluded the sales-based milestone payments of $12.0 million do not meet the definition of a
derivative under ASC 815 and a liability will be recognized when probable and estimable.

In  January  2022,  Genentech,  a  member  of  the  Roche  group,  received  approval  from  the  FDA  to  commercialize  VABYSMO
(faricimab-svoa) for the treatment of wet, or neovascular, age-related macular degeneration and diabetic macular edema. Pursuant to the
Affitech CPPA, the Company paid Affitech a $5.0 million milestone tied to these U.S. marketing approvals.

In September 2022, in connection with Roche receiving approval from the European Commission to commercialize VABYSMO
for  the  treatment  of  neovascular  or  ‘wet’  age-related  macular  degeneration  and  visual  impairment  due  to  diabetic  macular  edema,  the
Company made a $3.0 million milestone payment to Affitech pursuant to the terms of the Affitech CPPA. As a result of the EC Approval,
XOMA is eligible to receive a 0.5% commercial payment stream for ten years from the first commercial sale of VABYSMO in Europe.

In  August  2022,  the  Company  received  $0.5  million  from  Roche  representing  the  first  commercial  payment  for  sales  of
VABYSMO during the first six months of 2022. In accordance with the cost recovery method, the $0.5 million received was recorded as a
direct  reduction  of  the  long-term  royalty  receivable  balance.  In  February  2023,  the  Company  received  $2.4  million,  representing  its
commercial payment stream from sales of VABYSMO during the last six months of 2022. The payment amount was reclassified from long-
term to short-term royalty and commercial payment receivables in the Company’s consolidated balance sheet as of December 31, 2022.
Based upon limited available information, the Company is unable to reasonably estimate future net sales and the commercial payments to
be  received  during  the  year  ended  December  31,  2023  and,  as  such,  no  additional  amounts  are  reflected  as  short-term  royalty  and
commercial payment receivables.

Under  the  cost  recovery  method,  the  Company  does  not  expect  to  recognize  any  income  related  to  future  commercial  payment
receipts until the purchase price has been fully collected.  The Company performed its quarterly impairment assessment and no impairment
indicators were identified. Accordingly, no impairment was recorded as of December 31, 2022.

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The  following  table  summarizes  the  royalty  receivable  activities  during  the  years  ended  December  31,  2022  and  2021  (in

thousands):

Balance at January 1, 2021

Acquisition of royalty and commercial payment rights:

Viracta
Kuros
Affitech

Balance at December 31, 2021

Receipt of royalty and commercial payments

Kuros
Affitech

Reclassification to short-term royalty and commercial payment receivable

Affitech

Balance at December 31, 2022

6. Fair Value Measurements

Short-Term

Long-Term

     $

— $

34,575

—  
—  
—
— $

—
—

2,366
2,366 $

13,500
7,000
14,000
69,075

(2,500)
(526)

(2,366)
63,683

$

$

The Company records its financial assets and liabilities at fair value. The carrying amounts of certain of the Company’s financial
instruments,  including  cash,  trade  receivables,  net  and  accounts  payable,  approximate  their  fair  value  due  to  their  short  maturities.  Fair
value is defined as the exchange price that would be received from selling an asset or paid to transfer a liability in an orderly transaction
between market participants at the measurement date. The accounting guidance for fair value establishes a framework for measuring fair
value  and  a  fair  value  hierarchy  that  prioritizes  the  inputs  used  in  valuation  techniques.  The  accounting  standard  describes  a  fair  value
hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to
measure fair value which are the following:

Level 1 – Observable inputs, such as unadjusted quoted prices in active markets for identical assets or liabilities.

Level  2  –  Observable  inputs,  either  directly  or  indirectly,  other  than  quoted  prices  in  active  markets  for  identical  assets  or
liabilities, such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active or
other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or
liabilities.

Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the
assets or liabilities; therefore, requiring an entity to develop its own valuation techniques and assumptions.

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The following tables set forth the Company’s fair value hierarchy for its financial assets and liabilities measured at fair value on a

recurring basis as follows (in thousands):

Assets:
Cash equivalents:

Money market funds
Total cash equivalents

Equity securities

Total financial assets

Liabilities:

Contingent consideration under RPAs and CPPAs

Assets:

Equity securities

Liabilities:

Contingent consideration under RPAs and CPPAs

Equity Securities

Fair Value Measurements at December 31, 2022 Using:

Quoted Prices in
Active Markets for
Identical Assets
(Level 1)

Significant Other
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

Total

$

$

$

$

$

30,334
30,334
335
30,669

$

$

— $
—
—
— $

— $
—
—
— $

30,334
30,334
335
30,669

— $

— $

75

$

75

Fair Value Measurements at December 31, 2021 Using:

Quoted Prices in
Active Markets for
Identical Assets
(Level 1)

Significant Other
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

Total

774

$

— $

— $

774

— $

— $

8,075

$

8,075

The equity securities consisted of an investment in Rezolute’s common stock and are classified on the consolidated balance sheets
as current assets as of December 31, 2022 and 2021. The equity securities are revalued each reporting period with changes in fair value
recorded in the other income (expense), net line item of the consolidated statements of operations and comprehensive (loss) income. As of
December 31, 2022 and 2021, the Company valued the equity securities using the closing price for Rezolute’s common stock traded on the
Nasdaq Stock Market of $2.07 and $4.78, respectively. The inputs that were used to calculate the fair value of the equity securities were
observable prices in active markets and therefore were classified as a Level 1 fair value measurement.

Contingent Consideration

The  estimated  fair  value  of  the  contingent  consideration  liability  at  the  inception  of  the  Bioasis  RPA  represents  the  future
consideration  that  is  contingent  upon  the  achievement  of  specified  development  milestones  for  a  product  candidate.  The  fair  value
measurement is based on significant Level 3 inputs such as anticipated timelines and probability of achieving development milestones of
each licensed product candidate.

The  estimated  fair  value  of  the  contingent  consideration  liability  at  the  inception  of  the Affitech  CPPA  represented  the  future
consideration  that  was  contingent  upon  the  achievement  of  specified  regulatory  milestones.  The  fair  value  measurement  was  based  on
significant  Level  3  inputs  such  as  anticipated  timelines  and  probability  of  achieving  regulatory  milestones.  During  the  year  ended
December 31, 2022, the estimated fair value of the contingent consideration recorded pursuant to the Affitech CPPA decreased from $8.0
million to zero after the Company paid Affitech a total of $5.0 million for milestones tied to the achievement of U.S. marketing approvals
in January 2022 and $3.0 million for milestones tied to the achievement of EC Approvals in September 2022 (Note 5).

Changes in the fair value of the liability for contingent consideration will be recorded in the other income (expense), net line item

of the consolidated statements of operations and comprehensive (loss) income until settlement. As

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of December 31, 2022, there were no changes in the estimated fair value of the contingent consideration recorded pursuant to the Bioasis
RPA from the initial value of $0.1 million.  

7. Lease Agreement

The  Company  leases  one  facility  in  Emeryville,  California  under  an  operating  lease  that  expires  in  February  2023.  As  of
December  31,  2022,  the  total  net  lease  liability  from  January  2023  until  expiration  of  the  lease  was  $34,000.    In  January  2023,  the
Company amended the lease to extend the lease period through July 2023 (Note 14).

The following table summarizes the cost components of the Company’s operating lease for the years ended December 31, 2022

and 2021, respectively (in thousands):

Lease costs:
Operating lease cost
Variable lease cost (1)
Total lease costs

Year Ended December 31, 

2022

2021

$

$

177  
12  

189

$

$

177
8
185

(1) Under  the  terms  of  the  lease  agreement,  the  Company  is  also  responsible  for  certain  variable  lease  payments  that  are  not
included in the measurement of the lease liability. Variable lease payments include non-lease components such as common
area maintenance fees.

The  following  information  represents  supplemental  disclosure  for  the  statement  of  cash  flows  related  to  operating  leases  (in

thousands):

Cash paid for amounts included in the measurement of lease liabilities

Operating cash flows under operating leases

Year Ended December 31, 

2022

2021

$

202 $

196

The present value assumptions used in calculating the present value of the lease payments for the Company’s operating lease as of

December 31, 2022 and 2021 were as follows:

Weighted-average remaining lease term
Weighted-average discount rate

8. Income Taxes

December 31, 
2022
0.17 years

December 31, 
2021
1.17 years

5.51 %

5.51 %

The Company has pre-tax book loss of $17.1 million and pre-tax book income of $15.9 million for the years ended December 31,
2022 and 2021, respectively.  The Company had a $15,000 income tax benefit and $0.1 million income tax expense for the years ended
December 31, 2022 and 2021, respectively.  

The (benefit) provision for income taxes, all classified as current, consists of the following (in thousands):

Federal
State

Total

Year Ended December 31, 

2022

2021

$

$

(15)
$
—  
$
(15)

91
—
91

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Reconciliation  between  the  tax  provision  computed  at  the  federal  statutory  income  tax  rate  and  the  Company’s  actual  effective

income tax rate is as follows:

Federal tax at statutory rate
Stock compensation and other permanent differences
Federal orphan drug credit
Tax benefit related to net operating loss carryforward utilization
Valuation allowance

Total

Year Ended December 31, 
2021

2022

21 %  
(1)%  
— %  
— %  
(20)%  
— %  

21 %
9 %
(2)%
(11)%
(16)%
1 %

The significant components of net deferred tax assets at December 31, 2022 and 2021 were as follows (in thousands):

Capitalized research and development expenses
Net operating loss carryforwards
Research and development and other tax credit carryforwards
Stock compensation
Unearned revenue
Other

Total deferred tax assets

Valuation allowance

Net deferred tax assets

December 31, 

$

$

2022

4,732
23,974
13,176
4,715
2,408
1,324
50,329
(50,329)

$

— $

2021

7,822
17,657
13,125
4,778
2,817
807
47,006
(47,006)
—

The net increase (decrease) in the valuation allowance was $3.3 million and $(4.6) million, for the years ended December 31, 2022

and 2021, respectively.

Accounting standards provide for the recognition of deferred tax assets if realization of such assets is more likely than not. Based
upon  the  weight  of  available  evidence,  which  includes  the  Company’s  four  sources  of  taxable  income  including  historical  operating
performance  and  the  repeal  of  NOL  carryback,  the  Company  has  determined  that  total  deferred  tax  assets  should  be  fully  offset  by  a
valuation allowance.

Based on an analysis under Section 382 of the Internal Revenue Code (which subjects the amount of pre-change NOLs and certain
other pre-change tax attributes that can be utilized to annual limitations), the Company experienced an ownership change in February 2017
which  substantially  limits  the  future  use  of  its  pre-change  NOLs  and  certain  other  pre-change  tax  attributes  per  year. The  Company  has
excluded the related tax attributes that will expire as a result of the annual limitations in the deferred tax assets as of December 31, 2022
and  2021. To  the  extent  that  the  Company  does  not  utilize  its  carryforwards  within  the  applicable  statutory  carryforward  periods,  either
because of Section 382 limitations or the lack of sufficient taxable income, the carryforwards will expire unused.

As of December 31, 2022, the Company had federal NOL carry-forwards of approximately $108.8 million and state NOL carry-
forwards of approximately $20.9 million to offset future taxable income. $13.6 million of federal NOL carryforwards will begin to expire
in 2036 and the remainder may be carried forward indefinitely. The state NOL carryforwards will begin to expire in 2033. The Company
had  federal  orphan  credit  of  $2.0  million  which  if  not  utilized  will  expire  in  2037.  The  Company  also  had  $19.8  million  of  California
research and development tax credits which have no expiration date.

Under the 2017 Tax Cuts and Jobs Act, as modified by the federal tax law changes enacted in March 2020, federal NOLs incurred

in tax years beginning after December 31, 2017 may be carried forward indefinitely, but, for taxable years

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beginning after December 31, 2020, the deductibility of such federal NOLs may only be utilized to offset 80% of taxable income annually.  

One of the provisions under the 2017 Tax Cuts and Jobs Act that became effective in tax years beginning after December 31, 2021
required  the  capitalization  and  amortization  of  research  and  experimental  expenditures.   The  change  in  this  US  tax  law  did  not  have  an
impact on the Company's consolidated financial statements. The Company will continue to evaluate the impact of this tax law change on
future periods.

On August 16, 2022, President Biden signed the Inflation Reduction Act of 2022 (the “Inflation Act”) into law. The Inflation Act
contains certain tax measures, including a corporate alternative minimum tax of 15% on some large corporations and an excise tax of 1%
on corporate stock buy-backs. The various provisions of the Inflation Act did not have an impact on the Company’s consolidated financial
statements and related notes.

The  Company  files  income  tax  returns  in  the  U.S.  federal  jurisdiction  and  various  states.  The  Company’s  federal  income  tax
returns for tax years 2019 and beyond remain subject to examination by the Internal Revenue Service. The Company’s state income tax
returns for tax years 2018 and beyond remain subject to examination by state tax authorities. In addition, all of the NOLs and research and
development credit carryforwards that may be used in future years are still subject to adjustment.

The following table summarizes the Company’s activity related to its unrecognized tax benefits (in thousands):

Year Ended December 31, 

2022

2021

Balance at January 1
Increase related to current year tax position
Increase related to prior year tax position
Balance at December 31

$

$

5,938

$
—  
—  
$

5,938

5,938
—
—
5,938

As of December 31, 2022, the Company had a total of $5.9 million of gross unrecognized tax benefits, none of which would affect
the effective tax rate upon realization as the Company currently has a full valuation allowance against its deferred tax assets. The reversal
of related deferred tax assets will be offset by a valuation allowance, should any of these uncertain tax positions be favorably settled in the
future.

The Company does not expect its unrecognized tax benefits to change significantly over the next twelve months. The Company
will recognize interest and penalties accrued on any unrecognized tax benefits as a component of income tax expense. Through December
31, 2022, the Company has not accrued interest or penalties related to uncertain tax positions.

9. Stock Based Compensation and Other Benefit Plans

The Company may grant qualified and non-qualified stock options, common stock and other stock-based awards under various
plans to directors, officers, employees and other individuals. Stock options are granted at exercise prices of not less than the fair market
value of the Company’s common stock on the date of grant. Additionally, the Company has an ESPP that allows employees to purchase
Company shares at a purchase price equal to 85% of the lower of the fair market value of the Company’s common stock on the first trading
day of the offering period or on the last day of the offering period.

Employee Stock Purchase Plan

In May 2015, the Company’s stockholders approved the 2015 Employee Stock Purchase Plan (the “2015 ESPP”), which replaced
the  Company’s  legacy  1998  ESPP.  Under  the  2015  ESPP,  the  Company  reserved  15,000  shares  of  common  stock  for  issuance  as  of  its
effective date of July 1, 2015, subject to adjustment in the event of a stock split, stock dividend, combination or reclassification or similar
event.  The  2015  ESPP  allows  eligible  employees  to  purchase  shares  of  the  Company’s  common  stock  at  a  discount  through  payroll
deductions of up to 10% of their eligible compensation, subject

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to any plan limitations. The 2015 ESPP provides for six-month offering periods ending on May 31 and November 30 of each year. At the
end of each offering period, employees are able to purchase shares at 85% of the lower of the fair market value of the Company’s common
stock on the first trading day of the offering period or on the last day of the offering period.

In  February  2017,  the  Compensation  Committee  and  the  Board  of  Directors  adopted,  and  in  May  2017,  the  Company’s
stockholders approved, an amendment to the Company’s 2015 ESPP. The amendment (a) increased by 250,000 the shares of common stock
(from 15,000 shares to a total of 265,000 shares) available for issuance under the 2015 ESPP; and (b) increased the maximum number of
shares of common stock an employee may purchase in any offering period to 2,500. As of December 31, 2022, the Company had 230,937
remaining authorized shares available for purchase under the ESPP.

During  the  years  ended  December  31,  2022  and  2021,  employees  purchased  6,090  and  2,225  shares  of  common  stock,

respectively, under the 2015 ESPP.

Deferred Savings Plan

Under section 401(k) of the Internal Revenue Code of 1986, the Board of Directors adopted, effective June 1, 1987, a tax-qualified
deferred compensation plan for employees of the Company. Participants may make contributions which defer up to 50% of their eligible
compensation  per  payroll  period,  up  to  a  maximum  for  2022  and  2021  of  $20,500  and  $19,500,  respectively  (or  $27,000  and  $26,000,
respectively, for employees over 50 years of age). The Company may, at its sole discretion, make contributions each plan year, in cash or in
shares of the Company’s common stock, in amounts which match up to 50% of the salary deferred by the participants. The expense related
to  these  contributions  was  $0.1  million  for  the  years  ended  December  31,  2022  and  2021,  and  100%  was  paid  in  common  stock  for
each year. The Company applies shares from plan forfeitures of terminated employees toward the Company’s matching contribution.  

Stock Option Plans

In  May  2010,  the  Compensation  Committee  and  Board  of  Directors  adopted,  and  in  July  2010  the  Company’s  stockholders
approved  the  2010  Plan.  The  2010  Plan  was  amended  in  2016,  2017  and  2019  to  (a)  increase  the  number  of  shares  of  common  stock
issuable under the 2010 Plan; (b) increase the number of shares of common stock issuable under the 2010 Plan as incentive stock options;
and (c) extend the term of the 2010 Plan to April 1, 2029.

From  the  2010  Plan,  the  Company  grants  stock  options  to  eligible  employees,  consultants  and  directors.  Stock-based  awards
granted under the 2010 Plan may be exercised when vested and generally expire ten years from the date of the grant or three months from
the  date  of  termination  of  employment  (longer  in  case  of  death,  certain  retirements  or  subject  to  certain  terminations  pursuant  to  the
Retention Plan).

As of December 31, 2022, the Company had 192,964 shares available for grant under the 2010 Plan. As of December 31, 2022,

options to purchase 2,025,542 shares of common stock were outstanding under the 2010 Plan.

Stock Options

Stock options generally vest monthly over three years for employees and one year for directors. Stock options held by employees
who qualify for retirement age (defined as employees that are a minimum of 55 years of age and the sum of their age plus years of full-time
employment with the Company exceeds 70 years) vest on the earlier of scheduled vest date or the date of retirement.

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Stock Option Plans Summary

The following table summarizes the Company’s stock option activity for the year ended December 31, 2022.

Outstanding at January 1, 2022
Granted
Exercised
Forfeited, expired or cancelled
Outstanding at December 31, 2022
Exercisable at December 31, 2022

Number of
shares
1,911,177
292,972
(128,811)
(49,796)
2,025,542
1,718,864

$

$
$

Weighted
Average
Exercise
Price
Per Share

Weighted
Average
Contractual 
Remaining Term
(in years)

Aggregate
Intrinsic
Value
(in thousands)

20.64  
19.40  
7.22  
64.30  
20.24  
19.67

6.33

$

15,103

6.10
5.56

$
$

10,804
10,764

The aggregate intrinsic value of stock options exercised in 2022 and 2021 was $2.8 million and $1.6 million, respectively.

The  weighted-average  grant-date  fair  value  per  share  of  the  options  granted  in  2022  and  2021  was  $12.01  and  $22.23,

respectively.

As  of  December  31,  2022,  $4.0  million  of  total  unrecognized  compensation  expense  related  to  stock  options  is  expected  to  be

recognized over a weighted average period of 1.8 years.

Stock-based Compensation Expense

The  fair  value  of  stock  options  granted  during  the  years  ended  December  31,  2022  and  2021,  was  estimated  based  on  the

following weighted average assumptions for:

Dividend yield
Expected volatility
Risk-free interest rate
Expected term

Year Ended December 31, 

2022

2021

0 %  
69 %  
2.68 %  

0 %
83 %
0.95 %

5.64 years

5.66 years

All stock-based compensation expense is recorded in G&A expense. The following table shows total stock-based compensation

expense for stock options and ESPP in the consolidated statements of operations and comprehensive (loss) income (in thousands):

Total stock-based compensation expense included in G&A

 Thomas Burns Equity Awards Modification

Year Ended December 31, 

2022

2021

$

3,608

$

6,195

In  April  2022  and  November  2022,  the  Company  entered  into  letter  agreements  with  Thomas  Burns  that  amended  and
supplemented his amended and restated employment agreement. Pursuant to the November 2022 Letter Agreement, in the event Mr. Burns
remains employed by the Company for a twelve-month period beginning on November 1, 2022, he will be deemed “retirement eligible” for
purposes of his equity awards under the terms of his equity award agreements. All other terms of his amended and restated employment
agreement remain the same. Conditioned on his execution of a release in favor of the Company, Mr. Burns will also receive this benefit
upon any involuntary termination for reasons other than cause. The unrecognized stock compensation cost for the unvested stock options as
of November 1, 2022 will be recognized over the shorter of (1) twelve months and (2) the remaining original vesting period (the “Revised
Vesting

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Term”). During the year ended December 31, 2022, the Company recognized stock-based compensation expense of $0.6 million related to
the Mr. Burns’ option awards. As of December 31, 2022, there was $0.5 million total unrecognized compensation expense related to Mr.
Burns’ stock options expected to be recognized through the earlier of the vesting date of the option or October 31, 2023.

Employee Retention Bonus

On  October  25,  2022,  the  Company  approved  the Amended  Retention  Plan  which  provides  that  each  of  its  current  employees,
excluding  the  CEO,  will  be  eligible  to  receive  a  cash  retention  bonus  if  employed  through  each  of  two  periods:  (1)  the  three-month
anniversary of November 1, 2022 (the “Initial Period”) and (2) the nine-month period immediately following the Initial Period. All other
terms of the Amended Retention Plan remain consistent with the Retention Plan. The Company will accrue and recognize the cost of the
cash retention bonus as expense on a straight-line basis from November 1, 2022 through October 31, 2023. Pursuant to Amended Retention
Plan,  as  of  December  31,  2022,  the  Company  expects  to  pay  $0.8  million  in  2023  related  to  the  cash  retention  bonuses. The  Company
accrued $0.1 million for cash retention bonuses in operating expenses in the consolidated statement of operations and comprehensive loss
(income) during the year ended December 31, 2022.

James R. Neal Departure and Continuity Incentive

On December 30, 2022, the Company’s board of directors (“the Board”) appointed Owen Hughes as Executive Chairman of the
Board and Interim Chief Executive Officer (“CEO”) effective January 1, 2023 and, in connection with Mr. Hughes’ appointment, James R.
Neal retired as the Company’s CEO effective as of December 31, 2022 (the “Departure Date”) and resigned as a member of the Board and
Chairman  of  the  Board,  effective  as  of  January  1,  2023.  Pursuant  to  Mr.  Neal’s Amended  and  Restated  Employment Agreement,  dated
December 15, 2021, by and between the Company and Mr. Neal, following the Departure Date, Mr. Neal is entitled to a cash payment of
$1.2 million (the “Continuity Incentive”) which will be made in equal monthly installments starting in January 2023 through December
2023,  less  deductions  and  withholdings.  The  Company  accrued  the  full  $1.2  million  Continuity  Incentive  in  operating  expenses  in  the
consolidated statement of operations and comprehensive loss (income) during the year ended December 31, 2022.

10. Net (Loss) Income Per Share (Attributable to) Available to Common Stockholders

Potentially dilutive securities are excluded from the calculation of diluted net (loss) income per share (attributable to) available to

common stockholders if their inclusion is anti-dilutive.

The following table shows the weighted-average outstanding securities considered anti-dilutive and therefore excluded from the

computation of diluted net (loss) income per share attributable to common stockholders (in thousands):

Convertible preferred stock
Common stock options
Warrants for common stock
Total

F-32

Year Ended December 31, 

2022

2021

5,003
885
6
5,894  

—
479
—
479

    
    
 
 
 
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The following is a reconciliation of the numerator (net (loss) income) and denominator (number of shares) used in the calculation

of basic and diluted net (loss) income per share attributable to common stockholders (in thousands):

Numerator
Net (loss) income

Less: Series A accumulated dividends
Less: Series B accumulated dividends
Less: Allocation of undistributed earnings to participating securities

Net (loss) income (attributable to) available to common stockholders, basic

Add: Adjustments to undistributed earnings allocated to participating securities

Net (loss) income (attributable to) available to common stockholders, diluted

Denominator
Weighted average shares used in computing basic and diluted net (loss) income
per share (attributable to) available to common stockholders
Effect of dilutive stock options
Effect of dilutive warrants
Weighted average shares used in computing diluted net (loss) income per share
(attributable to) available to common stockholders
Basic net (loss) income per share (attributable to) available to common
stockholders
Diluted net (loss) income per share (attributable to) available to common
stockholders

Year Ended December 31, 

2022

2021

(17,104)
(2,122)
(3,350)
—
(22,576)
—
(22,576)

$

$

$

15,798
(2,122)
(2,438)
(3,451)
7,787
181
7,968

11,413
—
—

11,288
900
4

11,413

12,192

(1.98)

(1.98)

$

$

0.69

0.65

$

$

$

$

$

11. Capital Stock

Series X and Series Y Convertible Preferred Stock

The Company sold directly to BVF 5,003 shares of Series X convertible preferred stock in 2017 and 1,252.772 shares of Series Y
convertible preferred stock in 2018. There were no shares of Series Y convertible preferred stock outstanding as of December 31, 2021,
after BVF converted all Series Y preferred stock into common stock on April 15, 2020.

As of December 31, 2022 and 2021, there were 5,003 shares authorized and issued of Series X convertible preferred stock.

The  Series  X  and  Series Y  convertible  preferred  stock  have  the  following  characteristics,  which  are  set  forth  in  Certificates  of

Designation of Preferences, Rights and Limitations filed with the Delaware Secretary of State.

Dividends— Holders of convertible preferred stock are entitled to receive dividends on shares of convertible preferred stock equal

(on an as if converted to common stock basis) to and in the same form as dividends actually paid on the Company’s common stock.

Liquidation Rights— In the event of the Company’s liquidation, dissolution or winding up, holders of convertible preferred stock

will participate, on a pro-rata basis, with any distribution of proceeds to holders of common stock.

Conversion—  Each  share  of  Series  X  and  Series  Y  is  convertible  into  1,000  shares  of  registered  common  stock  based  on  a

conversion price of $4.03 per share and $13.00 per share of common stock respectively.

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Voting Rights—  Convertible preferred stock will generally have no voting rights, except as required by law and except that the
consent of the holders of the outstanding convertible preferred stock will be required to amend the terms and to issue additional shares of
the preferred stock.

Classification— The Company evaluated the convertible preferred stock for liability or equity classification under the applicable
accounting  guidance  and  determined  that  equity  treatment  was  appropriate  because  the  convertible  preferred  stock  did  not  meet  the
definition of the liability instruments defined thereunder for convertible instruments. Specifically, the convertible preferred shares are not
mandatorily redeemable and do not embody an obligation to buy back the shares outside of the Company’s control in a manner that could
require the transfer of assets. Additionally, the Company determined that the convertible preferred stock would be recorded as permanent
equity, not temporary equity, given that they are not redeemable for cash or other assets (i) on a fixed or determinable date, (ii) at the option
of the holder, and (iii) upon the occurrence of an event that is not solely within control of the Company. The Company has also evaluated
the  embedded  conversion  and  contingent  redemption  features  within  the  convertible  preferred  stock  in  accordance  with  the  accounting
guidance for derivatives and determined that bifurcation is not required for any embedded feature.

Series A Preferred Stock

On  December  15,  2020,  the  Company  sold  984,000  shares  of  its  8.625%  Series A  cumulative,  perpetual  preferred  stock  at  the
price of $25.00 per share, through a public offering for aggregate gross proceeds of $24.6 million. Total offering costs of $2.0 million were
offset against the proceeds from the sale of Series A Preferred Stock, for total net proceeds of $22.6 million.

As of December 31, 2022 and 2021, there were 984,000 shares authorized and issued of Series A Preferred Stock.

The  Series  A  preferred  stock  have  the  following  characteristics,  which  are  set  forth  in  the  Certificates  of  Designation  of

Preferences, Rights and Limitations filed with the Delaware Secretary of State.

Dividends— Holders of the Series A Preferred Stock shall be entitled to receive, when, and if authorized by the Board of Directors
and declared by the Corporation, cumulative cash dividends at the rate of 8.625% per annum of the $25.00 liquidation preference per share
of the Series A Preferred Stock. Such dividends will accumulate and be cumulative from, and including, the date of original issue of the
Series A Preferred Stock. Dividends will be payable in arrears on or about the 15th day of January, April, July and October of each year
beginning on or about April 15, 2021. The amount of any dividend payable on the Series A Preferred Stock for any period greater or less
than a full Dividend Period shall be prorated and computed on the basis of a 360-day year consisting of twelve 30-day months. 

Liquidation Rights— In the event of the Company’s liquidation, dissolution or winding up, holders of Series A Preferred Stock
will rank senior to all classes or series of common stock as to dividend rights and rights upon liquidation, dissolution or winding-up and on
parity with respect to the distribution of assets with the Company’s Series X Preferred Stock. The Series A Preferred Stock have a par value
of $0.05 per share and a liquidation preference of $25.00 per share plus any accrued and unpaid dividends.

Redemption and Special Optional Redemption— The Company, at its option, may redeem the Series A Preferred Stock, in whole
or  in  part,  at  any  time  for  a  cash  redemption  price,  plus  any  accrued  and  unpaid  dividends,  as  follows:  (i)  $26.00  per  share  between
December 15, 2021 and December 15, 2022, (ii) $25.75 per share between December 15, 2022 and December 15, 2023, (iii) $25.50 per
share between December 15, 2023 and December 15, 2024 (iv) $25.25 per share between December 15, 2024 and December 15, 2025 and
$25.00 per share on or after December 15, 2025. The Company also has a special optional redemption option whereby, upon the occurrence
of a delisting event or change of control event, the Company may redeem outstanding Series A Preferred Stock at an amount of $25.00 per
share.

Conversion— The shares of Series A Preferred Stock are not convertible into or exchangeable for any other property or securities
of the Company except upon the occurrence of a delisting event or change in control event and the Company has not, on or before the date
of such an event, provided the required notice of its election to redeem the Series A Preferred Stock pursuant to its redemption right or
special optional redemption right. In this case, the holder of shares of Series A Preferred Stock can convert some or all of their Series A
Preferred Stock into a number of shares of common

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stock  per  share  equal  to  the  lesser  of  (A)  (i)  the  sum  of  the  $25.00  liquidation  preference  per  share  of  Series A  Preferred  Stock  to  be
converted plus (y) the amount of any accrued and unpaid dividends to, but not including, the event date, as applicable by (ii) the common
stock price and (B) 1.46071 (the “Share Cap”). The common stock price to be used in the latter noted calculation for a delisting event will
be the average of the closing price per share of the Company’s common stock on the 10 consecutive trading days immediately preceding,
but not including, the effective date of the delisting event. The common stock price used in the event of a change in control event will,
alternatively, be based on market price according to the definition in the Certificate of Designation.

Voting Rights— Holders of the Series A Preferred Stock generally will have no voting rights, but will have limited voting rights if

the issuer fails to pay dividends for six or more quarters (whether or not declared or consecutive) and in certain other events.

Classification—The Company evaluated the convertible preferred stock for liability or equity classification under the applicable

accounting guidance and determined that treatment as equity was appropriate.

Depositary Shares Representing Interest in Series B Preferred Stock

On April 9, 2021, the Company sold 1,600,000 Series B Depositary Shares, at the price of $25.00 per Series B Depositary Share,
through  a  public  offering  for  aggregate  gross  proceeds  of  $40.0  million.  Each  Series  B  Depositary  Share  represents  1/1000  interest  in  a
share of Series B Preferred Stock. Total offering costs of $2.9 million were offset against the proceeds from the sale of Series B Depositary
Shares, for net proceeds of $37.1 million.

The spouse of James Neal, then CEO and Chairman of the Board of Directors, purchased 8,000 shares of the Series B Depositary

Shares in the public offering at the public offering price of $25.00 per share for an aggregate amount of $0.2 million.

As of December 31, 2022 and 2021, there were 3,600 shares authorized and 1,600 issued of Series B Preferred Stock.

The  Series  B  Preferred  Stock  has  the  following  characteristics,  which  are  set  forth  in  the  Certificate  of  Designation  of  8.375%

Series B Cumulative Perpetual Preferred Stock, as corrected, filed with the Delaware Secretary of State.

Dividends— Holders of Series B Preferred Stock shall be entitled to receive cash dividends, when and if declared by the Board of
Directors at the rate of 8.375% per annum of the $25,000.00 liquidation preference per share, which equals $2,093.75 per share each year.
Such  dividends  shall  be  payable  quarterly  in  arrears  on  or  about  the  15th  calendar  day  of  each  January,  April,  July  and  October
commencing on or about July 15, 2021. The dividends will accumulate and be cumulative from, and including, the date of original issue of
the Series B Preferred Stock, on the basis of a 360-day year consisting of twelve 30-day months. Dividends will be payable to holders of
record as they appear in the stockholder records of the Company (or the depositary in the case of Series B Depositary Shares representing
underlying Series B Preferred Stock) at the close of business on the applicable dividend record date.

Liquidation Preference - Upon any voluntary or involuntary liquidation, dissolution or winding up of the Company, before any
distribution or payment shall be made to holders of shares of Common Stock or any other class or series of capital stock of the Company
ranking  junior  to  the  Series  B  Preferred  Stock,  the  holders  of  shares  of  Series  B  Preferred  Stock  shall  be  paid  out  of  the  assets  of  the
Company, after payment of or provision for the debts and other liabilities and any class or series of capital stock, as to rights upon any
voluntary or involuntary liquidation, dissolution or winding up, senior to the Series B Preferred Stock. The Series B Preferred Stock have a
par value of $0.05 per share and a liquidation preference of $25,000.00 per share plus any accrued and unpaid dividends.

Redemption and Special Optional Redemption - On and after April 15, 2022, the Company, at its option, may redeem the Series B
Preferred Stock, for cash, in whole or in part, at any time or from time to time, as follows: (i) between April 15, 2022 to April 15, 2023, at a
redemption price of $26,000.00 per share ($26.00 per depositary share), (ii) between April 15, 2023 to April 15, 2024, at a redemption price
of $25,750.00 per share ($25.75 per depositary share), (iii) between April 15, 2024 to April 15, 2025, at a redemption price of $25,500.00
per share ($25.50 per depositary share), (iv) between

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April 15, 2025 to April 15, 2026, at a redemption price of $25,250.00 per share ($25.25 per depositary share), and (v) after April 15, 2026,
at  a  redemption  price  of  $25,000.00  per  share  ($25.00  per  depositary  share),  and  in  each  case,  plus  any  accrued  and  unpaid  dividends
thereon  up  to  but  not  including  the  date  fixed  for  redemption,  without  interest.  If  fewer  than  all  of  the  outstanding  shares  of  Series  B
Preferred Stock are to be redeemed, the shares to be redeemed will be determined pro rata or by lot. Upon the occurrence of a delisting
event  or  change  of  control  the  Company  will  have  the  option  to  redeem  the  Series  B  Preferred  Stock,  in  whole  or  in  part,  for  cash  at
$25,000.00 per share plus accrued and unpaid dividends.

Conversion - The shares of Series B Preferred Stock are not convertible into or exchangeable for any other property or securities
of the Company, except upon the occurrence of a delisting event or a change of control, each holder Series B Preferred Stock will have the
right (unless the Company has elected to redeem the Series B Preferred Stock) to convert some or all of the shares of Series B Preferred
Stock  held  by  such  holder  on  the  delisting  event  conversion  date  or  change  of  control  conversion  date  into  a  number  of  shares  of  the
common  stock  (or  equivalent  value  of  alternative  consideration)  per  share  of  Series  B  Preferred  Stock,  equal  to  the  lesser  of  (A)  the
quotient  obtained  by  dividing  (1)  the  sum  of  the  $25,000.00  per  share  liquidation  preference  plus  the  amount  of  any  accumulated  and
unpaid dividends up to, but not including, the delisting event conversion date or change of control conversion date, as applicable (unless the
delisting event conversion date or change of control conversion date, is after a record date for a Series B Preferred Stock dividend payment
and prior to the corresponding Series B Preferred Stock dividend payment date, in which case no additional amount for such accumulated
and then remaining unpaid dividend will be included in this sum) by (2) the common stock price (such quotient, the “Conversion Rate”);
and (B) 1,253.13 (1.25313 per depositary share) (i.e., the “Share Cap”), subject to certain adjustments described in the Series B Preferred
Stock Certificate of Designation.

Voting Rights— Holders of the Series B Preferred Stock generally will have no voting rights, but will have limited voting rights if

the issuer fails to pay dividends for six or more quarters (whether or not declared or consecutive) and in certain other events.

Classification—The Company evaluated the convertible preferred stock for liability or equity classification under the applicable

accounting guidance and determined that treatment as equity was appropriate.

Dividends

During the year ended December 31, 2022, the Company’s Board of Directors declared and paid cash dividends on the Company’s

Series A Preferred Stock and Series B Depositary shares as follows.

Dividend Declaration Date

Series A Preferred Stock
Cash Dividend Declared
($ per share)

Series B Depositary Share
Cash Dividend Declared
($ per share)

     Dividend Payment Date

October 20, 2021
March 17, 2022
May 18, 2022
July 20, 2022
October 26, 2022

$
$
$
$
$

0.53906
0.53906
0.53906
0.53906
0.53906

$
$
$
$
$

0.52344
0.52344
0.52344
0.52344
0.52344

January 18, 2022
April 15, 2022
July 15, 2022
October 17, 2022
January 17, 2023

BVF Ownership

As of December 31, 2022, BVF owned approximately 31.5% of the Company’s total outstanding shares of common stock, and if
all the Series X convertible preferred shares were converted, BVF would own 52.3% of the Company’s total outstanding shares of common
stock. The Company’s Series A Preferred Stock becomes convertible upon the occurrence of specific events and as of December 31, 2022,
the  contingency  was  not  met,  therefore  the  Series  A  Preferred  Stock  owned  by  BVF  is  not  included  in  the  as-converted  ownership
calculation. Due to its significant equity ownership, BVF is considered a related party of the Company.

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2018 Common Stock ATM Agreement

On  December  18,  2018,  the  Company  entered  into  the  2018  Common  Stock  ATM  Agreement  with  HCW,  under  which  the
Company  may  offer  and  sell  from  time  to  time  at  its  sole  discretion  shares  of  its  common  stock  through  HCW  as  its  sales  agent,  in  an
aggregate amount not to exceed $30.0 million. HCW may sell the shares by any method permitted by law deemed to be an “at the market”
offering as defined in Rule 415 of the Securities Act and will use its commercially reasonable efforts consistent with its normal trading and
sales practices to sell the shares up to the amount specified. The Company will pay HCW a commission of up to 3% of the gross proceeds
of any shares of common stock sold under the 2018 Common Stock ATM Agreement. On March 10, 2021, the Company amended the 2018
Common  Stock ATM Agreement  with  HCW  to  increase  the  aggregate  amount  of  shares  of  its  common  stock  that  it  could  sell  through
HCW as its sales agent to $50.0 million. No shares have been sold under the 2018 Common Stock ATM Agreement since the agreement
was executed.

2021 Series B Preferred Stock ATM Agreement

On August 5, 2021, the Company entered into the 2021 Series B Preferred Stock ATM Agreement with B. Riley, under which the
Company may offer and sell from time to time, at its sole discretion, through or to B. Riley, as agent or principal an aggregate amount not
to exceed $50.0 million of its Series B Depositary Shares. B. Riley may sell the shares by any method permitted by law deemed to be an “at
the market” offering as defined in Rule 415 of the Securities Act, and will use its commercially reasonable efforts consistent with its normal
trading and sales practices to sell the shares up to the amount specified. The Company will pay B. Riley a commission of up to 3% of the
gross proceeds of any Series B Depositary Shares sold under the 2021 Series B Preferred Stock ATM Agreement. No shares have been sold
under the 2021 Series B Preferred Stock ATM Agreement since the agreement was executed.

Common Stock Warrants

As of December 31, 2022 and 2021, the following common stock warrants were outstanding:

Issuance Date
May 2018
March 2019

Expiration Date

Balance Sheet Classification

Exercise Price
per Share

     December 31, 

     December 31,

2022

2021

  May 2028

March 2029

  Stockholders’ equity
Stockholders’ equity

$
$

23.69  
14.71

6,332  
4,845
11,177  

6,332
4,845
11,177

In May 2018, the Company issued SVB a warrant in connection with the legacy SVB Loan Agreement which is exercisable in
whole or in part for up to an aggregate of 6,332 shares of common stock with an exercise price of $23.69 per share. The warrant may be
exercised on a cashless basis and is exercisable within 10 years from the date of issuance or upon the consummation of certain acquisitions
of the Company. The fair value of the warrant issued to SVB was determined using the Black-Scholes Model and was estimated to be $0.1
million. The warrant is classified in stockholders’ equity on the consolidated balance sheets.

In  March  2019,  the  legacy  SVB  Loan Agreement  was  amended  to  extend  the  draw  period  from  March  31,  2019  to  March  31,
2020. In connection with the amendment, the Company issued a second warrant to SVB which is exercisable in whole or in part for up to
an  aggregate  of  4,845  shares  of  common  stock  with  an  exercise  price  of  $14.71  per  share.  The  second  warrant  may  be  exercised  on  a
cashless  basis  and  is  exercisable  within  10  years  from  the  date  of  issuance  or  upon  the  consummation  of  certain  acquisitions  of  the
Company. The fair value of the second warrant issued to SVB was determined using the Black-Scholes Model and was estimated to be $0.1
million. As of December 31, 2022, both warrants are outstanding and no shares have been issued upon exercise of the warrants.

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12. Commitments and Contingencies

Collaborative Agreements, Royalties and Milestone Payments

The Company has committed to make potential future milestone payments and legal fees to third parties as part of licensing and
development programs. Payments under these agreements become due and payable only upon the achievement of certain developmental,
regulatory and commercial milestones by the Company’s licensees. Because it is uncertain if and when these milestones will be achieved,
such contingencies, aggregating up to $6.3 million (assuming one product per contract meets all milestones events) have not been recorded
on the accompanying consolidated balance sheets. The Company is unable to determine precisely when and if payment obligations under
the agreements will become due as these obligations are based on milestone events, the achievement of which is subject to a significant
number of risks and uncertainties. None of these milestones were assessed to be probable as of December 31, 2022.

Contingent Consideration

Pursuant to the Company’s agreements with Bioasis, Aronora, Kuros, Affitech, and ObsEva the Company has committed to pay
the  Bioasis  Contingent  Consideration,  the Aronora  Royalty  Milestones,  the  Kuros  Sales  Milestones,  the Affitech  Sales  Milestones,  the
ObsEva Sales Milestones, the ObsEva Non-Sales Milestones, and the Merck KGaA royalties. The Company recorded $0.1 million for the
Bioasis Contingent Consideration which, represents the estimated fair value of the potential future payments at the inception of the Bioasis
RPA. The contingent consideration is remeasured at fair value at each reporting period, with changes in fair value recorded in other income
(expense),  net. As  of  December  31,  2022,  there  has  been  no  change  in  the  estimated  fair  value  of  the  Bioasis  Contingent  Consideration
from the initial value.

The liability for future Aronora Royalty Milestones, Kuros Sales Milestones, and Affitech Sales Milestones will be recorded when
the amounts, by product, are estimable and probable. The liability for future ObsEva Non-Sales Milestones, ObsEva Sales Milestones and
Merck KGaA royalties will be recorded at the time that the corresponding underlying revenue under the Organon License Agreement is
recognized. As  of  December  31,  2022,  none  of  these Aronora  Royalty  Milestones,  Kuros  Sales  Milestones, Affitech  Sales  Milestones,
ObsEva Non-Sales Milestones, ObsEva Sales Milestones, or Merck KGaA royalties were assessed to be probable and as such, no liability
was recorded on the consolidated balance sheet.

Arbitration Proceeding

In  June  2021,  the  Company  initiated  an  arbitration  proceeding  against  one  of  its  licensees  (the  “Licensee”)  with  the American
Arbitration  Association/International  Centre  for  Dispute  Resolution.    XOMA  seeks  damages,  plus  interest,  and  fees  and  costs  of  the
arbitration  (which  fees  and  costs  are  currently  estimated  to  be  in  the  mid-single-digit  millions  of  U.S.  dollars  range).    In  response,  the
Licensee seeks declarations that the License Agreement, under XOMA’s interpretation, is unlawful, void and unenforceable, and that the
License Agreement has expired.  To date, the Licensee has not filed any counterclaims against XOMA. However, to the extent the Licensee
is  deemed  to  be  the  prevailing  party,  the  arbitrators,  in  their  discretion,  may  require  XOMA  to  pay  the  Licensee’s  fees  and  costs  of  the
arbitration (currently estimated to be in the mid-single-digit millions of U.S. dollars range). A hearing before a panel of arbitrators was held
on this matter in November 2022, and the parties have submitted post-hearing briefs.

13. Concentration of Risk, Segment and Geographic Information

Concentration of Risk

Cash and receivables are financial instruments which potentially subject the Company to concentrations of credit risk, as well as

liquidity risk.  

The Company has not experienced any significant credit losses and does not generally require collateral on receivables. For the

year ended December 31, 2022, four partners represented 33%, 31%, 13% and 12% of total revenues.

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For  the  year  ended  December  31,  2021,  one  partner  represented  92%  of  total  revenues.  As  of  December  31,  2022,  there  is  no  trade
receivables balance. As of December 31, 2021, one partner represented 100% of the trade receivables balance.

Segment Information

The Company has determined that it operates in one business segment as it only reports operating results on an aggregate basis to

the chief operating decision maker of the Company.

Geographic Information

Revenue attributed to the following geographic regions was as follows (in thousands) based on the location of the licensees:

United States
Asia Pacific
Europe
Total

The Company’s property and equipment is held in the United States.

Year Ended December 31, 

2022

4,477
1,550
—
6,027

$

$

2021

2,610
550
35,000
38,160

$

$

14. Subsequent Events

Emeryville Lease Extension

On  January  13,  2023,  the  Company  entered  into  an  amendment  to  extend  the  lease  term  of  its  corporate  headquarters  in
Emeryville, California from its original expiration of February 2023 through July 2023. The total remaining undiscounted lease payments
due in 2023 under the extended lease term is $0.1 million.

Appointment of Owen Hughes as Executive Chairman of the Board of Directors and Interim CEO

On  December  30,  2022,  the  Board  appointed  Owen  Hughes  as  Executive  Chairman  of  the  Board  and  Interim  CEO  (principal
executive  officer),  effective  as  of  January  1,  2023.  Pursuant  to  Mr.  Hughes’  employment  agreement,  Mr.  Hughes  will  receive  an  annual
base salary of $125,000 and be eligible to receive an annual discretionary cash bonus, with a target amount equal to 55% of his then-current
annual base salary, upon the achievement of annual performance milestones to be established by the Board.

Pursuant  to  the  terms  of  his  employment  agreement,  on  January  3,  2023,  the  Company  granted  Mr.  Hughes  two  separate  non-
qualified stock options to purchase: (i) 100,000 shares of the Company’s common stock at an exercise price of $18.66 per share (the “First
Hughes Inducement Award”) and (ii) 75,000 shares of the Company’s common stock at an exercise price of $30.00 per share (the “Second
Hughes Inducement Award” and together with the First Hughes Inducement Award, the “Hughes Inducement Awards”). The First Hughes
Inducement Award will vest in a series of four equal installments on March 31, 2023, June 30, 2023, September 30, 2023 and December 31,
2023. The Second Hughes Inducement Award will vest in a series of 36 successive equal monthly installments measured from January 1,
2023. The Hughes Inducement Awards are subject to the terms and conditions of the 2010 Plan but were granted outside the 2010 Plan as
an inducement material to Mr. Hughes entering into employment with us in accordance with Nasdaq Listing Rule 5635(c)(4).

Appointment of Bradley Sitko as Chief Investment Officer

On December 30, 2022, the Board appointed Bradley Sitko as the Company’s Chief Investment Officer, effective as of January 3,

2023. Pursuant to Mr. Sitko’s employment agreement with the Company, he will receive an annual base

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salary of $500,000 and a signing bonus of $110,000. Mr. Sitko’s signing bonus will be paid within 30 days after the effective date of his
employment  agreement  and  will  be  subject  to  standard  deductions  and  withholdings.  If  Mr.  Sitko  resigns  without  good  reason  or  is
terminated  for  cause  (each  as  defined  in  his  employment  agreement),  in  either  case,  within  one  year  after  the  effective  date  of  his
employment agreement, then Mr. Sitko will be required to repay the signing bonus, based on the gross amount, but prorated on a daily basis
for the time employed, to be paid within 60 days after his termination date. Mr. Sitko will also be eligible to receive an annual discretionary
cash  bonus,  with  a  target  amount  equal  to  50%  of  his  then-current  annual  base  salary,  upon  the  achievement  of  annual  performance
milestones to be established by the Board.

Pursuant  to  the  terms  of  his  employment  agreement,  on  January  3,  2023  the  Company  granted  Mr.  Sitko  two  separate  non-
qualified stock options to purchase: (i) 300,000 shares of the Company’s common stock at an exercise price of $18.66 per share (the “First
Sitko Inducement Award”) and (ii) 250,000 shares of the Company’s common stock at an exercise price of $30.00 per share (together with
the  First  Sitko  Inducement  Award,  the  “Sitko  Inducement  Awards”).  Twenty-five  percent  of  the  shares  subject  to  each  of  the  Sitko
Inducement Awards will vest and become exercisable on January 3, 2024 (the “Initial Vesting Date”), and the balance of the shares subject
to each of the Sitko Inducement Awards will vest and become exercisable in a series of 36 successive equal monthly installments thereafter
on the same day of the month as the Initial Vesting Date. The Sitko Inducement Awards are subject to the terms and conditions of the 2010
Plan, but were granted outside the 2010 Plan as an inducement material to Mr. Sitko entering into employment with us in accordance with
Nasdaq Listing Rule 5635(c)(4).

F-40

Exhibit 4.6

DESCRIPTION OF XOMA CORPORATION CAPITAL STOCK

The following is a description of the Common Stock, $0.0075 par value (the “Common Stock”), Preferred Stock, $0.05 par value
(the  “Preferred  Stock”)  and  depositary  shares  of  XOMA  Corporation  (the  “Company”).  The  Common  Stock,  8.625%  Series  A
Cumulative Perpetual Preferred Stock (the “Series A Preferred Stock”) and the depositary shares (the “Series B Depositary Shares”)
representing the 8.375% Series B Cumulative Perpetual Preferred Stock (the “Series B Preferred Stock”) are the only securities of the
Company registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

Common Stock

General. The Company is authorized to issue up to 277,333,332 shares of Common Stock. The following description is based on
(i) the Company’s Certificate of Incorporation, as currently in effect (the “Certificate of Incorporation”), (ii) the Company’s By-laws,
as  currently  in  effect  (the  “By-laws”),  and  (iii)  the  Delaware  General  Corporation  Law  (the  “DGCL”).  The  following  summary
description  of  the  Common  Stock  of  the  Company  is  qualified  in  its  entirety  by  reference  to  the  provisions  of  the  Certificate  of
Incorporation and By-laws, copies of which have been filed as exhibits to the Company’s Annual Report on Form 10-K filed herewith,
and the applicable provisions of the DGCL.

Dividend Rights. The holders of our Common Stock have the right to receive dividends and distributions, whether payable in cash

or otherwise, as may be declared from time to time by our board of directors, from legally available funds.

Voting Rights. Each holder of our Common Stock is generally entitled to one vote for each share of Common Stock owned of
record on all matters submitted to a vote of our stockholders. Except as otherwise required by law, holders of Common Stock (as well
as holders of any Preferred Stock entitled to vote with the common stockholders) will generally vote together as a single class on all
matters  presented  to  the  stockholders  for  their  vote  or  approval,  including  the  election  of  directors. Any  matter  brought  before  the
stockholders for a vote, other than the election of directors, will generally be decided by a majority of the votes cast on the matter,
unless  the  matter  is  one  in  which  an  express  provision  of  the  DGCL,  the  Certificate  of  Incorporation,  the  By-laws,  the  rules  or
regulations  of  any  stock  exchange  applicable  to  us,  applicable  law  or  pursuant  to  any  regulation  applicable  to  us  or  our  securities
requires  a  different  vote,  in  which  case  the  express  provision  will  govern  and  control  the  decision  of  the  matter.  Directors  will  be
elected by a plurality of the votes cast and entitled to vote generally on the election of directors. There are no cumulative voting rights
with respect to the election of directors or any other matters.

No  Preemptive  or  Similar  Rights.  Holders  of  our  Common  Stock  have  no  redemption  rights,  conversion  rights  or  preemptive

rights to purchase or subscribe for our securities.

Right to Receive Liquidation Distributions. In the event of our liquidation, dissolution or winding-up, holders of our Common
Stock  will  be  entitled  to  share  equally  in  the  assets  available  for  distribution  after  payment  of  all  creditors  and  the  liquidation
preferences of our Preferred Stock (if any).

The rights of the holders of our Common Stock are subject to, and may be adversely affected by, the rights of holders of shares of any
Preferred Stock that we may designate and issue in the future.

Preferred Stock

General. Under our Certificate of Incorporation, our board of directors is authorized to issue up to 1,000,000 shares of Preferred

Stock, and, by resolution, to divide the Preferred Stock into series and, with respect to each series,

to  determine  the  designations  and  the  powers,  preferences  and  rights,  and  the  qualifications,  limitations  and  restrictions  thereof,
including  the  dividend  rights,  conversion  or  exchange  rights,  voting  rights,  redemption  rights  and  terms,  liquidation  preferences,
sinking fund provisions and the number of shares constituting the series. Our board of directors can, without stockholder approval but
subject to the terms of the Certificate of Incorporation and to any resolution of the stockholders approved by at least 75% of all issued
shares  entitled  to  vote  in  respect  thereof,  issue  Preferred  Stock  with  voting  and  other  rights  that  could  adversely  affect  the  voting
power of the holders of our Common Stock and which could have certain anti-takeover effects. Before we may issue any series of
Preferred Stock, our board of directors will be required to adopt resolutions creating and designating such series of Preferred Stock.

The following summary description of the Preferred Stock of the Company, including the Series B Depositary Shares, is qualified
in  its  entirety  by  reference  to  the  provisions  of  the  Certificate  of  Incorporation,  By-laws  and  the  certificates  of  designation  of
preferences, rights and limitations of each series of the Preferred Stock, copies of which have been filed as exhibits to the Company’s
Annual  Report  on  Form  10-K,  and  the  applicable  provisions  of  the  DGCL.  As  of  December  31,  2022,  5,003  shares  of  Series  X
Preferred  Stock,  984,000  shares  of  Series  A  Preferred  Stock  and  1,600  shares  of  Series  B  Depositary  Shares  were  issued  and
outstanding.

The 8.625% Series A Cumulative Perpetual Preferred Stock. We have designated 984,000 shares of our Preferred Stock as Series

A Preferred Stock.

The Series A Preferred Stock will rank, as to dividend rights and rights upon our liquidation, dissolution or winding up:

● senior to all classes or series of our Common Stock and to all other equity securities issued by us expressly designated as
ranking junior to the Series A Preferred Stock;

● senior with respect to the payment of dividends and on parity with respect to the distribution of assets upon our liquidation,
dissolution or winding up with our Series X Preferred Stock and on parity with any future class or series of our equity securities
expressly designated as ranking on parity with the Series A Preferred Stock;

● junior  to  all  equity  securities  issued  by  us  with  terms  specifically  providing  that  those  equity  securities  rank  senior  to  the
Series A Preferred Stock with respect to the payment of dividends and the distribution of assets upon our liquidation, dissolution
or winding up, none of which exists on the date hereof; and;

● effectively junior to all our existing and future indebtedness (including indebtedness convertible into our Common Stock or
Preferred Stock) and to the indebtedness and other liabilities of (as well as any preferred equity interests held by others in) our
existing or future subsidiaries.

Dividends.  We  will  pay  cumulative  cash  dividends  on  the  Series  A  Preferred  Stock,  when  and  as  declared  by  our  board  of
directors, at the rate of 8.625% of the $25.00 liquidation preference per share per year (equivalent to $2.15625 per year). Dividends
will  be  payable  quarterly  in  arrears,  on  or  about  the  15th  day  of  January, April,  July  and  October;  provided  that  if  any  dividend
payment date is not a business day, then the dividend which would otherwise have been payable on that dividend payment date may be
paid  on  the  next  succeeding  business  day,  and  no  interest,  additional  dividends  or  other  sums  will  accumulate.  Dividends  will
accumulate and be cumulative from, and including, the date of original issuance. The first dividend, which was paid on April 15, 2021
in the amount of $0.71875 per share of Series A Preferred Stock, was for more than a full quarter and covered the period from, and
including, the first date we issued and sold the Series A Preferred Stock through, but not including, April 15, 2021. Dividends on the
Series  A  Preferred  Stock  will  continue  to  accumulate  whether  or  not  (i)  any  of  our  agreements  prohibit  the  current  payment  of
dividends,  (ii)  we  have  earnings  or  funds  legally  available  to  pay  the  dividends,  or  (iii)  our  board  of  directors  does  not  declare  the
payment of the dividends.

Liquidation Preference. The liquidation preference of each share of Series A Preferred Stock is $25.00. Upon liquidation, holders
of our Series A Preferred Stock will be entitled to receive the liquidation preference with respect to their shares of Series A Preferred
Stock plus an amount equal to accumulated but unpaid dividends with respect to such shares.

Optional Redemption. On and after December 15, 2021, the first anniversary of December 15, 2020, to but excluding the second
anniversary, the shares of Series A Preferred Stock will be redeemable at our option, in whole or in part, at a redemption price equal to
$26.00 per share, plus any accrued and unpaid dividends. On and after December 15, 2022, the second anniversary of December 15,
2020, to but excluding the third anniversary, the shares of Series A Preferred Stock will be redeemable at our option, in whole or in
part, at a redemption price equal to $25.75 per share, plus any accrued and unpaid dividends. On and after December 15, 2023, the
third  anniversary  of  December  15,  2020,  to  but  excluding  the  fourth  anniversary,  the  shares  of  Series  A  Preferred  Stock  will  be
redeemable at our option, in whole or in part, at a redemption price equal to $25.50 per share, plus any accrued and unpaid dividends.
On and after December 15, 2024, the fourth anniversary of December 15, 2020, to but excluding the fifth anniversary, the shares of
Series A Preferred Stock will be redeemable at our option, in whole or in part, at a redemption price equal to $25.25 per share, plus
any accrued and unpaid dividends. On and after December 15, 2025, the fifth anniversary of December 15, 2020, the shares of Series
A  Preferred  Stock  will  be  redeemable  at  our  option,  in  whole  or  in  part,  at  a  redemption  price  equal  to  $25.00  per  share,  plus  any
accrued and unpaid dividends.

Special  Optional  Redemption  Upon  a  Change  of  Control  or  Delisting  Event.  Upon  the  occurrence  of  a  Delisting  Event  (as
defined below), we may, at our option, redeem the Series A Preferred Stock, in whole or in part, within 90 days after the first date on
which such Delisting Event occurred, for cash, at a redemption price of $25.00 per share, plus any accrued and unpaid dividends up to,
but not including, the date of redemption.

With respect to the Series A Preferred Stock, a “Delisting Event” occurs when, after the original issuance of Series A Preferred
Stock, both (i) the shares of Series A Preferred Stock are no longer listed on Nasdaq, the New York Stock Exchange (the “NYSE”) or
the NYSE American LLC (“NYSE AMER”), or listed or quoted on an exchange or quotation system that is a successor to Nasdaq, the
NYSE or the NYSE AMER, and (ii) we are not subject to the reporting requirements of the Exchange Act, but any Series A Preferred
Stock is still outstanding.

Upon the occurrence of a Change of Control (as defined below), we may, at our option, redeem the Series A Preferred Stock, in
whole  or  in  part  within  120  days  after  the  first  date  on  which  such  Change  of  Control  occurred,  for  cash,  at  a  redemption  price  of
$25.00 per share, plus any accrued and unpaid dividends up to, but not including, the date of redemption.

With  respect  to  the  Series A  Preferred  Stock,  a  “Change  of  Control”  occurs  when,  after  the  original  issuance  of  the  Series A

Preferred Stock, the following have occurred and are continuing:

● the  acquisition  by  any  person,  including  any  syndicate  or  group  deemed  to  be  a  “person”  under  Section  13(d)(3)  of  the
Exchange Act, of beneficial ownership, directly or indirectly, through a purchase, merger or other acquisition transaction or
series of purchases, mergers or other acquisition transactions of shares of our company entitling that person to exercise more
than 50% of the total voting power of all shares of our company entitled to vote generally in elections of directors (except
that  such  person  will  be  deemed  to  have  beneficial  ownership  of  all  securities  that  such  person  has  the  right  to  acquire,
whether such right is currently exercisable or is exercisable only upon the occurrence of a subsequent condition); and

● following the closing of any transaction referred to in the bullet point above, neither we nor any acquiring or surviving entity
(or if, in connection with such transaction shares of our Common Stock are converted into or exchanged for (in whole or in
part) common equity securities of another entity), has a class of common securities (or ADRs representing such securities)
listed on Nasdaq, the NYSE or the NYSE AMER, or listed or quoted on an exchange or quotation system that is a successor
to Nasdaq, the NYSE or the NYSE AMER.

We  refer  to  redemption  following  a  Delisting  Event  or  Change  of  Control  as  a  “special  optional  redemption.”  If,  prior  to  the
Delisting Event Conversion Date (as defined below) or the Change of Control Conversion Date (as defined below), as applicable, we
have  provided  or  provide  notice  of  exercise  of  any  of  our  redemption  rights  relating  to  the  Series A  Preferred  Stock  (whether  our
optional  redemption  right  or  our  special  optional  redemption  right),  the  holders  of  the  Series A  Preferred  Stock  will  not  have  the
conversion right described below.

Conversion. Upon the occurrence of a Delisting Event or a Change of Control, as applicable, each holder of Series A Preferred
Stock will have the right (unless, prior to the Delisting Event Conversion Date or Change of Control Conversion Date, as applicable,
we  have  provided  or  provide  notice  of  our  election  to  redeem  the  Series A  Preferred  Stock)  to  convert  some  or  all  of  the  Series A
Preferred Stock held by such holder on the Delisting Event Conversion Date or Change of Control Conversion Date, as applicable,
into a number of shares of our Common Stock (or equivalent value of alternative consideration) per share of Series A Preferred Stock
equal to the lesser of:

● the  quotient  obtained  by  dividing  (1)  the  sum  of  the  $25.00  per  share  liquidation  preference  plus  the  amount  of  any
accumulated  and  unpaid  dividends  up  to,  but  not  including,  the  Delisting  Event  Conversion  Date  or  Change  of  Control
Conversion  Date,  as  applicable  (unless  the  Delisting  Event  Conversion  Date  or  Change  of  Control  Conversion  Date,  as
applicable  is  after  a  record  date  for  a  Series A  Preferred  Stock  dividend  payment  and  prior  to  the  corresponding  Series A
Preferred Stock dividend payment date, in which case no additional amount for such accumulated and unpaid dividend will
be included in this sum) by (2) the Common Stock Price (as defined below); and

● 1.46071 (i.e., the Share Cap), subject to certain adjustments; and subject, in each case, to certain conditions, including, under
specified circumstances, an aggregate cap on the total number of shares of our Common Stock issuable upon conversion and
to provisions for the receipt of alternative consideration.

If,  prior  to  the  Delisting  Event  Conversion  Date  or  Change  of  Control  Conversion  Date,  as  applicable,  we  have  provided  or
provide a redemption notice, whether pursuant to our special optional redemption right or our optional redemption right, holders of
Series  A  Preferred  Stock  will  not  have  any  right  to  convert  the  Series  A  Preferred  Stock,  and  any  Series  A  Preferred  Stock
subsequently selected for redemption that has been tendered for conversion will be redeemed on the related date of redemption instead
of converted on the Delisting Event Conversion Date or Change of Control Conversion Date, as applicable.

In the event that the conversion would result in the issuance of fractional shares of Common Stock, we will pay the holder of Series A
Preferred Stock cash in lieu of such fractional shares.

Except as provided above in connection with a Delisting Event or Change of Control, shares of the Series A Preferred Stock are not
convertible into or exchangeable for any other securities or property.

For purposes of this description of the Series A Preferred Stock, “Change of Control Conversion Date” means a business day
fixed by our board of directors that is not fewer than 20 days nor more than 35 days after the date on which we provide notice to the
holders of the Series A Preferred Stock of a Change of Control.

For purposes of this description of the Series A Preferred Stock, “Common Stock Price” for any Change of Control will be: (1) if
the  consideration  to  be  received  in  the  Change  of  Control  by  the  holders  of  our  Common  Stock  is  solely  cash,  the  amount  of  cash
consideration  per  share  of  Common  Stock;  and  (2)  if  the  consideration  to  be  received  in  the  Change  of  Control  by  holders  of  our
Common Stock is other than solely cash (x) the average of the closing prices for our Common Stock on the principal U.S. securities
exchange on which our Common Stock is then traded (or, if no closing sale price is reported, the average of the closing bid and ask
prices per share or, if more than one in either case, the average of the average closing bid and the average closing ask prices per share)
for the ten consecutive trading days immediately preceding, but not including, the date on which such Change of Control occurred as
reported on the principal U.S. securities exchange on which our Common Stock is then traded, or (y) the average of the last quoted bid
prices for our Common Stock in the over-the-counter market as reported by OTC Markets Group Inc. or similar organization for the
ten  consecutive  trading  days  immediately  preceding,  but  not  including,  the  date  on  which  such  Change  of  Control  occurred,  if  our
Common Stock is not then listed for trading on a U.S. securities exchange. The “Common Stock Price” for any Delisting Event will
be the average of the closing price per share of our Common Stock on the 10 consecutive trading days immediately preceding, but not
including, the effective date of the Delisting Event.

For purposes of this description of the Series A Preferred Stock, “Delisting Event Conversion Date” means a business day fixed
by our board of directors that is not fewer than 20 days nor more than 35 days after the date on which we provide notice to the holders
of the Series A Preferred Stock of a Delisting Event.

Voting Rights. Holders of Series A Preferred Stock generally will have no voting rights. However, if we do not pay dividends on
any outstanding shares of Series A Preferred Stock for six or more quarterly dividend periods (whether or not declared or consecutive),
holders of Series A Preferred Stock (voting separately as a class with all other outstanding series of preferred stock upon which like
voting  rights  have  been  conferred  and  are  exercisable)  will  be  entitled  to  elect  two  additional  directors  to  our  board  of  directors  to
serve until all unpaid dividends have been fully paid or declared and set apart for payment. In addition, certain material and adverse
changes to the terms of the Series A Preferred Stock cannot be made without the affirmative vote of holders of at least 66 2/3% of the
outstanding shares of Series A Preferred Stock, voting as a separate class. In any matter in which the Series A Preferred Stock may
vote, each share of Series A Preferred Stock shall be entitled to one vote.

The  8.375%  Series  B  Cumulative  Perpetual  Preferred  Stock  and  the  Series  B  Depositary  Shares.  We  have  designated  3,600

shares of our Preferred Stock as Series B Preferred Stock.

The  Series  B  Preferred  Stock  underlying  the  Series  B  Depositary  Shares  will  rank,  as  to  dividend  rights  and  rights  upon  our

liquidation, dissolution or winding up:

● senior to all classes or series of our Common Stock and to all other equity securities issued by us expressly designated as

ranking junior to the Series B Preferred Stock;

● senior with respect to the payment of dividends and on parity with respect to the distribution of assets upon our liquidation,

dissolution or winding up with our Series X Preferred Stock;

● on parity with our Series A Preferred Stock, and with any future class or series of our equity securities expressly designated

as ranking on parity with the Series B Preferred Stock;

● junior  to  all  equity  securities  issued  by  us  with  terms  specifically  providing  that  those  equity  securities  rank  senior  to  the
Series  B  Preferred  Stock  with  respect  to  the  payment  of  dividends  and  the  distribution  of  assets  upon  our  liquidation,
dissolution or winding up, none of which exists on the date hereof; and

● effectively junior to all our existing and future indebtedness (including indebtedness convertible into our Common Stock or
Preferred Stock) and to the indebtedness and other liabilities of (as well as any preferred equity interests held by others in)
our existing or future subsidiaries.

Dividends.  We  will  pay  cumulative  cash  dividends  on  the  Series  B  Preferred  Stock,  when  and  as  declared  by  our  board  of
directors,  at  the  rate  of  8.375%  of  the  $25,000.00  liquidation  preference  ($25.00  per  depositary  share)  per  year  (equivalent  to
$2,093.75 per share or $2.09375 per depositary share per year). Dividends will be payable quarterly in arrears, on or about the 15th
day of January, April, July and October; provided that if any dividend payment date is not a business day, then the dividend which
would otherwise have been payable on that dividend payment date may be paid on the next succeeding business day, and no interest,
additional  dividends  or  other  sums  will  accumulate.  Dividends  will  accumulate  and  be  cumulative  from,  and  including,  the  date  of
original issuance. Dividends on the Series B Preferred Stock underlying the Series B Depositary Shares will continue to accumulate
whether or not (i) any of our agreements prohibit the current payment of dividends, (ii) we have earnings or funds legally available to
pay the dividends, or (iii) our board of directors does not declare the payment of the dividends.

Liquidation  Preference.  The  liquidation  preference  of  each  share  of  Series  B  Preferred  Stock  is  $25,000.00  ($25.00  per
depositary share). Upon liquidation, holders of our Series B Preferred Stock will be entitled to receive the liquidation preference with
respect  to  their  shares  of  Series  B  Preferred  Stock  plus  an  amount  equal  to  accumulated  but  unpaid  dividends  with  respect  to  such
shares.

Optional Redemption. On and after April 15, 2022, the shares of Series B Preferred Stock will be redeemable at our option, in
whole  or  in  part,  at  a  redemption  price  equal  to  $26,000.00  per  share  ($26.00  per  depositary  share),  plus  any  accrued  and  unpaid
dividends. On and after April 15, 2023, the shares of Series B Preferred Stock will be redeemable at our option, in whole or in part, at
a redemption price equal to $25,750.00 per share ($25.75 per depositary share), plus any accrued and unpaid dividends. On and after
April 15, 2024, the shares of Series B Preferred

Stock will be redeemable at our option, in whole or in part, at a redemption price equal to $25,500.00 per share ($25.50 per depositary
share), plus any accrued and unpaid dividends. On and after April 15, 2025, the shares of Series B Preferred Stock will be redeemable
at our option, in whole or in part, at a redemption price equal to $25,250.00 per share ($25.25 per depositary share), plus any accrued
and unpaid dividends. On and after April 15, 2026, the shares of Series B Preferred Stock will be redeemable at our option, in whole
or in part, at a redemption price equal to $25,000.00 per share ($25.00 per depositary share), plus any accrued and unpaid dividends.
On  or  after  the  date  fixed  for  redemption  of  shares  of  Series  B  Preferred  Stock,  each  holder  of  Series  B  Depositary  Shares  to  be
redeemed must present and surrender the depositary receipts evidencing the Series B Depositary Shares to the depositary at the place
designated in the notice of redemption. The redemption price of such Series B Depositary Shares will then be paid to or on the order of
the person whose name appears on such depositary receipts as the owner thereof.

Special  Optional  Redemption  Upon  a  Change  of  Control  or  Delisting  Event.  Upon  the  occurrence  of  a  Delisting  Event  (as
defined below), we may, at our option, redeem the Series B Preferred Stock, in whole or in part, within 90 days after the first date on
which  such  Delisting  Event  occurred,  for  cash,  at  a  redemption  price  of  $25,000.00  per  share  (equivalent  to  $25.00  per  depositary
share),  plus  any  accrued  and  unpaid  dividends  up  to,  but  not  including,  the  date  of  redemption,  and  the  depositary  will  redeem  a
proportional number of Series B Depositary Shares representing the shares redeemed.

With respect to the Series B Preferred Stock, a “Delisting Event” occurs when, after the original issuance of Series B Preferred
Stock, both (i) the shares of Series B Preferred Stock (or the Series B Depositary Shares) are no longer listed on Nasdaq, the NYSE or
the  NYSE AMER,  or  listed  or  quoted  on  an  exchange  or  quotation  system  that  is  a  successor  to  Nasdaq,  the  NYSE  or  the  NYSE
AMER, and (ii) we are not subject to the Exchange Act, but any Series B Preferred Stock is still outstanding.

Upon  the  occurrence  of  a  Change  of  Control  (as  defined  below),  we  may,  at  our  option,  redeem  the  Series  B  Preferred  Stock
underlying the Series B Depositary Shares, in whole or in part within 120 days after the first date on which such Change of Control
occurred, for cash, at a redemption price of $25,000.00 per share (equivalent to $25.00 per depositary share), plus any accrued and
unpaid dividends up to, but not including, the date of redemption, and the depositary will redeem a proportional number of Series B
Depositary Shares representing the shares redeemed.

With  respect  to  the  Series  B  Preferred  Stock,  a  “Change  of  Control”  occurs  when,  after  the  original  issuance  of  the  Series  B

Preferred Stock, the following have occurred and are continuing:

● the  acquisition  by  any  person,  including  any  syndicate  or  group  deemed  to  be  a  “person”  under  Section  13(d)(3)  of  the
Exchange Act, of beneficial ownership, directly or indirectly, through a purchase, merger or other acquisition transaction or
series of purchases, mergers or other acquisition transactions of shares of our company entitling that person to exercise more
than 50% of the total voting power of all shares of our company entitled to vote generally in elections of directors (except
that  such  person  will  be  deemed  to  have  beneficial  ownership  of  all  securities  that  such  person  has  the  right  to  acquire,
whether such right is currently exercisable or is exercisable only upon the occurrence of a subsequent condition); and

● following the closing of any transaction referred to in the bullet point above, neither we nor any acquiring or surviving entity
(or if, in connection with such transaction shares of our Common Stock are converted into or exchanged for (in whole or in
part) common equity securities of another entity), has a class of common securities (or ADRs representing such securities)
listed on Nasdaq, the NYSE or the NYSE AMER, or listed or quoted on an exchange or quotation system that is a successor
to Nasdaq, the NYSE or the NYSE AMER.

We  refer  to  redemption  following  a  Delisting  Event  or  Change  of  Control  as  a  “special  optional  redemption.”  If,  prior  to  the
Delisting Event Conversion Date or the Change of Control Conversion Date (each as defined below), as applicable, we have provided
or provide notice of exercise of any of our redemption rights relating to the Series B Preferred Stock (whether our optional redemption
right  or  our  special  optional  redemption  right),  the  holders  of  Series  B  Depositary  Shares  representing  interests  in  the  Series  B
Preferred Stock will not have the conversion right described below.

Conversion. Upon the occurrence of a Delisting Event or a Change of Control, as applicable, each holder of Series B Depositary
Shares representing interests in the Series B Preferred Stock will have the right (unless, prior to the Delisting Event Conversion Date
or  Change  of  Control  Conversion  Date,  as  applicable,  we  have  provided  or  provide  notice  of  our  election  to  redeem  the  Series  B
Preferred Stock) to direct the depositary, on such holder’s behalf, to convert some or all of the Series B Preferred Stock underlying the
Series B Depositary Shares held by such holder on the Delisting Event Conversion Date or Change of Control Conversion Date, as
applicable into a number of shares of our Common Stock (or equivalent value of alternative consideration) per depositary share equal
to the lesser of:

● the quotient obtained by dividing (1) the sum of the $25.00 per depositary share liquidation preference plus the amount of
any accumulated and unpaid dividends up to, but not including, the Delisting Event Conversion Date or Change of Control
Conversion  Date,  as  applicable  (unless  the  Delisting  Event  Conversion  Date  or  Change  of  Control  Conversion  Date,  as
applicable  is  after  a  record  date  for  a  Series  B  Preferred  Stock  dividend  payment  and  prior  to  the  corresponding  Series  B
Preferred Stock dividend payment date, in which case no additional amount for such accumulated and unpaid dividend will
be included in this sum) by (2) the Common Stock Price (as defined herein); and

● 1.25313 (i.e., the Share Cap), subject to certain adjustments; and subject, in each case, to certain conditions, including, under
specified circumstances, an aggregate cap on the total number of shares of our Common Stock issuable upon conversion and
to provisions for the receipt of alternative consideration.

If,  prior  to  the  Delisting  Event  Conversion  Date  or  Change  of  Control  Conversion  Date,  as  applicable,  we  have  provided  or
provide a redemption notice, whether pursuant to our special optional redemption right or our optional redemption right, holders of
Series B Depositary Shares representing interests in the Series B Preferred Stock will not have any right to direct the depositary to
convert the Series B Preferred Stock, and any Series B Preferred Stock subsequently selected for redemption that has been tendered
for conversion will be redeemed on the related date of redemption instead of converted on the Delisting Event Conversion Date or
Change of Control Conversion Date, as applicable.

Because each depositary share represents a 1/1000th interest in a share of the Series B Preferred Stock, the number of shares of
Common Stock ultimately received for each depositary share will be equal to the number of shares of Common Stock received upon
conversion of each share of Series B Preferred Stock divided by 1000. In the event that the conversion would result in the issuance of
fractional shares of Common Stock, we will pay the holder of Series B Depositary Shares cash in lieu of such fractional shares.

Except as provided above in connection with a Delisting Event or Change of Control, shares of the Series B Preferred Stock are

not convertible into or exchangeable for any other securities or property.

For  purposes  of  this  description  of  the  Series  B  Preferred  Stock  and  the  underlying  Series  B  Depositary  Shares,  “Change  of
Control Conversion Date” means a business day fixed by our board of directors that is not fewer than 20 days nor more than 35 days
after the date on which we provide the notice described above to the holders of the Series B Depositary Shares representing interests in
the Series B Preferred Stock.

For purposes of this description of the Series B Preferred Stock and the underlying Series B Depositary Shares, “Common Stock
Price”  for  any  Change  of  Control  will  be:  (1)  if  the  consideration  to  be  received  in  the  Change  of  Control  by  the  holders  of  our
Common  Stock  is  solely  cash,  the  amount  of  cash  consideration  per  share  of  Common  Stock;  and  (2)  if  the  consideration  to  be
received in the Change of Control by holders of our Common Stock is other than solely cash (x) the average of the closing prices for
our Common Stock on the principal U.S. securities exchange on which our Common Stock is then traded (or, if no closing sale price is
reported, the average of the closing bid and ask prices per share or, if more than one in either case, the average of the average closing
bid and the average closing ask prices per share) for the ten consecutive trading days immediately preceding, but not including, the
date on which such Change of Control occurred as reported on the principal U.S. securities exchange on which our Common Stock is
then traded, or (y) the average of the last quoted bid prices for our Common Stock in the over-the-counter market as reported by OTC
Markets Group Inc. or similar organization for the ten consecutive trading days immediately preceding, but not including, the date on
which such Change of Control occurred, if our Common Stock is not then

listed for trading on a U.S. securities exchange. The “Common Stock Price” for any Delisting Event will be the average of the closing
price per share of our Common Stock on the 10 consecutive trading days immediately preceding, but not including, the effective date
of the Delisting Event.

For purposes of this description of the Series B Preferred Stock and the underlying Series B Depositary Shares, “Delisting Event
Conversion Date” means a business day fixed by our board of directors that is not fewer than 20 days nor more than 35 days after the
date on which we provide the notice described above to the holders of the Series B Depositary Shares representing interests in the
Series B Preferred Stock.

Voting  Rights.  Holders  of  the  Series  B  Depositary  Shares  representing  interests  in  the  Series  B  Preferred  Stock  generally  will
have no voting rights. However, if we do not pay dividends on any outstanding shares of Series B Preferred Stock for six or more
quarterly dividend periods (whether or not declared or consecutive), holders of Series B Preferred Stock (voting separately as a class
with  all  other  outstanding  series  of  preferred  stock  upon  which  like  voting  rights  have  been  conferred  and  are  exercisable)  will  be
entitled to elect two additional directors to our Board of Directors to serve until all unpaid dividends have been fully paid or declared
and set apart for payment. In addition, certain material and adverse changes to the terms of the Series B Preferred Stock cannot be
made without the affirmative vote of holders of at least 66 2/3% of the outstanding shares of Series B Preferred Stock, voting as a
separate class. In any matter in which the Series B Preferred Stock may vote, each share of Series B Preferred Stock shall be entitled
to one vote. As a result, each depositary share will be entitled to 1/1000th of a vote.

The Series X Preferred Stock. We have designated 5,003 shares of our Preferred Stock as Series X Preferred Stock. The Series X

Preferred Stock ranks:

● senior  to  any  class  or  series  of  our  capital  stock  created  specifically  ranking  by  its  terms  junior  to  the  Series  X  Preferred

Stock;

● on parity to our Common Stock;

● on  parity  to  any  class  or  series  of  our  capital  stock  created  specifically  ranking  by  its  terms  on  parity  with  the  Series  X

Preferred Stock; and

● junior  to  any  class  or  series  of  our  capital  stock  created  specifically  ranking  by  its  terms  senior  to  the  Series  X  Preferred

Stock;

in each case, as to distributions of assets upon our liquidation, dissolution or winding up whether voluntarily or involuntarily.

Dividends. Holders of Series X Preferred Stock are entitled to receive dividends on shares of Series X Preferred Stock equal (on

an as-converted basis) to and in the same form as dividends actually paid on our Common Stock or other junior securities.

Liquidation Preference. In the event of our liquidation, dissolution, or winding up, holders of our Series X Preferred Stock will
participate pari passu (on an as-converted basis, without regard to any blocker provisions) with any distribution of proceeds to holders
of our Common Stock.

Redemption. We are not obligated to redeem or repurchase any shares of Series X Preferred Stock. Shares of Series X Preferred

Stock are not otherwise entitled to any redemption rights or mandatory sinking fund or analogous fund provisions.

Conversion. The Series X Preferred Stock is convertible at the option of the holders thereof at any time after issuance into the
number  of  registered  shares  of  Common  Stock  determined  by  dividing  the  aggregate  stated  value  of  the  Series  X  Preferred  Stock
being converted by the conversion price then in effect. The initial conversion price is $4.03 and is subject to adjustment as described
below. No holder may request a conversion of its Series X Preferred Stock to the extent such conversion would result in the holder and
its affiliates beneficially owning more than a pre-

set  conversion  blocker  threshold,  which  will  initially  be  set  at  19.99%  of  our  Common  Stock  then  outstanding  (the  “Beneficial
Ownership  Limitation”).  The  amount  of  beneficial  ownership  of  a  holder  and  its  affiliates  will  be  determined  in  accordance  with
Section 13(d) of the Exchange Act, and the rules and regulations of that section.

Conversion  Price Adjustment-Stock  Dividends  and  Stock  Splits.  If  we  pay  a  stock  dividend  or  otherwise  make  a  distribution
payable in Common Stock on our Common Stock or any Common Stock equivalents, subdivide or combine our outstanding Common
Stock, or reclassify our Common Stock in such a way that we issue additional shares of our capital stock, the conversion price will be
adjusted by multiplying the then-existing conversion price by a fraction, the numerator of which is the number of shares of Common
Stock outstanding immediately before the distribution, dividend, adjustment or recapitalization and the denominator of which is the
number of shares of Common Stock outstanding immediately after such action.

Fundamental Transaction. If we effect a “fundamental transaction” (as defined below), then upon any future conversion of the
Series X Preferred Stock, the holders will have the right to receive, for each share of Common Stock they would have received upon
such conversion, the same kind and amount of securities, cash or property as such holder would have been entitled to receive in the
fundamental  transaction  had  it  been  the  holder  of  Common  Stock  immediately  prior  to  the  fundamental  transaction.  The  term
“fundamental transaction” means any of the following:

● a merger or consolidation of the Company with or into another entity or any stock sale to, or other business combination in

which the Company is not the surviving entity;

● the sale of all or substantially all of our assets in one transaction or a series of related transactions;

● any completed tender offer or exchange offer involving holders of Common Stock in which more than 50% of the Common

Stock is converted or exchanged into other securities, cash or property, regardless of who makes such offer; or

● any  reclassification  of  Common  Stock  or  any  compulsory  share  exchange  by  which  our  Common  Stock  is  effectively

converted into or exchanged for other securities, cash or property (but not a reverse stock split).

If  the  holders  of  Common  Stock  are  given  a  choice  as  to  the  securities,  cash  or  property  to  be  received  in  a  fundamental

transaction, the holders of Series X Preferred Stock will be given the same choice on conversion of such holders’ shares.

Voting Rights. The Series X Preferred Stock has no voting rights, except to the extent expressly provided in our Certificate of
Incorporation or as otherwise required by law. However, so long as 2,502 shares of Series X Preferred Stock are outstanding, we may
not take any of the following actions without the affirmative consent of holders of a majority of the outstanding Series X Preferred
Stock:

● amend  our  Certificate  of  Incorporation,  By-laws  or  other  charter  documents  so  as  to  materially,  specifically  and  adversely

affect the preferences, rights, or privileges of the Series X Preferred Stock;

● issue  additional  shares  of  Series  X  Preferred  Stock  or  increase  or  decrease  the  number  of  authorized  shares  of  Series  X

Preferred Stock;

● sell, assign, monetize, pledge or otherwise divest or encumber our rights under any material license agreement, joint venture
or  other  partnership  agreement  to  which  we  are  a  party  as  of  the  date  of  this  offering  and  involving  any  drug  or  drug
candidate;

● issue or commit to issue any other equity securities, with certain exceptions;

● issue any equity-based award or compensation to certain of our officers, unless the award has been unanimously approved by
our compensation committee at a time when a designee appointed by the Series X Preferred holders is then serving on that
committee; or

● enter into any agreement or understanding to take any of the actions listed above.

Anti-takeover Effects of Provisions of our Certificate of Incorporation and By-laws and Delaware Law

Certificate of Incorporation and By-laws Provisions. Our Certificate of Incorporation authorizes our board of directors to issue
up  to  1,000,000  shares  of  Preferred  Stock  without  stockholder  approval  and  to  set  the  rights,  preferences  and  other  designations,
including voting rights, of those shares as the board of directors may determine. In addition, our By-laws require certain procedures to
be followed and time periods to be met for any stockholder to propose matters to be considered at annual meetings of stockholders,
including nominating directors for election at those meetings. Our By-laws also provide that our board of directors is able to elect a
director to fill a vacancy created by the expansion of the board of directors or due to the resignation or departure of an existing board
member.  Provisions  of  Delaware  law  and  our  Certificate  of  Incorporation  and  By-laws  could  make  the  acquisition  of  our  company
through a tender offer, a proxy contest or other means more difficult and could make the removal of incumbent officers and directors
more difficult. We expect these provisions to discourage coercive takeover practices and inadequate takeover bids and to encourage
persons seeking to acquire control of our company to first negotiate with our board of directors. We believe that the benefits provided
by  our  ability  to  negotiate  with  the  proponent  of  an  unfriendly  or  unsolicited  proposal  outweigh  the  disadvantages  of  discouraging
these proposals. We believe the negotiation of an unfriendly or unsolicited proposal could result in an improvement of its terms.

Delaware Law. We are subject to Section 203 of the DGCL, an anti-takeover law. In general, Section 203 prohibits a publicly
held  Delaware  corporation  from  engaging  in  a  “business  combination”  with  an  “interested  stockholder”  for  a  period  of  three  years
following the date the person became an interested stockholder, unless:

● prior to the date of the transaction, the board of directors of the corporation approved either the business combination or the

transaction which 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 commenced,
excluding for purposes of determining the number of shares outstanding (a) shares owned by persons who are directors and
also  officers,  and  (b)  shares  owned  by  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 subsequent to the date of the transaction, the business combination is approved by the board and authorized at an annual
or  special  meeting  of  stockholders,  and  not  by  written  consent,  by  the  affirmative  vote  of  at  least  66%  of  the  outstanding
voting stock which is not owned by the interested stockholder.

Generally, a “business combination” includes a merger, asset or stock sale, or other transaction resulting in a financial benefit to
the interested stockholder. An “interested stockholder” is a person who, together with affiliates and associates, beneficially owns, or is
an affiliate of the corporation and within three years prior to the determination of interested stockholder status did own, 15% or more
of a corporation’s outstanding voting securities. We expect the existence of this provision to have an anti-takeover effect with respect
to transactions our board of directors does not approve in advance.

Exhibit 10.10

November 1, 2022

Thomas Burns
VIA EMAIL/DOCUSIGN

Dear Thomas:

As you know, you are employed by XOMA Corporation (the “Company”) pursuant to the terms of an Officer Employment
Agreement  dated August  7,  2017,  as  amended  on April  1,  2022  (the  “Agreement”). You  and  the  Company  are  hereby  agreeing  to
amend the Agreement to modify the retention benefit contained therein, as set forth below (the “Amendment”).

Under the existing terms of the Agreement, in order to be eligible for the retention benefit, you must remain employed by the
Company for a twelve (12)-month period (the “Period”) following the first day of employment of the Company’s new Chief Executive
Officer. By the terms of this Amendment, the Period shall be accelerated to start on November 1, 2022.

Other than set forth herein, the terms of the Agreement shall remain in full force and effect.

This Amendment  forms  the  complete  and  exclusive  agreement  between  you  and  the  Company  with  respect  to  this  subject
matter. It supersedes any other agreements or promises made to you by anyone, whether oral or written, with respect to such subject
matter. Changes to the terms of this Amendment require a written modification signed by an officer of the Company. This Amendment
may  be  delivered  and  executed  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 shall be
deemed to have been duly and validly delivered and executed and be valid and effective for all purposes.

Please sign and date this letter and return it to me.

Sincerely,

Jim Neal
On behalf of the Board of Directors

Understood and Accepted:

/s/ Thomas Burns  
Thomas Burns

November 1, 2022     
Date

              
 
 
[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is
both (i) not material and (ii) is the type that the registrant treats as private or confidential.

XOMA CORPORATION
AMENDED AND RESTATED
RETENTION AND SEVERANCE PLAN

Exhibit 10.14

Section 1.

INTRODUCTION.

This XOMA Corporation Retention and Severance Plan (the “Plan”) is hereby established by the
Board of Directors of XOMA Corporation (the “Company”) effective as of January 1, 2022.  The purpose of the
Plan is to provide for retention bonuses and severance benefits to eligible employees of the Company under certain
specified conditions.  This Plan document also  is  the  Summary  Plan  Description  for  the  Plan.  Capitalized  terms
used but not defined herein shall have the meanings given to them in the Equity Plan (as defined below).

For purposes of the Plan, the following terms are defined as follows:

(a)

“Affiliate” means any corporation or limited liability company (other than the Company) in
an “unbroken chain of corporations and/or limited liability companies” beginning with the Company, if each of the
corporations  and/or  limited  liability  company  other  than  the  last  corporation or limited liability company in the
unbroken chain owns stock possessing 50% or more of the total combined voting power of all classes of stock or
limited liability company membership interests in one of the other corporations and/or limited liability companies
in such chain.

(b)

“Base  Salary”  means  base  pay  (excluding  incentive  pay,  premium  pay,  commissions,
overtime, bonuses and other forms of variable compensation) as in effect prior to any reduction that would give
rise to an employee’s right to a resignation for Good Reason (if applicable).

(c)

“Cause”  means  (1)  willful  material  fraud  or  material  dishonesty  in  connection  with  the
employee’s performance of his or her duties to the Company; (2) failure by the employee to materially perform his
or her duties; (3) material breach by the employee of his or her employment agreement with the Company or the
Company’s  Code  of  Ethics;  (4)  misappropriation  of  a  material  business  opportunity  of  the  Company;  (5)
misappropriation of any Company funds or property; or (6) conviction of, or the entering of a plea of guilty or no
contest with respect to, a felony.

(d)

“Code”  means  the  Internal  Revenue  Code  of  1986,  as  amended,  including  any  applicable

regulations and guidance thereunder.

(e)

(f)

(g)

“Committee” means the Compensation Committee of the Company’s Board of Directors.

“Company” means XOMA Corporation or any successor company.

“Confidentiality  Agreement”  means  the  employee’s  Proprietary  Information  and  Inventions

Agreement or any similar or successor document.

(h)

“Covered Termination” means, with respect to an employee, a Termination of Service that
is due to (1) a termination by the Company without Cause (and other than as a result of the employee’s death or
Disability)  or  (2)  the  employee’s  resignation  for  Good  Reason,  and  in  either  case  of  (1)  or  (2),  results  in  such
employee’s Separation from Service.

(i)

“Disability”  means  any  physical  or  mental  condition  which  renders  an  Eligible  Employee
incapable of performing the work for which he or she was employed by the Company or similar work offered by
the  Company  and  that  results  in  a  Termination  of  Service.  The  Disability  of  an  Eligible  Employee  shall  be
established if such Eligible Employee is, by reason of any medically determinable physical or mental impairment
expected  to  result  in  death  or  to  be  of  continuous  duration  of  not  less  than  twelve  (12)  consecutive  months  or
more, unable to perform his or her usual duties for the Company or its Affiliates.

(j)

“Eligible Employee” means an employee of the Company that meets the requirements to be

eligible to receive Plan benefits as set forth in Section 2.

(k)
Incentive and Stock Award Plan.

“Equity  Plan”  means  the  XOMA  Corporation  Amended  and  Restated  2010  Long  Term

(l)

“Good Reason” for an employee’s resignation means the occurrence of any of the following

actions are undertaken by the Company without the employee’s prior written consent:

reduction program applicable generally to XOMA’s employees);

(1)

a material reduction in such employee’s Base Salary (unless pursuant to a salary

a  material  reduction  in  such  employee’s  duties  (including  responsibilities  and/or
authorities), provided, however, that a change in job position (including a change in title) shall not be deemed a
“material reduction” in and of itself unless the employee’s new duties are materially reduced from the prior duties;

(2)

a  material  breach  by  the  Company  of  any  provision  of  this  Plan  or  any  other
material  agreement  between  such  employee  and  the  Company  concerning  the  terms  and  conditions  of  such
employee’s employment with the Company; or

(3)

(4)

a relocation of such employee’s principal place of employment with the Company
(or successor to the Company, if applicable) to a place that increases such employee’s one-way commute by more
than 30 miles as compared to such employee’s then- current principal place of employment immediately prior to
such relocation (excluding regular travel in the ordinary course of business); provided that this Section 1(l)(4) shall
not apply so long as the employee remains eligible following such relocation to live and work full-time outside of
such 30 mile radius as long as such employee performs his or her duties in a timely fashion.

3.

Notwithstanding  the  foregoing,  in  order  for  the  employee’s  resignation  to  be  deemed  to  have  been  for  Good
Reason,  the  employee  must  (a)  provide  written  notice  to  the  Company  of  such  employee’s  intent  to resign  for
Good Reason within 90 days after the first occurrence of the event giving rise to Good Reason, which notice shall
describe  the  event(s)  the  employee  believes  give  rise  to  Good  Reason;  (b)  allow  the  Company  at  least  60  days
from  receipt  of  the  written  notice  to  cure the event (such period, the “Cure Period”), and (c) if the event is not
reasonably cured within  the  Cure  Period,  then  the  employee  must  resign  from  all  positions  the  employee  then
holds  with the Company not later than one hundred eighty (180) days following the first occurrence of the event
giving rise to Good Reason.

(m)

“Participation Agreement” means an agreement between an employee and the Company in
substantially the form of APPENDIX A attached hereto, and which may include such other terms as the Committee
deems necessary or advisable in the administration of the Plan.

(n)

(o)

“Plan Administrator” means the Committee.

“Section  409A”  means  Section  409A  of  the  Code  and  the  treasury  regulations  and  other

guidelines thereunder and any state law of similar effect.

(p)

“Separation  from  Service”  means  a  “separation  from  service”  within  the  meaning  of

Treasury Regulations Section 1.409A-1(h), without regard to any alternative definition thereunder.

Section 2.

ELIGIBILITY FOR BENEFITS.

(a)

Eligible Employee.  An employee of the Company is eligible to participate in the Plan if (i)
the  Plan  Administrator  has  designated  such  employee  as  eligible  to  participate  in  the  Plan  by  providing  such
employee a Participation Agreement; (ii) such employee has signed and returned such Participation Agreement to
the  Company  within  the  time  period  required  therein;  and  (iii)  such  employee  meets  the  other  Plan  eligibility
requirements set forth in this Section 2. The determination of whether an employee is an Eligible Employee shall
be made by the Plan Administrator, in its sole discretion, and such determination shall be binding and conclusive on
all persons.

(b)

Release  Requirement.  Except  as  otherwise  provided  in  an  individual  Participation
Agreement, in order to be eligible to receive benefits under the Plan, the employee also must execute a general
waiver and release, in such a form as provided by the Company (the “Release”), within the applicable time period
set forth therein, and such Release must become effective in accordance with its terms, which must occur in no
event more than 60 days following the date of the applicable Covered Termination.

4.

(c)

Plan Benefits Provided In Lieu of Any Previous Benefits.  Except as otherwise provided
in an individual Participation Agreement, this Plan shall supersede any severance benefit plan, policy or practice
previously maintained by the Company with respect to an Eligible Employee and any severance benefits in any
individually negotiated employment contract or other agreement between the Company and an Eligible Employee,
excluding  the  terms  of  any  equity  award  grant  notices  and  agreements  governing  the  Eligible  Employee’s
outstanding equity awards that may apply upon termination of such employee’s service.  For avoidance of doubt,
the Eligible Employee’s  equity  awards  shall  remain  subject  to  the terms  and  conditions  of  the  applicable  equity
plan  or  equity  option  or  award  agreement  under  which  such  awards  were  granted  and  no  provision  of  this  Plan
shall be construed as to limit the actions that may be taken, or to violate the terms of such equity plan or equity
option  or  award  agreement.  Further  notwithstanding  the  foregoing  or  any  other  provision  of  this  Plan  or  the
applicable  Participation  Agreement,  no  vesting  and  extension  of  time  for  exercise  of  options  or  other  equity
awards upon the retirement of an Eligible Employee will be superseded or otherwise adversely affected by this Plan
or the applicable Participation Agreement in any way and the definition of Cause in this Plan shall supersede the definition of
Cause in any applicable equity option or award agreement.

(d)

Exceptions to Severance Benefit Entitlement.  An employee who otherwise is an Eligible
Employee  will  not  receive  benefits  under  the  Plan  in  the  following  circumstances,  as  determined  by  the  Plan
Administrator in its sole discretion:

(1)

The employee is terminated by the Company for any reason (including due to the
employee’s death  or Disability)  or voluntarily terminates employment  with  the  Company  in  any  manner,  and  in
either case, such termination does not constitute a Covered Termination. Voluntary terminations include, but are
not limited to, resignation or retirement.

The  employee  voluntarily  terminates  employment  with  the  Company  in  order  to
accept employment with another entity that is wholly or partly owned (directly or indirectly) by the Company or
an Affiliate.

(2)

(3)

The  employee  is  offered  an  identical  or  substantially  equivalent  or  comparable
position  with  the  Company  or  an  Affiliate.  For  purposes  of  this  Section  2(d),  a  “substantially  equivalent  or
comparable  position”  is  one  that  provides  the  employee  substantially  the  same  level  of  responsibility  and
compensation and would not give rise to the employee’s right to a resignation for Good Reason.

5.

(4)

The employee is offered immediate reemployment in a substantially equivalent or
comparable position by a successor to the Company or an Affiliate or by a purchaser of the Company’s assets, as
the case may be, following a Change in Control and the terms of such reemployment would not give rise to the
employee’s  right  to  a  resignation  for  Good  Reason.  For  purposes  of  the  foregoing,  “immediate  reemployment”
means that the employee’s employment with the successor to the Company or an Affiliate or the purchaser of its
assets, as the case may be, results in uninterrupted employment such that the employee does not incur a lapse in
pay or benefits as a result of the change in ownership of the Company or the sale of its assets. For the avoidance of
doubt, an employee who becomes immediately reemployed as described in this Section 2(d)(4) by a successor to
the Company or an Affiliate or by a purchaser of the Company’s assets, as the case may be, following a Change in
Control shall continue to be an Eligible Employee following the date of such reemployment.

The  employee  is  rehired  by  the  Company  or  an  Affiliate  in  a  substantially
equivalent  or  comparable  position  and  recommences  employment  prior  to  the  date  severance  benefits  under  the
Plan are scheduled to commence.

(5)

(e)

Termination  of  Severance  Benefits.  An  Eligible  Employee’s  right  to  receive  severance
benefits  under  this  Plan  shall  terminate  immediately  if,  at  any  time  prior  to  or  during  the  period  for  which  the
Eligible Employee is  receiving  severance  benefits  under  the  Plan,  the  Eligible  Employee  willfully  breaches  any
material  statutory,  common  law,  or  contractual  obligation  to  the  Company  or  an  Affiliate  (including,  without
limitation, the contractual obligations set forth in the Confidentiality Agreement and any other confidentiality, non-
disclosure and developments agreement, non-competition, non-solicitation, or similar type agreement between the
Eligible Employee and the Company, as applicable).

Section 3.

RETENTION BONUSES.

Eligible  Employees  will  receive  a  cash  retention  bonus  in  the  event  the  Eligible  Employee  remains
employed by the Company through the three (3)-month anniversary of November 1, 2022 (the “Initial Period”).
The cash bonus will be equal to 25% of the Base Salary paid to the Eligible Employee by the Company during the
Initial Period, less any standard and customary payroll deductions and withholdings. This bonus will be paid on
the first payroll date following the last day of the Initial Period.  In order to earn the bonus, the Eligible Employee
must remain employed through the last day of the Initial Period; provided, however, that if the Eligible Employee
is terminated by the Company without Cause or resigns for Good Reason, in either case during the Initial Period,
then the Eligible  Employee  will  remain  eligible  for  the  bonus  payment  as  set  forth  in  the  Eligible  Employee’s
Participation Agreement.

6.

Eligible Employees will receive a second cash retention bonus in the event the Eligible Employee remains
employed  by  the  Company  through  the  nine  (9)-month  period  immediately  following  the  Initial  Period  (the
“Extended Period”).  The cash bonus will be equal to 25% of the Base Salary paid to the Eligible Employee by the
Company during the Extended Period, less payroll deductions and withholdings.  This bonus will be paid on the
first payroll date following the last day of the Extended Period.  In order to earn the bonus, the Eligible Employee
must remain actively employed through the last day of the Extended Period; provided, however, that if the Eligible
Employee  is  terminated  by  the  Company  without  Cause  or  resigns  for  Good  Reason,  in  either  case  during  the
Extended Period, then the Eligible Employee will remain eligible for the bonus payment as set forth in the Eligible
Employee’s Participation Agreement.

Section 4.

SEVERANCE BENEFITS.

(a)

Benefits  in  Participation  Agreement.  Benefits  under  the  Plan  shall  be  provided  to  an

Eligible Employee as set forth in the Participation Agreement.

(b)

Additional  Benefits.  Notwithstanding  the  foregoing,  the  Committee  may,  in  its  sole
discretion, provide benefits to Company employees who are not Eligible Employees (“Non-Eligible Employees”)
chosen by the Plan Administrator, in its sole discretion, and the provision of any such benefits to a Non-Eligible
Employee shall in no way obligate the Company to provide such benefits to any other employee, even if similarly
situated.  If  benefits  under  the  Plan are provided to a Non-Eligible Employee, references in the Plan to “Eligible
Employee” (and similar references) shall be deemed to refer to such Non-Eligible Employee.

(c)

Certain Reductions.  In addition to Section 2(e) above, the Company, in its sole discretion,
shall  have  the authority to reduce  an  Eligible Employee’s  severance  benefits,  in  whole  or  in  part,  by  any  other
severance  benefits,  pay  and  benefits  provided  during  a  period  following  written  notice  of  a  business  closing  or
mass layoff, pay and benefits in lieu of such notice, or other similar benefits payable to the Eligible Employee by
the  Company  or  an  Affiliate  that  become  payable  in  connection  with  the  Eligible  Employee’s  termination  of
employment pursuant to (i) any applicable legal requirement, including, without limitation, the Worker Adjustment
and Retraining Notification Act or any other similar state law or (ii) any Company policy or practice providing for
the Eligible Employee to remain on the payroll for a limited period of time after being given notice of the termination of
the Eligible Employee’s employment, and the Plan Administrator shall so construe and implement the terms of the Plan.  Any
such reductions that the Company determines to make pursuant to this Section 4(c) shall be made such that any severance
benefit under the Plan shall be reduced solely by any similar type of benefit under such legal requirement, agreement, policy
or  practice  (i.e.,  any  cash  severance  benefits  under  the  Plan  shall  be  reduced  solely  by  any  cash  payments  or  severance
benefits under such legal requirement, agreement, policy or practice).  The Company’s decision to apply such reductions to the
severance  benefits  of  one  Eligible  Employee  and  the  amount of  such  reductions  shall  in  no  way  obligate  the  Company to
apply the same reductions in the same amounts to the severance benefits of any other Eligible Employee.  In the Company’s
sole  discretion,  such  reductions  may  be  applied  on  a  retroactive  basis,  with  severance  benefits  previously  paid  being  re-
characterized as payments pursuant to the Company’s statutory obligation.

7.

(d)

Parachute  Payments.  Except  as  otherwise  provided  in  an  individual  Participation
Agreement, if any payment or benefit an Eligible Employee will or may receive from the Company or otherwise (a
“Payment”) would (i) constitute a “parachute payment” within the meaning of Section 280G of the Code, and (ii)
but for this sentence, be subject to the excise tax imposed by Section 4999 of the Code (the “Excise Tax”), then
any such Payment shall be equal to the Reduced Amount.  The “Reduced Amount” shall be either (x) the largest
portion of the Payment that would result in no portion of the Payment (after reduction) being subject to the Excise
Tax or (y) the largest portion, up to and including the total, of the Payment, whichever amount (i.e., the amount
determined  by  clause  (x)  or  by  clause  (y)),  after  taking  into  account  all  applicable  federal,  state  and  local
employment taxes, income taxes, and the Excise Tax (all computed at the highest applicable marginal rate), results
in the Eligible Employee’s receipt, on an after-tax basis, of the greater economic benefit notwithstanding that all or
some portion of the Payment may be subject to the Excise Tax.  If a reduction in a Payment is required pursuant to
the preceding sentence and the Reduced Amount is determined pursuant to clause (x) of the preceding sentence, the
reduction shall occur in the manner (the “Reduction Method”) that results in the greatest economic benefit for the
Eligible Employee.  If more than one method of reduction will result in the same economic benefit, the items so
reduced will be reduced pro rata (the “Pro Rata Reduction Method”).

Notwithstanding any provisions in this Section above to the contrary, if the Reduction Method or the Pro
Rata  Reduction  Method  would  result  in  any  portion  of  the  Payment  being  subject  to  taxes  pursuant  to  Section
409A that would not otherwise be subject to taxes pursuant to Section 409A, then the Reduction Method and/or the
Pro Rata Reduction Method, as the case may be, shall be modified so as to avoid the imposition of taxes pursuant
to Section 409A as follows: (A) as a first priority, the modification shall preserve to the greatest extent possible,
the  greatest  economic  benefit  for  the  Eligible  Employee  as  determined  on  an  after-tax  basis;  (B)  as  a  second
priority,  Payments  that  are  contingent  on  future  events  (e.g.,  being  terminated  without  Cause),  shall  be  reduced
(or  eliminated)  before  Payments  that  are  not  contingent  on  future  events;  and (C) as a third priority, Payments
that  are  “deferred  compensation”  within  the  meaning  of  Section  409A  shall  be  reduced  (or  eliminated)  before
Payments that are not deferred compensation within the meaning of Section 409A.

The  Company  shall  appoint  a  nationally  recognized  accounting  or  law  firm  to  make  the  determinations
required  by  this  Section.  The  Company  shall  bear  all  expenses  with  respect  to  the  determinations  by  such
accounting or law firm required to be made hereunder.  If the Eligible Employee receives a Payment for which the
Reduced  Amount  was  determined  pursuant  to  clause  (x)  above  and  the  Internal  Revenue  Service  determines
thereafter that some portion of the Payment  is  subject  to  the  Excise  Tax,  Eligible  Employee  agrees  to  promptly
return to the Company a sufficient amount of the Payment (after reduction pursuant to clause (x) above) so that no
portion of the remaining Payment is subject to the Excise Tax.  For the avoidance of doubt, if the Reduced Amount
was determined pursuant to clause (y) above, the Eligible Employee shall have no obligation to return any portion
of the Payment pursuant to the preceding sentence.

8.

Section 5.

RETURN OF COMPANY PROPERTY.

An  Eligible  Employee  will  not  be  entitled  to  any  severance  benefit  under  the  Plan  unless  and  until  the
Eligible Employee returns all material Company Property.  For this purpose, “Company Property” means all paper
and  electronic  Company  documents  (and  all  copies  thereof)  and  other  Company  property  which  the  Eligible
Employee had in his or her possession or control at any time, including, but not limited to, Company files, notes,
drawings, records, plans, forecasts, reports, studies, analyses, proposals, agreements, financial information, research
and  development  information,  sales  and  marketing  information,  operational  and  personnel  information,
specifications,  code,  software,  databases,  computer-recorded  information,  tangible  property  and  equipment
(including, but not limited to, computers, mobile telephones), credit cards, entry cards, identification badges and
keys; and any materials of any kind which contain or embody any proprietary or confidential information of the
Company (and all reproductions thereof in whole or in part).  As a condition to receiving benefits under the Plan, an
Eligible Employee must not make or retain copies, reproductions or summaries of any such Company documents,
materials  or  property.  However,  an  Eligible  Employee  is  not  required  to  return  his  or  her  personal  copies  of
documents evidencing the Eligible Employee’s hire, termination, compensation, benefits and stock options and any
other documentation received as a stockholder of the Company.

Section 6.

TIME OF PAYMENT AND FORM OF BENEFITS.

The  Company  reserves  the  right  in  the  Participation Agreement  to  specify  whether  payments  under  the
Plan  will  be  paid  in  a  single  sum,  in  installments,  or  in  any  other  form  and  to  determine  the  timing  of  such
payments.  All such payments under the Plan will be subject to applicable withholding for federal, state, foreign,
provincial  and local taxes.  All benefits provided  under  the  Plan  are  intended  to  satisfy  the  requirements  for  an
exemption  from  application  of  Section  409A  to  the  maximum  extent  that  an  exemption  is  available  and  any
ambiguities herein shall be interpreted accordingly; provided, however, that to the extent such an exemption is not
available, the benefits provided under the Plan are intended to comply with the requirements of Section 409A to
the extent necessary to avoid adverse personal tax consequences and any ambiguities herein shall be interpreted
accordingly.

It is intended that (i) each installment of any benefits payable under the Plan to an Eligible Employee be
regarded  as  a  separate  “payment”  for  purposes  of  Treasury  Regulations  Section  1.409A-2(b)(2)(i),  (ii)  all
payments  of  any  such  benefits  under  the  Plan  satisfy,  to  the  greatest  extent  possible,  the  exemptions  from  the
application  of  Section  409A  provided  under  Treasury  Regulations  Sections  1.409A-1(b)(4),  1.409A-1(b)(5)  and
1.409A-1(b)(9)(iii),  and  (iii)  any  such  benefits consisting of COBRA premiums also satisfy, to the greatest extent
possible,  the  exemption  from  the  application  of  Section  409A  provided  under  Treasury  Regulations  Section
1.409A-  1(b)(9)(v).  However,  if  the  Company  determines  that  any  severance  benefits  payable  under  the  Plan
constitute “deferred compensation” under Section 409A and the Eligible Employee is a “specified employee” of
the Company, as such term is defined in Section 409A(a)(2)(B)(i), then, solely to the extent necessary to avoid the
imposition of the adverse personal tax consequences under Section 409A, (A) the timing of such severance benefit
payments  shall  be  delayed  until  the  earlier  of  (1)  the  date  that  is  six  months  and  one  day  after  the  Eligible
Employee’s Separation from Service and (2) the date of the Eligible Employee’s death (such applicable date, the
“Delayed Initial Payment Date”), and (B) the Company shall (1) pay the Eligible Employee a lump sum amount
equal  to  the  sum  of  the  severance  benefit  payments  that  the  Eligible  Employee  would  otherwise  have  received
through the Delayed

9.

Initial Payment Date if the commencement of the payment of the severance benefits had not been delayed pursuant
to this paragraph and (2) commence paying the balance, if any, of the severance benefits in accordance with the
applicable payment schedule.

In  no  event  shall  payment  of  any  severance  benefits  under  the  Plan  be  made  prior  to  an Eligible
Employee’s Separation from Service or prior to the effective date of the Release.  If the Company determines that
any  severance  payments  or  benefits  provided  under  the  Plan  constitute  “deferred  compensation”  under  Section
409A, and the Eligible Employee’s Separation from Service occurs at a time during the calendar year when the
Release could become effective in the calendar year following the calendar year in which the Eligible Employee’s
Separation from  Service  occurs,  then  regardless  of  when  the  Release  is  returned  to  the  Company  and  becomes
effective,  the  Release  will  not  be  deemed  effective,  solely  for  purposes  of  the  timing  of  payment  of  severance
benefits  under  this  Plan,  any  earlier  than  the  latest  permitted  effective  date  (the  “Release  Deadline”).  If  the
Company  determines  that  any  severance  payments  or  benefits  provided  under  the  Plan  constitute  “deferred
compensation”  under  Section  409A,  then  except  to  the extent that severance payments may be delayed until the
Delayed Initial Payment Date pursuant to the preceding paragraph, on the first regular payroll date following the
effective date of an Eligible Employee’s Release, the Company shall (1) pay the Eligible Employee a lump sum
amount  equal  to  the  sum  of  the  severance  benefit  payments  that  the  Eligible  Employee  would  otherwise  have
received through such payroll date but for the delay in payment related to the effectiveness of the Release and (2)
commence paying the balance, if any, of the severance benefits in accordance with the applicable payment schedule.

Section 7.

TRANSFER AND ASSIGNMENT.

The  rights  and  obligations  of  an  Eligible  Employee  under  this  Plan  may  not  be  transferred  or  assigned
without the prior written consent of the Company.  This Plan shall be binding upon any entity or person who is a
successor  by  merger,  acquisition,  consolidation  or  otherwise  to  the  business carried on by the Company without
regard to whether or not such  entity  or person  actively  assumes the obligations hereunder as required under  the
Equity Plan and without regard to whether or not a Change in Control occurs.

Section 8.

MITIGATION.

Except  as  otherwise  specifically  provided  in  the  Plan,  an  Eligible  Employee  will  not  be  required  to
mitigate  damages  or  the  amount  of  any  payment  provided  under  the  Plan  by  seeking  other  employment  or
otherwise,  nor  will  the  amount  of  any  payment  provided  for  under  the  Plan  be  reduced  by  any  compensation
earned  by  an  Eligible  Employee  as  a  result  of  employment  by  another  employer  or  any  retirement  benefits
received by such Eligible Employee after the date of the Eligible Employee’s termination of employment with the
Company.

10.

Section 9.

CLAWBACK; RECOVERY.

All payments and severance benefits provided under the Plan will be subject to recoupment in accordance
with any clawback policy that the Company is required to adopt pursuant to the listing standards of any national
securities exchange or association on which the Company’s securities are listed or as is otherwise required by the
Dodd-Frank  Wall  Street  Reform  and  Consumer  Protection  Act  or  other  applicable  law.  No  recovery  of
compensation  under  such  a  clawback  policy  will  be  an  event  giving  rise  to  a  right  to  resign  for  Good  Reason,
constructive termination, or any similar term under any plan of or agreement with the Company.

Section 10.

RIGHT TO INTERPRET AND ADMINISTER PLAN; AMENDMENT AND TERMINATION.

(a)

Interpretation and Administration.  The Committee shall be the Plan Administrator and
shall have the exclusive discretion and authority to establish rules, forms, and procedures for the administration of
the Plan and to construe and interpret the Plan and to decide any and all questions of fact, interpretation, definition,
computation or administration arising in connection with the operation of the Plan, including, but not limited to, the
eligibility  to  participate  in  the  Plan  and  amount  of  benefits  paid  under  the  Plan.  The  rules,  interpretations,
computations and other actions of the Committee shall be binding and conclusive on all persons.

(b)

Amendment.  The  Plan Administrator reserves  the  right to amend this  Plan  at  any  time;
provided, however, that any amendment of the Plan will not be effective as to a particular employee who is or may
be  adversely  impacted  by  such  amendment  and  has  an  effective  Participation  Agreement  without  the  written
consent of such employee.

(c)

Termination.  Unless  otherwise  extended  by  the  Committee,  the  Plan  will  automatically

terminate following satisfaction of all the Company’s obligations under the Plan.

Section 11.

NO IMPLIED EMPLOYMENT CONTRACT.

The Plan shall not be deemed (i) to give any employee or other person any right to be retained in the
employ  of  the  Company  or  (ii)  to  interfere  with  the  right  of  the  Company  to  discharge  any  employee  or  other
person at any time, with or without cause, which right is hereby reserved.  This Plan does not modify the at-will
employment status of any Eligible Employee.

Section 12.

LEGAL CONSTRUCTION.

This Plan is intended to be governed by and shall be construed in accordance with the Employee
Retirement Income Security Act of 1974 (“ERISA”) and, to the extent not preempted by ERISA, the laws of the
State of California.

Section 13.

CLAIMS, INQUIRIES AND APPEALS.

(a)

Applications for Benefits and Inquiries.  Any application for benefits, inquiries about the
Plan or inquiries about present or future rights under the Plan must be submitted to the Plan Administrator in writing
by an applicant (or his or her authorized representative).  The Plan Administrator is:

11.

XOMA Corporation
Compensation Committee of the Board of Directors
Attention to: Corporate Secretary
2200 Powell Street, Suite 310
Emeryville, CA 94608

(b)

Denial  of  Claims.  In  the  event  that  any  application  for  benefits  is  denied  in  whole  or  in
part,  the  Plan  Administrator  must  provide  the  applicant  with  written  or  electronic  notice  of  the  denial  of  the
application,  and  of  the  applicant’s  right  to  review  the  denial.  Any  electronic  notice  will  comply  with  the
regulations of  the  U.S.  Department  of  Labor.  The  notice  of  denial  will be  set forth in  a manner designed  to be
understood by the applicant and will include the following:

(1)

(2)

(3)

the specific reason or reasons for the denial;

references to the specific Plan provisions upon which the denial is based;

a description of any additional information or material that the Plan Administrator

needs  to  complete  the  review  and  an  explanation  of  why  such  information  or material is necessary; and

an explanation of the Plan’s review procedures and the time limits applicable to such
procedures, including a statement  of the applicant’s right to bring a  civil action  under  Section 502(a)  of ERISA
following a denial on review of the claim, as described in Section 13(d) below.

(4)

This  notice  of  denial  will  be  given  to  the  applicant  within  90  days  after  the  Plan Administrator
receives  the  application,  unless  special  circumstances  require  an  extension  of  time,  in  which  case,  the  Plan
Administrator has up to an additional 90 days for processing the application.  If an extension of time for processing
is required, written notice of the extension will be furnished to the applicant before the end of the initial 90 day
period.

This  notice  of  extension  will  describe  the  special  circumstances  necessitating  the  additional  time

and the date by which the Plan Administrator is to render its decision on the application.

(c)

Request for a Review.  Any person (or that person’s authorized representative) for whom
an application for benefits is denied, in whole or in part, may appeal the denial by submitting a request for a review
to the Plan Administrator within 60 days after the application is denied.  A request for a review shall be in writing
and shall be addressed to:

XOMA Corporation
Compensation Committee of the Board of Directors
Attention to: Corporate Secretary
2200 Powell Street, Suite 310
Emeryville, CA 94608

12.

A request for review must set forth all of the grounds on which it is based, all facts in support of the request and
any other matters that the applicant feels are pertinent.  The applicant (or his or her representative) shall have the
opportunity  to  submit  (or  the  Plan  Administrator  may  require  the  applicant  to  submit)  written  comments,
documents, records, and other information relating to his or her claim.  The applicant (or his or her representative)
shall be provided, upon request and free of charge, reasonable access to, and copies of, all documents, records and
other  information  relevant  to  his  or  her  claim.  The  review  shall  take  into  account  all  comments,  documents,
records and other information submitted by the applicant (or his or her representative) relating to the claim, without
regard to whether such information was submitted or considered in the initial benefit determination.

(d)

Decision on Review.  The Plan Administrator will act on each request for review within 60
days  after  receipt  of  the  request,  unless  special  circumstances  require  an  extension  of  time  (not  to  exceed  an
additional 60 days), for processing the request for a review.  If an extension for review is required, written notice of
the  extension  will  be  furnished  to  the  applicant  within  the  initial  60  day  period.  This  notice  of  extension  will
describe the special circumstances necessitating the additional time and the date by which the Plan Administrator is
to render its decision on the review.  The Plan Administrator will give prompt, written or electronic notice of its
decision to the applicant. Any electronic notice will comply with the regulations of the U.S. Department of Labor.
In the event that the Plan Administrator confirms the denial of the application for benefits in whole or in part, the
notice will set forth, in a manner calculated to be understood by the applicant, the following:

(1)

(2)

the specific reason or reasons for the denial;

references to the specific Plan provisions upon which the denial is based;

a  statement  that  the  applicant  is  entitled  to  receive,  upon  request  and  free  of
charge,  reasonable  access  to,  and  copies  of,  all  documents,  records  and  other  information relevant to his or her claim;
and

(3)

ERISA.

(4)

a  statement  of  the  applicant’s  right to bring a civil  action under Section 502(a) of

(e)

Rules  and  Procedures.  The  Plan  Administrator  will  establish  rules  and  procedures,
consistent  with  the  Plan  and  with  ERISA,  as  necessary  and  appropriate  in  carrying  out  its  responsibilities  in
reviewing  benefit  claims.  The  Plan  Administrator  may  require  an  applicant  who  wishes  to  submit  additional
information in connection with an appeal from the denial of benefits to do so at the applicant’s own expense.

13.

(f)

Exhaustion of Remedies.  No legal action for benefits under the Plan may be brought until
the applicant (i) has submitted a written application for benefits in accordance with the procedures described by
Section 13(a) above, (ii) has been notified by the Plan Administrator that the application is denied, (iii) has filed a
written request for a review of the application in accordance with the appeal procedure described in Section 13(c)
above,  and  (iv)  has  been  notified  that  the  Plan  Administrator  has  denied  the  appeal.  Notwithstanding  the
foregoing,  if  the  Plan  Administrator  does  not  respond  to  an  Eligible  Employee’s  claim  or  appeal  within  the
relevant time limits specified in this Section 13, the Eligible Employee may bring legal action for benefits under
the Plan pursuant to Section 502(a) of ERISA.

Section 14.

BASIS OF PAYMENTS TO AND FROM PLAN.

The Plan shall be unfunded, and all cash payments under the Plan shall be paid only from the general

assets of the Company.

Section 15.

OTHER PLAN INFORMATION.

(a)

Employer  and  Plan  Identification  Numbers.  The  Employer  Identification  Number
assigned  to  the Company  (which  is  the  “Plan Sponsor”  as that term is  used  in ERISA) by the Internal Revenue
Service is 52-2154066.  The Plan Number assigned to the Plan by the Plan Sponsor pursuant to the instructions of
the Internal Revenue Service is 510.

(b)

Ending Date for Plan’s Fiscal Year.  The date of the end of the fiscal year for the purpose of

maintaining the Plan’s records is December 31.

(c)

Agent  for the  Service  of  Legal Process.  The  agent  for  the  service  of  legal  process  with

respect to the Plan is:

XOMA Corporation
Compensation Committee of the Board of Directors
Attention to: Corporate Secretary
2200 Powell Street, Suite 310
Emeryville, CA 94608

In addition, service of legal process may be made upon the Plan Administrator.

(d)

Plan Sponsor.  The “Plan Sponsor” is:

XOMA Corporation
Compensation Committee of the Board of Directors
Attention to: Corporate Secretary
2200 Powell Street, Suite 310
Emeryville, CA 94608

14.

(e)

Plan Administrator.  The Plan Administrator is the Committee.  The Plan Administrator’s

contact information is:

XOMA Corporation
Compensation Committee of the Board of Directors
Attention to: Corporate Secretary
2200 Powell Street, Suite 310
Emeryville, CA 94608

The Plan Administrator is the named fiduciary charged with the responsibility for administering the Plan.

Section 16.

STATEMENT OF ERISA RIGHTS.

Participants  in  this  Plan  are  entitled  to  certain  rights  and  protections  under  ERISA.  If  you  are  an

Eligible Employee, you are considered a participant in the Plan and, under ERISA, you are entitled to:

(a)

Receive Information About Your Plan and Benefits

(1)

Examine,  without  charge,  at  the  Plan  Administrator’s  office  and  at  other  specified
locations, such as worksites, all documents governing the Plan and a copy of the latest annual report (Form 5500
Series), if applicable, filed by the Plan with the U.S. Department of Labor and available at the Public Disclosure
Room of the Employee Benefits Security Administration;

(2)

Obtain,  upon  written  request  to  the  Plan  Administrator,  copies  of  documents
governing the operation of the Plan and copies of the latest annual report (Form 5500 Series), if applicable, and an
updated  (as  necessary)  Summary  Plan  Description.  The  Administrator  may  make  a  reasonable  charge  for  the
copies; and

Administrator is required by law to furnish each Eligible Employee with a copy of this summary annual report.

(3)

Receive  a  summary  of  the  Plan’s  annual  financial  report,  if  applicable.  The  Plan

(b)

Prudent  Actions  by  Plan  Fiduciaries.  In  addition  to  creating  rights  for  Plan  Eligible
Employees, ERISA imposes duties upon the people who are responsible for the operation of the employee benefit
plan.  The people who operate the Plan, called “fiduciaries” of the Plan, have a duty to do so prudently and in the
interest of you and other Eligible Employees and beneficiaries.  No one, including your employer, your union or
any other person, may fire you or otherwise discriminate against you in any way to prevent you from obtaining a
Plan benefit or exercising your rights under ERISA.

(c)

Enforce Your Rights.  If your claim for a Plan benefit is denied or ignored, in whole or in
part, you have a right to know why this was done, to obtain copies of documents relating to the decision without
charge, and to appeal any denial, all within certain time schedules.

15.

Under ERISA, there are steps you can take to enforce the above rights.  For instance, if you
request a copy of Plan documents or the latest annual report from the Plan, if applicable, and do not receive them
within 30 days, you may file suit in a Federal court.  In such a case, the court may require the Plan Administrator to
provide the materials and pay you up to $110 a day until you receive the materials, unless the materials were not sent
because of reasons beyond the control of the Plan Administrator.

suit in a state or Federal court.

If you have a claim for benefits which is denied or ignored, in whole or in part, you may file

If you are discriminated against for asserting your rights, you may seek assistance from the
U.S. Department of Labor, or you may file suit in a Federal court.  The court will decide who should pay court
costs and legal fees.  If you are successful, the court may order the person you have sued to pay these costs and
fees.  If  you  lose,  the  court  may  order  you  to  pay  these  costs  and  fees,  for  example,  if  it  finds  your  claim  is
frivolous.

(d)

Assistance  with  Your  Questions.  If  you  have  any  questions  about  the  Plan,  you  should
contact the Plan Administrator.  If you have any questions about this statement or about your rights under ERISA,
or if you need assistance in obtaining documents from the Plan Administrator, you should contact the nearest office
of the Employee Benefits Security Administration, U.S. Department of Labor, listed in your telephone directory or
the Division of Technical Assistance and Inquiries, Employee Benefits Security Administration, U.S. Department
of Labor, 200 Constitution Avenue N.W., Washington, D.C. 20210.  You may also obtain certain publications about
your rights and responsibilities under ERISA by calling the publications hotline of the Employee Benefits Security
Administration.

16.

APPENDIX A PARTICIPATION

AGREEMENT

Name:

__________

Section 1.

ELIGIBILITY.

You  have  been  designated  as  eligible  to  participate  in  the  XOMA  Corporation  Retention  and  Severance
Plan (the “Plan”), a copy of which is attached to this Participation Agreement (the “Participation Agreement”).
Capitalized terms not explicitly defined in this Participation Agreement but defined in the Plan shall have the same
definitions as in the Plan.  You will receive the benefits set forth below if you meet all the eligibility requirements
set forth in the Plan, including, without limitation, executing the required Release within the applicable time period
set forth therein and allowing such Release to become effective in accordance with its terms. Notwithstanding the
schedule for provision of benefits as set forth below, the schedule and timing of payment of any benefits under this
Participant Agreement is subject to any delay in payment that may be required under the Plan.

Section 2.

SEVERANCE BENEFITS.1

If  you are terminated in a  Covered Termination,  you  will receive  the severance  benefits  set  forth  in  this

Section 2.  All severance benefits described herein are subject to standard deductions and withholdings.

(a)

Base  Salary.  You  shall  receive  a  cash  payment  in  an  amount  equal  to [*] months (the
“Severance Period”) of payment of your then-applicable Base Salary.  The  Base  Salary  payment  will  be  paid  to
you in a lump sum cash payment no later than the second regular payroll date following the effective date of the
Release, but in any event not later than March 15 of the year following the year in which your Separation from
Service occurs.

(b)

Bonus Payment.  You will be entitled to payment of [*] of your annual target cash bonus
for the year in which your Covered Termination occurs (the “Annual Target Bonus Severance Payment”).  The
Annual  Target  Bonus  Severance  Payment  shall  be  paid  in  a  lump  sum  cash  payment  no  later  than  the  second
regular payroll date following the effective date of the Release, but in any event not later than March 15 of the
year following the year in which your Separation from Service occurs.

1 Severance  benefits  to  be  omitted  from  participation  agreement  for  CFO,  other  than  paragraph  (c) (Retention Bonus
Payment).

17.

 
(c)

Retention  Bonus  Payment.  If  your  Covered Termination  occurs  during  the  Initial  Period
(as such term is defined in the Plan), then you will receive payment of the retention bonus that you would have
received had you remained employed through the last day of the Initial Period. And if your Covered Termination
occurs  during  the  Extended  Period  (as  such  term  is  defined  in  the  Plan),  then  you  will  receive  payment  of  the
retention bonus that you would have received had you remained employed through the last day of the Extended
Period. Any bonus paid to you under this Section will be paid to you at the same time as the severance payment set
forth in Section 2(a) above.

(d)

Payment of Continued Group Health Plan Benefits. If you timely elect continued group
health  plan  continuation  coverage  under  the  Consolidated  Omnibus  Budget  Reconciliation  Act  of  1985
(“COBRA”)  following  your  Covered  Termination  date,  the  Company  shall  pay  directly  to  the  carrier  the  full
amount  of  your  COBRA  premiums  on  behalf  of  you  for  your  continued  coverage  under  the  Company’s  group
health  plans,  including  coverage  for  your  eligible  dependents,  until  the  earliest  of  (i)  the  end  of  the  Severance
Period following the date of your Covered Termination, (ii) the expiration of your eligibility for the continuation
coverage under COBRA, or (iii) the date when you become eligible for substantially equivalent health insurance
coverage in connection with new employment  (such period from your termination date through the earliest of (i)
through  (iii),  the  “COBRA  Payment  Period”).  Upon  the  conclusion  of  such  period  of  insurance  premium
payments made by the Company, you will be responsible for the entire payment of premiums (or payment for the
cost of coverage) required under COBRA for the duration of your eligible COBRA coverage period, if any.  You
agree to promptly notify the Company as soon as you become eligible for health insurance coverage in connection
with new employment or self-employment.

Notwithstanding the foregoing, if at any time the Company determines, in its sole discretion, that it cannot
provide the COBRA premium benefits without potentially incurring financial costs or penalties under applicable
law (including, without limitation, Section 2716 of the Public Health Service Act), then in lieu of paying COBRA
premiums  directly  to  the  carrier  on  your  behalf,  the  Company  will  instead  pay  you  on  the  last  day  of  each
remaining month of the COBRA Payment Period a fully taxable cash payment equal to the value of your monthly
COBRA premium for the first month of COBRA coverage, subject to applicable tax withholding (such amount, the
“Special Severance  Payment”),  such Special  Severance  Payment to be made without  regard to your election of
COBRA coverage or payment of COBRA premiums and without regard to your continued eligibility for COBRA
coverage during the COBRA Payment Period.  Such Special Severance Payment shall end upon expiration of the
COBRA Payment Period.

(e)

Equity Acceleration.  The  vesting  and  exercisability  of  each  outstanding  unvested  stock
option and other stock award, as applicable, that you hold covering Company common stock as of the date of your
Covered Termination (each, an “Equity Award”) that is subject to time-vesting shall be accelerated in full and any
reacquisition or repurchase rights held by the Company in respect of Company common stock issued pursuant to
any time-vesting Equity Award granted to you shall lapse in full.  In addition, the Company will extend the period
of time in which you may exercise any vested outstanding and unexercised stock options or other equity awards
(including  those  vested  pursuant  to  the  previous  sentence)  through  the  applicable  expiration  date(s)  of  your
options.

18.

(f)

Outplacement.    The  Company  will  pay  (directly  to  the  outplacement  provider  of your

choice) up to [*] in outplacement assistance for you.

To accept the terms of this Participation Agreement and participate in the Plan, please sign and date this
Participation Agreement in the space provided below and return it to
no later than 

, 

.

Eligible Employee

[Insert Name]

Date:

19.

  
  
 
 
OFFICER EMPLOYMENT AGREEMENT

Exhibit 10.15

This Officer Employment Agreement (“Agreement”) between Owen Hughes (“Employee”) and XOMA Corporation (“XOMA”
or “the Company”) (collectively, the “Parties”) is effective as of January 1, 2023 (the “Agreement Effective Date”).

1.

Employment.  Employee’s  employment  with  XOMA  in  the  position  of  Executive  Chairman  and  Interim  Chief
Executive Officer shall commence on the Agreement Effective Date. Employee’s employment with XOMA will be governed by
the terms set forth in this Agreement.

2.

Position and Responsibilities. Employee shall be employed on a part-time basis, averaging approximately 30-40
hours  per  month,  reporting  to  the  Board  of  Directors  (the  “Board”).    While  employed  by  XOMA,  Employee  may  not  accept
consulting  or  other  business  or  non-profit  opportunities  without  first  obtaining  written  approval  from  the  Board.  In  addition,
while employed by XOMA, except on behalf of XOMA, Employee will not directly or indirectly serve as an officer, director,
stockholder,  employee,  partner,  proprietor,  investor,  joint  venturer,  associate,  representative  or  consultant  of  any  other  person,
corporation,  firm,  partnership  or  other  entity  whatsoever  known  by  Employee  to  compete  with  XOMA  (or  that  is  planning  or
preparing to compete with XOMA), anywhere in the world, in any line of business engaged in (or planned to be engaged in) by
XOMA; provided, however, that Employee may purchase or otherwise acquire up to (but not more than) five percent (5%) of any
class of securities of any enterprise (but without participating in the activities of such enterprise) if such securities are listed on
any national or regional securities exchange.

3.

Term of Employment. The term of Employee’s employment with XOMA shall be the period from the Agreement
Effective Date until Employee’s employment is terminated pursuant to Section 7. It is anticipated that Employee will serve as
Interim Chief Executive Officer for a period of one (1) year while the Company recruits a new Chief Executive Officer.  Upon
the  new  Chief  Executive  Officer  commencing  employment  with  the  Company,  Employee’s  employment  will  automatically
terminate  and  Employee  will  cease  serving  as  Executive  Chair,  however  Employee  will  remain  a  member  of  the  Board  of
Directors.

4.

Compensation and Reimbursement of Expenses.

(a)

Compensation. Employee will receive for services to be rendered hereunder a base salary paid at the rate
of $125,000 per year, less applicable payroll deductions and withholdings (the “Base Salary”), paid on XOMA’s ordinary payroll
cycle. In addition, Employee shall be eligible to participate in XOMA’s Corporate Achievement Goals plan (“CAGs”), as it may
be  amended  from  time  to  time  in  accordance  with  its  terms,  with  an  initial  target  rate  of  55%  of  Base  Salary,  which  can  be
adjusted from time to time by the Board.

(b)

Equity  Awards.    Subject  to  approval  by  the  Board,  the  Company  will  grant  Employee  a  non-qualified
option to purchase 100,000 shares of the Company’s common stock with an exercise price equal to the fair market value of the
common stock (the “FMV Option”).  The FMV Option shall vest in four equal installments on March 31, 2023, June 30, 2023,
September 30, 2023 and December 31, 2023 (subject to Employee’s continuous service).  In addition, subject to approval by the
Board, the Company will grant Employee a non-qualified

-1-

option to purchase 75,000 shares of the Company’s common stock with an exercise price equal to $30 per share (the “Additional
Option”).    The Additional  Option  shall  vest  monthly  over  three  years  (subject  to  Employee’s  continuous  service).    The  FMV
Option  and  the  Additional  Option  shall  be  issued  outside  of,  but  subject  in  all  respects  to  the  terms  and  conditions  of  the
Company’s  Equity  Incentive  Plan  (the  “Plan”),  and  shall  be  governed  in  all  respects  by  the  terms  of  the  Plan  as  if  granted
thereunder, the grant notice and the option agreement. The Company intends for the FMV Option and the Additional Option to
each  be  a  material  inducement  to  Employee  entering  into  employment  with  the  Company  within  the  meaning  of  Listing  Rule
5635(c)(4) of The Nasdaq Stock Market LLC.  Employee may be eligible for additional annual equity grants at the discretion of
the Board.  

(c)

Reimbursement  of  Expenses.  XOMA  shall  reimburse  Employee  for  all  reasonable  travel  and  other

expenses incurred in performing Employee’s obligations under this Agreement in a manner consistent with XOMA policies.

5.

Participation  in  Benefit  Plans.  Employee  shall  not  be  eligible  for  benefits  under  any  employee  benefit  plan  of

XOMA due to his part-time status, except as required by law.

6.

Compliance  with  Proprietary  Information Agreement  and  XOMA  Policies. As  a  condition  of  employment  with
XOMA, Employee must sign and comply with the Employee Confidential Information and Inventions Assignment Agreement
attached  hereto  as  Exhibit  A  (the  “Confidentiality  Agreement”),  which  prohibits  unauthorized  use  or  disclosure  of  XOMA
proprietary information, among other obligations. In addition, Employee is required to abide by XOMA’s policies and procedures
(including  but  not  limited  to  XOMA’s  Employee  Handbook),  as  adopted  or  modified  from  time  to  time  within  XOMA’s
discretion; provided, however, that in the event the terms of this Agreement differ from or are in conflict with XOMA’s general
employment policies or practices, this Agreement shall control.

7.

Termination of Employment; Severance.

(a)

Termination. Consistent with XOMA policy, Employee’s employment relationship with XOMA is at-will.
Accordingly, Employee may resign Employee’s employment with XOMA at any time and for any reason whatsoever simply by
notifying  XOMA;  and  XOMA  may  terminate  Employee’s  employment  at  any  time,  with  or  without  cause  or  advance  notice.
  Employee’s  employment  will  automatically  end  upon  a  new  Chief  Executive  Officer  commencing  employment  with  the
Company (unless Employee and XOMA mutually agree otherwise).

(b)

Severance.    If  Employee’s  employment  automatically  terminates  due  to  a  new  Chief  Executive  Officer
commencing  employment  within  one  (1)  year  after  the  Agreement  Effective  Date,  then  provided  that  such  termination  of
employment  constitutes  a  “separation  from  service”  under Treas.  Reg.  Section  1.409A-1(h),  the  Company  will  pay  Employee
severance in the form of Base Salary continuation at the rate then in effect through the one-year anniversary of the Agreement
Effective Date.  Such severance payments will be paid on the Company’s ordinary payroll dates (starting on the first payroll date
after the Release Agreement (defined below) becomes effective) and will be subject to standard deductions and withholdings.  As
a  condition  receiving  such  severance  benefits,  Employee  shall  execute  and  deliver  to  XOMA  a  release  of  claims  in  favor  of
XOMA substantially in the form attached hereto as Exhibit B (the “Release

-2-

Agreement”)  within  the  timeframe  set  forth  in  the  Release  Agreement,  but  not  later  than  forty-five  (45)  days  following
Employee’s employment termination date, and allow the Release Agreement to become effective according to its terms (by not
invoking any legal right to revoke it) within any applicable time period set forth in the Release Agreement.  If the period during
which Employee may elect to execute the Release and have it become effective may occur in more than one taxable year, then
the first payroll date after the Release Agreement becomes effective will be deemed to occur in the second of such taxable years.
 Any such severance payments that would have been made from the date of such termination to the first payroll date following
the effective date of the Release will be made on such first payroll date.

8.

Binding  Agreement.  This  Agreement  shall  be  binding  upon,  and  inure  to  the  benefit  of,  the  Parties  and  their

respective permitted successors and assigns.

9.

Compliance with Section 409A of the Code.

(a)

It  is  intended  that  this  Agreement  will  comply  with  Section  409A  of  the  Code  and  its  regulations  and
guidelines (collectively, “Section 409A”), to the extent the Agreement is subject to Section 409A, and the Agreement shall be
interpreted on a basis consistent with such intent. If an amendment of the Agreement is necessary in order for it to comply with
Section 409A, the Parties will negotiate in good faith to amend the Agreement in a manner that preserves the original intent of
the Parties to the extent reasonably possible. No action or failure to act under this Section 9 shall subject XOMA to any claim,
liability, or expense, and XOMA shall not have any obligation to indemnify or otherwise protect Employee from the obligation to
pay any taxes, interest or penalties under Section 409A.

(b) With  respect  to  any  reimbursement  or  in-kind  benefit  arrangements  of  XOMA  and  its  subsidiaries  that
constitute deferred compensation for purposes of Section 409A, except as otherwise permitted by Section 409A, the following
conditions  shall  be  applicable:  (A)  the  amount  eligible  for  reimbursement,  or  in-kind  benefits  provided,  under  any  such
arrangement in one calendar year may not affect the amount eligible for reimbursement, or in-kind benefits to be provided, under
such  arrangement  in  any  other  calendar  year  (except  that  the  benefit  plans  may  impose  a  limit  on  the  amount  that  may  be
reimbursed or paid), (B) any reimbursement must be made on or before the last day of the calendar year following the calendar
year in which the expense was incurred, and (C) the right to reimbursement or in-kind benefits is not subject to liquidation or
exchange for another benefit. Whenever payments under this Agreement are to be made in installments, each such installment
shall be deemed to be a separate payment for purposes of Section 409A.

(c)

If Employee is deemed on the date of “separation from service” (under Treas. Reg. Section 1.409A-1(h))
to  be  a  “specified  employee”  (under  Treas.  Reg.  Section  1.409A-1(i)),  then  with  regard  to  any  payment  or  benefit  that  is
considered  deferred  compensation  under  Section  409A  of  the  Code  payable  on  account  of  a  “separation  from  service”  that  is
required  to  be  delayed  under  Section  409A(a)(2)(B)  of  the  Code  (after  taking  into  account  any  applicable  exceptions  to  such
requirement), such payment or benefit shall be made or provided on the earlier of (i) the expiration of the six (6)-month period
measured from the date of Employee’s “separation from service,” or (ii) the date of Employee’s death (“Delay Period”). Upon
expiration of the Delay Period, all payments and benefits delayed under this Section 9(c) shall be paid or reimbursed to

-3-

Employee in a lump sum and any remaining payments and benefits due under this Agreement shall be paid or provided on the
payment dates specified. For purposes of any provision of this Agreement providing for the payment of any amounts or benefits
upon or following a termination of employment, references to Employee’s “termination of employment” (and corollary terms)
shall be construed to refer to Employee’s “separation from service” (under Treas. Reg. Section 1.409A-1(h)).

10.

Notices. Notices and all other communications contemplated by this Agreement shall be in writing and shall be
deemed to have been duly given upon actual confirmed receipt by mail, courier or email. In the case of Employee, mailed notices
shall be addressed to Employee at the home or personal email address that Employee most recently communicated to XOMA in
writing. In the case of XOMA, mailed notices shall be addressed to its corporate headquarters, and all notices shall be directed to
the attention of its Secretary.

11.

Successors.

(a)

XOMA’s  Successors.  Any  successor  to  XOMA  (direct  or  indirect,  by  purchase,  lease,  merger,
amalgamation,  consolidation,  liquidation  or  otherwise)  to  all  or  substantially  all  of  XOMA’s  business  or  assets  shall  assume
XOMA’s  obligations  under  this Agreement  and  agree  expressly  to  perform  XOMA’s  obligations  under  this Agreement  in  the
same manner and to the same extent as XOMA would be required to perform such obligations in the absence of a succession. For
all purposes under this Agreement, the term “XOMA” shall include any successor to XOMA’s business or assets which executes
and delivers the assumption agreement described in this Section 11(a) or which becomes bound by the terms of this Agreement
by operation of law.

(b)

Employee’s Successors. Without the written consent of XOMA, Employee shall not assign or transfer this
Agreement or any right or obligation under this Agreement to any other person or entity. However, except as otherwise set forth
herein, the terms of this Agreement and all rights of Employee shall inure to the benefit of, and be enforceable by, Employee’s
personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and legatees.

12.

Amendment  of  Agreement.  Changes  in  Employee’s  employment  terms,  other  than  those  changes  expressly
reserved to XOMA’s or the Board’s discretion in this Agreement, require a written modification approved by XOMA and signed
by Employee and a duly authorized officer of XOMA other than Employee.

13. Waiver.  Any  party’s  failure  to  enforce  any  provision  or  provisions  of  the  Agreement  will  not  in  any  way  be
construed as a waiver of any such provision or provisions, nor prevent any party from thereafter enforcing each and every other
provision of the Agreement. The rights granted to the Parties herein are cumulative and will not constitute a waiver of any party’s
right to assert all other legal remedies available to it under the circumstances.

14.

Severability. In the event any provision of this Agreement is determined to be invalid or unenforceable, in whole
or in part, this determination shall not affect any remaining part of such provision or any other provision of this Agreement and
the provision in question shall be

-4-

modified  so  as  to  be  rendered  enforceable  in  a  manner  consistent  with  the  intent  of  the  Parties  insofar  as  possible  under
applicable law.

15.

Governing  Law.  This Agreement  shall  be  construed  and  enforced  in  accordance  with  the  laws  of  the  State  of
California without regard to conflicts of law principles. Employee expressly consents to personal jurisdiction and venue in the
state and federal courts for Alameda County, California for any lawsuit filed there against Employee by XOMA arising from or
related to this Agreement.

16.

Fees and Costs. The Parties shall each bear their own costs, expert fees, attorneys’ fees and other fees incurred in

connection with this Agreement.

17.

Counterparts. This Agreement may be executed in counterparts which shall be deemed to be part of one original,

and facsimile and electronic signatures shall be equivalent to original signatures.

18.

Arbitration.  To ensure the timely and economical resolution of disputes that may arise between Employee and the
Company, both Employee and the Company mutually agree that pursuant to the Federal Arbitration Act, 9 U.S.C. §1-16, and to
the fullest extent permitted by applicable law, Employee will submit solely to final, binding and confidential arbitration any and
all disputes, claims, or causes of action arising from or relating to: the negotiation, execution, interpretation, performance, breach
or  enforcement  of  this  Agreement;  or  Employee’s  employment  with  the  Company  (including  but  not  limited  to  all  statutory
claims); or the termination of Employee’s employment with the Company (including but not limited to all statutory claims).  BY
AGREEING TO THIS ARBITRATION PROCEDURE, BOTH EMPLOYEE AND THE COMPANY WAIVE THE RIGHT TO
RESOLVE ANY  SUCH  DISPUTES  THROUGH A  TRIAL  BY  JURY  OR  JUDGE  OR  THROUGH AN ADMINISTRATIVE
PROCEEDING.    The Arbitrator  will  have  the  sole  and  exclusive  authority  to  determine  whether  a  dispute,  claim  or  cause  of
action  is  subject  to  arbitration  under  this  section  and  to  determine  any  procedural  questions  which  grow  out  of  such  disputes,
claims or causes of action and bear on their final disposition.  All claims, disputes, or causes of action under this section, whether
by  Employee  or  the  Company,  must  be  brought  solely  in  an  individual  capacity,  and  will  not  be  brought  as  a  plaintiff  (or
claimant) or class member in any purported class or representative proceeding, nor joined or consolidated with the claims of any
other person or entity.  The Arbitrator may not consolidate the claims of more than one person or entity, and may not preside over
any form of representative or class proceeding.  To the extent that the preceding sentences in this paragraph are found to violate
applicable law or are otherwise found unenforceable, any claim(s) alleged or brought on behalf of a class will proceed in a court
of  law  rather  than  by  arbitration.   Any  arbitration  proceeding  under  this Arbitration  section  will  be  presided  over  by  a  single
arbitrator and conducted by JAMS, Inc. (“JAMS”) in San Francisco, CA under the then applicable JAMS rules for the resolution
of  employment  disputes  (available  upon  request  and  also  currently  available  at    http://www.jamsadr.com/rules-employment-
arbitration/).  Employee and the Company both have the right to be represented by legal counsel at any arbitration proceeding, at
each  party’s  own  expense.    The Arbitrator  will:  (a)  have  the  authority  to  compel  adequate  discovery  for  the  resolution  of  the
dispute; (b) issue a written arbitration decision, to include the arbitrator’s essential findings and conclusions and a statement of
the award; and (c) be authorized to award any or all remedies that Employee or the Company would be entitled to seek in a court
of law.  The Company

-5-

will pay all JAMS arbitration fees in excess of the amount of court fees that would be required of Employee if the dispute were
decided in a court of law.  This section will not apply to any action or claim that cannot be subject to mandatory arbitration as a
matter of law, including, without limitation, claims brought pursuant to the California Private Attorneys General Act of 2004, as
amended,  the  California  Fair  Employment  and  Housing Act,  as  amended,  and  the  California  Labor  Code,  as  amended,  to  the
extent such claims are not permitted by applicable law to be submitted to mandatory arbitration and such applicable law is not
preempted  by  the  Federal Arbitration Act  or  otherwise  invalid  (collectively,  the  “Excluded  Claims”).    In  the  event  Employee
brings multiple claims, including one of the Excluded Claims listed above, the Excluded Claims may be filed with a court, while
any other claims will remain subject to mandatory arbitration.  Nothing in this section is intended to prevent either Employee or
the Company from obtaining injunctive relief in court to prevent irreparable harm pending the conclusion of any such arbitration.
Any  final  award  in  any  arbitration  proceeding  hereunder  may  be  entered  as  a  judgment  in  the  federal  and  state  courts  of  any
competent jurisdiction and enforced accordingly.

19.

Indemnification.    Employee  shall  execute  the  Company’s  standard  form  of  indemnification  agreement  provided

herewith.

20.

Complete  Agreement.  This  Agreement,  together  with  Employee’s  Confidentiality  Agreement  and  the  other
agreements referenced herein, forms the complete and exclusive embodiment of the entire agreement between the Parties with
regard  to  this  subject  matter,  and  supersedes  and  replaces  any  other  agreements  or  promises  made  to  Employee  by  anyone,
whether oral or written.

[signature page to follow]

-6-

COMPANY:

XOMA CORPORATION

EMPLOYEE:

By: /s/ W. Denman Van Ness
W. Denman Van Ness
Lead Independent Director

/s/ Owen Hughes
Owen Hughes

-7-

EXHIBIT A

EMPLOYEE CONFIDENTIAL INFORMATION AND
INVENTIONS ASSIGNMENT AGREEMENT

EXHIBIT B

FORM RELEASE OF CLAIMS AGREEMENT

This Release of Claims Agreement (“Release Agreement”) is entered into between XOMA Corporation (“XOMA”) and
Owen  Hughes  (“Employee”).  XOMA  and  Employee  (collectively,  the  “Parties”)  are  parties  to  an  Officer  Employment
Agreement (“Employment Agreement”) and agree as follows:

1.

Termination. Employee’s employment with XOMA terminated on _______, 20__.

2.

Release  of  Claims.  In  exchange  for  the  compensation,  benefits  and  other  consideration  to  be  provided  to
Employee under the Employment Agreement that Employee is not otherwise entitled to receive, Employee hereby generally and
completely releases XOMA and XOMA (US) LLC, and their past and present officers, agents, directors, employees, investors,
shareholders,  administrators,  partners,  attorneys,  agents,  insurers,  affiliates,  divisions,  subsidiaries,  parents,  predecessor  and
successor corporations, and assigns (collectively, the “Released Parties”), from, and agrees not to sue or otherwise institute any
legal  or  administrative  proceedings  concerning,  any  and  all  claims,  duties,  liabilities,  obligations  and  causes  of  action,  both
known and unknown, that arise out of or are in any way related to events, acts, conduct or omissions occurring prior to or on the
date Employee signs this Release Agreement (collectively, the “Released Claims”).

The Released Claims include but are not limited to:

(a)

all claims arising out of or in any way related to Employee’s employment with XOMA or the termination

of that employment;

(b)

all  claims  related  to  compensation  or  benefits  from  XOMA,  including  salary,  bonuses,  commissions,
vacation,  paid  time  off,  expense  reimbursements,  severance  pay,  fringe  benefits,  stock,  stock  options,  or  any  other  ownership,
equity or profits interests in XOMA (including but not limited to any right to purchase, or actual purchase, of shares of stock of
XOMA);

(c)

all claims for breach of contract, wrongful termination and breach of the implied covenant of good faith

and fair dealing;

(d)

all  tort  claims,  including  claims  for  fraud,  defamation,  emotional  distress  and  discharge  in  violation  of

public policy;

(e)

all  federal,  state  and  local  statutory  claims,  including  claims  for  discrimination,  harassment,  retaliation,
attorneys’  fees  or  other  claims  arising  under  the  Federal  Civil  Rights Act  of  1964,  the  federal  Civil  Rights Act  of  1991,  the
federal Age Discrimination in Employment Act of 1967 (the “ADEA”), the federal Americans with Disabilities Act of 1990, the
federal  Fair  Labor  Standards  Act,  the  federal  the  Employee  Retirement  Income  Security  Act  of  1974,  the  federal  Worker
Adjustment and Retraining Notification Act, the California Fair Employment and Housing Act and the California Labor Code,
and all amendments to and regulations issued under each such statute;

(f)

(g)

discrimination; and

all claims for violation of the federal or any state constitution;

all  claims  arising  out  of  any  other  laws  and  regulations  relating  to  employment  or  employment

(h)

all claims for attorneys’ fees and costs.

3.

Acknowledgment of Waiver of Claims under ADEA. Employee acknowledges that Employee is knowingly and
voluntarily  waiving  and  releasing  any  rights  Employee  may  have  under  the ADEA,  and  that  the  consideration  given  for  the
waiver and release in this Section 3 is in addition to anything of value to which Employee is already entitled. Employee further
acknowledges that Employee has been advised, as required by the ADEA, that: (a) Employee’s waiver and release do not apply
to any rights or claims that may arise after the date Employee signs this Release Agreement; (b) Employee should consult with an
attorney prior to signing this Release Agreement (although Employee may choose voluntarily not to do so); (c) Employee has
twenty-one  (21)  days  to  consider  this  Release Agreement  (although  Employee  may  choose  voluntarily  to  sign  it  earlier);  (d)
Employee has seven (7) days following the date Employee signs this Release Agreement to revoke the Release Agreement (by
providing written notice of Employee’s revocation to the Legal Department at XOMA); and (e) this Release Agreement will not
be effective until the date upon which the revocation period has expired, which will be the eighth (8th) day after the date that this
Release Agreement is signed by Employee provided that Employee does not revoke it (the “Effective Date”).

4.

Waiver  of  Unknown  Claims.  In  giving  the  releases  set  forth  in  this  Release Agreement,  which  include  claims
which may be unknown to Employee at present, Employee acknowledges that Employee has read and understands Section 1542
of the California Civil Code which reads as follows:

A  GENERAL  RELEASE  DOES  NOT  EXTEND  TO  CLAIMS  WHICH  THE  CREDITOR
OR RELEASING PARTY DOES NOT KNOW OR SUSPECT TO EXIST IN HIS OR HER
FAVOR AT THE TIME OF EXECUTING THE RELEASE, WHICH IF KNOWN BY HIM
OR  HER  WOULD  HAVE  MATERIALLY  AFFECTED  HIS  OR  HER  SETTLEMENT
WITH THE DEBTOR OR RELEASED PARTY.

Employee hereby expressly waives and relinquishes all rights and benefits under that section and any law or legal principle of
similar effect in any jurisdiction with respect to Employee’s release of claims herein, including but not limited to the release of
unknown and unsuspected claims.

5.

Excluded  Claims.  Notwithstanding  the  foregoing,  the  following  are  not  included  in  the  Released  Claims  (the
“Excluded Claims”): (a) any rights or claims for indemnification Employee may have pursuant to any written indemnification
agreement with XOMA to which Employee is a party or under applicable law; (b) any rights which cannot be waived as a matter
of law; (c) any rights Employee has to file or pursue a claim for workers’ compensation or unemployment insurance; and (d) any
claims for breach of the Employment Agreement or this Release Agreement. In addition, nothing in this Release Agreement
prevents Employee from filing, cooperating with or participating in any proceedings before the Equal Employment

Opportunity Commission, the Department of Labor, the California Department of Fair Employment and Housing or any
analogous  federal  or  state  government  agency,  except  that  Employee  acknowledges  and  agrees  that  Employee  hereby
waives  Employee’s  right  to  any  monetary  benefits  in  connection  with  any  such  claim,  charge  or  proceeding.  Employee
represents and warrants that, other than the Excluded Claims, Employee is not aware of any claims Employee has or might have
against any of the Released Parties that are not included in the Released Claims.

6.

Representations.  Employee  represents  that  Employee  has  been  paid  all  compensation  owed  and  for  all  time
worked; Employee has received all the leave and leave benefits and protections for which Employee is eligible pursuant to the
federal Family and Medical Leave Act, the California Family Rights Act, any applicable law or XOMA policy; and Employee
has not suffered any on the job injury for which Employee has not already filed a workers’ compensation claim.

7.

Nondisparagement.  Employee  agrees  not  to  disparage  XOMA,  and  XOMA’s  officers,  directors,  employees,
shareholder, members and agents, in any manner likely to be harmful to them or their business, business reputation or personal
reputation. Similarly, Employee understands that XOMA agrees to direct its directors and officers not to disparage Employee in
any manner likely to be harmful to Employee’s business reputation or personal reputation. Nothing in this provision, however,
shall prevent either Employee or XOMA from responding accurately and fully to any request for information if required by legal
process  or  in  connection  with  a  government  investigation.  In  addition,  nothing  in  this  provision  or  this  Release Agreement  is
intended  to  prohibit  or  restrain  Employee  in  any  manner  from  making  disclosures  that  are  protected  under  the  whistleblower
provisions of federal law or regulation or under other applicable law or regulation.

8.

No  Voluntary  Adverse  Action.  Employee  agrees  that  Employee  will  not  voluntarily  provide  assistance,
information or advice, directly or indirectly (including through agents or attorneys), to any person or entity in connection with
any  proposed  or  pending  litigation,  arbitration,  administrative  claim,  cause  of  action,  or  other  formal  proceeding  of  any  kind
brought against XOMA, its parent or subsidiary entities, affiliates, officers, directors, employees or agents, nor shall Employee
induce or encourage any person or entity to bring any such claims; provided, however, that Employee must respond accurately
and truthfully to any question, inquiry or request for information when required by legal process (e.g., a valid subpoena or other
similar compulsion of law) or as part of a government investigation.

9.

Return  of  XOMA  Property;  Compliance  with  Proprietary  Information  Agreement.  Employee  represents  that
Employee  has  complied  fully  with  Section  7(g)  of  the  Employment Agreement  and  the  provisions  of  Employee’s  Employee
Confidential  Information  and  Invention  Assignment  Agreement  with  XOMA  (the  “Confidentiality  Agreement”),  and  further
agrees to continue to abide by Employee’s continuing obligations under the Confidentiality Agreement.

10.

Fees and Costs. The Parties shall each bear their own costs, expert fees, attorneys’ fees and other fees incurred in

connection with this Release Agreement.

11.

No Representations. Employee represents that Employee has had the opportunity to consult with an attorney, and

has carefully read and understands the scope and effect of the

provisions of this Release Agreement. Neither Party has relied upon any representations or statements made by the other Party
which are not specifically set forth in this Release Agreement.

12.

Severability. In the event any provision of this Release Agreement is determined to be invalid or unenforceable, in
whole or in part, this determination shall not affect any remaining part of such provision or any other provision of this Release
Agreement and the provision in question shall be modified so as to be rendered enforceable in a manner consistent with the intent
of the Parties insofar as possible under applicable law.

13.

Entire Agreement. This  Release Agreement,  together  with  the  Employment Agreement,  forms  the  complete  and
exclusive  embodiment  of  the  entire  agreement  between  the  Parties  with  regard  to  this  subject  matter. This  Release Agreement
may  only  be  modified  or  amended  in  a  writing  signed  by  Employee  and  a  duly  authorized  officer  of  XOMA  other  than
Employee.

14.

Governing Law. This Release Agreement shall be construed and enforced in accordance with the laws of the State
of California without regard to conflicts of law principles. Employee expressly consents to personal jurisdiction and venue in the
state and federal courts for Alameda County, California for any lawsuit filed there against Employee by XOMA arising from or
related to this Release Agreement.

15.

Counterparts. This Release Agreement may be executed in counterparts which shall be deemed to be part of one

original, and facsimile and electronic signatures shall be equivalent to original signatures.

COMPANY:

XOMA CORPORATION

EMPLOYEE:

By:

/s/ W. Denman Van Ness
W. Denman Van Ness
Lead Independent Director

/s/ Owen Hughes
Owen Hughes

OFFICER EMPLOYMENT AGREEMENT

Exhibit 10.16

This Officer Employment Agreement (“Agreement”) between Bradley Sitko (“Employee”) and XOMA Corporation (“XOMA”
or “the Company”) (collectively, the “Parties”) is effective as of January 3, 2023 (the “Agreement Effective Date”).

1.

Employment. Employee’s employment with XOMA in the position of Chief Investment Officer shall commence
on  the  Agreement  Effective  Date.  Employee’s  employment  with  XOMA  will  be  governed  by  the  terms  set  forth  in  this
Agreement.

2.

Position and Responsibilities. Employee shall devote reasonable best efforts and substantially all of Employee’s
working  time  and  attention  to  employment  with  XOMA.  Employee  shall  perform  those  duties  and  responsibilities  associated
with  Chief  Investment  Officer  and  as  may  be  directed  by  the  Executive  Chairman  (the  “Chairman”),  to  whom  Employee  will
report. While employed by XOMA, Employee may not accept consulting or other business or non-profit opportunities without
first  obtaining  written  approval  from  the  Chairman.  In  addition,  while  employed  by  XOMA,  except  on  behalf  of  XOMA,
Employee  will  not  directly  or  indirectly  serve  as  an  officer,  director,  stockholder,  employee,  partner,  proprietor,  investor,  joint
venturer,  associate,  representative  or  consultant  of  any  other  person,  corporation,  firm,  partnership  or  other  entity  whatsoever
known by Employee to compete with XOMA (or that is planning or preparing to compete with XOMA), anywhere in the world,
in any line of business engaged in (or planned to be engaged in) by XOMA; provided, however, that Employee may purchase or
otherwise  acquire  up  to  (but  not  more  than)  five  percent  (5%)  of  any  class  of  securities  of  any  enterprise  (but  without
participating  in  the  activities  of  such  enterprise)  if  such  securities  are  listed  on  any  national  or  regional  securities  exchange.
Notwithstanding  the  foregoing,  Employee  is  permitted  to  provide  consulting  services  to  his  former  employer  during  the  first
thirty (30) days of Employee’s employment with the Company provided such consulting services are limited to ten (10) hours per
week and do not otherwise interfere with Employee’s legal and contractual obligations to the Company in any material respect.  

3.

Term of Employment. The term of Employee’s employment with XOMA shall be the period from the Agreement
Effective  Date  until  Employee’s  employment  is  terminated  pursuant  to  Section  7.  Consistent  with  XOMA  policy,  Employee’s
employment relationship with XOMA is at-will. Accordingly, Employee may resign Employee’s employment with XOMA at any
time  and  for  any  reason  whatsoever  simply  by  notifying  XOMA;  and  XOMA  may  terminate  Employee’s  employment  at  any
time, with or without Cause (as defined in Section 7(d)) or advance notice, subject to the provisions of Sections 7, 8 and 9.

4.

Compensation and Reimbursement of Expenses.

(a)

Compensation. Employee will receive for services to be rendered hereunder a base salary paid at the rate
of $500,000 per year, less applicable payroll deductions and withholdings (the “Base Salary”), paid on XOMA’s ordinary payroll
cycle. In addition, Employee shall be eligible to participate in XOMA’s Corporate Achievement Goals plan (“CAGs”), as it may
be  amended  from  time  to  time  in  accordance  with  its  terms,  with  an  initial  target  rate  of  50%  of  Base  Salary  (the  “Target
Bonus”), which can be adjusted from time to time by the Board of Directors (the “Board”).  

-1-

(b)

Equity  Awards.    On  the  Agreement  Effective  Date,  the  Company  will  grant  Employee  a  non-qualified
option to purchase 300,000 shares of the Company’s common stock with an exercise price equal to the fair market value of the
common stock (the “FMV Option”).  The FMV Option shall vest over a four-year period, with one-quarter of the shares vesting
on  the  one-year  anniversary  of  the  Agreement  Effective  Date,  and  then  equal  monthly  installments  thereafter  (subject  to
Employee’s  continuous  service).    On  the  Agreement  Effective  Date,  the  Company  will  also  grant  Employee  a  non-qualified
option  to  purchase  250,000  shares  of  the  Company’s  common  stock  with  an  exercise  price  of  $30  per  share  (the  “Additional
Option”).    The  Additional  Option  shall  vest  over  a  four-year  period,  with  one-quarter  of  the  shares  vesting  on  the  one-year
anniversary of the Agreement Effective Date, and then equal monthly installments thereafter (subject to Employee’s continuous
service).    The  FMV  Option  and  the Additional  Option  shall  be  issued  outside  of,  but  subject  in  all  respects  to  the  terms  and
conditions of the Company’s Equity Incentive Plan (the “Plan”), and shall be governed in all respects by the terms of the Plan as
if granted thereunder, the grant notice and the option agreement. The Company intends for the FMV Option and the Additional
Option  each  to  be  a  material  inducement  to  Employee  entering  into  employment  with  the  Company  within  the  meaning  of
Listing Rule 5635(c)(4) of The Nasdaq Stock Market LLC.  Employee may be eligible for additional annual equity grants at the
discretion of the Board.  

(c)

Signing Bonus.  The Company will pay Employee a signing bonus equal to $110,000.  This amount will be
paid within thirty (30) days after the Agreement Effective Date and will be subject to standard deductions and withholdings.  If
Employee resigns without Good Reason (as defined herein) or if Employee is terminated for Cause (as defined herein), in either
case, within one (1) year after the Agreement Effective Date, then Employee will be required to repay the signing bonus to the
Company, based on the gross amount, but prorated on a daily basis for the time employed, to be paid to the Company within
sixty (60) days after Employee’s termination date.

(d)

Reimbursement  of  Expenses.  XOMA  shall  reimburse  Employee  for  all  reasonable  travel  and  other

expenses incurred in performing Employee’s obligations under this Agreement in a manner consistent with XOMA policies.

5.

Participation in Benefit Plans. The payments provided in Section 4 are in addition to benefits Employee is entitled
to  under  any  employee  benefit  plan  of  XOMA  for  which  Employee  is  or  becomes  eligible. The  Employee  shall  be  entitled  to
participate in any benefit plan for which key executives of the Company are eligible.  

6.

Compliance  with  Proprietary  Information Agreement  and  XOMA  Policies. As  a  condition  of  employment  with
XOMA, Employee must sign and comply with the Employee Confidential Information and Inventions Assignment Agreement
attached  hereto  as  Exhibit  A  (the  “Confidentiality  Agreement”),  which  prohibits  unauthorized  use  or  disclosure  of  XOMA
proprietary information, among other obligations. In addition, Employee is required to abide by XOMA’s policies and procedures
(including  but  not  limited  to  XOMA’s  Employee  Handbook),  as  adopted  or  modified  from  time  to  time  within  XOMA’s
discretion; provided, however, that in the event the terms of this Agreement differ from or are in conflict with XOMA’s general
employment policies or practices, this Agreement shall control.

-2-

7.

Termination of Employment.

(a)

Termination by Employee. As provided in Section 3, Employee may resign Employee’s employment with
XOMA at any time and for any reason. Employee will not be entitled to any of the severance benefits set forth in Section 8 or 9 if
Employee  resigns,  unless  such  resignation  is  for  Good  Reason.  For  purposes  of  this Agreement,  Employee  shall  have  “Good
Reason” for resignation from employment with XOMA if any of the following actions are taken by XOMA without Employee’s
prior express written consent: (i) a reduction in Employee’s Target Bonus unless consistent to target bonus reductions for all other
member of XOMA’s senior management team, (ii) a reduction in Employee’s Base Salary or Target Bonus, in each case, by more
than  10%;  (iii)  a  material  reduction  in  Employee’s  title  or  duties  (including  responsibilities  and/or  authorities);  (iv)  a  required
relocation of Executive’s principal place of employment to a location outside of the New York City metropolitan area; or (v) any
other material breach of this Agreement.  In order for Employee to resign for Good Reason, each of the following requirements
must be met: (A) Employee must provide written notice to the Board within ninety (90) days after the occurrence of the event
giving rise to Good Reason setting forth the basis for Employee’s resignation, (B) Employee must allow XOMA at least thirty
(30) days from receipt of such written notice to cure such event, (C) such event is not reasonably cured by XOMA within such
thirty (30) day period (the “Cure Period”), and (D) Employee must resign from all positions Employee then holds with XOMA
not later than thirty (30) days after the expiration of the Cure Period. If Employee resigns for Good Reason, Employee shall be
entitled to the severance benefits set forth in Section 8 or 9, as applicable.

(b)

Termination  by  XOMA  Without  Cause.  Employee  may  be  terminated  by  XOMA  without  Cause,  but  in

such case, Employee shall be entitled to the severance benefits set forth in Section 8 or 9, as applicable.

(c)

Termination Upon Death or Permanent Disability. Except as required by law and as provided in Section 8,
all benefits and other rights of Employee under this Agreement shall be terminated by Employee’s death or Permanent Disability.
For purposes of this Agreement, “Permanent Disability” is defined as Employee being incapable of performing duties to XOMA
by reason of any medically determined physical or mental impairment that can be expected to last for a period of more than six
(6) consecutive months from the first date of Employee’s absence due to the disability. XOMA will give Employee at least four
(4) weeks written notice of termination due to such disability.

(d)

Termination  by  XOMA  for  Cause.  XOMA  may  terminate  Employee’s  employment  for  Cause,  in  which
case, Employee will not be entitled to any severance benefits under Section 8 or 9.  For purposes of this Agreement, XOMA will
have Cause to terminate Employee’s employment as the result of:

Agreement;

(i)

willful material fraud or material dishonesty in connection with Employee’s performance under this

(ii)

material breach of this Agreement or of XOMA’s Code of Ethics;

(iii) misappropriation of a material business opportunity of XOMA ;

-3-

(iv)

misappropriation of any XOMA funds or property ; or

(v)

conviction of, or the entering of a plea of guilty or no contest with respect to, a felony.

(e)

Notice  and  Opportunity  to  Cure.  It  shall  be  a  condition  precedent  to  XOMA’s  right  to  terminate
Employee’s  employment  for  the  reasons  set  forth  in  Section  7(d)(ii)  of  this Agreement  that  (i)  XOMA  shall  first  have  given
Employee written notice stating with specificity the reason for the termination (“Breach”) and (ii) if such Breach is capable of
cure or remedy, Employee will have a period of thirty (30 days after the notice is given to remedy the Breach.

(f)

Resignation  from  any  XOMA  Boards.  Upon  termination  of  employment  for  any  reason,  and  as  a
precondition to Employee’s receipt of the severance benefits set forth in Section 8 or 9, Employee shall resign from any and all
positions Employee holds with any board of any XOMA entity, including any XOMA subsidiaries, to be effective no later than
the date of Employee’s employment termination (or such other date requested or permitted by the Chairman).

(g)

Return  of  XOMA  Property.  Upon  termination  of  employment  for  any  reason,  and  as  a  precondition  to
Employee’s  receipt  of  the  severance  benefits  set  forth  in  Section  8  or  9,  Employee  shall  immediately  return  to  XOMA  all
documents,  telephones,  computers,  keys,  credit  cards,  other  property  and  records  of  XOMA,  and  shall  return  or  destroy  all
copies, within Employee’s possession, custody or control.

(h)

Release of Claims. As a condition of entering into this Agreement and receiving the severance benefits set
forth in Section 8 or 9, Employee shall execute and deliver to XOMA a release of claims in favor of XOMA substantially in the
form attached hereto as Exhibit B (the “Release Agreement”) within the timeframe set forth in the Release Agreement, but not
later than forty-five (45) days following Employee’s employment termination date, and allow the Release Agreement to become
effective according to its terms (by not invoking any legal right to revoke it) within any applicable time period set forth in the
Release Agreement.

8.

Severance Benefits Outside of Change of Control Protection Period. Subject to Sections 7(f), 7(g) and 7(h) and
Employee’s continued compliance with the terms of this Agreement, the following provisions of this Section 8 shall apply upon
the occurrence of an event of termination of Employee’s employment with XOMA as provided in Section 7(a) for Good Reason
outside  of  a  Change  of  Control  Protection  Period,  Section  7(b)  for  termination  without  Cause  outside  of  a  Change  of  Control
Protection Period, or Section 7(c) due to death or Permanent Disability at any time (whether inside or outside of a Change of
Control  Protection  Period),  in  each  case,  provided  that  the  termination  of  Employee’s  employment  with  XOMA  constitutes  a
“separation from service” as provided in Treas. Reg. Section 1.409A-1(h).

(a)

Cash Severance. XOMA shall pay Employee, or in the event of Employee’s death or Permanent Disability,
Employee’s beneficiaries, as severance pay: (i) one (1x) times Employee’s Base Salary in effect as of Employee’s employment
termination date (disregarding any reduction in the Employee’s Base Salary that would give rise to Employee’s

-4-

right  to  resign  with  Good  Reason);  and  (ii)  a  prorated  portion  of  Employee’s  Target  Bonus  for  the  fiscal  year  in  which  the
termination occurs, calculated by multiplying the annual Target Bonus by a fraction, the numerator of which shall be the number
of months (including a portion of a month) of the fiscal year during which Employee was employed prior to the occurrence of the
termination, and the denominator of which shall be twelve (12). In addition, if Employee is terminated without Cause after the
completion of any fiscal year for which Employee was eligible to receive a bonus payment under CAGs, but before such CAGs
payment is made, Employee shall be entitled to receive a bonus payment for such year consistent with Employee’s performance
against  CAGs  objectives  and  the  good  faith  determination  by  the  Board  that  CAGs  bonuses  are  payable  for  such  year.  The
severance payment described in Section 8(a)(i) shall be paid in monthly installments over twelve (12) months, with the first two
(2) of such monthly installments being paid in a lump sum sixty (60) days after Employee’s employment termination date, and
the remaining installments being paid monthly thereafter until fully paid. The severance payments described in Section 8(a)(ii)
shall be paid in a lump sum sixty (60) days after Employee’s employment termination date.

(b)

Group Health Coverage and Certain Other Benefits. For a period of twelve (12) months following an event
of  termination  under  Section  7(a)  for  Good  Reason  or  under  Section  7(b)  without  Cause  (the  “COBRA  Premium  Period”),
XOMA shall pay the full cost of COBRA continuation coverage (the “COBRA Premiums”) of Employee and Employee’s spouse
and  eligible  dependents  (collectively  “Covered  Persons”),  provided,  however,  that  (A)  each  Covered  Person  constitutes  a
qualified  beneficiary,  as  defined  in  Section  4980B(g)(1)  of  the  Internal  Revenue  Code  of  1986,  as  amended  (“Code”);  and
(B)  Employee  elects  continuation  coverage  within  the  prescribed  time  period  under  the  Consolidated  Omnibus  Budget
Reconciliation Act of 1985, as amended (“COBRA”). The payments by XOMA for such group health coverage shall cease prior
to the expiration of the twelve (12) month period in this Section 8(b), upon commencement of substantially similar coverage for
all Covered Persons as a result of the employment of Employee by another employer, or when Employee ceases to be eligible for
COBRA continuation coverage for any reason, including plan termination. Notwithstanding the foregoing, if XOMA determines,
in  its  sole  discretion,  that  it  cannot  pay  the  COBRA  Premiums  without  potentially  incurring  financial  costs  or  penalties  under
applicable  law  (including,  without  limitation,  Section  2716  of  the  Public  Health  Service Act),  regardless  of  whether  Covered
Persons elect or are eligible for COBRA coverage, XOMA instead shall pay to Employee, on the first day of each calendar month
following Employee’s employment termination date, a fully taxable cash payment equal to the applicable COBRA premiums for
that month (including the amount of COBRA premiums for all Covered Persons and an additional amount to pay for the taxes on
all  such  amounts),  less  required  payroll  deductions  and  withholdings  (such  amount,  the  “Special  Cash  Payment”),  for  the
remainder of the COBRA Premium Period. Employee may, but is not obligated to, use such Special Cash Payments toward the
cost of COBRA premiums.

(c)

Outplacement  Program.  Upon  the  occurrence  of  an  event  of  termination  under  Section  7(a)  for  Good
Reason  only  or  under  Section  7(b)  without  Cause,  Employee  will  be  entitled  to  participate  in  a  twelve  (12)-month  executive
outplacement program provided by an executive coaching or outplacement service, at XOMA’s expense not to exceed $15,000
and  paid  directly  to  the  coach  or  outplacement  service  (the  “Outplacement  Services”).  The  Outplacement  Services  will
commence after the Effective Date of the Release Agreement (as defined therein).

-5-

9.

Severance  Benefits  During  a  Change  of  Control  Protection  Period.  Subject  to  Sections  7(f),  7(g)  and  7(h)  and
Employee’s continued compliance with the terms of this Agreement, the following provisions of this Section 9 shall apply upon
the occurrence of an event of termination of Employee’s employment with XOMA as provided in Section 7(a) for Good Reason
during  a  Change  of  Control  Protection  Period  or  Section  7(b)  for  termination  without  Cause  during  a  Change  of  Control
Protection Period, in each case, provided that the termination of Employee’s employment with XOMA constitutes a “separation
from service” as provided in Treas. Reg. Section 1.409A-1(h).

(a)

Cash  Severance.    Employee  shall  be  entitled  to  receive  a  severance  payment  of  (i)  one  and  a  half  (1.5)
times  Employee’s  Base  Salary  in  effect  immediately  prior  to  termination  of  employment  (disregarding  any  reduction  in  the
Employee’s Base Salary that would give rise to Employee’s right to resign with Good Reason), (ii) one and a half (1.5) times
Employee’s Target Bonus in effect for the fiscal year in which the termination occurs; and (iii) any earned but unpaid bonus for
any prior performance period.  The severance payment shall be paid in a lump sum sixty (60) days after Employee’s employment
termination date.

(b)

Group Health Coverage and Certain Other Benefits. For a period of eighteen (18) months, XOMA shall
pay the full cost of the COBRA Premiums of the Covered Persons, subject to the same terms and conditions set forth in Section
8(b).

(c)

Outplacement Program. Employee will be entitled to the Outplacement Services for twelve (12) months,

subject to the same terms and conditions set forth in Section 8(c).

(d)

Equity Acceleration and Extended Option Exercise Period.  The vesting of all time-based equity awards
granted  to  Employee  by  XOMA  (including  any  such  options  granted  or  assumed  by  the  surviving  or  continuing  entity  of  the
Change of Control) and still outstanding (“Time-Based Awards”) shall automatically be accelerated so that all the Time-Based
Awards may be exercised (if applicable) immediately upon Employee’s termination date for any or all of the subject shares, and
the  post-termination  exercise  period  of  each  Time-Based  Award  (if  applicable)  shall  be  extended  to  the  earlier  of  sixty  (60)
months  after  the  date  of  such  termination  and  the  remainder  of  the  maximum  term  of  such Time-Based Award);  and  (B)  with
respect  to  any  performance-based  stock  awards  (“Performance  Awards”)  at  the  time  of  such  termination,  the  Board  (or  its
Compensation  Committee)  will  assess  in  good  faith  the  level  of  achievement  of  any  performance  goals  for  such  Performance
Awards  and  will  determine  in  its  sole  discretion  the  degree  of  achievement  of  the  performance  goal(s)  underlying  such
Performance Awards and accelerate a pro rata portion of such Performance Awards based on (x) the number of days that have
elapsed  during  the  applicable  performance  period  divided  by  the  total  number  of  days  in  the  performance  period  and  (y)  the
deemed level of achievement of such performance goal(s). The Time-Based Awards and Performance Awards shall continue to be
subject  to  all  other  terms  and  conditions  of  the  applicable  equity  incentive  or  share  option  plans  and  the  applicable  award
agreements between the Parties.

(e)

For  purposes  of  this  Agreement,  “Change  of  Control”  means  the  occurrence  of  any  of  the  following

events:

-6-

except for a transaction the principal purpose of which is to change the jurisdiction of XOMA’s organization;

(i) 

a merger, amalgamation or acquisition in which XOMA is not the surviving or continuing entity,

(ii) 

the sale, transfer or other disposition of all or substantially all of the assets of XOMA;

outstanding voting securities are transferred to different holders in a single or series of related transactions;

(iii) 

any other reorganization or business combination in which fifty percent (50%) or more of XOMA’s

(iv) 

approval by the shareholders of XOMA of a plan of complete liquidation of XOMA;

(v) 

any “person” (as such term is used in Sections 13(d) and 14(d) of the Securities Exchange Act of
1934, as amended) becoming the “beneficial owner” (as defined in Rule 13d-3 under said Act), directly or indirectly, of securities
of XOMA representing more than fifty percent (50%) of the total voting power represented by XOMA’s then outstanding voting
securities; or

(vi) 

a change in the composition of the Board, as a result of which fewer than a majority of directors are
Incumbent Directors. “Incumbent Directors” shall mean directors who (A) are directors of XOMA as of the date hereof, (B) are
elected, or nominated for election, to the Board with the affirmative votes of the directors of XOMA as of the date hereof, or (C)
are  elected,  or  nominated  for  election,  to  the  Board  with  the  affirmative  votes  of  at  least  a  majority  of  those  directors  whose
election or nomination was not in connection with any transaction described in subsections (i) through (v) or in connection with
an actual or threatened proxy contest relating to the election of directors of XOMA.

(f)

For purposes of this Agreement, the “Change of Control Protection Period” means the period commencing
two (2) months prior to the execution of the definitive agreement for a Change of Control and terminating twelve (12) months
following the closing of a Change of Control.

(g)

Excise Tax.

(i)

In the event that the benefits provided for in this Section 9 would constitute a “parachute payment”
within the meaning of Section 280G of the Code, and but for this sentence, be subject to the excise tax imposed by Section 4999
of the Code (“Excise Tax”)(a “280G Payment”), then any such 280G Payment (the “Payment”) shall be equal to the Reduced
Amount. The  “Reduced Amount”  shall  be  either  (x)  the  largest  portion  of  the  Payment  that  would  result  in  no  portion  of  the
Payment (after reduction) being subject to the Excise Tax or (y) the largest portion, up to and including the total, of the Payment,
whichever amount (i.e., the amount determined by clause (x) or by clause (y)), after taking into account all applicable federal,
state and local employment taxes, income taxes, and the Excise Tax (all computed at the highest applicable marginal rate), results
in  Employee’s  receipt,  on  an  after-tax  basis,  of  the  greater  economic  benefit  notwithstanding  that  all  or  some  portion  of  the
Payment may be subject to the Excise Tax. If a reduction in a Payment is required pursuant to the preceding sentence and

-7-

the Reduced Amount is determined pursuant to clause (x) of the preceding sentence, the reduction shall occur in the manner (the
“Reduction Method”) that results in the greatest economic benefit for Employee. If more than one method of reduction will result
in the same economic benefit, the items so reduced will be reduced pro rata (the “Pro Rata Reduction Method”).

(ii)

Notwithstanding any provision to the contrary, if the Reduction Method or the Pro Rata Reduction
Method would result in any portion of the Payment being subject to taxes pursuant to Section 409A that would not otherwise be
subject to taxes pursuant to Section 409A, then the Reduction Method and/or the Pro Rata Reduction Method, as the case may
be,  shall  be  modified  so  as  to  avoid  the  imposition  of  taxes  pursuant  to  Section  409A  as  follows:  (A)  as  a  first  priority,  the
modification shall preserve to the greatest extent possible, the greatest economic benefit for Employee as determined on an after-
tax basis; (B) as a second priority, Payments that are contingent on future events (e.g., being terminated without Cause), shall be
reduced (or eliminated) before Payments that are not contingent on future events; and (C) as a third priority, Payments that are
“deferred  compensation”  within  the  meaning  of  Section  409A  shall  be  reduced  (or  eliminated)  before  Payments  that  are  not
deferred compensation within the meaning of Section 409A.

(iii)

Unless  Employee  and  XOMA  agree  on  an  alternative  accounting  firm,  the  accountants  shall
perform  the  foregoing  calculations.    If  the  accountants  are  serving  as  accountant  or  auditor  for  the  individual,  entity  or  group
effecting  the  Change  of  Control  transaction,  XOMA  shall  appoint  a  nationally  recognized  accounting  firm  to  make  the
determinations required by this Section.  For purposes of making the calculations required by this Section, the accountants may
make  reasonable  assumptions  and  approximations  and  may  rely  on  interpretations  concerning  the  application  of  the  Code  for
which there is a “substantial authority” tax reporting position. The Parties shall furnish such information and documents as the
accountants may reasonably request in order to make a determination under this Section.  XOMA shall bear all reasonable costs
the accountants incur in connection with calculations contemplated by this Section.  XOMA shall use commercially reasonable
efforts  to  cause  the  accountants  to  make  the  determinations  hereunder  to  provide  its  calculations,  together  with  detailed
supporting documentation, to Employee and XOMA within fifteen (15) calendar days after the date on which Employee’s right to
a 280G Payment becomes reasonably likely to occur (if requested at that time by Employee or XOMA) or such other time as
requested by Employee or XOMA.

(iv)

If Employee receives a Payment for which the Reduced Amount was determined pursuant to clause
(x) of Section 9(g)(i) and the Internal Revenue Service determines thereafter that some portion of the Payment is subject to the
Excise Tax, Employee agrees to promptly return to XOMA a sufficient amount of the Payment (after reduction pursuant to clause
(x) of Section 9(g)(i)) so that no portion of the remaining Payment is subject to the Excise Tax. For the avoidance of doubt, if the
Reduced Amount was determined pursuant to clause (y), Employee shall have no obligation to return any portion of the Payment
pursuant to the preceding sentence.

10.

Binding  Agreement.  This  Agreement  shall  be  binding  upon,  and  inure  to  the  benefit  of,  the  Parties  and  their

respective permitted successors and assigns.

-8-

11.

Compliance with Section 409A of the Code.

(a)

It  is  intended  that  this  Agreement  will  comply  with  Section  409A  of  the  Code  and  its  regulations  and
guidelines (collectively, “Section 409A”), to the extent the Agreement is subject to Section 409A, and the Agreement shall be
interpreted on a basis consistent with such intent. If an amendment of the Agreement is necessary in order for it to comply with
Section 409A, the Parties will negotiate in good faith to amend the Agreement in a manner that preserves the original intent of
the Parties to the extent reasonably possible. No action or failure to act under this Section 11 shall subject XOMA to any claim,
liability, or expense, and XOMA shall not have any obligation to indemnify or otherwise protect Employee from the obligation to
pay any taxes, interest or penalties under Section 409A.

(b) With  respect  to  any  reimbursement  or  in-kind  benefit  arrangements  of  XOMA  and  its  subsidiaries  that
constitute deferred compensation for purposes of Section 409A, except as otherwise permitted by Section 409A, the following
conditions  shall  be  applicable:  (A)  the  amount  eligible  for  reimbursement,  or  in-kind  benefits  provided,  under  any  such
arrangement in one calendar year may not affect the amount eligible for reimbursement, or in-kind benefits to be provided, under
such  arrangement  in  any  other  calendar  year  (except  that  the  benefit  plans  may  impose  a  limit  on  the  amount  that  may  be
reimbursed or paid), (B) any reimbursement must be made on or before the last day of the calendar year following the calendar
year in which the expense was incurred, and (C) the right to reimbursement or in-kind benefits is not subject to liquidation or
exchange for another benefit. Whenever payments under this Agreement are to be made in installments, each such installment
shall be deemed to be a separate payment for purposes of Section 409A.

(c)

If Employee is deemed on the date of “separation from service” (under Treas. Reg. Section 1.409A-1(h))
to  be  a  “specified  employee”  (under  Treas.  Reg.  Section  1.409A-1(i)),  then  with  regard  to  any  payment  or  benefit  that  is
considered  deferred  compensation  under  Section  409A  of  the  Code  payable  on  account  of  a  “separation  from  service”  that  is
required  to  be  delayed  under  Section  409A(a)(2)(B)  of  the  Code  (after  taking  into  account  any  applicable  exceptions  to  such
requirement), such payment or benefit shall be made or provided on the earlier of (i) the expiration of the six (6)-month period
measured from the date of Employee’s “separation from service,” or (ii) the date of Employee’s death (“Delay Period”). Upon
expiration  of  the  Delay  Period,  all  payments  and  benefits  delayed  under  this  Section  11(c)  shall  be  paid  or  reimbursed  to
Employee in a lump sum and any remaining payments and benefits due under this Agreement shall be paid or provided on the
payment dates specified. For purposes of any provision of this Agreement providing for the payment of any amounts or benefits
upon or following a termination of employment, references to Employee’s “termination of employment” (and corollary terms)
shall be construed to refer to Employee’s “separation from service” (under Treas. Reg. Section 1.409A-1(h)).

12.

Notices. Notices and all other communications contemplated by this Agreement shall be in writing and shall be
deemed to have been duly given upon actual confirmed receipt by mail, courier or email. In the case of Employee, mailed notices
shall be addressed to Employee at the home or personal email address that Employee most recently communicated to XOMA in
writing. In the case of XOMA, mailed notices shall be addressed to its corporate headquarters, and all notices shall be directed to
the attention of its Secretary.

-9-

13.

Successors.

(a)

XOMA’s  Successors.  Any  successor  to  XOMA  (direct  or  indirect,  by  purchase,  lease,  merger,
amalgamation,  consolidation,  liquidation  or  otherwise)  to  all  or  substantially  all  of  XOMA’s  business  or  assets  shall  assume
XOMA’s  obligations  under  this Agreement  and  agree  expressly  to  perform  XOMA’s  obligations  under  this Agreement  in  the
same manner and to the same extent as XOMA would be required to perform such obligations in the absence of a succession. For
all purposes under this Agreement, the term “XOMA” shall include any successor to XOMA’s business or assets which executes
and delivers the assumption agreement described in this Section 13(a) or which becomes bound by the terms of this Agreement
by operation of law.

(b)

Employee’s Successors. Without the written consent of XOMA, Employee shall not assign or transfer this
Agreement or any right or obligation under this Agreement to any other person or entity. However, except as otherwise set forth
herein, the terms of this Agreement and all rights of Employee shall inure to the benefit of, and be enforceable by, Employee’s
personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and legatees.

14.

Amendment  of  Agreement.  Changes  in  Employee’s  employment  terms,  other  than  those  changes  expressly
reserved to XOMA’s or the Board’s discretion in this Agreement, require a written modification approved by XOMA and signed
by Employee and a duly authorized officer of XOMA other than Employee.

15. Waiver.  Any  party’s  failure  to  enforce  any  provision  or  provisions  of  the  Agreement  will  not  in  any  way  be
construed as a waiver of any such provision or provisions, nor prevent any party from thereafter enforcing each and every other
provision of the Agreement. The rights granted to the Parties herein are cumulative and will not constitute a waiver of any party’s
right to assert all other legal remedies available to it under the circumstances.

16.

Severability. In the event any provision of this Agreement is determined to be invalid or unenforceable, in whole
or in part, this determination shall not affect any remaining part of such provision or any other provision of this Agreement and
the provision in question shall be modified so as to be rendered enforceable in a manner consistent with the intent of the Parties
insofar as possible under applicable law.

17.

Governing  Law.  This Agreement  shall  be  construed  and  enforced  in  accordance  with  the  laws  of  the  State  of
California without regard to conflicts of law principles. Employee expressly consents to personal jurisdiction and venue in the
state and federal courts for Alameda County, California for any lawsuit filed there against Employee by XOMA arising from or
related to this Agreement.

18.

Fees and Costs. The Parties shall each bear their own costs, expert fees, attorneys’ fees and other fees incurred in

connection with this Agreement.

19.

Counterparts. This Agreement may be executed in counterparts which shall be deemed to be part of one original,

and facsimile and electronic signatures shall be equivalent to original signatures.

-10-

20.

Arbitration.  To ensure the timely and economical resolution of disputes that may arise between Employee and the
Company, both Employee and the Company mutually agree that pursuant to the Federal Arbitration Act, 9 U.S.C. §1-16, and to
the fullest extent permitted by applicable law, Employee will submit solely to final, binding and confidential arbitration any and
all disputes, claims, or causes of action arising from or relating to: the negotiation, execution, interpretation, performance, breach
or  enforcement  of  this  Agreement;  or  Employee’s  employment  with  the  Company  (including  but  not  limited  to  all  statutory
claims); or the termination of Employee’s employment with the Company (including but not limited to all statutory claims).  BY
AGREEING TO THIS ARBITRATION PROCEDURE, BOTH EMPLOYEE AND THE COMPANY WAIVE THE RIGHT TO
RESOLVE ANY  SUCH  DISPUTES  THROUGH A  TRIAL  BY  JURY  OR  JUDGE  OR  THROUGH AN ADMINISTRATIVE
PROCEEDING.    The Arbitrator  will  have  the  sole  and  exclusive  authority  to  determine  whether  a  dispute,  claim  or  cause  of
action  is  subject  to  arbitration  under  this  section  and  to  determine  any  procedural  questions  which  grow  out  of  such  disputes,
claims or causes of action and bear on their final disposition.  All claims, disputes, or causes of action under this section, whether
by  Employee  or  the  Company,  must  be  brought  solely  in  an  individual  capacity,  and  will  not  be  brought  as  a  plaintiff  (or
claimant) or class member in any purported class or representative proceeding, nor joined or consolidated with the claims of any
other person or entity.  The Arbitrator may not consolidate the claims of more than one person or entity, and may not preside over
any form of representative or class proceeding.  To the extent that the preceding sentences in this paragraph are found to violate
applicable law or are otherwise found unenforceable, any claim(s) alleged or brought on behalf of a class will proceed in a court
of  law  rather  than  by  arbitration.   Any  arbitration  proceeding  under  this Arbitration  section  will  be  presided  over  by  a  single
arbitrator and conducted by JAMS, Inc. (“JAMS”) in San Francisco, CA under the then applicable JAMS rules for the resolution
of  employment  disputes  (available  upon  request  and  also  currently  available  at    http://www.jamsadr.com/rules-employment-
arbitration/).  Employee and the Company both have the right to be represented by legal counsel at any arbitration proceeding, at
each  party’s  own  expense.    The Arbitrator  will:  (a)  have  the  authority  to  compel  adequate  discovery  for  the  resolution  of  the
dispute; (b) issue a written arbitration decision, to include the arbitrator’s essential findings and conclusions and a statement of
the award; and (c) be authorized to award any or all remedies that Employee or the Company would be entitled to seek in a court
of  law.    The  Company  will  pay  all  JAMS  arbitration  fees  in  excess  of  the  amount  of  court  fees  that  would  be  required  of
Employee if the dispute were decided in a court of law.  This section will not apply to any action or claim that cannot be subject
to  mandatory  arbitration  as  a  matter  of  law,  including,  without  limitation,  claims  brought  pursuant  to  the  California  Private
Attorneys General Act of 2004, as amended, the California Fair Employment and Housing Act, as amended, and the California
Labor Code, as amended, to the extent such claims are not permitted by applicable law to be submitted to mandatory arbitration
and  such  applicable  law  is  not  preempted  by  the  Federal  Arbitration  Act  or  otherwise  invalid  (collectively,  the  “Excluded
Claims”).    In  the  event  Employee  brings  multiple  claims,  including  one  of  the  Excluded  Claims  listed  above,  the  Excluded
Claims may be filed with a court, while any other claims will remain subject to mandatory arbitration.  Nothing in this section is
intended  to  prevent  either  Employee  or  the  Company  from  obtaining  injunctive  relief  in  court  to  prevent  irreparable  harm
pending  the  conclusion  of  any  such  arbitration. Any  final  award  in  any  arbitration  proceeding  hereunder  may  be  entered  as  a
judgment in the federal and state courts of any competent jurisdiction and enforced accordingly.

-11-

21.
herewith.  

Indemnification.    Employee  shall  execute  the  Company’s  standard  form  of  indemnification  agreement  provided

22.

Complete  Agreement.  This  Agreement,  together  with  Employee’s  Confidentiality  Agreement  and  the  other
agreements referenced herein, forms the complete and exclusive embodiment of the entire agreement between the Parties with
regard  to  this  subject  matter,  and  supersedes  and  replaces  any  other  agreements  or  promises  made  to  Employee  by  anyone,
whether oral or written.

[signature page to follow]

-12-

COMPANY:

XOMA CORPORATION

EMPLOYEE:

By:

/s/ W. Denman Van Ness
W. Denman Van Ness
Lead Independent Director

/s/ Bradley Sitko
Bradley Sitko

-13-

EXHIBIT A

EMPLOYEE CONFIDENTIAL INFORMATION AND
INVENTIONS ASSIGNMENT AGREEMENT

EXHIBIT B

FORM RELEASE OF CLAIMS AGREEMENT

This Release of Claims Agreement (“Release Agreement”) is entered into between XOMA Corporation (“XOMA”) and
Bradley Sitko (“Employee”). XOMA and Employee (collectively, the “Parties”) are parties to an Officer Employment Agreement
(“Employment Agreement”) and agree as follows:

1.

Termination. Employee’s employment with XOMA terminated on _______, 20__.

2.

Release  of  Claims.  In  exchange  for  the  compensation,  benefits  and  other  consideration  to  be  provided  to
Employee under the Employment Agreement that Employee is not otherwise entitled to receive, Employee hereby generally and
completely releases XOMA and XOMA (US) LLC, and their past and present officers, agents, directors, employees, investors,
shareholders,  administrators,  partners,  attorneys,  agents,  insurers,  affiliates,  divisions,  subsidiaries,  parents,  predecessor  and
successor corporations, and assigns (collectively, the “Released Parties”), from, and agrees not to sue or otherwise institute any
legal  or  administrative  proceedings  concerning,  any  and  all  claims,  duties,  liabilities,  obligations  and  causes  of  action,  both
known and unknown, that arise out of or are in any way related to events, acts, conduct or omissions occurring prior to or on the
date Employee signs this Release Agreement (collectively, the “Released Claims”).

The Released Claims include but are not limited to:

(a)

all claims arising out of or in any way related to Employee’s employment with XOMA or the termination

of that employment;

(b)

all  claims  related  to  compensation  or  benefits  from  XOMA,  including  salary,  bonuses,  commissions,
vacation,  paid  time  off,  expense  reimbursements,  severance  pay,  fringe  benefits,  stock,  stock  options,  or  any  other  ownership,
equity or profits interests in XOMA (including but not limited to any right to purchase, or actual purchase, of shares of stock of
XOMA);

(c)

all claims for breach of contract, wrongful termination and breach of the implied covenant of good faith

and fair dealing;

(d)

all  tort  claims,  including  claims  for  fraud,  defamation,  emotional  distress  and  discharge  in  violation  of

public policy;

(e)

all  federal,  state  and  local  statutory  claims,  including  claims  for  discrimination,  harassment,  retaliation,
attorneys’  fees  or  other  claims  arising  under  the  Federal  Civil  Rights Act  of  1964,  the  federal  Civil  Rights Act  of  1991,  the
federal Age Discrimination in Employment Act of 1967 (the “ADEA”), the federal Americans with Disabilities Act of 1990, the
federal  Fair  Labor  Standards  Act,  the  federal  the  Employee  Retirement  Income  Security  Act  of  1974,  the  federal  Worker
Adjustment and Retraining Notification Act, the California Fair

Employment  and  Housing Act  and  the  California  Labor  Code,  and  all  amendments  to  and  regulations  issued  under  each  such
statute;

(f)

(g)

discrimination; and

all claims for violation of the federal or any state constitution;

all  claims  arising  out  of  any  other  laws  and  regulations  relating  to  employment  or  employment

(h)

all claims for attorneys’ fees and costs.

3.

Acknowledgment of Waiver of Claims under ADEA. Employee acknowledges that Employee is knowingly and
voluntarily  waiving  and  releasing  any  rights  Employee  may  have  under  the ADEA,  and  that  the  consideration  given  for  the
waiver and release in this Section 3 is in addition to anything of value to which Employee is already entitled. Employee further
acknowledges that Employee has been advised, as required by the ADEA, that: (a) Employee’s waiver and release do not apply
to any rights or claims that may arise after the date Employee signs this Release Agreement; (b) Employee should consult with an
attorney prior to signing this Release Agreement (although Employee may choose voluntarily not to do so); (c) Employee has
twenty-one  (21)  days  to  consider  this  Release Agreement  (although  Employee  may  choose  voluntarily  to  sign  it  earlier);  (d)
Employee has seven (7) days following the date Employee signs this Release Agreement to revoke the Release Agreement (by
providing written notice of Employee’s revocation to the Legal Department at XOMA); and (e) this Release Agreement will not
be effective until the date upon which the revocation period has expired, which will be the eighth (8th) day after the date that this
Release Agreement is signed by Employee provided that Employee does not revoke it (the “Effective Date”).

4.

Waiver  of  Unknown  Claims.  In  giving  the  releases  set  forth  in  this  Release Agreement,  which  include  claims
which may be unknown to Employee at present, Employee acknowledges that Employee has read and understands Section 1542
of the California Civil Code which reads as follows:

A  GENERAL  RELEASE  DOES  NOT  EXTEND  TO  CLAIMS  WHICH  THE  CREDITOR
OR RELEASING PARTY DOES NOT KNOW OR SUSPECT TO EXIST IN HIS OR HER
FAVOR AT THE TIME OF EXECUTING THE RELEASE, WHICH IF KNOWN BY HIM
OR  HER  WOULD  HAVE  MATERIALLY  AFFECTED  HIS  OR  HER  SETTLEMENT
WITH THE DEBTOR OR RELEASED PARTY.

Employee hereby expressly waives and relinquishes all rights and benefits under that section and any law or legal principle of
similar effect in any jurisdiction with respect to Employee’s release of claims herein, including but not limited to the release of
unknown and unsuspected claims.

5.

Excluded  Claims.  Notwithstanding  the  foregoing,  the  following  are  not  included  in  the  Released  Claims  (the
“Excluded Claims”): (a) any rights or claims for indemnification Employee may have pursuant to any written indemnification
agreement with XOMA to which Employee is a party or under applicable law; (b) any rights which cannot be waived as a matter
of law; (c) any rights Employee has to file or pursue a claim for workers’ compensation or

unemployment insurance; and (d) any claims for breach of the Employment Agreement or this Release Agreement. In addition,
nothing in this Release Agreement prevents Employee from filing, cooperating with or participating in any proceedings
before  the  Equal  Employment  Opportunity  Commission,  the  Department  of  Labor,  the  California  Department  of  Fair
Employment and Housing or any analogous federal or state government agency, except that Employee acknowledges and
agrees that Employee hereby waives Employee’s right to any monetary benefits in connection with any such claim, charge
or proceeding. Employee represents and warrants that, other than the Excluded Claims, Employee is not aware of any claims
Employee has or might have against any of the Released Parties that are not included in the Released Claims.

6.

Representations.  Employee  represents  that  Employee  has  been  paid  all  compensation  owed  and  for  all  time
worked; Employee has received all the leave and leave benefits and protections for which Employee is eligible pursuant to the
federal Family and Medical Leave Act, the California Family Rights Act, any applicable law or XOMA policy; and Employee
has not suffered any on the job injury for which Employee has not already filed a workers’ compensation claim.

7.

Nondisparagement.  Employee  agrees  not  to  make  any  statement  intending  disparage  XOMA,  and  XOMA’s
officers, directors, employees, shareholder, members and agents, in any manner likely to be harmful to them or their business,
business reputation or personal reputation. XOMA agrees that its directors and officers will not make any statements intending to
disparage Employee in any manner likely to be harmful to Employee’s business reputation or personal reputation. Nothing in this
provision, however, shall prevent either Employee or XOMA from responding accurately and fully to any request for information
if  required  by  legal  process  or  in  connection  with  a  government  investigation.  In  addition,  nothing  in  this  provision  or  this
Release Agreement is intended to prohibit or restrain Employee in any manner from making disclosures that are protected under
the whistleblower provisions of federal law or regulation or under other applicable law or regulation.

8.

No  Voluntary  Adverse  Action.  Employee  agrees  that  Employee  will  not  voluntarily  provide  assistance,
information or advice, directly or indirectly (including through agents or attorneys), to any person or entity in connection with
any  proposed  or  pending  litigation,  arbitration,  administrative  claim,  cause  of  action,  or  other  formal  proceeding  of  any  kind
brought against XOMA, its parent or subsidiary entities, affiliates, officers, directors, employees or agents, nor shall Employee
induce or encourage any person or entity to bring any such claims; provided, however, that Employee must respond accurately
and truthfully to any question, inquiry or request for information when required by legal process (e.g., a valid subpoena or other
similar compulsion of law) or as part of a government investigation.

9.

Return  of  XOMA  Property;  Compliance  with  Proprietary  Information  Agreement.  Employee  represents  that
Employee  has  complied  fully  with  Section  7(g)  of  the  Employment Agreement  and  the  provisions  of  Employee’s  Employee
Confidential  Information  and  Invention  Assignment  Agreement  with  XOMA  (the  “Confidentiality  Agreement”),  and  further
agrees to continue to abide by Employee’s continuing obligations under the Confidentiality Agreement.

10.

Fees and Costs. The Parties shall each bear their own costs, expert fees, attorneys’ fees and other fees incurred in

connection with this Release Agreement.

11.

No Representations. Employee represents that Employee has had the opportunity to consult with an attorney, and
has  carefully  read  and  understands  the  scope  and  effect  of  the  provisions  of  this  Release Agreement.  Neither  Party  has  relied
upon any representations or statements made by the other Party which are not specifically set forth in this Release Agreement.

12.

Severability. In the event any provision of this Release Agreement is determined to be invalid or unenforceable, in
whole or in part, this determination shall not affect any remaining part of such provision or any other provision of this Release
Agreement and the provision in question shall be modified so as to be rendered enforceable in a manner consistent with the intent
of the Parties insofar as possible under applicable law.

13.

Entire Agreement. This  Release Agreement,  together  with  the  Employment Agreement,  forms  the  complete  and
exclusive  embodiment  of  the  entire  agreement  between  the  Parties  with  regard  to  this  subject  matter. This  Release Agreement
may  only  be  modified  or  amended  in  a  writing  signed  by  Employee  and  a  duly  authorized  officer  of  XOMA  other  than
Employee.

14.

Governing Law. This Release Agreement shall be construed and enforced in accordance with the laws of the State
of California without regard to conflicts of law principles. Employee expressly consents to personal jurisdiction and venue in the
state and federal courts for Alameda County, California for any lawsuit filed there against Employee by XOMA arising from or
related to this Release Agreement.

15.

Counterparts. This Release Agreement may be executed in counterparts which shall be deemed to be part of one

original, and facsimile and electronic signatures shall be equivalent to original signatures.

COMPANY:

XOMA CORPORATION

EMPLOYEE:

By:

/s/ W. Denman Van Ness
W. Denman Van Ness
Lead Independent Director

/s/ Bradley Sitko
Bradley Sitko

Execution Version

Exhibit 10.56

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

IP ACQUISITION AGREEMENT

This IP ACQUISITION AGREEMENT (this “Agreement”), dated as of November 21, 2022 (the “Effective Date”), is
made by and between OBSEVA, SA, a Swiss corporation having its principal place of business at Chemin des Aulx, 12, 1228
Plan-les-Ouates,  Geneva,  Switzerland  (“Seller”),  and  XOMA  (US)  LLC,  a  Delaware  limited  liability  company  having  its
principal place of business at 2200 Powell Street, Suite 310, Emeryville, CA 94608 (“Buyer”).

WHEREAS,  Seller  wishes  to  sell  to  Buyer,  and  Buyer  wishes  to  purchase  from  Seller,  all  of  Seller’s  right,  title,  and
interest  in  and  to  certain  Acquired  Patents  (as  defined  below)  and  Acquired  Know-How  (as  defined  below)  and  obtain  an
assignment of the Licenses (as defined below), in each case, subject to the terms and conditions set forth herein.

NOW THEREFORE, in consideration of the mutual covenants and agreements set forth herein and for other good and

valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

1.

Purchase of Assets and Assumption of Licenses. Subject to the terms and conditions set forth herein, Seller hereby
irrevocably sells, assigns, transfers, and conveys to Buyer, and Buyer hereby accepts, all right, title, and interest in and to the
following (collectively, the “Acquired Rights”):

(a)

the  patents  and  patent  applications  listed  in  Schedule  1,  and  all  patents  that  issue  from  such  patent
applications,  and  all  continuations,  and  continuations-in-part,  and  divisionals,  and  extensions,  and  substitutions,  and
reissues, and re-examinations, and renewals, of any of the foregoing, and rights to apply for new patents with respect to
any of the foregoing (“Patents”), and any other patents or patent applications that claim a benefit or priority from any
Patents, and inventions disclosed and claimed in any of the foregoing (collectively, the “Acquired Patents”);

(b)

all Know-How as defined in the Organon License (as defined below) that is owned or has been developed
by Obseva relating to the subject matter of the Organon License and/or the Merck Serono License (as defined below),
including, but not limited to the general description of same set forth in Schedule 2 (collectively, the “Acquired Know-
How”);

(c)

those  certain  license  agreements  listed  on  Schedule  3  (individually,  the  “Organon  License”  and  the
“Merck  Serono  License”)  and  all  other  licenses  and  similar  contractual  rights  reasonably  necessary  for  the  use,
exploitation,  or  commercialization  of  the Acquired  Patents  (collectively  with  the  Organon  License  and  Merck  Serono
License, the “Licenses”);

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

(d)

all milestones, royalties, fees, income, payments, and other proceeds now or hereafter due or payable to

Seller under the Licenses;

(e)

all claims and causes of action with respect to any of the foregoing, whether accruing before, on, or after
the date hereof, including all rights to and claims for damages, restitution, and injunctive and other legal and equitable
relief for past, present, and future infringement, misappropriation, violation, breach, or default; and

(f)

all  other  rights,  privileges,  and  protections  of  any  kind  whatsoever  of  Seller  accruing  under  any  of  the

foregoing provided by any applicable law, treaty, or international convention throughout the world.

2.

Assumption of Licenses/No Liabilities. Subject to the terms and conditions set forth herein, Buyer hereby accepts
Seller’s assignment of the Licenses, assumes all of Seller’s duties and obligations under the Licenses, and agrees to pay, perform,
and  discharge,  as  and  when  due,  all  of  the  liabilities  and  obligations  of  Seller  under  the  Licenses  accruing  after  the  Effective
Date, but only to the extent that such liabilities and obligations do not relate to any breach, default, or violation by Seller on or
prior  to  the  Effective  Date  (the  “Assumed  Liabilities”).  Other  than  the  Assumed  Liabilities,  Buyer  neither  assumes  nor  is
otherwise liable for any obligations, claims, or liabilities of Seller of any kind, whether known or unknown, contingent, matured,
or otherwise, whether currently existing or hereafter arising (collectively, “Excluded Liabilities”), including, for the avoidance
of doubt, any obligations, claims, or liabilities arising from or in connection with any circumstances, causes of action, breach,
violation, default, or failure to perform by or of Seller with respect to the Licenses on or prior to the Effective Date.

3.

Purchase Price.

(a)

The  aggregate  purchase  price  for  the  Acquired  Rights  shall  be  FIFTEEN  MILLION  US  Dollars

(US$15,000,000) (the “Purchase Price”).

(b)

At Closing, Buyer shall pay, or cause to be paid, the Purchase Price, minus the Expense Reimbursement
Amount in accordance with Section 12, to Seller. Payment shall be made in US dollars by wire transfer of immediately
available funds to Seller’s bank account identified in the wire transfer instructions previously provided to Buyer.

If  Buyer  fails  to  make  timely  and  proper  payment  of  the  Purchase  Price,  Seller  may  terminate  this Agreement

effective immediately on written notice to Buyer.

(c)

Earn-out  Payments. As  additional  consideration  for  Buyer’s  purchase  of  the Acquired  Rights,  at  such

times as provided in Section 3(d), Buyer (or, at the direction

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

2

of  Buyer,  a  designee  of  Buyer  so  long  as  Buyer  remains  an  obligor  thereof)  shall  pay  to  Seller  during  the  term  of  the
Licenses the following amounts (each, an “Earn-Out Payment” and collectively, the “Earn-Out Payments”):

(i)

[*]  of  all  future  Non-Sales  Milestones  payable  to  Buyer  under  section  7.2(a)  of  the  Organon

License; and

(ii)

[*] of all future Sales-Based Milestones #[*] and #[*] payable to Buyer under section 7.3(a) of the
Organon  License  (i.e.,  the  Sales  Milestones  payable  upon  Net  Sales  in  a  given  calendar  year  equaling  or
exceeding [*] and the Sales Milestones payable upon Net Sales in a given calendar year exceeding [*]).

For purposes of this Section 3(c), terms used and not otherwise defined herein shall have the meanings set forth in the
Organon License.

(d)

Timing of Payment of Earn-out Payments. Subject to Section 3(e), each Earn-out Payment that Buyer is
required to make pursuant to Section 3(c) hereof shall be paid in full no later than [*] business days following the date
upon which Buyer receives any of the payments specified therein pursuant to the Organon License.

(e)

Right of Set-off. Buyer shall have the right to withhold and set off against any amount otherwise due to be
paid pursuant to this Section 3, the amount of any Losses of a Buyer Indemnified Party that are determined by a final and
enforceable decision to be due and payable to such Buyer Indemnified Party by Seller in accordance with Section 8 of
this Agreement.

(f)

No Security. The parties hereto understand and agree that (i) the contingent rights to receive any Earn-out
Payment shall not be represented by any form of certificate or other instrument, are not transferable and do not constitute
an equity or ownership interest in Buyer or any of its affiliates, (ii) Seller shall not have any rights as a securityholder of
Buyer or any of its affiliates as a result of Seller’s contingent right to receive any Earn-out Payment hereunder, and (iii)
no interest is payable with respect to any Earn-out Payment.

(g)

Interest on Late Payments. If Seller does not receive payment of any sum due to it on or before the due
date, interest shall thereafter accrue on the sum due to Seller until the date of payment at the per annum rate of [*] over
the  then-current  prime  rate  reported  in  The  Wall  Street  Journal  or  the  maximum  rate  allowable  by  applicable  laws,
whichever is lower, with such interest compounded quarterly.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

3

(h)

Audit Rights. Following the Effective Time and continuing thereafter through the term of the Licenses,
Buyer shall maintain reasonably complete and accurate records in sufficient detail to permit Seller to confirm the receipt
of the milestone events under the Organon License. Upon reasonable prior written notice, in any event no less than [*]
days prior written notice, such records shall be available for examination during regular business hours and in a manner
that does not interfere with Buyer’s business activities for a period of [*] years from the end of the calendar year to which
they  pertain,  and  not  more  often  than  once  each  calendar  year,  by  an  internationally-recognized  independent  certified
public accountant selected by Seller and reasonably acceptable to Buyer, for the sole purpose of verifying the accuracy of
any payments due under this Agreement. Once examined, such records shall no longer be subject to further examination.
Any such auditor shall not disclose Buyer’s Confidential Information, except to the extent such disclosure is necessary to
verify  the  accuracy  of  the  amount  of  payments  due  under  this Agreement. Any  amounts  shown  to  be  owed  but  unpaid
shall be paid within [*] days from the accountant’s report, plus interest (as set forth in Section 3(f)) from the original due
date. Seller shall bear the full cost of such audit unless such audit discloses a failure by Buyer to pay any amount due for
the audited period, in which case Buyer shall bear the full cost of such audit.

4.

Closing  and  Deliverables.  Subject  to  the  terms  and  conditions  of  this  Agreement,  the  consummation  of  the
transactions contemplated by this Agreement (the “Closing”) will occur on the date hereof, immediately after the execution of
this Agreement, and will take place by the exchange and release of pdfs of manually executed signature pages delivered by e-
mail or other electronic means.

(a)

At or prior to the Closing, Seller shall deliver to Buyer the following:

(i)

an  assignment  in  the  form  of  Exhibit  A  (the  “Assignment”)  and  duly  executed  by  Seller,

transferring all of Seller’s right, title, and interest in and to the Acquired Rights to Buyer;

(ii)

the complete prosecution files, including original granted patents, for all Acquired Patents in such
form and medium as reasonably requested by Buyer, together with a list of local prosecution counsel contacts, and
all  such  other  documents,  correspondence,  and  information  as  are  reasonably  requested  by  Buyer  to  register,
prosecute  to  issuance,  own,  enforce,  or  otherwise  use  the Acquired  Rights,  including  any  maintenance  fees  due
and deadlines for actions to be taken concerning prosecution and maintenance of all Acquired Patents in the [*]
period following the date hereof;

(iii)

all documents and files (whether paper or stored electronically) in Seller’s possession that describe,

contain or reflect (x) the Acquired Know-How

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

4

and  (y)  the  Merck  Serono  Know-How  as  defined  in  the  Merck  Serono  License,  including  writings,  drawings,
graphs, charts, photographs, sound recordings, images, and other data or data compilations experimental data and
results, assay protocols, designs, formulas, experimental procedures and specifications; and

(iv)

a  consent  in  the  form  of  Exhibit  B  and  duly  executed  by  JGB  (Cayman)  Port  Ellen  Ltd.  with

respect to the consummation of the transactions contemplated by this Agreement.

(b)

Substantially simultaneously with the Closing, and in any event, no later than by the end of the business
day on which the Closing occurs, Seller shall deliver to Buyer evidence reasonably satisfactory to Buyer that Seller has
paid each payee of an account payable the amount set out opposite its name in Schedule 4, unless otherwise noted therein.

(c)

At the Closing, Buyer shall pay to Seller the Purchase Price, minus the Expense Reimbursement Amount,

in accordance with Section 3(b) and Section 12.

5.

Further Assurances; Recordation; Covenants.

(a)

From and after the date hereof, each of the parties hereto shall, at their own expense, execute and deliver
such additional documents, instruments, conveyances, and assurances, and take such further actions as may be reasonably
required  to  carry  out  the  provisions  hereof  and  give  effect  to  the  transactions  contemplated  by  this Agreement  and  the
documents to be delivered hereunder.

(b)

No later than the end of the business day on which the Closing occurs, Seller shall pay each payee of an
account  payable  the  amount  set  out  opposite  its  name  in  Schedule  4  (unless  otherwise  noted  therein)  and  provide
confirmation of each such payoff, as applicable, to Buyer in a form acceptable to Buyer in its reasonable judgment.

(c)

Without  limiting  the  foregoing,  and  without  limiting  Section  4(a),  Seller  shall  execute  and  deliver  to
Buyer, such assignments and other documents, certificates, and instruments of conveyance in a form satisfactory to Buyer
and  suitable  for  filing  with  the  United  States  Patent  and  Trademark  Office  (“USPTO”)  and  the  registries  and  other
recording  governmental  authorities  in  all  applicable  jurisdictions  (including  with  respect  to  legalization,  notarization,
apostille, certification, and other authentication) as reasonably necessary to record and perfect the Assignment, and to vest
in Buyer all right, title, and interest in and to the Acquired Rights in accordance with applicable law. As between Seller
and Buyer, Buyer shall be responsible, at Buyer’s expense, for filing the Assignment, and other documents, certificates,
and  instruments  of  conveyance  with  the  applicable  governmental  authorities;  provided  that,  upon  Buyer’s  reasonable
request,

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

5

Seller shall take such steps and actions, and provide such cooperation and assistance, at Seller’s expense, to Buyer and its
successors, assigns, and legal representatives, including the execution and delivery of any affidavits, declarations, oaths,
exhibits,  assignments,  powers  of  attorney,  or  other  documents,  as  may  be  reasonably  necessary  to  effect,  evidence,  or
perfect the assignment of the Acquired Rights to Buyer, or any of Buyer’s successors or assigns.

(d)

Seller acknowledges that under the terms and conditions of the Licenses, Buyer, as the assignee thereof, is
obligated  to  be  a  member  of  and  participate  in  joint  advisory  committees,  to  have  alliance  managers,  and  to  otherwise
have  skilled  and  knowledgeable  representation  with  respect  to  its  activities  with  its  counterparties  under  and  in
furtherance of the Licenses (collectively, the “Representative Activities”). As such, to assist Buyer in the performance
and  assumption  of  the  Representative  Activities,  Seller  shall,  at  no  charge  to  Buyer,  make  available  to  Buyer  on  a
transition basis those of Seller’s personnel who have represented Seller in connection with the Representative Activities,
and, if requested by Buyer, such personnel shall represent Buyer in connection with such Representative Activities for a
period of not more than [*] following the Effective Date (as may be shortened or lengthened as mutually agreed upon by
the parties). In all cases such personnel shall represent Buyer in good faith, to the best of their abilities, and in the same
manner as such personnel represented Seller in connection with the Representative Activities prior to the Effective Date.
Such  personnel  shall  work  in  conjunction  and  consult  with  Buyer  in  connection  with  their  participation  in  all
Representative  Activities  and  will  strictly  follow  any  feedback  or  instructions  given  by  Buyer  with  respect  to  the
Representative  Activities.  Such  personnel  shall  not  undertake  any  activities  which  would  cause  Buyer  to  breach  any
License. Buyer shall transition all Representative Activities to personnel of Buyer within [*] after the Effective Date. All
information learned or observed by Seller’s personnel in the course of performing the Representative Activities is and will
be deemed to be Buyer’s confidential information.

(e)

Within  [*]  after  the  Effective  Date,  Seller  shall,  and  shall  cause  its  affiliates  to,  without  additional
compensation,  disclose  and  make  available  to  Buyer  or  its  designee,  in  electronic  or  hard  copy  form,  as  Buyer  may
reasonably request, all Acquired Know-How and Merck Serono Know-How to the extent not already delivered at Closing
pursuant to Section 4(a)(iii). In connection with such transfer, Seller, in a timely manner and at no charge to Buyer, shall
assist  Buyer  in  the  use  and  understanding  of  the  Acquired  Know-How  and  Merck  Serono  Know-How,  including
providing technical assistance and making its technical personnel available to Buyer or its designee. Without prejudice to
the  generality  of  the  foregoing,  if  visits  of  Seller’s  representatives  to  Buyer’s  or  its  designee’s  facilities  are  reasonably
requested by Buyer for purposes of transferring the Acquired Know-How and Merck Serono Know-How or for purposes
of Buyer acquiring expertise on the practical application of such Acquired Know-How and Merck Serono Know-How or
assisting on issues arising during the exploitation of any Acquired Know-How and Merck Serono Know-How, Seller shall
send appropriate representatives to Buyer’s or its designee’s facilities [*]. Notwithstanding the foregoing, Seller’s

6

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

assistance  shall  not  exceed  [*]  during  such  [*]  period  without  Seller’s  prior  consent  (which  consent  shall  not  be
unreasonably withheld, conditioned or delayed).

(f)

Notwithstanding the transfer and assignment of the Acquired Rights from Seller to Buyer, Seller shall, [*],
perform any and all [*] obligations applicable to or binding on Buyer under the Licenses, including, without limitation,
[*] (as such terms are defined in the Organon License) in accordance with all of the terms and conditions set forth in the
Organon License as if Seller continued to be a party thereto. Seller shall continue to fulfill all of its obligations under, and
shall not breach, that certain [*] Agreement between Seller and Organon International GmbH (“Organon”) dated [*] (the
“Organon [*] Agreement”). In connection with Seller’s obligation to [*], Buyer hereby grants to Seller a royalty-free,
fully paid-up, worldwide, non-exclusive license, with the right to grant sublicenses, under the Acquired Rights solely for
[*] pursuant to the Organon License [*].

6.

Representations and Warranties of Seller. Seller represents and warrants to Buyer that the statements contained in
this Section 6 are true and correct as of the date hereof, except as set forth in the correspondingly numbered sections of the Seller
disclosure schedules, attached hereto. For purposes of this Section 6, “Seller’s knowledge,” “knowledge of Seller,” and similar
phrases shall mean the actual or constructive knowledge of any director or officer of Seller, after due inquiry.

(a)

Organization. Seller is a corporation duly organized, validly existing and in good standing under the laws
of Switzerland and has all necessary power and authority, and all licenses, permits, franchises, authorizations, consents
and approvals, required to own its property and conduct its business as now conducted. Seller is duly qualified to transact
business  and  is  in  good  standing  in  each  jurisdiction  in  which  such  qualification  or  good  standing  is  required  by  all
applicable laws, rules, regulations and orders of any governmental authority applicable to Seller or any of its properties or
assets.

(b)

Authority  of  Seller;  Enforceability.  Seller  has  the  full  right,  power,  and  authority  to  enter  into  this
Agreement and perform its obligations hereunder. The execution, delivery, and performance of this Agreement by Seller
has been duly authorized by all necessary organizational action of Seller and no other act or proceeding on the part of
Seller  is  necessary  to  authorize  the  execution,  delivery,  or  performance  by  Seller  of  this  Agreement  or  any  other
agreement  contemplated  hereby  or  thereby.  This  Agreement  has  been  duly  executed  and  delivered  by  Seller  and,
assuming the due execution and delivery of this Agreement and the other agreements contemplated hereby by the other
parties hereto and thereto, this Agreement constitutes, and the other agreements contemplated hereby upon execution and
delivery by Seller will each constitute, a valid and binding obligation of Seller, enforceable against Seller in accordance
with its and their terms.

7

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

(c)

No  Conflicts;  Consents.  The  execution,  delivery,  and  performance  by  Seller  of  this Agreement,  and  the
consummation of the transactions contemplated hereby, do not and will not: (i) violate or conflict with the certificate of
incorporation,  by-laws,  or  other  organizational  documents  of  Seller;  (ii)  violate  or  conflict  with  any  judgment,  order,
decree, statute, law, ordinance, rule, or regulation; (iii) conflict with, or result in (with or without notice or lapse of time
or  both),  any  violation  of  or  default  under,  or  give  rise  to  a  right  of  termination,  acceleration,  or  modification  of  any
obligation or loss of any benefit under, any contract or other instrument to which this Agreement or any of the Acquired
Rights  are  subject  (including  any  License);  or  (iv)  result  in  the  creation  or  imposition  of  any  encumbrances  on  the
Acquired Rights. No consent, approval, waiver, or authorization is required to be obtained by Seller from its stockholders
or any other person, group of persons, or entity (including any legal or governmental authority) in connection with the
execution,  delivery,  and  performance  by  Seller  of  this  Agreement,  or  to  enable  Buyer  to  register,  own,  and  use  the
Acquired Rights.

(d)

Ownership. Except as set forth on Schedule 1, Seller is the exclusive owner of all right, title, and interest
in and to the Acquired Patents and Acquired Know-How, free and clear of all title defects or objections, liens, security
interests,  and  other  encumbrances.  Seller  is  in  full  compliance  with  all  legal  requirements  applicable  to  the Acquired
Rights and Seller’s ownership and use thereof.

(e)

Patents and Applications. Schedule 1 contains a correct, current, and complete list of all patents and patent
applications  related  to  the  Licenses,  including  the Acquired  Patents  and  the  Merck  Serono  Patents  (as  defined  in  the
Merck Serono License), specifying as to each, as applicable, the title, the record owner, the jurisdiction in which it has
been issued or filed, the patent number or application serial or publication number, and the issue or application filing date.
All required filings and fees related to the Acquired Patents listed on Schedule 1 have been timely filed with and paid to
the  USPTO  and  other  relevant  governmental  authorities  and  authorized  registrars,  and  all  such  patents  and  patent
applications have at all times been and remain in good standing. Seller has provided Buyer with true and complete copies
of all documents, certificates, office actions, responses, correspondence, and other filings and materials related to all such
Acquired Patents. Seller has satisfied, and will continue to satisfy, all of its obligations to the inventors of the Acquired
Patents (if any).

(f)

Know-How. Seller has taken commercially reasonable steps to protect the rights of Seller in the Acquired
Know-How and, except under confidentiality obligations contained in the Licenses, there has not been any disclosure by
Seller of any Acquired Know-How to any third party.

(g)

Validity and Enforceability. No claim in any of the Acquired Patents has been deemed invalid by a court of
competent jurisdiction, and the Acquired Patents are subsisting, and enforceable by Seller in all applicable jurisdictions.
The Acquired Patents

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

8

are not subject to any pending or threatened (in writing) challenge or claim to their validity, subsistence, or enforceability.
Without limiting the foregoing, neither the inventors of the Acquired Patents nor their counsel (i) intentionally failed to
disclose any material, non-cumulative prior art references to the United States Patent and Trademark Office (the “PTO”)
or any foreign patent offices requiring such disclosure in connection with the prosecution of any Acquired Patents, (ii)
made any material misstatements or misrepresentations to the PTO or any foreign patent offices in connection with the
prosecution of any of the Acquired Patents, or (iii) engaged in any act or omission inconsistent with the duty of candor to
the PTO. The inventions and discoveries described in the Acquired Patents were made solely by the inventors named in
the  Acquired  Patents,  without  misappropriation  of  any  trade  secrets,  confidential  information,  or  other  rights  of  any
person. The inventors named in the Acquired Patents that are employees or agents of Seller had no obligation to assign
the inventions claimed by the Acquired Patents to any third party based on any form of employment and/or consulting
agreement or relationship. Seller is not aware of any prior art that must be disclosed to any governmental office in which
a given patent application has been filed (based on relevant disclosure obligations). Seller and those authorized by Seller
to make, offer for sale, sell or import into the United States any article covered by the Acquired Patents have complied
with the marking provisions of 35 U.S.C. section 287(a) with respect to the Acquired Patents.

(h)

Legal  Actions.  There  are  no  actions  (including  any  US  Patent  Trial  and  Appeal  Board  proceedings  or
European Opposition Proceedings) settled, pending, or threatened in writing (including in the form of offers to obtain a
license): (i) alleging any infringement, misappropriation, or other violation of the intellectual property rights of any third
party based on the use or exploitation of any Acquired Rights; (ii) challenging the validity, patentability, enforceability,
issuance,  inventorship  or  ownership  of  any  Acquired  Patents  or  Acquired  Know-How  or  Seller’s  rights  with  respect
thereto;  or  (iii)  by  Seller  alleging  any  infringement,  misappropriation,  or  other  violation  by  any  third  party  of  any
Acquired Rights.

(i)

Licenses. Seller has provided Buyer with true and complete copies of all Licenses (or in the case of any
oral  agreements,  a  complete  and  accurate  written  description  thereof),  including  all  modifications,  amendments,  and
supplements  thereto  and  waivers  thereunder.  Each  License  is  valid,  binding,  in  full  force  and  effect,  and  enforceable
between Seller and the other parties thereto, and neither Seller nor, to Seller’s knowledge, any other party thereto is in
breach of or default under (or is alleged to be in breach of or default under) any License, or has provided or received any
written notice of breach of, default under, or any actual or intended termination of any License, nor to Seller’s knowledge,
is there any basis to provide or receive any such notice. Seller has not received any written notice from Organon or any
affiliate thereof that Organon intends to wind-down, limit, or suspend its commercialization activities under the Organon
License or otherwise take any action that would adversely effect the sale of Licensed Products (as defined in the Organon
License), nor is Seller aware of any basis

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

9

for such conduct or any such notice. Seller has not waived or relinquished any rights under any License.

(j)

Accounts  Payable.  There  are  no  liabilities,  debts,  claims  or  obligations  of  any  nature  of  Seller,  whether
known, unknown, accrued, absolute, direct or indirect, contingent, determined, determinable or otherwise, whether due or
to become due, except (i) the convertible notes issued to JGB (Cayman) Port Ellen Ltd. and (ii) the accounts payable set
forth on Schedule 4.

7.

Representations and Warranties of Buyer. Buyer represents and warrants to Seller that the statements contained in
this Section 7 are true and correct as of the date hereof, except as set forth in the correspondingly numbered sections of the Buyer
disclosure schedules, attached hereto.

(a)

Organization.  Purchaser  is  a  limited  liability  company,  duly  organized,  validly  existing  and  in  good
standing under the laws of the State of Delaware, and has all powers and authority, and all licenses, permits, franchises,
authorizations,  consents  and  approvals  of  all  applicable  governmental  authorities,  required  to  own  its  property  and
conduct its business as now conducted.

(b)

Authority  of  Buyer;  Enforceability.  Buyer  has  the  full  right,  power,  and  authority  to  enter  into  this
Agreement and perform its obligations hereunder. The execution, delivery, and performance of this Agreement by Buyer
have been duly authorized by all necessary organizational action of Buyer, and no other act or proceeding on the part of
Buyer  is  necessary  to  authorize  the  execution,  delivery,  or  performance  by  Buyer  of  this  Agreement  or  any  other
agreement  contemplated  hereby  or  thereby.  This  Agreement  has  been  duly  executed  and  delivered  by  Buyer  and,
assuming the due execution and delivery of this Agreement and the other agreements contemplated hereby by the other
parties hereto and thereto, this Agreement constitutes, and the other agreements contemplated hereby upon execution and
delivery by Buyer will each constitute, a valid and binding obligation of Buyer, enforceable against Buyer in accordance
with its and their terms.

(c)

No  Conflicts;  Consents.  The  execution,  delivery,  and  performance  by  Buyer  of  this Agreement,  and  the
consummation of the transactions contemplated hereby, do not and will not: (i) violate or conflict with the certificate of
incorporation,  by-laws,  or  other  organizational  documents  of  Buyer;  (ii)  violate  or  conflict  with  any  judgment,  order,
decree, statute, law, ordinance, rule, or regulation; or (iii) conflict with, or result in (with or without notice or lapse of
time, or both), any violation of or default under, or give rise to a right of termination, acceleration, or modification of, any
obligation or loss of any benefit under, any contract or other instrument to which this Agreement is subject. No consent,
approval, waiver, or authorization is required to be obtained by Buyer from

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

10

any person or entity (including any governmental authority) in connection with the execution, delivery, and performance
by Buyer of this Agreement.

8.

Indemnification.

(a)

Survival. Subject to Section 8(a)(i) and 8(a)(ii) hereto, all representations and warranties contained herein
and all related rights to indemnification shall continue in full force and effect until 11:59 p.m. (Eastern time) on the date
that is [*] from Closing. The covenants and agreements contained in this Agreement shall survive the Closing until fully
performed in accordance with their respective terms.

(i)

(ii)

The representations and warranties of Seller in [*] shall survive [*] following the Closing; and

The representations and warranties of Buyer in [*] shall survive [*] following the Closing.

Notwithstanding the foregoing or anything to the contrary in this Agreement, (i) if an indemnification claim is made prior
to  the  expiration  of  the  applicable  survival  period  in  accordance  with  the  terms  of  this  Section  8,  then  such  applicable
representation, warranty, covenant or agreement shall survive as to such claim until all Losses (as defined below) arising
out of or resulting from such claim have been fully paid in accordance with the terms of this Agreement, and (ii) none of
the  survival  periods  or  limitations  contained  in  this  Section  8  shall  apply  to  any  claims  relating  to  fraud  or  intentional
misrepresentation.

(b)

Agreement  to  Indemnify.  Each  party  (the  “Indemnifying  Party”)  shall  defend,  indemnify,  and  hold
harmless  the  other  party,  its  affiliates,  and  their  respective  shareholders,  directors,  officers,  and  employees  (each,  an
“Indemnified  Party”)  from  and  against  all  losses,  damages,  liabilities,  deficiencies,  claims,  actions,  judgments,
settlements, interest, awards, penalties, fines, fees, costs, or expenses of whatever kind, including reasonable attorneys’
fees,  the  cost  of  enforcing  any  right  to  indemnification  hereunder,  and  the  cost  of  pursuing  any  insurance  providers
(collectively,  “Losses”)  arising  out  of  or  in  connection  with  (i)  any  breach  or  alleged  breach  of  any  representation,
warranty or certification made by the Indemnifying Party in, or pursuant to, this Agreement, (ii) any breach or default by
the Indemnifying Party in respect of any covenant or agreement made by the Indemnifying Party in this Agreement, (iii)
any  Excluded  Liabilities,  and  (iv)  any  third-party  claim,  suit,  action,  or  proceeding  (each,  a  “Third-Party  Claim”)
arising on or after the date hereof and asserted against the Indemnified Party relating to the transactions contemplated in
this Agreement, as applicable.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

11

(c)

Limitations. Notwithstanding anything in this Agreement to the contrary, the aggregate amount required to
be paid by the Indemnifying Party to the Indemnified Party under Section 8(b)(i) for any breach or alleged breach of any
representation, warranty or certification, or pursuant to, this Agreement shall not exceed an amount equal to [*], provided,
however,  that  the  limitation  set  forth  in  this  Section  8(c)  shall  not  be  applicable  to  claims  for  fraud  or  intentional
misrepresentation.

(d)

Indemnification Procedures.

(i)

Notice of Claim. An Indemnified Party may assert a claim for indemnification, whether for its own
Losses  or  for  Losses  incurred  by  any  other  Indemnified  Party  by  giving  the  Indemnifying  Party  written  notice
thereof (“Notice of Claim”). Each Notice of Claim given pursuant to this Section 8(d) shall contain a description,
in reasonable detail to the extent known to the Indemnified Party, of the facts, circumstances or events giving rise
to such claim, together with (to the extent in the Indemnified Party’s possession and permitted by applicable law)
copies of any formal written demand or complaint from any third party claimant and an estimate of the amount, if
reasonably practicable, of the Losses that have been or may be sustained by the Indemnified Party. No failure or
delay on the part of the Indemnified Party in giving the Indemnifying Party a Notice of Claim shall relieve, waive
or otherwise release Seller from any of its obligations under this Section 8 unless (and then only to the extent that)
the Indemnifying Party is adversely and materially prejudiced thereby in terms of the amount of Losses for which
such  Indemnifying  Party  is  obligated  to  indemnify  the  Indemnified  Party,  and  then,  only  to  the  extent  of  such
prejudice.

(ii)

Direct Claims. Any claim by an Indemnified Party on account of Losses which do not result from a
Third-Party Claim (a “Direct Claim”) shall be asserted by the Indemnified Party giving the Indemnifying Party
Notice of Claim with respect thereto. The Indemnifying Party shall have [*] days after its receipt of such Notice of
Claim to respond in writing to such Direct Claim. During such [*]-day period, the Indemnified Party shall allow
the Indemnifying Party and its professional advisors to investigate the matter or circumstance alleged to give rise
to the Direct Claim and whether and to what extent any amount is payable in respect of the Direct Claim, and the
Indemnified  Party  shall  reasonably  cooperate  with  the  Indemnifying  Party’s  investigation  by  giving  such
information and assistance (including the right to examine any documents or records exclusively related to such
Direct Claim) as the Indemnifying Party or any of its professional advisors may reasonably request. If Seller does
not so respond within such [*]-day period, the Indemnifying Party shall be deemed to have rejected such Direct
Claim,  in  which  case  the  Indemnified  Party  shall  be  free  to  pursue  such  remedies  as  may  be  available  to  the
Indemnified Party on the terms and subject to the provisions of this Agreement. To object to all or a portion of any
Direct Claim

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

12

made  in  a  Notice  of  Claim,  the  Indemnifying  Party  must  deliver  a  written  objection  to  the  Buyer  Indemnified
Party within [*] business days after receipt of such Notice of Claim expressing such objection and explaining in
reasonable  detail  and  in  good  faith  the  basis  therefor  (an  “Objection  Notice”).  Following  receipt  by  the
Indemnified Party of the Objection Notice, if any, the Indemnified Party and the Indemnifying Part shall promptly,
and within [*] business days, meet to attempt to resolve the rights of the respective parties that is the subject of the
Objection  Notice.  If  the  Indemnifying  Part  and  the  Indemnified  Party  resolve  the  dispute,  then  as  promptly  as
practicable  (and  in  any  event  within  [*]  Business  Days)  following  the  resolution  of  the  Direct  Claim,  the
Indemnified Party and the Indemnifying Part shall execute and deliver a memorandum setting forth the aggregate
Dollar amount of such Losses payable to the Indemnified Party (the “Stipulated Amount”), and such Stipulated
Amount  shall  be  paid  in  the  manner  set  forth  in  Section  8(e).  In  the  event  that  the  Indemnified  Party  and  the
Indemnifying Part do not execute a memorandum as contemplated above within [*] business days of receipt by
the  Indemnified  Party  of  the  Objection  Notice,  then  the  Buyer  Indemnified  Party  may  commence  an  action  to
resolve  such  dispute  and  enforce  its  rights  with  respect  thereto  in  any  court  available  therefor  (such  action,  a
“Litigated Dispute”). Upon the resolution of a Litigated Dispute, the amount awarded to the Indemnified Party, if
any, in such Litigated Dispute (the “Award Amount”) shall be paid in the manner set forth in Section 8(e).

(iii)

Third-Party  Claims.  Any  claim  by  an  Indemnified  Party  on  account  of  Losses  resulting  from  a
Third-Party Claim shall be asserted by the Indemnified Party giving the Indemnifying Part a Notice of Claim with
respect  thereto.  The  Indemnifying  Part  shall  promptly  assume  control  of  the  defense  and  investigation  of  the
Third-Party Claim, with counsel reasonably acceptable to the Indemnified Party, and the Indemnified Party shall
fully cooperate with the Indemnified Party in connection therewith, in each case at the Indemnified Party’s sole
cost and expense. The Indemnified Party may participate in the defense of such Third-Party Claim, with counsel
of its own choosing and at its own cost and expense. the Indemnifying Party shall not settle any Third-Party Claim
without  the  Indemnified  Party’s  prior  written  consent  (which  consent  shall  not  be  unreasonably  withheld,
conditioned, or delayed). If the Indemnifying Part fails or refuses to assume control of the defense of such Third-
Party  Claim,  the  Indemnified  Party  shall  have  the  right,  but  no  obligation,  to  defend  against  such  Third-Party
Claim, including settling such Third-Party Claim after giving notice to Seller, in each case in such manner and on
such terms as the Indemnified Party may deem appropriate. Neither the Indemnified Party’s failure to perform any
obligation under this Section 8(d), nor any act or omission of the Indemnified Party in the defense or settlement of
any Third-Party  Claim  shall  relieve  Seller  of  its  obligations  under  this  Section  8,  including  with  respect  to  any
Losses, except to the extent that Seller can demonstrate that it has been materially prejudiced as a result thereof.

13

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

(e)

Payment  of  Losses.  With  respect  to  any  Losses  for  which  an  Indemnified  Party  is  entitled  to
indemnification,  any  and  all  payments  in  respect  of  such  Losses  shall  be  satisfied,  in  whole  or  in  part  and  at  such
Indemnified Party’s election, by: (i) in the case of the Seller, setting off such Losses against any Earn-out Payments that
become  payable  to  Seller  in  accordance  with  the  provisions  of  Section  3(e),  as  applicable,  or  (ii)  wire  transfer  of
immediately  available  funds  from  the  Indemnifying  Party  within  ten  (10)  business  days  after  such  amounts  are  finally
determined to be due and payable to such Indemnified Party.

9.

Equitable Remedies. Each party acknowledges that (a) a breach or threatened breach by such party of any of its
obligations under this Agreement would give rise to irreparable harm to the other party for which monetary damages would not
be an adequate remedy; and (b) if a breach or a threatened breach by each party of any such obligations occurs, the other party
will, in addition to any and all other rights and remedies that may be available to such party at law, at equity, or otherwise in
respect of such breach, be entitled to equitable relief, including a restraining order, an injunction, specific performance, and any
other  relief  that  may  be  available  from  a  court  of  competent  jurisdiction,  without  any  requirement  to  (i)  post  a  bond  or  other
security; or (ii) prove actual damages or that monetary damages will not afford an adequate remedy.

10.

Confidentiality.

(a)

Confidentiality and Use. Seller agrees: (i) not to use any information that is of a sensitive, proprietary, or
confidential nature, whether written or oral, concerning the Acquired Rights, other than as strictly necessary to exercise
its rights or perform its obligations under this Agreement; (ii) not to use any such information, directly or indirectly, in
any manner to the detriment of Buyer or to obtain any competitive advantage relative to Buyer; and (iii) to maintain such
information in strict confidence, and not to disclose such information without Buyer’s prior written consent. Both parties
agree to comply with the confidentiality obligations contained in the Licenses. The Mutual Non-Disclosure Agreement
between Buyer and Seller dated [*], is hereby superseded in its entirety by the provisions of this Section 10.

(b)

Compelled  Disclosures.  If  either  party  is  compelled  to  disclose  any  information  with  respect  to  the
financial terms of this Agreement, or Seller is compelled to disclose any information that is of a sensitive, proprietary, or
confidential nature concerning the Acquired Rights, by judicial or administrative process or by other requirements of law,
such party shall: (i) promptly notify the other party in writing; (ii) disclose only that portion of such information that it is
advised  by  counsel  in  writing  is  legally  required  to  be  disclosed;  and  (iii)  use  reasonable  best  efforts  to  obtain  an
appropriate protective order or other reasonable assurance that confidential treatment will be accorded such information.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

14

(c)

Permitted  Disclosures.  Notwithstanding  anything  to  the  contrary  in  this  Section  10,  each  party  shall  be
permitted  to  disclose  any  information  with  respect  to  this  Agreement  (i)  to  the  extent  required  by  applicable  law,
applicable regulations, or applicable rules of any stock exchange or quotation system on which Buyer, Seller, or any of
their respective affiliates lists or trades securities from and after the date hereof, and (ii) to their respective representatives
as necessary in the ordinary course of business (as long as such persons agree to or are bound by contract or professional
obligation to keep the terms of this Agreement confidential and not use any such terms except as necessary in connection
with such ordinary conduct).

11.

Miscellaneous.

(a)

Interpretation.  For  purposes  of  this Agreement,  (i)  the  words  “include,”  “includes,”  and  “including”  are
deemed to be followed by the words “without limitation”; (ii) the word “or” is not exclusive; and (iii) the words “herein,”
“hereof,” “hereby,” “hereto,” and “hereunder” refer to this Agreement as a whole. Unless the context otherwise requires,
references herein: (x) to Sections, Schedules, and Exhibits refer to the Sections of, and Schedules and Exhibits attached
to,  this  Agreement;  (y)  to  an  agreement,  instrument,  or  other  document  means  such  agreement,  instrument,  or  other
document as amended, supplemented, and modified from time to time to the extent permitted by the provisions thereof;
and (z) to a statute means such statute as amended from time to time and includes any successor legislation thereto and
any regulations promulgated thereunder. This Agreement is intended to be construed without regard to any presumption
or rule requiring construction or interpretation against the party drafting an instrument or causing any instrument to be
drafted. The Schedules and Exhibits referred to herein are intended to be construed with, and as an integral part of, this
Agreement to the same extent as if they were set forth verbatim herein.

(b)

Notices. All  notices,  requests,  consents,  claims,  demands,  waivers,  and  other  communications  hereunder
shall  be  in  writing  and  shall  be  deemed  to  have  been  given:  (i)  when  delivered  by  hand  (with  written  confirmation  of
receipt); (ii) when received by the addressee if sent by a nationally recognized overnight courier (receipt requested); (iii)
on  the  date  sent  by  facsimile  or  email  of  a  PDF  document  (with  confirmation  of  transmission)  if  sent  during  normal
business  hours  of  the  recipient;  and  (iv)  on  the  day  after  the  date  mailed,  by  certified  or  registered  mail  (in  each  case,
return receipt requested, postage prepaid). Such communications must be sent to the respective parties at the following
addresses or at such other address for a party as shall be specified in a notice given in accordance with this Section 11(b):

If to Seller:

Address:

Chemin des Aulx, 12, 1228
Plan-les-Outes, Geneva, Switzerland

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

15

If to Buyer:

Facsimile:
Email:
Attention:
Address:
Email:
Attention:

+41 (0)22 884 1556
[*]
Chief Financial Officer

2200 Powell Street, Suite 310
[*]
Chief Financial Officer

(c)

Entire Agreement. This Agreement, together with Licenses and the documents to be delivered hereunder,
and  all  related  exhibits  and  schedules,  constitute  the  sole  and  entire  agreement  of  the  parties  to  this Agreement  with
respect to the subject matter contained herein and therein, and supersede all prior and contemporaneous understandings
and agreements, both written and oral, with respect to such subject matter.

(d)

Severability.  If  any  term  or  provision  of  this  Agreement  is  invalid,  illegal,  or  unenforceable  in  any
jurisdiction, such invalidity, illegality, or unenforceability shall not affect any other term or provision of this Agreement or
invalidate or render unenforceable such term or provision in any other jurisdiction.

(e)

Successors and Assigns. This Agreement shall be binding upon and shall inure to the benefit of the parties

hereto and their respective successors and assigns.

(f)

Governing Law; Venue. All matters arising out of or relating to this Agreement shall be governed by and
construed in accordance with the internal laws of the State of New York without giving effect to any choice or conflict of
law provision or rule. Any legal suit, action, or proceeding arising out of or relating to this Agreement or the transactions
contemplated hereby shall be instituted in the federal courts of the United States of America or the courts of the State of
New  York  in  each  case  located  in  the  Borough  of  Manhattan  and  County  of  New  York,  and  each  party  irrevocably
submits to the exclusive jurisdiction of such courts in any such legal suit, action, or proceeding.

(g)

Amendment and Modification. This Agreement may only be amended, modified, or supplemented by an

agreement in writing signed by each party hereto.

(h) Waiver. No waiver by any party of any of the provisions hereof shall be effective unless explicitly set forth
in writing and signed by the party so waiving. Except as otherwise set forth in this Agreement, no failure to exercise, or
delay in exercising, any right, remedy, power, or privilege arising from this Agreement shall operate or be construed as a
waiver thereof; and any single or partial exercise of any right, remedy, power, or privilege hereunder shall not preclude
any other or further exercise thereof or the exercise of any other right, remedy, power, or privilege.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

16

(i)

Counterparts. This Agreement may be executed in counterparts, each of which shall be deemed an original,
but all of which together shall be deemed to be one and the same agreement. A signed copy of this Agreement delivered
by facsimile, email, or other means of electronic transmission shall be deemed to have the same legal effect as delivery of
an original signed copy of this Agreement.

12.

Expense  Reimbursement.  Seller  agrees  to  reimburse  Buyer  for  up  to  [*]  of  expenses  incurred  by  Buyer  in
connection  with  the  transactions  contemplated  by  this Agreement  (the  “Expense  Reimbursement Amount”).  Such  Expense
Reimbursement Amount shall be set off from the Purchase Price in accordance with Section 3(b).

[SIGNATURE PAGE FOLLOWS]

17

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

IN WITNESS WHEREOF, Seller and Buyer have caused this Agreement to be executed as of the date first written above by their
respective duly authorized officers.

OBSEVA S.A.

/s/ Will Brown

By:
Name: Will Brown
Title: Chief Financial Officer

XOMA (US) LLC

/s/ James R. Neal
By:
Name:
James R. Neal
Title: Chief Executive Officer

18

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not
material and (ii) is the type that the registrant treats as private or confidential.

[*]  =  CERTAIN  CONFIDENTIAL  INFORMATION  CONTAINED  IN  THIS  DOCUMENT,  MARKED  BY  [*],
HAS  BEEN  OMITTED  BECAUSE  IT  IS  BOTH  (I)  NOT  MATERIAL  AND  (II)  IS  THE  TYPE  THAT  THE
REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Exhibit 10.57

LICENSE AGREEMENT
(EBOPIPRANT)

This  License Agreement  (the  “Agreement”)  is  entered  into  as  of  July  26,  2021  (the  “Effective  Date”),  by  and
between  ObsEva  SA,  having  an  address  at  Chemin  des Aulx  12,  1228  Plan-Les-Ouates,  Switzerland  (“ObsEva”)  and
Organon International GmbH, having an address at Weystrasse 20, 6006 Lucerne, Switzerland (“Organon”).  ObsEva and
Organon may be referred to herein individually as a “Party” or collectively as the “Parties.”

RECITALS

WHEREAS, ObsEva Controls (as defined below) certain patents, know-how and other intellectual property rights

relating to Licensed Compound and Licensed Products (as such terms are defined below);

WHEREAS,  Organon  possesses  resources  and  expertise  in  the  development  and  commercialization  of

pharmaceutical products;

WHEREAS, Organon desires to obtain an exclusive license and sublicense to Develop, Manufacture, Commercialize
and  otherwise  Exploit  the  Licensed  Compounds  and  Licensed  Products  in  the  Field  in  the Territory  (as  such  terms  are
defined below) and ObsEva desires to grant to Organon such license and sublicense.

AGREEMENT

NOW, THEREFORE, in consideration of the foregoing premises and the mutual covenants contained herein, and for
other  good  and  valuable  consideration,  the  receipt  and  sufficiency  of  which  are  hereby  acknowledged,  Organon  and
ObsEva hereby agree as follows:

1.

DEFINITIONS

1.1

“Acceptance”  means,  with  respect  to  a  Drug Approval Application,  receipt  of  written  notice  from  the
applicable Regulatory Authority indicating that such Drug Approval Application has been accepted for filing and further
Regulatory Authority review.

1.2

“Accounting  Standards”  means  United  States  Generally  Accepted  Accounting  Principles  (GAAP)  or
International Financial Reporting Standards (IFRS), as consistently applied by Organon or its Affiliates or Sublicensees,
as applicable.

1.3

“Action” has the meaning set forth in Section 9.5(e).

1.4

“Affiliate”  means  a  Person  or  entity  that  controls,  is  controlled  by  or  is  under  common  control  with  a
Party, but only for so long as such control exists. For the purposes of this Section 1.4, the word “control” (including, with
correlative  meaning,  the  terms  “controlled  by”  or  “under  the  common  control  with”)  means  the  actual  power,  either
directly or indirectly through one or more intermediaries, to

direct the management and policies of such Person or entity, whether by the ownership of more than fifty percent (50%) of
the voting stock of such entity, or by contract or otherwise. The Parties acknowledge that in the case of certain entities
organized under the laws of certain countries outside of the United States, the maximum percentage ownership permitted
by law for a foreign investor may be less than fifty percent (50%), and that in such case such lower percentage shall be
substituted  in  the  preceding  sentence,  provided  that  such  foreign  investor  has  the  power  to  direct  the  management  or
policies of such entity.

1.5

“Alliance Manager” has the meaning set forth in Section 3.5.

1.6

“Anti-Corruption  Laws”  means  any  Applicable  Laws  regarding  corruption,  bribery,  ethical  business
conduct, money laundering, political contributions, gifts and gratuities, or lawful expenses to Public Officials or private
persons,  agency  relationships,  commissions,  lobbying,  books  and  records,  and  financial  controls,  including  the  United
States Foreign Corrupt Practices Act, 15 U.S.C. §78-dd-1, et seq., the Bribery Act 2010, the Criminal Law and Anti-Unfair
Competition  Law  of  the  People’s  Republic  of  China,  and  laws  implementing  the  Convention  on  Combating  Bribery  of
Foreign Public Officials in International Business Transactions; each as may be amended or supplemented from time to
time

1.7

“Applicable Laws” means applicable laws, statutes, ordinances, rules, regulations, guidances and orders

of any Governmental Authority (including court orders) having jurisdiction over or related to the subject item.

1.8

“Bankruptcy Event” means: (a) voluntary or involuntary proceedings by or against a Party instituted in
bankruptcy under any insolvency law, which proceedings, if involuntary, shall not have been dismissed within sixty (60)
days after the date of filing; (b) a receiver or custodian is appointed for a Party; (c) proceedings are instituted by or against
a  Party  for  corporate  reorganization,  dissolution,  liquidation  or  winding-up  of  such  Party,  which  proceedings,  if
involuntary,  shall  not  have  been  dismissed  within  sixty  (60)  days  after  the  date  of  filing;  or  (d)  substantially  all  of  the
assets of a Party are seized or attached and not released within sixty (60) days thereafter.

1.9

“Bayh-Dole Act” means the Patent and Trademark Law Amendments Act of 1980 codified at 35 U.S.C.

§§ 200-212, as amended, as well as any regulations promulgated pursuant thereto, including in 37 C.F.R. Part 401.

1.10

“Business Day” means a day other than a Saturday or Sunday on which banking institutions in Lucerne,

Switzerland and New York, New York are open for business.

1.11

“Calendar  Quarter”  means  each  three  (3)  month  period  commencing  January  1,  April  1,  July  1  or
October 1, provided however that (a) the first Calendar Quarter of the Term shall extend from the Effective Date to the
end of the first full Calendar Quarter thereafter, and (b) the last Calendar Quarter of the Term shall end upon the expiration
of this Agreement.

1.12

“Calendar Year” means the period beginning on the 1st of January and ending on the 31st of December
of the same year, provided however that (a) the first Calendar Year of the Term shall commence on the Effective Date and
end on December 31, 2021 and (b) the last Calendar Year of the Term shall commence on January 1 of the Calendar Year
in which this Agreement terminates or expires and ends on the date of termination or expiration of this Agreement.

1.13

“Change of Control,” has the meaning set forth in Section 14.1(b).

1.14

“China” means the People’s Republic of China, which includes mainland China, [*].

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

1.15

“Claim” has the meaning set forth in Section 12.1.

1.16

“Clinical Trial” means a clinical trial of a pharmaceutical product in humans which has been approved
by  a  Regulatory  Authority  to  be  commenced  and  is  designed  to  (a)  establish  that  such  pharmaceutical  product  is
reasonably  safe  for  continued  testing;  (b)  investigate  the  safety  and  efficacy  of  such  pharmaceutical  product  for  its
intended use, and to define warnings, precautions and adverse reactions that may be associated with such pharmaceutical
product 
the  safety/tolerability,  pharmacokinetics  and
pharmacodynamics of such pharmaceutical product; (d) support Regulatory Approval of such pharmaceutical product or
label  expansion  of  such  pharmaceutical  product;  or  (e)  obtain,  support  or  maintain  Regulatory Approval,  including  any
post-marketing commitments.

to  be  prescribed;  (c) 

the  dosage  range 

investigate 

in 

1.17

“CMOs” means Third Party contract manufacturers.

1.18

“Combination Product” means a product containing a Licensed Compound together with one or more

active ingredients, or with one or more products, devices, equipment or components (each, an “Other Product”).

1.19

“Commercialization”  or  “Commercialize”  means  any  and  all  activities  undertaken  prior  to  and  after
receipt  of  Regulatory  Approval  for  a  particular  Licensed  Product  and  that  relate  to  the  pricing  and  reimbursement
(including  obtaining  and  maintaining  Reimbursement Approval),  marketing,  promoting,  distributing,  importing  for  sale,
offering for sale, and selling of the Licensed Product, including Phase 4 Trials that are voluntarily undertaken and are not
mandated by a Regulatory Authority as a condition of receiving or maintaining Regulatory Approval.

1.20

“Commercially  Reasonable  Efforts”  means,  (a)  with  respect  to  the  efforts  to  be  expended  by  a  Party
with  respect  to  any  objective,  such  reasonable,  diligent,  and  good  faith  efforts  as  [*]  Party  would  normally  use  to
accomplish  a  similar  objective  under  similar  circumstances,  and  (b)  with  respect  to  any  obligation  relating  to
Development or Commercialization of a Licensed Product by Organon, the application by [*].

1.21

“Confidential  Information”  of  a  Party  means  (a)  the  terms  of  this Agreement  and  (b)  with  respect  to
each Party, any information relating to the business, operations and products of a Party or any of its Affiliates, including
any  technical  information,  Know-How,  trade  secrets,  or  inventions  (whether  patentable  or  not),  not  known  or  generally
available to the public, that such Party discloses to the other Party under this Agreement (including information disclosed
prior to the Effective Date pursuant to that certain letter agreement between the Parties or their respective Affiliates dated
March  8,  2021),  or  otherwise  becomes  known  to  the  other  Party  by  virtue  of  this  Agreement.  Notwithstanding  the
foregoing,  all  Regulatory  Documentation  owned  by  Organon  pursuant  to  Section  4.6(b)  shall  be  deemed  to  be  the
Confidential  Information  of  Organon,  and  Organon  shall  be  deemed  to  be  the  disclosing  Party  and  ObsEva  shall  be
deemed to be the receiving Party with respect thereto.

1.22

“Consent” has the meaning set forth in Section 11.1(g).

1.23

“Control” (including any variations such as “Controlled” and “Controlling”) means, with respect to a
Party and (a) Patent Rights, (b) Know-How or (c) biological, chemical or physical material, that such Party or one of its
Affiliates owns or has a license or sublicense to such right, item, or material (or in the case of material, has the right to
physical possession of such material, and, in each case of the foregoing, other than by operation of the license and other
grants in Section 2.1) and the ability to grant a

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

license or sublicense to, or assign its right, title and interest in and to, such right, item or material as provided for in this
Agreement, without breaching the terms of any then-existing agreement with a Third Party.

1.24

“Controlling Party” has the meaning set forth in Section 9.6(c).

1.25

“Cover,”  “Covering”  or  “Covered”  means,  with  respect  to  a  Licensed  Product  and  a  country,  that  the
making, using, selling, or offering for sale of such Licensed Product would, but for a license granted in this Agreement
under the Licensed Patents, infringe a Valid Claim of the Licensed Patents in the country in which the activity occurs.

1.26

“Development”  or  “Develop”  means,  with  respect  to  Licensed  Compound  or  a  Licensed  Product,  all
research  and  development  activities,  including  the  performance  of  pre-clinical  and  clinical  development  (including
toxicology, pharmacokinetic and pharmacological studies, statistical analyses, protocol design, test method development
and  stability  testing,  process  development,  formulation  development,  and  quality  control  development),  Clinical  Trials,
Phase 4 Trials that are mandated by Regulatory Authority as a condition of receiving or maintaining Regulatory Approval
(but no other Phase 4 Trials or Clinical Trials conducted after receipt of Regulatory Approval) and all regulatory affairs
related  to  any  of  the  foregoing,  including  regulatory  activities  that  are  required  to  obtain  Regulatory  Approval  of  the
Licensed Product.

1.27

“Development Plan” has the meaning set forth in Section 4.2(a).

1.28

“Dispute” has the meaning set forth in Section 14.3.

1.29

“Dollar” or “$” means U.S. dollars.

1.30

“Drug Approval Application”  means  (a)  Marketing Authorization Application  (“MAA”)  submitted  to
EMA  for  the  purpose  of  obtaining  European  Commission  approval  for  the  marketing  of  the  Licensed  Product  for  the
countries located within the European Union, (b) a New Drug Application (“NDA”) or a Biologics License Application
filed  pursuant  to  the  requirements  of  the  FDA,  as  more  fully  defined  in  the  FFDCA,  or  (c)  any  equivalent  registration
application filed to the applicable Regulatory Authority for approval to market the Licensed Product in any country other
than the European Union or the United States, in each case, including all additions, deletions or supplements thereto.

1.31

“EMA” means the European Medicines Agency, or any successor thereto.

1.32

“Enforcing Party” has the meaning set forth in Section 9.5(c).

1.33

“European Union” or “E.U.” means the economic, scientific, and political organization of member states
known as the European Union, as its membership may be altered from time to time, and any successor thereto; provided
that for the purposes of this Agreement, the European Union shall be deemed to include the United Kingdom.

1.34

“Executive Officer” means, with respect to ObsEva, the Chief Executive Officer of ObsEva or his or her
designee and, with respect to Organon, the Executive Vice President, Head of Research and Development of Organon or
his or her designee.

1.35

“Existing INDs” has the meaning set forth in Section 4.6(b).

1.36

“Existing Know-How” means the Licensed Know-How existing as of the Effective Date.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

1.37

“Existing Patents” has the meaning set forth in Section 11.1(d).

1.38

“Exploit”  means  to  Develop,  make,  have  made  and  otherwise  Manufacture,  import,  export,  use,  have
used, register, sell, offer for sale, distribute, promote, market, have sold and otherwise Commercialize, modify, enhance,
improve,  or  keep  (whether  for  disposal  or  otherwise),  transport  or  otherwise  dispose  of.  “Exploitation”  has  correlative
meaning.

1.39

“FDA” means the United States Food and Drug Administration, or any successor thereto.

1.40

“FFDCA” means, as applicable, the United States Federal Food, Drug and Cosmetic Act, 21 U.S.C. §§

301 et seq., and the Public Health Service Act, 42 U.S.C. §§ 262 et seq., as amended from time to time.

1.41

“Field” means all therapeutic, prophylactic, palliative and diagnostic uses in humans and animals.

1.42

“First Commercial Sale” means the first sale for monetary value to a Third Party for use or consumption
of the Licensed Product by Organon or its Affiliate(s) or Sublicensee(s). For the avoidance of doubt, a First Commercial
Sale  may  only  occur  after  the  Licensed  Product  has  received  Regulatory Approval  for  the  country  in  which  the  First
Commercial  Sale  occurs,  and  First  Commercial  Sale  excludes  any  sale  or  other  distribution  of  a  Licensed  Product  for
Clinical  Trial  or  other  Development  purposes  or  for  early  access  programs  (such  as  pursuant  to  treatment  INDs  or
protocols, named patient programs or compassionate use programs) or any similar use, in each case to provide patients
with such Licensed Product prior to Regulatory Approval.

1.43

“Force Majeure” has the meaning set forth in Section 14.13.

1.44

“Generic Product” means, with respect to a Licensed Product and a country in the Territory, any product
that (a) is approved for use in an indication that is the same as an indication for such Licensed Product in such country by
a  Regulatory  Authority  in  reliance,  in  whole  or  in  part,  on  the  Regulatory  Approval  (or  on  safety  or  efficacy  data
submitted  in  support  of  the  Regulatory Approval)  of  such  Licensed  Product  in  such  country,  (b)  contains  the  Licensed
Compound as an active ingredient, and (c) is sold in such country by a Third Party that is not a Sublicensee and did not
purchase such product or Licensed Compound from Organon or its Affiliates or Sublicensees.

1.45

“Governmental Authority” means any: (a) nation, principality, state, commonwealth, province, territory,
county,  municipality,  district  or  other  jurisdiction  of  any  nature;  (b)  federal,  state,  local,  municipal,  foreign  or  other
government;  (c)  governmental  or  quasi-governmental  authority  of  any  nature  (including  any  governmental  division,
subdivision,  department,  agency,  bureau,  branch,  office,  commission,  council,  board, 
instrumentality,  officer,
representative,  organization,  unit,  body  or  entity  and  any  court  or  other  tribunal);  (d)  multinational  or  supranational
organization  or  body;  or  (e)  individual,  entity,  or  body,  including  any  court,  exercising,  or  entitled  to  exercise,  any
executive, legislative, judicial, administrative, regulatory, police, military or taxing authority or power of any nature.

1.46

“GxP”  means,  collectively,  all  relevant  good  practice  quality  guidelines  and  regulations,  encompassing
such internationally recognized standards as Good Manufacturing Practice (GMP), Good Clinical Practice (GCP), Good
Laboratory Practice (GLP), Good Distribution Practice (GDP), and Good Review Practice (GRP), in each case (a) as such
terms are defined from time to time by the FDA and other applicable Governmental Authorities pursuant to its regulations,
guidelines or otherwise and (b) applicable

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

from time to time to the Development or Manufacturing of a Licensed Compound or Licensed Product or any intermediate
thereof pursuant to Applicable Law.

1.47

“IND” means an investigational new drug application filed with the FDA or the equivalent application or
filing filed with any equivalent agency or Governmental Authority outside the United States (including any supra-national
entity such as in the European Union) for approval to commence Clinical Trials in such jurisdiction such as a clinical trial
application or a clinical trial notification, and including all regulations at Title 21 of the Code of Federal Regulations Part
312 et seq. and equivalent foreign regulations.

1.48

“IND Acceptance”  means,  with  respect  to  a  particular  Licensed  Product,  that  the  IND  for  the  Clinical
Trial for such Licensed Product filed hereunder by Organon with the FDA was accepted by the FDA, as evidenced by no
objection  by  the  FDA  within  thirty  (30)  days  after  the  date  of  the  IND  submission  (or  any  amended  submission  if  the
initial IND-filing was not accepted and such amendment restarted the applicable 30-day period).

1.49

“Indemnified Party” has the meaning set forth in Section 12.3.

1.50

“Indemnifying Party” has the meaning set forth in Section 12.3.

1.51

“Infringing Licensed Product” has the meaning set forth in Section 7.4(c)(v).

1.52

“Initiation” means, with respect to a Clinical Trial, the first dosing of the first (1st) human subject in such

Clinical Trial.

1.53

“Inventions”  means  all  inventions,  whether  or  not  patentable,  discovered,  made,  developed,  generated,
conceived or reduced to practice in the course of conducting activities under this Agreement or through the exercise of a
license granted in this Agreement, together with all intellectual property rights therein.

1.54

“Joint Advisory Committee” or “JAC” has the meaning set forth in Section 3.1.

1.55

“Know-How” means all present and future scientific, technical, or commercial information, results and
data of any type whatsoever that is not in the public domain or otherwise publicly known, including databases, inventions,
improvements,  practices,  research,  methods,  discoveries,  developments,  technology,  protocols,  specifications,  formulae,
software,  algorithms,  knowledge,  know-how,  trade  secrets,  processes,  assays,  skills,  experience,  chemical  or  biological
materials,  reagents,  formulations,  expertise,  techniques,  results  of  experimentation  and  testing,  data  (including
pharmacological, biological, chemical, biochemical, toxicological, pre-clinical and clinical data and analytical and quality
control data, stability data and other study data), CMC information, manufacturing process and development, and results
in  all  cases,  whether  or  not  patentable,  in  written,  electronic,  tangible,  intangible  or  any  other  form  now  known  or
hereafter developed, but excluding any Patent Rights and Trademarks.

1.56

“Knowledge”  means,  with  respect  to  a  particular  fact  or  matter,  the  knowledge,  following  reasonable
inquiry, of any [*] of ObsEva who has responsibility for such fact or matter; provided that such reasonable inquiry shall
not require ObsEva or [*] to perform any freedom to operate analysis with respect to any Patents.

1.57

“Legal Action” has the meaning set forth in Section 9.5(b).

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

1.58

“Licensed Compound(s)” means the compound known as Ebopiprant [*].

1.59

“Licensed  Know-How”  means  Know-How  Controlled  by  ObsEva  or  any  of  its  Affiliates  as  of  the
Effective Date or at any time during the Term that is necessary or reasonably useful for the Development, Manufacture,
Commercialization or other Exploitation of a Licensed Compound or Licensed Product.

1.60

“Licensed Patents” means Patent Rights Controlled by ObsEva or any of its Affiliates as of the Effective
Date or at any time during the Term that claim [*].  The Licensed Patents existing as of the Effective Date are set forth on
Schedule 1.60 and include the Merck Serono Patents.

1.61

“Licensed Product” means any product that contains, comprises or incorporates a Licensed Compound,
whether alone or in combination with other active ingredients, in all current and future formulations, and in any dosage
form, presentation or package configuration, and for any mode of administration.

1.62

“Licensed Product CMO” has the meaning set forth in Section 5.3(a).

1.63

“Licensed Technology” means, collectively, the Licensed Know-How and the Licensed Patents.

1.64

[*]

1.65

“Losses” has the meaning set forth in Section 12.1.

1.66

“MAA” has the meaning set forth in the definition of “Drug Approval Application.”

1.67

“Major Market” means each of [*].

1.68

“Manufacture” and “Manufacturing” means all activities related to the synthesis, making, production,
processing, purifying, formulating, filling, finishing, packaging, labelling, shipping, and holding of a Licensed Compound
or  Licensed  Product  or  any  intermediate  thereof,  including  process  development,  process  qualification  and  validation,
scale-up,  pre-clinical,  clinical  and  commercial  production  and  analytic  development,  product  characterization,  supply
chain,  stability  testing,  quality  assurance  testing  and  release,  investigations,  risk  assessments,  corrective  actions,  and
quality control.

1.69

“Manufacturing Process” has the meaning set forth in Section 4.4(c).

1.70

“Manufacturing Technology Transfer” has the meaning set forth in Section 4.4(c).

1.71

“Manufacturing  Transfer  Plan”  means  the  plan  covering  the  Manufacturing  Technology  Transfer  to
Organon which the Parties shall agree upon as promptly as practicable after the Effective Date, but in no event longer than
[*] days after the Effective Date.

1.72

“Merck Serono” has the meaning set forth in the definition of “Merck Serono Agreement.”

1.73

“Merck  Serono Agreement”  means  the  License Agreement  dated  June  10,  2015  by  and  between Ares
Trading S.A. (“Merck Serono”) and ObsEva, as amended by the First Amendment to the License Agreement dated July 8,
2016.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

1.74

“Merck Serono Confidential Information” has the meaning set forth in Section 10.1.

1.75

“Merck Serono Patent Infringement” has the meaning set forth in Section 9.5(a).

1.76

“Merck Serono Patents” means the Patent Rights listed on Schedule 1.60.

1.77

“NDA” has the meaning set forth in the definition of “Drug Approval Application.”

1.78

“Net  Sales”  means  the  amounts  invoiced  by  Organon  or  its  Affiliates  or  Sublicensees  for  sales  of
Licensed Products to a Third Party (other than a Sublicensee) (whether a sales agent, a service provider, a hospital, an end
user, a distributor, a pharmacy or otherwise), less the following:

(a)

(b)

(c)

(d)

[*];

[*];

[*];

[*].

[*]. For the avoidance of doubt, Net Sales may only occur after the Licensed Product has received Regulatory Approval
for the country in which the Net Sales occur.

(e)

[*].

1.79

“NMPA” means the National Medical Licensed Products Administration in China, and local counterparts

thereto, or any successor entity thereto.

1.80

“ObsEva Indemnitee” has the meaning set forth in Section 12.1.

1.81

“ObsEva Patent Infringement” has the meaning set forth in Section 9.5(a).

1.82

“ObsEva Patents” means all Licensed Patents in the Territory other than the Merck Serono Patents.

1.83

“Organon  Improvement  Know-How”  means  any  and  all  Know-How  (including  any  improvement,
Invention  or  discovery)  that  is  Controlled  by  Organon  or  its Affiliates  that  is  discovered,  made,  developed,  generated,
conceived or reduced to practice by one or more employees of Organon or its Affiliates or Sublicensees (or a Third Party
acting  on  its  or  their  behalf)  in  the  course  of  conducting  activities  under  this  Agreement  and  that  relates  solely  to  a
Licensed  Compound  or  Licensed  Product  [*],  including  new  or  improved  methods  of  manufacture,  formulas,  uses,
indications, delivery methods or dosage forms thereof.

1.84

“Organon  Improvement  Patents”  means  any  and  all  Patent  Rights  Controlled  by  Organon  or  its
Affiliates that claim (a) any Organon Improvement Know-How, (b) a Licensed Compound, or (c) any Licensed Product
(or,  with  respect  to  Patent  applications,  would  claim  any  of  the  foregoing  if  such  Patent  applications  were  to  issue  as
Patents).

1.85

“Organon  Improvement Technology”  means,  collectively,  the  Organon  Improvement  Know-How  and

the Organon Improvement Patents.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

1.86

“Organon Indemnitee” has the meaning set forth in Section 12.1(c).

1.87

“Organon Know-How” means any Know-How that is (a) Controlled by Organon or any of its Affiliates
as of the effective date of the applicable termination of this Agreement, (b) actually used by Organon or its Affiliates or
Sublicensees in the Exploitation of or otherwise with respect to or incorporated in a Licensed Compound or any Licensed
Product as it exists as of such effective date of termination, and (c) necessary to Develop, have Developed, Manufacture,
have  Manufactured,  Commercialize  or  otherwise  Exploit  any  Licensed  Product  as  it  exists  as  of  such  effective  date  of
termination, but in each case (i) solely with respect to any such Licensed Product that is the subject of Development or
Commercialization  in  the  Territory  as  of  the  effective  date  of  such  termination,  and  (ii),  if  such  Licensed  Product  is  a
Combination  Product  [*],  excluding  any  such  Know-How  related  to  any  such  Other  Product,  including  any  active
ingredient other than the Licensed Compound, in such Combination Product.

1.88

“Organon Patents” means any Patents that (a) are Controlled by Organon or any of its Affiliates as of the
effective date of the applicable termination of this Agreement, and (b) either (i) include one (1) or more claim(s) that claim
or cover Organon Know-How or (ii) are actually used by Organon or its Affiliates or Sublicensees in the Exploitation of
any Licensed Product as it exists as of such effective date of termination and are necessary to Develop, have Developed,
Manufacture,  have  Manufactured,  Commercialize  or  otherwise  Exploit  any  Licensed  Product  as  it  exists  as  of  such
effective date of termination, but in each case (A) solely with respect to any such Licensed Product that is the subject of
Development or Commercialization in the Territory as of the effective date of such termination, and (B), if such Licensed
Product is a Combination Product [*], excluding any such Patents that cover any such Other Product, including any active
ingredient other than the Licensed Compound, in such Combination Product, and in all cases, in no event shall Organon
Patents  include  any  Patent  Controlled  by  Organon  or  any  of  its Affiliates  that  claims  or  covers  the  composition  of  any
Other Product in a Combination Product.

1.89

“Organon Technology” means, collectively, the Organon Know-How and the Organon Patents.

1.90

“Other Product” has the meaning set forth in the definition of “Combination Product.”

1.91

“Patent”  or  “Patent  Right(s)”  means:  (a)  an  issued  or  granted  patent,  including  any  extension,
supplementary protection certificate, registration, confirmation, reissue, reexamination, extension or renewal thereof; (b) a
pending  patent  application,  including  any  continuation,  divisional,  continuation-in-part,  substitute  or  provisional
application thereof; and (c) all counterparts or foreign equivalents of any of the foregoing issued by or filed in any country
or other jurisdiction.

1.92

“Patent Challenge” has the meaning set forth in Section 13.3(a).

1.93

“Person”  means  any  natural  person,  corporation,  firm,  business  trust,  joint  venture,  association,
organization,  company,  partnership  or  other  business  entity,  or  any  Governmental Authority,  government  or  agency  or
political subdivision thereof.

1.94

“Phase 3 Trial” means a Clinical Trial of a Licensed Product which Clinical Trial the FDA permits to be
conducted under an open IND, and which is designed to: (a) establish that the Licensed Product is safe and efficacious for
its intended use; (b) define warnings, precautions, and adverse reactions that are associated with the Licensed Product in
the dosage range to be prescribed; and (c) enable the submission of an NDA to the FDA for the Licensed Product, and that
satisfies the requirements of U.S. federal regulation 21 C.F.R. § 312.21(c) and its successor regulation.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

1.95

“Phase 4 Trial” means a study of the Licensed Product conducted after Regulatory Approval: (a) due to a
request or requirement of a Regulatory Authority as a condition of receiving or maintaining such Regulatory Approval; or
(b) voluntarily by a Party to enhance marketing or scientific knowledge of the Licensed Product (including, for clarity, any
post-marketing  surveillance  studies  and  registries  sponsored  by  a  Party,  epidemiological  models,  or  pharmacoeconomic
studies).

1.96

“Privacy Laws” means any Applicable Laws regarding the collection, use, transfer, storage, protection,
deletion, processing (both by computer and manually), combination, or other use of Clinical Trial subject or patient data
(sometimes referred to as protected health information) or other personal data.

1.97

“Product Trademarks” has the meaning set forth in Section 9.8.

1.98

“Prosecution”  means,  with  respect  to  any  Patent,  the  preparation,  filing,  prosecution  and  maintenance
(including  any  interferences,  reissue  proceedings,  reexaminations,  inter  partes  review,  oppositions,  invalidation
proceedings and defense of validity or enforceability challenges) of such Patent.

1.99

“Public Official” means (a) any elected or appointed officer, employee or representative of any regional,
federal, state, provincial, county or municipal Governmental Authority, agency or other division; (b) any officer, employee
or representative of any commercial enterprise that is owned or controlled by a Governmental Authority, including any
state-owned or controlled veterinary, laboratory research or medical facility; (c) any political party officer, candidate for
public office, or political party employees or individuals acting for or on behalf of a political party or candidate for public
office; (d) any officer, employee or representative of any public international organization, such as the African Union, the
International Monetary Fund, the United Nations or the World Bank; and (e) any person acting in an official capacity for
any  Government  Authority,  enterprise  or  organization  identified  above.  For  clarity,  healthcare  providers  employed  by
government-owned or -controlled hospitals, or a person serving on a healthcare committee that advises a Governmental
Authority, will be considered Public Officials.

1.100

“Reduction Circumstances” has the meaning set forth in Section 7.4(c)(iii).

1.101

“Regulatory Approval”  means  approval  of  a  Drug Approval Application  by  the  applicable  Regulatory
Authority for marketing and sale of a Licensed Product in the Territory. For clarity, Regulatory Approval does not include
Reimbursement Approval.

1.102

“Regulatory Authority” means (a) the FDA, (b) the EMA or the European Commission, (c) the NMPA,
or (d) any regulatory body with similar regulatory authority over pharmaceutical or biotechnology products in any other
jurisdiction anywhere in the world.

1.103

“Regulatory  Documentation”  means  (a)  all  Regulatory  Filings,  (b)  correspondence  and  reports
submitted  to  or  received  from  Regulatory  Authorities  (including  minutes  and  official  contact  reports  relating  to  any
communications  with  any  Regulatory  Authority)  and  all  supporting  documents  with  respect  thereto,  including  all
regulatory  drug  lists,  advertising  and  promotion  documents,  adverse  event  files,  and  complaint  files,  and  (c)  data
contained  or  relied  upon  in  any  of  the  foregoing,  in  each  case  ((a),  (b),  and  (c))  relating  to  a  Licensed  Compound  or
Licensed Product.

1.104

“Regulatory Exclusivity” means any exclusive marketing rights or data exclusivity rights conferred by
any  Regulatory Authority  with  respect  to  a  Licensed  Product,  other  than  Patents,  including  rights  conferred  in  the  U.S.
under the Hatch-Waxman Act or the FDA Modernization Act of 1997 (including

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

pediatric  exclusivity),  or  rights  similar  thereto  outside  the  U.S.,  such  as  Directive  2001/83/EC  (as  amended)  in  the
European Union.

1.105

“Regulatory  Filing”  means  all  applications,  filings,  submissions,  approvals,  licenses,  registrations,
permits,  notifications,  and  authorizations  (or  waivers)  with  respect  to  the  testing,  Development,  Manufacture,  or
Commercialization  of  any  Licensed  Product  made  to  or  received  from  any  Regulatory  Authority  in  a  given  country,
including INDs, Drug Approval Applications, Regulatory Approvals and Reimbursement Approvals.

1.106

“Reimbursement Approval”  means  any  governmental  approval,  agreement,  determination,  or  decision
establishing  prices  for  a  Licensed  Product  that  can  be  charged  or  reimbursed  in  regulatory  jurisdictions  where  the
applicable Regulatory Authorities approve or determine the price or reimbursement of pharmaceutical products.

1.107

[*]

1.108

“Reversion Licenses” has the meaning set forth in Section 13.6(f).

1.109

“Reversion Royalty Dispute” has the meaning set forth in Section 13.6(f).

1.110

“Royalty Term” has the meaning set forth in Section 7.4(b).

1.111

“Rules” has the meaning set forth in Section 14.3.

1.112

“Safety  Concern”  means,  with  respect  to  a  Licensed  Product,  (a)  any  safety  concern  required  to  be
reported  under  21  C.F.R.  §  312.32(c)(1)(iii)  or  the  equivalent  in  any  non-U.S.  jurisdiction,  or  (b)  a  material  toxicity  or
material drug safety issue or a Serious Adverse Event reasonably related to a Licensed Product.

1.113

“Safety Reason” means that there is an unacceptable risk for harm in humans based upon (a) preclinical
safety data, including data from animal toxicology studies, (b) the observation of serious adverse effects in humans after
the Licensed Product has been administered to humans, such as during a Clinical Trial of a Licensed Product, or (c) other
Safety Concerns.

1.114

“Step-In Prosecuted Patent” has the meaning set forth in Section 7.4(c)(iv).

1.115

“Sublicensee”  means  a  Third  Party  to  whom  Organon  grants  a  sublicense  under  any  of  the  Licensed
Technology  licensed  under  Section  2.1,  as  permitted  in  accordance  with  Section  2.2,  excluding  contract  research
organizations, CMOs and similar service providers, and wholesalers, distributors and similar physical distributors that do
not promote the sale of the Licensed Product.  

1.116

“Supply Agreements” has the meaning set forth in Section 5.3(a).

1.117

“Supply Period” has the meaning set forth in Section 5.3(a).

1.118

“Term” has the meaning set forth in Section 13.1(a).

1.119

“Territory” means all of the countries in the world, and their territories and possessions.

1.120

“Third Party” shall mean any Person that is not a Party or an Affiliate of a Party.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

1.121

“Third Party Action” has the meaning set forth in Section 9.6(a).

1.122

“Third Party License” has the meaning set forth in Section 7.4(c)(v).  

1.123

“Third Party License Agreement” has the meaning set forth in Section 9.7.

1.124

“Trademarks” means any word, name, symbol, color, designation or device or any combination thereof
that functions as a source identifier, including any trademark, trade dress, brand mark, service mark, trade name, brand
name, logo, business symbol or domain names, whether or not registered.

1.125

“United States” or “U.S.” means the United States of America, including its territories and possessions.

1.126

“Upfront Payment” has the meaning set forth in Section 7.1.

1.127

“Valid  Claim”  means  any  claim  in  any  [*]  unexpired  and  issued  Licensed  Patent  that  has  not  been
disclaimed,  revoked  or  held  invalid  by  a  final  non-appealable  decision  of  a  court  or  other  governmental  agency  of
competent jurisdiction [*].

2.

LICENSE GRANTS

2.1

License Grant to Organon.  Subject to the terms and conditions of this Agreement, ObsEva (on behalf
of itself and its Affiliates) hereby grants to Organon and its Affiliates an exclusive (even as to ObsEva and its Affiliates,
subject  to  Section  2.5),  sublicensable  (solely  in  accordance  with  Section  2.2),  non-transferable  (except  as  provided  in
Section  14.9)  license  and  sublicense  under  the  Licensed  Technology  to  Develop,  Manufacture,  have  Manufactured,
Commercialize and otherwise Exploit Licensed Compound and Licensed Products in the Field and in the Territory.

2.2

Sublicenses.  Organon shall have the right to grant sublicenses under the license granted in Section 2.1,
subject to ObsEva being duly informed in writing by Organon in advance of the execution of any sublicense agreement by
Organon  with  each  Sublicensee;  provided,  however,  that,  [*].    Each  sublicense  granted  by  Organon  pursuant  to  this
Section  2.2  shall  be  consistent  with  the  terms  and  conditions  of  this  Agreement  and  shall  include  obligations  of
confidentiality and non-use applicable to the Confidential Information of ObsEva that are substantially similar to those set
forth  in  Article  10,  and  include  the  applicable  reporting  and  record  keeping  requirements  set  forth  in  Article  8.    The
granting by Organon of a sublicense to a Sublicensee shall not relieve Organon of its obligations hereunder and Organon
shall remain directly liable to ObsEva with respect to the performance of its obligations under, and Organon’s compliance
with  all  provisions  of,  this  Agreement,  including  ensuring  that  the  performance  by  any  of  its  Sublicensees  of  such
obligations is in accordance with the applicable terms of this Agreement. Organon shall promptly provide ObsEva with a
copy  of  each  fully  executed  sublicense  agreement  executed  by  Organon  with  each  Sublicensee,  provided  that  the
commercial and financial terms of such sublicense may be redacted, and ObsEva hereby undertakes to treat such redacted
sublicense  agreement  as  Confidential  Information  of  Organon.    For  the  avoidance  of  doubt,  (i)  Organon  may  grant
sublicenses  on  a  country-by-country  basis  or  worldwide  and  (ii)  contract  research  organizations,  CMOs  and  similar
service  providers,  and  wholesalers,  distributors  and  similar  physical  distributors  that  do  not  promote  the  sale  of  the
Licensed  Product  shall  not  need  a  sublicense  and  shall  be  handled  in  accordance  with  the  subcontracting  provision  of
Section 5.6.

2.3

Merck Serono Agreement.  

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(a)

The Parties acknowledge and agree that the sublicense granted under this Article 2 under certain
Licensed  Technology  that  is  not  owned  by  ObsEva  or  its  Affiliates  are  subject  to  the  limitations,  obligations,  and
reservations imposed on ObsEva or its Affiliates in the Merck Serono Agreement.  [*]. Organon acknowledges that it has
received a copy of the Merck Serono Agreement.

(b)

ObsEva  represents  and  warrants  to  Organon,  as  of  the  Effective  Date,  that  (i)  Schedule  2.3
contains a complete and accurate list of all requirements applicable to Organon of the Merck Serono Agreement, and (ii) a
copy of the Merck Serono Agreement and all associated amendments related to the performance of obligations thereunder
was included in the electronic data room that has been made available to Organon.

(c)

With respect to the Merck Serono Agreement, ObsEva represents and warrants to Organon, as of
the Effective Date, that: (i) it is in full force and effect; (ii) neither ObsEva nor any of its Affiliates is in material breach
thereof; (iii) neither ObsEva nor any of its Affiliates has received any notice from Merck Serono of any material breach or
notice  of  threatened  material  breach  thereof;  (iv)  neither  ObsEva  nor  any  of  its Affiliates  has  received  any  notice  from
Merck  Serono  of  any  intent  to  reduce  the  scope  of  the  field  thereunder  or  render  any  of  the  licenses  thereunder  non-
exclusive or otherwise terminate the Merck Serono Agreement, and, to ObsEva’s Knowledge no event, act or omission has
occurred which would reasonably give rise to the right of Merck Serono to reduce the scope of the field thereof or render
any of the licenses thereunder non-exclusive or otherwise terminate such agreement or any licenses thereunder (including
with  respect  to  any  particular  Patents  or  other  intellectual  property);  (v)  neither  ObsEva  nor  any  of  its Affiliates  have
waived or relinquished any rights thereunder; and (vi) entering into this Agreement and granting the rights and licenses
granted (or purported to be granted) to Organon hereunder complies with and will not result in a breach of the terms and
conditions of the Merck Serono Agreement.

(d)

ObsEva will inform Organon of any action it may take under the Merck Serono Agreement to the
extent such action may impact Organon’s interest hereunder and will consult with Organon with respect thereto.  Without
limiting  the  foregoing,  ObsEva  shall:  (i)  fulfill  in  all  material  respects  all  of  its  obligations,  including  its  payment
obligations, under, and shall not otherwise breach in any material respect, the Merck Serono Agreement and shall maintain
same in full force and affect; (ii) not assign (except an assignment to a party to which this Agreement has been assigned as
permitted under Section 14.9), amend, restate, amend and restate, terminate in whole or in part, or otherwise modify the
Merck Serono Agreement, or otherwise waive any rights under the Merck Serono Agreement, in each case, without the
prior  written  consent  of  Organon,  such  consent  not  to  be  unreasonably  withheld,  conditioned  or  delayed;  (iii)  provide
Organon  with  prompt  notice  of  any  claim  by  Merck  Serono  or  ObsEva,  respectively,  of  ObsEva’s  or  Merck  Serono’s
breach under the Merck Serono Agreement or notice from Merck Serono or ObsEva of termination of the Merck Serono
Agreement; (iv) promptly send to Organon copies of all other material correspondence from ObsEva to Merck Serono or
from Merck Serono to ObsEva with respect to the Merck Serono Agreement. Without limiting any other right or remedy
of  Organon  under  this Agreement  and  in  order  to  prevent,  ameliorate,  mitigate  or  cure  a  breach  of  the  Merck  Serono
Agreement, in the event that ObsEva becomes aware (either on its own, or by notice from Merck Serono) of its material
failure to perform any of its obligations under the Merck Serono Agreement (including where a breach or alleged breach
by Organon of its obligations under this Agreement or any other act or omission by Organon prevents such performance
by ObsEva or is the cause of ObsEva’s failure to perform such obligation), it shall so promptly notify Organon in writing.
 Except to the extent that a breach or alleged breach by Organon (or its Affiliate or Sublicensee) of its obligations under
this Agreement  or  any  other  act  or  omission  by  Organon  or  its Affiliate  or  Sublicensee  prevents  such  performance  by
ObsEva or is the cause of ObsEva’s failure to perform such obligation, ObsEva’s notice shall include ObsEva’s proposed
plan to remediate or cure such material failure for Organon’s review and approval, and if such failure is not cured

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

within  [*]  days  after  written  notice  to  Organon,  Organon  shall  have  the  right,  but  not  the  obligation,  to  perform  such
obligation  on  behalf  of  ObsEva  [*]  For  clarity,  if  and  to  the  extent  ObsEva  is  prevented  from  performing  any  of  its
obligations  under  the  Merck  Serono  Agreement  as  a  result  of,  or  ObsEva’s  material  failure  to  perform  any  of  its
obligations under the Merck Serono Agreement is caused by, a breach or alleged breach by Organon (or its Affiliate or
Sublicensee)  of  its  obligations  under  this  Agreement  or  any  other  act  or  omission  by  Organon  or  its  Affiliate  or
Sublicensee, the preceding sentence shall not apply.

(e)

Without  limiting  the  provisions  of  the  foregoing  clause  (d),  ObsEva  will  enforce  (or  otherwise
take  the  actions  necessary  to  enable  Organon  to  enforce)  ObsEva’s  rights  and  benefits  under  the  Merck  Serono
Agreement, and the obligations of Merck Serono under the Merck Serono Agreement, in each case, that may impact the
rights, benefits and obligations of Organon hereunder, including taking such actions and exercising such rights under the
Merck  Serono  Agreement  as  Organon  may  reasonably  request.    ObsEva  shall  provide  notice  to  Organon  of  any
discussions or other interactions with Merck Serono related to any Licensed Compound or Licensed Product, or the Merck
Serono Agreement, and allow Organon to participate in such discussions and interactions, and will not make any decisions
with Merck Serono with respect to any Licensed Compound or Licensed Product without the prior consent of Organon,
such consent not to be unreasonably withheld, conditioned or delayed.

(f)

If Organon reasonably requests amendments to the Merck Serono Agreement that are reasonably
necessary  to  facilitate  Development  and  Commercialization  of  Licensed  Compounds  and  Licensed  Products,    ObsEva
shall,  together  with  Organon,  negotiate  with  Merck  Serono  to  enter  into  an  appropriate  amendment  to  implement  the
requested modifications to the Merck Serono Agreement. For clarity, Organon shall participate, and at ObsEva’s request
take the lead, in such negotiations, and any such amendments shall be subject to the approval of Organon and ObsEva,
which approval shall not be unreasonably withheld, conditioned or delayed by either Party.

(g)

ObsEva  will  bear  and  will  be  responsible  for  all  of  its  payment  obligations,  including  royalty

payments to Merck Serono, under the Merck Serono Agreement.

2.4

Additional  In-License  Agreements.  During  the  Term,  neither  ObsEva  nor  any  of  its  Affiliates  shall,
without Organon’s prior written consent, enter into any agreement with a Third Party related to Know-How, Regulatory
Documentation,  material,  Patents,  or  other  intellectual  property  rights  directed  primarily  to  a  Licensed  Compound  or
Licensed Product.

2.5

Reserved Rights.  Notwithstanding the exclusive licenses granted to Organon hereunder, ObsEva hereby
reserves the right to practice, and to grant licenses under, the Licensed Technology to perform its obligations under this
Agreement and any ancillary agreement.

2.6

No Implied Licenses.  Except as set forth in this Agreement, neither Party shall acquire any license or
other intellectual property interest, by implication or otherwise, under or to any Patents, Know-How, or other intellectual
property owned or controlled by the other Party.

3.

GOVERNANCE

3.1

Joint  Advisory  Committee.    Within  [*],  the  Parties  shall  establish  a  Joint  Advisory  Committee  (the
“Joint Advisory Committee” or the “JAC”) to act as a consultative body, and provide input and oversight, with respect to
the Development of the Licensed Product in the Territory.  In particular, the JAC shall:

(a)

review and discuss the Development Plan and amendments thereto;

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(b)

(c)

(d)

and

oversee the Development activities performed pursuant to the Development Plan;

facilitate the transfer of Licensed Know-How to Organon under Section 4.4;

review and discuss draft protocols or synopses of protocols for Clinical Trials and Phase 4 Trials;

(e)

perform  such  other  functions  as  the  Parties  may  mutually  agree  in  writing  from  time  to  time,

except where in conflict with any provisions of this Agreement.

3.2

JAC Membership and Meetings.

(a)

JAC  Representatives.    The  JAC  shall  be  comprised  of  an  equal  number  of  up  to  three  (3)
representatives from each Party. Each Party’s JAC representatives will have appropriate scientific, clinical, regulatory or
commercial  expertise  and  ongoing  familiarity  with  the  activities  hereunder  as  are  required  to  fulfill  their  obligations  as
members of the JAC. Each Party may replace its representatives on the JAC on written notice to the other Party.  Organon
shall appoint the chairperson of the JAC.  The chairperson shall prepare and circulate agendas to JAC members at least
five  (5)  days  before  each  JAC  meeting  and  shall  direct  the  preparation  of  reasonably  detailed  minutes  for  each  JAC
meeting, which shall be approved by the chairperson and circulated to JAC members within thirty (30) days after such
meeting.

(b)

Meetings.  The JAC shall hold meetings at such times as it elects to do so, but no less frequently
than once per Calendar Year.  Notwithstanding the foregoing, either Party may request that a special ad hoc meeting of the
JAC be convened to address matters that cannot reasonably be postponed until the next scheduled meeting of the JAC, and
the Parties may mutually agree upon alternative meeting schedules, including less frequently.  Meetings may be conducted
in person or by teleconference, videoconference or other similar communications equipment.  In-person meetings shall be
held at locations alternately selected by the Parties.  Each Party shall be responsible for its own expenses of participating
in any JAC meeting.

(c)

Non-Member Attendance.    Each  Party  may  from  time  to  time  invite  a  reasonable  number  of
participants, in addition to its representatives, to attend the JAC meetings; provided that if either Party intends to have any
Third Party (including any consultant) attend such a meeting, such Party shall provide reasonable prior written notice to
the other Party.  The Party inviting a Third Party to attend a JAC meeting shall ensure that such Third Party is bound by
written confidentiality and non-use obligations consistent with the terms of this Agreement.  

3.3

Limitations on Authority. The JAC shall be an advisory body, and its decisions will not be binding on or
enforceable against either Party, and each Party shall remain responsible for such Party’s decisions relating to the conduct
of those activities for which it has a performance or other obligation hereunder, in each case in a manner consistent with
the  terms  and  conditions  of  this  Agreement.  Notwithstanding  the  foregoing,  if  [*],  then,  within  [*]  days  after  the
applicable  meeting  of  the  JAC,  ObsEva  may  submit  such  matter  to  the  Party’s  respective  Executive  Officers  who  shall
discuss  such  matter  in  good  faith  as  soon  as  practicable;  provided  that,  if  the  Executive  Officers  are  unable  to  reach
agreement after such good faith discussions within a period of [*] days after such matter is so submitted, then Organon’s
Executive  Officer  shall  have  the  final  decision-making  authority  with  respect  to  such  matter.  Without  limiting  the
generality of the foregoing, (a) the JAC shall not have the power to amend this Agreement, (b) no decision by the JAC or
by either Party may be in contravention of any terms or conditions of this Agreement, and (c) neither the JAC nor a Party
will  have  the  authority  to  (i)  amend  or  modify,  or  waive  compliance  with  this Agreement,  (ii)  obligate  either  Party  to
violate Applicable Law, the requirements of

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

any Regulatory Authority or any agreement with any Third Party, or (iii) impose any obligation on either Party that would
be  in  violation  of  such  Party’s  written  standard  operating  procedures,  written  business  policies,  or  written  compliance
policies or procedure.

3.4

Discontinuation  of  the  JAC.    The  activities  of  the  JAC  shall  solely  relate  to  governance  under  this
Agreement,  and  are  not  intended  to  be  or  involve  the  delivery  of  services.    Subject  to  Section  14.1(b),  the  JAC  shall
continue  to  exist  until  the  earlier  of  (a)  the  Parties  mutually  agreeing  to  disband  the  JAC,  (b)  ObsEva’s  election  to
withdraw its participation and remove its members from the JAC, or (c) [*]. At such time, the JAC shall automatically
dissolve and have no further responsibilities under this Agreement, and each Party shall designate a contact person for the
exchange  of  information  under  this Agreement.  Following  discontinuation  of  the  JAC,  any  information,  documents  or
reports that a Party is otherwise required to provide to the JAC pursuant to this Agreement shall be provided directly to the
other Party.

3.5

Alliance Managers.  Promptly after the Effective Date, each Party shall appoint an individual who shall
serve as the main point of contact for each Party to exchange information, facilitate communication and coordinate the
Parties’  activities  hereunder  (each,  an  “Alliance  Manager”).    The  Alliance  Managers  shall  oversee  communications
between the Parties for all matters between meetings of the JAC and after the JAC is discontinued, and shall have such
other  responsibilities  as  the  Parties  may  agree  in  writing  after  the  Effective  Date.  Each  Party  may  replace  its Alliance
Manager at any time by providing prior written notice (which may be by email) to the other Party.  Each Party shall bear
the costs of its Alliance Manager.

4.

DEVELOPMENT; REGULATORY

4.1

General.    Subject  to  the  terms  and  conditions  of  this Agreement,  including  Section  6.1,  Organon  shall
have  sole  right  and  responsibility,  at  its  sole  cost  and  expense,  to  Develop  the  Licensed  Compounds  and  Licensed
Products  in  the  Territory,  including,  for  clarity,  formulation  development,  GMP  manufacturing,  regulatory  dossier
development,  non-clinical  studies,  Clinical  Trial  development  and  execution,  quality  control  and  quality  management,
submission of Regulatory Filings, and interactions with relevant Regulatory Authorities.

4.2

Development Plan; Performance.  

(a)

Organon  shall  prepare,  and  shall  provide  to  the  JAC  for  review  and  discussion,  a  plan  setting
forth  the  Development  activities  (including  regulatory  activities)  to  be  undertaken  by  Organon  or  its  Affiliates  or
Sublicensees  and  intended  to  achieve  Regulatory Approval  of  the  Licensed  Products  in  the  Field  in  the  Major  Markets
(“Development  Plan”).  Organon  shall  prepare  an  update  to  the  Development  Plan  at  least  [*],  and  shall  provide  such
amended Development Plan to the JAC for review and discussion.

(b)

Organon  shall  perform,  and  will  ensure  that  its  Affiliates,  Sublicensees  and  Third  Party
contractors perform, all Development activities under this Agreement in sound scientific manner, in material compliance
with all Applicable Laws, and in accordance with, as applicable, ICH and GxP

4.3

Development Reports.  In advance of each regularly scheduled JAC meeting, or in writing provided to
ObsEva’s Alliance Manager at least [*] if the JAC is discontinued, Organon shall provide ObsEva with a high-level report
(by  means  of  a  slide  presentation  or  otherwise)  summarizing  Organon’s  and  its Affiliates  and  Sublicensees’  significant
Development activities in the Major Markets, and the results of such activities, during the period since the previous such
report. At  each  meeting  of  the  JAC,  Organon  will  present  and  the  Parties  will  discuss  such  report  and  a  summary  of
Organon’s and its Affiliates’ and

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Sublicensees’  significant  Development  efforts  and  updates  on  their  Development  progress  with  respect  to  the  Licensed
Compounds  and  the  Licensed  Products  in  the  Major  Markets  during  the  period  since  the  previous  JAC  meeting.  In
addition,  Organon  will  promptly  provide  ObsEva,  through  the  JAC  or  ObsEva’s  Alliance  Manager  if  the  JAC  is
discontinued,  with  written  notice  and  a  reasonably  detailed  description  of  any  significant  Development  events  (e.g.,
Clinical Trial  Initiation,  termination  or  completion,  clinical  holds,  Safety  Concerns  or  receipt  of  Regulatory Approvals)
arising  in  the  course  of  Organon’s  or  its  Affiliate’s  or  Sublicensee’s  Development  of  Licensed  Products  in  the  Major
Markets.  Without  limiting  the  foregoing,  [*],  Organon  shall  provide  ObsEva  a  written  report  summarizing  its
Development activities [*], in the format reasonably requested by ObsEva, [*].

4.4

Technology Transfer.

(a)

Within  [*]  after  the  Effective  Date,  to  the  extent  not  done  so  already,  ObsEva  shall,  and  shall
cause  its Affiliates  to,  without  additional  compensation,  disclose  and  make  available  to  Organon,  in  electronic  or  hard
copy form, as Organon may reasonably request, Licensed Know-How and any other Know-How claimed or Covered by
any Licensed Patent or otherwise relating to any Licensed Compound or Licensed Product.

(b)

In connection with such transfer, ObsEva, in a timely manner, shall assist Organon in the use and
understanding of such Licensed Know-How, including providing technical assistance and making its technical personnel
available  to  Organon.  Without  prejudice  to  the  generality  of  the  foregoing,  if  visits  of  ObsEva’s  representatives  to
Organon’s facilities are reasonably requested by Organon for purposes of transferring the Licensed Know-How or other
Know-How to Organon or for purposes of Organon acquiring expertise on the practical application of such Know-How or
assisting on issues arising during the Exploitation of any Licensed Compound or any Licensed Product, ObsEva shall send
appropriate representatives to Organon’s facilities.

(c)

In  addition,  in  accordance  with  the  Manufacturing  Transfer  Plan,  ObsEva  shall  effect  a  full
transfer to Organon or its designee (which designee may be an Affiliate or a CMO) of all Licensed Know-How relating to
the  then-current  process  for  the  Manufacture  of  the  Licensed  Compounds  and  Licensed  Products  (the  “Manufacturing
Process”)  and  to  implement  the  Manufacturing  Process  at  facilities  designated  by  Organon  (such  transfer  and
implementation,  as  more  fully  described  in  this  Section  4.4(c),  the  “Manufacturing  Technology  Transfer”).  ObsEva
shall  provide,  and  shall  [*]  cause  its  CMOs  to  provide,  all  assistance  requested  by  Organon  to  enable  Organon  (or  its
Affiliate  or  designated  CMO,  as  applicable)  to  implement  the  Manufacturing  Process  at  the  facilities  designated  by
Organon.    If  requested  by  Organon,  such  assistance  shall  include  providing  an  introduction  to  ObsEva’s  CMOs  and
facilitating the entering into of agreements with applicable Third Party suppliers relating to the Licensed Compounds and
Licensed Products. Without limitation to the foregoing, in connection with the Manufacturing Technology Transfer:

(i)

ObsEva  shall  make  available,  [*],  to  Organon  (or  its  Affiliate  or  designated  CMO,  as
applicable)  from  time  to  time  as  Organon  may  reasonably  request  during  the  period  of  the  Manufacturing  Technology
Transfer  (as  set  forth  in  Section  4.4(d)),  all  Manufacturing-related  Licensed  Know-How  and  materials  relating  to  the
Manufacturing Process, and all documentation constituting material support, performance advice, shop practice, standard
operating  procedures,  specifications  as  to  materials  to  be  used  and  control  methods,  that  are  necessary  or  reasonably
useful  to  enable  Organon  (or  its  Affiliate  or  designated  CMO,  as  applicable)  to  use  and  practice  the  Manufacturing
Process;

Affiliates to meet with, [*] cause all appropriate employees and representatives of its CMOs

(ii)

ObsEva  shall  cause  all  appropriate  employees  and  representatives  of  ObsEva  and  its

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

to meet with, employees or representatives of Organon (or its Affiliate or designated CMO, as applicable) at the applicable
manufacturing facility at mutually convenient times during the period of the Manufacturing Technology Transfer (as set
forth in Section 4.4(d)) to assist with the working up and use of the Manufacturing Process and with the training of the
personnel of Organon (or its Affiliate or designated CMO, as applicable) to the extent necessary or reasonably useful (as
reasonably  requested  by  Organon)  to  enable  Organon  (or  its  Affiliate  or  designated  CMO,  as  applicable)  to  use  and
practice the Manufacturing Process; and

(iii) Without  limiting  the  generality  of  clause  (ii)  above,  during  the  period  of  the
Manufacturing  Technology  Transfer  (as  set  forth  in  Section  4.4(d)),  ObsEva  shall  cause  all  appropriate  analytical  and
quality  control  laboratory  employees  and  representatives  of  ObsEva  and  its  Affiliates  to  meet  with,  [*]  cause  all
appropriate  analytical  and  quality  control  employees  and  representatives  of  its  CMOs  to  meet  with,  employees  or
representatives of Organon (or its Affiliate or designated CMO, as applicable) at the applicable manufacturing facility and
make available all necessary equipment, at mutually convenient times, to support and execute the transfer of all applicable
analytical methods and the validation thereof.

(d)

ObsEva’s  obligations  under  this  Section  4.4,  including  its  obligations  to  provide  support  or
assistance pursuant to Section 4.4(b) and to carry out the Manufacturing Technology Transfer pursuant to Section 4.4(c),
shall  terminate  on  the  earlier  of  (i)  completion  of  the  Manufacturing  Technology  Transfer  in  accordance  with  the
Manufacturing Transfer Plan or (ii) the date that is [*] after the Effective Date.  ObsEva shall provide up to an aggregate
of [*] full-time equivalent hours of ObsEva (or its Affiliate(s)) employees to support and assist pursuant to Section 4.4(b)
and  Section  4.4(c)  without  additional  compensation,  [*].  Thereafter,  Organon  shall  reimburse  ObsEva  for  its  full-time
equivalent costs of ObsEva (or its Affiliate(s)) (at an hourly rate of [*] per hour) (where such full-time equivalent costs are
in excess of the [*] full-time equivalent hours set forth in the preceding sentence) and any reasonable and verifiable out-
of-pocket costs incurred by ObsEva in providing such support and assistance; [*] Organon shall reimburse all documented
and verifiable out-of-pocket costs paid by ObsEva to CMOs in connection with the Manufacturing Technology Transfer,
including during the period in which ObsEva provides full-time equivalent hours free of charge to Organon pursuant to
this Section 4.4(c).  ObsEva shall invoice Organon for amounts owed by Organon pursuant to this Section 4.4(c), together
with supporting documentation, once per Calendar Quarter, which invoiced amounts shall be payable by Organon within
[*] days after its receipt of such invoice.

(e)

Without  limiting  the  foregoing,  in  the  event  that  ObsEva  makes  any  invention,  discovery,  or
improvement relating to the Manufacture of a Licensed Compound or a Licensed Product during the Term, ObsEva shall
promptly  disclose  such  invention,  discovery,  or  improvement  to  Organon,  and  shall,  at  Organon’s  request,  perform
technology transfer with respect to such invention, discovery, or improvement in the same manner as provided in Section
4.4(c) and Section 4.4(d).

(f)

Nothing  in  this  Section  4.4  shall  obligate  ObsEva  to  (i)  create  any  new  invention,  discovery,
improvement or other Know-How, (ii) purchase, lease or otherwise procure any additional equipment, software or other
resources, or (iii) take any actions that would result in the breach of any agreement with a Third Party.

4.5

Inventory.  ObsEva  shall,  at  Organon’s  request,  transfer,  assign  and  deliver  to  Organon  any  remaining
inventory  (as  and  to  the  extent  requested  by  Organon)  of  GMP  and  non-GMP  Licensed  Product  and  bulk  Licensed
Compound in ObsEva’s (or its Affiliates’ or its Third Party contract manufacturer’s) inventory as of the Effective Date,
[*].  ObsEva hereby represents to Organon that Schedule 4.5 sets forth a complete and accurate list of the total quantities
of such inventory as of the Effective Date (and indicating whether such inventory is GMP or non-GMP). ObsEva shall
make available to Organon,

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

directly or by enabling Organon to conduct an on-site or direct inspection of, documentation demonstrating that all such
inventory  to  be  provided  to  Organon  was  Manufactured  in  accordance  with  GMPs.    ObsEva  shall  and  hereby  does,
represent  to  Organon  that  such  inventory  was  Manufactured  in  accordance  with  GMPs,  Applicable  Laws  and  the
specifications therefor.  In furtherance of and without limiting the foregoing, ObsEva shall provide to Organon, as soon as
reasonably  practicable  following  the  Effective  Date  (but  in  all  cases,  within  [*]  days  thereafter),  reasonable  supporting
documentation  with  respect  to  such  inventory,  including  batch  records,  release  records  and  other  documentation
demonstrating the quality of such inventory. Organon may elect to take possession of less than the inventory remaining at
the Effective Date for any reason, including if Organon or its Affiliates believes that any such inventory was not (and at all
times  up  until  delivery  of  such  inventory  to  Organon  hereunder  did  not  remain)  Manufactured  in  accordance  with  all
Applicable Laws (including, as applicable, GMPs), and the specifications therefor, or that such inventory were adulterated
or misbranded within the meaning of the FFDCA or any similar Applicable Laws of any applicable jurisdiction or were
articles that could not, under the provisions of the Applicable Law, be introduced into interstate commerce.  If Organon
elects to take possession of less than the remaining inventory, Organon shall so notify ObsEva and ObsEva shall transfer,
assign and deliver to Organon only such inventory as requested by Organon. Except as otherwise set forth in this Section
4.5, [*].

4.6

Regulatory Responsibilities.  

(a)

Subject to the terms and conditions of this Agreement, including Section 6.1, Organon shall have
the sole right and responsibility, at its sole cost and expense, to seek to obtain and to maintain Regulatory Approvals for
the Licensed Products in the Field in the Territory and to conduct all related regulatory affairs, including communications
with  Regulatory Authorities  in  the  Territory  relating  to  the  Licensed  Compounds  and  Licensed  Products.  ObsEva  shall
support Organon, as may be reasonably necessary, in obtaining all Regulatory Approval for the Licensed Products, and in
the activities in support thereof, including providing necessary documents or other materials required by Applicable Law
to obtain all Regulatory Approval.

(b)

Organon  (or  its  Affiliate  or  Sublicensee)  shall  be  the  holder  of  and  shall  own  all  Regulatory
Filings, including INDs, Drug Approval Applications and Regulatory Approvals, for the Licensed Products in the Territory
in the name of Organon (or its Affiliate or Sublicensee, as applicable). Upon the request of Organon, ObsEva shall execute
all  documents  and  take  all  actions  as  are  necessary  or  reasonably  requested  by  Organon  to  transfer  and  vest  title  to
Organon in all Regulatory Filings for a Licensed Compound or Licensed Product owned or controlled by ObsEva (or any
of its Affiliates), including the INDs set forth on Schedule 4.6(a) (collectively, the “Existing INDs”).

4.7

Adverse Event Reporting.

(a)

Following the transfer of any Existing IND from ObsEva to Organon hereunder, or if there are no
Existing  INDs  to  transfer  then  on  and  after  the  Effective  Date,  Organon  shall  be  solely  responsible  for  the  collection,
review, assessment, tracking, submission, and filing of information related to adverse events (“AEs”) and serious adverse
events  (“SAEs”)  associated  with  the  Licensed  Compounds  and  Licensed  Products,  in  accordance  with  21  CFR  312.32,
314.80 and comparable regulations, guidance, directives and the like governing AEs/SAEs associated with such Licensed
Compound or Licensed Product.

(b)

Within  [*]  of  the  Effective  Date,  ObsEva  will  provide  Organon  with  all  legacy  AE  and  SAE

reports in the form of a mutually agreed format (electronic copy of CIOMS I form or E2B format).

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(c)

Following receipt, and completion of processing, by Organon of all AE and SAE reports required
to  be  provided  under  Section  4.7(b),  Organon  will  assume  the  role  of  global  safety  database  holder,  and  shall  be
responsible  for  maintaining,  at  its  sole  cost  and  expense,  the  global  safety  database,  for  the  Licensed  Compounds  and
Licensed Products.  

5.

COMMERCIALIZATION; MANUFACTURE; SUBCONTRACTING

5.1

Commercialization.    Subject  to  the  terms  and  conditions  of  this  Agreement,  including  Section  6.2,
Organon shall have the sole right and responsibility, at its sole cost and expense, to Commercialize the Licensed Products
in the Territory and to conduct market access activities relating to the Licensed Products, including: (a) developing and
executing  a  commercial  launch  and  pre-launch  plan;  (b)  negotiating  Reimbursement  Approvals  with  Governmental
Authorities; (c) marketing, advertising and promotion; (d) distribution and performance of related services; (e) handling
order  processing,  invoicing  and  collection,  inventory  and  receivables;  (f)  determining  pricing  and  terms  of  sale  of
Licensed Product; and (g) providing customer support.

5.2

Medical Affairs.  Subject to the terms and conditions of this Agreement, including Section 6.2, Organon
shall have the sole right and responsibility, at its sole cost and expense, to conduct medical affairs relating to Licensed
Products.

5.3

Manufacture.

(a)

Supply of Licensed Compounds and Licensed Products Prior to Manufacturing Technology
Transfer. During the period beginning on the Effective Date and ending on the date that is [*] after the Effective Date or,
if  earlier,  ending  on  the  date  the  facilities  designated  by  Organon  pursuant  to  Section  4.4(c)  are  fully  qualified  and
validated  following  completion  of  Manufacturing  Technology  Transfer  (the  “Supply  Period”),  pursuant  to  supply
agreements and associated quality agreements (collectively, “Supply Agreements”)  to be entered into by the Parties [*]
as soon as practicable (with a goal of no later than [*] days) after the Effective Date, unless otherwise agreed to in writing
by the Parties, ObsEva shall have Manufactured and supplied to Organon or its designee, through ObsEva’s existing CMO
that manufactures Licensed Compound and Licensed Products (“Licensed Product CMO”), the Licensed Compound and
the Licensed Products [*] for Development purposes throughout the Territory. [*] The Supply Agreements will include the
terms  set  forth  on  Schedule  5.3(a)  (as  applicable  to  Manufacture  and  supply  of  the  Licensed  Compound  and/or  the
Licensed Product) and other terms customary for supply arrangements between partners. ObsEva shall use [*] to ensure
that  ObsEva’s  agreements  with  the  Licensed  Product  CMO  are  consistent  with  such  terms,  provided  that  in  the  event
ObsEva  and  the  Licensed  Product  CMO  are  unable  to  mutually  agree  to  include  such  terms,  the  Parties  will  discuss  in
good  faith  any  necessary  amendments  to  Schedule  5.3(a)  prior  to  ObsEva  entering  into  an  agreement  or  work  order  or
similar  arrangement  with  any  such  Licensed  Product  CMO.  The  Supply  Agreements  will  provide  (i)  that  ObsEva’s
agreements  with  the  Licensed  Product  CMO  will  require  such  CMO  to  Manufacture  the  Licensed  Compounds  and
Licensed Products in accordance with GMPs and the specifications therefor and [*]  In all cases, the price for the supply
shall be [*].

(b)

Supply of Licensed Compounds and Licensed Products after the Supply Period. As between
the Parties, following expiration of the Supply Period, Organon shall have the sole right and responsibility to Manufacture
the  Licensed  Compounds  and  Licensed  Products  for  all  purposes  under  this Agreement,  including  supply  of  Licensed
Compound and Licensed Product to Organon’s Affiliates and Sublicensees.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

5.4

Reports.  Once  per  Calendar  Year,  in  advance  of  a  regularly  scheduled  JAC  meeting,  or  in  writing  to
ObsEva’s Alliance  Manager  if  the  JAC  is  discontinued,  Organon  shall  provide  ObsEva  with  (a)  a  high-level  report  (by
means  of  a  slide  presentation  or  otherwise)  summarizing  Organon’s  and  its  Affiliates  and  Sublicensees’  significant
Commercialization and medical affairs activities in the Major Markets during the period since the previous such report,
and  (b)  [*]. At  such  JAC  meeting  or  through  the  Parties’ Alliance  Managers,  Organon  will  present  and  the  Parties  will
discuss such report and a summary of Organon’s and its Affiliates’ and Sublicensees’ significant Commercialization and
medical  affairs  activities  with  respect  to  the  Licensed  Products  in  the Territory.    Further,  on  or  before  June  1st  of  each
Calendar  Year,  Organon  shall  provide  ObsEva  a  written  report  summarizing  its  Manufacturing  and  as  applicable
Commercialization activities in the Territory during the preceding Calendar Year, in the format reasonably requested by
ObsEva, [*].  

5.5

Performance.  Organon  shall  perform,  and  will  ensure  that  its Affiliates,  Sublicensees  and  Third  Party
contractors  perform,  all  Commercialization,  medical  affairs  and  Manufacturing  activities  under  this  Agreement  in
compliance with all Applicable Laws, including, as applicable, GxP standards.

5.6

Subcontracting. Organon shall have the right to engage any Third Party subcontractor to perform any or
all  of  its  obligations  hereunder,  including  contract  research  organizations,  contract  manufacturing  organizations  and
similar service providers. The applicable provisions of each agreement between Organon and a Third Party subcontractor
shall be materially consistent with the corresponding provisions of this Agreement and shall include confidentiality and
non-use  provisions  at  least  as  stringent  as  those  set  forth  in  Article  10.  Organon’s  engagement  of  any  subcontractor
pursuant to this Section 5.6 shall not relieve Organon of its obligations under this Agreement and Organon shall be fully
responsible  for  any  acts  or  omissions  of  its  subcontractors,  including  compliance  by  such  subcontractors  with  Anti-
Corruption  Laws,  Privacy  Laws  and  GxP  standards,  as  applicable,  and  for  compliance  with  all  provisions  of  this
Agreement.

6.

DILIGENCE  

6.1

Development  Diligence.    Organon,  itself  or  through  its  Affiliates  or  Sublicensees,  shall  use

Commercially Reasonable Efforts to [*].

6.2

Commercialization  Diligence.    Organon,  itself  or  through  its  Affiliates  or  Sublicensees,  shall  use

Commercially Reasonable Efforts to (a) [*].

7.

FINANCIAL PROVISIONS

7.1

Upfront  Payment.  Organon  shall  pay  to  ObsEva  a  one-time,  non-refundable,  noncreditable  payment
equal  to  Twenty-Five  Million  Dollars  ($25,000,000)  (the  “Upfront  Payment”),  payable  within  [*]  after  the  Effective
Date.

7.2

Non-Sales Milestones Payments.

(a)

Non-Sales  Milestones.    Subject  to  the  remainder  of  this  Section  7.2  and  Section  7.5,  Organon
shall pay to ObsEva the one-time, non-refundable, non-creditable milestone payments set forth in the table below upon the
first achievement of the applicable milestone event by the first Licensed Product (whether by or on behalf of Organon or
its Affiliates or Sublicensees):

Non-Sales Milestone Event

Non-Sales Milestone Payment

[*]

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

[*]
[*]
[*]
[*]
[*]
[*]
[*]
[*]
[*]

[*]
[*]
[*]
[*]
[*]
[*]
[*]
[*]
[*]

(b)

Non-Sales Milestone Cap. Each milestone payment in this Section 7.2 shall be payable one time
only  upon  the  first  achievement  of  such  milestone  by  the  first  Licensed  Product  and  no  amounts  shall  be  due  for
subsequent  or  repeated  achievements  of  such  milestone,  whether  for  the  same  or  a  different  Licensed  Compound  or
Licensed Product.  The maximum aggregate amount payable by Organon pursuant to this Section is [*]. [*].

(c)

Notice and Payment.  Organon shall notify ObsEva in writing and pay to ObsEva the applicable
development milestone payment within [*].  If, notwithstanding the fact that Organon has not provided ObsEva notice of
the achievement of any milestone event set forth in this Section 7.2, ObsEva believes that any such milestone event has
been achieved, it shall so notify Organon in writing and the Parties shall promptly meet and discuss in good faith whether
such  milestone  has  been  achieved.   Any  dispute  under  this  this  Section  7.2  regarding  whether  or  not  such  a  milestone
event has been achieved shall be subject to resolution in accordance with Section 14.3.

7.3

Sales-Based Milestones Payments.  

(a)

Sales Milestones.  Subject to the remainder of this Section 7.3 and Section 7.5, in the event the
aggregate Net Sales of all Licensed Products made by Organon or any of its Affiliates or Sublicensees in the Territory in a
given  Calendar  Year  first  exceeds  each  of  the  sales  milestone  events  set  forth  in  the  left-hand  column  of  the  table
immediately below, Organon shall pay to ObsEva the sales milestone payment in the corresponding amount set forth in
the right-hand column of the table within [*].

Sales Milestone Event

Sales Milestone Payment

[*]
[*]
[*]
[*]
[*]
[*]

[*]
[*]
[*]
[*]
[*]
[*]

(b)

Sales Milestone Cap. Each milestone payment in this Section 7.3 shall be payable only upon the
first  achievement  of  such  milestone  in  a  Calendar  Year,  and  no  amounts  shall  be  due  for  subsequent  or  repeated
achievements of such milestone in subsequent Calendar Years, whether for the same or a different Licensed Compound or
Licensed Product.  The maximum aggregate amount payable by Organon pursuant to this Section 7.3 is [*].

(c)

Expiration  of  Royalty  Term.  With  respect  to  each  Licensed  Product  in  each  country  in  the
Territory, from and after the expiration of the Royalty Term for such Licensed Product in such country, Net Sales of such
Licensed Product in such country shall be excluded for purposes of

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

calculating  the  Net  Sales  thresholds  set  forth  in  this  Section  7.3.    Following  the  expiration  of  the  final  Royalty  Term,
Organon will have no obligation to pay any milestone payments pursuant to this Section 7.3.

(d)

Notice and Payment.  As part of the report in Section 8.1, Organon shall provide written notice
to ObsEva upon the annual Net Sales of the Licensed Products reaching the values set forth in Section 7.3(a) above.  If,
notwithstanding the fact that Organon has not provided ObsEva notice of the achievement of any milestone event set forth
in this Section 7.3, ObsEva believes that any such milestone event has been achieved, it shall so notify Organon in writing
and  the  Parties  shall  promptly  meet  and  discuss  in  good  faith  whether  such  milestone  has  been  achieved.   Any  dispute
under this Section 7.3 regarding whether or not such a milestone event has been achieved shall be subject to resolution in
accordance with Section 14.3.

7.4

Royalty Payments.

(a)

Royalty Rate.  Subject to the remainder of this Section 7.4 and Section 7.5, during the Royalty
Term,  Organon  shall  make  quarterly  non-refundable,  non-creditable  royalty  payments  to  ObsEva  on  the  aggregate  Net
Sales of all Licensed Products made by Organon or any of its Affiliates or Sublicensees in the Territory (excluding Net
Sales of each Licensed Product in any country in the Territory for which the Royalty Term for such Licensed Product in
such country has expired) in a Calendar Year on a tiered basis at the applicable incremental royalty rate set forth in the
table below.

Portion of Aggregate Net Sales of all Licensed Products in the
Territory in a Calendar Year

Royalty Rate

[*]
[*]
[*]

[*]
[*]
[*]

(b)

Royalty Term.  The royalties set forth in Section 7.4(a) shall be paid on a Licensed Product-by-
Licensed Product and country-by-country basis from the First Commercial Sale of such Licensed Product in such country
by  or  on  behalf  of  Organon,  its Affiliates,  or  Sublicensees,  until  the  last  to  occur  of  [*]  (the  “Royalty  Term”).  With
respect to each Licensed Product in each country in the Territory, from and after the expiration of the Royalty Term for
such Licensed Product in such country, Net Sales of such Licensed Product in such country shall be excluded for purposes
of calculating the Net Sales thresholds and ceilings set forth in Section 7.4(a).

(c)

Royalty Reductions.

After Expiration of Royalty Term. Organon shall have no obligation to pay any royalty
with respect to Net Sales of any Licensed Product in any country after the Royalty Term for such Licensed Product in such
country has expired.

(i)

(ii)

Generic  Product  Sales.  On  a  Licensed  Product-by-Licensed  Product  and  country-by-
country basis during the Royalty Term, and subject to Section 7.4(c)(vi), if one or more Generic Products is sold in such
country and (A) if the aggregate [*] of all such Generic Products sold in such country in a Calendar Year exceed [*] of all
such  Generic  Products  and  Licensed  Product  sold  in  such  country  in  such  Calendar  Year,  then  commencing  at  the
beginning  of  the  Calendar  Quarter  in  which  such  [*]  of  Generic  Products  sold  exceed  [*],  the  royalty  rates  set  forth  in
Section 7.4(a) for such Licensed Product shall be reduced in such country by [*] for the remainder of the Royalty Term.
 [*] Notwithstanding the foregoing, [*].

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(iii)

Reduction  Circumstances.  Subject  to  Section  7.4(c)(vi),  on  a  Licensed  Product-by-
Licensed  Product  and  country-by-country  basis,  if  during  any  Calendar  Quarter  within  the  applicable  Royalty Term  for
such  Licensed  Product  in  such  country,  [*]  (the  “Reduction  Circumstances”),  then,  [*],  the  royalty  rates  set  forth  in
Section 7.4(a) applicable to the Net Sales of such Licensed Product in such country will be reduced by [*]; provided that,
[*], then [*]. For clarity, the maximum reduction in the royalty rates under this Section 7.4(c)(iii) is [*].

(iv)

Step-In  Prosecuted  Patent.  If,  during  the  Royalty  Term,  Organon  assumes  the
Prosecution  of  an  ObsEva  Patent  pursuant  to  Section  9.4(b)(i)  or  assumes  the  Prosecution  of  a  Merck  Serono  Patent
pursuant  to  Section  9.4(b)(ii)  (each,  a  “Step-In  Prosecuted  Patent”),  then  on  a  Licensed  Product-by-Licensed  Product
and  country-by-country  basis,  such  Step-In  Prosecuted  Patent  shall  cease  to  be  included  in  the  Licensed  Patents  for
purposes of determining the Royalty Term applicable to such Licensed Product in such country.

(v)

Third  Party  Payments.  In  the  event  that  Organon  enters  into  a  Third  Party  License
Agreement  pursuant  to  Section  9.7  in  order  to  obtain  a  license  under  [*]  (in  each  case  of  clause  (A)  and  (B),  an
“Infringing  Licensed  Product”  and  such  Third  Party  License Agreement,  a  “Third  Party  License”),  then,  subject  to
Section  7.4(c)(vi)  and  Section  7.5,  on  an  Infringing  Licensed  Product-by-Infringing  Licensed  Product  and  country-by-
country  or  jurisdiction-by-jurisdiction  basis,  Organon  shall  be  entitled  to  deduct  from  any  royalties  payable  hereunder
with  respect  to  that  Infringing  Licensed  Product  and  country  or  other  jurisdiction  [*]  actually  paid  to  such Third  Party
under  such  Third  Party  License  directly  as  a  result  of  the  Development,  Manufacture  or  Commercialization  of  such
Infringing  Licensed  Product  in  such  country  or  jurisdiction;  provided  that,  the  royalty  rate  that  otherwise  would  be
applicable  under  Section  7.4(a)  to  Net  Sales  of  such  Infringing  Licensed  Product  in  such  country  or  jurisdiction  in  a
Calendar Quarter may not be reduced by more than [*] as a result of any deduction under this Section 7.4(c)(v); provided
further that, Organon may carry forward any such deductions permitted under this Section 7.4(c)(v) that are incurred or
accrued in a Calendar Quarter but are not deducted from royalties due to ObsEva in such Calendar Quarter as a result of
the  foregoing  proviso  and  apply  such  amounts  against  royalties  due  to  ObsEva  in  any  subsequent  Calendar  Quarter
(subject to the minimum floor set forth in Section 7.4(c)(vi)) until the amount of such permitted deduction has been fully
applied against royalties due to ObsEva.

(vi)

Royalty Floor. Notwithstanding the above, on a Licensed Product-by-Licensed Product
and  country-by-country  basis  during  the  Royalty  Term,  in  no  event  will  (A)  the  royalty  rate  that  otherwise  would  be
applicable under Section 7.4(a) to such Licensed Product in such country in a Calendar Quarter be reduced by more than
[*]  as  a  result  of  the  operation  of  subclauses  (ii),  (iii),  and  (v)  above,  individually  or  in  combination  and  (B)  [*].  For
clarity,  on  a  Licensed  Product-by-Licensed  Product  and  country-by-country  basis,  in  no  event  will  ObsEva  receive  less
than [*] of the amount of royalties that otherwise would have been due and payable to ObsEva for such Licensed Product
in such country in any Calendar Quarter at the royalty rates applicable under Section 7.4(a)).

7.5

[*].

8.

PAYMENT; RECORDS; AUDITS

8.1

Payment;  Reports.    Royalty  payments  due  from  Organon  to  ObsEva  under  Section  7.4  shall  be
calculated and reported for each Calendar Quarter during the Term.  Royalty payments due under Section 7.4 shall be paid
within [*] days after the end of each Calendar Quarter and shall be accompanied by a report setting forth [*].

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

8.2

Exchange Rate; Manner and Place of Payment.  The Upfront Payment and all milestone payments to
be made by Organon to ObsEva under this Agreement shall be made in Dollars, and all royalty payments to be made by
Organon  to  ObsEva  under  this  Agreement  shall  be  made  in  Euros,  and  each  shall  be  made  by  bank  wire  transfer  in
immediately available funds to the bank account set forth on Schedule 8.2.  In the case of sales that are not in Dollars or
Euros (as applicable), the rate of exchange to be used in computing the monthly amount of currency equivalent in Dollars
or Euros (as applicable) due ObsEva shall be made at the monthly rate of exchange utilized by Organon in its worldwide
accounting  system  consistent  with  Accounting  Standards  and  Organon’s  conversion  procedures  used  in  preparing  its
financial statements applied on a consistent basis.

8.3

Taxes. Organon shall inform ObsEva of any withholding tax obligation imposed by taxing authorities on
payments due to ObsEva under this Agreement.  The Parties agree to cooperate in good faith to provide one another with
such  documents  and  certifications  as  are  reasonably  necessary  to  enable  the  Parties  to  minimize  or  recover  any
withholding  tax  payment.    If  any Applicable  Laws  require  that  taxes  be  deducted  and  withheld  from  royalties  or  other
payments payable by Organon to ObsEva under this Agreement, Organon shall (a) deduct those taxes from the payment
owed  by  Organon  hereunder;  (b)  pay  those  taxes  to  the  proper  Governmental  Authority;  (c)  send  evidence  of  the
obligation together with proof of payment to ObsEva within thirty (30) days following such payment; (d) remit the net
amount,  after  deductions  or  withholding  made  under  this  Section  8.3;  and  (e)  cooperate  with  ObsEva  in  any  way
reasonably requested by ObsEva to obtain available reductions, credits or refunds of such taxes. For clarity, Organon shall
be solely responsible for (i) [*] (and related tax returns) applicable to payments and transactions under this Agreement and
(ii)  all  customs  duties,  import  tariffs,  taxes,  freight,  insurance,  inspection  costs  and  the  like  attributed  to  or  for  the
transport and importation of any Licensed Product under this Agreement or the Supply Agreements. Notwithstanding the
foregoing, [*].

8.4

Records; Audit.  

(a)

Organon shall keep, and shall require its Affiliates and Sublicensees (as provided below) to keep,
complete and accurate records pertaining to the sale or other disposition of Licensed Products in sufficient detail to permit
ObsEva to confirm the accuracy of any sales milestone or royalty payment due hereunder.  Organon will keep, and shall
require its Affiliates and Sublicensees (as provided below) to keep, such books and records for [*] following the Calendar
Year to which they pertain, [*].

(b)

Upon the written request of ObsEva and not more than once in each Calendar Year, Organon shall
permit  an  independent  certified  public  accounting  firm  of  nationally  recognized  standing  selected  by  ObsEva  [*]  and
reasonably acceptable to Organon, at ObsEva’s expense (except as set forth below), to have access during normal business
hours  to  such  of  the  records  of  Organon  as  may  be  reasonably  necessary  to  verify  the  accuracy  of  the  reports  under
Section 8.1 pertaining to the [*] preceding the date of such request.  The accounting firm shall disclose to ObsEva [*] only
whether the reports under Section 8.1 are correct or incorrect and the amount of any discrepancy.  No other information
shall be provided to ObsEva [*]. If such accounting firm correctly identifies a discrepancy made during such period, then
(i)  in  the  case  of  an  underpayment,  Organon  shall  pay  the  underpaid  amount  within  [*]  of  the  date  ObsEva  delivers  to
Organon such accounting firm’s written report so correctly concluding, or as otherwise agreed upon by the Parties, and (ii)
in the case of an overpayment, the overpaid amount shall be credited against amounts payable by Organon in subsequent
payment periods, or if there are no subsequent payment periods at that time, shall be reimbursed to Organon by ObsEva
within [*] days of the date ObsEva delivers to Organon such accounting firm’s written report so correctly concluding, or
as otherwise agreed upon by the Parties. The fees charged by such accounting firm shall be paid by ObsEva unless the
accounting firm identifies an underpayment by Organon of [*] or more for the audited period, in which case Organon shall
reimburse ObsEva for the reasonable fees charged by such accounting firm.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(c)

Organon shall include in each sublicense granted by it to a Sublicensee a provision requiring the
Sublicensee to make reports to Organon, to keep and maintain records of sales made pursuant to such sublicense and to
grant  access  to  such  records  by  ObsEva’s  independent  accountant  to  the  same  extent  required  of  Organon  under  this
Agreement. ObsEva shall treat all financial information subject to review under this Section 8.4 or under any sublicense
agreement with a Sublicensee in accordance with the confidentiality and non-use provisions of this Agreement, and shall
cause its accounting firm to enter into an acceptable confidentiality agreement with Organon, its Affiliates or Sublicensees
obligating it to retain all such information in confidence pursuant to such confidentiality agreement.

(d)

Late Payments.  If any payment due under this Agreement is not paid when due in accordance
with the applicable provisions of this Agreement (including any underpayments of royalties found during an audit under
Section 8.4), such payment shall accrue interest from [*].  

9.

INTELLECTUAL PROPERTY

9.1

Ownership  of  Inventions.    Inventorship  of  all  Inventions  shall  be  determined  in  accordance  with  U.S.
patent laws without regard to conflict of law, irrespective of where or when such Invention occurs.  Subject to the license
grants and other rights herein, as between the Parties, each Party shall own and retain all right, title and interest in and to
any and all Inventions that are discovered, made, developed, generated, conceived or reduced to practice solely by or on
behalf of such Party (or its Affiliates or its or their (sub)licensees), whether or not patented or patentable, and any and all
Patents and other intellectual property rights with respect thereto.  

9.2

Certification  Under  Drug  Price  Competition  and  Patent  Restoration  Act.  Each  Party  shall
immediately give written notice to the other Party of any certification of which they become aware filed pursuant to 21
U.S. Code Section 355(b)(2)(A) in the U.S. or any comparable law or regulation in any jurisdiction in the Territory other
than the U.S. (or any amendment or successor thereto) claiming that any Licensed Patents in the Territory Covering the
Licensed  Compounds  or  Licensed  Products,  or  the  manufacture  or  use  thereof,  are  invalid  or  unenforceable,  or  that
infringement will not arise from the manufacture, use or sale of a product by a Third Party.

9.3

Listing of Patents. [*] shall determine which of the [*] Patents, if any, shall be listed for inclusion in the
Approved Drug Products with Therapeutic Equivalence Evaluations pursuant to 21 U.S. Code Section 355 in the U.S. or
any comparable law or regulation in any jurisdiction in the Territory other than the U.S. (or any amendment or successor
thereto). [*] shall have the right to propose to [*] any [*] Patents for such listing and [*] shall propose such [*] Patents to
[*] for such listing, provided that [*] shall have the right to determine whether any [*] Patents will be listed.

9.4

Patent Prosecution.  

(a)

Prosecution of [*] Patents and [*] Patents.

(i)

As  between  the  Parties,  [*]  shall  have  the  first  right,  but  not  the  obligation,  to  control
Prosecution of the Licensed Patents in the Territory [*]. With respect to Prosecution of [*] Patents, [*] shall keep [*] fully
informed  of  all  steps  with  regard  to  the  preparation,  filing,  prosecution,  and  maintenance  of  [*]  Patents,  including  by
providing [*] with a copy of material communications to and from any patent authority in the Territory regarding such [*]
Patents,  and  by  providing  [*]  drafts  of  any  material  filings  or  responses  to  be  made  to  such  patent  authorities  in  the
Territory sufficiently in advance of submitting such filings or responses so as to allow for a reasonable opportunity for [*]
to review and

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

comment thereon. [*] shall consider in good faith the requests and suggestions of [*] with respect to such [*] drafts and
with respect to strategies for filing and prosecuting the [*] Patents in the Territory.

(ii)

[*]  shall  keep  [*]  informed  of  the  course  of  the  Prosecution  of  [*]  Serono  Patents  or
related  proceedings  (e.g.,  interferences,  oppositions,  reexaminations,  releases,  revocations  or  nullifications)  [*].  With
respect to each [*] Patent [*] shall keep [*] fully informed of all steps with regard to the preparation, filing, prosecution,
and maintenance of such [*] Patent, including by providing [*] with a copy of material communications to and from any
patent authority in the Territory regarding such [*] Patent, and by providing [*] drafts of any material filings or responses
to be made to such patent authorities in the Territory sufficiently in advance of submitting such filings or responses so as
to allow for a reasonable opportunity for [*] to review and comment thereon. [*] shall consider in good faith the requests
and suggestions of [*] with respect to such [*] drafts and with respect to strategies for filing and prosecuting such [*] in
the Territory.

(b)

Abandonment of [*] Patents and [*] Patents.  

Patent, it shall provide reasonable prior written notice to [*] of such intention to abandon [*].

(i)

If  [*]  desires  to  irrevocably  abandon  or  cease  prosecution  or  maintenance  of  any  [*]

(ii)

If [*] receives written notice [*] that [*].  

(c)

Patent Term Extensions.  [*] shall have the right to make decisions regarding, and to file for and
seek  to  obtain,  [*],  patent  term  extensions  or  supplementary  protection  certificates  or  their  equivalents  and  any  other
extensions that are now or become available in the future, in any country in the Territory with respect to the [*]. [*] shall
keep  [*]  reasonably  informed  of  its  efforts  to  obtain  such  extension  or  supplementary  protection  certificate.    [*]  shall
provide  prompt  and  reasonable  assistance,  as  requested  by  [*],  including  by  taking  such  action  as  patent  holder  as  is
required under any Applicable Laws to obtain such patent extension or supplementary protection certificate.  With respect
to [*], [*] shall be responsible for obtaining patent term extensions wherever available and [*] shall provide [*], in order
for  [*]  to  provide  [*],  with  all  relevant  information  and  documentation  in  this  respect,  and  all  such  information  and
documentation  shall  be  provided  by  [*]  promptly  and  in  a  manner  that  will  ensure  all  such  patent  term  extensions  are
obtained  wherever  legally  permissible  and  to  the  maximum  extent  available.  In  the  event  any  election  with  respect  to
obtaining patent term extensions is to be made for any [*], [*] shall have the right to make such elections and shall inform
[*] of such elections in order for [*] to inform [*] of such elections as if such elections were made by [*] pursuant to the
[*].

(d)

Organon Improvement Patents. As between the Parties, [*] shall have the sole right, but not the

obligation, to control Prosecution of Organon Improvement Patents [*].  [*].

9.5

Patent Enforcement.

(a)

Notice.  Each Party shall promptly notify the other Party after becoming aware of any alleged or
threatened  infringement  by  a Third  Party  of  any  [*]  Patents  in  the Territory,  which  infringement  adversely  affects  or  is
expected to adversely affect any Licensed Product in the Field in the Territory, including any such alleged or threatened
infringement  by  reason  of  the  Third  Party  making,  using,  offering  to  sell,  selling  or  importing  any  product  that  is
competitive with a Licensed Product in the Field in the Territory (collectively, “[*] Patent Infringement”). In addition, if
either Party believes a [*] Patent is being infringed by a Third Party or if a Third Party claims that any [*] Patent is invalid
or  unenforceable  (“[*]  Patent  Infringement”),  such  Party  shall  notify  the  other  Party  and  provide  details  of  such  [*]
Patent Infringement.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(b)

Enforcement Right.  [*] shall have the first right, but not the obligation, to bring and control any

legal action with respect to an [*] Patent Infringement in the Territory (“Legal Action”) [*].

(c)

Collaboration.    Each  Party  shall  provide  to  the  Party  that  brings  a  Legal  Action  pursuant  to
Section  9.5(b)  (the  “Enforcing  Party”)  reasonable  assistance,  and  shall  cooperate  fully,  in  such  Legal  Action,  [*],
including to be named in such action if required by Applicable Laws to pursue such action.  The Enforcing Party shall
keep  the  other  Party  regularly  informed  of  the  status  and  progress  of  such  enforcement  efforts  and  shall  reasonably
consider  the  other  Party's  comments  on  any  such  efforts,  including  determination  of  litigation  strategy  and  filing  of
material papers to the court.  The non-enforcing Party shall be entitled to separate representation in such Legal Action by
counsel of its own choice [*], but such Party shall at all times cooperate fully with the Enforcing Party. [*].

(d)

Expense and Recovery.  [*] incurred by such Party as a result of a Legal Action with respect to
an ObsEva Patent Infringement.  If the Enforcing Party recovers monetary damages in such Legal Action, such recovery
shall be allocated [*].

(e)

[*] Patent Infringement.  The Parties acknowledge [*].

9.6

Infringement of Third Party Rights.  

(a)

Notice. If either Party becomes aware of any claim or action by a Third Party against either Party,
its Affiliates or sublicensees that claims that the Licensed Product, or its use, Development, Manufacture, importation or
sale infringes such Third Party's intellectual property rights in a jurisdiction in the Territory (“Third Party Action”), such
Party shall promptly notify the other Party and shall provide all details regarding the Third Party Action that is reasonably
available to such Party.

(b)

Right to Defend. The Parties acknowledge that, [*].

(c)

Consultation.  As  between  the  Parties,  the  Party  defending  a  Third  Party  Action  pursuant  to
Section 9.6(b) shall be the “Controlling Party.” The Controlling Party shall consult with the non-Controlling Party on all
material  aspects  of  the  defense.  The  non-Controlling  Party  shall  have  a  reasonable  opportunity  for  meaningful
participation  in  decision-making  and  formulation  of  defense  strategy.  The  Parties  shall  reasonably  cooperate  with  each
other  in  all  such  actions  or  proceedings.  The  non-Controlling  Party  will  be  entitled  to  be  represented  by  independent
counsel of its own choice at its own expense.

(d)

Appeal. In the event that a judgment in a Third Party Action is entered against the Controlling
Party and an appeal is available, the Controlling Party shall have the first right, but not the obligation, to file such appeal
[*]. If the Controlling Party does not desire to file such an appeal, it will promptly, in a reasonable time period (i.e., with
sufficient time for the non-Controlling Party to take whatever action may be necessary) prior to the date on which such
right  to  appeal  will  lapse  or  otherwise  diminish,  permit  the  non-Controlling  Party  to  pursue  such  appeal  [*].  The  non-
Controlling  Party  shall  then  become  the  Controlling  Party.  If  Applicable  Law  requires  the  non-Controlling  Party's
involvement in an appeal, the non-Controlling Party shall be a nominal party of the appeal and shall provide reasonable
cooperation to the Controlling Party at the Controlling Party's expense.

(e)

No Settlement Without Consent. No Controlling Party shall settle or otherwise compromise any
Third Party Action by admitting that any Licensed Patent is invalid or unenforceable without the non-Controlling Party's
[*] prior written consent.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

9.7

Third Party License Agreements. [*].

9.8

Product Trademarks.  Organon  shall  have  the  sole  right  to  determine  and  own  the Trademark(s)  to  be
used for the Licensed Products in the Territory, including a global unitary Trademark for each Licensed Product and any
other  Trademarks  to  be  used  for  the  Licensed  Products  in  any  country  in  the  Territory  (the  “Product  Trademarks”).
Organon  shall  have  the  sole  right,  at  its  cost  and  expense,  for  the  filing,  prosecution,  registration  and  maintenance
(including the defense of any opposition proceeding or equivalent proceeding) of the Product Trademarks throughout the
Territory and for enforcement of the Product Trademarks against any known or suspected infringement or unauthorized
use or misappropriation by a Third Party of any Product Trademarks in the Territory.  

10.

CONFIDENTIALITY

10.1

Confidential  Information.    Except  to  the  extent  expressly  authorized  by  this Agreement  or  otherwise
agreed  in  writing  by  the  Parties,  the  Parties  agree  that,  during  the Term  and  for  [*]  thereafter,  the  receiving  Party  shall
keep confidential and shall not publish or otherwise disclose, and shall not use for any purpose other than as expressly
provided for in this Agreement, any Confidential Information of the other Party, and both Parties shall keep confidential
and, subject to the remainder of this Article 10, shall not publish or otherwise disclose the terms of this Agreement.  Each
Party will use at least the same standard of care as it uses to protect proprietary or confidential information of its own (but
no  less  than  reasonable  care)  to  ensure  that  its  employees,  agents,  consultants,  contractors,  licensees,  sublicensees,  and
other representatives do not disclose or make any unauthorized use of the other Party’s Confidential Information.  Each
Party  will  promptly  notify  the  other  upon  discovery  of  any  loss  or  unauthorized  use  or  disclosure  of  the  other  Party’s
Confidential  Information.  The  terms  of  Section  10.1  through  Section  10.3,  inclusive,  shall  apply  to  and  be  binding  on
Organon with respect to any Merck Serono Confidential Information (as defined below), and Organon shall be deemed the
receiving Party of any such Merck Serono Confidential Information. “Merck Serono Confidential Information” means
any information relating to the business, operations and products of Merck Serono or any of its Affiliates, including any
technical  information,  Know-How,  trade  secrets  or  inventions  (whether  patentable  or  not),  not  known  or  generally
available  to  the  public,  that  is  disclosed  to  Organon  pursuant  to  this  Agreement  and  identified  as  Merck  Serono
Confidential Information at the time of such disclosure.  ObsEva shall use reasonable, good faith efforts to determine and
identify as Merck Serono Confidential Information only that information relating to the business, operations and products
of  Merck  Serono  or  any  of  its Affiliates  that  was  disclosed  to  ObsEva  by  Merck  Serono  pursuant  to  the  Merck  Serono
Agreement or that otherwise became known to ObsEva by virtue of the Merck Serono Agreement.

10.2

Exceptions.  The obligations of confidentiality and restriction on use under Section 10.1 will not apply to

any information that the receiving Party can prove by competent written evidence:

(a)

is now, or hereafter becomes, through no act or failure to act on the part of the receiving Party,

generally known or available to the public;

(b)

is known by the receiving Party at the time of receiving such information, other than by previous
disclosure  of  the  disclosing  Party,  or  its  Affiliates,  employees,  agents,  consultants,  or  contractors;  provided  that  the
foregoing exception shall not apply with respect to Regulatory Documentation;

(c)

is  hereafter  furnished  to  the  receiving  Party  without  restriction  by  a  Third  Party  who  has  no

obligation of confidentiality or limitations on use with respect thereto, as a matter of right; or

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(d)

is independently discovered or developed by the receiving Party without the use of the disclosing
Party’s  Confidential  Information;  provided  that  the  foregoing  exception  shall  not  apply  with  respect  to  Regulatory
Documentation.

10.3

Authorized Disclosure.  Each Party may disclose Confidential Information belonging to the other Party
as expressly permitted by this Agreement or if and to the extent such disclosure is reasonably necessary in the following
instances:

(a)

to a patent authority in connection with filing, prosecuting, and maintaining Patents, in each case

as contemplated by, and in accordance with the terms of, this Agreement;

(b)

to Governmental Authorities in connection with filing Regulatory Filings and seeking Regulatory

Approval for Licensed Products in accordance with this Agreement;

(c)

(d)

prosecuting or defending litigation as permitted by this Agreement;

disclosure  as  required  to  comply  with  Applicable  Law  (including  regulations  promulgated  by

securities exchanges) or court or administrative orders;

(e)

disclosure  of  the  financial  terms  of  this Agreement  to  actual  and  bona  fide  potential  investors,
acquirors,  licensees,  and  other  financial  or  commercial  partners  solely  for  the  purpose  of  evaluating  or  carrying  out  an
actual or potential investment, acquisition, or collaboration, in each case under written obligations of confidentiality and
non-use at least as stringent as those herein;

(f)

disclosure  by  Organon  or  its  Affiliates  or  Sublicensees  to  its  or  their  employees,  consultants,
contractors, agents, licensees, sublicensees or other Third Parties, in each case as may be necessary or useful in connection
with the Development, Manufacture, Commercialization or other Exploitation of the Licensed Compounds and Licensed
Products  in  accordance  with  the  terms  of  this  Agreement  or  otherwise  in  connection  with  the  performance  of  its
obligations  or  exercise  of  its  rights  as  contemplated  by  this  Agreement,  in  each  case  under  written  obligations  of
confidentiality and non-use at least as stringent as those herein; provided that disclosure pursuant to this clause (f) shall
not be permitted with respect to Merck Serono Confidential Information except to the extent such disclosure is reasonably
necessary in connection with conducting pre-clinical studies or Clinical Trials of Licensed Products or seeking Regulatory
Approval of Licensed Products; and

(g)

disclosure made by ObsEva or its Affiliates after receiving advanced approval from Organon, to
its  employees,  consultants,  contractors,  agents,  licensees,  or  sublicensees  to  the  extent  necessary  in  assisting  with
ObsEva’s activities contemplated by this Agreement, in each case under written obligations of confidentiality and non-use
at least as stringent as those herein.

Notwithstanding  the  foregoing,  in  the  event  that  a  Party  is  required  to  make  a  disclosure  of  the  other  Party’s
Confidential  Information  pursuant  to  Section  10.3(c)  or  Section  10.3(d),  it  will,  except  to  the  extent  prohibited  by
Applicable Law or judicial or administrative process, give advance notice as promptly as reasonably practicable (and to
the extent possible, at least [*] notice) to the other Party of such disclosure and provide a draft of the disclosure to the
other  Party  reasonably  in  advance  of  such  filing  or  disclosure  to  give  the  other  Party  a  reasonable  opportunity  to  take
whatever action available to it under Applicable Law that it deems necessary to protect its Confidential Information (for
example,  quash  such  order  or  to  obtain  a  protective  order  or  confidential  treatment  requiring  that  the  Confidential
Information  and  documents  that  are  the  subject  of  such  order  be  held  in  confidence  by  the  applicable  court  or
governmental body or, if disclosed, be used only for the purposes for which the order was issued).  The other Party will
provide any
[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

comments as soon as practicable, in no event later than [*] from such notice, and such Party will consider in good faith
any timely comments provided by the other Party, but without any obligation to accept such comments. In any event, the
Party required to make such disclosure will use efforts to secure confidential treatment of such Confidential Information at
least as diligent as such Party would use to protect its own confidential information of a similar nature, but in no event less
than reasonable efforts, and the Parties agree to take all reasonable action to avoid disclosure of Confidential Information,
and in the event that no protective order or other remedy is obtained, or the disclosing Party waives compliance with the
terms  of  this  Agreement,  the  receiving  Party  shall  furnish  only  that  portion  of  Confidential  Information  which  the
receiving Party is advised by counsel is legally required to be disclosed.  Any information disclosed pursuant to any of the
foregoing subsections shall remain Confidential Information and subject to the foregoing provisions of this Article 10.

10.4

Licensed  Know-How.  ObsEva  agrees  to  keep  all  Licensed  Know-How  confidential  subject  to  Section
10.2  except  for  disclosures  (a)  reasonably  necessary  in  connection  with  filing,  prosecuting  and  maintaining  Patents  as
contemplated  by,  and  in  accordance  with  the  terms  of,  this  Agreement  and  the  Merck  Serono  Agreement  and  (b)  as
required  to  comply  with  Applicable  Law  (including  regulations  promulgated  by  securities  exchanges)  or  court  or
administrative orders, provided that the terms of the last paragraph of Section 10.3 will apply to such disclosures, mutatis
mutandis.

10.5

Publications.  [*].

10.6

Clinical  Trial  Registration.    In  all  cases,  Organon  shall  have  the  right  to  register  Clinical  Trials  and
publish the results or summaries of results of any Clinical Trials conducted hereunder with respect to Licensed Compound
or Licensed Product on clinicaltrials.gov or other similar registry.

10.7

Disclosures to Merck Serono. Notwithstanding anything to the contrary herein, ObsEva shall be entitled

to provide a copy of this Agreement to Merck Serono, subject to redaction of the financial terms set forth herein.

10.8

Press Releases and Public Disclosures.  The Parties have agreed on a joint press release announcing the
execution of this Agreement as set forth on Schedule 10.8. Subject to obtaining consent from Merck Serono in accordance
with the Merck Serono Agreement, the Parties shall issue such joint press release on the date and at the time(s) agreed by
the Parties.  Other than such initial joint press release, except as set forth in this Section  10.8, neither Party may make any
press  release  or  public  announcements  regarding  any  matter  covered  by  this Agreement,  including  the  Development  or
Commercialization of Licensed Products, without the prior written consent of the other Party and Merck Serono (which
consent shall not be unreasonably withheld). Organon shall provide a draft of any such proposed press release or public
announcement to ObsEva at least [*] prior to the desired date of issuance. ObsEva will promptly submit such press release
or public announcement to Merck Serono, and ObsEva will notify Organon if Merck Serono objects. If neither ObsEva
nor  Merck  Serono  objects  to  such  press  release  or  public  announcement  within  the  [*]  deadline,  such  press  release  or
public  announcement  shall  be  deemed  to  be  approved  by  ObsEva  and  Merck  Serono.  If  Organon  is  a  publicly-traded
company  and  believes  it  is  required  to  issue  a  press  release  or  make  any  other  public  announcement  to  comply  with
applicable  law  as  a  publicly-traded  company,  Organon  may  issue  such  press  release  or  public  announcement,  provided
that, if time allows, Organon shall submit the proposed press release or public announcement in writing to ObsEva no less
than [*] prior to the anticipated date of disclosure so as to provide ObsEva and Merck Serono a reasonable opportunity to
comment thereon.  

10.9

Equitable Relief.  Given the nature of the Confidential Information and the competitive damage that a

Party would suffer upon unauthorized disclosure, use, or transfer of its Confidential

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Information to any Third Party, the Parties agree that monetary damages may not be a sufficient remedy for any breach of
this Article 10.  In addition to all other remedies, a Party shall be entitled to seek specific performance and injunctive and
other equitable relief as a remedy for any breach or threatened breach of this Article 10.

11.

REPRESENTATIONS, WARRANTIES AND COVENANTS

11.1
Effective Date that:

ObsEva  Representations  and  Warranties.  ObsEva  represents  and  warrants  to  Organon  as  of  the

(a)

ObsEva  has  the  full  power,  authority  and  right  to  enter  into  this Agreement  and  to  perform  its
obligations hereunder in accordance with the terms and conditions hereof, and all requisite corporate action has been taken
to authorize ObsEva's execution, delivery and performance of this Agreement;

(b)

The execution, delivery and performance of this Agreement by ObsEva does not breach, violate,
contravene or constitute a default under any contract, arrangement or commitment to which ObsEva is a party or by which
it is bound, or violate any statute, law or regulation or any order, writ, judgement, injunction, decree, determination, or
award of any court, governmental body or administrative or other agency having jurisdiction over ObsEva;

(c)

All  consents,  approvals  and  authorizations  from  all  governmental  authorities  or  other  Third
Parties required to be obtained by ObsEva in connection with the execution, delivery and performance of this Agreement
have been obtained;

(d)

All Licensed Patents existing as of the Effective Date are listed on Schedule 1.60 (the “Existing
Patents”). The Existing Patents are subsisting and, to ObsEva’s Knowledge, are not invalid or unenforceable, in whole or
in part; to ObsEva’s Knowledge, the Existing Patents are being diligently prosecuted in the respective patent offices in the
Territory in accordance with Applicable Law; the Existing Patents have been filed and maintained properly and correctly
and all applicable fees have been paid on or before the due date for payment;

(e)

ObsEva  is  the  sole  owner  or  exclusive  licensee  under  the  Merck  Serono  Agreement  of  the
Licensed Technology; ObsEva is entitled to grant the rights and licenses it grants to Organon under this Agreement with
respect to the Licensed Technology, free and clear of any rights therein granted to any Third Party;

(f)

[*], neither ObsEva nor any of its Affiliates has previously entered into any agreement, whether
written  or  oral,  with  respect  to  the  assignment,  transfer,  license,  conveyance  or  encumbrance  of,  or  otherwise  assigned,
transferred, licensed, conveyed or encumbered its right, title, or interest in or to the Licensed Technology, the Licensed
Compounds, or the Licensed Products (including by granting any covenant not to sue with respect thereto) or any Patent
or other intellectual property or proprietary right or Know-How that would be an Existing Patent or Existing Know-How
but for such assignment, transfer, license, conveyance, or encumbrance and it will not enter into any such agreements or
grant  any  such  right,  title,  or  interest  to  any  Person  that  is  inconsistent  with  the  rights  and  licenses  granted  to  Organon
under this Agreement;

(i)

[*]

(1)

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

[*].

[*].

(2)

(3)

[*]

[*]

(ii)

(iii)

(g)

The  Merck  Serono  Agreement  is  the  only  agreement  between  ObsEva  (or  its  Affiliate)  and  a
Third Party entered into prior to the Effective Date pursuant to which ObsEva (or its Affiliate) Controls any Patents or
Know-How included within the Licensed Patents or Licensed Know-How (other than (i) agreements with ObsEva’s (or its
Affiliate’s)  employees  and  agreements  with  independent  contractors  and  service  providers  entered  into  in  the  ordinary
course of ObsEva’s (or its Affiliate’s) business, in each case, pursuant to which such employee, independent contractor or
service  provider,  as  applicable,  assigns  its  right,  title  and  interest  to  such  Patents  and  Know-How  to  ObsEva  (or  its
Affiliate), and (ii) agreements entered into in the ordinary course of business with service providers under which ObsEva
(or its Affiliate) is granted customary licenses to the provider’s proprietary technology);

(h)

Except  for  (A)  the  Merck  Serono Agreement  [*],  the  Development  or  Commercialization  of  a
Licensed  Compound  or  Licensed  Product  by  or  on  behalf  of  Organon  or  its Affiliates  will  not  require  or  result  in  any
financial payment by ObsEva, Organon or any of their respective Affiliates under any agreement or other arrangement by
which ObsEva or any of its Affiliates is bound; except for the Merck Serono Agreement, ObsEva is not obligated under
any contract or other agreement to make any payments by way of royalties, fees, or otherwise to any owner or licensor of,
or other claimant to, any Patent or other intellectual property or proprietary right or Know-How;

(i)

To ObsEva’s Knowledge, no Person is infringing or threatening to infringe or misappropriating or

threatening to misappropriate the Existing Patents or Existing Know-How;

(j)

ObsEva  has  not  received  any  written  notice  from  a  Third  Party  that  the  Development  of  any
Licensed  Compound  or  Licensed  Product  conducted  prior  to  the  Effective  Date  has  infringed  any  Patents  or
misappropriated any Know-How of any Third Party;

(k)

There are no claims, judgments, or settlements against, or amounts with respect thereto, owed by
ObsEva or any of its Affiliates relating to the Existing Patents or the Existing Know-How. No claim or action has been
brought or, to ObsEva’s Knowledge as of the Effective Date, threatened, by any Third Party alleging that (i) any of the
Existing  Patents  are  invalid  or  unenforceable,  or  (ii)  the  Existing  Patents  or  the  Existing  Know-How,  or  the  disclosing,
copying,  making,  assigning,  licensing  or  use  of  the  Existing  Patents  or  Existing  Know-How,  or  the  Development,
Commercialization or other Exploitation of the Licensed Compounds or Licensed Products as contemplated herein, does
or will infringe or misappropriate, or would infringe or misappropriate, any Patent or other intellectual property right of
any Third Party;

(l)

To ObsEva’s Knowledge, other than the Merck Serono Patents, ObsEva is not aware of any Third
Party Patent that claims (i) the composition of matter of any Licensed Compound, or (ii) a method of use of any Licensed
Compound, as such method is described in the Existing Patents;

(m)

To ObsEva’s Knowledge, other than the Merck Serono Patents, ObsEva is not aware of any Third

Party Patent or Know-How that is used in the Manufacture of Licensed Compound or Licensed Product;

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(n)

There  are  no Trademarks  Controlled  by  ObsEva  or  any  of  its Affiliates  that  have  been  used  by

ObsEva or any of its Affiliates in connection with Licensed Compound or Licensed Product or the Development thereof;

(o)

To  ObsEva’s  Knowledge,  the  practice  by  Organon  under  the  Licensed  Technology  or  the
Exploitation by Organon (or its Affiliates or Sublicensees) of any Licensed Compound or Licensed Product, in each case,
as  contemplated  under  this  Agreement,  does  not  and  will  not  infringe,  misappropriate,  or  otherwise  violate    any
intellectual property of any Third Party;

(p)

ObsEva  and  its  Affiliates  have  generated,  prepared,  maintained,  and  retained  all  Regulatory
Documentation that is required to be maintained or retained prior to the Effective Date pursuant to and in accordance with
GLP and GCP and Applicable Laws;

(q)

Each Existing IND is in full force and good standing, and neither ObsEva nor any of its Affiliates
has received any notice in writing, or otherwise has Knowledge of any facts, which have, or reasonably could have, led
ObsEva (or its Affiliate) to believe that any Existing IND is not currently in, or may not remain in, good standing with the
FDA or other applicable Regulatory Authority;

(r)

The Existing Know-How has been kept confidential or has been disclosed to Third Parties only
under terms of confidentiality.  To the Knowledge of ObsEva, no breach of such confidentiality has been committed by
any Third Party;

(s)

To  ObsEva’s  Knowledge  (i)  ObsEva  has  made  (and  will  make)  available  to  Organon  all
Regulatory  Documentation  and  Licensed  Know-How  and  other  information  in  its  possession  or  Control  regarding  or
related to the Licensed Compounds or the Licensed Products, and (ii) all such Regulatory Documentation and Licensed
Know-How and other information are (and, if made available after the Effective Date, will be) true, complete, and correct.
ObsEva has provided Organon with the opportunity to review all written material data in ObsEva’s possession relating to
the subject matter of this Agreement, and has not intentionally concealed from Organon any such material data;

(t)

to ObsEva’s Knowledge: (i) there are no scientific or technical facts or circumstances that have
not  been  disclosed  to  Organon,  and  that  would  materially  adversely  affect  the  scientific,  therapeutic,  or  commercial
potential  of  the  Licensed  Products;  and  (ii)  there  is  nothing  within  ObsEva’s  control  that  has  not  been  disclosed  to
Organon  and  that  could  materially  adversely  affect  the  acceptance,  or  the  subsequent  approval,  by  any  Regulatory
Authority of any Regulatory Submissions with respect to any Licensed Product;

(u)

ObsEva  has  provided  to  Organon  true,  complete,  and  correct  (redacted)  copies  of  all  material
agreements relating to the Licensed Technology or the Development of the Licensed Compounds and Licensed Products
and components thereof (as applicable) that are in effect as of the Effective Date;

(v)

ObsEva has provided Organon access to all material correspondence between ObsEva (or any of
its Affiliates) and the FDA (or other Governmental Authority) regarding the Licensed Compounds and Licensed Products
in ObsEva’s possession or control or of which ObsEva is aware, including (i) reports of inspection observations from any
Governmental Authority related to Manufacturing facilities where the Licensed Compounds or any Licensed Product is
being  Manufactured,  (ii)  establishment  inspection  reports  from  any  Governmental Authority,  (iii)  any  FDA  Form  483s
relating to the Licensed Compounds or Licensed Products or any equivalent thereto from any Governmental Authority in
any applicable jurisdiction, (iv) safety inquiries from any Governmental Authority, (v) any input from any

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Governmental Authority related to trial approvability, post-approval obligations, and notice of clinical hold, and (v) any
notice, warning letter, regulatory letter, Section 305 notice, or any other similar communication to ObsEva or any of the
Affiliates stating that their businesses were or are in material violation of any Applicable Law, or were or are the subject
of  any  material  pending,  threatened  or  anticipated  administrative  agency  or  governmental  or  regulatory  authority
investigation, proceeding, review or inquiry; in each case ((i) through (v)), with respect to the Licensed Compounds or
Licensed Products;

(w)

The  Licensed  Technology  has  not  been  created  pursuant  to,  and  is  not  subject  to,  any  funding
agreement with any Governmental Authority or any Third Party, and is not subject to the requirements of the Bayh-Dole
Act or any similar provision of any Applicable Laws;

(x)

Other  than  as  provided  under  the  Merck  Serono  Agreement,  the  process  used  by  ObsEva  to
Manufacture the Licensed Compounds or Licensed Products (as applicable) as of the Effective Date does not require the
use of any Third Party intellectual property right;

(y)

ObsEva has provided to Organon true, complete, and correct (redacted) copies of all agreements
relating  to  the  Manufacture  or  supply  of  the  Licensed  Compounds  and  Licensed  Products  and  components  thereof  (as
applicable) that are in effect as of the Effective Date, a complete list of which appears on Schedule 11.1(z);

(z)

Neither  ObsEva  nor  any  of  its  Affiliates,  and,  to  ObsEva’s  Knowledge,  none  of  its  or  their
respective  officers,  employees,  or  agents,  has  made  an  untrue  statement  of  material  fact  or  fraudulent  statement  to  the
FDA  or  any  other  Regulatory Authority  with  respect  to  the  Development  of  the  Licensed  Compounds  or  the  Licensed
Products,  failed  to  disclose  a  material  fact  required  to  be  disclosed  to  the  FDA  or  any  other  Regulatory Authority  with
respect to the Development of the Licensed Compounds or the Licensed Products, or committed an act, made a statement,
or failed to make a statement with respect to the Development of the Licensed Compounds or the Licensed Products that
could reasonably be expected to provide a basis for the FDA to invoke its policy respecting “Fraud, Untrue Statements of
Material  Facts,  Bribery,  and  Illegal  Gratuities”,  set  forth  in  56  Fed.  Reg.  46191  (September  10,  1991)  and  any
amendments thereto or any analogous laws or policies in the Territory;

(aa)

ObsEva  and  its  Affiliates  have  conducted,  and,  to  ObsEva’s  Knowledge,  their  respective
contractors  and  consultants  have  conducted,  all  Manufacture  and  Development  of  the  Licensed  Compounds  or  the
Licensed  Products  that  they  have  conducted  prior  to  the  Effective  Date  in  accordance  with  GxP  and Applicable  Law.
 ObsEva has conducted, and has caused its contractors and consultants to conduct, any and all pre-clinical and Clinical
Trials  related  to  the  Licensed  Compounds  and  Licensed  Products  in  accordance  with  GxP  and Applicable  Law,  and,  to
ObsEva’s Knowledge, all Licensed Compounds and Licensed Products used in Clinical Trials conducted by or on behalf
of  ObsEva  or  its  Affiliates  prior  to  the  Effective  Date  were  Manufactured  in  accordance  with  all  Applicable  Laws
(including GMPs);

(bb)

To  ObsEva’s  Knowledge,  no  investigation  or  proceedings  have  been  carried  out  by  Regulatory

Authorities with respect to the Licensed Product or any ObsEva facilities and the facilities of its CMOs; and

(cc)

ObsEva represents and warrants that it and its Affiliates have not ever been, are not currently, nor
are they the subject of a proceeding that could lead to it or its Affiliates becoming a Debarred Entity, Excluded Entity or
Convicted Entity and it and its Affiliates will not use in any capacity, in connection with the obligations to be performed
under this Agreement, any person who is a Debarred

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Individual, Excluded Individual or a Convicted Individual. For purposes of this provision, the following definitions shall
apply:

A “Debarred Individual” is an individual who has been debarred by the FDA pursuant
to 21 U.S.C. §335a (a) or (b) from providing services in any capacity to a Person that has an approved or pending drug or
biological product application.

(i)

A “Debarred Entity” is a corporation, partnership or association that has been debarred
by the FDA pursuant to 21 U.S.C. §335a (a) or (b) from submitting or assisting in the submission of any abbreviated drug
application, or a subsidiary or affiliate of a Debarred Entity.

(ii)

(iii)

An  “Excluded  Individual”  or  “Excluded  Entity”  is  (A)  an  individual  or  entity,  as
applicable,  who  has  been  excluded,  debarred,  suspended  or  is  otherwise  ineligible  to  participate  in  federal  health  care
programs  such  as  Medicare  or  Medicaid  by  the  Office  of  the  Inspector  General  (OIG/HHS)  of  the  U.S.  Department  of
Health and Human Services, or (B) is an individual or entity, as applicable, who has been excluded, debarred, suspended
or  is  otherwise  ineligible  to  participate  in  U.S.  federal  procurement  and  non-procurement  programs,  including  those
produced by the U.S. General Services Administration (GSA).

A  “Convicted  Individual”  or  “Convicted  Entity”  is  an  individual  or  entity,  as
applicable, who has been convicted of a criminal offense that falls within the ambit of 21 U.S.C. §335a (a) or 42 U.S.C.
§1320a - 7(a), but has not yet been excluded, debarred, suspended or otherwise declared ineligible.

(iv)

11.2
Effective Date that:

Organon  Representations  and  Warranties.  Organon  represents  and  warrants  to  ObsEva  as  of  the

(a)

Organon  has  the  full  power,  authority  and  right  to  enter  into  this Agreement  and  to  perform  its
obligations hereunder in accordance with the terms and conditions hereof, and all requisite corporate action has been taken
to authorize Organon's execution, delivery and performance of this Agreement;

(b)

The execution, delivery and performance of this Agreement by Organon does not breach, violate,
contravene  or  constitute  a  default  under  any  contract,  arrangement  or  commitment  to  which  Organon  is  a  party  or  by
which it is bound, or violate any statute, law or regulation or any order, writ, judgement, injunction, decree, determination,
or award of any court, governmental body or administrative or other agency having jurisdiction over Organon;

(c)

All  consents,  approvals  and  authorizations  from  all  governmental  authorities  or  other  Third
Parties required to be obtained by Organon in connection with the execution, delivery and performance of this Agreement
have been obtained;

(d)

it and its Affiliates are not currently, nor are they the subject of a proceeding that could lead to it
or  its Affiliates  becoming,  a  Debarred  Entity,  Excluded  Entity  or  Convicted  Entity.  For  purposes  of  this  provision,  the
definitions in Section 11.1(dd) shall apply; and

(e)

Organon has (either itself or through Third Parties) the ability, capacity, knowledge, resources and
experience to use, import, Develop, register, Manufacture, market, promote, distribute, offer for sale, Commercialize and
otherwise Exploit the Licensed Product in the Field in the Major Markets.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

11.3

Covenants.

(a)

Each Party hereby covenants to the other Party that, in the performance of its obligations under
this  Agreement,  such  Party  shall  comply,  and  shall  cause  its  and  its  Affiliates’  and  sublicensees’  and  its  and  their
employees and subcontractors to comply, with all Applicable Laws, including (i) all Anti-Corruption Laws, (ii) all Privacy
Laws,  (iii)  all  current  governmental  regulations  concerning  GxP,  as  applicable,  and  (iv)  national  and  international
pharmaceutical industry codes of practice.

(b)

Each  Party  hereby  covenants  to  the  other  Party  that  it  and  its  Affiliates’  employees  and
contractors  shall  not,  in  connection  with  the  performance  of  its  obligations  under  this Agreement,  directly  or  indirectly
through Third Parties, pay, promise, or offer to pay, or authorize the payment of, any money or give any promise or offer
to  give,  or  authorize  the  giving  of  anything  of  value  to  a  Public  Official  or  other  person  for  purpose  of  obtaining  or
retaining business for or with, or directing business to, any person, and shall not directly or indirectly promise, offer, or
provide any corrupt payment, gratuity, emolument, bribe, kickback, illicit gift, or hospitality or other illegal or unethical
benefit  to  a  Public  Official  or  any  other  person  in  connection  with  the  performance  of  its  obligations  under  this
Agreement.

(c)

Each Party hereby covenants to the other Party that it shall immediately notify the other Party if
such Party has any information or suspicion that there may be a violation of any Anti-Corruption Laws, any Privacy Laws,
or any other Applicable Laws in connection with its performance of this Agreement or its or its Affiliates’ or sublicensees’
Development, Manufacture, Commercialization or other Exploitation of any Licensed Product.

(d)

Organon  hereby  covenants  to  ObsEva  that  (i)  it  and  its Affiliates  shall,  at  all  times  during  the
Term, maintain and enforce a compliance and ethics program containing adequate systems, policies and procedures for the
detection,  investigation,  documentation,  and  remediation  of  any  allegations,  reports  or  findings  related  to  a  potential
violation of Applicable Laws, including Anti-Corruption Laws, with respect to the Licensed Products and payments and
activities under this Agreement, (ii) such policies and procedures will set out rules governing interactions with healthcare
providers,  Public  Officials,  the  engagement  of  Third  Parties,  and  where  appropriate,  conducting  due  diligence,  and  the
investigation,  documentation  and  remediation  of  any  allegations,  reports  or  findings  related  to  a  potential  violation  of
Applicable  Laws,  and  (iii)  Organon  shall  comply  and  shall  cause  its  and  its  Affiliates’  employees  and  contractors  to
comply with all such policies and procedures in connection with the performance of its obligations under this Agreement.

(e)

ObsEva hereby covenants to Organon that it shall, at all times during the Term, maintain a Code
of Business Conduct and Ethics approved by its Board of Directors of a scope substantially equivalent to, and in any event
no less stringent than, ObsEva’s Code of Business Conduct and Ethics that is in effect as of the Effective Date and, in the
performance  of  its  obligations  under  this  Agreement,  ObsEva  shall  comply  and  shall  require  its  and  its  Affiliates’
employees and contractors to comply with such Code of Business Conduct and Ethics.

(f)

During  the  Term,  ObsEva  will  not  enter  into  any  assignment,  transfer,  license,  conveyance  or
encumbrance of, or otherwise assign, transfer, license, convey or encumber, its right, title, or interest in or to the Licensed
Technology or grant to any Person any such right, title, or interest, in each case that is inconsistent with the rights and
licenses granted to Organon under this Agreement.

(g)

During  the  Term,  Organon  and  it  and  its Affiliates  will  not  knowingly  use  in  any  capacity,  in

connection with the obligations to be performed under this Agreement, any person who is a

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Debarred  Individual,  Excluded  Individual  or  a  Convicted  Individual.    For  purposes  of  this  provision,  the  definitions  in
Section 11.1(dd) shall apply.

(h)

[*]

(i)

Within [*], ObsEva will, together with Organon, negotiate with Merck Serono to enter into a side
letter agreement or other agreement to amend Section 6.1 of the Merck Serono Agreement in order to permit disclosures
of Merck Serono Confidential Information consistent with the terms of Section 10.3(f) of this Agreement (excluding the
proviso therein), and following execution of such an agreement between ObsEva and Merck Serono, the Parties will enter
into an amendment to this Agreement to amend applicable terms of Article 10, including to remove or amend the proviso
in Section 10.3(f).

11.4

Disclaimer.    EXCEPT  FOR  THE  EXPRESS  WARRANTIES  SET  FORTH  IN  THIS  AGREEMENT,
EACH  PARTY  EXPRESSLY  DISCLAIMS ANY AND ALL  WARRANTIES  OF ANY  KIND,  WHETHER  EXPRESS,
IMPLIED,  OR  STATUTORY,  INCLUDING  WARRANTIES  OF  DESIGN,  MERCHANTABILITY,  FITNESS  FOR  A
PARTICULAR  PURPOSE,  NONINFRINGEMENT  OF  THE  INTELLECTUAL  PROPERTY  RIGHTS  OF  THIRD
PARTIES,  OR  ARISING  FROM  A  COURSE  OF  DEALING,  USAGE,  OR  TRADE  PRACTICES,  IN  ALL  CASES
WITH  RESPECT  THERETO.    NEITHER  PARTY  MAKES  ANY  REPRESENTATION  OR  WARRANTY,  EITHER
EXPRESS OR IMPLIED, THAT ANY OF THE DEVELOPMENT, MANUFACTURING, OR COMMERCIALIZATION
EFFORTS WITH REGARD TO ANY LICENSED COMPOUND OR LICENSED PRODUCT WILL BE SUCCESSFUL.

12.

INDEMNIFICATION

12.1

Indemnification  by  Organon.    Organon  shall  defend,  indemnify,  and  hold  harmless  ObsEva  and  its
Affiliates  and  their  respective  directors,  officers,  employees,  and  agents  (each,  an  “ObsEva  Indemnitee”)  from  and
against any and all liabilities, expenses, and losses, including reasonable legal expenses and attorneys’ fees (collectively,
“Losses”),  to  which  any  ObsEva  Indemnitee  may  become  subject  as  a  result  of  any  claim,  demand,  action,  or  other
proceeding by any Third Party (each, a “Claim”) to the extent such Losses arise out of:

(a)

the  Development,  use,  Manufacture,  Commercialization,  or  other  Exploitation  of  any  Licensed

Compound or Licensed Product by Organon or its Affiliates or Sublicensees [*];

(b)

the negligence or willful misconduct of any Organon Indemnitee; or

(c)
in this Agreement;

the breach by Organon of any warranty, representation, covenant, or agreement made by Organon

except, in each case (a)-(c), to the extent such Losses arise out of any activities set forth in Section 12.2 for which ObsEva
is obligated to indemnify any Organon Indemnitee under Section 12.2.

12.2

Indemnification  by  ObsEva.    ObsEva  shall  defend,  indemnify,  and  hold  harmless  Organon  and  its
Affiliates  and  their  respective  directors,  officers,  employees,  and  agents  (each,  an  “Organon  Indemnitee”)  from  and
against any and all Losses to which any Organon Indemnitee may become subject as a result of any Claim to the extent
such Losses arise out of:

(a)

the negligence or willful misconduct of any ObsEva Indemnitee;

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(b)
in this Agreement;

the breach by ObsEva of any warranty, representation, covenant, or agreement made by ObsEva

(c)

the  Development  or  Manufacture  of  the  Licensed  Products  or  Licensed  Compounds  by  or  on

behalf of, or for, ObsEva or its Affiliates anywhere in the world prior to the Effective Date; or

(d)

the  Development,  Commercialization,  Manufacture,  or  other  Exploitation  of  any  Licensed
Products  or  Licensed  Compound  by  or  on  behalf  of,  or  for,  ObsEva  or  its Affiliates  or  (sub)licensees  anywhere  in  the
world  after  the  Term,  for  clarity,  excluding  Development,  Commercialization,  Manufacture,  or  other  Exploitation
conducted by, on behalf of, or for Organon or its Affiliates or Sublicensees as permitted hereunder;

except,  in  each  case  (a)-(d),  to  the  extent  such  Losses  arise  out  of  any  activities  set  forth  in  Section  12.1  for  which
Organon is obligated to indemnify any ObsEva Indemnitee under Section 12.1.

12.3

Indemnification Procedure.  

(a)

The Party claiming indemnity under this Article 12 (the “Indemnified Party”) shall give written
notice  to  the  Party  from  whom  indemnity  is  being  sought  (the  “Indemnifying  Party”)  promptly  after  learning  of  such
Claim.

(b)

The  Indemnified  Party  shall  provide  the  Indemnifying  Party  with  reasonable  assistance,  at  the
Indemnifying  Party’s  expense,  in  connection  with  the  defense  of  the  Claim  for  which  indemnity  is  being  sought.    The
Indemnified  Party  may  participate  in  and  monitor  such  defense  with  counsel  of  its  own  choice  at  its  own  expense;
provided, however, that the Indemnifying Party shall have the right to assume and conduct the defense of the Claim with
counsel of its choice.  

(c)

The  Indemnifying  Party  shall  not  settle  any  Claim  without  the  prior  written  consent  of  the
Indemnified Party, unless the settlement involves only the payment of money, no admission of wrong-doing or fault by the
Indemnified  Party,  and  no  restriction  on  the  future  actions  or  activities  of  the  Indemnified  Party.    So  long  as  the
Indemnifying  Party  is  actively  defending  the  Claim  in  good  faith,  the  Indemnified  Party  shall  not  settle  such  Claim
without the prior written consent of the Indemnifying Party.

(d)

If  the  Indemnifying  Party  does  not  assume  and  conduct  the  defense  of  the  Claim  as  provided
above, (i) the Indemnified Party may defend against and consent to the entry of any judgment, or enter into any settlement
with respect to, the Claim in any manner the Indemnified Party may deem reasonably appropriate (and the Indemnified
Party  need  not  consult  with,  or  obtain  any  consent  from,  the  Indemnifying  Party  in  connection  therewith),  and  (ii)  the
Indemnifying Party will remain responsible to indemnify the Indemnified Party as provided in this Article 12.

12.4

Insurance.    Each  Party,  at  its  own  expense,  shall  maintain  insurance  (or  self-insurance),  including
commercial general liability insurance, product liability insurance and other appropriate insurance, in amounts consistent
with sound business practice and reasonable in light of its obligations under this Agreement.  Each Party shall maintain
such  insurance  for  the  period  commencing  on  the  Effective  Date  until  [*]  after  expiration  or  termination  of  this
Agreement.  Each Party shall provide a certificate of insurance evidencing such coverage to the other Party upon request.
 It is understood that such insurance shall not be construed to create any limit of either Party’s obligations or liabilities
with respect to its indemnification obligations under this Agreement.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

12.5

Limitation  of  Liability.    EXCEPT  FOR  DAMAGES  THAT  (A) ARISE  IN  CONNECTION  WITH A
PARTY’S  (I) WILLFUL  MISCONDUCT  OR  FRAUD,  (II)  BREACH  OF  ITS  OBLIGATIONS  UNDER ARTICLE  10,
[*]  (B)  ARE  SUBJECT  TO  INDEMNIFICATION  UNDER  SECTION  12.1  OR  SECTION  12.2,  NEITHER  PARTY
SHALL  BE  LIABLE  IN  CONTRACT, TORT,  NEGLIGENCE,  BREACH  OF  STATUTORY  DUTY,  OR  OTHERWISE
FOR ANY SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES OR FOR LOSS OF PROFITS SUFFERED BY
THE  OTHER  PARTY  (OR  ITS  AFFILIATES  OR  (SUB)LICENSEES),  REGARDLESS  OF  ANY  NOTICE  OF  THE
POSSIBILITY OF SUCH DAMAGES.

13.

TERM AND TERMINATION

13.1

Term.  

(a)

This Agreement shall commence on the Effective Date and, unless terminated earlier as provided
in  this  Article  13,  shall  continue  in  force  and  effect  until  the  date  of  expiration  of  the  last  Royalty  Term  for  the  last
Licensed Product (the “Term”).

(b)
free and irrevocable.

Following the expiration of the Term, the grants in Section 2.1 shall become fully-paid, royalty-

13.2

Termination for Breach.

(a)

Either Party may terminate this Agreement in its entirety at any time upon written notice to the
other Party if the other Party is in material breach of this Agreement and such material breach is not cured within [*] (in
the case of a payment breach) or [*] days (in the case of all other breaches) after written notice thereof is delivered to the
defaulting or breaching Party; provided, however, if such breach (other than a payment breach) is not reasonably curable
within  [*]  days  and  if  the  breaching  Party  is  making  a  bona  fide  effort  to  cure  such  breach,  such  termination  shall  be
delayed for a time period to be agreed by the Parties in order to permit the breaching Party a reasonable period of time to
cure such breach (but in no event will such additional time period be more than [*] days).  Any notice provided pursuant
to  this  Section  13.2  shall  identify  with  particularity  the  alleged  breach  and  state  the  non-breaching  Party’s  intent  to
terminate this Agreement if such breach is not cured.

(b)

If the allegedly breaching Party disputes in good faith the allegation that there has been a material
breach,  then  such  Party  may  contest  the  allegation  in  accordance  with  Section  14.3  and,  provided  that  the  allegedly
breaching Party gives written notice to the other Party of such dispute and initiates dispute resolution procedures under
Section  14.3  during  the  applicable  cure  period,  such  cure  period  will  toll  upon  the  initiation  of  such  dispute  resolution
procedures.    If,  as  a  result  of  such  dispute  resolution  process,  it  is  finally  determined  pursuant  to  Section  14.3  that  the
breaching  Party  committed  a  material  breach  of  this Agreement,  then  the  applicable  cure  period  will  resume  and  if  the
breaching Party does not cure such material breach within the remainder of such cure period (as such cure period may be
extended  pursuant  to  Section  13.2(a)),  then  this  Agreement  will  terminate  effective  as  of  the  expiration  of  such  cure
period.  This Agreement will remain in full force and effect during the pendency of any such dispute resolution proceeding
and the applicable cure period.  Any such dispute resolution proceeding will not suspend any obligations of either Party
hereunder  and  each  Party  will  use  reasonable  efforts  to  mitigate  any  damages.  If,  as  a  result  of  such  dispute  resolution
proceeding, it is determined that the breaching Party did not commit such material breach (or such material breach was
cured in accordance with Section 13.2(a)), then no termination of this Agreement will be effective, and this Agreement
will continue in full force and effect.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

13.3

Termination by ObsEva.

(a)

Termination  for  Patent  Challenge.    In  the  event  that  Organon  or  any  of  its  Affiliates  or
Sublicensees, anywhere in the world, institutes, prosecutes or otherwise participates in (or in any way aids any Third Party
in  instituting,  prosecuting  or  participating  in),  at  law  or  in  equity  or  before  any  administrative  or  regulatory  body,
including the U.S. Patent and Trademark Office or its foreign counterparts, any claim, demand, action or cause of action
for  declaratory  relief,  damages  or  any  other  remedy,  or  for  an  enjoinment,  injunction  or  any  other  equitable  remedy,
including  any  interference,  reexamination,  opposition  or  any  similar  proceeding,  alleging  that  any  claim  in  a  Licensed
Patent is invalid, unenforceable or otherwise not patentable (“Patent Challenge”), [*].

(b)

Termination for [*] Commercialization. [*].

13.4

Termination by Organon.  

(a)

For  Cause.  Organon  may  terminate  this Agreement  in  its  entirety  effective  immediately  upon
written notice to ObsEva if Organon reasonably believes in good faith, after due inquiry and in a manner consistent with
Organon’s  then-current  decision-making  process  with  respect  to  such  a  determination,  that  Development  or
Commercialization  of  Licensed  Compounds  and  Licensed  Products  should  be  terminated  due  to  a  Safety  Reason;
provided that [*].

(b)

For  Convenience.  Organon  shall  have  the  right  to  terminate  this Agreement  in  its  entirety,  for
any or no reason, at any time prior to First Commercial Sale of the first Licensed Product, upon [*] prior written notice to
ObsEva.

13.5

No Immediate Termination on Bankruptcy. To the extent permitted by Applicable Law, all rights and
licenses granted pursuant to this Agreement by a Party to the other Party shall not be terminated upon a Bankruptcy Event
of  such  Party  or  its Affiliates,  and  each  Party  hereby  claims  the  benefit  of  any Applicable  Law  which  may  enable  it  to
prevent such termination, provided that such a Bankruptcy Event shall not bring material adverse effect to the transactions
contemplated hereunder. In the event of a Bankruptcy Event of Organon, Organon shall, during the [*] period following
such Bankruptcy Event, seek to enter into one or several sublicenses for each of [*]. Any such sublicense shall be subject
to  the  terms  of  Section  2.2.  If,  upon  expiry  of  the  [*]  period  Organon  has  failed  to  enter  into  a  definitive  sublicense
agreement  [*],  ObsEva  shall  have  the  right  to  terminate  this Agreement  with  respect  to  [*]  immediately  upon  written
notice. In the event of a termination of this Agreement [*] by ObsEva pursuant to this Section 13.5, all rights and licenses
granted by ObsEva hereunder (i) shall [*] and (ii) shall [*].  

13.6

Effects of Termination.  

(a)

General  Consequences.  In  the  event  of  termination  of  this Agreement  for  any  reason  prior  to
expiration  of  the  Term,  except  for  the  surviving  provisions  set  forth  in  this  Section  13.6  or  Section  13.11,  the  rights,
licenses and obligations of the Parties hereunder shall terminate and be of no further force or effect as of the effective date
of such termination and the terms of this Section 13.6 shall apply.

(b)

Confidential Information. Upon termination of this Agreement in its entirety, either Party may
request in writing, and the other Party shall either promptly return to the first Party, or as soon as reasonably practicable
delete  or  destroy,  all  relevant  records  and  materials  in  such  Party’s  possession  or  control  containing  Confidential
Information  of  the  other  Party  to  which  such  first  Party  does  not  retain  rights  under  the  surviving  provisions  of  this
Agreement; provided that a Party may keep one copy

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

of  such  materials  for  legal  archival  purposes  subject  to  continuing  confidentiality  obligations.  Notwithstanding  the
foregoing,  such  other  Party  also  shall  be  permitted  to  retain  such  additional  copies  of  or  any  computer  records  or  files
containing such Confidential Information that have been created solely by such Party’s automatic archiving and back-up
procedures, to the extent created and retained in a manner consistent with such other Party’s standard archiving and back-
up procedures, but not for any other use or purpose.

(c)

Sublicenses. In the event of termination of this Agreement prior to expiration of the Term, at the
request of a Sublicensee within [*] days after the effective date of termination, provided such Sublicensee is not then in
default  of  its  obligations  under  its  sublicense  agreement,  such  sublicense  agreement  will  survive  in  accordance  with  its
terms for such period of [*] days during which period ObsEva shall negotiate and enter into a continuing license with such
Sublicensee granting such Sublicensee rights under the Licensed Technology (or the subset of the Licensed Technology
that was sublicensed to such Sublicensee) on reasonable terms that (i) do not impose any additional obligations on ObsEva
to those obligations contained in this Agreement and (ii) fully preserve ObsEva’s rights under this Agreement, including
ObsEva’s rights to receive payments under Article 7 on terms that are at least as favorable as those herein.

(d)

Commercial Inventory.  In the event of termination of this Agreement by Organon pursuant to
Section  13.2  prior  to  expiration  of  the  Term  and  after  First  Commercial  Sale  of  a  Licensed  Product,  Organon  and  its
Affiliates  shall  be  entitled,  during  the  [*]  period  following  the  effective  date  of  termination,  to  sell  any  commercial
inventory of Licensed Products which remains on hand as of the effective date of the termination, so long as Organon pays
to ObsEva the royalties applicable to such post-termination sales in accordance with the terms and conditions set forth in
this Agreement.  In  the  event  of  termination  of  this Agreement  prior  to  expiration  of  the  Term  by  ObsEva  pursuant  to
Section 13.2 or Section 13.3 or by Organon pursuant to Section 13.4(b), any commercial inventory of Licensed Products
which remains on hand as of the effective date of the termination shall be offered for sale to ObsEva, to the extent licensed
under Section 13.6(f), at a price to be mutually agreed upon between the Parties in good faith [*]; provided that, if ObsEva
elects  not  to  purchase  the  entire  commercial  inventory,  Organon  shall  be  entitled,  for  a  period  of  [*],  to  sell  any
unpurchased commercial inventory of Licensed Products so long as Organon pays to ObsEva the royalties applicable to
such post-termination sales in accordance with the terms and conditions set forth in this Agreement.

(e)

License  to  Organon.    In  the  event  of  termination  of  this Agreement  prior  to  expiration  of  the
Term, the license granted by ObsEva to Organon under Section 2.1 shall automatically terminate, provided that ObsEva
grants to Organon, its Affiliates and Sublicensees (as the case may be) any licenses or rights of reference to any Licensed
Technology reasonably necessary for Organon, its Affiliates or Sublicensees to exercise its rights or fulfill its obligations
set forth in this Section 13.6.

(f)

Reversion License. In the event of termination of this Agreement prior to the expiration of the
Term by ObsEva pursuant to Section 13.2 or Section 13.3 or by Organon pursuant to Section 13.4(b), Organon shall, and
hereby does, grant to ObsEva, effective on the effective date of termination, [*] (the license grants under clauses (i) and
(ii),  the  “Reversion  Licenses”).  In  all  cases,  the  Reversion  Licenses  exclude  [*]. The  royalty(ies)  to  be  paid  under  the
Reversion Licenses shall be commercially reasonable taking into account the relative value of the Organon Improvement
Technology  and  the  Organon  Technology.  If  the  Parties  are  unable  to  agree  upon  such  commercially  reasonable
royalty(ies)  within  [*]  days  after  the  effective  date  of  termination  (or  such  longer  period  as  the  Parties  may  agree)
(“Reversion Royalty Dispute”), the Reversion Royalty Dispute shall be resolved in accordance with Section 14.3. With
respect  to  any  Organon  Technology  that  is  licensed  by  Organon  from  Third  Parties,  (A)  Organon  shall  notify  ObsEva
(which notice shall describe the terms and conditions of the Third Party

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

agreement that are applicable to the grant to ObsEva of the Reversion License under such Organon Technology or to the
exercise  of  such  Reversion  License  by  ObsEva  or  any  of  its Affiliates  or  sublicensees,  including  payment  terms),  (B)
ObsEva  shall  be  responsible  for  (x)  making  any  payments  (including  royalties,  milestones  and  other  amounts)  that  are
payable by Organon to the Third Parties under any Third Party agreements with respect to and allocable to the Organon
Technology  that  is  the  subject  of  such  Reversion  License  by  making  such  payments  directly  to  Organon  and,  in  each
instance,  ObsEva  shall  make  the  requisite  payments  to  Organon  and  provide  the  necessary  reporting  information  to
Organon in sufficient time to enable Organon to comply with its obligations under such Third Party agreements (provided
Organon has notified ObsEva of such obligations), and (y) complying with any other obligations included in such Third
Party  agreements  that  are  applicable  to  the  grant  to  ObsEva  of  the  Reversion  License  under  the  applicable  Organon
Technology  or  to  the  exercise  of  such  Reversion  License  by  ObsEva  or  any  of  its Affiliates  or  sublicensees  (provided
Organon  has  notified  ObsEva  of  such  obligations),  and  the  granting  by  ObsEva  of  a  sublicense  under  the  Reversion
Licenses  shall  not  relieve  ObsEva  of  its  obligations  under  this  subclause  (B);  and  (C)  Organon  shall  timely  pay  and
provide to such Third Parties all payments and reports made or provided by ObsEva under subclause (B).

(g)

Assignments.  In the event of termination of this Agreement prior to expiration of the Term by
ObsEva pursuant to Section 13.2 or Section 13.3 or by Organon pursuant to Section 13.4(b), Organon shall promptly (i)
where permitted by Applicable Law [*] then owned by Organon or its Affiliates and in its or their name solely relating to
the  Licensed  Compounds  or  Licensed  Products  in  the  Territory  that  are  subject  of  the  license  grant  in  Section  13.6(f),
including  [*],  (ii)  [*],  (iii)  at  ObsEva’s  option,  transfer  to  ObsEva  any  and  all  chemical,  biological  and  other  physical
materials  solely  relating  to  or  comprising  the  Licensed  Products  that  are  subject  of  the  license  grant  in  Section  13.6(f),
including  clinical  supplies  of  Licensed  Products,  that  are  in  Organon’s  or  its Affiliates’  possession  or  control,  and  (iv)
assign  to  ObsEva  or  its  designee  all  of  Organon’s  and  its  Affiliates’  rights,  title,  and  interest  in  and  to  all  Product
Trademarks and all domain names associated with the Product Trademarks, in each case solely relating to the Licensed
Products in the Territory that are subject of the license grant in Section 13.6(f) (if any). [*].

(h)

Ongoing Clinical Trials. Unless expressly prohibited by any Regulatory Authority or Applicable
Law,  if  any  Clinical Trials  involving  Licensed  Products  sponsored  by  Organon  or  its Affiliate  or  Sublicensee  are  being
conducted by Organon as of the effective date of termination, at ObsEva’s reasonable written request made within [*] days
after the effective date of termination (i) Organon shall, and shall cause its Affiliates and Sublicensees to, wind down such
Clinical  Trials  in  accordance  with  Applicable  Law  (provided  that  such  winding  down  would  not  be  inconsistent  with
Organon’s ethical obligations or reasonable internal policies), or (ii) [*].

(i)

Organon  Improvement  Know-How.  In  the  event  of  termination  of  this  Agreement  prior  to
expiration of the Term by ObsEva pursuant to Section 13.2 or Section 13.3 or by Organon pursuant to Section 13.4(b),
Organon shall disclose and transfer to ObsEva (to the extent included in the Reversion Licenses) (i) all Organon Know-
How  and  (ii)  any  Organon  Improvement  Know-How  that  is  necessary  to  Develop,  have  Developed,  Manufacture,  have
Manufactured, Commercialize or otherwise Exploit any Licensed Compound or Licensed Product.

(j)

Supply Obligation. Unless otherwise agreed by both Parties, Organon will have no obligation to
Manufacture  or  supply  to  ObsEva  Licensed  Compound  or  Licensed  Product  for  ObsEva’s  continued  Development  and
Commercialization of such Licensed Compounds and Licensed Products.

13.7

Transition Agreement. In the event of termination of this Agreement in its entirety by ObsEva pursuant
to Section 13.2 or Section 13.3 or by Organon pursuant to Section 13.4(b), unless ObsEva informs Organon that ObsEva
will not (itself or with or through its Affiliates or a Third Party) continue

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Development,  Commercialization  or  other  Exploitation  of  any  Licensed  Product  in  the  Territory,  ObsEva  and  Organon
shall negotiate in good faith the terms and conditions of a written transition agreement pursuant to which Organon and
ObsEva will effectuate and coordinate a smooth and efficient transition of relevant obligations and rights to ObsEva as
reasonably necessary for ObsEva to exercise its license pursuant to Section 13.6(f) with respect to the Licensed Products
after termination of this Agreement as and to the extent set forth in this Article 13, which terms and conditions shall be
consistent with those set forth in this Article 13 and include duration and full time equivalent limits for the services to be
provided to the extent not set forth in this Article 13. [*].

13.8

Termination  for  Safety  Reasons.  Notwithstanding  the  foregoing,  if  this  Agreement  is  terminated  by

Organon pursuant to Section 13.4(a), [*].

13.9

Remedies. Except as otherwise expressly provided herein, termination of this Agreement in accordance

with the provisions hereof shall not limit remedies that may otherwise be available in law or equity.

13.10 Milestone Payments. Notwithstanding anything to the contrary contained herein, if notice of termination
of  this  Agreement  is  given  prior  to  achievement  of  a  given  milestone  set  forth  in  Section  7.2,  Organon  shall  not  be
obligated to make any milestone payment in Section 7.2 to ObsEva with respect to any milestone achieved following the
notice of such termination; provided that, [*].

13.11 Survival; Accrued Rights.  The obligations and rights of the Parties under the following provisions of
this Agreement  shall  survive  expiration  or  termination  of  this Agreement:  2.6,  8.1  (with  respect  to  payment  obligations
accruing during the Term), 8.2 through 8.5, 9.1, 11.4, 13.6 through 13.11, 14.2, 14.3, 14.4, 14.5, 14.7, 14.9, 14.10, 14.11,
14.12, 14.14, 14.15 and Article 1, Article 10 and Article 12.  

In any event, expiration or termination of this Agreement will not relieve the Parties of any liability that accrued hereunder
prior to the effective date of such expiration or termination nor preclude either Party from pursuing all rights and remedies
it may have hereunder or at law or in equity with respect to any breach of this Agreement, nor prejudice either Party’s
right  to  obtain  performance  of  any  obligation  that  accrued  hereunder  prior  to  the  effective  date  of  such  expiration  or
termination (including the rights to receive payments accrued or due prior to the effective date of such termination).  

14.

GENERAL PROVISIONS

14.1

Change of Control of ObsEva.

(a)

ObsEva (or its successor) shall provide Organon with written notice of any Change of Control of

ObsEva within [*] following the closing date of such transaction.

(b)

In the event of a Change of Control of ObsEva: all Licensed Technology Controlled by ObsEva
immediately before such Change of Control shall continue to be Licensed Technology but ObsEva and its Affiliates will
not be deemed to “Control” any Know-How or Patent that, prior to the closing date of such Change of Control is owned,
in-licensed or otherwise controlled by a Third Party (and such Third Party’s Affiliates that existed prior to such closing
date),  that  becomes  an Affiliate  of  ObsEva  after  the  Effective  Date  as  a  result  of  such  Change  of  Control  unless  such
Know-How or Patent was so included in or subject to this Agreement prior to the closing date of such Change of Control
or  is  used  by  such  acquired  Party  or  any  of  its  Affiliates  after  the  closing  date  of  such  Change  of  Control  in  the
Development, Manufacture, Commercialization or other Exploitation of Licensed Products pursuant to this

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Agreement, in which case such Know-How or Patent will be “Controlled” by ObsEva for purposes of this Agreement.

(c)

In the event of a Change of Control of ObsEva or other assignment of this Agreement by ObsEva
to  a  Third  Party  pursuant  to  Section  14.9(a)  that  involves  [*],  then  (i)  at  the  request  of  Organon,  (x)  the  JAC  shall  be
disbanded, (y) any or all provisions of this Agreement providing for any delivery by Organon to ObsEva of information
relating to activities contemplated by this Agreement shall terminate, save only for the provisions of Section 8.1, and (z)
ObsEva and its acquirer in the Change of Control will adopt reasonable procedures to be agreed upon in writing to prevent
disclosure  of  Confidential  Information  of  Organon  to  such  acquirer;  and  (ii)  any  information,  documents  or  reports
provided by Organon that ObsEva is otherwise required to provide to Merck Serono pursuant to this Agreement shall be
provided directly to Merck Serono by Organon.  As used herein, “Change of Control” means, with respect to ObsEva, a
transaction  with  a  Third  Party(ies)  involving,  (A)  the  acquisition,  merger  or  consolidation,  directly  or  indirectly,  of
ObsEva, and, immediately following the consummation of such transaction, the shareholders or other owners of ObsEva,
immediately  prior  thereto  hold,  directly  or  indirectly,  as  applicable,  shares  of  capital  stock  of  the  surviving  company
representing less than fifty percent (50%) of the outstanding shares of such surviving or continuing company, (B) the sale
of  all  or  substantially  all  of  the  assets  or  business  of  ObsEva,  or  (C)  a  Person,  or  group  of  Persons  acting  in  concert,
acquire more than fifty percent (50%) of the voting equity securities or management control of ObsEva.

(d)

For  clarity,  a  Change  of  Control  does  not  include  (i)  an  internal  consolidation,  merger,  share
exchange or other reorganization of ObsEva between it and one or more of its Affiliates, (ii) a sale of assets, merger, or
other transaction effected with an Affiliate of ObsEva exclusively for the purpose of changing domicile of ObsEva, (iii) a
transfer or assignment of any Patents or other intellectual property rights to a wholly-owned subsidiary of ObsEva; or (iv)
any public offering of ObsEva’s equity securities or other issuance of stock by ObsEva in an equity financing.

14.2 Governing  Law.  This  Agreement,  and  all  questions  regarding  the  existence,  validity,  interpretation,
breach, or performance of this Agreement, shall be governed by, and construed and enforced in accordance with, the laws
of the State of New York.

14.3

Dispute Resolution. Any dispute between the Parties in connection with or relating to this Agreement or
any  document  or  instrument  delivered  in  connection  herewith  (a  “Dispute”)  shall  first  be  referred  to  the  Executive
Officers of the Parties, who shall confer in good faith on the resolution of the Dispute.  Any final decision mutually agreed
upon by the Executive Officers shall be conclusive and binding on the Parties.  If the Executive Officers are not able to
agree on the resolution of a Dispute within [*] (or such other period of time as mutually agreed by the Executive Officers)
after such Dispute was first referred to them, then such Dispute shall be resolved by binding arbitration in accordance with
the Rules of Arbitration of the International Chamber of Commerce in force on the date on which the Notice of Arbitration
is submitted (the “Rules”). The arbitration will be conducted by a panel of three (3) arbitrators appointed in accordance
with the Rules; provided that each Party will, [*] after the institution of the arbitration proceedings, appoint an arbitrator,
and such arbitrators will together, within [*], select a third (3rd) arbitrator as the chairperson of the arbitration panel.  The
seat of the arbitration shall be Geneva. The arbitral proceedings shall be conducted in English. Except as may be required
by Applicable  Law  or  to  protect  or  pursue  a  legal  right,  neither  a  Party  nor  any  arbitrator  may  disclose  the  existence,
content or results of any arbitration hereunder without the prior written consent of both Parties. Each Party shall bear its
own legal costs for its counsel and other expenses, and the Parties shall equally share the costs of the arbitration; provided
that the arbitral tribunal shall have the discretion to provide that the losing Party is responsible for all or a portion of such
arbitration  and  legal  costs,  and  in  such  case  the  arbitral  award  will  so  provide.   The  arbitrators  shall  have  no  power  to
award damages excluded pursuant to Section 12.5.  The

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

arbitral award shall be final and binding on the Parties and the Parties shall carry out the award without delay.  Judgment
on the award so rendered may be entered in any court of competent jurisdiction. Notwithstanding anything to the contrary
herein,  nothing  in  this  Section  14.3  shall  preclude  either  Party  from  seeking  interim  or  provisional  relief,  including  a
temporary restraining order, preliminary injunction, or other interim equitable relief concerning a Dispute in any court of
competent jurisdiction before or after the initiation of an arbitration as set forth herein, if necessary to protect the interests
of such Party. The Parties agree that any dispute concerning the propriety of the commencement of the arbitration or the
scope  and  applicability  of  the  agreement  to  arbitrate  shall  be  determined  by  the  arbitrators.    Notwithstanding  the
foregoing,  the  Parties  agree  that  a  Reversion  Royalty  Dispute  shall  be  resolved  by  arbitration  administered  by  the
International  Centre  for  Dispute  Resolution  in  accordance  with  its  International  Arbitration  Rules  and  the  Final  Offer
Supplementary Arbitration Rules, and the number of arbitrators in such arbitration shall be one (1).

14.4

Entire  Agreement;  Modification.    This  Agreement,  including  the  Schedules  hereto,  is  both  a  final
expression  of  the  Parties’  agreement  and  a  complete  and  exclusive  statement  with  respect  to  all  of  its  terms.    This
Agreement  supersedes  all  prior  and  contemporaneous  agreements  and  communications,  whether  oral,  written,  or
otherwise,  concerning  any  and  all  matters  contained  herein  (including  [*].    This Agreement  may  only  be  modified  or
supplemented in a writing expressly stated for such purpose and signed by the Parties to this Agreement.

14.5

Relationship Between the Parties.  The Parties’ relationship, as established by this Agreement, is solely
that  of  independent  contractors.    This  Agreement  does  not  create  any  partnership,  joint  venture,  or  similar  business
relationship between the Parties.  Neither Party is a legal representative of the other Party, and neither Party can assume or
create  any  obligation,  representation,  warranty,  or  guarantee,  express  or  implied,  on  behalf  of  the  other  Party  for  any
purpose whatsoever.

14.6

Performance  by Affiliates.    Organon  may  discharge  any  obligations  and  exercise  any  right  under  this
Agreement through any of its Affiliates, and such Organon Affiliates are expressly granted certain rights herein; provided
that each such Affiliate shall be bound by the corresponding obligations of Organon and, subject to an assignment to such
Affiliate pursuant to Section 14.9, Organon shall remain liable hereunder for the prompt payment and performance of all
their respective obligations hereunder.

14.7 Waiver.  The waiver by either Party of any right under this Agreement or of the failure to perform or of a
breach by the other Party shall not be deemed a waiver of any other right hereunder or of any other breach or failure by
such other Party whether of a similar nature or otherwise.  Any waiver by a Party of a particular term or condition will be
effective  only  if  set  forth  in  a  written  instrument  duly  executed  by  or  on  behalf  of  the  Party  waiving  such  term  or
condition.

14.8

Further  Assurances.  Each  Party  shall  duly  execute  and  deliver,  or  cause  to  be  duly  executed  and
delivered, such further instruments and do and cause to be done such further acts and things, including the filing of such
assignments, agreements, documents, and instruments, as may be necessary or as the other Party may reasonably request
in connection with this Agreement or to carry out more effectively the provisions and purposes hereof, or to better assure
and confirm unto such other Party its rights and remedies under this Agreement.

14.9

Assignment.  Except as expressly provided herein, neither this Agreement nor any rights or obligations
hereunder may be assigned or otherwise transferred by either Party, in whole or in part, without the prior written consent
of the other Party (which consent shall not be unreasonably withheld or delayed); except that each Party may assign or
otherwise transfer this Agreement and its rights and obligations hereunder without the other Party’s consent as follows:

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(a)

in connection with a sale of all or substantially all of the business or assets of such Party to which

this Agreement relates, whether by merger, consolidation, divesture, sale of stock, sale of assets, or otherwise; or

(b)

to  an Affiliate,  provided  that  if  the  entity  to  which  this Agreement  is  assigned  ceases  to  be  an
Affiliate  of  the  assigning  Party,  this  Agreement  shall  be  automatically  assigned  back  to  the  assigning  Party  or  its
successor.  

The rights and obligations of the Parties under this Agreement shall be binding upon and inure to the benefit of the
successors and permitted assigns of the Parties specified above, and the name of a Party appearing herein will be deemed
to include the name of such Party’s successors and permitted assigns to the extent necessary to carry out the intent of this
Section 14.9.  Any assignment not in accordance with this  Section 14.9 shall be null and void and of no legal force or
effect.

14.10 Accounting Standards.  Each Party shall calculate all amounts hereunder and perform other accounting
procedures required hereunder applicable to it in accordance with the Accounting Standards normally used by such Party
to calculate its financial position, in each case consistently applied by such Party.

14.11 Severability.    If,  for  any  reason,  any  part  of  this  Agreement  is  adjudicated  invalid,  unenforceable,  or
illegal by a court of competent jurisdiction, such adjudication shall not affect or impair, in whole or in part, the validity,
enforceability, or legality of any remaining portions of this Agreement.  The Parties will in such an instance use their best
efforts to replace the invalid, unenforceable, or illegal provision(s) with valid, enforceable, and legal provision(s) that best
implement the original intent of the Parties and purposes of this Agreement.

14.12 Notices.  Any notice to be given under this Agreement must be in writing and delivered either in person,
or  by  registered  or  certified  mail  (postage  prepaid)  requiring  return  receipt,  or  by  internationally  recognized  overnight
delivery service, in each case to the Party to be notified at its address given below, or at any other address such Party may
designate by prior written notice to the other in accordance with this Section 14.12.  Notice shall be deemed sufficiently
given  for  all  purposes  upon  the  earliest  of:  (a)  if  personally  delivered,  the  date  of  actual  receipt;  (b)  if  delivered  by
registered  or  certified  mail,  five  (5)  Business  Days  after  the  date  of  postmark;  or  (c)  if  delivered  by  overnight  delivery
service, the next day the overnight delivery service regularly makes deliveries.

If to ObsEva, notices must be addressed to:

ObsEva SA
Chemin des Aulx 12,
1228 Plan-Les-Ouates, Switzerland
Attention: Chief Executive Officer

with a copy to:

ObsEva SA
Chemin des Aulx 12,
1228 Plan-Les-Ouates, Switzerland
Attention: Chief Administrative Officer

If to Organon, notices must be addressed to:

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Organon International GmbH
Weystrasse 20,
6006 Lucerne, Switzerland
Attention: [*]

with a copy to:

Organon LLC
30 Hudson Street
33rd Floor
Jersey City, NJ (USA) 07302
Attention: SVP, Head of Business Development
Attention: Officer of the Secretary

14.13 Force Majeure.  Neither Party shall be liable to the other for failure or delay in the performance of any of
its  obligations  under  this  Agreement  for  the  time  and  to  the  extent  such  failure  or  delay  is  caused  by  acts  of  God,
earthquake,  riot,  civil  commotion,  terrorism,  war,  strikes  or  other  labor  disputes,  fire,  flood,  epidemics,  pandemics,  the
spread of infectious diseases, quarantines, failure or delay of transportation, default by suppliers or unavailability of raw
materials,  governmental  acts  or  restrictions  or  any  other  reason  which  is  beyond  the  control  of  the  respective  Party
(“Force Majeure”). A Force Majeure may include reasonable measures affirmatively taken by a Party or its Affiliates to
respond to any epidemic, pandemic, or spread of infectious disease, such as requiring employees to stay home, closures of
facilities, delays of Clinical Trials, or cessation of activities in response to an epidemic or other Force Majeure event, to
the extent such measures cause a failure or delay in the performance of a Party’s obligations under this Agreement. The
Party affected by Force Majeure shall provide the other Party with full particulars thereof as soon as it becomes aware of
the same (including its best estimate of the likely extent and duration of the interference with its activities), and will use
Commercially  Reasonable  Efforts  to  overcome  the  difficulties  created  thereby  and  to  resume  performance  of  its
obligations hereunder as soon as practicable.

14.14

Interpretation.  The headings of clauses contained in this Agreement preceding the text of the sections,
subsections, and paragraphs hereof are inserted solely for convenience and ease of reference only and shall not constitute
any part of this Agreement, or have any effect on its interpretation or construction.  All references in this Agreement to the
singular shall include the plural where applicable.  Unless otherwise specified, references in this Agreement to any Article
shall  include  all  Sections,  subsections,  and  paragraphs  in  such  Article,  references  to  any  Section  shall  include  all
subsections  and  paragraphs  in  such  Section,  and  references  in  this  Agreement  to  any  subsection  shall  include  all
paragraphs in such subsection.  The word “including” and similar words means including without limitation.  The word
“or” means “and/or” unless the context dictates otherwise because the subjects of the conjunction are, or are intended to
be, mutually exclusive.  The words “herein”, “hereof”, and “hereunder” and other words of similar import refer to this
Agreement as a whole and not to any particular Section or other subdivision.  All references to days in this Agreement
mean  calendar  days,  unless  otherwise  specified.   Ambiguities  and  uncertainties  in  this Agreement,  if  any,  shall  not  be
interpreted against either Party, irrespective of which Party may be deemed to have caused the ambiguity or uncertainty to
exist.  This Agreement has been prepared in the English language and the English language shall control its interpretation.
  In  addition,  all  notices  required  or  permitted  to  be  given  hereunder,  and  all  written,  electronic,  oral,  or  other
communications  between  the  Parties  regarding  or  pursuant  to  this Agreement  (including  the  disclosure  of  Know-How,
notices, and reports and documents submitted to the JAC) shall be in the English language.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

14.15 Counterparts; Electronic Signatures.  This Agreement may be executed in any number of counterparts,
each of which shall be deemed an original and all of which taken together shall be deemed to constitute one and the same
agreement.  The Parties agree that execution of this Agreement by industry standard electronic signature software or by
exchanging executed signature pages in .pdf format via e-mail shall have the same legal force and effect as the exchange
of original signatures, and that in any proceeding arising under or related 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.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

{SIGNATURE PAGE FOLLOWS}

IN WITNESS WHEREOF, the Parties hereto have caused this Agreement to be executed and entered into by their duly

authorized representatives as of the Effective Date.

ObsEva SA

Organon International GmbH

By:  /s/ Brian O’Callaghan
Name: Brian O’Callaghan
Title:  Chief Executive Officer

By: /s/ Thomas Morlet
Name: Thomas Morlet
Title: Managing Officer

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

{Signature Page to License Agreement}

Schedule 1.58
Description of Licensed Compounds

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Schedule 1.60
[*] Patents

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Schedule 2.3

[*]

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Schedule 4.5
Existing Inventory

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Schedule 4.6(a)
Existing INDs

[None]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Schedule 5.3(a)
Key Terms of Supply Agreements

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Schedule 8.2
ObsEva Bank Account Information

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Schedule 10.8
Joint Press Release

Organon and ObsEva Enter Global License Agreement to Develop and Commercialize Ebopiprant (OBE022), an
Investigational Agent Being Evaluated as a First-in-Class Treatment for Preterm Labor

Every year, an estimated 15 million babies are born preterm (before 37 completed weeks of gestation)i ; agent is being
studied in an area of significant unmet need

Ad hoc announcement pursuant to Art. 53 LR of the SIX Swiss Exchange

Jersey City, N.J., Geneva, Switzerland, July 27, 2021 - Organon (NYSE: OGN), a global women’s health company and
ObsEva (NASDAQ: OBSV) (SIX: OBSN), a biopharmaceutical company dedicated to improving women’s reproductive
health,  today  announced  that  the  companies  have  entered  into  an  agreement  whereby  Organon  will  license  the  global
development,  manufacturing  and  commercial  rights  to  ebopiprant  (OBE022).  Ebopiprant  is  an  investigational,  orally
active, selective prostaglandin F2α (PGF2α) receptor antagonist being evaluated as a potential treatment for preterm labor
by reducing inflammation and uterine contractions. If approved, it has potential to be a first-in-class innovation for this
common and serious condition with no approved therapies for acute treatment of preterm labor in the United States.

“This development-stage asset is being studied in one of the most crucial unmet needs for women globally. As we build
Organon’s women’s health research and development portfolio, the agreement strengthens our path to long term growth,”
said Kevin Ali, Organon’s Chief Executive Officer. “Organon and ObsEva share a commitment to improve the lives of
women  around  the  world.  Through  Organon’s  strong  development,  scientific  and  medical  capabilities,  our  goal  is  to
change the future for millions of mothers and babies.”

Organon  intends  to  work  with  the  scientific  and  medical  communities  and  regulatory  authorities  in  major  markets,
including the United States, to advance the clinical development and registration of ebopiprant.

Brian  O’Callaghan,  CEO  of  ObsEva,  commented,  "Organon  is  the  ideal  partner  for  the  development  and
commercialization of ebopiprant and we see this agreement as an important step in advancing this investigational agent.
Although preterm birth rates are on the rise, there are currently no other known compounds in development. That is why
we are focused on evaluating this agent in an important area of unmet need. Together with the data generated to date, this
agreement underscores the value of our program, and we look forward to executing on our shared vision."

Under  the  terms  of  the  agreement,  Organon  will  gain  exclusive  worldwide  rights  to  develop  and  commercialize
ebopiprant. ObsEva is entitled to receive tiered double-digit royalties on commercial sales as well as up to $500 million in
upfront  and  milestone  payments  including  $25  million  to  be  paid  at  signing,  up  to  $90  million  in  development  and
regulatory milestones and up to $385 million sales based milestones. Goldman Sachs acted as exclusive financial advisor
to ObsEva.

About Ebopiprant

In  November  2020,  ObsEva  announced  positive  results  from  PROLONG,  the  Phase  2a  proof-of-concept,  randomized,
double-blind, placebo-controlled trial of ebopiprant in preterm labor. In this study, 113 women with spontaneous preterm
labor (gestational age between 24 and 34 weeks) were randomized and treated with atosiban (ex-U.S. standard of care)
plus ebopiprant or atosiban plus placebo for 7 days. There were 83

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

(73%) women with singleton pregnancies and 30 (27%) with twin pregnancies. One hundred and forty-one neonates were
born.

In the PROLONG study, ebopiprant reduced delivery in singleton pregnancies at 48 hours after the start of dosing by 55%
compared to atosiban alone. Overall, 7/56 (12.5%) of women receiving ebopiprant delivered within 48 hours of starting
treatment compared to 12/55 (21.8%) receiving placebo (OR 90% CI: 0.52 (0.22, 1.23)). In singleton pregnancies, 5/40
(12.5%)  of  women  receiving  ebopiprant  delivered  within  48  hours  compared  to  11/41  (26.8%)  receiving  placebo  (OR
90% CI: 0.39 (0.15, 1.04)).  A modest effect on delivery at 7 days was seen in the singletons.

The incidence of maternal, fetal and neonatal adverse events were comparable between subjects in the ebopiprant group
and the placebo group.

Ebopiprant (OBE022) was licensed from Merck KGaA, Darmstadt, Germany, in 2015.

About ObsEva

ObsEva  is  a  biopharmaceutical  company  developing  and  commercializing  novel  therapies  to  improve  women’s
reproductive  health  and  pregnancy.  Through  strategic  in-licensing  and  disciplined  drug  development,  ObsEva  has
established a late-stage clinical pipeline with development programs focused on new therapies for the treatment of uterine
fibroids, endometriosis, and preterm labor. ObsEva is listed on the Nasdaq Global Select Market and is traded under the
ticker symbol “OBSV” and on the SIX Swiss Exchange where it is traded under the ticker symbol “OBSN”. For more
information, please visit www.ObsEva.com.

About Organon

Organon  is  a  global  healthcare  company  formed  through  a  spinoff  from  Merck,  known  as  MSD  outside  of  the  United
States and Canada, to focus on improving the health of women throughout their lives. Here for her health, the company
has a portfolio of more than 60 medicines and products across a range of therapeutic areas. Led by the reproductive health
portfolio  coupled  with  an  expanding  biosimilars  business  and  stable  franchise  of  established  medicines,  Organon’s
products  produce  strong  cash  flows  that  will  support  investments  in  future  growth  opportunities  in  women’s  health,
including business development like recently acquired Alydia Health, a medical device company focused on postpartum
hemorrhage. In addition, Organon is pursuing opportunities to collaborate with biopharmaceutical innovators looking to
commercialize their products by leveraging its scale and presence in fast growing international markets.

Organon  has  a  global  footprint  with  significant  scale  and  geographic  reach,  world-class  commercial  capabilities,  and
approximately  9,000  employees  with  its  headquarters  located  in  Jersey  City,  New  Jersey.  For  more  information,  visit
http://www.organon.com and connect with us on LinkedIn and Instagram.

Forward-Looking Statement of Organon & Co.

Except for historical information herein, this news release of Organon & Co. (the “company”) includes “forward-looking
statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995,
including,  but  not  limited  to,  statements  about  ebopiprant  as  a  potential  treatment  for  preterm  labor,  Organon’s  and
ObsEva’s ability to improve the lives of women, Organon’s ability to advance the clinical development of ebopiprant, and
the  potential  benefits  of  the  license.  Forward-looking  statements  may  be  identified  by  words  such  as  “potential,”
“expects,” “intends,” “anticipates,” “plans,” “believes,” “seeks,” “estimates,” “will” or words of similar meaning. These
[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

statements  are  based  upon  the  current  beliefs  and  expectations  of  Organon’s  management  and  are  subject  to  significant
risks and uncertainties. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may
differ materially from those set forth in the forward-looking statements.

Risks  and  uncertainties  include  but  are  not  limited  to,  general  industry  conditions  and  competition;  general  economic
factors,  including  the  impact  of  the  recent  global  outbreak  of  novel  coronavirus  disease  (COVID-19);  the  impact  of
pharmaceutical  industry  regulation  and  health  care  legislation  in  the  United  States  and  internationally;  technological
advances, new products and patents attained by competitors; challenges inherent in new product development, including
obtaining  regulatory  approval;  Organon’s  ability  to  accurately  predict  its  future  financial  results  and  performance;
Organon’s ability to accurately predict future market conditions; manufacturing difficulties or delays; dependence on the
effectiveness of Organon’s patents and other protections for innovative products; and the exposure to litigation, including
patent litigation, and/or regulatory actions.

Organon does not undertake any obligation to publicly update any forward-looking statement, whether as a result of new
information,  future  events  or  otherwise.  Additional  factors  that  could  cause  results  to  differ  materially  from  those
described  in  the  forward-looking  statements  can  be  found  in  Organon’s  filings  with  the  Securities  and  Exchange
Commission (“SEC”), including its registration statement on Form 10, available at the SEC’s Internet site (www.sec.gov).

Cautionary Note Regarding Forward Looking Statements of ObsEva SA

Any  statements  contained  in  this  press  release  that  do  not  describe  historical  facts  may  constitute  forward-looking
statements  as  that  term  is  defined  in  the  Private  Securities  Litigation  Reform  Act  of  1995.  These  statements  may  be
identified by words such as “believe”, “expect”, “may”, “plan”, “potential”, “will”, and similar expressions, and are based
on  ObsEva’s  current  beliefs  and  expectations.  These  forward-looking  statements  include  expectations  regarding  the
clinical development of and commercialization plans for ObsEva’s product candidates, expectations regarding regulatory
and development milestones, including the potential timing of regulatory submissions to the EMA and FDA and ObsEva’s
ability  to  obtain  and  maintain  regulatory  approvals  for  its  product  candidates,  and  the  results  of  interactions  with
regulatory authorities. These statements involve risks and uncertainties that could cause actual results to differ materially
from those reflected in such statements. Risks and uncertainties that may cause actual results to differ materially include
uncertainties inherent in the conduct of clinical trials and clinical development, including the risk that the results of earlier
clinical  trials  may  not  be  predictive  of  the  results  of  later  stage  clinical  trials,  related  interactions  with  regulators,
ObsEva’s  reliance  on  third  parties  over  which  it  may  not  always  have  full  control,  the  impact  of  the  ongoing  novel
coronavirus outbreak, and other risks and uncertainties that are described in the Risk Factors section of ObsEva’s Annual
Report on Form 20-F for the year ended December 31, 2020 filed with Securities and Exchange Commission (SEC) on
March  5,  2021  and  other  filings  ObsEva  makes  with  the  SEC. These  documents  are  available  on  the  Investors  page  of
ObsEva’s  website  at  http://www.ObsEva.com. Any  forward-looking  statements  speak  only  as  of  the  date  of  this  press
release and are based on information available to ObsEva as of the date of this release, and ObsEva assumes no obligation
to, and does not intend to, update any forward-looking statements, whether as a result of new information, future events or
otherwise.

Media Contacts Organon:

Karissa Peer
(614) 314-8094

Investor Contacts:

Jennifer Halchak
(201) 275-2711

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Kate Vossen
(732) 675-8448

Edward Barger
(267) 614-4669

CEO Office Contact Obseva:

Shauna Dillon
+41 22 552 1550
Shauna.Dillon@obseva.ch

Investor Contacts:

Joyce Allaire
+1(617) 435 6602
jallaire@lifesciadvisors.com

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Schedule 11.1(z)
CMO Agreements

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

[*]  =  CERTAIN  CONFIDENTIAL  INFORMATION  CONTAINED  IN  THIS  DOCUMENT,  MARKED  BY  [*],  HAS  BEEN
OMITTED BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS
PRIVATE OR CONFIDENTIAL.

Exhibit 10.58

LICENSE AGREEMENT

Dated June 10, 2015

By and Between

ARES TRADING S.A.

And

OBSEVA S.A.

LICENSE AGREEMENT

THIS  LICENSE  AGREEMENT  (the  “Agreement”)  is  dated  as  of  June  10,  2015  (the  “Effective  Date”)  by  and  between  ARES
TRADING  SA,  a  Swiss  corporation  with  registered  offices  at  Zone  Industrielle  de  l’Ouriettaz,  1108 Aubonne,  Switzerland  (“Merck
Serono”)  and  OBSEVA  S.A.,  a  Swiss  corporation  with  registered  offices  at  12,  Chemin  des  Aulx,  1228  Plan-Les-Ouates,  Geneva
(“Licensee”). Merck Serono and Licensee may be referred to herein as a “Party” or, collectively, as “Parties”.

WHEREAS, Licensee is active in the field of reproductive health and medicine;

WITNESSETH:

WHEREAS, Merck Serono is engaged, among other activities, in the development of pharmaceutical products; and

WHEREAS,  Merck  Serono  wishes  to  license  to  Licensee,  on  an  exclusive  worldwide  basis,  the  right  to  research,  develop,

manufacture and commercialize products comprising the Licensed Compounds in the Field (as hereinafter defined); and

WHEREAS, Licensee wishes to obtain, and Merck Serono is willing to grant a license to the Merck Serono Technology upon

the terms and conditions set forth herein; and

NOW, THEREFORE, in consideration of the promises and mutual covenants contained herein, the parties agree to as follows:

ARTICLE 1

DEFINITIONS

The following terms shall have the following respective definitions:

1.1

“Affiliate” means a Person or entity that controls, is controlled by or is under common control with a Party, but only
for so long as such control exists. For the purposes of this Section 1.1, the word “control” (including, with correlative meaning, the
terms “controlled by” or “under the common control with”) means the actual power, either directly or indirectly through one or more
intermediaries,  to  direct  the  management  and  policies  of  such  Person  or  entity,  whether  by  the  ownership  of  at  least  fifty  percent
(50%) of the voting stock of such entity, or by contract or otherwise.

1.2

“Bankruptcy Event” means: (a) voluntary or involuntary proceedings by or against a Party instituted in bankruptcy
under any insolvency law, which proceedings, if involuntary, shall not have been dismissed within sixty (60) days after the date of
filing;  (b)  a  receiver  or  custodian  is  appointed  for  a  Party;  (c)  proceedings  are  instituted  by  or  against  a  Party  for  corporate
reorganization, dissolution, liquidation or winding-up of such Party, which proceedings, if involuntary, shall not have been dismissed
within sixty (60) days after the date of filing; or (d) substantially all of the assets of a Party are seized or attached and not released
within sixty (60) days thereafter.

1.3

“Calendar  Quarter”  means  each  three  (3)  month  period  commencing  January  1,  April  1,  July  1  or  October  1,
provided  however  that  (i)  the  first  Calendar  Quarter  of  the  Term  shall  extend  from  the  Effective  Date  to  the  end  of  the  first  full
Calendar Quarter thereafter, and (ii) the last Calendar Quarter of the Term shall end upon the expiration of this Agreement.

1.4

“Calendar Year” means the period beginning on the 1st of January and ending on the 31st of December of the same
year, provided however that (i) the first Calendar Year of the Term shall commence on the Effective Date and end on December 31,
2015 and (ii) the last Calendar Year of the Term shall commence on

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

January 1 of the Calendar Year in which this Agreement terminates or expires and ends on the date of termination or expiration of this
Agreement.

1.5

“Clinical Trial” means a clinical trial in human subjects that has been approved by a Regulatory Authority and is
designed to measure the safety and/or efficacy of a Licensed Product. Clinical Trials shall include Phase I Trials, Phase II Trials and
Phase III Trials.

1.6

“Combination  Product”  means  a  product  containing  the  Licensed  Product  together  with  one  or  more  active

ingredient, or with one or more product, device, equipment or component.

1.7

“Commercialization”  or  “Commercialize”  means  any  and  all  activities  undertaken  prior  to  and  after  Regulatory
Approval of an NDA for a particular Licensed Product and that relate to the marketing, promoting, distributing, importing for sale,
offering for sale, and selling of the Licensed Product.

1.8

“Commercially Reasonable Efforts” means, (a) with respect to the efforts to be expended by any Party with respect
to any objective, such reasonable, diligent, and good faith efforts as such Party would normally use to accomplish a similar objective
under  similar  circumstances,  and  (b)  with  respect  to  any  obligation  relating  to  research,  Development  or  Commercialization  of  a
Licensed Product by Licensee, the application by Licensee of the level of efforts required to carry out such obligation in a sustained
manner consistent with the efforts a similarly situated biopharmaceutical company or pharmaceutical company, as the case may be,
devotes to a product of similar market potential, profit potential or strategic value resulting from its own research efforts.

1.9

“Confidential  Information”  of  a  Party  means  information  relating  to  the  business,  operations  and  products  of  a
Party or any of its Affiliates, including but not limited to, any technical information, Know-How, trade secrets, or inventions (whether
patentable or not), not known or generally available to the public, that such Party discloses to the other Party under this Agreement, or
otherwise becomes known to the other Party by virtue of this Agreement.

1.10

“Controlled”  means,  with  respect  to  (a)  Patent  Rights,  (b)  Know-How  or  (c)  biological,  chemical  or  physical
material, that a Third Party or a Party or one of its Affiliates owns or has a license or sublicense to such right, item, or material (or in
the case of material, has the right to physical possession of such material) and has the ability to grant a license or sublicense to, or
assign its right, title and interest in and to, such right, item or material as provided for in this Agreement.

1.11

“Cover”, “Covering” or “Covered” means, with respect to a Licensed Product, that the using, selling, or offering for
sale of such Licensed Product would, but for a license granted in this Agreement under the Merck Serono Patents, infringe a Valid
Claim of the Merck Serono Patents in the country in which the activity occurs.

1.12

“Development”  means,  with  respect  to  a  Licensed  Product,  the  performance  of  all  pre-clinical  and  clinical
development (including toxicology, pharmacology, test method development and stability testing, process development, formulation
development,  quality  control  development,  statistical  analysis),  Clinical  Trials  (excluding  clinical  trials  conducted  after  Regulatory
Approval  of  an  NDA),  manufacturing  and  regulatory  activities  that  are  required  to  obtain  Regulatory  Approval  of  the  Licensed
Product in the Territory.

1.13

“Executive Officers” means, together, a member of the senior management of the pharmaceutical division of Merck

Serono and the Chief Executive Officer of Licensee.

1.14

“EMA” means the European Medicines Agency or any successor agency.

1.15

“FDA” means the United States Food and Drug Administration, or a successor federal agency thereto.

1.16

“Field” means all prophylactic, palliative, therapeutic or diagnostic uses in humans and animals.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

1.17

“First  Commercial  Sale”  shall  mean,  on  a  country-by-country  basis,  the  first  sale  for  monetary  value  to  a  Third
Party for use or consumption of the Licensed Product, by Licensee, its Affiliate(s) or Sublicensees. For the avoidance of doubt, a First
Commercial Sale may only occur after the Licensed Product has received Regulatory Approval valid for the country in which the First
Commercial Sale occurs.

1.18

“Governmental  Body”  means  any:  (a)  nation,  principality,  state,  commonwealth,  province,  territory,  county,
municipality,  district  or  other  jurisdiction  of  any  nature;  (b)  federal,  state,  local,  municipal,  foreign  or  other  government;
(c)  governmental  or  quasi-governmental  authority  of  any  nature  (including  any  governmental  division,  subdivision,  department,
agency, bureau, branch, office, commission, council, board, instrumentality, officer, official, representative, organization, unit, body or
entity  and  any  court  or  other  tribunal);  (d)  multi-national  or  supranational  organization  or  body;  or  (e)  individual,  entity,  or  body
exercising, or entitled to exercise, any executive, legislative, judicial, administrative, regulatory, police, military or taxing authority or
power of any nature.

1.19

“IND” means an investigational new drug application filed with the FDA or the equivalent application or filing filed
with  any  equivalent  agency  or  Governmental  Body  outside  the  United  States  (including  any  supra-national  entity  such  as  in  the
European Union) for approval to commence Clinical Trials in such jurisdiction, and including all regulations at 21 CFR § 312 Et. Seq.
and equivalent foreign regulations.

1.20

“Initiation” of a Clinical Trial means the [*] patient with a Licensed Product in such Clinical Trial.

1.21

“Know-How” means any scientific or technical information, results and data of any type whatsoever, in any tangible
form, that is not in the public domain or otherwise publicly known, including, without limitation, discoveries, inventions, trade secrets,
databases,  practices,  protocols,  regulatory  filings,  methods,  processes,  techniques,  biological  and  other  materials,  reagents,
specifications, formulations, formulae, data (including pharmacological, biological, chemical, toxicological and clinical information,
analytical, quality control and stability data, studies and procedures), manufacturing process and development information, results and
data, whether or not patentable, all to the extent not claimed or disclosed in a patent. “Know How” excludes Patent Rights.

1.22

“Licensed Compound(s)” means the Merck Serono’s proprietary compounds known as [*] and which are listed on

Schedule 1.23. For the avoidance of doubt, Licensed Compounds are prostaglandin F2 receptors antagonists.

1.23

“Licensed  Product(s)”  means  any  pharmaceutical  product,  in  any  dosage  form,  formulation,  presentation  or
package  configuration  that  is  commercialized  or  undergoing  research  or  pre-clinical  or  clinical  development  that  contains  or
comprises, in part or in whole, a Licensed Compound.

1.24

“Licensee  Know-How”  means  all  Know-How  that  is  owned  or  Controlled  by  Licensee  or  its Affiliates  after  the

Effective Date and is necessary in the research, Development, manufacture, use, or Commercialization of the Licensed Products.

1.25

“Major Market” means the United States, Germany, France, Italy, the United Kingdom and Spain.

1.26

“Merck Serono Know-How” means all Know-How that is owned or Controlled by Merck Serono as of the Effective
Date and is necessary in the research, Development, manufacture, use, or Commercialization of the Licensed Products. The Know-
How set forth on Schedule 1.27 constitutes all of such Know-How owned or Controlled by Merck Serono on the Effective Date.

1.27

“Merck  Serono  Materials”  means  all  chemical,  biological  or  physical  materials  that  are  owned  or  Controlled  by
Merck Serono or any of its Affiliates as of the Effective Date and that are necessary in the research, Development, manufacture, use or
Commercialization of the Licensed Products. The Merck Serono Materials are set forth on Schedule 1.28.

1.28

“Merck Serono Patents” means the Patent Rights listed on Schedule 1.29.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

1.29

“Merck  Serono  Technology”  means  the  Merck  Serono  Know-How,  the  Merck  Serono  Patents  and  the  Merck

Serono Materials, collectively.

1.30

“NDA” means a New Drug Application filed pursuant to the requirements of the FDA, as more fully defined in 21
CFR.§ 314.3 et seq, a Biologics License Application filed pursuant to the requirements of the FDA, as more fully defined in 21 CFR
§  601,  and  any  equivalent  application  filed  in  any  country  in  the  Territory,  together,  in  each  case,  with  all  additions,  deletions  or
supplements thereto.

“Net Sales” means, with respect to each country of the Territory, the amounts invoiced by Licensee or its Affiliates
or Sublicensees for all sales of Licensed Products to a Third Party (whether an end user, a distributor or otherwise), less the following:

1.31

rebates), reimbursements, allowances and credits for expired Licensed Products;

(i)

trade,  cash  and  quantities  discounts,  rebates  (including  rebates  similar  to  Medicare  or  other  government

sales, use or similar taxes (including duties or other governmental charges levied or otherwise imposed on
the sale or use of such Licensed Product, including, without limitation, value added taxes or other governmental charges otherwise
measured by the billing amount, but only to the extent such amount(s) is (are) included in the billing);

(ii)

(are) included in the billing;

(iii)

freight, postage, shipping, customs duties and insurance charges, but only to the extent such amount(s) is

(iv)

any  other  specifically  identified  amounts  included  in  the  Licensed  Product  invoice  price  that  should  be
credited for reasons substantially equivalent to those listed above or as determined in accordance with Licensee’s usual and customary
accounting methods which are in accordance with International Accounting Standards or equivalent.

Net Sales shall not include credits or allowances actually granted for damaged goods, returns or rejections of previously sold

Licensed Products and retroactive price reductions for wastage replacement, indigent patients and similar programs.

For the avoidance of doubt, Net Sales may only occur after the Licensed Product has received Regulatory Approval valid for

the country in which the Net Sales occur.

In the event that a Licensed Product is sold in the form of a Combination Product, Net Sales for such Combination Product
will be calculated by multiplying actual Net Sales of such Combination Product by the fraction A/(A+B) where A is the invoice price
of the Licensed Product containing a Compound as the only active ingredient if sold separately, and B is the invoice price of any other
active ingredient(s) or other products, devices, equipment or components in the Combination Product if sold separately. In the event
that  the  Licensed  Product  or  one  or  more  of  such  active  ingredients  or  other  products,  devices,  equipment  or  components  in  the
Combination Product are not sold separately, then the Net Sales for such Combination Product shall be determined by the Parties in
good faith.

1.32

“Patent  Right(s)”  means:  (a)  an  issued  or  granted  patent,  including  any  extension,  supplemental  protection
certificate, registration, confirmation, reissue, reexamination, extension or renewal thereof; (b) a pending patent application, including
any  continuation,  divisional,  continuation-in-part,  substitute  or  provisional  application  thereof;  and  (c)  all  counterparts  or  foreign
equivalents of any of the foregoing issued by or filed in any country or other jurisdiction.

1.33

“Person”  means  any  natural  person,  corporation,  firm,  business  trust,  joint  venture,  association,  organization,

company, partnership or other business entity, or any Governmental Body, government or agency or political subdivision thereof.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

1.34

“Phase I Trial” means a Clinical Trial in which the Licensed Product is administered to human subjects at multiple
dose levels with the primary purpose of determining safety, metabolism, and pharmacokinetic and pharmacodynamic properties of the
Licensed Product, and consistent with 21 CFR § 312.21(a).

1.35

“Phase II Trial” means a Clinical Trial of the Licensed Product in human patients, the principal purposes of which
are to make a preliminary determination that the Licensed Product is safe for its intended use, to determine its optimal dose, and to
obtain  sufficient  information  about  the  Licensed  Product’s  efficacy  to  permit  the  design  of  Phase  III Trials,  and  consistent  with  21
CFR 312.21(b).

1.36

“Phase III Trial” means a human Clinical Trial of the Licensed Product, which trial is designed (a) to establish that
the  Licensed  Product  is  safe  and  efficacious  for  its  intended  use;  (b)  to  define  warnings,  precautions  and  adverse  reactions  that  are
associated with the Licensed Product in the dosage range to be prescribed; and (c) consistent with 21 CFR § 312.21(c).

1.37

“Preferred Equity” means, with respect to shares, equity with rights identical to existing Series A Preferred shares.

1.38

“Regulatory Authority” means (a) the FDA, (b) the EMA or the European Commission, or (c) any regulatory body

with similar regulatory authority over pharmaceutical or biotechnology products in any other jurisdiction anywhere in the world.

1.39

“Regulatory Approval” means the receipt from a Regulatory Authority by Licensee, its Affiliates, or Sublicensees of

approval to lawfully market a Licensed Product in the corresponding jurisdiction in the Territory.

1.40

“Sublicensee” means a Person other than an Affiliate of Licensee to which Licensee (or its Affiliate) has, pursuant
to Section 2.2, granted sublicense rights under any of the Merck Serono Technology licensed under Section 2.1. “Sublicense” shall be
construed accordingly. For the avoidance of doubt, a Third Party contract manufacturer of Licensed Products on behalf of Licensee
shall not be considered a Sublicensee for the purpose of this Agreement.

1.41

“Territory” means all the countries in the world.

1.42

“Third  Party”  shall  mean  any  Person  that  is  not  a  Party,  an  Affiliate  of  a  Party,  or  a  Sublicensee  of  Licensee

hereunder.

1.43

“Third  Party  License  Agreement”  means  any  agreement  entered  into  by  Licensee  with  a  Third  Party,  or  any
amendment or supplement thereto, in each case following the Effective Date, whereby royalties, fees or other payments are to be made
by  Licensee  to  such  Third  Party  in  connection  with  the  grant  of  rights  under  intellectual  property  rights  Controlled  by  such  Third
Party, which rights are necessary to research or Develop the Licensed Compounds or Licensed Products.

1.44

“Valid Claim” means any claim in any (i) unexpired and issued patent that has not been disclaimed, revoked or held
invalid  by  a  final  nonappealable  decision  of  a  court  or  other  governmental  agency  of  competent  jurisdiction  or  any  (ii)  patent
application [*].

1.45

Other Terms. The definition of each of the following terms is set forth in the section of the Agreement indicated

below:

“Action” has the meaning set forth in Section 5.5 (b).

“Controlling Party” has the meaning set forth in Section 5.6 (c).

“Disputes” has the meaning set forth in Section 10.9.

“Licensee Indemnitees” has the meaning set forth in Section 8.1.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

“Licensee Patents” has the meaning set forth in Section 5.4 (a).

“Losses” has the meaning set forth in Section 8.1.

“Merck Serono Indemnitees” has the meaning set forth in Section 8.2.

“Royalty Term” has the meaning set forth in Section 4.2 (d).

“Term” has the meaning set forth in Section 9.1.

“Upfront Payment” has the meaning set forth in Section 4.1.

ARTICLE 2

GRANT OF LICENSE

2.1

Grant of License. Subject to the terms and conditions of this Agreement, Merck Serono hereby grants to Licensee
an  exclusive  (even  as  to  Merck  Serono),  worldwide,  royalty-bearing  right  and  license  (with  the  right  to  sublicense  subject  to  the
provisions  of  Section  2.2)  under  the  Merck  Serono  Technology  to  research,  Develop,  make,  have  made,  import,  export,  use  and
Commercialize the Licensed Products in the Field in the Territory.

2.2

Grant of Sublicense by Licensee. The Licensee shall have the right to grant Sublicenses under the license granted
in Section 2.1, subject to Merck Serono being duly informed in writing by Licensee in advance of the execution of any Sublicense
agreement. The Sublicense agreement shall be consistent with the terms and conditions of this Agreement. The granting by Licensee
of a Sublicense shall not relieve Licensee of its obligations hereunder. Licensee shall promptly provide Merck Serono with a copy of
the fully executed Sublicense agreement, which shall be redacted from its commercial terms, and Merck Serono hereby undertakes to
treat such redacted Sublicense agreement as Confidential Information. For the avoidance of doubt, Licensee may grant Sublicenses to
Sublicensees on a country-by-country basis or worldwide.

2.3

Transfer.  Merck  Serono  shall  use  Commercially  Reasonable  Efforts  to  transfer  to  Licensee  the  Merck  Serono
Know-How and the Merck Serono Materials within thirty (30) days following the Effective Date. If within sixty (60) days after the
initial  transfer  Licensee  identifies  specific  items  within  the  Merck  Serono  Know-How  that  were  not  transferred  to  Licensee,  then
Merck Serono will use reasonable efforts to provide the same to Licensee upon request. In addition, at Licensee’s reasonable request,
Merck  Serono  shall  provide  access  to  any  raw  data  or  report  directly  and  exclusively  related  to  the  Licensed  Product  which  may
become  necessary  for  the  Licensee  to  research,  manufacture  and  Develop  any  Licensed  Product  in  the  Field.  Each  Party  hereby
designates a contact person as indicated below whose responsibility it will be to oversee the transfer described in this Section 2.3:

For Licensee: [*]

For Merck Serono: [*]

ARTICLE 3

DEVELOPMENT AND COMMERCIALIZATION

3.1

Development and Commercialization of the Licensed Products by Licensee. Licensee shall have the exclusive
right and responsibility to research and Develop the Licensed Products and to conduct (either itself or through its Affiliates, agents,
subcontractors  and/or  Sublicensees)  all  Clinical  Trials  and  non-clinical  studies  Licensee  believes  appropriate  to  obtain  Regulatory
Approval  for  the  Licensed  Products  in  any  indication.  In  addition,  Licensee  shall  have  the  exclusive  right  to  Commercialize  the
Licensed  Products  itself  or  through  one  or  more  Third  Parties  and/or  Sublicensees  selected  by  Licensee,  and  shall  have  the
responsibility in all matters relating to the Commercialization of the Licensed Products.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

3.2

Manufacturing  and  Supply.  Subject  to  the  terms  and  conditions  of  this  Agreement,  Licensee  shall  have  the
exclusive  right  to  manufacture  the  Licensed  Compounds  and  the  Licensed  Products  itself  or  through  one  or  more  Third  Party
subcontractor(s) selected by Licensee.

3.3

Regulatory  Filings.  Licensee  shall  be  responsible  for  and  shall  own  and  maintain  all  regulatory  filings  and

Regulatory Approvals for the Licensed Products, including all INDs and NDAs.

3.4

Diligence  by  Licensee.  Licensee  shall  use  Commercially  Reasonable  Efforts  to  (a)  research  and  Develop  at  least
one  Licensed  Product,  in  accordance  with  its  development  plan  as  updated  and/or  amended  from  time  to  time  and  (b)  launch  and
Commercialize  at  least  one  Licensed  Product  in  each  Major  Market  within  [*]  after  receiving  Regulatory Approval  (which  for  the
purpose of this clause 3.4 shall include approval of pricing and reimbursement) in such Major Market.

3.5

Reporting.  Licensee  (or  its  Sublicensee,  as  applicable)  shall,  on  each  anniversary  of  the  Effective  Date,  provide
Merck  Serono  with  a  written  report  summarizing  its  research,  Development,  manufacturing  and  as  applicable  Commercialization
activities in the Territory during the preceding Calendar Year.

3.6

Trademarks. Licensee shall have the sole authority to select trademarks for the Licensed Products and shall own all

such trademarks.

ARTICLE 4

FINANCIAL TERMS

4.1

Upfront  Payment.  In  partial  consideration  for  the  grant  of  the  rights  hereunder,  Licensee  shall  assign  25’000
Preferred  Equity  shares  (“Upfront  Payment”)  to  Merck  Serono  within  thirty  (30)  days  after  the  Initiation  of  the  first  Phase  I Trial
(‘‘Phase I Equity Event’’), it being specified that Merck Serono will subscribe to such Preferred Equity shares at the nominal value of
CHF 1,-. In the event of any liquidation, dissolution, winding-up, sale or merger of Obseva (a “Liquidation Event”), irrespective of its
legal qualification, before the occurrence of the Phase I Equity Event, Licensee shall automatically assign the 25’000 Preferred Equity
shares to Merck Serono, it being specified that Merck Serono will subscribe to such Preferred Equity shares at the nominal value of
CHF 1,- and such assignment shall take place immediately before the Liquidation Event. If additional securities are issued or sold by
ObsEva prior to the occurrence of the Phase I Equity Event, Merck Serono shall have the right to maintain a percentage ownership on
an as converted basis through the purchase of its pro rata share of such securities on the same terms as such securities are offered to
other purchasers (“the pre-Phase I Equity Event Pre-emptive Rights”). For the calculation of the pro-rata share purchase under such
“pre-Phase I Equity Event Pre-emptive Right”, the 25’000 Preferred Equity Shares shall be counted as if they have been assigned to
Merck Serono on the Effective Date.

4.2

Royalty Payments.

Royalty Rate. As further consideration for Merck Serono’s grant of the rights and licenses to the Licensee
hereunder, the Licensee shall, during each applicable Royalty Term (i.e. on a country-by-country basis), pay to Merck Serono a royalty
on aggregate annual worldwide Net Sales of each Licensed Product for each Calendar Year, at the percentage rate set forth below:

(a)

Royalty Rate for Annual Net Sales of Licensed Products Net Sales per Calendar Year

[*]

(b)

Know-How Royalty. The royalty rate set forth in Section 4.2 (a) applicable to the Net Sales of a Licensed
Product in a country will be reduced by [*] during any period there exists no Valid Claim of a Merck Serono Patent in such country
that Covers such Licensed Product in such country. For the avoidance of doubt, no Know-How Royalties shall be due in any country
after the end of the Royalty Term pursuant to Section 4.2 (d) in such country.

Third  Party  License  Agreements.  Subject  to  the  terms  and  conditions  of  this  Agreement,  if  Licensee
enters into one or more Third Party License Agreement(s), Licensee will be entitled to deduct from any royalties payable to Merck
Serono under Section 4.2 (from the amount calculated by consideration of the then

(c)

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

applicable royalty rate), an amount equal to not more than [*] of any amounts paid by Licensee pursuant to such Third Party License
Agreement(s) in respect of the Licensed Product which gave rise to the payment obligation under Section 4.2. Notwithstanding the
foregoing, under no circumstances shall the deductions under this Section 4.2 (c) result in the amount payable to Merck Serono being
reduced by more than [*] compared with the amount otherwise payable under Section 4.2. In the event that Licensee is not able to
deduct the full amount of the permitted deduction from the amount due to Merck Serono due to the [*] minimum amount, Licensee
shall be entitled to deduct any undeducted excess amount from subsequent amounts owed to Merck Serono (subject always to Merck
Serono receiving a minimum of [*] of the amount owed).

(d)

Royalty  Term.  Royalties  shall  be  payable  on  a  Licensed  Product-by-Licensed  Product  and  country-by-
country basis from the period from the First Commercial Sale of Licensed Product in such country until the latest of (a) the last date
on which such Licensed Product is Covered by a Valid Claim within a Merck Serono Patent in such country, or (b) ten (10) years after
such First Commercial Sale of Licensed Product in such country (the “Royalty Term”).

(e)

Payment of Royalties. Nothing herein contained shall obligate Licensee and/or its Sublicensees to pay or
cause to be paid to Merck Serono more than one royalty on any unit of Licensed Product. Simultaneous with the delivery of the report
described in Section 4.2 (f) hereof, Licensee shall pay, or cause to be paid, to Merck Serono at such place as Merck Serono may from
time to time designate in writing, all royalties earned pursuant to this Section 4.2 in the preceding Calendar Quarter. All such payments
shall be made in Euros.

(f)

Royalty  Reports;  Currency  Conversion.  Commencing  with  the  Calendar  Quarter  in  which  the  First
Commercial Sale of a Licensed Product is made by the Licensee or its Affiliate or Sublicensee, Licensee shall submit to Merck Serono
with  each  royalty  payment  a  report  detailing  its  computation  of  royalties  due  on  Net  Sales  in  each  country  during  each  Calendar
Quarter  within  sixty  (60)  days  after  the  end  of  such  Calendar  Quarter  (and  Licensee  shall  cause  its  Sublicensees  to  submit  royalty
reports  containing  the  same  level  of  detail).  All  payments  to  Merck  Serono  hereunder  shall  be  made  by  deposit  of  Euros  in  the
requisite amount to such bank account as Merck Serono may from time to time designate by written notice to Licensee. With respect
to sales not denominated in Euros, royalty amounts owed shall first be calculated in the currency of sale, and then such amounts shall
be converted into Euro using the exchange rate of the European Central Bank on the last day of the Calendar Quarter to which the
report relates. For accounting and documentation purposes, the Parties may vary the method of payment set forth herein at any time
upon mutual agreement, and any change shall be consistent with the local law at the place of payment or remittance.

(g)

Record  Retention,  Inspection.  Licensee  shall  keep  or  cause  its  Affiliates  and  Sublicensee  to  keep
complete and accurate records in sufficient detail to enable Net Sales and royalties payable under Section 4.2 to be established for a
period of sixty (60) months after the date that such royalties were payable. Such records shall be consistent with Licensee’s normal
accounting  principles.  At  the  request  and  cost  of  Merck  Serono  (but  not  more  frequently  than  once  each  Calendar  Year)  an
independent chartered or certified public accountant chosen by Merck Serono but approved by the Licensee (which approval shall not
be  unreasonably  withheld  or  delayed)  shall  be  allowed  access  during  ordinary  business  hours  to  such  records  pertaining  to  the
preceding  two  (2)  Calendar  Year  solely  to  verify  the  accuracy  of  any  payments  made  to  Merck  Serono  under  Section  4.2.  The
accountant  shall  not  disclose  to  Merck  Serono  any  information  other  than  that  which  should  properly  be  contained  in  a  report  of
matters relevant to Net Sales and royalty calculation and payment arising under Section 4.2 above. Licensee shall make Sublicensee
records available to Merck to the same extent as set forth in this Section 4.2 (g).

4.3

Tax. If applicable law requires that taxes be deducted and withheld from royalties or any other payments paid under
this Agreement by either Party, said Party shall (i) deduct those taxes and interests and penalties assessed thereon from the payment or
from any other payment owed by said Party hereunder; (ii) pay the taxes to the proper Governmental Body; (iii) send evidence of the
obligation  together  with  proof  of  payment  to  the  other  Party  within  three  (3)  months  following  such  payment;  (iv)  remit  the  net
amount,  after  deductions  or  withholding  made  under  this  Section  4.3  and  (v)  cooperate  with  other  Party  in  any  way  reasonably
requested by said other Party, to obtain available reductions, credits or refunds of such taxes; provided, however, that the other Party
shall reimburse said Party for said Party’s out-of-pocket expenses incurred in providing such assistance. It is understood and agreed
between  the  Parties  that  any  payments  made  by  either  Party  under  this Agreement  are  exclusive  of  any  value  added  or  similar  tax
imposed upon such payment.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

4.4

Late Payment. Payments not paid when due shall bear interest at a rate of [*] per annum above the three-month
EURO LIBOR which applied on the day when the payment was due. Calculation of interest will be made for the exact number of days
in the interest period based on a year of three hundred and sixty (360) days.

ARTICLE 5

INVENTIONS AND PATENTS

5.1

Certification  Under  Drug  Price  Competition  and  Patent  Restoration Act.  Each  Party  shall  immediately  give
written notice to the other Party of any certification of which they become aware filed pursuant to 21 U.S.C. Section 355(b)(2)(A) (or
any  amendment  or  successor  statute  thereto)  claiming  that  any  Merck  Serono  Patents  covering  Licensed  Compounds  or  Licensed
Products, or the manufacture or use of each of the foregoing, are invalid or unenforceable, or that infringement will not arise from the
manufacture, use or sale of a product by a Third Party.

5.2

Listing  of  Patents.  Merck  Serono  shall  determine  which  of  the  Merck  Serono  Patents,  if  any,  shall  be  listed  for
inclusion  in  the  Approved  Drug  Products  with  Therapeutic  Equivalence  Evaluations  pursuant  to  21  U.S.C.  Section  355,  or  any
successor law in the United States, together with any comparable laws or regulations in any other country in the Territory. Licensee
shall  have  the  right  to  propose  Merck  Serono  Patents  for  such  listing  and  Merck  Serono  shall  not  unreasonably  reject  any  such
proposal.

5.3

Title to Inventions. All inventions having as inventors solely employees or independent contractors of one Party in
the course of the Parties’ performance under this Agreement, and all intellectual property rights pertaining to such inventions shall be
the property of such Party.

5.4

Patent Prosecution and Maintenance.

(a)

Licensee Patents. Licensee shall have the right to file, prosecute and maintain the Patent Rights owned by
Licensee pursuant to Section 5.3 or otherwise (such Patent Rights, the “Licensee Patents”). Licensee shall bear all costs and expenses
of filing, prosecuting and maintaining Licensee Patents in the Territory. For the avoidance of doubt, Merck Serono shall have no right
whatsoever regarding any Licensee Patents, including if such Licensee Patents are entirely or partially based on Merck Serono Know-
How.

(b)

Merck Serono Patents. Merck Serono shall have the first right, and the obligation, to file, prosecute and
maintain Merck Serono Patents. Merck Serono shall bear all costs and expenses of filing, prosecuting and maintaining Merck Serono
Patents  in  the  Territory.  Merck  Serono  shall  keep  Licensee  informed  of  the  course  of  the  filing  and  prosecution  of  Merck  Serono
Patents  or  related  proceedings  (e.g.  interferences,  oppositions,  reexaminations,  reissues,  revocations  or  nullifications)  in  the  United
States, the European Union, Japan, China, Canada and Australia in a timely manner, and shall take into consideration the advice and
recommendations  of  Licensee  in  that  respect.  At  Merck  Serono’s  request,  Licensee  will  provide  Merck  Serono  with  reasonable
assistance in prosecuting Merck Serono Patents to the extent possible, including providing such data in Licensee’s control that is, in
Merck  Serono’s  reasonable  judgment,  needed  to  support  the  prosecution  of  a  Merck  Serono  Patent;  provided,  however,  that  Merck
Serono shall reimburse Licensee for Licensee’s out-of-pocket expenses incurred in providing such assistance.

(c)

Election not to file and prosecute Merck Serono Patents. If Merck Serono elects not to file, prosecute or
maintain  a  Merck  Serono  Patent  in  a  country  or  possession  in  the  Territory,  then  it  shall  notify  Licensee  in  writing  at  least  ninety
(90) days before any deadline applicable to the filing, prosecution or maintenance of such Merck Serono Patent, as the case may be, or
any other date by which an action must be taken to establish or preserve such Merck Serono Patent in such country or possession. In
such  case,  Licensee  shall  have  the  right,  but  not  the  obligation,  to  pursue  the  filing  or  support  the  continued  prosecution  or
maintenance of such Merck Serono Patent. If Licensee does elect to take such action in a country in the Territory, then it shall notify
Merck Serono of such election, and Merck Serono shall reasonably cooperate with Licensee in this regard. If Licensee does elect to
take such action in a country in the Territory, it shall also notify Merck Serono, at the time of such election, whether Licensee requests
from  Merck  Serono  the  assignment  of  all  its  right,  title  and  interest  in  and  to  any  such  Merck  Serono  Patent  in  such  country.  If
Licensee  does  not  request  from  Merck  Serono  such  assignment  of  a  Merck  Serono  Patent,  Merck  Serono  shall  file,  prosecute  or
maintain a Merck Serono Patent in a country or possession in the Territory and such

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Merck  Serono  Patent  shall  remain  a  Merck  Patent  under  which  royalty  payments  shall  be  due  by  Licensee  under Article  4  of  this
Agreement.  If  Licensee  does  request  from  Merck  Serono  the  assignment  of  Merck  Serono  Patent  in  a  country  or  possession  in  the
Territory, such Merck Serono Patent shall become a Licensee Patent under which no royalty payments in such country or possession in
the  Territory  shall  be  due  by  Licensee  under  this  Agreement,  and  Licensee  shall  thereupon  be  responsible  for  all  costs  of  filing,
prosecution and maintenance of such new Licensee Patent for aforesaid country or possession in the Territory.

(d)

Patent Term Extension. Merck Serono shall be responsible for obtaining patent term extensions wherever
available  for  Merck  Serono  Patents,  at  Merck  Serono  costs.  Licensee  shall  provide  Merck  Serono  with  all  relevant  information,
documentation and assistance in this respect. Any such assistance, supply of information and consultation shall be provided promptly
and in a manner that will ensure that all patent term extensions for Licensed Products are obtained wherever legally permissible, and
to  the  maximum  extent  available.  In  the  event  that  any  election  with  respect  to  obtaining  patent  term  extensions  is  to  be  made,
Licensee shall have the right to make such elections, and Merck Serono shall abide by all such elections.

5.5

Enforcement of Patents.

(a)

Notice. If either Party believes that a Merck Serono Patent is being infringed by a Third Party or if a Third
Party claims that any Merck Serono Patent is invalid or unenforceable, the Party possessing such knowledge or belief shall notify the
other Party and provide it with details of such infringement or claim that are known by such Party.

(b)

Right  to  bring  an  Action.  Merck  Serono  shall  have  the  exclusive  right  to  attempt  to  resolve  such
infringement or claim pertaining to a Merck Serono Patent, including by filing an infringement suit, defending against such claim or
taking  other  similar  action  (each,  an  “Action”)  and  to  compromise  or  settle  such  infringement  or  claim.  If  Merck  Serono  does  not
intend to prosecute or defend an Action, Merck Serono shall promptly inform Licensee in writing and Licensee shall have the right to
initiate an Action. If Licensee does not initiate an Action with respect to such an infringement or claim within one hundred and eighty
(180) days following notice thereof, Merck Serono shall have the right to attempt to resolve such infringement or claim. The Party
initiating the Action shall have the sole and exclusive right to select counsel for any suit initiated by it pursuant to this Section 5.5.
Each Party shall have the right to join an Action relating to a Merck Serono-Patent taken by the other Party, at its own expense.

Costs of an Action. Subject to the respective indemnity obligations of the Parties set forth in Article 8, the
Party taking an Action under Section 5.5 (b) shall pay all costs associated with such Action, other than the expenses of the other Party
if the other Party elects to join such Action.

(c)

(d)

Settlement.  Neither  Party  shall  settle  or  otherwise  compromise  any Action  by  admitting  that  any  Merck
Serono Patent is invalid or unenforceable without the other Party’s prior written consent, and, in the case of Licensee, Licensee may
not  settle  or  otherwise  compromise  an Action  in  a  way  that  adversely  affects  or  would  be  reasonably  expected  to  adversely  effect
Merck Serono’s rights or benefits hereunder with respect to the Licensed Product, without Merck Serono’s prior written consent. The
settlement will be treated in accordance with the law of the country to which the settlement relates.

(e)

Reasonable  Assistance.  The  Party  not  enforcing  or  defending  Merck  Serono-Patents  shall  provide
reasonable  assistance  to  the  other  Party,  including  providing  access  to  relevant  documents  and  other  evidence  and  making  its
employees available, subject to the other Party’s reimbursement of any out-of-pocket expenses incurred by the non-enforcing or non-
defending Party in providing such assistance.

(f)

Distribution  of Amounts  Recovered. Any  amounts  recovered  by  the  Party  taking  an Action  pursuant  to
this Section 5.5, whether by settlement or judgment, shall be allocated in the following order: (i) to reimburse the Party taking such
Action for any costs incurred, (ii) to reimburse the Party not taking such Action for its costs incurred in such Action, if it joins such
Action; and (iii) the remaining amount of such recovery shall be attributed to Licensee (as if it were Net Sales), and Licensee shall pay
to Merck Serono a royalty on such remaining amount based on the royalty rates set forth in Section 4.2.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

5.6

Third Party Actions Claiming Infringement.

(a)

Notice. If a Party becomes aware of any claim or action by a Third Party against either Party that claims
that the Licensed Product, or its use, Development, manufacture or sale infringes such Third Party’s intellectual property rights (each,
a  “Third  Party  Action”),  such  Party  shall  promptly  notify  the  other  Party  of  all  details  regarding  such  Third  Party Action  that  is
reasonably available to such Party.

(b)

Right to Defend. Merck Serono shall have the right, at its sole expense, but not the obligation, to defend a
Third Party Action through counsel of its choosing. If Merck Serono declines or fails to assert its intention to defend such Third Party
Action  within  sixty  (60)  days  of  receipt/sending  of  notice  under  Section  5.6  (a),  then  Licensee  shall  have  the  right  to  defend  such
Third  Party Action. The  Party  defending  such Third  Party Action  shall  have  the  sole  and  exclusive  right  to  select  counsel  for  such
Third Party Action. Each Party shall have the right to join any Third Party Action defended by the other Party, at its own expense.

(c)

Consultation.  The  Party  defending  a  Third  Party  Action  pursuant  to  Section  5.6  (b)  shall  be
the ”Controlling Party.” The Controlling Party shall consult with the non-Controlling Party on all material aspects of the defense. The
non-Controlling Party shall have a reasonable opportunity for meaningful participation in decision-making and formulation of defense
strategy. The Parties shall reasonably cooperate with each other in all such actions or proceedings. The non-Controlling Party will be
entitled to be represented by independent counsel of its own choice at its own expense.

(d)

Appeal. In the event that a judgment in a Third Party Action is entered against the Controlling Party and an
appeal  is  available,  the  Controlling  Party  shall  have  the  first  right,  but  not  the  obligation,  to  file  such  appeal.  In  the  event  the
Controlling Party does not desire to file such an appeal, it will promptly, in a reasonable time period (i.e., with sufficient time for the
non-Controlling Party to take whatever action may be necessary) prior to the date on which such right to appeal will lapse or otherwise
diminish,  permit  the  non-Controlling  Party  to  pursue  such  appeal  at  such  non-Controlling  Party’s  own  cost  and  expense. The  non-
Controlling Party shall then become the Controlling Party. If applicable law requires the non-Controlling Party’s involvement in an
appeal, the non-Controlling Party shall be a nominal party of the appeal and shall provide reasonable cooperation to the Controlling
Party at the Controlling Party’s expense.

Costs of an Action. Subject to the respective indemnity obligations of the Parties set forth in Article 8, the
Controlling Party shall pay all costs associated with such Third Party Action other than the expenses of the other Party if the other
Party elects to join such Action.

(e)

No  Settlement  Without  Consent.  No  Controlling  Party  shall  settle  or  otherwise  compromise  any  Third
Party Action by admitting that any Merck Serono Patent is invalid or unenforceable without the non-Controlling Party’s prior written
consent.

(f)

ARTICLE 6

CONFIDENTIALITY

6.1

Confidentiality Obligations. Each Party agrees that, for the Term and for [*] years thereafter, such Party shall, and
shall  ensure  that  its  officers,  directors,  employees,  agents  and  Sublicensees  shall  keep  completely  confidential  and  not  publish  or
otherwise disclose and not use for any purpose, except as expressly permitted hereunder, any Confidential Information disclosed to it
by the other Party pursuant to this Agreement. The foregoing obligations shall not apply to any Confidential Information disclosed by
a Party hereunder to the extent that the receiving Party can demonstrate that such Confidential Information:

at the time of disclosure;

(a)

was already known to the receiving Party or its Affiliates, other than under an obligation of confidentiality,

the receiving Party;

(b)

was generally available to the public or otherwise part of the public domain at the time of its disclosure to

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

other than through any act or omission of the receiving Party in breach of this Agreement;

(c)

became  generally  available  to  the  public  or  otherwise  part  of  the  public  domain  after  its  disclosure  and

(d)

was  subsequently  lawfully  disclosed  to  the  receiving  Party  or  its Affiliates  by  a  Third  Party  without  an

obligation of confidentiality other than in contravention of a confidentiality obligation of such Third Party to the disclosing Party; or

access to the Confidential Information of the disclosing Party.

(e)

was  developed  or  discovered  by  employees  or  agents  of  the  receiving  Party  or  its Affiliates  who  had  no

Notwithstanding  the  above  obligations  of  confidentiality  and  non-use,  a  Party  may  disclose  information  to  the  extent  that

such disclosure is reasonably necessary in connection with:

(i)

(ii)

filing or prosecuting patent applications, subject to the terms of Section 5.3;

prosecuting or defending litigation;

(iii)

conducting pre-clinical studies or Clinical Trials;

(iv)

seeking Regulatory Approval of the Licensed Product; or

on which a Party’s securities are listed or traded;

(v)

complying with applicable law, including securities law and the rules of any securities exchange or market

(vi)

due diligence performed by a Third Party in connection with either Party’s business development activities,

subject to such Third Parties being bound by written obligations of confidentiality that are at least as stringent as the ones herein.

In addition, in connection with any permitted filing by either Party of this Agreement with any Governmental Body, included
but  not  limited  to  the  U.S.  Securities  and  Exchange  Commission Agreement,  the  filing  Party  shall  endeavor  to  obtain  confidential
treatment of economic, trade secret information and such other information as may be requested by the other Party, and shall provide
the other Party with the proposed confidential treatment request with reasonable time for such other Party to provide comments, and
shall  include  in  such  confidential  treatment  request  all  reasonable  comments  of  the  other  Party.  The  filing  Party  shall,  where
reasonably  practicable,  give  such  advance  notice  to  the  other  Party  of  such  disclosure  requirement  as  is  reasonable  under  the
circumstances and will use its reasonable efforts to cooperate with the other Party in order to secure confidential treatment of such
Confidential Information required to be disclosed.

6.2

Publications.  Licensee  shall  not  publish  any  information  relating  to  the  Licensed  Compounds  or  the  Licensed
Products without the written consent of Merck Serono, which consent shall not be unreasonably withheld. Licensee shall submit to
Merck  Serono  for  Merck  Serono’s  written  consent  any  publication,  presentation  or  abstract  of  information  related  to  the  Licensed
Product for review and approval at least thirty (30) days prior to submission. In case Merck Serono does not object to said proposed
publication,  presentation  or  abstract  within  said  thirty  (30)  day  deadline,  Merck  Serono  shall  be  deemed  to  have  approved  said
publication, presentation or abstract.

6.3

Press  Releases  and  Disclosure.  Licensee  may  not  make  any  subsequent  press  release  or  public  announcements
regarding  this Agreement  or  any  matter  covered  by  this Agreement,  including  the  Development  or  Commercialization  of  Licensed
Products,  without  the  prior  written  consent  of  Merck  Serono  (which  consent  shall  not  be  unreasonably  withheld).  In  case  Merck
Serono does not object to said press release within ten (10) business days’ deadline, Merck Serono shall be deemed to have approved
the said Press Release. In the event that Licensee believes it is required to issue a press release or make an other public announcement
to  comply  with  applicable  law  as  a  publicly-traded  company  and  Merck  Serono  does  not  believe  such  public  announcement  is  so
required, Licensee may only issue such press release if (a) it obtains an opinion of legal counsel, from a reputable law firm approved
by Merck Serono, that it is required to make such disclosure to comply with applicable law and (b) after receiving such opinion,

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

provides the text of such planned disclosure to Merck Serono no less than seven (7) days prior to disclosure, and has incorporated all
reasonable comments of Merck Serono regarding such disclosure.

ARTICLE 7

REPRESENTATIONS AND WARRANTIES

7.1

Merck Serono representations and warranties. Merck Serono represents and warranties to the Licensee that:

Merck  Serono  has  the  full  power,  authority  and  right  to  enter  into  this  Agreement  and  to  perform  its
obligations  hereunder  in  accordance  with  the  terms  and  conditions  hereof,  and  all  requisite  corporate  action  has  been  taken  to
authorize Merck Serono’s execution, delivery and performance of this Agreement;

(a)

(b)

The  execution,  delivery  and  performance  of  this Agreement  by  Merck  Serono  does  not  breach,  violate,
contravene or constitute a default under any contract, arrangement or commitment to which Merck Serono is a party or by which it is
bound, or violate any statute, law or regulation or any court, governmental body or administrative or other agency having jurisdiction
over Merck Serono; and

to be obtained by Merck Serono in connection with the execution, delivery and performance of this Agreement have been obtained.

(c)

All consents, approvals and authorizations from all governmental authorities or other Third Parties required

(d)

Merck Serono has all right, title and interest in and to the Merck Serono Technology, and Merck Serono has
not previously licensed, assigned, transferred, or otherwise conveyed any right, title or interest in and to the Merck Serono Technology
to  any  Third  Party,  including  but  not  limited  to  any  rights  to  any  Licensed  Compounds  and  Licensed  Products;  the  Merck  Serono
Technology is free and clear of any liens, charges, encumbrances or rights of others to possession or use.

(e)

No claims have been asserted, or, to Merck Serono’s knowledge, threatened by any Person, nor are there
any  valid  grounds  for  any  claim  of  any  such  kind  (i)  challenging  the  validity,  effectiveness,  or  ownership  of  Merck  Serono
Technology, and/or (ii) to the effect that the use, reproduction, modification, manufacturing, distribution, licensing, sublicensing, sale
or any other exercise of rights in any of Merck Serono Technology infringes or will infringe on any intellectual property right of any
Person. No such claims have been asserted or, to the knowledge of Merck Serono, are threatened.

(f)

MERCK SERONO DISCLAIMS ALL OTHER WARRANTIES EXPRESS OR IMPLIED, INCLUDING
WITHOUT LIMITATION, WARRANTIES TO TITLE OR NON-INFRINGEMENT, TO FREEDOM TO OPERATE, OR IMPLIED
WARRANTIES  OF  MERCHANTABILITY  OR  FITNESS  OF  LICENSED  COMPOUND/LICENSED  PRODUCT  FOR  A
PARTICULAR PURPOSE.

7.2

Licensee representations and warranties. Licensee represents and warranties to Merck Serono that:

Licensee has the full power, authority and right to enter into this Agreement and to perform its obligations
hereunder in accordance with the terms and conditions hereof, and all requisite corporate action has been taken to authorize Licensee’s
execution, delivery and performance of this Agreement;

(a)

(b)

The  execution,  delivery  and  performance  of  this  Agreement  by  Licensee  does  not  breach,  violate,
contravene  or  constitute  a  default  under  any  contract,  arrangement  or  commitment  to  which  Licensee  is  a  party  or  by  which  it  is
bound, or violate any statute, law or regulation or any court, governmental body or administrative or other agency having jurisdiction
over Licensee; and

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

to be obtained by Licensee in connection with the execution, delivery and performance of this Agreement have been obtained.

(c)

All consents, approvals and authorizations from all governmental authorities or other Third Parties required

ARTICLE 8

INDEMNIFICATION

8.1

Indemnification  by  Merck  Serono.  Merck  Serono  shall  defend,  indemnify  and  hold  harmless  Licensee,  its
Affiliates, directors, employees and agents (the “Licensee Indemnitees”) from and against any and all liability, damage, loss, cost or
expense (including reasonable attorney’s fees and expenses of litigation) (“Losses”) arising or resulting from any claims made or suits
brought by Third Parties to the extent such Losses arise or result from the breach of any provision of this Agreement by Merck Serono,
including a breach of any of the Merck Serono representations and warranties set forth in Section 7.1 of this Agreement. In the event
of  a  claim  against  the  Licensee  Indemnitees  which  may  be  subject  to  the  foregoing  indemnification  obligation,  the  Licensee
Indemnitees agree to notify Merck Serono promptly of such claim and Merck Serono shall provide Licensee Indemnitees with any
assistance Licensee Indemnitees may reasonably require in the defense of such action, at Merck Serono’s cost and expense.

8.2

Indemnification  by  Licensee.  Licensee  shall  defend,  indemnify  and  hold  harmless  Merck  Serono,  its Affiliates,
directors, employees and agents (the “Merck Serono Indemnitees”) from and against any and all Losses arising or resulting from any
claims  made  or  suits  brought  by Third  Parties  to  the  extent  such  Losses  arise  or  result  from  (i)  the  breach  of  any  provision  of  this
Agreement  by  Licensee,  including  a  breach  of  any  of  the  Licensee  representations  and  warranties  set  forth  in  Section  7.2  of  this
Agreement,  and  (ii)  a  product  liability  claim  relating  to  the  Licensed  Product.  In  the  event  of  a  claim  against  the  Merck  Serono
Indemnitees  which  may  be  subject  to  the  foregoing  indemnification  obligation,  the  Merck  Serono  Indemnitees  agree  to  notify
Licensee  promptly  of  such  claim  and  Licensee  shall  provide  Merck  Serono  Indemnitees  with  any  assistance  Merck  Serono
Indemnitees may reasonably require in the defense of such action, at Licensee’s cost and expense.

ARTICLE 9

TERM AND TERMINATION

9.1

Term of Agreement. This Agreement shall come into force on the Effective Date and shall continue in full force and
effect  until  the  end  of  the  last-to-expire  Royalty  Term  in  any  country  with  respect  to  a  Licensed  Product,  unless  the Agreement  is
terminated at an earlier date pursuant to Article 9.2 to 9.6 below ( the “Term”). As of the effective date of expiration of the Royalty
Term in any country of the Territory, the license from Merck Serono to Licensee under Article 2 in such country shall convert to a
fully paid, royalty free, irrevocable, perpetual, exclusive, and sublicensable license under the Merck Serono Technology to research,
Develop,  manufacture,  make,  have  made,  use,  import,  export,  Commercialize,  offer  for  sale  and  sell  the  Licensed  Products  in  said
country.

9.2

Termination of the Agreement by Licensee for convenience. At any time during the Term, Licensee may, at its

convenience, terminate this Agreement in its entirety upon ninety (90) days prior written notice to Merck Serono.

9.3

Termination for Non-Payment. If Licensee has not paid the Upfront Payment or a royalty payment by the required
respective payment dates set forth in Section 4.1 and 4.2, Merck Serono shall have the right to terminate this Agreement with ninety
(90) days prior notice to Licensee, unless Licensee has proceeded to payment within the period of such notice. Such termination shall
be in addition to and not in lieu of any other remedies available to Merck Serono, at law and in equity.

9.4

Termination for Breach Either Party may terminate this Agreement, and the rights and licenses granted hereunder,
with ninety (90) days prior notice to the other Party if the other Party breaches any material provision of this Agreement, unless the
other Party cures such breach within the period of such notice.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

9.5

No  Immediate  Termination  on  Bankruptcy.  To  the  extent  permitted  by  applicable  law,  all  rights  and  licenses
granted pursuant to this Agreement by a Party to the other Party shall not be terminated upon a Bankruptcy Event of such Party or its
Affiliates,  and  each  Party  hereby  claims  the  benefit  of  any  applicable  law  which  may  enable  it  to  prevent  such  termination.  In  the
event of a Bankruptcy Event of Licensee, the Licensee shall, during the 24-month period following such Bankruptcy Event, seek to
enter  into  one  or  several  Sublicense  agreements  for  the  Territory  with  one  or  several  Sublicensees. Any  such  Sublicense  shall  be
subject to the terms of Section 2.2. If, upon expiry of the 24-month period Licensee has failed to enter into one or more definitive
Sublicense agreement(s), Merck Serono shall have the right to terminate this Agreement and to exercise its rights under Section 9.7.
During the aforementioned 24-month period, Licensee shall continue to prosecute and maintain the Licensee Patents, if any, and shall
use appropriate safeguards in order for the value and usefulness of the Licensee Know-How to be preserved.

9.6

No Challenge. In the event that Licensee or any of its Affiliates or Sublicensee, anywhere in the world, institutes,
prosecutes or otherwise participates in (or in any way aids any Third Party in instituting, prosecuting or participating in), at law or in
equity or before any administrative or regulatory body, including the U.S. Patent and Trademark Office or its foreign counterparts, any
claim, demand, action or cause of action for declaratory relief, damages or any other remedy, or for an enjoinment, injunction or any
other equitable remedy, including any interference, re-examination, opposition or any similar proceeding, alleging that any claim in a
Merck  Serono  Patent  is  invalid,  unenforceable  or  otherwise  not  patentable,  except  in  the  case  where  asserted  as  a  defense  or
counterclaim to an action brought by Merck Serono against Licensee or any of its Affiliates or Sublicensee, Merck Serono shall have
the  right  (i)  to  terminate  this Agreement  as  a  whole  or  (ii)  to  terminate  the  license  granted  to  Licensee  or  Sublicensee  under  such
challenged Merck Serono Patent on a patent-by-patent basis.

9.7

Effects of Termination.

(a)

Accrued  Rights  and  Obligations.  Termination  of  this Agreement  shall  not  release  either  Party  from  its
obligations  accrued  prior  to  the  effective  date  of  termination  nor  deprive  either  Party  from  any  rights  that  this Agreement  provides
shall survive termination. The provisions of Article 6 (Confidentiality), Article 8 (Indemnification), Section 9.6 (No Challenge) and
9.7 (Effects of Termination) shall survive any termination of this Agreement.

(b)

Termination by Licensee pursuant to Section 9.2 or by Merck Serono pursuant to Sections 9.3, 9.4,
9.5 or 9.6. Upon any termination of this Agreement by Licensee pursuant to Section 9.2 or by Merck Serono pursuant to Sections 9.3,
9.4,  9.5  or  9.6  (being  understood  that  the  effects  mentioned  below  will  occur  only  to  the  extent  permitted  by  applicable  law  if  the
termination results from the application of Section 9.5 on bankruptcy):

(1)

all licenses granted to Licensee under Section 2.1 shall terminate;

Licensee shall return to Merck Serono (or at Merck Serono’s request, destroy) all relevant records
and materials (including Merck Serono Materials) in its possession or control containing or comprising the Merck Serono Know-How
or such other Confidential Information of Merck Serono.

(2)

Licensee shall automatically grant Merck Serono an exclusive, sublicensable, royalty-free license
under  the  Licensee  Patents  and  the  Licensee  Know-How,  if  any,  to  research,  Develop,  make,  have  made,  import,  export,  use  and
Commercialize the Licensed Products in the Field in the Territory.

(3)

(4)

Licensee shall promptly and fully disclose and transfer to Merck Serono the Licensee Know How;

(5)

Licensee shall, upon written request by Merck Serono and subject to Merck Serono assuming legal
responsibility for any Clinical Trials of the Licensed Product then ongoing, transfer to Merck Serono, at Licensee’s cost and expense,
all  regulatory  documentation  and  Regulatory Approvals  prepared  or  obtained  by  or  on  behalf  of  Licensee  prior  to  the  date  of  such
termination, to the extent solely related to Licensed Products and transferable;

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

with respect to the Licensed Product, or at Merck Serono’s option, transfer such Clinical Trials to Merck Serono at Licensee’s cost;

(6)

To the extent not prohibited by law, Licensee shall either wind down any ongoing Clinical Trials

Licensee  shall,  at  Merck  Serono’s  option,  transfer  to  Merck  Serono  free  of  charge  any  and  all
chemical,  biological  or  physical  materials  relating  to  or  comprising  the  Licensed  Products,  including  clinical  supplies  of  Licensed
Products, that are owned or Controlled by Licensee.

(7)

(8)

Licensee  and  its  Affiliates  and  Sublicensees  shall  be  entitled,  during  the  eighteen  (18)  month
period following such termination, to sell any commercial inventory of Licensed Products which remains on hand as of the date of the
termination, so long as Licensee pays to Merck Serono the royalties applicable to said subsequent sales in accordance with the terms
and conditions set forth in this Agreement. Any commercial inventory remaining following such eighteen (18) month period shall be
offered for sale to Merck Serono, at a price equal to be mutually agreed upon between the Parties in good faith.

(c)

Save as set forth in Section 9.7 and to the extent permitted by applicable law, upon any termination of this
Agreement,  each  of  Licensee’s  Sublicensees  shall  continue  to  have  the  rights  and  license  set  forth  in  their  respective  Sublicense
agreements, which agreements shall be automatically assigned to Merck Serono, provided however, that such Sublicensee is not then
in breach of any of its material obligations under its Sublicense agreement and provided further that the terms of the Sublicense are at
least as favourable as the ones herein and do not impose any obligations on Merck Serono that are not expressly set forth herein.

ARTICLE 10

MISCELLANEOUS

10.1

Relationship of the Parties. Nothing in this Agreement is intended or shall be deemed to constitute a partnership,

agency, joint venture or employer-employee relationship between the Parties.

10.2

Assignment.

(a)

Except as expressly provided herein, neither this Agreement nor any interest hereunder shall be assignable,
nor any other obligation delegable, by Licensee without the prior written consent of Merck Serono (not to be unreasonably withheld or
delayed).  Notwithstanding  the  foregoing,  Licensee  may  assign  this  Agreement  in  whole  without  the  consent  of  Merck  Serono  to
(a) any Affiliate or (b) a successor to substantially all of the business of the Licensee to which this Agreement relates, in connection
with any company merger, company trade sale, sale of stock, sale of assets or other similar transaction.

without the consent of Licensee. Merck Serono shall give written notice to Licensee promptly following any such assignment.

(b)

Merck  Serono  may  assign  this Agreement,  in  whole  or  in  part,  to  any Affiliate  or  a  successor  in  interest

(c)

No  assignment  under  this  Section  10.2  shall  relieve  the  assigning  party  of  any  of  its  responsibilities  or
obligations  hereunder  and  provided,  further,  that  as  a  condition  of  such  assignment,  the  assignee  shall  agree  to  be  bound  by  all
obligations of the assigning Party hereunder.

(d)

(e)

This Agreement shall be binding upon the successors and permitted assigns of the Parties.

Any assignment not in accordance with this Section 10.2 shall be void.

10.3

Further Actions. Each Party agrees to execute, acknowledge and deliver such further instruments and to do all such

other acts as may be necessary or appropriate in order to carry out the purposes and intent of this Agreement.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

10.4

Accounting Procedures. Each Party shall calculate all amounts hereunder and perform other accounting procedures
required  hereunder  and  applicable  to  it  in  accordance  with  either,  as  applicable  (a)  United  States  generally  accepted  accounting
principles  (US  GAAP)  or  (b)  International  Financial  Reporting  Standard  (IFRS),  whichever  is  normally  used  by  such  Party  to
calculate its financial position, and in each case consistently applied by such Party.

10.5

Force  Majeure.  Neither  Party  shall  be  liable  to  the  other  for  failure  or  delay  in  the  performance  of  any  of  its
obligations under this Agreement for the time and to the extent such failure or delay is caused by acts of God, earthquake, riot, civil
commotion,  terrorism,  war,  strikes  or  other  labor  disputes,  fire,  flood,  failure  or  delay  of  transportation,  default  by  suppliers  or
unavailability  of  raw  materials,  governmental  acts  or  restrictions  or  any  other  reason  which  is  beyond  the  control  of  the  respective
Party. The Party affected by force majeure shall provide the other Party with full particulars thereof as soon as it becomes aware of the
same (including its best estimate of the likely extent and duration of the interference with its activities), and will use Commercially
Reasonable  Efforts  to  overcome  the  difficulties  created  thereby  and  to  resume  performance  of  its  obligations  hereunder  as  soon  as
practicable.

10.6

No Trademark Rights. No right, express or implied, is granted by this Agreement to a Party to use in any manner

the name or any other trade name or trademark of the other Party in connection with the performance of this Agreement or otherwise.

10.7

Entire Agreement of the Parties; Amendments. This Agreement and the schedules and exhibits hereto constitute
and contain the entire understanding and agreement of the Parties respecting the subject matter hereof and cancel and supersede any
and all prior negotiations, correspondence, understandings and agreements between the Parties, whether oral or written, regarding such
subject matter. No waiver, modification or amendment of any provision of this Agreement shall be valid or effective unless made in a
writing referencing this Agreement and signed by a duly authorized officer of each Party.

10.8

Captions. The captions to this Agreement are for convenience only, and are to be of no force or effect in construing

or interpreting any of the provisions of this Agreement.

10.9

Disputes. If a dispute or difference arises under or in connection with this Agreement or hereunder between Merck
Serono  and  the  Licensee,  including  but  not  limited  to  any  dispute  or  difference  as  to  its  interpretation,  validity  or  termination  (a
“Dispute”) the Parties agree first to use all reasonable endeavours in good faith to settle the Dispute. A Party claiming that a Dispute
has arisen must give notice to the other Party specifying the nature of the Dispute and requesting that the Dispute be resolved by the
Executive Officers within fifteen (15) days of their first consideration of such dispute. If the Executive Officers cannot resolve such
dispute within fifteen (15) days of their first consideration of such dispute, then, at any time after such fifteen (15) days period, either
Party may proceed to enforce any and all of its rights with respect to such dispute.

10.10 Governing Law. This Agreement shall be governed by and interpreted in accordance with the laws of Switzerland,

and will be subject to the exclusive jurisdiction of the courts of competent jurisdiction located in the Canton of Geneva.

10.11 Notices  and  Deliveries.  Any  notice,  request,  approval  or  consent  required  or  permitted  to  be  given  under  this
Agreement  shall  be  in  writing  and  shall  be  deemed  to  have  been  sufficiently  given  if  delivered  in  person,  transmitted  by  facsimile
(receipt  verified)  or  by  express  courier  service  (signature  required)  to  the  Party  to  which  it  is  directed  at  its  address  or  facsimile
number shown below or such other address or facsimile number as such Party shall have last given by notice to the other Party.

If to Merck Serono, addressed to:

ARES TRADING SA

Zone Industrielle de l’Ouriettaz
1170 Aubonne
Switzerland

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Facsimile: [*]

With a copy to:

Merck Serono S.A.

Zone Industrielle de l’Ouriettaz
1170 Aubonne
Switzerland
Attn: Legal Department
Facsimile: [*]

If to Licensee, addressed to:

OBSEVA S.A.

12, Chemin des Aulx
1228 Plan-Les-Ouates, Geneva
Switzerland
Attn: [*]

10.12 Waiver. A waiver by either Party of any of the terms and conditions of this Agreement in any instance shall not be
deemed  or  construed  to  be  a  waiver  of  such  term  or  condition  for  the  future,  or  of  any  other  term  or  condition  hereof. All  rights,
remedies,  undertakings,  obligations  and  agreements  contained  in  this Agreement  shall  be  cumulative  and  none  of  them  shall  be  in
limitation of any other remedy, right, undertaking, obligation or agreement of either Party.

10.13

Severability. When possible, each provision of this Agreement will be interpreted in such manner as to be effective
and valid under applicable law, but if any provision of this Agreement is held to be prohibited by or invalid under applicable law, such
provision will be ineffective only to the extent of such prohibition or invalidity, without invalidating the remainder of this Agreement.
The Parties shall make a good faith effort to replace the invalid or unenforceable provision with a valid one which in its economic
effect is most consistent with the invalid or unenforceable provision.

10.14 Counterparts.  This Agreement  may  be  executed  in  one  or  more  counterparts,  each  of  which  will  be  deemed  an
original,  and  all  of  which  together  will  be  deemed  to  be  one  and  the  same  instrument. A  facsimile  or  a  portable  document  format
(PDF) copy of this Agreement, including the signature pages, will be deemed an original.

{Signature page to follow}

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed and delivered in duplicate by their duly

authorized representatives with legal and binding effect as of the date first above written.

OBSEVA S.A.

ARES TRADING SA

By:  /s/ Ernest Loumaye

Name:  Ernest Loumaye

Title:  CEO

10.06.2015

By:  /s/ James Singleton

Name:  James Singleton

Title:  Authorized Representative

By:  /s/ Fabien de Ladonchamps

Name:  Fabien de Ladonchamps

By:  /s/ Cedric Hyde

Name:  Cedric Hyde

Title:  Finance Director

Title:  Authorized Representative

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

  
  
  
 
  
  
 
  
  
 
  
  
  
 
Schedule 1.23

Licensed Compounds

●

●

[*] Thiazolidine Carboxamide Derivatives as Modulators of the Prostaglandin F Receptor

[*] Thiazolidine Carboxamide Derivatives as Modulators of the Prostaglandin F Receptor

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Schedule 1.27

Merck Serono Know-How

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

[*]

Schedule 1.28

Merck Serono Materials

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

[*]

Schedule 1.29

Merck Serono Patents

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

FIRST AMENDMENT TO THE
LICENSE AGREEMENT

THIS AMENDMENT N°1 TO THE LICENSE AGREEMENT (“First Amendment”), effective as of July 8, 2016 (“First Amendment
Effective  Date”),  is  made  and  entered  into  by  and  between  ARES TRADING  SA,  a  Swiss  corporation  with  registered  offices  at  Zone
Industrielle  de  l’Ouriettaz,  1170  Aubonne,  Switzerland  (“Merck  Serono”)  and  OBSEVA  S.A.,  a  Swiss  corporation  with  registered
offices at Chemin des Aulx, 12, 1228 Plan-les-Ouates, Geneva, Switzerland (“Licensee”). Merck Serono and Licensee may be referred
to herein as the “Party” or, collectively, as the “Parties”.

WHEREAS, the Parties entered into a License Agreement on 10 June 2015 (“License Agreement”) concerning Merck Serono’s

proprietary compounds known as [*];

WHEREAS, [*], is not claimed by and not specifically disclosed in the Merck Serono Patents listed on Schedule 1.29 of the

License Agreement;

WHEREAS,  Licensee  wishes  and  Merck  Serono  agrees  to  seek  patent  protection  for  [*]  and  Licensee  instructed  Clark  and
Elbing LLP, a law firm with registered offices at 101 Federal Street Fl, 1500 Boston, MA02110, US (“C&E”) to prepare and file two
new  US  patent  applications  covering  [*]  which  were  agreed  upon  by  the  Parties  and  of  which  the  abstracts  are  attached  hereto  as
Exhibit A;

WHEREAS, the two patent applications were filed on 4 January 2016 and the U.S. Patent Application No.: [*] under attorney
docket [*] contains only Merck Serono Know-How and compounds and the U.S. Patent Application No.: [*] under attorney docket [*]
contains both, Merck Serono Know-How and Licensee Know-How;

WHEREAS, the Parties agree that the patent application [*] shall be a Merck Serono Patent according to Section 5.3 of the
License Agreement and that the patent application [*] shall be a Licensee Patent according to Section 5.4(a) of the License Agreement;
and

WHEREAS, the Parties therefore wish to amend the License Agreement as set forth herein.

NOW, THEREFORE, in consideration of the mutual covenants contained herein, and for other good and valuable consideration,

the Parties hereto, intending to be legally bound, hereby agree as follows:

Capitalized  terms  used  but  not  otherwise  defined  herein  shall  have  the  meanings  ascribed  to  such  terms  in  the  License

Agreement.

I.

Modification  of  Schedule  1.29.  The  following  patent  application  shall  be  added  to  the  Merck  Serono  Patents  in

Schedule 1.29 of the License Agreement:

[*]

II.

Reimbursement. According  to  Section  5.4(b)  of  the  License Agreement  Merck  Serono  shall  reimburse  Licensee
$8’989.75 for patent expenses incurred by Licensee in the preparation and filing of the patent application [*] and Merck shall bear all
further costs and expenses of filing, prosecution and maintaining this patent application in the Territory.

For the avoidance of doubt and in accordance with Section 5.4(a) of the License Agreement, Licensee shall solely bear all

costs and expenses of filing, prosecution and maintaining the patent application [*] in the Territory.

III.

Patent  Maintenance.  Contrary  to  what  is  provided  by  Section  5.4(b)  of  the  License Agreement,  Merck  Serono
agrees that the filing, prosecution, and maintenance of patent application [*] shall be under the responsibility of Licensee, provided
that  (i)  Licensee  coordinates  all  responses  to  office  actions,  country  selection,  filing  strategy,  enforcement  activities  and  any  other
matter related to patent application [*] with the Merck Patent

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Department  in  Darmstadt  (hereinafter  “Merck  Patent  GmbH”)  and  (ii)  Merck  Serono  via  Merck  Patent  GmbH  shall  reimburse
Licensee for all reasonable costs and out-of-pocket expenses related to the filing, prosecution, and maintenance of patent application
[*] after approval by a Merck Patent GmbH patent attorney, it being specified that such approval shall not unreasonably be withheld.
Invoices can only be processed if they are addressed to Merck Patent GmbH.

For the coordination activities described in the preceding paragraph:

(a)

Merck Patent GmbH’s contact person is [*], it being specified that Merck Patent GmbH shall be allowed to

change such contact person provided that (i) it informs Licensee in a written notice prior to such change and (ii) the newly appointed
contact person shall have the same skills and competences as the previous contact person; and

Licensee shall inform Merck Patent GmbH about the coordination activities and Merck shall participate in
the coordination activities, both in a timely manner (in particular in view of any relevant process timelines); in the event Merck Patent
GmbH fails to do so, it is understood by the Parties that Licensee shall have the right to proceed further in such relevant process.

(b)

For the avoidance of doubt, Licensee is solely responsible for filing, prosecution, maintaining and enforcement of the patent

application [*] in the Territory.

IV.

Effectiveness. This First Amendment shall become effective as of the First Amendment Effective Date.

V.

Counterparts;  Fax;  Signatures.  This  First  Amendment  may  be  executed  in  two  (2)  counterparts,  including  by
facsimile  or  PDF,  each  of  which,  when  signed  and  executed,  shall  be  deemed  to  be  an  original  and  both  of  which  together  shall
constitute the one and same document.

VI.

Full Force and Effect. Except as set forth in this First Amendment, the License Agreement shall remain unchanged.
This First Amendment, including its Exhibit A, shall be incorporated into and deemed part of the License Agreement from the First
Amendment Effective Date on, and any future reference to the License Agreement shall include the terms and conditions of this First
Amendment.

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

IN WITNESS WHEREOF, the Parties have caused this First Amendment to be executed by their duly authorized representatives.

OBSEVA S.A.

ARES TRADING SA

By:  /s/ Ernest Loumaye

Name:  Ernest Loumaye

Title:  CEO

By:  /s/ Cedric Hyde

Name:  Cedric Hyde

Title:  Authorized Representative

By:  /s/ Fabien de Ladonchamps

By:  /s/ Sebastien Boutte

Name:  Fabien de Ladonchamps

Name:  Sebastien Boutte

Title:  VP Finance

Title:  Authorized Representative

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

  
  
  
 
  
  
  
 
  
  
  
 
  
 
EXHIBIT A

[*]

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS BOTH (I)
NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Subsidiaries of the Company
XOMA Technology Ltd.
XOMA (US) LLC
XOMA UK Limited

Jurisdiction of Organization
Bermuda
Delaware
United Kingdom

Exhibit 21.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-269459, 333-151416, 333-171429, 333-174730, 333-181849, 333-198719, 333-
204367, 333-212238, 333-218378, 333-232398 and 333-265248 on Form S-8 and Registration Statement No. 333-254073 on Form S-3 of our report dated March 9,
2023, relating to the consolidated financial statements of XOMA Corporation, appearing in this Annual Report on Form 10-K for the year ended December 31, 2022.

Exhibit 23.1

/s/ Deloitte & Touche LLP
San Francisco, California
March 9, 2023

Exhibit 31.1

I, Owen Hughes, certify that:

1. I have reviewed this annual report on Form 10-K of XOMA Corporation;

Certification

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 officers 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))) for the registrant and we 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  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 officers 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 registrant’s board of directors (or persons performing the equivalent
function):

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: March 9, 2023

/s/ OWEN HUGHES
Owen Hughes
Executive Chairman of the Board of Directors and Interim
Chief Executive Officer

Exhibit 31.2

I, Thomas Burns, certify that:

1. I have reviewed this annual report on Form 10-K of XOMA Corporation;

Certification

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 officers 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))) for the registrant and we 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  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 officers 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 registrant’s board of directors (or persons performing the equivalent
function):

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: March 9, 2023

/s/ THOMAS BURNS
Thomas Burns
Senior Vice President, Finance and Chief Financial Officer

CERTIFICATION

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), Owen Hughes, Executive Chairman of the Board
of Directors and Interim Chief Executive Officer of XOMA Corporation (the “Company”), and Thomas Burns, Senior Vice President,
Finance and Chief Financial Officer of the Company, each hereby certifies that, to the best of his or her knowledge:

1. The Company’s Annual Report on Form 10-K for the year ended December 31, 2022, 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  Exhibit  32.1  fairly  presents,  in  all  material  respects,  the  financial  condition  and  results  of

operations of the Company.

IN WITNESS WHEREOF, the undersigned have set their hands hereto as of the 9th day of March, 2023

/s/ OWEN HUGHES
Owen Hughes
Executive Chairman of the Board of Directors and Interim Chief
Executive Officer

/s/ THOMAS BURNS
Thomas Burns
Senior Vice President, Finance and Chief Financial Officer

3. 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  XOMA  Corporation  under  the  Securities Act  of
1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form
10-K), irrespective of any general incorporation language contained in such filing.