Quarterlytics / Healthcare / Biotechnology / XOMA Royalty Corp.

XOMA Royalty Corp.

xoma · NASDAQ Healthcare
Claim this profile
Ticker xoma
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Employees 13
← All annual reports
FY2021 Annual Report · XOMA Royalty Corp.
Sign in to download
Loading PDF…
Table of Contents

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, 2021
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. ☐
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, 2021, was $240,018,070.

Number of shares of Registrant’s Common Stock outstanding as of March 3, 2022 was 11,319,124.

Portions of the Registrant’s Definitive Proxy Statement relating to the Company’s 2022 Annual Meeting of Stockholders are incorporated by reference into Part III of this

Report.

 
 
 
 
Table of Contents

XOMA Corporation
2021 FORM 10-K ANNUAL REPORT
TABLE OF CONTENTS

Glossary of Terms and Abbreviations

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

1

5
16
46
46
46
46

47

47
48
57
57
57
58
58
58

59
59
59
59
59

60
67
68

This  Annual  Report  on  Form  10-K  includes  trademarks,  service  marks  and  trade  names  owned  by  us  or  others.  “XOMA,”  the
XOMA  logo  and  all  other  XOMA  product  and  service  names  are  registered  or  unregistered  trademarks  of  XOMA  Corporation  or  a
subsidiary  of  XOMA  Corporation  in  the  United  States  and  in  other  selected  countries. All  trademarks,  service  marks  and  trade  names
included or incorporated by reference in this annual report are the property of their respective owners.

i

    
Table of Contents

GLOSSARY OF TERMS AND ABBREVIATIONS

Abbreviations

Definition

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

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

Affimed
Affitech
Affitech CPPA
Agenus
Agenus RPA
Anti-TGFβ Antibody License
Agreement
Aronora
Aronora RPA
AstraZeneca
ASC
ASC 310
ASC 606
Bayer
Bioasis
Bioasis RPA
BLA
B. Riley
BVF
CCPA
CARES
cGMP
Chiesi
Chiron
Chiron Collaboration Agreement

Compugen
CPPA
CPRA
EMA
ESPP
EU
FCPA
FDA
G&A
GDPR
Gevokizumab License Agreement
HCRP

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
the Company's License Agreement with Novartis dated September 30, 2015

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 606, Revenue from Contracts with Customers
Bayer Pharma AG
Bioasis Technologies, Inc. and certain affiliates
the Company's Royalty Purchase Agreement with Bioasis dated February 25, 2019
Biologic License Application
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
Compugen Ltd.
Commercial Payment Purchase Agreement
California Privacy Rights Act
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
General and administrative
General Data Protection Regulation
the Company's License Agreement with Novartis dated August 24, 2017
Healthcare Royalty Partners II, L.P.

1

Table of Contents

HCW
HIPAA
ICE®

Janssen
Kuros
Kuros RPA
Merck
NDA
NIAID
NIH
NOL
Novartis

Novartis Note Agreement
Novartis Note
Ology Bioservices

Palo
Palo RPA
Pfizer
R&D
Rezolute
Rezolute License Agreement

RPA
Roche
SEC
Second Bioasis RPA
Series A Preferred Stock
Series B Preferred Stock
Series B Depositary Shares
SOX
SVB
SVB Loan Agreement
SVB Loan
Takeda
Takeda Collaboration Agreement

Viracta
Viracta RPA
XOMA

H.C. Wainwright & Co., LLC
Federal Health Insurance Portability and Accountability Act of 1996
Innate cell engager

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
New Drug Application
National Institute of Allergy and Infectious Diseases
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 Diagnotics, Inc.
the secured note agreement with Novartis (previously Chiron) dated May 26, 2005, as amended  
the note with Novartis pursuant to the Novartis Note Agreement
Ology Bioservices Inc. (formerly Nanotherapeutics Inc., now a wholly owned subsidiary of
National Resilience, Inc.)
Palobiofarma, S.L.
the Company's Royalty Purchase Agreement with Palo dated September 26, 2019
Pfizer, Inc.
Research and development
Rezolute, Inc., formerly Antria Bio
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
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
the depositary shares, each representing 1/1000th interest in a share of Series B Preferred Stock
Sarbanes-Oxley Act of 2002
Silicon Valley Bank
the loan and security agreement with SVB dated May 7, 2018, as amended  
the loan with SVB pursuant to the SVB Loan Agreement
Takeda Pharmaceutical Company Limited
the Company's Collaboration Agreement with Takeda dated November 1, 2006, as amended in
February 2007 and February 2009
Viracta Therapeutics, Inc.
the Company's Royalty Purchase Agreement with Viracta dated March 22, 2021
XOMA Corporation, including subsidiaries

2

Table of Contents

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 potential success of our strategy as a royalty aggregator, the extent to which our issued and pending patents may protect our
products and technology, 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  probability,  amount  and  timing  of
receipt  of  those  payments,  and  our  continuing  obligation  to  pay  quarterly  cash  dividends  on  our  Series  A  Preferred  Stock  and  Series  B
Preferred Stock. 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: 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; if our therapeutic product candidates do not
receive regulatory approval, our third-party licensees will not be able to 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; and certain of our technologies are in-licensed from third
parties, so our capabilities using them may be restricted and subject to additional risks. 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.

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

3

Table of Contents

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.

● The COVID-19 pandemic has adversely impacted and could materially and adversely impact in 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 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.

● 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.

● 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 our financial condition and results of operations.

4

Table of Contents

● 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 disputes or litigation 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 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. 

Item 1.   Business

Overview and Strategy

XOMA, a Delaware corporation, 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 acquisitions of rights to future
milestones and royalties that we have made since our royalty aggregator business model was implemented in 2017. 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 pipeline by acquiring additional potential milestone and royalty revenue streams on drug product
candidates  from  third  parties.  Expanding  our  pipeline  through  these  acquisitions  can  allow  for  further  diversification  across  therapeutic
areas and development stages. Our ideal target acquisitions are in pre-commercial stages

5

Table of Contents

of  development,  have  an  expected  long  duration  of  market  exclusivity,  high  revenue  potential,  and  are  partnered  with  a  large
pharmaceutical or biopharmaceutical enterprise.

COVID-19

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, the related variants, and the timing of vaccine distribution
may impact our underlying programs in a variety of ways which are unknown in length and scope at this time.

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

AVEO Oncology

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

AV-299 (ficlatuzumab)

HGF

ROYALTY RATE

Confidential

Confidential

Low single-digit

Low single-digit

Low single-digit

Low single-digit

Low single-digit

Low single-digit

Bayer (Aronora RPA)

BAY1213790 (osocimab)

Factor XIa

Checkmate Pharmaceuticals CMP-001 (vidutolimod)

TLR9

High single-digit to double-digit

Lysosomal Storage Disorders
Enzymes

Enzyme replacement therapy Low single-digit

Chiesi (Bioasis RPA)

Compugen

Day One

Denovo Biopharma

Incyte (Agenus RPA)

Incyte (Agenus RPA)

COM902

DAY101

vosaroxin

INCAGN1876

INCAGN1949

Incyte (Agenus RPA)

INCAGN02390

Incyte (Agenus RPA)

INCAGN2385

Janssen Biotech

Janssen Biotech

Janssen Biotech

JNJ-63723283 (cetrelimab)

JNJ-63709178

JNJ-63898081

Merck (Agenus RPA)

MK-4830

TIGIT

Pan-RAF

Topoisomerase II

GITR

OX-40

TIM-3

LAG-3

PD-1

CD123xCD3

PSMAxCD3

ILT-4

6

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%

0.75%

0.75%

Low single-digit

Table of Contents

Molecular Templates

MT-0169

Novartis

Novartis

Novartis

CFZ533 (iscalimab)

VPM087 (gevokizumab)

NIS793

CD-38

CD-40

IL-1ß

TGFß

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

Ology Bioservices

Palo

Palo

Palo

Palo

Palo

Rezolute

Rezolute

Roche

Sesen Bio

Takeda

Zydus Cadila

Acquisitions

G03-52-01

PBF-680

PBF-677

PBF-999

PBF-1129

PBF-1650

RZ358

RZ402

Botulinum neurotoxins

15%

Adenosine A1 receptor

Low single-digit

Adenosine A3 receptor

Low single-digit

Adenosine A2a /
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%

oportuzumab monatox-qqrs

EpCAM

TAK-079 (mezagitamab)

IL-2/anti-IL-2 combination

CD-38

IL-2

0.875%

4%

Single to double-digit

Commercial Payment Purchase Agreement with Affitech

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 faricimab (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.  We  may  pay  up  to  an
additional  $15.0  million  to  Affitech  based  upon  the  achievement  of  certain  regulatory  approval  milestones  and  sales  milestones
representing a portion of the commercial payment receipts.

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.

7

Table of Contents

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.

Royalty Purchase Agreement with Agenus

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.

Royalty Purchase Agreement with Bioasis

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.

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.

Royalty Purchase Agreement with Aronora

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

8

Table of Contents

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.

Royalty Purchase Agreement with Palobiofarma

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 Core Pipeline

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 core pipeline.

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 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.

9

Table of Contents

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

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 2 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.

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.

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’s 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  the  prevention  of  organ
rejection in patients receiving a kidney transplant after an interim analysis of data. Novartis is continuing its iscalimab studies in indications
other than kidney transplant, for example, liver transplant, Sjögren’s Syndrome and Lupus Nephritis.

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.

10

Table of Contents

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.

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  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, 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

11

Table of Contents

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 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 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.

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.

12

Table of Contents

Competition

The  biotechnology  and  pharmaceutical  industries  are  subject  to  continuous  and  substantial  technological  change.  Some  of  the
drugs  our  licensees  or  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, or our licensees’, 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. The 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.”

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. 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.

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, and 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

13

Table of Contents

and Trademark Office with respect to biotechnology patents. Accordingly, no assurance can be given that our, or our partners or licensees’
patents will afford protection against competitors with similar products or 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 or our partners or licensees, contain
“step-down” provisions where the royalty rate is reduced following patent expiry or revocation. Below is a list of representative patents and
patent applications related to our licensed programs:

Representative
Patents/Applications

Subject matter

Expected last
expiry in family

Licensee

Novartis

Program

Anti-IL-1b

Novartis

Anti-TGFb

Rezolute

Anti-INSR

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

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

2036

2030

2036

2030

Ology Bioservices

Anti-BoNT

US 8,821,879
EP 2 473 191

Coformulations of anti- botulinum
neurotoxin antibodies

14

 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Licensee

Various

Program

Phage display
libraries

Representative
Patents/Applications
US 8,546,307
EP 2 344 686

Subject matter

XOMA phage display library components

Zydus Cadila in India,
Brazil, Mexico and
other emerging markets
Seeking out license

Anti-IL2

Anti-PTH1R

Seeking out license

Anti-PRLR

US 7,094,579
EP 2 060 628

US 10,858,428*
EP 3 518 969A2*

US 10,519,250
EP 3 490 600A1

US 7,867,493 **
EP 2 059 535 **

Interleukin-2 Antibodies and Uses Thereof

2037

Parathyroid Hormone Receptor 1
Antibodies and Uses Thereof

Prolactin receptor antibodies

2037

2027

Expected last
expiry in family
2032

2022

* Jointly owned with Medical University of South Carolina Foundation for Research Development
** Jointly owned with Novartis Vaccines and Diagnostics, Inc.

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  pipeline
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 pipeline. 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.

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.

15

 
 
 
 
 
Table of Contents

Human Capital Resources

We rely on a small number of skilled, experienced, and innovative employees to conduct the operations of our company. As of
March  3,  2022,  we  employed  12  full-time  employees  primarily  engaged  in  executive,  business  development,  legal,  finance  and
administrative positions. We also utilize independent contractors and consultants to supplement our workforce.

The success of our business is fundamentally connected to the well-being of our employees. We provide robust compensation and
benefits programs to help meet the needs of our employees. In addition to salaries, these programs include potential annual discretionary
bonuses,  broad-based  equity  awards,  a  401(k)  plan,  healthcare  and  insurance  benefits,  paid  time  off,  family  leave,  and  flexible  work
schedules, among others. These benefits provide our employees choices where possible so they can customize their benefits to meet their
needs  and  the  needs  of  their  families,  as  well  as  access  to  tools  and  resources  to  help  them  improve  or  maintain  their  health  status  and
encourage engagement in healthy behaviors to improve their physical and mental health.

In response to the COVID-19 pandemic, we have temporarily restricted access to our office in California, as well as suspended
any non-essential business travel. Our employees are conducting their work remotely, and they otherwise have minimal presence in our
offices  for  essential  activities.  The  safety,  health  and  well-being  of  our  employees  is  paramount.  As  such,  we  will  consider  ongoing
government regulations and local health conditions before allowing non-essential travel or allowing any gatherings at our offices.    

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

The  COVID-19  pandemic  has  adversely  impacted  and  could  materially  and  adversely  impact  in  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.

The  COVID-19  pandemic  has  severely  affected  global  economic  activity  and  resulted  in  the  implementation  of  significant

governmental measures, including lockdowns, closures, quarantines and travel bans, intended to control the spread of the virus.

The COVID-19 pandemic 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,  including  difficulties  in  recruiting  clinical  site  investigators  and  clinical  site

staff;

● 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;

16

Table of Contents

● interruption  of  key  clinical  trial  activities,  such  as  clinical  trial  site  monitoring,  due  to  limitations  on  travel  imposed  or

recommended by federal, state or local governments, employers and others;

● 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, such as the investigational

drug product used in their clinical trials;

● 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;

● changes in FDA, state and local regulation (and those of their foreign counterparts if applicable) as part of a response to the
COVID-19  pandemic  which  may  change  the  ways  in  which  clinical  trials  are  conducted  or  discontinue  clinical  trials
altogether;

● delays  in  necessary  interactions  with  regulators,  ethics  committees  and  other  important  agencies  and  contractors  due  to

limitations in employee resources or forced furlough of government employees;

● delay in the timing of other interactions with the FDA due to absenteeism by federal employees or by the diversion of their

efforts and attention to approval of other therapeutics or other activities related to COVID-19; and

● refusal of the FDA to accept data from clinical trials in affected geographies outside the United States or of foreign regulatory

authorities to accept data from clinical trials in affected areas outside their applicable countries.

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, mutations in the COVID-19 virus, travel restrictions and social distancing in
the United States and other countries, business closures or business disruptions and the effectiveness of actions taken in the United States
and other countries to contain and treat the disease.

The COVID-19 pandemic continues to pose risks to our business, including at our headquarters in Emeryville, California, which has in
the  past  been  subject  to  local  and  statewide  “stay-at-home”  orders  issued  by  Alameda  County  and  the  Governor  of  the  State  of
California, as well as the business or operations of our partners and other third parties with whom we conduct business.

The  COVID-19  pandemic  has  resulted  in  extended  travel  and  other  continued  restrictions  in  order  to  reduce  the  spread  of  the
disease, including California executive orders, San Francisco Bay Area orders and several other state and local orders across the United
States, which, among other things, direct individuals to continue to shelter at their places of residence, direct businesses and governmental
agencies  to  cease  non-essential  operations  at  physical  locations,  prohibit  certain  non-essential  gatherings,  and  order  cessation  of  non-
essential  travel.  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 response to these public health directives and orders, we previously implemented a work-from-home policy for all employees.
We  have  been  able  to  maintain  our  operations  and  productivity  thus  far;  however,  prolonged  working  remotely  may  negatively  impact
productivity, disrupt our business and delay our timelines, the magnitude of which will depend, in part, on the length and severity of the
restrictions and other limitations on our ability to conduct our business in the ordinary course.

17

Table of Contents

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 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 caused a broad impact globally, 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.

The evolving effects of the COVID-19 pandemic have already resulted in significant disruption of global financial markets. 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.

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  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 on 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.

18

Table of Contents

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.

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.

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.

19

Table of Contents

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;

● 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

20

Table of Contents

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 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.

21

Table of Contents

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 $13.3 million and positive cash flows from operations of $22.7 million and $10.1 million for the years
ended December 31, 2021 and 2020, respectively, we had an accumulated deficit of $1.2 billion as of December 31, 2021. 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.

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. 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 At The Market Issuance Sales Agreement, as
amended  (the  “2018  Common  Stock  ATM  Agreement”)  and  to  our  2021  Series  B  Preferred  Stock  At  The  Market  Issuance  Sales
Agreement (the “2021 Series B Preferred Stock ATM Agreement”). Our Series A Preferred Stock and Series B Preferred Stock, while not
dilutive, includes dividends and required that we establish a segregated cash account adequate to fund the dividends. 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

22

Table of Contents

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 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 beginning April 15, 2021. 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 beginning July 15, 2021. As of December 31, 2021, we held restricted cash of $2.0 million in a
segregated account that may only be used to pay dividends on our Series A and Series B Preferred Stock.

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.

At December 31, 2021, 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, 2021, 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.

23

Table of Contents

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.

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 operations.

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 for 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  operations.  For  example,  in  September  2021,  Novartis  announced  its
decision to discontinue its study of CFZ533 (iscalimab) in the prevention of organ rejection in patients receiving a kidney transplant after
an interim analysis of data. In addition, should

24

Table of Contents

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.

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 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

25

Table of Contents

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 operations. 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 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  collaborative
arrangements  to  develop  and  commercialize  our  unpartnered  assets.  Generally,  our  current  collaborative  partners  also  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 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.

26

Table of Contents

Failure of our potential milestone and royalty providers’ product candidates to meet current Good Manufacturing Practices standards
may subject our licensees to 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’ capabilities 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 Our Milestone 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.

27

Table of Contents

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 product candidates, including:

● clinical development and testing;

● manufacturing;

● labeling;

● storage;

● record keeping;

● promotion and marketing; and

● importing and exporting.

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

28

Table of Contents

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 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

29

Table of Contents

● 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. Many of these competitors
may  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

30

Table of Contents

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.

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.

31

Table of Contents

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 past, we were
party to product liability claims filed against Genentech Inc. and, even though Genentech agreed to indemnify us in connection with these
matters and these matters have been settled, there can be no assurance other product liability lawsuits will not result in defense costs and/or
liability to us or that our insurance or contractual arrangements will provide us with adequate protection against such liabilities. 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 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 our 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.

32

Table of Contents

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 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.

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.

We may be required to engage in litigation 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  this
litigation, even if resolved in our favor, could be substantial and parties to such litigation may be able to sustain the cost of such litigation
and  proceedings  more  effectively  than  we  can  if  they  have  substantially  greater  resources  than  us.  Such  litigation  and  any  negotiations
leading up to it also may be time-consuming and could

33

Table of Contents

divert management’s attention and resources. If this litigation is resolved against us, we may lose the value associated with contract rights
contained  in  our  arrangements  with  licensees  and  third  parties,  our  patents  may  be  declared  invalid,  and  we  could  be  held  liable  for
significant damages. While it is our current plan to 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 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 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.

Uncertainties resulting from our participation in intellectual property litigation or other proceedings could have a material adverse
effect on our 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  future  potential  milestone  or  royalty  interests,  or  intellectual  property  could  be  diminished.
Accordingly, the market price of our common stock may decline. Uncertainties resulting from the initiation and continuation of intellectual
property litigation or other proceedings could have a material adverse effect of our business, financial condition and results of operation.

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.  Furthermore,  in  December
2021,  we  announced  James  R.  Neal  notified  us  of  his  decision  to  retire  as  our  Chief  Executive  Officer,  effective  at  the  earlier  of  (i)
December 31, 2022, or (ii) the date we hire a new Chief Executive Officer.  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 employees as of March 3, 2022. 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.

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.

While Mr. Neal has agreed to continue as the Chairman and Chief Executive Officer as per the terms of the separation agreement,
there can be no assurance that a replacement will be found on a timely basis, or at all. Our inability to find a suitable replacement may have
a detrimental impact on the organization and impede the progress of our research, development and commercialization objectives.

34

Table of Contents

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.

Natural disasters, power shortages, power interruptions or other calamities at our Emeryville headquarters could disrupt our business
and adversely affect our operations.

Our  corporate  headquarters  is  located  in  Emeryville,  California.  This  location  is  in  an  area  of  seismic  activity  near  active
earthquake faults. Any earthquake, tsunami, terrorist attack, riot, fire, power shortage or other calamity affecting our facilities may disrupt
our business and could have material adverse effect on our results of operations.

If  a  natural  disaster,  power  outage  or  other  event  occurred  that  prevented  us  from  using  all  or  a  significant  portion  of  our
headquarters, that damaged critical infrastructure or that otherwise disrupted operations, it may be difficult or, in certain cases, impossible
for us to continue our business for a substantial period of time. We may incur substantial expenses as a result of the limited nature of our
disaster recovery and business continuity plans, which, particularly when taken together with our lack of earthquake insurance, could have
a material adverse effect on our business.

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. The loss
of  clinical  trial  data  from  completed  or  future  clinical  trials  could  result  in  delays  in  our  regulatory  approval  efforts  and  significantly
increase our costs to recover or reproduce the data. Similarly, we rely on third parties to manufacture our product candidates, and conduct
clinical trials of our product candidates, and similar events relating to their computer systems could also have a material adverse effect on
our  business.  To  the  extent  that  any  disruption  or  security  breach  were  to  result  in  a  loss  of,  or  damage  to,  our  data  or  applications,  or
inappropriate  disclosure  of  confidential  or  proprietary  information,  we  could  incur  liability  and  the  development  of  any  of  our  product
candidates could be delayed or otherwise adversely affected.

35

Table of Contents

If our information technology systems or data are or were compromised by data breaches, cyberattacks, or other security incidents our
intellectual  property  or  other  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; loss of customers or sales; 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  addition,  our  data  security  and  information  technology  systems,  as  well  as  those  of  our  partners  and  contractors,  are  potentially
vulnerable  to  data  security  breaches,  whether  by  employees  or  others,  that  may  expose  sensitive  data  or  personal  information  to
unauthorized persons.

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  customers  and  business  partners.  The  secure
maintenance  and  protection  of  this  information  is  critical  to  our  business  and  reputation.  We  believe  companies  have  been  increasingly
subject to a wide variety of security incidents, cyberattacks and other attempts to gain unauthorized access. These threats can come from a
variety of sources, all ranging in sophistication from a person with authorized access to our network, to an individual hacker, to a state-
sponsored attack. Cyber threats may be intentional or accidental, generic or commodity in nature, or they may be custom-crafted against
our  information  systems.  Cyberattacks  have  become  more  prevalent  and  much  harder  to  detect  and  defend  against.  Our  network  and
storage  applications  may  be  subject  to  unauthorized  access  by  hackers  or  breached  due  to  operator  error,  malfeasance  or  other  system
disruptions.  It  is  often  difficult  to  anticipate  or  immediately  detect  such  incidents  and  the  damage  caused  by  such  incidents.  These  data
breaches and any unauthorized access or disclosure of our information or intellectual property could compromise our intellectual property
and expose sensitive business information. A data security breach could also lead to public exposure of personal information of our clinical
trial patients, customers and others which could expose us to liability under foreign, federal, or state privacy laws. Cyberattacks can result
in the theft of proprietary information which 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 such
events.

We  are  subject  to  stringent  and  changing  obligations  related  to  data  privacy  and  security.  Significant  disruptions  of  information
technology  systems,  including  cloud-based  systems,  or  breaches  of  data  security  could  adversely  affect  our  business.  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.

We  process  sensitive  and  confidential  information  (including  personal  data),  which  subjects  us  to  various  obligations  related  to
data privacy and security (e.g., U.S. and foreign law, regulations, guidance, industry standards, policies, contracts, and other obligations).
 For example, the EU implemented in 2018 the GDPR a broad data protection

36

Table of Contents

framework that expands the scope of current EU data protection law to non-European Union entities that process, or control the processing
of, the personal information of EU subjects, including clinical trial data. The GDPR allows for the imposition of fines and/or corrective
action on entities that improperly use or disclose the personal information of EU subjects, including through a data security breach.

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.  Additionally,  although  not
effective until January 1, 2023, the CPRA, which expands upon the CCPA, was passed in the election on November 3, 2020. The CCPA
gives (and the CPRA will 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. For example, on March 2, 2021, Virginia enacted the Virginia
Consumer  Data  Protection  Act,  or  CDPA,  which  becomes  effective  on  January  1,  2023,  and  on  June  8,  2021,  Colorado  enacted  the
Colorado Privacy Act, or CPA, which takes effect on July 1, 2023.  

Complying  with  the  GDPR,  CCPA,  CPRA,  CDPA,  CPA,  or  other  laws,  regulations,  amendments  to  or  re-interpretations  of
existing laws and regulations, and contractual or other obligations relating to privacy, data protection, data transfers, data localization, or
information  security  may  require  us  to  make  changes  to  our  business  to  enable  us  to  meet  new  legal  requirements,  incur  substantial
operational costs, modify our data practices and policies, and restrict our business operations.  Further, data incidents experienced by us,
our partners or contractors 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;

● 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.

37

Table of Contents

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,  our  licensees  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  our  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. There have been judicial, Congressional and executive branch challenges to certain aspects of the
ACA, as well as efforts by the Trump administration to repeal or replace certain aspects of the ACA.  Since January 2017, former President
Trump  signed  several  executive  orders  and  other  directives  designed  to  delay,  circumvent,  or  loosen  certain  requirements  mandated  by
ACA. Concurrently, Congress considered legislation that would repeal or repeal and replace all or part of ACA. While Congress has not
passed comprehensive repeal legislation, several bills affecting the implementation of certain taxes under the ACA have been signed into
law.  The  Tax  Cuts  and  Jobs  Act  of  2017,  or  Tax  Act,  includes  a  provision  repealing,  effective  January  1,  2019,  the  tax-based  shared
responsibility payment imposed by ACA on certain individuals who fail to maintain qualifying health coverage for all or part of a year that
is  commonly  referred  to  as  the  “individual  mandate”.  In  addition,  the  2020  federal  spending  package  permanently  eliminated,  effective
January 1, 2020, the ACA-mandated “Cadillac” tax on high-cost employer-sponsored health coverage and medical device tax and, effective
January l, 2021, also eliminated the health insurer tax. The Bipartisan Budget Act of 2018, or the BBA, among other things, amends the
ACA,  effective  January  1,  2019,  to  increase  from  50  percent  to  70  percent  the  point-of-sale  discount  that  is  owed  by  pharmaceutical
manufacturers who participate in Medicare Part D and close the coverage gap in most Medicare drug plans, commonly referred to as the
“donut  hole”.  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.  Thus,  the  ACA  will  remain  in  effect  in  its
current form. Further, prior to the U.S. Supreme Court ruling, President Biden issued an executive order that initiated a special enrollment
period  from  February  15,  2021  through  August  15,  2021  for  purposes  of  obtaining  health  insurance  coverage  through  the  ACA
marketplace. The executive order also instructed certain governmental agencies to review and reconsider their existing policies and rules
that  limit  access  to  healthcare,  including  among  others,  reexamining  Medicaid  demonstration  projects  and  waiver  programs  that  include
work requirements, and policies that create unnecessary barriers to obtaining access to health insurance coverage through Medicaid or the
ACA.  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 will impact the ACA and our business.

38

Table of Contents

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, including the BBA and the Infrastructure Investment and Jobs Act, will remain in effect
through 2031 unless additional Congressional action is taken. However, COVID-19 relief support legislation suspended the 2% Medicare
sequester from May 1, 2020 through March 31, 2022. Under current legislation the actual reduction in Medicare payments will vary from
1%  in  2022  to  up  to  3%  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. At the
federal level, the Trump administration used several means to propose or implement drug pricing reform, including through federal budget
proposals,  executive  orders  and  policy  initiatives.  For  example,  on  July  24,  2020  and  September  13,  2020,  the  Trump  administration
announced several executive orders related to prescription drug pricing that attempt to implement several of the administration’s proposals.
The FDA concurrently released a final rule and guidance in September 2020, implementing a portion of the importation executive order
providing  pathways  for  states  to  build  and  submit  importation  plans  for  drugs  from  Canada.  Further,  on  November  20,  2020,  the  U.S.
Department  of  Health  and  Human  Services,  or  HHS  finalized  a  regulation  removing  safe  harbor  protection  for  price  reductions  from
pharmaceutical  manufacturers  to  plan  sponsors  under  Part  D,  either  directly  or  through  pharmacy  benefit  managers,  unless  the  price
reduction is required by law. The implementation of the rule has been delayed by the Biden administration from January 1, 2022 to January
1, 2023 in response to ongoing litigation. The rule also creates a new safe harbor for price reductions reflected at the point-of-sale, as well
as  a  new  safe  harbor  for  certain  fixed  fee  arrangements  between  pharmacy  benefit  managers  and  manufacturers,  the  implementation  of
which have also been delayed pending review by the Biden administration until January 1, 2023. On November 20, 2020, the Centers for
Medicare  &  Medicaid  Services,  or  CMS  issued  an  interim  final  rule  implementing  former  President  Trump’s  Most  Favored  Nation
executive  order,  which  would  tie  Medicare  Part  B  payments  for  certain  physician-administered  drugs  to  the  lowest  price  paid  in  other
economically  advanced  countries,  effective  January  1,  2021.  As  a  result  of  litigation  challenging  the  Most  Favored  Nation  model,  on
December 27, 2021, CMS published a final rule that rescinded the Most Favored Nation Model interim final rule. 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,  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, Congress is considering drug pricing as part of other reform initiatives. 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.  Moreover,  there  has  been  heightened  governmental  scrutiny  in  the  United  States  of  pharmaceutical
pricing practices in light of the rising cost of prescription drugs and biologics. Such scrutiny has resulted in several recent congressional
inquiries  and  proposed  and  enacted  federal  and  state  legislation  designed  to,  among  other  things,  bring  more  transparency  to  product
pricing,  review  the  relationship  between  pricing  and  manufacturer  patient  programs,  and  reform  government  program  reimbursement
methodologies  for  products.  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

39

Table of Contents

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.

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.

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.

40

Table of Contents

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.

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

41

Table of Contents

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  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, 2021, through March 3, 2022, the share price of our common stock has ranged from a high of $44.50 to a low of $19.08.
From January 1, 2021, through March 3, 2022, the share price of our Series A Preferred Stock has ranged from a high of $27.57 to a low of
$24.88. From April 12, 2021, through March 3, 2022, the share price of our Series B Preferred Stock has ranged from a high of $27.95 to a
low of $24.05. Additionally, we have two significant holders of our common stock that could

42

Table of Contents

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.

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, 2021, 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, 2021, BVF
owned approximately 31.2% 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 April 9, 2021, 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.

43

Table of Contents

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

44

Table of Contents

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 net operating loss carry-forwards and other tax attributes will be substantially limited by Section 382 of the U.S.
Internal Revenue Code.

Under  the  federal  income  tax  law,  federal  net  operating  losses  incurred  in  2018  and  in  future  years  may  be  carried  forward
indefinitely,  but  the  deductibility  of  such  federal  net  operating  losses  is  limited.  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,  and  corresponding
provisions of state law, generally limit the ability of a corporation that undergoes an “ownership change” to utilize its net operating loss
carry-forwards (“NOLs”) and certain other tax attributes against any taxable income in taxable periods after the ownership change. The
amount of taxable income in each taxable year after the ownership change that may be offset by pre-change NOLs and certain other pre-
change tax attributes is generally equal to the product of (a) the fair market value of the corporation’s outstanding shares (or, in the case of
a  foreign  corporation,  the  fair  market  value  of  items  treated  as  connected  with  the  conduct  of  a  trade  or  business  in  the  United  States)
immediately prior to the ownership change and (b) the long-term tax exempt rate (i.e., a rate of interest established by the U.S. Internal
Revenue Service that fluctuates from month to month). In general, an “ownership change” occurs whenever the percentage of the shares of
a corporation owned, directly or indirectly, by “5-percent shareholders” (within the meaning of Section 382 of the Internal Revenue Code)
increases by more than 50 percentage points over the lowest percentage of the shares of such corporation owned, directly or indirectly, by
such “5-percent shareholders” at any time over the preceding three years.

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 an annual limitation), we experienced an ownership change in February 2017, when
we completed an equity financing for net proceeds of $24.8 million that significantly impacted the availability of our tax attributes against
future income. Further, due to the existence of a net unrealized built-in loss at the ownership change date, Section 382 further limits our
ability  to  fully  utilize  the  tax  deductions  associated  with  certain  of  our  assets,  including  depreciation  and  amortization  deductions
recognized during the 60-month period following the ownership change ending in 2022. Although these deductions will occur in the post-
change period, Section 382 treats the deductions as pre-change losses subject to the annual 382 limitation. As of December 31, 2021, we
have excluded the NOLs and research and development credits that will expire as a result of the annual limitations. 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.

The 2017 tax reform law, as modified by 2020 tax legislation, and possible future changes in tax laws or regulations could adversely
affect our business and financial condition.

On December 22, 2017, former President Trump signed into law comprehensive tax legislation (the “Tax Cuts and Jobs Act”) that
significantly  revised  the  Internal  Revenue  Code  of  1986,  as  amended  (the  “Code”).  Future  guidance  from  the  U.S.  Internal  Revenue
Service and other tax authorities with respect to the Tax Cuts and Jobs Act may affect us, and certain aspects of the Tax Cuts and Jobs Act
could be repealed or modified in future legislation. For example, on March 27, 2020, the CARES Act was enacted, which includes changes
to the tax provisions that benefit business entities and makes certain technical corrections to the Tax Cuts and Jobs Act. On June 29, 2020,
California Assembly Bill 85 (AB 85) was signed into law, which suspends the use of California net operating losses and limits the use of
California  research  tax  credits  for  tax  years  beginning  in  2020  and  before  2023.  Changes  in  corporate  tax  rates,  the  realization  of  net
deferred tax assets relating to our U.S. operations, the taxation of foreign earnings, and the deductibility of expenses under the Tax Cuts and
Jobs Act, the CARES Act, or future tax reform legislation could have a material impact on the value of our deferred tax assets, could result
in significant one-time charges in future taxable years, and could increase our future U.S. tax expense. The foregoing items, as well as any
other  future  changes  in  tax  laws,  could  have  a  material  adverse  effect  on  our  business,  cash  flow,  financial  condition,  or  results  of
operations. In addition, it is uncertain if and to what extent various states will conform to the Tax Cuts and Jobs Act, the CARES Act, or
any newly enacted federal tax legislation.

45

Table of Contents

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.

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  building  lease
expires  in  February  2023,  and  total  net  lease  liability  from  January  2022  until  expiration  of  the  lease  is  $0.2  million.  We  believe  our
facilities are adequate to meet our requirements for the near term.

Item 3.   Legal Proceedings

From time to time, we may be involved in litigation relating to claims arising out of our operations. We are not currently involved
in any material legal proceedings. We may, however, be involved in material legal proceedings in the future. Such matters are subject to
uncertainty and there can be no assurance that such legal proceedings 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.

46

Table of Contents

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 3, 2022, there were 196 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

47

Table of Contents

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

Overview

XOMA, a Delaware corporation, 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 $13.3 million and positive cash flows from
operations of $22.7 million and $10.1 million for the years ended December 31, 2021 and 2020, respectively, we do not expect these results
to be indicative of future performance. The payments we received from Novartis pursuant to our Anti-TGFβ Antibody License Agreement
in  2021  and  2020  of  $35.0  million  and  $25.0  million,  respectively,  were  one-time  milestone  payments  that  do  not  represent  recurring
revenue.

Significant Developments

Royalty and Commercial Payment Purchase Agreements

Commercial Payment Purchase Agreement with Affitech

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  faricimab
(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. We may pay up to an
additional  $15.0  million  to  Affitech  based  upon  the  achievement  of  certain  regulatory  approval  milestones  and  sales  milestones
representing a portion of the commercial payment receipts.

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.

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

48

Table of Contents

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.  

License and Collaboration Agreements

Rezolute – RZ358 Antibody

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.

Novartis – Anti-TGFβ Antibody

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 any net product sales that
range from the mid single-digit to the low double-digit percentage rates. 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.

Novartis – Anti-CD40 Antibody

In  September  2021,  Novartis  announced  its  decision  to  discontinue  its  study  of  CFZ533  (iscalimab)  in  the  prevention  of  organ
rejection  in  patients  receiving  a  kidney  transplant  after  an  interim  analysis  of  data.  Novartis  is  continuing  other  iscalimab  studies  in
indications other than kidney transplant, for example, liver transplant, Sjögren’s Syndrome and Lupus Nephritis.

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.

Janssen

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.

Public Offering of Series B Depositary Shares Representing Interest in Series B Preferred Stock

In April 2021, we closed a public offering of 1,600,000 Series B Depositary Shares at the price of $25.00 per Series B Depositary
Share. Total gross proceeds from the offering were $40.0 million. 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.

49

Table of Contents

NIAID Contract Closeout

Prior  to  the  sale  of  our  biodefense  business  in  2016,  we  performed  contract  work  for  the  U.S.  government  under  multi-year
contracts  funded  with  federal  funds  from  NIAID.  The  contract  work  was  performed  on  a  cost  plus  fixed  fee  basis  and  invoices  were
provisional  until  finalized.  As  such,  we  operated  under  provisional  rates  from  2010  through  2015,  subject  to  adjustment  based  on  final
approved rates upon agreement with the government. In 2019, NIH engaged KPMG to perform an audit of our incurred cost submissions
for 2013, 2014 and 2015, and, based on the results of KPMG’s procedures, which were completed in December 2020, we recognized an
estimated refund liability representing amounts owed to NIH of $1.4 million on our consolidated balance sheet as of December 31, 2020. In
December 2021, NIH completed its review of the audit as part of the related contract close-out process, which included the finalization of
rates for years 2010 through 2015, and approved a finalized refund liability of $1.3 million. The $0.1 million reduction in the liability, from
its  previously  recorded  $1.4  million  estimated  amount,  was  recognized  as  an  increase  of  revenue  from  contracts  with  customers  in  the
consolidated statement of operations and comprehensive income for the year ended December 31, 2021. In December 2021, we paid the
final  amount  owed  to  NIH  of  $1.3  million  and  no  balance  of  the  contingent  liability  remained  on  the  consolidated  balance  sheets  as  of
December 31, 2021.

Debt Extinguishment

Novartis Note

In  June  2021,  we  repaid  our  outstanding  principal  balance  to  Novartis  of  $9.1  million.  No  amount  was  recorded  as  an
extinguishment gain or loss in other (expense) income, net of the consolidated statement of operations. No outstanding principal balance of
the Novartis Note remained as of December 31, 2021.

SVB Loan

In June 2021, we repaid our principal balance of $6.5 million and paid the 8.5% final payment fee of $1.4 million to SVB. We
recognized a non-cash loss on extinguishment of $0.3 million in other (expense) income, net of the consolidated statement of operations.
No outstanding principal balance of the SVB Loan remained as of December 31, 2021.

COVID-19

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 have and may
further 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,  the  related  variants,  and  the  timing  of
vaccine distribution may impact our underlying programs in a variety of ways which are unknown in length and scope at this time.

Critical Accounting Estimates

A summary of the significant accounting policies is provided in Note 2 to our Consolidated Financial Statements. 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.

50

Table of Contents

Management considers an accounting estimate to be critical if:

● it requires a significant level of estimation uncertainty; and

● changes in the estimate are reasonably likely to have a material effect 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.

Revenue Recognition

We recognize 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. We recognize revenue when our customer
obtains control of promised goods or services, in an amount that reflects the consideration which we expect to receive in exchange for those
goods or services.

We have certain license arrangements in the scope of ASC 606. The terms of these agreements may contain multiple performance
obligations,  which  primarily  include  transfer  of  our  licenses.  Prior  to  recognizing  revenue,  we  make  estimates  of  the  transaction  price,
including variable consideration that is subject to a constraint. Amounts of variable consideration are included in the transaction price to the
extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur and when the uncertainty
associated  with  the  variable  consideration  is  subsequently  resolved.  Variable  consideration  may  include  payments  based  upon  the
achievement  of  specified  milestones,  and  royalty  payments  based  on  product  sales  derived  from  the  license  agreements.  The  royalty
payments will be recognized as revenue when the related sales occur, as far as there are no unsatisfied performance obligations remaining.
If there are multiple distinct performance obligations, we allocate the transaction price to each distinct performance obligation based on its
relative standalone selling price. All licenses we grant to customers are unique, as each uses a specific technology of XOMA or is geared
towards  a  specific  unique  product  candidate.  Thus,  there  is  no  observable  evidence  of  standalone  selling  price  for  the  licenses.  The
standalone selling price is generally determined using a valuation approach based on discounted cash flow analysis. For licenses that are
bundled with other promises, we utilize 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 our license agreements, the nature of the combined
performance obligation is the granting of licenses to the customers. As such, we recognize revenue related to the combined performance
obligation upon transfer of the license to the customers or completion of the transfer of related materials and services (i.e., point in time).

Sale of Future Revenue Streams

In 2016, prior to the implementation of our royalty aggregator business model, we sold our rights to receive certain milestones and
royalties  on  product  sales  pursuant  to  our  agreement  with  HCRP.  We  defer  recognition  of  the  proceeds  we  received  from  HCRP  and
recognize such unearned revenue as revenue under the 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 HCRP over the term of the arrangement requires management to use
subjective  estimates  and  assumptions.  Changes  to  our  estimate  of  the  payments  expected  to  be  made  to  HCRP  over  the  term  of  the
arrangement could have a material effect on the amount of revenues recognized in any particular period.

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 option pricing model (the “Black-Scholes Model”). This model requires highly complex

51

Table of Contents

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.

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.

We  account  for  milestone  and  royalty  rights  related  to  developmental  pipeline  products  on  a  non-accrual  basis  using  the  cost
recovery method. Except for faricimab, 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. Faricimab (faricimab-svoa) received FDA approval in January 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.

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 income.

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, 2021.

52

Table of Contents

Results of Operations

Revenues

Total revenues for the years ended December 31, 2021 and 2020, 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, 

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

2020
$  27,941
 1,444
$  29,385

     Change
$  8,577
 198
$  8,775

Revenue  from  contracts  with  customers  includes  upfront  fees,  annual  licenses  fees  and  milestone  payments  related  to  the  out-
licensing  of  our  product  candidates  and  technologies.  The  primary  components  of  revenue  from  contracts  with  customers  in  2021  was
$35.0  million  in  milestone  revenue  earned  under  our  Anti-TGFβ  Antibody  License  Agreement  with  Novartis,  $0.5  million  of  milestone
revenue recognized in the third quarter of 2021 under our license agreement with Compugen and $0.5 million and $0.2 million of milestone
revenue recognized in the second and fourth quarter of 2021, respectively, related to milestone events under our license agreement with
Janssen. The primary components of revenue from contracts with customers in 2020 was $25.0 million in milestone revenue earned under
our Anti-TGFβ Antibody License Agreement with Novartis and $2.0 million earned under our collaboration agreement with Takeda. The
milestones received from Novartis in 2021 and 2020 are one-time payments and do not represent recurring revenue.

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 2021 compared with 2020 was due to increased sales of products underlying the agreements
with HCRP.

R&D Expenses

R&D expenses were consistent at $0.2 million in 2021 and 2020. We do not expect to incur substantial internal R&D expenses in

2022 due to the focus on our royalty aggregator business model.

G&A Expenses

G&A expenses include salaries and related personnel costs, professional fees, and facilities costs. In 2021, G&A expenses were

$20.5 million compared with $16.8 million in 2020.

The  increase  of  $3.7  million  in  2021  as  compared  with  2020  was  primarily  due  to  a  $2.2  million  increase  in  stock-based
compensation expense for stock options, $0.8 million increase in salary and related expenses, $0.4 million increase in legal and consulting
costs and $0.2 million increase in insurance costs.

53

    
    
 
 
Table of Contents

Other (Expense) Income

Interest Expense

Amortization of debt issuance costs and discounts are included in interest expense. Interest expense is shown below for the years

ended December 31, 2021 and 2020 (in thousands):

Year Ended
December 31, 

SVB Loan
Novartis Note
Other
Total interest expense

$

$

2021

     Change

 373
 88
 —  
 461

2020
$  1,365

 477  
 2  

$  1,844

$

 (992)
 (389)
 (2)
$  (1,383)

The decrease in interest expense compared with 2020 is due to the repayment of our SVB and Novartis loans in June 2021. We
expect our interest expense to further decrease in 2022 as we have no outstanding loan balances, however if we elect to obtain new debt
financing, our interest expense may increase.

Other (Expense) Income, Net

The  following  table  shows  the  activity  in  other  (expense)  income,  net  for  the  years  ended  December  31,  2021  and  2020  (in

thousands):

Other (expense) income, net

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

Year Ended
December 31, 

2021

2020

Change

$

$

 (919)
 35
 5
 (879)

$

$

 1,012
 159
 54
 1,225

$

$

 (1,931)
 (124)
 (49)
 (2,104)

The fluctuation in other (expense) income, net for 2021 as compared to 2020, is primarily due to the change in fair value of equity

securities which consist of shares of Rezolute’s common stock.

We own equity securities consisting of shares of Rezolute’s common stock which are remeasured at fair value at each reporting
period. During the years ended December 31, 2021 and 2020, we remeasured the fair value of the equity securities and recognized a loss of
$0.9 million and a gain of $1.0 million, respectively.

The decrease in investment income for 2021 as compared to the same period of 2020 is due to lower rates of return on our cash

deposits.

Provision for Income Taxes

We recorded a $1.5 million income tax benefit for the year ended December 31, 2020, as a result of the CARES Act, which was
enacted on March 27, 2020. The CARES Act permits us to carry back losses from 2018 to offset income in 2017 resulting in an income tax
receivable. During the second quarter of 2021, we received $1.5 million in cash for our income tax receivable. We recorded a $0.1 million
income tax expense for the year ended December 31, 2021.

We  continue  to  maintain  a  full  valuation  allowance  against  our  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.

54

    
    
 
 
 
    
    
    
 
 
 
 
Table of Contents

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
Working capital

Net cash provided by operating activities
Net cash used in investing activities
Net cash provided by financing activities
Net increase in cash

December 31, 
2021
 93,328
 84,006

$
$

December 31,
2020
 84,222
 75,763

$
$

     Change
$  9,106
$  8,243

Year Ended December 31, 

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

$

$

2020
$  10,092
 (209)
 19,793
$  29,676

$

Change
 12,586
 (26,291)
 (6,958)
$  (20,663)

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. Our primary source of cash provided by operating activities in 2020 was the $17.7 million cash portion of the $25.0 million
milestone received from Novartis, partially offset by our operating expenses of $17.0 million, less non-cash expenses including stock-based
compensation of $4.0 million.

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 investing activities for the year ended December 31, 2020 of $0.2
million was due to the purchase of milestone and royalty rights of $1.2 million in connection with the Second Bioasis RPA in November
2020, partially offset by $1.0 million milestone payment received in connection with the Agenus RPA.

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.
Net cash provided by financing activities for the year ended December 31, 2020, of $19.8 million was primarily due to the receipt of net
cash proceeds of $22.6 million from the public offering of Series A Preferred Stock and $2.4 million net cash provided from the exercise of
stock options after related tax payments, partially offset by $5.3 million cash used in the principal payments of debt.

Capital Resources

As of December 31, 2021, we had $93.3 million and $2.0 million in unrestricted and restricted cash, respectively. 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.

Our planned spending includes increased personnel related costs to hire a new CEO and fund our employee retention efforts.  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 2022 in response to an anticipated
increase in the volume of acquisition targets evaluated or completed.

55

    
    
    
    
    
 
 
 
 
 
Table of Contents

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 2020 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  12  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.

Our  recent  financing  activities  are  summarized  below  and  described  in  more  detail  in  Note  12  of  our  Consolidated  Financial

Statements:

● Public  Offering  of  Series  A  Preferred  Stock:  In  December  2020,  we  sold  984,000  shares  of  8.625%  Series  A  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 net proceeds of $22.6
million.

● Public  Offering  of  Depositary  Shares  Representing  Interest  in  Series  B  Preferred  Stock:  In  April  2021,  we  closed  a
public  offering  of  1,600,000  Series  B  Depositary  Shares  at  the  price  of  $25.00  per  depositary  share.  Total  gross  proceeds
from the offering were $40.0 million. 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.

● Novartis Note Extinguishment: In June 2021, we repaid our outstanding principal balance to Novartis of $9.1 million. No
amount  was  recorded  as  an  extinguishment  gain  or  loss  in  other  (expense)  income,  net  of  the  consolidated  statement  of
operations. No outstanding principal balance of the Novartis Note remained as of December 31, 2021.

● SVB Loan Extinguishment: In June 2021, we repaid our principal balance of $6.5 million and paid the 8.5% final payment
fee of $1.4 million to SVB. We recognized a non-cash loss on extinguishment of $0.3 million in other (expense) income, net
of the consolidated statement of operations. No outstanding principal balance of the SVB Loan remained as of December 31,
2021.

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 headquarters lease expires in February 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 and CPPAs: 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 $8.1 million recorded on our consolidated balance sheets as of December 31,
2021, for development and regulatory approval milestones due under our agreements with Affitech and Bioasis.  We paid $5.0 million in
regulatory approval milestones to Affitech in January 2022 and expect the remaining $3.1 million contingent payments may become due in
the near term.  We have evaluated and concluded our existing capital resources are adequate to meet those needs.

56

Table of Contents

We also have potential sales-based milestones that may become due under our agreements with Aronora, Kuros and Affitech. All
of these sales-based milestones 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 have not been recorded on our
consolidated balance sheet as of December 31, 2021. 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 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 Comprehensive 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

Not applicable.

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

57

Table of Contents

Item 9A.       Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including our Chief Executive Officer 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  Chief  Executive  Officer  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  Chief  Executive
Officer  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  Chief  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
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, 2021. 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, 2021, 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. While COVID-19 resulted in our staff operating remotely, our established internal control structure is not impacted. As
we continue to monitor and adapt to the changing environment due to COVID-19, we will continue to evaluate our internal controls over
financial reporting.

Item 9B.       Other Information

None.

Item 9C.       Disclosure Regarding Foreign Jurisdiction that Prevents Inspections

None.

58

Table of Contents

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  2022  Annual  Meeting  of
Stockholders (“2022 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 2022 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 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,  2021,”  “Pension  Benefits,”  “Non-Qualified  Deferred
Compensation” and “Compensation of Directors” appearing in our 2022 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 2022 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

2022 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 2022 Proxy Statement and is incorporated by reference.

59

Table of Contents

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 to the Amended Certificate of
Incorporation of XOMA Corporation

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

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

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

8-K

000-14710

3.1

05/28/2014

8-K

000-14710

3.1

10/18/2016

8-K

000-14710

3.1

02/16/2017

8-K

000-14710

3.1

12/11/2020

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

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

60

    
    
    
    
Table of Contents

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†

10.8†

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, effective as of 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

000-14710

Appendix   
A

04/05/2019

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 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

10-Q/A

000-14710

10.43

12/04/2002

10-K

000-14710

10.24C

03/11/2009

10-K

000-14710

10.25B

03/14/2012

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

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

61

    
    
    
    
Table of Contents

Exhibit
Number

10.9†

10.10†

10.11

10.12

10.13†

10.14

10.15†

10.16

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

10-Q

000-14710

10.4

11/06/2015

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-Q

000-14710

10.1

08/10/2015

10-Q

000-14710

10.2

11/06/2015

10-K

000-14710

10.60

03/16/2017

Amendment to Amended and Restated Research,
Development and Commercialization Agreement, dated
September 30, 2015, by and between XOMA (US) LLC
and Novartis Vaccines and Diagnostics, Inc. (formerly
Chiron Corporation)

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

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

License Agreement, dated September 30, 2015, by and
between XOMA (US) LLC and Novartis Institutes for
Biomedical Research, 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.

10.17

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

10-K

000-14710

10.61

03/16/2017

62

    
    
    
    
Table of Contents

Exhibit
Number

10.18

10.19

10.20

10.21†

10.22†

10.23

10.24†

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

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.

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

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.))

63

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

10-Q

000-14710

10.2

11/06/2017

10-Q

000-14710

10.3

11/06/2017

10-Q

000-14710

10.4

11/06/2017

10-Q

000-14710

10.5

11/06/2017

    
    
    
    
Table of Contents

Exhibit
Number

10.25†

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

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

10-Q

000-14710

10.6

11/06/2017

10.26+*

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

10.27*

10.28*

10.29*

10.30†

10.31†

10.32†

10.33†

Officer Employment Agreement, dated August 7, 2017,
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 January 3, 2011,
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 October 28, 2015,
between XOMA Corporation and Thomas Burns

10-Q

000-14710

10.8

11/06/2017

10-Q

000-14710

10.9

11/06/2017

10-Q

000-14710

10.10

11/06/2017

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

10-Q

000-14710

10.9

11/07/2018

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)

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

64

    
    
    
    
Table of Contents

Exhibit
Number

10.34

10.35#

10.36#

10.37#

10.38#

10.39#

10.40

10.41

10.42

10.43

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

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

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

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

License Agreement between the Company and Novartis
International Pharmaceutical Ltd., dated September 30,
2015 (this exhibit was previously filed under confidential
treatment request as Exhibit 10.2 to Form 10-Q filed
November 6, 2015)

Amendment to Amended and Restated Research,
Development and Commercialization Agreement,
between the Company and Novartis Vaccine and
Diagnostics, Inc., dated September 30, 2015 (this exhibit
was previously filed under confidential treatment request
as Exhibit 10.4 to Form 10-Q filed November 6, 2015)

Collaboration and License Agreement, dated as of March
5, 2020, by and between XOMA (US) LLC and Cadila
Healthcare Limited

Form of Amended and Restated Indemnification
Agreement for Directors and Officers

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

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.

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

65

8-K

000-14710

10.1

12/18/2018

10-Q

000-14710

10.1

08/06/2019

10-Q

000-14710

10.1

11/05/2019

10-Q

000-14710

10.1

11/05/2020

10-Q

000-14710

10.2

11/05/2020

10-Q

000-14710

10.1

05/05/2020

10-K

001-39801

10.56

03/10/2021

10-K

001-39801

10.57

03/10/2021

10-K

001-39801

10.58

03/10/2021

10-K

001-39801

10.59

03/10/2021

    
    
    
    
Table of Contents

Exhibit
Number

10.44#

10.45#

10.46#

10.47#

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

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

10-Q

001-39801

10.1

05/06/2021

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

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

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

10-Q

001-39801

10.1

08/05/2021

10-Q

001-39801

10.2

11/04/2021

8-K

001-39801

10.1

08/05/2021

10.48 + #

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

21.1+

23.1+

24.1+

31.1+

31.2+

32.1+

Subsidiaries of the Company

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

Power of Attorney (included on the signature pages
hereto)

Certification of Chief Executive Officer, 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 Chief Executive Officer 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)(1)

101.INS+

Inline XBRL Instance Document

101.SCH+

Inline XBRL Taxonomy Extension Schema Document

101.CAL+

Inline XBRL Taxonomy Extension Calculation Linkbase
Document

66

    
    
    
    
Table of Contents

Exhibit
Number

101.DEF+

Exhibit Description

Form      SEC File No.

Exhibit

Filing Date

Incorporation By Reference

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.

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.

67

    
    
    
    
Table of Contents

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

report to be signed on its behalf by the undersigned, thereunto duly authorized, on this 8th day of March 2022.

SIGNATURES

XOMA Corporation

By:

/s/ JAMES R. NEAL
James R. Neal
Chief Executive Officer and Chairman

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints James
Neal 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/ James R. Neal
(James R. Neal)

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

/s/ Thomas Burns
(Thomas Burns)

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

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

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

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

/s/ Matthew Perry
(Matthew Perry)

/s/ Barbara Kosacz
(Barbara Kosacz)

/s/ Natasha Hernday
(Natasha Hernday)

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

Director

Director

Director

Director

Director

Director

Director

68

March 8, 2022

March 8, 2022

March 8, 2022

March 8, 2022

March 8, 2022

March 8, 2022

March 8, 2022

March 8, 2022

March 8, 2022

    
    
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 Comprehensive Income
Consolidated Statements of Stockholders’ Equity
Consolidated Statements of Cash Flows
Notes to the Consolidated Financial Statements

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

69

Table of Contents

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, 2021 and 2020, the related consolidated statements of operations and comprehensive income, stockholders' equity, and cash
flows, for the each of the two years in the period ended December 31, 2021, 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,  2021  and  2020,  and  the  results  of  its  operations  and  its  cash  flows  for  the  each  of  the  two  years  in  the  period  ended
December 31, 2021, 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.

Long-Term Royalty and Commercial Payment Receivables — 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.  As of December 31, 2021, the carrying value
of the long-term royalty and commercial payment receivables (“milestone and royalty rights”) is $69.1 million. The Company accounts for
milestone  and  royalty  rights  on  a  non-accrual  basis  using  the  cost  recovery  method.  The  milestone  and  royalty  rights  relate  to
developmental pipeline products which are non-commercialized, non-approved products that require FDA or other regulatory approval, and
thus have uncertain cash flows. Management assesses any impairment indicators and changes in expected recoverability of the long-term
receivable asset regularly.

F-1

Table of Contents

The  determination  of  impairment  indicators  requires  obtaining  and  assessing  all  available  information  regarding  the
developmental  pipeline  products  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 8, 2022  

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

F-2

Table of Contents

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

ASSETS

Current assets:

Cash
Restricted cash
Short-term equity securities
Trade and other receivables, net
Income tax receivable
Prepaid expenses and other current assets

Total current assets

Long-term restricted cash
Property and equipment, net
Operating lease right-of-use assets
Long-term royalty and commercial payment receivables
Long-term equity securities
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
Contingent liabilities
Current portion of long-term debt
Preferred stock dividend accrual

Total current liabilities

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

Total liabilities

Commitments and Contingencies (Note 13)

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, 2021
and December 31, 2020
8.375% Series B cumulative, perpetual preferred stock, 1,600 and zero shares issued and outstanding at
December 31, 2021 and December 31, 2020, respectively
Convertible preferred stock, 5,003 shares issued and outstanding at December 31, 2021 and December 31, 2020
Common stock, $0.0075 par value, 277,333,332 shares authorized, 11,315,263 and 11,228,792 shares issued and
outstanding at December 31, 2021 and December 31, 2020, respectively
Additional paid-in capital
Accumulated deficit

Total stockholders’ equity

Total liabilities and stockholders’ equity

December 31, 
2021

December 31, 
2020

$

$

$

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

—
—

84,222
1,611
—
263
1,526
443
88,065
531
21
359
34,575
1,693
41
125,285

456
642
—
75
179
1,452
1,410
8,088
—
12,302
13,516
12,764
229
50
38,861

49

—
—

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

$

84
1,267,377
(1,181,086)
86,424
125,285

$

$

$

$

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

F-3

    
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

XOMA Corporation
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE 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
Total operating expenses

Income from operations

Other (expense) income, net:

Interest expense
Loss on extinguishment of debt
Other (expense) income, net
Income before income tax
Income tax (expense) benefit

Net income and comprehensive income
Net income and comprehensive income available to common stockholders (Note 11), basic
Net income and comprehensive income available to common stockholders (Note 11), diluted
Basic net income per share available to common stockholders
Diluted net income per share available to common stockholders
Weighted average shares used in computing basic net income per share available to common stockholders
Weighted average shares used in computing diluted net income per share available to common stockholders

Year Ended
December 31, 

2021

2020

$

$
$
$
$
$

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

27,941
1,444
29,385

170
16,799
16,969

12,416

(1,844)
—
1,225
11,797
1,501
13,298
8,793
9,010
0.82
0.78
10,674
11,503

$

$
$
$
$
$

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

F-4

    
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

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

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

984 $
—  
—  

—  
—  

—  

—  

—  
984 $

49
—
—

—
—

—

—

—
49

— $
2
—  

—  
—  

—  

—  

—  
2 $

—
—
—

—
—

—

—

—
—

5 $
—  
—  

—  
—  

—  

—  

—  
5 $

—  
—
—  

—  
—  

—  

—  

—  
—  

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

Series B
Preferred Stock

Convertible
Preferred Stock

Common Stock

Balance, December 31, 2019
Issuance of preferred stock
Issuance of common stock
related to Series Y preferred
stock conversion
Stock-based compensation
expense
Exercise of stock options
Issuance of common stock
related to 401(k) contribution
and ESPP
Disgorgement of stockholder's
short-swing profits
Net income and comprehensive
income
Balance, December 31, 2020

— $
984

—

—  
—  

—  

—  

—  
984 $

—
49

—

—
—

—

—

—
49

— $
—

—

—  
—  

—  

—  

—  
— $

—
—

—

—
—

—

—

—
—

6 $
—

(1)

—  
—

—  

—  

—  
5 $

—  
—

—

—  
—

—  

—  

—  
—  

Additional
Paid-In
Capital
1,267,377
37,140
(4,867)

6,195
1,052

—  

11,229 $
—  
—  

—  
77  

5  

84 $
—
—  

—  
1  

—  

Accumulated
Deficit
(1,181,086) $

$

—
—  

—  
—  

—  

—  

4  

—  

133

—  
11,315 $

—  
85 $

—  
$

1,307,030

15,798  
(1,165,288) $

Additional
Paid-In
Capital
1,238,299
22,572

(10)

3,961
2,406

136

13

Accumulated
Deficit
(1,194,384) $

$

—

—

—  
—

—  

—  

9,759 $
—

73 $
—

1,253

—  
211

6  

—  

10

—  
1

—  

—  

—  
11,229 $

—  
84 $

—  
$

1,267,377

13,298  
(1,181,086) $

Total
Stockholders’
Equity

86,424
37,140
(4,867)

6,195
1,053

—

133

15,798
141,876

Total
Stockholders’
Equity

43,988
22,621

—

3,961
2,407

136

13

13,298
86,424

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

F-5

   
  
 
 
 
 
   
  
 
 
 
Table of Contents

XOMA Corporation
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

Cash flows from operating activities:

Net income
Adjustments to reconcile net income to net cash provided by operating activities:

Stock-based compensation expense
Common stock contribution to 401(k)
Depreciation
Amortization of debt issuance costs, debt discount and final payment on debt
Non-cash portion of Novartis Milestone Payment
Reduction of contingent NIH refund liability
Non-cash lease expense
Loss on extinguishment of debt
Change in fair value of equity securities
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 provided by operating activities

Cash flows from investing activities:

Payments related to purchase of royalty rights and other commercial payment rights
Receipts related to purchased royalty rights
Purchase of property and equipment

Net cash used in investing activities

Cash flows from financing activities:

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

Net cash provided by financing activities

Net increase in cash and restricted cash
Cash and restricted cash at the beginning of the period
Cash and restricted cash at the end of the period

Supplemental Cash Flow Information:

Cash paid for interest

Non-cash investing and financing activities:

Estimated fair value of contingent consideration under the Affitech CPPA
Preferred stock dividend accrual
Interest added to principal balance on long-term debt
Accrued cost related to issuance of capital stock

Year Ended December 31, 
2021

2020

$

15,798

$

13,298

6,195
90
7
200
—
(105)
160
300
919

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

(26,500)
—
—
(26,500)

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

9,013
86,364
95,377

311

8,000
1,368
—
—

$

$

$
$
$
$

3,961
88
22
698
(7,300)
—
150
—
(1,012)

2,670
(1,526)
83
(542)
—
(163)
(1,444)
612
497
10,092

(1,200)
1,000
(9)
(209)

24,600
(1,945)
4,850
(5,313)
—
—
(2,395)
(4)
19,793

29,676
56,688
86,364

692

—
—
490
264

$

$

$
$
$
$

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

F-6

    
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
    
Table of Contents

1. Description of Business

XOMA Corporation
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

XOMA  (referred  to  as  “XOMA”  or  the  “Company”),  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  pre-commercial  therapeutic
candidates.  The  Company’s  portfolio  was  built  through  licensing  its  proprietary  products  and  platforms  from  its  legacy  discovery  and
development  business,  combined  with  the  acquisition  of  rights  to  future  milestones  and  royalties  that  the  Company  has  made  since  the
royalty aggregator business model was implemented in 2017. 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, 2021, the Company had unrestricted and restricted cash of $93.3 million and $2.0 million, respectively. The restricted cash
balance may only be used to pay dividends on the outstanding Series A Preferred Stock and the outstanding Series B Preferred Stock (Note
12).

In  June  2021,  the  Company  repaid  its  outstanding  debt  obligations  to  SVB  and  Novartis,  for  a  total  of  $17.1  million  (Note  8).
Based on the Company’s current cash balance and its ability to control discretionary spending, such as 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  generally  accepted  accounting  principles  (“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 units-of-
revenue  method,  royalty  receivables,  equity  securities,  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  billing  under  government  contracts  and
amortization of the payments received from HCRP. Under the Company’s contracts with the NIAID, a part of the NIH, the Company billed
using NIH’s provisional rates and thus is subject to future audits at the discretion of NIAID’s contracting office. In October of 2019, NIH
notified the Company that it engaged KPMG to perform an audit of the Company’s incurred cost submissions for 2013, 2014 and 2015. As
of December 31, 2020, the audit procedures were completed, and the Company adjusted its estimated liability owed to NIH to $1.4 million.
In December 2021, the NIH

F-7

Table of Contents

completed its review of the audit as part of the related contract close-out process, which included the finalization of rates for years 2010
through  2015,  and  the  Company  adjusted  its  liability  owed  to  NIH  to  $1.3  million.  In  December  2021,  the  Company  paid  the  final
approved refund liability of $1.3 million. As such, no contingent liability remained on the Company’s consolidated balance sheets as of
December 31, 2021.

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.

The  COVID-19  pandemic  has  resulted  in  a  global  slowdown  of  economic  activity  which  has  led  to  delays  and  could  result  in
further delays or terminations of some clinical trials underlying the Company’s RPAs. Estimates and assumptions about future events and
their  effects  cannot  be  determined  with  certainty  and  therefore  require  the  exercise  of  judgment.  These  estimates  may  change,  as  new
events occur and additional information is obtained, and are recognized in the consolidated financial statements as soon as they become
known. Actual results could differ from those estimates and any such differences may be material to the Company’s financial statements.

Cash and Restricted Cash

Cash  consists  of  bank  deposits  held  in  business  checking  and  interest-bearing  deposit  accounts.  As  of  December  31,  2021  and
2020,  the  Company  did  not  have  any  cash  equivalent  balances,  defined  as  highly  liquid  financial  instruments  purchased  with  original
maturities of three months or less.

Restricted cash consists of bank deposits held to pay dividends on the Company’s Series A Preferred Stock and Series B Preferred

Stock.

The Company maintains cash and restricted 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 and restricted cash.

The following table provides a reconciliation of cash 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
Restricted cash
Total cash and restricted cash

Revenue Recognition

Year Ended December 31, 
2020
2021

$

$

93,328
2,049
95,377

$

$

84,222
2,142
86,364

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 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

F-8

Table of Contents

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 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

F-9

Table of Contents

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 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 Option Pricing Model (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 (expense) income, net line item of the consolidated
statement  of  operations  and  comprehensive  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 income in the period of sale.

In October 2020, Rezolute completed a 1:50 reverse stock split of its common shares (the “Rezolute Reverse Stock Split”) and
started trading on the Nasdaq Stock Market. As a result, the Company’s number of shares of Rezolute common stock was reduced from
8,093,010  shares  (pre  reverse-split  shares)  to  161,861  shares  (post  reverse-split  shares).  All  subsequent  disclosures  of  Rezolute  share
numbers will be presented post reverse-split.

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

F-10

Table of Contents

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, 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 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 since no 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, 2021 and December 31, 2020.

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 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.

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.

F-11

Table of Contents

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.

Prior Period Reclassifications

Within  the  consolidated  statement  of  cash  flows,  the  Company  presented  principal  payments  on  its  finance  lease  and  proceeds

from disgorgement of stockholder's short-swing profits together in order for the prior period to conform with current period presentation.

Net Income per Share Attributable to Common Stockholders

The Company calculates basic and diluted income per share attributable 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 and any deemed dividends related to beneficial conversion features on convertible preferred stock, if applicable, 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 income per share attributable to common stockholders is then calculated by dividing the net 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 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.  The  calculation  of
diluted net income per share attributable to common stockholders requires that, to the extent the average market price of the underlying
shares for the reporting period exceeds the exercise price of any outstanding options or warrants, the presumed exercise of such securities
are dilutive to net income per share attributable to common stockholders for 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 Income

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

Accounting Pronouncements Recently Adopted

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The
amendments  in  ASU  2019-12  are  intended  to  simplify  various  aspects  related  to  accounting  for  income  taxes. ASU  2019-12  removes
certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application.
ASU 2019-12 is effective for the Company on January 1, 2021. The Company adopted ASU 2019-12, on January 1, 2021. The adoption of
ASU 2019-12 did not have a material impact on the Company’s consolidated financial statements.

F-12

Table of Contents

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate
Reform on Financial Reporting.  These  amendments  provide  temporary  optional  guidance  to  ease  the  potential  burden  in  accounting  for
reference  rate  reform.  The  ASU  provides  optional  expedients  and  exceptions  for  applying  generally  accepted  accounting  principles  to
contract  modifications  and  hedging  relationships,  subject  to  meeting  certain  criteria,  that  reference  LIBOR  or  another  reference  rate
expected to be discontinued. It is intended to help stakeholders during the global market-wide reference rate transition period. The guidance
is effective for all entities as of March 12, 2020 through December 31, 2022 and can be adopted as of any date from the beginning of an
interim period that includes or is subsequent to March 12, 2020. The Company adopted ASU 2020-04 as of January 1, 2021. The adoption
of this ASU did not have a material impact on the Company’s consolidated financial statements.

In  August  2020,  the  FASB  issued  ASU  2020-06,  Debt  –  Debt  with  Conversion  and  Other  Options  (Subtopic  470-20)  and
Derivative and Hedging – Contracts in Entity’s Own Equity (Subtopic 815-40). This ASU reduces the number of accounting models for
convertible debt instruments and convertible preferred stock and amends the guidance for the derivatives scope exception for contracts in
an entity’s own equity to reduce form-over-substance-based accounting conclusion. In addition, this ASU improves and amends the related
EPS  guidance.  These  amendments  are  effective  for  the  Company  for  fiscal  years  beginning  after  December  15,  2023,  including  interim
period within those fiscal years. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, including
interim periods within those fiscal years. Adoption is either a modified retrospective method or a fully retrospective method of transition.
The Company adopted  ASU  2020-06  on  January  1,  2021.  The  adoption  of  this  ASU  did  not  have  a  material  impact  on  the  Company’s
consolidated financial statements.

Recent Accounting Pronouncements

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 all
entities except public companies that are not smaller reporting companies for fiscal years beginning after December 15, 2022, including
interim  periods  within  those  fiscal  years,  using  a  modified  retrospective  approach.  Early  adoption  is  permitted.  The  Company  plans  to
adopt  ASU  2016-13  and  related  updates  as  of  January  1,  2023.  The  Company  is  currently  evaluating  the  impact  of  adopting  this  new
accounting guidance on its consolidated financial statements.

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 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
plans to adopt ASU 2021-04 and related updates on January 1, 2022. The Company does not expect the adoption of this ASU 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.
Early adoption is permitted. The Company is currently evaluating the impacts of the provisions of ASU 2021-08 and the Company does not
expect this ASU to have a material impact on its consolidated financial statements.

F-13

Table of Contents

3. Consolidated Financial Statement Detail

Equity Securities

As of December 31, 2021 and December 31, 2020, equity securities consisted of an investment in Rezolute’s common stock of
$0.8  million  and  $1.7  million,  respectively  (Note  4).  For  the  years  ended  December  31,  2021  and  December  31,  2020,  the  Company
recognized a loss of $0.9 million and a gain of $1.0 million, respectively, due to the change in fair value of its investment in Rezolute’s
common stock in the other (expense) income, net line item of the consolidated statements of operations and comprehensive income.

Accrued and Other Liabilities

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

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

Total

4. Licensing and Other Arrangements

Novartis – Anti-TGFβ Antibody (NIS793)

December 31, 
2021

December 31, 
2020

295
135
55
40
525

$

351
136
71
84
642

$

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’s  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 which was recognized as license fees in the consolidated statement of operations and comprehensive income.

The Company concluded that the development and regulatory milestone payments are solely dependent on Novartis’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

F-14

    
    
 
 
Table of Contents

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’s 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.

On October 21, 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.

On October 20, 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 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, 2021 and December 31, 2020, there are 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 $35.0 million and $25.0 million as revenue
from contracts with customers in the consolidated statement of operations and comprehensive income for the years ended December 31,
2021 and 2020, respectively.

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

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

F-15

Table of Contents

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 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, 2021 and December 31, 2020, there are 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, 2021 and 2020.

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

F-16

Table of Contents

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.

As of December 31, 2021 and December 31, 2020, there are no contract assets or contract liabilities related to this arrangement
and none of the costs to obtain or fulfill the contract were capitalized. During the years ended December 31, 2021 and 2020, the Company
recognized annual license fee revenue of $0.1 million from Takeda. On November 16, 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.  The  Company  is  eligible  to  receive
remaining milestones up to a total of $16.0 million under the Takeda Collaboration Agreement. During the years ended December 31, 2021
and  2020,  the  Company  recognized  $0.1  million  and  $2.1  million,  respectively,  as  revenue  from  contracts  with  customers  in  the
consolidated statement of operations and comprehensive income.  

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. 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

F-17

Table of Contents

permitted by applicable laws, the Company has 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 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 achievement of financing activities and $8.5 million in installment
payments through October 2020. The Company also received 161,861 shares of Rezolute’s common stock.

As of December 31, 2021 and December 31, 2020, 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 did not recognize any revenue related to this arrangement
during the years ended December 31, 2021 and 2020.

The  Company  reassessed  the  development  and  regulatory  milestones  and  concluded  that  such  variable  consideration  is  fully

constrained and excluded from the transaction price as of December 31, 2021 and 2020.   

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 in the consolidated statement of operations and comprehensive loss 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, 2021 and December 31, 2020, there were no contract assets or contract liabilities related to this arrangement.
None of the costs to obtain or fulfill the contract were capitalized. Milestone revenue of $0.7 million and $0.4 million was recognized for
the years ended December 31, 2021 and 2020, respectively.

F-18

Table of Contents

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, 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 for the year ended December 31, 2021.

NIAID

Prior  to  the  sale  of  the  Company’s  biodefense  business  in  2016,  the  Company  performed  services  under  contracts  funded  with
federal funds from NIAID including under a $64.8 million multiple-year contract (Contract No. HHSN272200800028C), for development
of  anti-botulinum  antibody  product  candidates  and  a  $28.0  million  multiple-year  contract  (Contract  No.  HHSN272201100031C)  for
development of broad-spectrum antitoxins for the treatment of human botulism poisoning. The contract work was being performed on a
cost plus fixed fee basis over a three-year period. The Company recognized revenue under the arrangement as the services were performed
on a proportional performance basis. Consistent with the Company’s other contracts with the U.S. government, invoices were provisional
until finalized. The Company operated under provisional rates from 2010 through 2015, subject to adjustment based on actual rates upon
agreement with the government. In 2014, upon completion of NIAID’s review of hours and external expenses, XOMA agreed to exclude
certain hours and external expenses resulting in a $0.4 million receivable and $0.8 million deferred revenue balances. As of December 31,
2017, the Company wrote off the $0.4 million receivable from NIAID as the likelihood of collection was remote. In October of 2019, NIH,
which includes NIAID, notified the Company that it engaged KPMG to perform an audit of the Company’s incurred cost submissions for
2013, 2014 and 2015. The KPMG testing procedures were completed in December 2020. As a result, the Company recognized $1.4 million
as estimated refund liabilities owed to NIH on the consolidated balance sheet as of December 31, 2020. The additional $0.6 million liability
was recognized as a reduction of revenue from contracts with customers in the consolidated statement of operations and comprehensive
income for the year ended December 31, 2020. In December 2021, NIH completed its review of the audit as part of the related contract
close-out process, which included the finalization of rates for years 2010 through 2015, and approved a finalized refund liability of $1.3
million. The $0.1  million  reduction  in  the  liability,  from  its  previously  recorded  $1.4  million  estimate,  was  recognized  as  revenue  from
contracts with customers in the consolidated statement of operations and comprehensive income for the year ended December 31, 2021. In
December 2021, the Company paid the finalized refund liability owed to NIH of $1.3 million and no  balance  of  the  contingent  liability
remained on the consolidated balance sheets as of December 31, 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

F-19

Table of Contents

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  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  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  $1.6  million  and  $1.4  million  as  revenue  under  units-of-revenue  method  under  these  arrangements
during the years ended December 31, 2021 and December 31, 2020, respectively. As of December 31, 2020, the current and non-current
portion of the remaining unearned revenue recognized under units-of-revenue method was $1.5 million and $13.5 million, 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 units-of-revenue method, respectively.

5. Royalty and Commercial Payment Purchase Agreements

Royalty Purchase Agreement with Agenus

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.

F-20

Table of Contents

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 investment 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, 2021.

Royalty Purchase Agreement with Bioasis

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”).

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 (expense) income, net line item of the consolidated statement of operations
and comprehensive income. As of December 31, 2021, 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,  2021.  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 investment 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, 2021.

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 investment 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, 2021.

Royalty Purchase Agreement with Aronora

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

F-21

Table of Contents

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 (Note 8).
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.

Under  the  cost  recovery  method,  the  Company  does  not  expect  to  recognize  any  income  related  to  milestones  and  royalties
received until the investment 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, 2021. 

Royalty Purchase Agreement with Palobiofarma

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 investment 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, 2021.

Royalty Purchase Agreement with Viracta

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

F-22

Table of Contents

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 investment 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, 2021.

Royalty Purchase Agreement with Kuros

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.  No  payments  are  probable  to  be  received  under  the  Kuros  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 investment 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, 2021.

Commercial Payment Purchase Agreement with Affitech

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 (Note 15). 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 meet 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.

Under  the  cost  recovery  method,  the  Company  does  not  expect  to  recognize  any  income  related  to  future  commercial  payment
receipts until the investment 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, 2021.

F-23

Table of Contents

The  following  table  summarizes  the  long-term  royalty  receivable  activities  including  acquisitions  of  royalty  rights,  commercial
payment  rights  and  cash  receipts  for  achievement  of  contractual  milestones  during  the  years  ended  December  31,  2021  and  2020  (in
thousands):

Balance at January 1, 2020

Acquisition of royalty rights:

Bioasis

Cash receipts for achievement of contractual milestones:

Agenus

Balance at December 31, 2020

Acquisition of royalty and commercial payment rights:

Viracta
Kuros
Affitech

Balance at December 31, 2021

6. Fair Value Measurements

     $

34,375

1,200

(1,000)
34,575

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

$

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.

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:

Equity securities

Liabilities:

Contingent consideration under RPAs and CPPAs

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

$

$

F-24

    
 
 
    
    
    
    
Table of Contents

Assets:

Equity securities

Liabilities:

Contingent consideration

Fair Value Measurements at December 31, 2020 Using

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

Significant Other
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

$

$

— $

— $

— $

1,693

— $

75

Total

$

$

1,693

75

Transfers to and from Levels 1, 2, and 3 are recognized at the end of the reporting period. On June 30, 2021, the Company’s equity
investment  in  Rezolute’s  common  stock  transferred  from  Level  3  to  Level  1.  In  reporting  periods  prior  to  June  30,  2021,  the  Company
applied an illiquidity discount to the fair value of Rezolute’s common stock due to the lack of trading volume, resulting in classification as
Level 3. Since June 30, 2021, there has been sufficient and consistent trading volume on the Nasdaq Stock Market to provide an estimate of
fair value utilizing quoted prices in an active market for the identical securities as of the reporting date, resulting in classification as Level
1. There were no transfers between levels during 2020.

Equity Securities

The following table reconciles the beginning and ending balance for the Level 3 financial assets recurring fair value measurement

for the year ended December 31, 2021 (in thousands):

Year Ended

Balance at December 31, 2019
Change in fair value
Balance at December 31, 2020
Change in fair value
Transfer out of Level 3 as of June 30, 2021
Balance at December 31, 2021

$

December 31, 2021
681
$
1,012
1,693
617
(2,310)
—

$

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, 2021, and long-term assets as of December 31, 2020. The reclassification from noncurrent to current
assets was due to the equity securities achieving sufficient and consistent trading volume on the Nasdaq Stock Market during the second
quarter of 2021. The equity securities are revalued each reporting period with changes in fair value recorded in the other (expense) income,
net line item of the consolidated statements of operations and comprehensive income.

As  of  December  31,  2020,  the  Company  and  its  valuation  specialist,  valued  the  equity  securities  using  the  closing  price  for
Rezolute’s  common  stock  traded  on  the  Nasdaq  Stock  Market  and  adjusted  for  an  illiquidity  discount.  The  inputs  that  were  used  to
calculate the illiquidity discount were based on observable and unobservable estimates and judgments and therefore were classified as a
Level 3 fair value measurement. As the Company has the right and option to sell up to 100,000 shares of Rezolute’s common stock back to
Rezolute after December 31, 2019 (Note 4), the fair value of the equity securities was determined by dividing the total shares of Rezolute’s
common stock held by the Company into two tranches based on the estimated time to a potential liquidity event.

As of December 31, 2021, the Company valued the equity securities using the closing price for Rezolute’s common stock traded
on the Nasdaq Stock Market. 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.

F-25

    
    
    
    
  
  
  
  
 
Table of Contents

The closing price of Rezolute’s common stock as per the Nasdaq Stock Market was $4.78 and $11.99 as of December 31, 2021
and December 31, 2020, respectively. The estimated fair value of the equity securities as of December 31, 2020 was calculated based on the
following assumptions:

Closing common stock price

Tranche 1:
Discount for lack of marketability
Estimated time to liquidity of shares

Tranche 2:
Discount for lack of marketability
Estimated time to liquidity of shares

December 31, 
2021

December 31, 
2020

$

4.78

$

11.99

N/A(1) %  

12 %

0.25 year

N/A(1) %

14 %

0.67 years

(1) Due to sufficient and consistent trading volume, the equity investment will be measured at the closing price per the Nasdaq Stock

Market. The assumptions related to the unobservable inputs identified above, and any changes in those assumptions thereto, will no
longer be considered in determining the fair value of the equity securities.

Changes  in  any  of  the  assumptions  related  to  the  unobservable  inputs  identified  above  may  change  the  fair  value  of  the  equity

securities.

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  represents  the  future
consideration  that  is  contingent  upon  the  achievement  of  specified  regulatory  milestones.  The  fair  value  measurement  is  based  on
significant Level 3 inputs such as anticipated timelines and probability of achieving regulatory milestones.

Changes in the fair value of the liability for contingent consideration will be recorded in the other (expense) income, net line item
of the consolidated statements of operations and comprehensive income until settlement. As of December 31, 2021, there were no changes
in the estimated fair value of the contingent consideration recorded pursuant to the Bioasis RPA and Affitech CPPA from the initial values
of $0.1 million and $8.0 million, respectively.

7. Lease Agreement

The Company leases one facility in Emeryville, California under an operating lease that expires in February 2023. The Emeryville

lease contains an option to extend the lease for an additional term, however, the Company is not reasonably certain to exercise this option.

F-26

 
 
 
Table of Contents

The following table summarizes maturity of the Company’s operating lease liabilities as of December 31, 2021 (in thousands):

Undiscounted lease payments
2022
2023
2024

Total undiscounted lease payments

Present value adjustment

Total net lease liabilities

Operating

Leases

202
34
—
236
(7)
229

$

The following table summarizes the cost components of the Company’s operating lease for the years ended December 31, 2021

and 2020, respectively (in thousands):

Lease costs:
Operating lease cost
Variable lease cost (1)
Total lease costs

Year Ended December 31, 

2021

2020

$

$

177   $
8  

185

$

177
7
184

(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, 

2021

2020

$

196 $

189

The present value assumptions used in calculating the present value of the lease payments for the Company’s operating lease as of

December 31, 2021 and December 31, 2020 were as follows:

Weighted-average remaining lease term
Weighted-average discount rate

8. Long-Term Debt and Other Financings

SVB Loan

December 31, 
2021
1.17 years

December 31, 
2020
2.17 years

5.51 %

5.51 %

On May 7, 2018 (the “Effective Date”), the Company executed the SVB Loan Agreement with SVB. Under the Loan Agreement,
upon  the  Company’s  request,  SVB  made  advances  (each,  a  “Term  Loan  Advance”)  available  to  the  Company  up  to  $20.0  million  (the
“Term Loan”). The Company was allowed to borrow advances under the Term Loan from the Effective Date until the earlier of March 31,
2019 or an event of default (the “Draw Period”). The interest rate was calculated at a rate equal to the greater of (i) 4.75%, or (ii) 0.25%
plus the prime rate as reported from time to time in The Wall Street Journal.

F-27

    
 
 
 
 
 
 
    
    
    
    
    
 
 
    
    
Table of Contents

Payments under the Loan Agreement were interest only until the first anniversary of the funding date of each Term Loan Advance.
The interest-only period was followed by equal monthly payments of principal and interest over 24 months. Each Term Loan Advance was
scheduled  to  mature  at  the  earlier  of  (i)  the  23 months  following  the  applicable  term  loan  amortization  date  for  each  such  Term  Loan
Advance (ii) March 1, 2023, or (iii) 30 days prior to the earliest maturity of any portion of the Company’s loan with Novartis (the “Loan
Maturity  Date”).  After  repayment,  no  Term  Loan  Advance  (or  any  portion  thereof)  may  be  reborrowed.  The  entire  principal  balance,
including a final payment fee equal to 8.5% of the original principal, was due and payable on the Loan Maturity Date.

In June 2021, the Company repaid its principal balance of $6.5 million and paid the 8.5%  final  payment  fee  of  $1.4  million  to

SVB. The Company also paid SVB a prepayment fee of 1% of the outstanding principal balance.

In connection with the Loan Agreement, the Company issued a warrant to SVB 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”). 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. In addition, the Company incurred debt issuance costs of $0.2 million in connection with the Loan Agreement.

On March 4, 2019, the 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 fair value of the second warrant issued to SVB
was determined using the Black-Scholes Model and was estimated to be $0.1 million.

Both  warrants  may  be  exercised  on  a  cashless  basis  and  are  exercisable  within  10 years  from  the  date  of  issuance  or  upon  the

consummation of certain acquisitions of the Company. As of December 31, 2021, both warrants are outstanding.

In September 2018, the Company borrowed advances of $7.5 million under the Loan Agreement in connection with the Agenus
RPA (Note 5). The Company recorded a discount of $0.3 million against the debt, which was being amortized to interest expense over the
term of the Term Loan Advance using the effective interest method.

During the year ended December 31, 2019, the Company borrowed advances totaling $9.5 million under the Loan Agreement in
connection with the Aronora RPA, Palo RPA and payment of the Aronora Contingent Consideration (Note 5). The Company recorded a
discount of $45,000 against the debt, which was being amortized to interest expense over the term of the Term Loan Advance using the
effective interest method.

The Company recorded $0.2 million of non-cash interest expense resulting from the amortization of the discount and accretion of

the final payment before the loan was extinguished in June 2021 and $0.6 million for the year ended December 31, 2020.  

As  of  December  31,  2020,  the  carrying  value  of  the  debt  under  the  Loan  Agreement  was  $11.8  million.  Of  this  amount,  $8.1
million was classified as current portion of long-term debt and $3.7 million was classified as long-term debt on the consolidated balance
sheet. In June 2021, the Company paid off its entire outstanding principal balance to SVB. Upon repayment of the principal balance, the
Company recognized a loss on extinguishment of $0.3 million in other (expense) income, net of the consolidated statement of operations
for the year ended December 31, 2021. As of December 31, 2021, there was no carrying value of the debt under the Loan Agreement.

Novartis Note

In May 2005, the Company executed the Novartis Note Agreement with Novartis, which was due and payable in full in June 2015.
Under the Novartis Note Agreement, the Company borrowed semi-annually to fund up to 75% of the Company’s research and development
and commercialization costs under its collaboration arrangement with Novartis, not to exceed $50.0 million in aggregate principal amount.
Interest on the principal amount of the loan accrued at six-month LIBOR plus 2% and the interest rate reset in June and December annually.
Accrued interest was payable semi-annually in

F-28

Table of Contents

June  and  December  of  each  year  or,  at  the  Company’s  election,  the  semi-annual  interest  payments  could  be  added  to  the  outstanding
principal amount, in lieu of a cash payment, as long as the aggregate principal amount did not exceed $50.0 million. The Company made
this  election  for  all  interest  payments.  Loans  under  the  Novartis  Note  Agreement  were  secured  by  the  Company’s  interest  in  its
collaboration  with  Novartis,  including  any  payments  owed  to  it  thereunder.  In  June  2021,  the  Company  repaid  its  outstanding  principal
balance to Novartis of $9.1 million and extinguished its debt obligation.

On September 30, 2015, concurrent with the execution of a license agreement with Novartis as discussed in Note 4, XOMA and
Novartis,  who  assumed  the  rights  to  the  note  from  Novartis  Vaccines  Diagnostics,  Inc.  executed  an  amendment  to  the  Novartis  Note
Agreement (the “Secured Novartis Note Amendment”) under which the parties extended the maturity date of the note from September 30,
2015 to September 30, 2020, and eliminated the mandatory prepayment previously required to be made with certain proceeds of pre-tax
profits and royalties. In addition, upon achievement of a specified development and regulatory milestone, the then-outstanding principal
amount of the note was to be reduced by $7.3 million rather than the Company receiving such amount as a cash payment.

On  September  22,  2017,  in  connection  with  the  Gevokizumab  License  Agreement  with  Novartis,  the  Company  and  Novartis
executed  an  amendment  to  the  Novartis  Secured  Note  Amendment  under  which  the  parties  further  extended  the  maturity  date  of  the
Novartis Secured Note Amendment from September 30, 2020 to September 30, 2022.

On October 21, 2020, the first patient was dosed in Novartis’s first NIS793 Phase 2 clinical trial and the Company earned a $25.0
million milestone pursuant to the Anti-TGFβ Antibody License Agreement, of which $17.7 million was received in cash and $7.3 million
was recognized as a reduction to the debt obligation to Novartis.

As of December 31, 2020, the outstanding principal balance under the Novartis Secured Note Amendment was $9.1 million and
was included in long-term debt in the accompanying consolidated balance sheet. In June 2021, the Company repaid its entire outstanding
debt balance to Novartis. The repayment of principal did not result in any gain or loss on extinguishment. As of December 31, 2021, there
was no carrying value of the debt under the Novartis Note Agreement.

Interest Expense

Amortization of debt issuance costs and discounts are included in interest expense. Interest expense in the consolidated statements
of operations and comprehensive income for the years ended December 31, 2021 and 2020, relates to the following debt instruments (in
thousands):

SVB Loan
Novartis Note
Other
Total interest expense

9. Income Taxes

Year Ended December 31, 

2021

2020

$

$

$

373
88
—  
$
461

1,365
477
2
1,844

The  Company  has  pre-tax  book  income  of  $15.9  million  and  $11.8  million  for  the  year  ended  December  31,  2021  and  2020,
respectively.  The Company has $0.1 million income tax expense and $1.5 million income tax benefit for the years ended December 31,
2021 and 2020, respectively.  

F-29

    
    
 
 
 
Table of Contents

The provision (benefit) for income taxes, all classified as current, consists of the following (in thousands):

Federal
State

Total

Year Ended December 31, 

2021

$
91
—  
$
91

2020
(1,501)
—
(1,501)

$

$

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 CARES Act
Tax benefit related to net operating loss carryforward utilization
Valuation allowance

Total

Year Ended December 31, 
2020

2021

21 %  
9 %  
(2)%  
— %  
(11)%  
(16)%  
1 %  

21 %
(6)%
— %
(13)%
— %
(15)%
(13)%

On  March  27,  2020,  the  CARES  Act  was  enacted,  which  includes  a  five-year  NOL  carryback  provision  which  enabled  the
Company to benefit from certain losses at the former federal tax rate of 34%. In 2020, the Company recorded tax benefits of $1.5 million
related  to  the  NOL  carryback  provision.  During  the  year  ended  December  31,  2021,  the  Company  received  $1.5  million  in  cash  for  its
income tax receivable.

The significant components of net deferred tax assets at December 31, 2021 and 2020 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, 

$

$

2021

7,822
17,657
13,125
4,778
2,817
807
47,006
(47,006)

$

— $

2020
11,500
17,638
13,454
5,158
3,462
401
51,613
(51,613)
—

The net decrease in the valuation allowance was $4.6 million and $3.9 million, for the years ended December 31, 2021 and 2020,

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, 2021
and December 31, 2020. To the extent that the Company

F-30

    
    
 
 
    
    
 
 
 
 
 
 
 
 
    
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

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, 2021, the Company had federal NOL carry-forwards of approximately $78.8 million and state NOL carry-
forwards of approximately $38.1 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 federal income tax law, 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 beginning after December 31,
2020, the deductibility of such federal NOLs may only be utilized to offset 80% of taxable income annually.  

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 2018 and beyond remain subject to examination by the Internal Revenue Service. The Company’s state income tax
returns for tax years 2017 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, 

2021

2020

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

5,517
—
421
5,938

As of December 31, 2021, 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, 2021, the Company has not accrued interest or penalties related to uncertain tax positions.

10. Stock Based Compensation

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,

F-31

    
    
 
 
Table of Contents

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 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, 2021, the Company had 237,072
remaining authorized shares available for purchase under the ESPP.

During  the  years  ended  December  31,  2021  and  2020,  employees  purchased  2,225  and  2,746  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 2021 and 2020 of $19,500 (or $26,000 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, 2021 and December 31, 2020, 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. As of December 31, 2021, the number of shares of common stock reserved for
issuance under the 2010 Plan is 3,029,062 shares.

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 to six months
from the date of termination of employment (longer in case of death or certain retirements).

As of December 31, 2021, the Company had 161,140 shares available for grant under the 2010 Plan. As of December 31, 2021,

options to purchase 1,911,177 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.

F-32

Table of Contents

Stock Option Plans Summary

The following table summarizes the Company’s stock option activity for the year ended December 31, 2021.

Outstanding at January 1, 2021
Granted
Exercised
Forfeited, expired or cancelled
Outstanding at December 31, 2021
Exercisable at December 31, 2021

As of December 31, 2021

Weighted
Average
Exercise
Price
Per Share

Weighted
Average
Contractual 
Term
(in years)

Aggregate
Intrinsic
Value
(in thousands)

20.66  
32.02  
13.61  
46.59  
20.64  
18.75  

6.31   $

51,401

6.33
5.69

$
$

15,103
14,894

Number of
shares
1,827,906
325,211
(77,305)
(164,635)
1,911,177
1,553,696

$

$
$

The aggregate intrinsic value of stock options exercised in 2021 and 2020 was $1.6 million and $5.4 million, respectively.

The  weighted-average  grant-date  fair  value  per  share  of  the  options  granted  in  2021  and  2020  was  $22.23  and  $18.41,

respectively.

As  of  December  31,  2021,  $4.1  million  of  total  unrecognized  compensation  expense  related  to  stock  options  is  expected  to  be

recognized over a weighted average period of 2.21 years.

Stock-based Compensation Expense

The  fair  value  of  stock  options  granted  during  the  years  ended  December  31,  2021  and  2020,  was  estimated  based  on  the

following weighted average assumptions for:

Dividend yield
Expected volatility
Risk-free interest rate
Expected term

Year Ended December 31, 

2021

2020

0 %  
83 %  
0.95 %  

0 %
100 %
0.72 %

5.66 years

5.64 years

The following table shows total stock-based compensation expense for stock options and ESPP in the consolidated statements of

operations and comprehensive income (in thousands):

Research and development
General and administrative
Total stock-based compensation expense

11. Net Income Per Share Attributable to Common Stockholders

Year Ended December 31, 

2021

2020

$

$

— $

6,195
6,195

$

—
3,961
3,961

Potentially  dilutive  securities  are  excluded  from  the  calculation  of  diluted  net  income  per  share  attributable  to  common

stockholders if their inclusion is anti-dilutive.

F-33

    
 
 
   
  
 
 
   
  
 
   
  
 
    
    
 
 
 
 
 
    
    
 
 
Table of Contents

The following table shows the weighted-average outstanding securities considered anti-dilutive and therefore excluded from the

computation of diluted net income per share attributable to common stockholders (in thousands):

Convertible preferred stock
Common stock options
Warrants for common stock
Total

Year Ended December 31, 

2021

2020

—
479
—
479  

—
616
6
622

The  following  is  a  reconciliation  of  the  numerator  (net  income)  and  denominator  (number  of  shares)  used  in  the  calculation  of

basic and diluted net income per share attributable to common stockholders (in thousands):

Numerator
Net income

Less: Series A accumulated dividends
Less: Series B accumulated dividends
Less: Allocation of undistributed earnings to participating securities

Net income available to common stockholders, basic

Add: Adjustments to undistributed earnings allocated to participating securities

Net income available to common stockholders, diluted

Denominator
Weighted average shares used in computing basic net income per share available
to common stockholders
Effect of dilutive stock options
Effect of dilutive warrants
Weighted average shares used in computing diluted net income per share
available to common stockholders
Basic net income per share available to common stockholders
Diluted net income per share of common stock

Year Ended December 31, 

2021

2020

$

$

$

$
$

15,798
(2,122)
(2,438)
(3,451)
7,787
181
7,968

11,288
900
4

12,192
0.69
0.65

$

$

$

$
$

13,298
(88)
—
(4,417)
8,793
217
9,010

10,674
824
5

11,503
0.82
0.78

12. 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, 2021 and 2020, 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.

F-34

    
    
 
 
 
    
    
 
   
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

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.

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.

Beneficial  Conversion  Feature—  The  fair  value  of  the  common  stock  into  which  the  Series  X  convertible  preferred  stock  is
convertible exceeded the allocated purchase price of the Series X convertible preferred stock by $5.6 million on the date of issuance, as
such the Company recorded a deemed dividend. The Company recognized the resulting beneficial conversion feature as a deemed dividend
equal to the number of shares of Series X convertible preferred stock sold on February 16, 2017 multiplied by the difference between the
fair value of the common stock and the Series X convertible preferred stock effective conversion price per share on that date. The dividend
was  reflected  as  a  one-time,  non-cash,  deemed  dividend  to  the  holders  of  Series  X  convertible  preferred  stock  on  the  date  of  issuance,
which is the date the stock first became convertible. There was no beneficial conversion feature associated with the issuance of Series Y
convertible preferred stock.

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.

Mr. Matthew Perry, a member of the Company’s Board of Directors and President of BVF, purchased 200,000 shares of Series A
Preferred Stock in the public offering at the public offering price of $25.00 per share for an aggregate amount of $5.0 million. The spouse
of James Neal, the Company’s Chief Executive Officer and Chairman of the Board of Directors, purchased 8,000  shares  of  the  Series  A
Preferred Stock 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, 2021 and 2020, 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

F-35

Table of Contents

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  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. 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, the Chief Executive Officer 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, 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

F-36

Table of Contents

$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 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 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.

F-37

Table of Contents

Dividends

During the year ended December 31, 2021, 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

March 17, 2021
May 21, 2021
July 28, 2021
October 20, 2021

$
$
$
$

Series A Preferred Stock
Cash Dividend Declared
($ per share)

Series B Depositary Share
Cash Dividend Declared
($ per share)

     Dividend Payment Date

0.71875     $
$
0.53906
$
0.53906
$
0.53906

N/A (1) April 15, 2021
July 15, 2021
0.55833
0.52344 October 15, 2021
January 18, 2022
0.52344

(1) The Company sold 1,600,000 Series B Depositary Shares on April 9, 2021. As such, the first dividend was declared on May 21,

2021.

As of December 31, 2021, the Company held restricted cash of $2.0 million in a segregated account that may only be used to pay

dividends on the Series A and Series B Preferred Stock.

BVF Ownership

In  February  2020,  BVF  elected  to  increase  the  beneficial  ownership  limitation  of  the  Series  Y  preferred  stock  to  50%,  which
became effective on April 11, 2020. On April 15, 2020, BVF converted all of its shares of Series Y preferred stock into common stock. As
of December 31, 2021, BVF owned approximately 31.2% 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,  2021,  the
contingency  was  not  met,  therefore  the  Series  A  Preferred  Stock  is  not  included  in  the  as-converted  ownership  calculation.  Due  to  its
significant equity ownership, BVF is considered a related party of the Company.

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.

F-38

    
    
Table of Contents

Common Stock Warrants

As of December 31, 2021 and 2020, the following common stock warrants were outstanding:

Issuance Date
February 2016
May 2018
March 2019

Expiration Date

Balance Sheet Classification

Exercise Price
per Share

     December 31, 

     December 31,

2021

2020

  February 2021
  May 2028

March 2029

  Stockholders’ equity
  Stockholders’ equity
Stockholders’ equity

$
$
$

15.40  
23.69  
14.71

—  
6,332  
4,845
11,177  

8,249
6,332
4,845
19,426

In February 2016, in conjunction with services provided by a third-party consultant, the Company issued a warrant to purchase up
to an aggregate of 8,249 unregistered shares of the Company’s common stock at an exercise price equal to $15.40 per share. The warrant
was exercisable immediately and had a five-year term expiring in February 2021. As of December 31, 2020, the estimated fair value of the
warrant  of  $0.1  million  was  calculated  using  the  Black-Scholes  Model  and  was  classified  in  stockholders’  equity  on  the  consolidated
balance  sheet.  In  February  2021,  the  Company  issued  4,917  shares  of  common  stock  upon  a  cashless  exercise  of  the  common  stock
warrants held by Torreya Partners LLC. There is no balance of these warrants on the consolidated balance sheet as of December 31, 2021.

In May 2018, the Company issued SVB a warrant in connection with the SVB Loan Agreement (Note 8) 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  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, 2021, both warrants are outstanding and no shares have been issued upon exercise of the warrants.

13. 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.

Contingent Consideration

Pursuant to the Company’s royalty and commercial payment purchase agreements with Bioasis, Aronora, Kuros and Affitech, the
Company has committed to pay the Bioasis Contingent Consideration, the Aronora Royalty Milestones, the Kuros Sales Milestones and the
Affitech regulatory and sales milestones. The Company recorded $0.1 million and $8.0 million for the Bioasis Contingent Consideration
and the Affitech Regulatory Milestones, respectively, which, represents the estimated fair value of these potential future payments at the
inception of the respective agreements. The contingent

F-39

    
    
    
 
   
  
 
   
Table of Contents

consideration is remeasured at fair value at each reporting period, with changes in fair value recorded in other (expense) income, net. As of
December  31,  2021,  there  were  no  changes  in  the  estimated  fair  value  of  the  Bioasis  Contingent  Consideration  and  the  Affitech  Sales
Milestones  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. As of December 31, 2021, none of these Aronora
Royalty  Milestones,  Kuros  Sales  Milestones  or  Affitech  Sales  Milestones  were  assessed  to  be  probable  and  as  such,  no  liability  was
recorded on the consolidated balance sheet.

14. 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,  2021,  one  partner  represented  92%  of  total  revenues.  For  the  year  ended  December  31,  2020,  one  partner
represented 85% of total revenues. As of December 31, 2021 and 2020, 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:

Europe
United States
Asia Pacific
Total

The Company’s property and equipment is held in the United States.

15. Subsequent Events

Year Ended December 31, 

2021
35,000
2,610
550
38,160

$

$

2020
25,010
1,275
3,100
29,385

$

$

On  January  28,  2022,  Genentech,  a  member  of  the  Roche  group,  received  approval  from  the  FDA  to  commercialize  faricimab
(faricimab-svoa) for the treatment of wet, or neovascular, age-related macular degeneration and diabetic macular edema. Upon approval,
the Company became eligible to receive a 0.5% commercial payment stream on net sales associated with faricimab for a ten-year period
following its first commercial sale in the United States.  The Company acquired this interest under the Affitech CPPA, pursuant to which,
the Company paid Affitech a $5.0 million milestone tied to these U.S. marketing approvals. The Company may pay up to an additional
$15.0 million to Affitech based on the achievement of certain regulatory approval and sales milestones.

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 the Company’s Rezolute License Agreement.

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,  2021,  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.

AMENDED AND RESTATED EMPLOYMENT AGREEMENT  

This Amended and Restated Employment Agreement (“Agreement”) between James R. Neal (“Employee”) and
XOMA Corporation (“XOMA” or the “Company”) (collectively, the “Parties”) is effective as of December 15,
2021 (the “Agreement Effective Date”).

Exhibit 10.26

Preamble:

● XOMA wishes to enter into this Agreement to assure the continued services of Employee for a period

until a new CEO is hired or until December 31, 2022, whichever occurs first; and

● Employee is willing to enter into this Agreement and to serve in the employ of XOMA upon the terms

and conditions hereinafter provided;

● NOW,  THEREFORE,  in  consideration  of  the  mutual  covenants  herein  contained,  the  Parties  agree  as

follows: 

1. Employment.    Employee  is  currently  employed  with  XOMA  in  the  position  of  Chief  Executive
Officer (“CEO”).  Employee will continue to serve in this role until the Company hires a new CEO.  Upon the
hiring of a new CEO, the Board of Directors (the “Board”) will determine Employee’s employment termination
date  (the  “Separation  Date”),  at  which  time  Employee’s  employment  with  the  Company  will  cease.    If  the
Company has not hired a new CEO as of January 1, 2023, then such date will become Employee’s Separation
Date,  unless  the  Parties  mutually  agree  in  writing  to  a  different  Separation  Date.    Employee’s  terms  of
employment between the Agreement Effective Date and the Separation Date (the “Transition Period”) will be
governed  by  the  terms  of  this  Agreement,  which  shall  supersede  and  replace,  in  entirety,  the  Officer
Employment Agreement between Employee and the Company dated August 7, 2017.

2. Position and Responsibilities.   Employee shall devote reasonable best efforts and substantially all of
Employee’s  time  and  attention  to  employment  with  XOMA.    Employee  shall  perform  those  duties  and
responsibilities  as  may  be  directed  by  the  Board,  to  whom  Employee  will  report.    Such  duties  shall  include
(without  limitation)  delivering  2022  operating  results,  serving  as  the  external  face  of  XOMA,  retaining  and
recruiting talent, and leading the search for a new CEO (to be approved and appointed by the Board).  Effective
as of the Agreement Effective Date, Employee will also be appointed to serve as the Chair of the Board, with
such appointment to terminate in the discretion of 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.  The Company acknowledges that the Board has previously approved the following appointments by Employee:
 Chairman of the Board of Palisade Bio, Inc. and Chairman of the Board of Monterey Bio.  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

260523219 v5

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 Transition
Period.    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 and 8.  

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  $725,000  per  year,  less  applicable  payroll  deductions  and  withholdings  (the  “Base
Salary”), paid on XOMA’s ordinary payroll cycle.  In addition, starting on January 1, 2022, Employee
will  receive  a  bonus  equal  to  60%  of  Base  Salary,  which  will  be  paid  in  equal  installments  on  the
Company’s ordinary payroll cycle.      

(b)

Equity Awards.  Employee has already been granted Stock Awards, which will continue to
be governed by the terms of the applicable stock option and equity incentive award plans or agreements
and  grant  notices.    For  purposes  of  this  Agreement,  “Stock  Awards”  shall  mean  all  stock  options,
restricted  stock  and  restricted  stock  units  and  such  other  awards  granted  pursuant  to  XOMA’s  stock
option  and  equity  incentive  award  plans  or  agreements  and  any  shares  of  stock  issued  upon  exercise
thereof.  In addition, following the Agreement Effective Date, in accordance with the Company’s option
grant  policy,  the  Company  will  grant  Employee  a  stock  option  to  purchase  60,000  shares  of  the
Company’s common stock, subject to the terms of the Company’s equity incentive plan and a vesting
schedule to be set forth in the applicable option award documentation.

(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.  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.

6. Compliance with Proprietary Information Agreement and XOMA Policies.  Employee is required to
remain  in  compliance  with  the  terms  of  the  Employee  Confidential  Information  and  Inventions  Assignment
Agreement that Employee has previously executed (the “Confidentiality Agreement”).  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.

260523219 v5

-2-

 
(a)

Termination by Employee.  As provided in Section 3, Employee may resign Employee’s
employment with XOMA at any time, including for “Good Reason.” For purposes of this Agreement,
Employee shall have “Good Reason”  for  resignation  from  employment  with  XOMA  in  the  event  of  a
material breach of this Agreement by the Company.  In order to resign for Good Reason, Employee must
provide the Company with notice of the material breach giving rise to Good Reason within thirty (30)
days after its occurrence; the Company will then have thirty (30) days to cure; and then Employee must
resign within thirty (30) days after the end of the cure period if the material breach has not been cured.
  Employee  will  not  be  entitled  to  the  Continuity  Incentive  set  forth  in  Section  8  if  Employee  resigns
without Good Reason prior to the Company hiring a new CEO, or December 31, 2022, whichever comes
first.  If Employee resigns with Good Reason prior to the Company hiring a new CEO, or December 31,
2022,  whichever  comes  first,  then  Employee  will  be  entitled  to  the  Continuity  Incentive  set  forth  in
Section 8 below, subject to the terms and conditions therein.  

(b)

Termination by XOMA Without Cause.  Employee may be terminated by XOMA without
Cause,  but  in  such  case,  Employee  shall  be  entitled  to  the  Continuity  Incentive  set  forth  in  Section  8
below,  subject  to  the  terms  and  conditions  therein.   The  termination  of  Employee’s  employment  upon
the hiring of a new CEO will be deemed a termination without Cause.

(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.    The
Company may terminate Employee’s employment due to death or Permanent Disability, in which case
Employee shall be entitled to the Continuity Incentive benefits set forth in Section 8, subject to the terms
and conditions therein.

(d)

Termination  by  XOMA  for  Cause.    XOMA  may  terminate  Employee’s  employment  for
Cause, in which case, Employee will not be entitled to the Continuity Incentive benefits under Section 8.
 For purposes of this Agreement, XOMA will have Cause to terminate Employee’s employment as the
result of:  

(i)

willful  material  fraud  or  material  dishonesty  in  connection  with  Employee’s

performance under this Agreement;

(ii)

(iii)

(iv)

failure by Employee to materially perform the duties of CEO;  

material breach of this Agreement or of XOMA’s Code of Ethics;  

misappropriation of a material business opportunity of XOMA;

260523219 v5

-3-

(v)

(vi)

a felony.

misappropriation of any XOMA funds or property; or

conviction of, or the entering of a plea of guilty or no contest with respect to,

(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 Sections 7(d)(ii) or (iii) 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)

Return  of  XOMA  Property.    Upon  termination  of  employment  for  any  reason,  and  as  a
precondition to Employee’s receipt of the Continuity Incentive benefits set forth in Section 8, Employee
shall  immediately  return  to  XOMA  all  documents,  telephones,  computers,  keys,  credit  cards,  other
property and records of XOMA, and all copies, within Employee’s possession, custody or control. 

(g)

Release of Claims.  As a condition of receiving the Continuity Incentive benefits set forth
in  Section  8,  Employee  shall  execute  and  deliver  to  XOMA  a  release  of  claims  in  favor  of  XOMA
substantially in the form attached hereto as Exhibit A (the “Release Agreement”) within the timeframe
set  forth  in  the  Release  Agreement,  but  not  later  than  forty-five  (45)  days  following  Employee’s
Separation 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. Continuity Incentive.  Subject to Sections 7(f) and 7(g) and Employee’s continued compliance with
all  legal  and  contractual  obligations  to  the  Company,  upon  the  termination  of  Employee’s  employment  with
XOMA due to a resignation for Good Reason, or as provided in Section 7(b) (Termination without Cause) or
Section  7(c)  (Termination  due  to  death  or  Permanent  Disability),  Employee  shall  be  entitled  to  a  Continuity
Incentive in the amount of $1,160,000.  In addition, if Employee’s resignation for Good Reason or Termination
without  Cause  is  effective  before  September  30,  2022,  then  the  Continuity  Incentive  shall  be  increased  to
include the amount of salary and bonus that Employee would have received had he remained employed through
September 30, 2022.  This Continuity Incentive will be paid in equal monthly installments over a twelve (12)
month  period,  starting  in  January  2023,  less  deductions  and  withholdings;  provided  that,  if  the  Release
Agreement  does  not  become  fully  effective  prior  to  January  31,  2023,  then  the  first  Continuity  Incentive
payment will occur on the date the Release Agreement becomes fully effective, and the remaining Continuity
Incentive payments will be made on last day of each calendar month in 2023.  

9. Change in Control Benefits.  This Transition Agreement shall not affect the terms and conditions of
the  Parties’  Amended  and  Restated  Change  of  Control  Severance  Agreement,  effective  as  of  August  7,  2017
(the “CoC Agreement”),  which  agreement  shall  remain  in  full  force  and  effect.    In  the  event  such  severance
provisions  are  triggered,  then  the  provisions  of  the  CoC  Agreement  providing  for  severance  benefits  to
Employee as a result of such termination shall apply in lieu of the provisions of this Agreement, provided that if
the economic benefits to the Employee

260523219 v5

-4-

under the CoC are less than those provided in this Agreement, then the economic terms herein shall apply.  

10. Binding Agreement. This Agreement shall be binding upon, and inure to the benefit of, the Parties

and their respective permitted successors and assigns.  

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) 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(b)  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)).

(c) 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

260523219 v5

-5-

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.

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.

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.  

260523219 v5

-6-

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.

20. Complete  Agreement.  This  Agreement,  together  with  Employee’s  Confidentiality  Agreement  and
the CoC Agreement, 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.   

COMPANY:

XOMA CORPORATION

By: /s/ W. Denman Van Ness

W. Denman Van Ness
Chairman of the Board

/s/ James R. Neal
James R. Neal

-7-

EMPLOYEE:

260523219 v5

  
     
  
 
EXHIBIT A

FORM RELEASE OF CLAIMS AGREEMENT

This Release of Claims Agreement (“Release Agreement”) is entered into between XOMA Corporation
(“XOMA”) and James R. Neal (“Employee”).  XOMA and Employee (collectively, the “Parties”) are parties to
an Amended and Restated Employment Agreement (“Transition 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  Transition  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;

260523219 v5

(f) all claims for violation of the federal or any state constitution;

(g) all  claims  arising  out  of  any  other  laws  and  regulations  relating  to  employment  or

employment discrimination; and

(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 Transition Agreement
or this Release Agreement.  In addition, nothing in this Release Agreement prevents Employee from filing,
cooperating

260523219 v5

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 Transition 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

260523219 v5

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  Transition  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

By:  /s/ XOMA CORPORATION

EMPLOYEE:

260523219 v5

/s/ James R. Neal
James R. Neal

  
 
  
 
[*] = 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.

EXECUTION COPY

Exhibit 10.48

COMMERCIAL PAYMENT PURCHASE AGREEMENT

dated as of October 6, 2021

between

AFFITECH RESEARCH AS, as Seller,

and

XOMA (US) LLC, as Purchaser

 
 
 
 
 
COMMERCIAL PAYMENT PURCHASE AGREEMENT

This COMMERCIAL PAYMENT PURCHASE AGREEMENT (this “Agreement”), dated as of October 6,
2021 (the “Effective Date”), is between AFFITECH RESEARCH AS (formerly known as AFFITECH AS), a
Norwegian  company  with  the  organization  number  976  567  900,  with  their  office  and  place  of  business  at
Lillogata  SM,  0484  Oslo,  Norway  (“Seller”  or  “Assignor”),  and  XOMA  (US)  LLC,  a  Delaware  limited
liability company with its principal place of business at 2200 Powell Street, Suite 310, Emeryville, California
94608 (“Purchaser” or “Assignee”).

W I T N E S E T H:

WHEREAS,  Seller  and  its  Affiliates  (collectively,  “Affitech”)  on  the  one  hand,  and  F.  Hoffmann-La
Roche  Ltd,  with  an  office  and  place  of  business  at  Grenzacherstrasse  124,  4070  Basel,  Switzerland  (“Roche
Basel”) and Hoffmann-La Roche Inc., with an office and place of business at 150 Clove Road, Suite 8, Little
Falls, New Jersey 07424, U.S.A. (“Roche Little Falls”; Roche Basel and Roche Little Falls together referred to
as “Roche”) on the other hand, were parties to that certain Research and License Agreement effective as of May
4, 2007 (the “Roche License Agreement”), pursuant to which Affitech performed certain research and granted
Roche certain rights and licenses;

WHEREAS, pursuant to that certain Asset Purchase Agreement, effective as of December 14, 2020, by
and between Affitech and Roche (the “Roche APA”), the parties thereto terminated and superseded the Roche
License  Agreement,  and,  among  other  matters,  Affitech  sold  to  Roche  certain  assets  and  granted  to  Roche
certain rights and licenses in exchange for certain payments to be made by Roche to Affitech or its assignee;

WHEREAS, Seller has [*] (as defined in the Roche APA) under the Roche APA and provided written
notice and instructions to Roche as required thereunder and, as a result, is entitled to receive such payments in
the amount of 0.5% of Net Sales of Products, pursuant to and subject to the terms and conditions of the Roche
APA;

WHEREAS, Seller now desires to sell, assign, transfer, convey and grant to Purchaser, free and clear of
all Liens (as defined below), and Purchaser desires to purchase, acquire and accept from Seller, the Purchased
Commercial  Payments  (as  defined  below),  upon  the  terms  and  subject  to  the  conditions  set  forth  in  this
Agreement.

NOW, THEREFORE, in consideration of the premises and the mutual agreements, representations and
warranties set forth herein, and of other good and valuable consideration, the receipt and adequacy of which are
hereby acknowledged, the parties hereto (each a “Party,” and collectively, the “Parties”) covenant and agree as
follows:

ARTICLE I
DEFINED TERMS AND RULES OF CONSTRUCTION

Section 1.1 Defined Terms. The following terms, as used herein, shall have the following respective
meanings.  Capitalized terms used but not defined in this Agreement shall have the meaning given to them or
referenced in the Assignment Agreement.

[*] = 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.

1

“Affiliate” means, with respect to any Person, any other Person that, directly or indirectly through one or more
intermediaries, Controls or is Controlled by or is under common Control with such Person.

“Affitech” has the meaning set forth in the recitals.

“Agreement” has the meaning set forth in the preamble.

“Applicable Law” means, with respect to any Person, all laws, rules, regulations and orders of Governmental
Authorities applicable to such Person or any of its properties or assets.

“Assigned Commercial Payments” has the meaning set forth in the Assignment Agreement.

“Assignment  Agreement”  means  the  Assignment  Agreement  executed  by  Roche,  Seller  and  Purchaser,
substantially in the form attached hereto as Exhibit 1.

“Bankruptcy Event” means the occurrence of any of the following in respect of a Person: (a) an admission in
writing by such Person of its inability to pay its debts generally or a general assignment by such Person for the
benefit  of  creditors;  (b)  the  filing  of  any  petition  or  answer  by  such  Person  seeking  to  adjudicate  itself  as
bankrupt  or  insolvent,  or  seeking  for  itself  any  liquidation,  winding-up,  reorganization,  arrangement,
adjustment, protection, relief or composition of such Person or its debts under any Applicable Law relating to
bankruptcy, insolvency, receivership, winding-up, liquidation, reorganization, examination, relief of debtors or
other similar Applicable Law now or hereafter in effect, or seeking, consenting to or acquiescing in the entry of
an order for relief in any case under any such Applicable Law, or the appointment of or taking possession by a
receiver, trustee, custodian, liquidator, examiner, assignee, sequestrator or other similar official for such Person
or for any substantial part of its property; (c) corporate or other entity action taken by such Person to authorize
any of the actions set forth in clause (a) or clause (b) above; or (d) without the consent or acquiescence of such
Person,  the  entering  of  an  order  for  relief  or  approving  a  petition  for  relief  or  reorganization  or  any  other
petition  seeking  any  reorganization,  arrangement,  composition,  readjustment,  liquidation,  dissolution  or  other
similar relief under any present or future bankruptcy, insolvency or similar Applicable Law, or the filing of any
such  petition  against  such  Person,  or,  without  the  consent  or  acquiescence  of  such  Person,  the  entering  of  an
order appointing a trustee, custodian, receiver or liquidator of such Person or of all or any substantial part of the
property of such Person, in each case where such petition or order shall remain unstayed or shall not have been
stayed  or  dismissed  within  ninety  (90)  days  from  entry  thereof;  provided  that  in  the  case  of  an  involuntary
petition, such Person has not challenged such petition within ninety (90) days thereof.

“Bill  of  Sale”  means  that  certain  bill  of  sale  dated  as  of  the  Closing  Date  executed  by  Seller  and  Purchaser
substantially in the form attached hereto as Exhibit 2.

“Business  Day”  means  any  day  that  is  not  a  Saturday,  Sunday  or  other  day  on  which  commercial  banks  in
California are authorized or required by Applicable Law to remain closed.

“CDA” has the meaning set forth in Section 7.9.

“Closing” has the meaning set forth in Section 2.5.

2

[*] = 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.

“Closing Date” has the meaning set forth in Section 2.5.

“Control”  means  the  possession,  directly  or  indirectly,  of  the  power  to  direct  or  cause  the  direction  of  the
management  or  policies  of  a  Person,  whether  through  the  ability  to  exercise  voting  power,  by  contract  or
otherwise. “Controlling” and “Controlled” have meanings correlative thereto.

“Dollar” or the sign “$” means United States dollars.

“EMA” shall mean the European Medicines Agency and any successor agency thereto.

“Excluded Liabilities and Obligations” has the meaning set forth in Section 2.3.

“FDA” means the U.S. Food and Drug Administration and any successor agency thereto.

“GAAP” means generally accepted accounting principles in effect in the United States from time to time.

“Governmental  Authority”  means  the  government  of  the  United  States,  any  other  nation  or  any  political
subdivision  thereof,  whether  state  or  local,  and  any  agency,  authority  (including  supranational  authority),
commission,  instrumentality,  regulatory  body,  self-regulatory  body,  court,  central  bank  or  other  Person
exercising  executive,  legislative,  judicial,  taxing,  regulatory  or  administrative  powers  or  functions  of  or
pertaining to government, including the FDA, the EMA and any other government authority in any jurisdiction.

“Lien”  means  any  security  interest,  mortgage,  pledge,  hypothecation,  assignment,  deposit  arrangement,
encumbrance, lien (statutory or otherwise), charge against or interest in property or other priority or preferential
arrangement  of  any  kind  or  nature  whatsoever,  in  each  case  to  secure  payment  of  a  debt  or  other  liability  or
performance of an obligation, including any conditional sale or any sale with recourse.

“Net Sales” has the meaning given to it in the Assignment Agreement.

“Party” and “Parties” has the meaning set forth in the preamble.

“Payment Period” has the meaning given to it in the Assignment Agreement.

“Permitted Liens” means any Liens created, permitted or required by the Transaction Documents in favor of
Purchaser or its Affiliates.

“Person”  means  any  natural  person,  firm,  corporation,  limited  liability  company,  partnership,  joint  venture,
association, joint-stock company, trust, unincorporated organization, Governmental Authority or any other legal
entity, including public bodies, whether acting in an individual, fiduciary or other capacity.

“Product” has the meaning given to it in the Assignment Agreement.

“Product  Approval”  means,  with  respect  to  the  Product  for  a  particular  indication,  a  successful  biologics
license application (BLA) or new drug application (NDA) approval by the FDA or

3

[*] = 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.

marketing authorization application (MAA) grant by the EMA, as applicable, of the Product for such indication,
the  official  approval  of  which  is  required  before  any  lawful  commercial  sale  or  marketing  of  the  Product  for
such indication.

“Purchase Price” has the meaning set forth in Section 2.2.

“Purchased Commercial Payments” or “Purchased Assets” means all of Seller’s rights under the Roche APA
to receive or obtain:

(a) 0.50% of Nets Sales of all Products during the applicable Payment Period in all countries payable by
Roche pursuant to Section [*] of the Roche APA (a monetary claim (Nw. enkelt pengekrav) under Norwegian
law) and Section [*] of the Assignment Agreement at the times set forth in the Assignment Agreement and all
of  Sellers’  entire  right  to  receive  payment  of  all  such  amounts  (including  the  right  to  receive  [*]  under  the
Roche  APA  and  the  rights  assigned  to  Purchaser  pursuant  to  the  Assignment  Agreement),  in  each  case,  (i)
regardless  of  how  Roche  and/or  Affitech  characterize  such  payments  or  consideration  and  (ii)  without
reduction, deduction or other Set-off, including any such reduction, deduction or other Set-off [*] (such as those
relating to [*]), subject to the terms of the Assignment Agreement.

(b) all accounts evidencing the rights to the payments and amounts described in clause (a) above;

(c) all proceeds of any of the foregoing; and

(d) all of Seller’s rights under [*] and [*] of the Roche APA, in each case to the extent pertaining to the

Assigned Commercial Payments including the right to enforce such rights directly against Roche.

“Purchaser” has the meaning set forth in the preamble.

“Purchaser Account”  means  Purchaser’s  deposit  account  with  Silicon  Valley  Bank  which  account  Purchaser
may change from time to time by furnishing written notice to Roche.

“Roche” has the meaning set forth in the recitals.

“Roche Basel” has the meaning set forth in the recitals.

“Roche Little Falls” has the meaning set forth in the recitals.

“Roche APA” has the meaning set forth in the recitals.

“Roche License Agreement” has the meaning set forth in the recitals.

“SEC” means the U.S. Securities and Exchange Commission.

“Seller” has the meaning set forth in the preamble.

“Seller Account” means the Seller’s account with DB Norway which account Seller may change from time to
time by furnishing written notice to Purchaser.

[*] = 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

“Set-off” means any set-off, off-set, rescission, counterclaim, credit, reduction, or deduction, including any of
the foregoing resulting from Seller’s breach of the Roche License Agreement, Roche APA, or the Assignment
Agreement.

“Tax”  or  “Taxes”  means  any  federal,  state,  local  or  non-U.S.  income,  gross  receipts,  license,  payroll,
employment, excise, severance, occupation, premium, windfall profits, environmental, customs duties, capital
stock, franchise, profits, withholding, social security, unemployment, disability, real property, personal property,
abandoned  property,  value  added,  alternative  or  add-on  minimum,  estimated  or  other  tax  of  any  kind
whatsoever, including any interest, penalty or addition thereto, whether disputed or not.

“Third Party” shall mean any Person other than Seller or Purchaser or their respective Affiliates.

“Transaction  Documents”  means  this  Agreement,  the  Settlement  Agreement  (as  defined  in  the  Assignment
Agreement), the Assignment Agreement, the Bill of Sale, and the CDA.

“U.S.” or “United States” means the United States of America, its fifty (50) states, each territory thereof and
the District of Columbia.

Section 1.2 Rules of Construction. Unless the context otherwise requires, in this Agreement:

(a)

A term has the meaning assigned to it, and an accounting term not otherwise defined has

the meaning assigned to it in accordance with GAAP.

(b) Words of the masculine, feminine or neuter gender shall mean and include the correlative

words of other genders.

(c)

The definitions of terms shall apply equally to the singular and plural forms of the terms

defined.

(d)
the phrase “without limitation.”

The terms “include,” “including” and similar terms shall be construed as if followed by

(e)

Unless  otherwise  specified,  references  to  an  agreement  or  other  document  include
references to such agreement or document as from time to time amended, restated, reformed, supplemented or
otherwise  modified  in  accordance  with  the  terms  thereof  (subject  to  any  restrictions  on  such  amendments,
restatements,  reformations,  supplements  or  modifications  set  forth  herein  or  in  any  of  the  other  Transaction
Documents) and include any annexes, exhibits and schedules attached thereto.

(f)

References  to  any  Applicable  Law  shall  include  such  Applicable  Law  as  from  time  to
time in effect, including any amendment, modification, codification, replacement or reenactment thereof or any
substitution therefor.

(g)

References  to  any  Person  shall  be  construed  to  include  such  Person’s  successors  and

permitted assigns (subject to any restrictions on assignment, transfer or delegation

[*] = 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

set  forth  herein  or  in  any  of  the  other  Transaction  Documents),  and  any  reference  to  a  Person  in  a  particular
capacity excludes such Person in other capacities.

(h)

The  word  “will”  shall  be  construed  to  have  the  same  meaning  and  effect  as  the  word

“shall.”

(i)

The  words  “hereof,”  “herein,”  “hereunder”  and  similar  terms  when  used  in  this
Agreement  shall  refer  to  this  Agreement  as  a  whole  and  not  to  any  particular  provision  hereof,  and  Article,
Section and Exhibit references herein are references to Articles and Sections of, and Exhibits to, this Agreement
unless otherwise specified.

(j)

In the computation of a period of time from a specified date to a later specified date, the

word “from” means “from and including” and each of the words “to” and “until” means “to but excluding.”

(k) Where any payment is to be made, any funds are to be applied or any calculation is to be
made under this Agreement on a day that is not a Business Day; unless this Agreement otherwise provides, such
payment  shall  be  made,  such  funds  shall  be  applied  and  such  calculation  shall  be  made  on  the  succeeding
Business Day, and payments shall be adjusted accordingly.

(l)

Any reference herein to a term that is defined by reference to its meaning in the Roche

APA shall refer to such term’s meaning in the Roche APA as in existence on the date hereof.

ARTICLE II
PURCHASE AND SALE OF THE PURCHASED COMMERCIAL PAYMENTS

Section 2.1

Purchase and Sale.

(a)

Subject to the terms and conditions of this Agreement, on the Closing Date, Seller hereby
sells, assigns, transfers and conveys to Purchaser, and Purchaser hereby purchases, acquires and accepts from
Seller, all of Seller’s rights, title and interest in and to the Purchased Commercial Payments, free and clear of
any and all Liens, other than Permitted Liens. Seller and Purchaser intend and agree that the sale, assignment,
transfer and conveyance of the Purchased Commercial Payments under this Agreement shall be, and are, a true,
complete,  absolute  and  irrevocable  assignment  and  sale  by  Seller  to  Purchaser  of  the  Purchased  Commercial
Payments and that such assignment and sale shall provide Purchaser with the full benefits of ownership and as
purchaser  of  the  Purchased  Commercial  Payments.  Neither  Seller  nor  Purchaser  intends  the  transactions
contemplated  under  the  Transaction  Documents  to  be,  or  for  any  purpose  to  be  characterized  as,  a  loan  from
Purchaser to Seller or a pledge. Seller waives any right to contest or otherwise assert that this Agreement does
not  constitute  a  true,  complete,  absolute  and  irrevocable  sale  and  assignment  by  Seller  to  Purchaser  of  the
Purchased  Commercial  Payments  under  Applicable  Law,  which  waiver  shall  be  enforceable  against  Seller  in
any Bankruptcy Event in respect of Seller.

(b)

The Parties further acknowledge and agree that the Purchased Commercial Payments and

the sale, assignment, transfer and conveyance thereof under this Agreement fully

[*] = 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.

6

comply with and do not violate any Applicable Law and that they will not contest the validity or enforceability
of the Purchased Commercial Payments thereunder.  Without limiting the foregoing, each Party represents and
warrants  to  the  other  Party  that,  to  the  best  of  its  knowledge,  all  such  payment  obligations  and  the  sale  and
assignment  thereof,  as  contemplated  herein  and  as  described  in  the  Assignment  Agreement,  are  fully
enforceable  against  the  Parties  and  the  parties  thereto  under  all  such  Applicable  Law.    To  the  fullest  extent
possible  under  Applicable  Law,  Seller  waives  any  right  to  contest  or  otherwise  assert  that  any  such  payment
obligations or the sale, assignment, transfer and conveyance of the Purchased Commercial Payments under this
Agreement  fail  to  comply  with,  violate,  or  are  otherwise  unenforceable  under  Applicable  Law,  which  waiver
shall be enforceable against Seller in any Bankruptcy Event in respect of Seller.

Section 2.2

Purchase Price. In  full  consideration  for  the  sale,  assignment,  transfer  and  conveyance
of  the  Purchased  Commercial  Payments,  and  subject  to  the  terms  and  conditions  set  forth  herein,  Purchaser
shall pay (or cause to be paid) to Seller, or Seller’s designee the following amount(s) (the “Purchase Price”):

(a)

on  the  Closing  Date,  the  sum  of  Six  Million  Dollars  ($6,000,000),  in  immediately

available funds by wire transfer to Seller Account (“Initial Payment”);

(b)

the  following  one-time  milestone  payments  within  [*]  Business  Days  from  the  first
achievement  of  the  corresponding  milestone  event  specified  below  (collectively,  the  “Affitech  Milestone
Payments”):

(i)

Product Approvals:

Milestone Event achieved by Roche
Product Approval in the U.S. of the Product for a first (1st)
indication by FDA
[*]
Product Approval in the U.S. of the Product for a second
(2nd) indication by FDA
[*]
Total Affitech Milestone Payments possible under this
Section 2.2(b)(i):

Affitech Milestone Payment
Two million, five hundred thousand
Dollars ($2,500,000 USD)
[*]
Two million, five hundred thousand
Dollars ($2,500,000 USD)
[*]
[*]

(ii)

Sales-Based Milestones:  Purchaser  shall  pay  to  Seller  out  of  its  receipts  of  the
Assigned  Commercial  Payments  from  Roche  a  one-time,  sales-based  milestone  payment,  within  [*]  Business
Days  from  the  end  of  the  applicable  Calendar  Year,  following  the  first  achievement  by  Roche  of  annual  Net
Sales  of  the  Product  in  a  given  Calendar  Year  (“Annual  Net  Sales”)  that  exceed  each  of  the  following
thresholds in such Calendar Year (each, the “Annual Net Sales Threshold”):

[*] = 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.

7

Annual Net Sales Threshold

First Calendar Year ending on or before [*] in which
Roche’s Annual Net Sales of the Product exceed [*] in such
Calendar Year*
First Calendar Year in which Roche’s Annual Net Sales of
the Product exceed [*] in such Calendar Year
First Calendar Year in which Roche’s Annual Net Sales of
the Product exceed [*] in such Calendar Year
First Calendar Year in which Roche’s Annual Net Sales of
the Product exceed [*] in such Calendar Year
Total Affitech Milestone Payments possible under this
Section 2.2(b)(ii):

Affitech Milestone Payment
[*]

[*]

[*]

[*]

[*]

*If the first Annual Net Sales Threshold set forth in the table above is not achieved in a given Calendar Year
prior to [*], the corresponding first Affitech Milestone Payment of [*] shall terminate and shall not be payable
(regardless of whether the corresponding Annual Net Sales threshold is later achieved), although other Affitech
Milestone  Payments  set  forth  above  remain  eligible  to  become  payable  upon  achievement  of  the  Annual  Net
Sales thresholds corresponding to such other Affitech Milestone Payments as otherwise required in this Section
2.2(b).

For clarity, each of the foregoing Affitech Milestone Payments shall only be paid once, regardless of whether
such Annual Net Sales Threshold is subsequently achieved in a future Calendar Year.  In the event that more
than  one  of  the  foregoing  Annual  Net  Sales  Thresholds  is  first  achieved  in  a  single  Calendar  Year,  then  the
corresponding sales-based Affitech Milestone Payment for each such milestone event shall be payable to Seller
hereunder.

Section 2.3 No Assumed Obligations. Notwithstanding any provision in this Agreement or any other
writing  to  the  contrary,  Purchaser  is  purchasing,  acquiring  and  accepting  only  the  Purchased  Commercial
Payments  and  is  not  assuming  any  liability  or  obligation  of  Seller  or  any  of  Seller’s  Affiliates  of  whatever
nature, whether presently in existence or arising or asserted hereafter, whether known or unknown (including
any  liability  or  obligation  of  Seller  under  the  Roche  License  Agreement,  the  Roche  APA,  or  the  Assignment
Agreement and any payments required to be made to Third Parties). All such liabilities and obligations shall be
retained by and remain liabilities and obligations of Seller or its Affiliates, as the case may be (the “Excluded
Liabilities and Obligations”).

Section 2.4

Excluded  Assets.  Purchaser  does  not,  by  purchase,  acquisition  or  acceptance  of  the
rights, title or interest granted hereunder or otherwise pursuant to any of the Transaction Documents, purchase,
acquire  or  accept  any  assets  or  rights,  contract  or  otherwise,  of  Seller  other  than  the  Purchased  Commercial
Payments.

Section 2.5 Closing.  The  closing  of  the  transactions  contemplated  under  this  Agreement  (the

“Closing”) shall take place remotely simultaneously with the execution and delivery of this

[*] = 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

Agreement via electronic delivery of the executed Transaction Documents and other deliverables. The date on
which the Closing occurs is referred to herein as the “Closing Date”.

Section 2.6 Closing  Deliverables  of  Seller.  At  the  Closing,  Seller  shall  deliver  or  cause  to  be

delivered to Purchaser the following:

(a)

(b)

(c)

this Agreement executed by Seller;

the Bill of Sale executed by Seller;

the Assignment Agreement duly executed by Roche and Seller;

Section 2.7 Closing Deliverables of Purchaser. At the Closing, Purchaser shall execute and deliver

or cause to be delivered to Seller the following:

(a)

(b)

(c)

(d)

this Agreement executed by Purchaser;

the Bill of Sale executed by Purchaser;

the Assignment Agreement duly executed by Purchaser; and

the Initial Payment in accordance with Section 2.2(a).

ARTICLE III
REPRESENTATIONS AND WARRANTIES OF SELLER

Seller hereby represents and warrants to Purchaser as follows:

Section 3.1 Organization.  Seller  is  a  corporation  duly  organized,  validly  existing  and  in  good
standing  under  the  laws  of  Norway  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  and  to  exercise  its  rights  and  to  perform  its  obligations  under  the  Roche  APA  and  the  Transaction
Documents. 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 Applicable Law.

Section 3.2

Solvency. Seller  has  determined  that,  and  by  virtue  of  its  entering  into  the  transactions
contemplated  by  the  Transaction  Documents  and  its  authorization,  execution  and  delivery  of  the  Transaction
Documents, Seller’s incurrence of any liability hereunder or thereunder or contemplated hereby or thereby is in
its own best interests. Upon consummation of the transactions contemplated by the Transaction Documents and
the application of the proceeds therefrom, (a) the present fair saleable value of Seller’s property and assets will
be  greater  than  the  sum  of  its  debts,  liabilities  and  other  obligations,  including  contingent  liabilities;  (b)  the
present fair saleable value of Seller’s property and assets will be greater than the amount that would be required
to  pay  its  probable  liabilities  on  its  existing  debts,  liabilities  and  other  obligations,  including  contingent
liabilities,  as  they  become  absolute  and  matured;  (c)  Seller  will  be  able  to  realize  upon  its  assets  and  pay  its
debts,  liabilities  and  other  obligations,  including  contingent  liabilities,  as  they  mature;  (d)  Seller  will  not  be
rendered insolvent, will not have unreasonably

[*] = 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

small capital with which to engage in its business and will not be unable to pay its debts as they mature; (e)
Seller has not incurred, will not incur and does not have any present plans or intentions to incur debts, liabilities
or other obligations beyond its ability to pay such debts, liabilities or other obligations as they become absolute
and matured; (f) Seller will not have become subject to any Bankruptcy Event; (g) after the Closing, Seller will
have enough capital to operate its business for at least one (1) year following the Closing; and (h) Seller will not
have been rendered insolvent within the meaning of Section 101(32) of Title 11 of the United States Code. No
step has been taken or is intended by Seller or, to the knowledge of Seller, any other Person to make Seller
subject to a Bankruptcy Event,

Section 3.3

Taxes; No Liens or Conflicts.  Seller has paid all Taxes required to be paid by it, except
for any such Taxes that are not yet due or delinquent, and there are no unpaid Taxes or other amounts due by
Seller to any taxing authority. There are no Liens for Taxes upon the Purchased Commercial Payments or any of
Seller’s assets. Without  limiting  the  foregoing,  the  Purchased  Commercial  Payments  are  free  and  clear  of  all
Liens  (other  than  Permitted  Liens),  and  upon  the  sale,  assignment,  transfer  and  conveyance  by  Seller  of  the
Purchased Commercial Payments to Purchaser, Purchaser shall acquire good, valid and marketable title to and
rights as owner of the Purchased Commercial Payments free and clear of all Liens (other than Permitted Liens).
None of the execution and delivery by Seller of any of the Transaction Documents, the performance by Seller of
the obligations contemplated hereby or thereby or the consummation of the transactions contemplated by this
Agreement  or  any  of  the  other  Transaction  Documents  will  contravene,  conflict  with,  result  in  a  breach,
violation, cancellation or termination of, constitute a default, give any Person the right to exercise any remedy
or  obtain  any  additional  rights  under  any  term  or  provision  of  (a)  any  contract,  agreement,  commitment,  or
obligation to which Seller or any of its Affiliates is a party or by which Seller or any of its Affiliates or any of
their respective assets or properties is bound or committed or (b) any of the organizational documents of Seller.

Section 3.4 Roche APA.  Neither Seller, and to the knowledge of Seller, nor Roche are in breach or
violation of or in default under or have previously been in breach or violation of or in default under, the Roche
APA. Nothing in the redacted portions of the Roche APA will adversely affect the Purchaser’s right to receive
the Assigned Commercial Payments.  Seller has not received or sent any notice (i) regarding the termination,
breach, default or violation of, or the intention to terminate, breach, default, or violate, the Roche APA, in whole
or in part, (ii) that any event has occurred that, with notice or the passage of time or both, would constitute a
default  under  the  Roche  APA,  (iii)  challenging  the  legality,  validity  or  enforceability  of  the  Roche  APA  or
Roche’s  obligation  [*]  thereunder,  or  (iv)  asserting  that  Seller  or  Roche  is  in  default  of  their  obligations
thereunder. To the knowledge of Seller, no event has occurred that, with notice or the passage of time or both,
would (1) give Roche the right to refuse to [*] thereunder, (2) give Roche or Seller the right to terminate the
Roche  APA,  or  (3)  constitute  or  give  rise  to  any  breach  or  default  in  the  performance  of  the  Roche  APA  by
Seller or Roche. Without limiting the foregoing, Seller has completed [*] under the Roche APA and the Roche
License  Agreement  and  has  fully  complied  with  all  such  obligations  under  the  Roche  APA  and  the  Roche
License Agreement, including (A) completing [*] (as defined in the Roche APA) under Section [*] of the Roche
APA, (B) providing [*] in connection with the [*], providing [*] relating to [*] and [*] as required under Section
[*] of the Roche APA, (C) completing [*] (as defined in the Roche APA) and [*] as required under Section [*]
of the Roche APA.  Seller has [*] and provided proper and timely notice and instructions to Roche [*] and [*],
in each instance, consistent with the terms and conditions of the

[*] = 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

Roche  APA,  including  Section  [*]  thereof.  For  the  avoidance  of  doubt,  Purchaser  acknowledges  that  the
Assigned Commercial Payments, and Roche’s obligations to make such payments, are subject to the terms and
conditions  of  the  Roche  APA  and  the  Assignment  Agreement.  For  example,  Roche  may  (i)  cease  the
development and/or commercial activities with regard to the Product, and/or (ii) not make a filing of a BLA for
the Product or (iii) not launch the Product, in which case the Assigned Commercial Payments would not accrue.

ARTICLE IV
REPRESENTATIONS AND WARRANTIES OF PURCHASER

Purchaser hereby represents and warrants to Seller as of the date hereof as follows:

Section 4.1 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 necessary powers and authority, and
all  licenses,  permits,  franchises,  authorizations,  consents  and  approvals  of  all  Governmental  Authorities,
required to own its property and conduct its business as now conducted and to exercise its rights and to perform
its obligations under the Transaction Documents. Purchaser is duly qualified to transact business and is in good
standing in each jurisdiction in which such qualification or good standing is required by Applicable Law.

Section 4.2

Solvency.  Purchaser  has  determined  that,  and  by  virtue  of  its  entering  into  the
transactions  contemplated  by  the  Transaction  Documents  and  its  authorization,  execution  and  delivery  of  the
Transaction Documents, Purchaser’s incurrence of any liability hereunder or thereunder or contemplated hereby
or thereby is in its own best interests. Prior to and upon consummation of the transactions contemplated by the
Transaction  Documents  and  the  application  of  the  proceeds  therefrom,  (a)  the  present  fair  saleable  value  of
Purchaser’s property and assets will be greater than the sum of its debts, liabilities and other obligations; (b) the
present  fair  saleable  value  of  Purchaser’s  property  and  assets  will  be  greater  than  the  amount  that  would  be
required  to  pay  its  probable  liabilities  on  its  existing  debts,  liabilities  and  other  obligations,  as  they  become
absolute and matured; (c) Purchaser will be able to realize upon its assets and pay its debts, liabilities and other
obligations, as they mature; (d) Purchaser will not be rendered insolvent and will not be unable to pay its debts
as they mature; (e) Purchaser has not incurred, will not incur and does not have any present plans or intentions
to incur debts, liabilities or other obligations beyond its ability to pay such debts, liabilities or other obligations
as they become absolute and matured; (f) Purchaser will not have become subject to any Bankruptcy Event; (g)
after the Closing, Purchaser will have enough capital to operate its business for at least one (1) year following
the Closing; and (h) Seller will not have been rendered insolvent within the meaning of Section 101(32) of Title
11  of  the  United  States  Code.  No  step  has  been  taken  or  is  intended  by  Purchaser  or,  to  the  knowledge  of
Purchaser, any other Person to make Purchaser subject to a Bankruptcy Event.

Section 4.3 No Conflicts. None of the execution and delivery by Purchaser of any of the Transaction
Documents,  the  performance  by  Purchaser  of  the  obligations  contemplated  hereby  or  thereby  or  the
consummation of the transactions contemplated by this Agreement or any of the other Transaction Documents
will contravene, conflict with, result in a breach, violation,

[*] = 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

cancellation or termination of, constitute a default, give any Person the right to exercise any remedy or obtain
any additional rights under any term or provision of (a) any contract, agreement, commitment, or obligation to
which Purchaser or any of its Affiliates is a party or by which Purchaser or any of its Affiliates or any of their
respective assets or properties is bound or committed or (b) any of the organizational documents of Purchaser.

Section 4.4 No  Broker.    There  is  no  broker,  finder,  investment  banker,  financial  advisor  or  other
Person acting or who has acted on behalf of Purchaser or its Affiliates, who is entitled to receive any brokerage,
finder’s  or  financial  advisory  fee  from  Seller  or  any  of  its  Affiliates  in  connection  with  the  transactions
contemplated by this Agreement.

ARTICLE V
COVENANTS

The Parties covenant and agree as follows:

Section 5.1 Commercially Reasonable Efforts; Further Assurances.

(a)

Subject to the terms and conditions of this Agreement, each Party will use commercially
reasonable efforts to take, or cause to be taken, all actions and to do, or cause to be done, all things necessary to
consummate  the  transactions  contemplated  by  the  Transaction  Documents  to  which  Seller  or  Purchaser,  as
applicable,  is  party,  including  to  (i)  effect  the  sale,  assignment,  transfer  and  conveyance  of  the  Purchased
Commercial Payments to Purchaser pursuant to this Agreement, (ii) execute and deliver such other documents,
certificates, instruments, agreements and other writings and to take such other actions as may be necessary or
desirable, or reasonably requested by the other Party, in order to consummate or implement expeditiously the
transactions contemplated by any Transaction Document to which Seller or Purchaser, as applicable, is party,
and (iii) enable the other Party to exercise or enforce any of its rights under the Transaction Documents.

(b)

Each  Party  shall  comply  with  all  Applicable  Laws  with  respect  to  the  Transaction

Documents, their respective performance thereunder and the transactions pursuant thereto.

(c)

Neither  Party  shall  enter  into  any  contract,  agreement  or  other  legally  binding
arrangement (whether written or oral), or grant any right to any other Person, in each case that would (i) conflict
with the Transaction Documents or the assignments made, rights granted or obligations to be performed by it
thereunder, (ii) impair the other Party’s ability to perform its obligations under the Transaction Documents, or
(iii)  serve  or  operate  to  limit,  circumscribe  or  impair  any  of  the  other  Party’s  rights  under  the  Transaction
Documents (or the other Party’s ability to exercise any such rights).

Section 5.2 Non-Impairment  of  Purchaser’s  Rights.  Seller  shall  not,  without  the  prior  written
consent  of  Purchaser,  (i)  forgive,  release  or  reduce  any  amount,  or  delay  or  postpone  any  amount,  owed  to
Seller or Purchaser relating to the Purchased Commercial Payments or take  any action inconsistent with or that
otherwise  impairs  any  right  of  Purchaser  to  receive  the  full  benefit  and  payment  in  full  of  the  Purchased
Commercial  Payments  as  contemplated  herein  or  as  otherwise  contemplated  in  the  Assignment  Agreement
(including to perform and comply in all respects with

[*] = 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

its duties and obligations under the Roche APA), (ii) waive, amend, cancel, terminate or fail to terminate any
material rights constituting or relating to the Purchased Commercial Payments, nor (iii) withhold any consent,
grant  any  consent,  exercise  or  waive  (or  fail  to  exercise  or  waive)  any  right  or  option,  send  (or  refrain  from
sending)  any  notice,  or  take  or  fail  to  take  any  action  in  respect  of,  affecting  or  relating  to  the  Purchased
Commercial Payments.

Section 5.3

Existence. Seller shall (a) preserve and maintain its existence, (b) preserve and maintain
its rights, franchises and privileges, and (c) qualify and remain qualified in good standing in each jurisdiction in
which it is organized or qualified to do business for at least [*] following the Closing.

ARTICLE VI
PAYMENTS; DAMAGES

Section 6.1

Payments.

(a)

General.

(i)

In accordance with this Agreement and the Assignment Agreement, Purchaser has
the right to directly receive all Purchased Commercial Payments to the Purchaser Account.  Without limiting the
foregoing,  the  Parties  intend  that  Seller  and  Roche  shall  follow  the  payment  instructions  set  forth  in  the
Assignment Agreement.  

(ii)

Upon  execution  of  the  Assignment  Agreement,  Purchaser  will  be  solely
responsible  to  collect  payment  of  the  Purchased  Commercial  Payments  from  the  payor  pursuant  to  the
Assignment  Agreement.    Without  limiting  the  foregoing,  other  than  Seller’s  performance  of  its  obligations
under this Agreement and the Assignment Agreement, Seller has no obligation with respect to the payment or
non-payment of the Purchased Commercial Payments to Purchaser by Roche, and Purchaser understands that
the accrual of the Purchased Commercial Payments are subject to the conditions set forth in the Roche APA and
the Assignment Agreement, as applicable.

this Agreement by wire transfer of immediately available funds.

(iii)

Purchaser shall make all payments required to be made by it to Seller pursuant to

(iv)

Purchaser shall be entitled to deduct and withhold from any consideration payable
pursuant to this Agreement such amounts as it is required to deduct and withhold with respect to the making of
such payment under any Applicable Law relating to Tax. To the extent that any amounts are so deducted and
withheld and paid over to or deposited with the relevant Governmental Authority, such withheld amounts shall
be treated for all purposes of this Agreement as having been paid to Seller in respect to which such deduction
and withholding were made; provided that Purchaser must (1) promptly furnish to Seller evidence of any and all
such  amounts  withheld  and/or  deducted  and  payments  thereof  and  (2)  provide  full  cooperation  with  Seller  to
reduce or avoid any withholding.

[*] = 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.

13

(b)

Erroneous Payments.  

(i)

If  Roche  or  any  other  Person  (notwithstanding  the  terms  of  the  Assignment
Agreement (as applicable) or any other payment instructions specified by Purchaser from time to time) makes
any  payment  in  respect  of  the  Purchased  Commercial  Payments  that  is  owed  to  Purchaser  as  a  Purchased
Commercial  Payment  hereunder,  to  Seller  (or  to  any  of  its  Affiliates)  instead  of  to  Purchaser,  then  (1)  Seller
shall hold (or cause such Affiliate to hold) such payment in trust for the sole benefit of Purchaser; (2) Seller (or
such Affiliate) shall have no right, title or interest whatsoever in such payment and shall not create or suffer to
exist any Lien thereon; and (3) Seller (or such Affiliate) promptly, and in any event no later than [*] Business
Days following the receipt by Seller (or such Affiliate) of such payment, shall remit, or cause to be remitted, an
amount  equal  to  such  payment  to  the  Purchaser  Account,  without  Set-off,  by  wire  transfer  of  immediately
available funds, in the exact form received with all necessary endorsements.

(ii)

If Roche takes (1) any Set-off in full or partial satisfaction of a judgment against
Seller  or  a  settlement  with  Seller,  (2)  any  Set-off  resulting  from  Seller’s  breach  of  the  Roche  APA  or  this
Agreement for which Roche may otherwise be entitled to take or claim based on Seller’s breach of the Roche
APA,  or  the  Assignment  Agreement,  as  applicable,  or  (3)  any  other  Set-off  based  on  other  amounts  Seller
allegedly owes Roche, in any case where such Set-off has the effect of reducing the amount of any Commercial
Payment  otherwise  required  to  be  paid  by  Roche  to  Purchaser  pursuant  to  the  Assignment  Agreement,  then,
without limiting any other rights or remedies of Purchaser, Purchaser shall have the right to credit and set-off
against any Affitech Milestone Payments otherwise payable under Section 2.2 the amount of any such Set-off
taken by Roche.

(iii)

If Seller fails to timely comply with its obligations under the foregoing clause (i),
then all amounts not timely paid by the due date provided therein shall accrue interest from and including the
date  such  amount  was  due  through  but  excluding  the  date  such  payment  in  full  (together  with  all  interest
thereon) is made to Purchaser, at a rate, calculated on a 365-day or 366-day basis, as applicable, equal to the
then-current prime rate of interest quoted in the Money Rates section of the on-line edition of the Wall Street
Journal (at http://www.markets.wsj.com)  plus  [*],  compounded  annually,  not  to  exceed  the  maximum  interest
that may be charged under Applicable Law.

(c)

Seller shall not attempt to revoke, amend, modify, supplement, restate, waive, cancel or
terminate  the  executed  Assignment  Agreement  or  the  Roche  APA  without  the  prior  written  consent  of
Purchaser.

ARTICLE VII
MISCELLANEOUS

Section 7.1

Termination. This Agreement shall terminate six (6) months following the full payment
and satisfaction of any amounts due to the Purchaser under the Roche APA, the Assignment Agreement and this
Agreement  and  receipt  by  Purchaser  of  all  payments  of  the  Purchased  Commercial  Payments  to  which  it  is
entitled pursuant to the terms of this Agreement. In the event of the termination of this Agreement pursuant to
this Section 7.1, this Agreement shall

[*] = 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

become void and of no further force and effect, except for those rights and obligations that have accrued prior to
the date of such termination or relate to any period prior thereto, including the payment in accordance with the
terms hereof of the Purchased Commercial Payments or other monetary payment on account of the Purchased
Commercial Payments, or remain outstanding pursuant to the terms of this Agreement. Notwithstanding the
foregoing, (a) Article I, Section 5.3, Article VI, and Article VII shall survive such termination; and (b) other
than with respect to the surviving provisions enumerated in clause (a), there shall be no liability on the part of
any Party, any of its Affiliates or Controlling Persons or any of their respective officers, directors, equity-
holders, debtholders, members, partners, Controlling Persons, managers, agents or employees, other than as
provided for in this Section 7.1. Nothing contained in this Section 7.1 shall relieve any Party from liability for
any breach of this Agreement that occurs prior to such termination, which liability shall survive such
termination.

Section 7.2

Survival.  All  representations,  warranties  and  covenants  made  herein  and  in  any  other
Transaction Document or any certificate or other written documentation delivered pursuant thereto shall survive
the  Closing  and  shall  continue  in  full  force  and  effect,  and  any  Party  shall  be  entitled  to  recover  any  losses
related thereto until the termination of this Agreement pursuant to Section 7.1 hereof.

Section 7.3

Specific  Performance;  Equitable  Relief.  Each  of  the  Parties  acknowledges  that  the
other Party will have no adequate remedy at law if it fails to perform any of its obligations under any of the
Transaction  Documents.  In  such  event,  each  of  the  Parties  agrees  that  the  other  Party  shall  have  the  right,  in
addition to any other rights it may have (whether at law or in equity), to specific performance of this Agreement
and to pursue any other equitable remedies including injunction. Each of the Parties may pursue such specific
performance or other equitable remedies without going through any of the procedures set forth in Article VI.

Section 7.4 Notices. All notices, consents, waivers and other communications hereunder shall be in
writing and shall be effective (a) upon receipt when sent through registered, certified or first-class mail, return
receipt requested, postage prepaid, with such receipt to be effective the date of delivery indicated on the return
receipt, (b) upon receipt when sent by an overnight courier, (c) on the date personally delivered to an authorized
officer of the Party to which sent, or (d) on the date transmitted by facsimile or other electronic transmission
with a confirmation of receipt, in each case confirmed in writing as above with a copy emailed and addressed to
the recipient as follows:

if to Seller, to:

Affitech Research AS
Lillogata 5M
0484 Oslo
Norway
Attn: Managing Director
Email: [*]

with a copy to (which shall not constitute notice):

15

[*] = 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.

Actigen Ltd
St. John’s Innovation Centre
Cowley Road, Cambridge
CB4 0WS
United Kingdom
Attn: Managing Director

if to Purchaser, to:

XOMA (US) LLC
2200 Powell Street, Suite 310
Emeryville, CA 94608
Attention: Legal Department
Telephone: [*]
Facsimile: [*]
Email: [*]

with a copy to (which shall not constitute notice):

Paul Hastings LLP
4747 Executive Drive
Twelfth Floor
San Diego, CA 92121
Attention: Deyan Spiridonov
Telephone: (858) 458-3000
Email: spiri@paulhastings.com

Each  Party  may,  by  notice  given  in  accordance  herewith  to  the  other  Party,
designate  any  further  or  different  address  to  which  subsequent  notices,  consents,
waivers and other communications shall be sent.

Section 7.5

Successors  and  Assigns.  The  provisions  of  this  Agreement
shall  be  binding  upon  and  inure  to  the  benefit  of  the  Parties  and  their  respective
successors and permitted assigns. Except as set forth in the penultimate sentence of
this Section 7.5, Seller shall not be entitled to transfer or assign (including by merger,
consolidation,  operation  of  law  or  otherwise)  any  of  Seller’s  obligations  and  rights
under  this  Agreement,  without  the  written  consent  of  the  Purchaser.  Purchaser  may
assign any of its rights to receive the Purchased Commercial Payments hereunder, in
whole  or  in  part,  to  any  Third  Party,  subject  to  the  terms  of  the  Assignment
Agreement.  Purchaser  shall  give  notice  of  any  such  assignment  to  Seller  promptly
after the occurrence thereof. Notwithstanding the foregoing, either Party may, except
that in the case of Seller not before the first anniversary of the Effective Date, without
the written consent of the other, assign this Agreement and its rights and delegate its
obligations  hereunder  to  (1)  an  Affiliate  or  (2)  an  entity  that  acquires  all  or
substantially  all  of  the  business  or  assets  of  the  assigning  party  to  which  this
Agreement pertains in connection with (i) the transfer or sale of all or substantially all
of its business, or (ii) in the event of its merger, consolidation, change in control or
similar transaction, in the case of each of (i) and (ii), if and only if any such permitted
assignee assumes

[*] = 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

unconditionally in a written document all obligations of its assignor under this
Agreement and delivers to the non-assigning Party such written document at least [*]
Business Days prior to the consummation of the applicable transaction.  Any
purported assignment in violation of this Section 7.5 shall be null and void ab initio.

Section 7.6 Nature of Relationship.  The  relationship  between  Seller  and
Purchaser is solely that of seller and purchaser, and neither Seller nor Purchaser has
any fiduciary or other special relationship with the other Party or any of its Affiliates.
Nothing contained herein or in any other Transaction Document shall be deemed to
constitute Seller and Purchaser as a partnership, an association, a joint venture or any
other kind of entity or legal form for any purposes, including any Tax purposes. The
Parties  agree  that  they  shall  not  take  any  inconsistent  position  with  respect  to  such
treatment in any filing with any Governmental Authority.

Section 7.7

together  with 

the
Entire  Agreement.  This  Agreement, 
Exhibits hereto (which are incorporated herein by reference), the CDA, and the other
Transaction  Documents  constitute  the  entire  agreement  between  the  Parties  with
respect to the subject matter hereof and supersede all prior agreements (except for the
CDA),  understandings  and  negotiations,  both  written  and  oral,  between  the  Parties
with respect to the subject matter of this Agreement. No representation, inducement,
promise, understanding, condition or warranty not set forth herein (or in the Exhibits
hereto or the other Transaction Documents) has been made or relied upon by either
Party.  Neither  this  Agreement  nor  any  provision  hereof  is  intended  to  confer  upon
any Person other than the Parties and the other Persons referenced in Article VI any
rights or remedies hereunder.

Section 7.8 Governing Law.

(a)

THIS  AGREEMENT  SHALL  BE  GOVERNED  BY  AND
CONSTRUED  IN  ACCORDANCE  WITH  THE  INTERNAL  SUBSTANTIVE
LAWS  OF  THE  STATE  OF  NEW  YORK  WITHOUT  REFERENCE  TO  THE
RULES  THEREOF  RELATING  TO  CONFLICTS  OF  LAW,  AND  THE
OBLIGATIONS,  RIGHTS  AND  REMEDIES  OF  THE  PARTIES  HEREUNDER
SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

(b)

Each  of  the  Parties  hereby  irrevocably  and  unconditionally
submits,  for  itself  and  its  property,  to  the  exclusive  jurisdiction  of  a  court  with
applicable  jurisdiction  located  in  the  Southern  District  of  New  York  located  in  the
Borough  of  Manhattan,  and  any  appellate  court  from  any  thereof,  in  any  action  or
proceeding  arising  out  of  or  relating  to  this  Agreement,  or  for  recognition  or
enforcement  of  any  judgment,  and  each  of  the  Parties  hereby  irrevocably  and
unconditionally agrees that all claims in respect of any such action or proceeding may
be heard and determined in such court located in the Southern District of New York
in the Borough of Manhattan. Each of the Parties agrees that a final judgment in any
such  action  or  proceeding  shall  be  conclusive  and  may  be  enforced  in  other
jurisdictions by suit on the judgment or in any other manner provided by Applicable
Law.

(c)

Each  of  the  Parties  hereby  irrevocably  and  unconditionally
waives, to the fullest extent it may legally and effectively do so, any objection that it
may now or hereafter  have  to  the  laying  of  venue  of  any  suit,  action  or  proceeding
arising out of or relating to this Agreement in any court referred to in this Section 7.8.
Each of the Parties hereby irrevocably waives, to the

[*] = 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.

17

fullest extent permitted by Applicable Law, the defense of an inconvenient forum to
the maintenance of such action or proceeding in any such court.

(d)

Each  of  the  Parties  irrevocably  consents  to  service  of  process
in  the  manner  provided  for  notices  in  Section  7.4.  Nothing  in  this  Agreement  will
affect  the  right  of  any  Party  to  serve  process  in  any  other  manner  permitted  by
Applicable Law.

Section 7.9 Confidentiality.  All  Confidential  Information  (as  defined  in
that  certain  Mutual  Confidentiality  Agreement,  effective  as  of  [*],  by  and  between
the  Parties  (the  “CDA”))  exchanged  by  the  Parties  for  purposes  of  fulfilling  this
Agreement,  shall  remain  in  the  ownership  of  the  originating  Party,  shall  be
considered and be maintained as Confidential Information as specified in the CDA,
the terms and conditions of which are hereby incorporated herein by reference in their
entirety and made part of this Agreement. The Parties agree that the Parties are and
shall  be  subject  to  the  terms  and  conditions  of  the  CDA  as  applied  to  all  such
Confidential  Information  exchanged  by  the  Parties  for  purposes  of  fulfilling  this
Agreement,  which  terms  and  conditions  shall  continue  to  apply  hereunder  and  run
concurrently with the term of this Agreement and for a period of [*] years thereafter.
 Notwithstanding the foregoing, the terms and conditions of the CDA as incorporated
herein  are  expressly  amended  to  further  include  the  obligation  to  use  Confidential
Information  only  for  the  purpose  of  fulfilling  obligations  hereunder,  and  shall  not
otherwise be used for the benefit of the Party receiving Confidential Information or
for  the  benefit  of  a  Third  Party  without  prior  written  approval  from  the  Party
disclosing the Confidential Information.

Section 7.10 Severability. If one or more provisions of this Agreement are
held to be invalid, illegal or unenforceable by a court of competent jurisdiction, such
invalidity,  illegality  or  unenforceability  shall  not  affect  any  other  provision  of  this
Agreement, which shall remain in full force and effect, and the Parties shall replace
such  invalid,  illegal  or  unenforceable  provision  with  a  new  provision  permitted  by
Applicable  Law  and  having  an  economic  effect  as  close  as  possible  to  the  invalid,
illegal  or  unenforceable  provision.  Any  provision  of  this  Agreement  held  invalid,
illegal  or  unenforceable  only  in  part  or  degree  by  a  court  of  competent  jurisdiction
shall  remain  in  full  force  and  effect  to  the  extent  not  held  invalid,  illegal  or
unenforceable.

Section 7.11 Counterparts. This Agreement may be signed in any number
of counterparts, each of which shall be deemed an original, with the same effect as if
the  signatures  thereto  and  hereto  were  upon  the  same  instrument.  This  Agreement
shall  become  effective  when  each  Party  shall  have  received  a  counterpart  hereof
signed  by  the  other  Party.  Any  counterpart  may  be  executed  by  facsimile  or  other
electronic transmission, and such facsimile or other electronic transmission shall be
deemed an original.

Section 7.12 Amendments;  No  Waivers.  Neither  this  Agreement  nor  any
term or provision hereof may be amended, supplemented, restated, waived, changed
or  modified  except  with  the  written  consent  of  the  Parties.  No  failure  or  delay  by
either Party in exercising any right, power or privilege hereunder shall operate as a
waiver thereof nor shall any single or partial exercise thereof preclude any other or
further  exercise  thereof  or  the  exercise  of  any  other  right,  power  or  privilege.  No
notice  to  or  demand  on  either  Party  in  any  case  shall  entitle  it  to  any  notice  or
demand  in  similar  or  other  circumstances.  No  waiver  or  approval  hereunder  shall,
except  as  may  otherwise  be  stated  in  such  waiver  or  approval,  be  applicable  to
subsequent transactions. No

[*] = 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.

18

waiver or approval hereunder shall require any similar or dissimilar waiver or
approval thereafter to be granted hereunder.

Section 7.13 Cumulative  Remedies.  The  remedies  herein  provided  are

cumulative and not exclusive of any remedies provided by Applicable Law.

Section 7.14 Table of Contents and Headings. The Table of Contents and
headings  of  the  Articles  and  Sections  of  this  Agreement  have  been  inserted  for
convenience of reference only, are not to be considered a part hereof and shall in no
way modify or restrict any of the terms or provisions hereof.

Section 7.15 No Presumption Against Drafting Party. Each of the Parties
acknowledges that each Party to this Agreement has been represented by counsel in
connection  with  this  Agreement  and  the  transactions  contemplated  by  this
Agreement.  Accordingly,  any  rule  of  law  or  any  legal  decision  that  would  require
interpretation of any claimed ambiguities in this Agreement or any other Transaction
Document against the drafting party has no application and is expressly waived.

[SIGNATURE PAGE FOLLOWS]

19

[*] = 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, the Parties have executed this Agreement as of the

Effective Date.

AFFITECH RESEARCH AS

/s/ Michael Braunagel

By: 
Name: Michael Braunagel
Title: Managing Director

XOMA (US) LLC

/s/ Jim Neal

By:
Name: Jim Neal
Title: Chief Executive Officer

Exhibit List

Exhibit A:  Form of Assignment Agreement
Exhibit B: Bill of Sale
Exhibit C: Roche APA

[*] = 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.

 
  
 
  
 
  
 
  
   
   
 
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 the Registration Statements (Nos. 333-151416, 333-171429, 333-174730, 333-181849, 333-198719, 333-204367, 333-
212238, 333-218378 and 333-232398) on Form S-8 pertaining to the Amended and Restated 2010 Long Term Incentive and Stock Award Plan and the Amended 2015
Employee Stock Purchase Plan of XOMA Corporation and in the Registration Statement (No. 333- 223493) on Form S-3 of our report dated March 8, 2022, relating to
the consolidated financial statements of XOMA Corporation, appearing in this Annual Report on Form 10-K for the year ended December 31, 2021.

Exhibit 23.1

/s/ Deloitte & Touche LLP
San Francisco, California
March 8, 2022

Exhibit 31.1

I, James R. Neal, 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 8, 2022

/s/ JAMES R. NEAL
James R. Neal
Chief Executive Officer and Chairman of the Board of
Directors

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 8, 2022

/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), James R. Neal, Chief Executive Officer and
Chairman of the Board of Directors 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, 2021, 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 8th day of March, 2022

/s/ JAMES R. NEAL
James R. Neal
Chief Executive Officer and Chairman of the Board of Directors

/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.