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XBiotech Inc.

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

FORM 10-K
_______________________________________________________________

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2023
☐ Transaction Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Commission file number 001-37437
_______________________________________________________________

XBIOTECH INC.
(Exact name of Registrant as specified in its charter)

British Columbia, Canada
(State or other jurisdiction of incorporation or organization)

N/A
(IRS Employer Identification No.)

5217 Winnebago Ln, Austin, TX 78744
(Address of principal executive offices, including zip code)

Telephone Number (512) 386-2900
(Registrant's telephone number, including area code)
_______________________________________________________________

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

Title of each class
Common Stock, no par value

Trading Symbol(s)
XBIT

Name of each exchange on which registered
NASDAQ Global Select Market

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

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ☐    No  ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes  ☐    No  ☒

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

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

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

Large accelerated filer ☐

  Accelerated filer ☐

  Non-accelerated filer ☒

  Smaller Reporting Company ☒
  Emerging Growth Company ☐

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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new
or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the
filing reflect the correction of an error to previously issued financial statements.  ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received
by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

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

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant as of June 30, 2023, was approximately
$140,476,818, based upon the closing sales price for the registrant’s common stock, as reported on the NASDAQ Global Market. The calculation of the
aggregate market value of voting and non-voting common equity excludes 6,787,668 shares of common stock the registrant held by executive officers,
directors and shareholders that the registrant concluded were affiliates of the registrant on that date. Exclusion of such shares should not be construed to
indicate that any such person possesses the power, direct or indirect, to direct or cause the direction of management or policies of the registrant or that such
person is controlled by or under common control with the registrant.

As of March 15, 2024, 30,450,881 shares of the registrant’s Common Stock were outstanding.

_______________________________________________________________

Documents incorporated by reference:

Certain portions, as expressly described in this Annual Report on Form 10-K, of the registrant’s Proxy Statement for the 2024 Annual Meeting of the
Stockholders, to be filed not later than 120 days after the end of the year covered by this Annual Report, are incorporated by reference into Part III of this
Annual Report where indicated.

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ITEM 1. BUSINESS
ITEM 1A. RISK FACTORS
ITEM 1B. UNRESOLVED STAFF COMMENTS
ITEM 2. PROPERTIES
ITEM 3. LEGAL PROCEEDINGS
ITEM 4. MINE SAFETY DISCLOSURES

TABLE OF CONTENTS

PART I

PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER
PURCHASES OF EQUITY SECURITIES
ITEM 6. RESERVED
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKS
ITEM  8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
ITEM  9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL
DISCLOSURE
ITEM  9A.  CONTROLS AND PROCEDURES.
ITEM  9B. OTHER INFORMATION

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
ITEM 11. EXECUTIVE COMPENSATION
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED
STOCKHOLDER MATTERS
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE
ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES
ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
ITEM 16. FORM 10–K SUMMARY

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CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This annual report contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities
Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and is subject to the safe harbor created by those
sections. All statements, other than statements of historical facts, included in this annual report, including, without limitation, statements regarding the
assumptions we make about our business and economic model, our dividend policy, business strategy and other plans and objectives for our future
operations, are forward-looking statements for purposes of federal and state securities laws.

Forward-looking statements involve risks and uncertainties, such as statements about our plans, objectives, expectations, assumptions or future events. In
some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “would,” “could,” “expects,” “plans,”
“contemplate,” “anticipates,” “believes,” “estimates,” “predicts,” “projects,” “intend” or “continue” or the negative of such terms or other comparable
terminology denoting uncertainty or an action that may, will or is expected to occur in the future, although not all forward-looking statements contain these
identifying words. Forward-looking statements are subject to inherent risks and uncertainties in predicting future results and conditions that could cause
the actual results to differ materially from those projected in these forward-looking statements. Some, but not all, examples of the forward-looking
statements contained in this annual report include, among other things, statements about the following:

● our ability to obtain regulatory approval to market and sell our product candidates in the United States, Europe and elsewhere;

● the initiation, timing, cost, progress and success of our research and development programs, preclinical studies and clinical trials for our product

candidates;

● our ability to advance product candidates into, and successfully complete, clinical trials;

● our ability to successfully commercialize the sale of our product candidates in the United States, Europe and elsewhere;

● our ability to recruit sufficient numbers of patients for our future clinical trials for our pharmaceutical products;

● our ability to achieve profitability;

● the implementation of our business model and strategic plans;

● our ability to develop and commercialize product candidates for orphan and niche indications independently;

● our commercialization, marketing and manufacturing capabilities and strategy;

● our ability to protect our intellectual property and operate our business without infringing upon the intellectual property rights of others;

● our expectations regarding federal, state and foreign regulatory requirements;

● the therapeutic benefits, effectiveness and safety of our product candidates;

● the accuracy of our estimates of the size and characteristics of the markets that may be addressed by our products and product candidates;

● the rate and degree of market acceptance and clinical utility of our future products, if any;

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● our expectations regarding market risk, including interest rate changes, foreign currency fluctuations and regional or global economic impacts

caused by public health threats, such as the outbreak of coronavirus or other infectious diseases;

● our ability to engage and retain the employees required to grow our business;

● our future financial performance and projected expenditures;

● developments relating to our competitors and our industry, including the success of competing therapies that are or become available; and

● estimates of our expenses, future revenue, capital requirements and our needs for additional financing.

The ultimate correctness of these forward-looking statements depends upon a number of known and unknown risks and events. When reviewing the
discussion below, you should keep in mind the substantial risks and uncertainties that impact our business. In particular, we encourage you to review the
risks and uncertainties described in the “Risk Factors” and the other cautionary statements made in this annual report in our other SEC filings as being
applicable to all related forward-looking statements wherever they appear in this annual report. We cannot assure you that the forward-looking statements
in this annual report will prove to be accurate and therefore you are encouraged not to place undue reliance on forward-looking statements. You should
read this annual report completely.

The forward-looking statements speak only as of the date on which they are made, and, except as required by law, we undertake no obligation to update any
forward-looking statement to reflect events or circumstances after the date on which the statement is made or to reflect the occurrence of unanticipated
events. In addition, we cannot assess the impact of each factor on our business or the extent to which any factor, or combination of factors, may cause
actual results to differ materially from those contained in any forward-looking statements. Nonetheless, we reserve the right to make such updates from
time to time by press release, periodic report, or other method of public disclosure without the need for specific reference to this Quarterly Report. No such
update shall be deemed to indicate that other statements not addressed by such update is incorrect or create an obligation to provide any other updates.

The information included in this Management’s Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction
with our audited consolidated financial statements and notes contained in this annual report.

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ITEM 1.         BUSINESS

Overview

PART I

XBiotech Inc. (“XBiotech” or the “Company”) is a biopharmaceutical company that discovers and develops True Human™ monoclonal antibodies

for treating a variety of diseases. XBiotech was incorporated in Canada on March 22, 2005. The Company’s Internet address is www.xbiotech.com. The
Company makes available free of charge on or through its website its annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form
8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as well as proxy
statements, as soon as reasonably practicable after the Company electronically files such material with, or furnishes it to, the Securities and Exchange
Commission. The Company’s website is included in this annual report on Form 10-K as an inactive textual reference only. The information on, or
accessible through, the Company’s website is not a part of, or incorporated by reference in, this annual report on Form 10-K. The SEC maintains an
Internet site that contains these reports at http://www.sec.gov.

XBiotech’s True Human™ monoclonal antibodies are derived from human donors that mount a natural human immune response. All other marketed

antibody therapeutics are derived from animal immunization. It is intuitive that naturally occurring human antibodies have the potential to be safer, more
effective and faster to develop than animal engineered counterparts. XBiotech has developed a pipeline of product candidates targeting both inflammatory
and infectious diseases. The Company has also developed manufacturing technology that reduces the cost and time to launch new product candidates. The
Company designed and built a state-of-the-art physical plant and infrastructure to discover manufacture and manage clinical trial operations for its
therapeutic antibodies at its Company’s 48 acre research campus in Austin, Texas. XBiotech is thus a fully integrated developer of biopharmaceuticals.

An area of medical focus for XBiotech are therapies that block a potent substance, known as interleukin-1 alpha (IL-1a), that mediates a number of

pathophysiological processes including tissue breakdown (ie. synovium, cartilage, bone), paraneoplastic angiogenesis and tumor stroma remodeling,
formation of blood clots, malaise, muscle wasting and general inflammation. IL-1a is a protein that is on or in cells of the body and is involved in the
body’s response to injury or trauma. In many chronic (eg. arthritis) and acute injury scenarios (eg. stroke), IL-1a may mediate harmful disease-related
activity.

At the end of 2019, XBiotech sold a True Human™ antibody therapeutic it was developing that targeted IL-1a for $1.35 billion in cash and potential

milestone payments. With the unique deal structure XBiotech agreed to not develop any anti-IL-1a antibodies for dermatology, while XBiotech remained
free to continue to discover and develop new True Human™ anti-IL-1a antibodies for use in areas of medicine outside of dermatology. The Company
quickly identified new IL-1a targeting product candidates that it is has already brought into clinical studies in oncology, rheumatology and neurology.
While the Company previously was focused on a single True Human™ antibody targeting IL-1a, it is now developing in parallel two anti-IL-1a product
candidates and may develop one or more others. Since IL-1a is involved in the pathology of multiple diseases, it makes business sense to use different anti-
IL-1a antibodies for specific areas of medicine, allowing potential partnership or sale of each antibody separately for different disease indications.

Financial

XBiotech's sale of its True Human™ antibody Bermekimab generated a total $750 million in income between December 30, 2019 and June 30, 2021.

Since 2020, the Company has returned a total of $495 million to its shareholders through a combination of stock repurchase and dividends. The remaining
cash is being used for ongoing operations as part of a multi-year business plan to identify and commercialize True Human™ antibodies, including new
anti-Il-1a therapies.

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Starting in 2020, XBiotech used its proprietary manufacturing technology, its manufacturing plant and infrastructure to produce drug product under a

supply agreement for a world-leading pharmaceutical company. In addition, during 2020 and 2021 XBiotech provided clinical trial operations services for
two Phase II clinical studies for the same drug company. In 2022 XBiotech extended the supply agreement. As of March 2024, these agreements have now
come to a successful conclusion and as of March 2024 XBiotech is no longer producing drug product or conducting contract clinical research.

Development of IL-1a Therapies

IL-1a is a substance produced by the body that plays a key role in many disease processes. While it is naturally made by the body, when not properly
controlled, and in situations of acute or chronic injury, IL-1a can contribute to the development and progression of a variety of medical conditions, such as
cancer, stroke, heart attack or arthritis, to name a few. Completed clinical studies and myriad scientific research has shown that blocking IL-1a may have a
beneficial effect in many medical conditions. The potential unmet medical need for blocking IL-1a is therefore very significant, on the scale of the anti-
TNF therapies developed over the past twenty-five years.

In 2021, the Company commenced a clinical study with its Natrunix™ True Human antibody targeting IL-1⍺ in oncology (Pancreatic Cancer). The
study is randomized, placebo controlled to provide a preliminary assessment of efficacy and safety for Natrunix in combination with chemotherapy in an
advanced cancer population. The study was sized to include 60 subjects, intended to provide a preliminary assessment of efficacy. The last subject in the
study had their last visit in February 2024. Data collection is therefore now complete. Over approximately the next six weeks, clinical monitors will
perform visitations across the United States at clinical sites that enrolled subjects into the study. During these visits monitors will review source data to
make sure all data has been properly recorded and upon satisfactory completion of the review, sites will be officially closed. When this process is complete,
the database will be locked and data analyzed according to protocol. Reporting on results for the pancreatic cancer study are expected within several weeks
of data lock.

The Company started a clinical program in Rheumatology in August, 2023 with a 210 patient study in rheumatoid arthritis. This double blind,

placebo controlled study is investigating the efficacy of Natrunix as a treatment for rheumatoid arthritis in combination with the common prescription
medication methotrexate. As of March 2024, the study has enrolled in about half of the subjects, with at least six months remaining until the last subject is
taken into the program. The study aims to demonstrate that Natrunix will not only significantly enhance treatment outcomes of subjects already taking
methotrexate, but that Natrunix will also reduce some of the side effects associated with Methotrexate. The Company is planning to launch additional
studies in rheumatology during Q2 2024.

XBiotech filed an investigational new drug application in 2022 for our True Human™ antibody Hutrukin. Hutrukin is a candidate breakthrough
therapeutic that is being evaluated for its ability to reduce brain injury that occurs after reperfusion procedures used to treat stroke. The company completed
a phase I study at the end of 2023 that demonstrated high bolus doses of Hutrukin, similar to doses that would be given to prevent brain reperfusion injury
in stroke therapy, are safe and well tolerated. Analysis of the data from the Phase I study is expected to be completed in Q1 2024. However, no significant
adverse events were noted during the study and the data analysis is expected to be positive. The Company is planning a Phase II study in stroke during
2024. Ischemic stroke which accounts for some 87% of strokes, is a leading cause of mortality and serious long-term disability worldwide. For decades the
medical approach has been to unblock the affected artery and return blood supply to the brain. It was intuitive that opening the occluded artery to return
blood supply, or “reperfuse” the ischemic brain would lead to better outcomes for stroke victims. This expectation was not in fact supported by clinical
observations.

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Clinical studies have shown that in reality, reperfusion of the affected brain is associated with ongoing irreparable damage to ischemic tissue that,

prior to reperfusion, appears viable by both physical and metabolic assessments. The necrotic infarct core that results from a stroke has been found to
increase in size upon reperfusion, seemingly as a result of the resumption of enhanced blood supply.

Hutrukin may reduce the likelihood of inflammation-related secondary injury after ischemia by disrupting the molecular pathways which activate

leukocyte migration and infiltration. Leukocyte migration and infiltration into the ischemic regions of the brain after reperfusion may mediate damage seen
after reperfusion. Clinical studies with Hutrukin will be aimed at demonstrating a reduction of reperfusion injury and improved outcomes in stroke victims.

Infectious Disease Pipeline

While market potential keeps XBiotech focused on anti-IL-1a therapies, unmet medical need and the potential for uniquely effective product
candidates keeps the Company dedicated to advancing its infectious disease pipeline. The Company has identified several major areas of urgent unmet
medical need for True Human™ anti-infective antibody therapies. Human antibodies protect all of us on a daily basis from infectious disease—and the
Company is highly confident that its True Human™ analogues of naturally immunity will serve as an extremely effective means for supplementing
infectious immunity—in compromised individuals—against numerous related infectious diseases, such as shingles, influenza and C. difficile. The
XBiotech discovery process involves procuring donations from blood banks and screening blood samples from healthy donors for antibodies that exhibit
exceptionally strong immunity to specific diseases. True Human™ antibodies are derived only from donors who we have found to have the best disease
fighting antibodies in that populations.

True Human™ antibodies may be used to provide highly potent and targeted immunity against infectious diseases, including: in the elderly, where
natural immunity is waning; in young children where immunity has yet to develop; or even in otherwise healthy individuals, where infectious agents have
overwhelmed natural immunity and where specially selected antibodies are needed to neutralize the infection (ie. staph aureus). For the latter population,
this can occur during intravenous drug use, from a deep puncture wound, or from the result of surgery, where bacteria have gained unnatural entry into a
body compartment where it can establish and evade the immune system.

The Company currently has a clinical stage therapeutic for methicillin resistant Staphylococcus aureus (MRSA), and several pre-clinical stage
therapeutics, including: an oral delivery antibody therapeutic for colon infection by C. difficile; an injectable therapy for varicella zoster (aka adult chicken
pox), the causative agent for shingles; and an influenza therapy, designed to neutralize all known strains and variants of influenza that have been identified
since the 1918 pandemic.

Infrastructure

In 2022 XBiotech completed an expansion of its manufacturing and R&D center. The expansion resulted in the creation of two new wings: one

provides state-of-the-art research laboratory for scientists; another area provides administrative space for dozens of personnel working in manufacturing,
clinical and other operations. The building additions have enhanced the Company’s ability to house a larger workforce, expand R&D activities and
orchestrate the production of multiple drug products from its existing manufacturing and R&D center.

In Q1 2024 the Company re-launched its program to construct a new multi-story 46,000 ft2 research and development facility and a 5,000 ft2
infectious disease research annex, to further enhance the Company’s discovery and product development capabilities. Both the multi-story complex and
research annex will be located on the Company’s 48 acre campus adjacent to the existing R&D center.

A Background on Therapeutic Antibodies

While antibody therapeutics have dominated drug development for the past 25 years, Kohler and Milstein probably never envisaged how difficult it
would be to isolate and produce actual human antibodies. Today, in the $247 billion antibody market — apart from XBiotech’s True  HumanTM antibodies
— there is not a single antibody therapy derived from a natural human immune response: all are mouse derived and engineered, even those antibody
therapies marketed as “human”. John Simard, founder and CEO of XBiotech, recognized the potential to deliver a new generation of True HumanTM
antibodies and founded XBiotech around the mission to develop the technology to isolate and clone individual antibodies from human blood samples.
Today, XBiotech has identified and produced numerous True HumanTM antibodies candidate therapeutics that are derived from naturally immune
individuals. XBiotech believes the greatest repository of medicines lies within the natural immune repertoire of the human body. The Company continues
to catalogue and develop these True HumanTM antibodies, which it sees as the greatest untapped resource for a new generation of therapeutics.

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Employees and Human Capital

Each member of our senior management team has been with XBiotech on average for more than 12 years, and each has been with the Company

through the process of antibody discovery, preclinical development, formulation, manufacturing, regulatory submissions, human clinical trials and
commercial sale. Our employees' collective knowledge of our business allows us to operate as among the most cost effective, efficient and capable
operations in the biotechnology industry. Our board of directors (“Board”) is constituted by individuals with significant industry, scientific and legal
knowledge. As of December 31, 2023, we had 82 full-time employees. None of our employees are represented by a collective bargaining agreement, nor
have we experienced any work stoppage. We believe that our relations with our employees are good.

We are committed to growing our business over the long term. As a result of the competitive nature of the industry in which we operate, employees

have significant career mobility and as a result, the competition for experienced employees is great. The existence of this competition, and the need for
talented and experienced employees to realize our business objectives, underlies the design and implementation of our compensation programs. At the same
time, we seek to keep our approach to compensation simple and streamlined to reflect the still relatively moderate size of our company. We have
compensation, leave and benefits programs necessary to attract and retain the talented and experienced employees necessary to develop our business
including competitive salaries, stock options awards to permanent employees, both upon initial hiring and annually thereafter, and pay annual bonuses to
permanent employees contingent on the achievement of corporate and/or personal objectives. We have developed an Employee Handbook that contains all
corporate policies and guidelines for professional behavior. Our policies and practices apply to all employees, regardless of title. These guidelines include
our Code of Business Conduct and Ethics which is posted on our website.

ITEM 1A.          RISK FACTORS

Summary

The following summarizes some of the key risks and uncertainties that could materially adversely affect us. You should read this summary together with
the more detailed description of each risk factor contained below.

Risks Related to our Business, Financial Condition and Capital Requirements

● We will incur significant losses during development of our current pipeline over the foreseeable future.

● We currently have limited opportunities to generate revenue and may never sustain profitability.

● Our future success may be dependent on the regulatory approval and commercialization of our product candidates.

● New laws or regulations could impact our ability to receive the necessary approvals to successfully market and commercialize our product

candidates.

● Product candidates we advance into clinical trials may not have favorable results in clinical trials or receive regulatory approval.

● For various reasons, we may be unable to complete clinical trials on a timely basis, incurring higher costs and delayed development timelines.

● The regulatory approval processes of the FDA and comparable foreign regulatory authorities are lengthy, time consuming and inherently

unpredictable.

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● Our product candidates may cause undesirable side effects or have other properties that could delay or prevent their regulatory approval, limit the

commercial profile of an approved label, or result in significant negative consequences prior to or following any marketing approval.

● Any product candidates that we commercialize may not receive coverage and adequate reimbursement from third-party payers.

● If we are unable to establish an effective sales force and marketing infrastructure or enter into acceptable third-party sales and marketing or

licensing arrangements, we may be unable to create optimal revenue from FDA approved products.

● Approved product candidates may not achieve adequate market acceptance for commercial success.

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

we do.

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

develop.

● Crucial components used in our manufacturing process are acquired from vendors. There are few alternate sources of these components, and

ongoing supply could be disrupted.

● We are highly dependent on our Chief Executive Officer.

● We depend on key personnel to operate our business, and we may be unable to retain, attract and integrate qualified personnel.

● Failure to comply with environmental, health and safety laws and regulations could subject us to fines, penalties or other costs.

● Our business may be disrupted by natural disasters, infrastructure interruptions, or other public health threats.

Risks Related to Intellectual Property

● We may be unable to obtain or protect certain intellectual property rights.

● Intellectual property rights do not necessarily address all potential threats to any competitive advantage we may have.

● Our technology may be found to infringe upon third-party intellectual property rights.

● We may be unable to license needed intellectual property from third parties on commercially reasonable terms or at all, including intellectual

property we in-license for manufacturing.

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

Risks Related to Owning Shares of our Common Stock

● Our share price may be volatile, which could subject us to securities class action lawsuits and prevent you from being able to sell your shares at or

above the price at which you purchased them.

● Our directors, executive officers and principal shareholders continue to have substantial control over our company and could hinder appropriate

corporate control.

● Provisions in our charter documents under Canadian law could make an acquisition of us, which may be beneficial to our shareholders, more

difficult.

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● Against the judgment of the Company, we may be considered a passive foreign investment company for US tax purposes which may negatively

affect US investors.

● We are governed by the corporate laws in British Columbia, Canada which in some cases have a different effect on shareholders than the corporate

laws in Delaware.

General Risk Factors

● Raising additional capital may cause dilution to our existing shareholders, restrict our operations or require us to relinquish rights to our

technologies or product candidates.

● Future sales, or the possibility of future sales, of a substantial number of our common stock could adversely affect the price of the shares and

dilute shareholders.

● Any inability to accurately report our financial results or prevent fraud due to a failure to maintain effective internal control over financial

reporting could cause shareholders to lose confidence in our financial and other public reporting.

Risks Related to our Business, Financial Condition and Capital Requirements

We have incurred significant losses since our inception and may incur significant losses in the future.

We are a pre-market pharmaceutical company with a limited operating history. We had no net income prior to the fourth quarter of 2019, when we

sold certain assets to Janssen Biotech, Inc. and entered into certain related commercial agreements (the “Janssen Transaction”). Investment in
pharmaceutical product development is highly speculative because it entails substantial upfront capital expenditures and significant risk that any potential
product candidate will fail to demonstrate adequate efficacy or an acceptable safety profile, gain regulatory approval or become commercially viable. We
do not have any products approved by regulatory authorities for marketing or commercial sale and have not generated any revenue from product sales to
date, and we continue to incur significant research, development and other expenses related to our ongoing operations. As a result, we incurred losses in
every reporting period from our inception in 2005 through the third quarter of 2019. Although we were profitable during the fourth quarter and fiscal year
ended December 31, 2019, due to the cash received in the Janssen Transaction, that was an extraordinary transaction outside of normal business operations
that had never previously occurred and may not be repeated. We incurred a net loss for the fiscal year ended December 31, 2023.

We expect to continue to incur significant expenses and may incur operating losses for the foreseeable future. We anticipate these expenses will
increase as we continue the research and development of and seek regulatory approvals for our current and future product candidates in various indications,
and potentially begin to commercialize any products that may achieve regulatory approval. We may encounter unforeseen expenses, difficulties,
complications, delays and other unknown factors that may adversely affect our financial condition. The amount of our future net losses will depend, in part,
on the rate of future growth of our expenses and our ability to generate revenues. Our prior losses have had, and any future losses may continue to have, an
adverse effect on our financial condition. If any of our product candidates fail in clinical trials or do not gain regulatory approval, or if approved fails to
achieve market acceptance, we may never sustain profitability.

Since inception, we have dedicated the vast majority of our resources to the discovery and development of our proprietary preclinical and clinical
product candidates, and we expect to continue to similarly expend substantial resources for the foreseeable future. These expenditures will include costs
associated with conducting research and development, manufacturing product candidates, conducting preclinical experiments and clinical trials and
obtaining and maintaining regulatory approvals, as well as commercializing any products later approved for sale. During the year ended December 31,
2023, we recognized approximately $32.8 million in expenses associated with research and development.

We completed our initial public offering on April 15, 2015 and additional registered offerings in March 2017 and May 2019. We also received a

significant amount of cash proceeds from the sale of Bermekimab. However, the net proceeds from these transactions and cash on hand may not be
sufficient to complete clinical development of any of our product candidates nor may it be sufficient to commercialize any product candidate. In addition,
we completed a modified Dutch auction tender offer for our common shares in February 2020 and June 2023, which consumed $420 million and $14
thousand of our cash resources, respectively. We also distributed $75 million cash dividend to our investors in July 2021. Accordingly, we may require
substantial additional capital to continue our clinical development and potential commercialization activities. Our future capital requirements depend on
many factors, including but not limited to:

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the number of future product candidates we pursue;

the scope, progress, results and costs of researching and developing any of our future product candidates, and conducting preclinical research and
clinical trials;

the timing of, and the costs involved in, obtaining regulatory approvals for any future product candidates we develop;

the cost of future commercialization activities for our product candidates and the cost of commercializing any future products approved for sale;

the cost of manufacturing our future products; and

the costs involved in preparing, filing, prosecuting, maintaining, defending and enforcing patents, including litigation costs and the outcome of any
such litigation.

We are unable to accurately estimate the funds we will actually require to complete research and development of our product candidates or the funds
required to commercialize any resulting product in the future or the funds that will be required to meet other expenses. Our operating plan may change as a
result of many factors currently unknown to us, and our expenses may be higher than expected. Raising funds in the future may present additional
challenges and future financing may not be available in sufficient amounts or on terms acceptable to us, if at all.

We currently have no source of product revenue and may never sustain profitability.

To date, we have not generated any revenue from commercial product sales. Our ability to generate revenue in the future from product sales and
achieve profitability will depend upon our ability, alone or with any future collaborators, to commercialize products successfully, including any current
product candidates or any product candidates that we may develop, in-license or acquire in the future. Even if we are able to achieve regulatory approval
for any current or future product candidates, we do not know when any of these products will generate revenue from product sales, if at all. Our ability to
generate revenue from product sales from any of our product candidates also depends on a number of additional factors, including our ability to:

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complete development activities, including the necessary clinical trials;

complete and submit new drug applications, or NDAs, to the US Food and Drug Administration, or FDA, and obtain regulatory approval for
indications for which there is a commercial market;

complete and submit applications to, and obtain regulatory approval from, foreign regulatory authorities such as the European Medicines Agency, or
EMA;

establish our manufacturing operations;

develop a commercial organization capable of sales, marketing and distribution for our product candidates and any products for which we obtain
marketing approval and intend to sell ourselves in the markets in which we choose to commercialize on our own;

find suitable distribution partners to help us market, sell and distribute our approved products in other markets;

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obtain coverage and adequate reimbursement from third-party payers, including government and private payers;

achieve market acceptance for our products, if any;

establish, maintain and protect our intellectual property rights; and

attract, hire and retain qualified personnel.

In addition, because of the numerous risks and uncertainties associated with pharmaceutical product development, including that our product
candidates may not advance through development or achieve the endpoints of applicable clinical trials, we are unable to predict the timing or amount of
increased expenses, or if we will be able to sustain profitability. In addition, our expenses could increase beyond expectations if we decide to or are
required by the FDA, or foreign regulatory authorities, to perform studies or trials in addition to those that we currently anticipate. Even if we are able to
complete the development and regulatory process for our product candidates, we anticipate incurring significant costs associated with commercializing
these products.

Even if we are able to generate revenues from the sale of any of our product candidates that may be approved, we may not become profitable and

may need to obtain additional funding to continue operations. If we are unable to sustain profitability on a continuing basis, then we may be unable to
continue our operations at planned levels and be forced to reduce our operations.

Our future success is dependent on the regulatory approval and commercialization of our product candidates.

We do not have any products that have gained regulatory approval. As a result, our ability to finance our operations and generate revenue, are
substantially dependent on our ability to obtain regulatory approval for, and, if approved, to successfully commercialize our product candidates in a timely
manner. We cannot commercialize our other product candidates in the U.S. without first obtaining regulatory approval for each product from the FDA;
similarly, we cannot commercialize any product candidates outside of the U.S. without obtaining regulatory approval from comparable foreign regulatory
authorities, including the EMA. The FDA review process typically takes years to complete and approval is never guaranteed. Before obtaining regulatory
approvals for the commercial sale of any of our potential product candidates for a target indication, we must demonstrate with substantial evidence
gathered in preclinical and well-controlled clinical studies, including two well-controlled Phase III studies, and, with respect to approval in the U.S. to the
satisfaction of the FDA, and in Europe, to the satisfaction of the EMA, that the product candidate is safe and effective for use for that target indication; and
that the manufacturing facilities, processes and controls are adequate. Obtaining regulatory approval for marketing of our current or future product
candidates in one country does not ensure we will be able to obtain regulatory approval in other countries. A failure or delay in obtaining regulatory
approval in one country may have a negative effect on the regulatory process in other countries.

Even if any of our product candidates were to successfully obtain approval from the FDA or comparable foreign regulatory authorities, any approval

might contain significant limitations related to use restrictions for specified age groups, warnings, precautions or contraindications, or may be subject to
burdensome post-approval studies or risk management requirements. If we are unable to obtain regulatory approval for our product candidates in one or
more jurisdictions, or any approval contains significant limitations, we may not be able to obtain sufficient funding or generate sufficient revenue to
continue the development of any of our other product candidates that we are developing or may discover, in-license, develop or acquire in the future. Also,
any regulatory approval of our product candidates, once obtained, may be withdrawn. Furthermore, even if we obtain regulatory approval for any of our
product candidates, their commercial success will depend on a number of factors, including the following:

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development of a commercial organization within XBiotech or establishment of a commercial collaboration with a commercial infrastructure;

establishment of commercially viable pricing and obtaining approval for adequate reimbursement from third-party and government payers;

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our ability to manufacture quantities of our product candidates using commercially satisfactory processes and at a scale sufficient to meet anticipated
demand and enable us to reduce our cost of manufacturing;

our success in educating physicians and patients about the benefits, administration and use of our product candidates;

the availability, perceived advantages, relative cost, relative safety and relative efficacy of alternative and competing treatments;

the effectiveness of our own or our potential strategic collaborators’ marketing, sales and distribution strategy and operations;

acceptance as a safe and effective therapy by patients and the medical community; and

a continued acceptable safety profile following approval.

Many of these factors are beyond our control. If we are unable to successfully commercialize our product candidates, we may not be able to earn

sufficient revenues to continue our business.

New laws or regulations may be promulgated or modified in the United States, in Europe, or other jurisdictions that could impact our ability to receive
the necessary approvals to successfully market and commercialize our product candidates.

The pharmaceutical and biotechnology industry is one of the most regulated on a state, federal and international level. There are a number of laws,

regulations, and court decisions which impact the daily activities of our business. As a result, we must ensure that strategies and planning in relation to our
product candidates are in line with the current regulations governing our industry. When there are changes in leadership, whether within the U.S., or
elsewhere, we must anticipate the possibility of shifts in regulatory policies as they pertain to our business. New or modified regulations may impact our
ability to quickly respond with updates to our programs. While we may be able to anticipate certain changes, policy statements often are not always
translated into actionable legislation. We continue to track updates and changes internally to ensure we are in compliance with regulatory authority
guidelines and expectations. Court decisions at both the state and federal level can also impact the way in which we operate and make specific product
related program decisions. New laws, regulations, or court orders could materially alter or impact our ability to receive necessary approvals from regulatory
authorities to market and commercialize our product candidates.

Because the results of earlier clinical trials are not necessarily predictive of future results, product candidates we advance into clinical trials, may not
have favorable results in later clinical trials or receive regulatory approval.

Success in preclinical testing and early clinical trials does not ensure that later clinical trials will generate adequate data to demonstrate the efficacy
and safety of an investigational drug. A number of companies in the pharmaceutical and biotechnology industries, including those with greater resources
and experience, have suffered significant setbacks in clinical trials, even after seeing promising results in earlier clinical trials. We do not know whether the
clinical trials we are conducting, or may conduct, will demonstrate adequate efficacy and safety to result in regulatory approval to market any of our
product candidates in any particular jurisdiction. Even if we believe that we have adequate data to support an application for regulatory approval to market
our product candidates, the FDA or other comparable foreign regulatory authorities may not agree and could require us to conduct additional research
studies, including late-stage clinical trials. If late-stage clinical trials do not produce favorable results, our ability to achieve regulatory approval for any of
our product candidates may be adversely impacted.

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If we are unable to enroll subjects in clinical trials, we will be unable to complete these trials on a timely basis.

Patient enrollment, a significant factor in the timing of clinical trials, is affected by many factors including the size and nature of the patient

population, the proximity of subjects to clinical sites, the eligibility criteria for the trial, the design of the clinical trial, ability to obtain and maintain patient
consents, risk that enrolled subjects will drop out before completion, competing clinical trials and clinicians’ and patients’ perceptions as to the potential
advantages of the drug being studied in relation to other available therapies, including any new drugs that may be approved for the indications we are
investigating. Furthermore, we rely on clinical trial sites to ensure the proper and timely conduct of our clinical trials, and while we have agreements
governing their committed activities, we have limited influence over their actual, day-to-day performance. We may experience delays in starting-up clinical
trial sites in a timely manner, enrolling subjects in our trials, and may not be able to enroll a sufficient number of subjects to complete the trials.

If we experience delays in the completion or if there is termination of, any clinical trial of any current or future product candidates, the commercial
prospects of our product candidates will be harmed, and our ability to generate product revenues from any of these product candidates will be delayed. In
addition, any delays in completing our clinical trials will increase our costs, slow down our product candidate development and approval process and could
shorten any periods during which we may have the exclusive right to commercialize our product candidates or allow our competitors to bring products to
market before we do, and jeopardize our ability to commence product sales, which would impair our ability to generate revenues and may harm our
business, results of operations, financial condition and cash flows and future prospects. In addition, many of the factors that could cause a delay in the
commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product candidates.

The regulatory approval processes of the FDA and comparable foreign regulatory authorities are lengthy, time consuming and inherently
unpredictable, and if we are ultimately unable to obtain regulatory approval for our product candidates, our business may fail.

The time required to obtain approval by the FDA and comparable foreign regulatory authorities is unpredictable, but typically takes several years

following the commencement of preclinical studies and clinical trials and depends upon numerous factors, including the substantial discretion of the
regulatory authorities and any shifts in regulatory policy. In addition, approval policies, regulations, or the type and amount of clinical data necessary to
gain approval may change during the course of a product candidate’s clinical development and may vary among jurisdictions. We have not obtained
regulatory approval for any product candidate, and it is possible that none of the product candidates we are developing or may discover, in-license or
acquire and seek to develop in the future will ever obtain regulatory approval.

Our product candidates could fail to receive marketing approval from the FDA or a comparable foreign regulatory authority for many reasons,

including but not limited to:

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disagreement over the design or implementation of our clinical trials;

failure to demonstrate that a product candidate is safe and effective;

failure of clinical trials to meet the level of statistical significance required for approval;

failure to demonstrate that a product candidate’s clinical and other benefits outweigh its safety risks;

disagreement over our interpretation of data from preclinical studies or clinical trials;

disagreement over whether to accept efficacy results from clinical trial sites outside the United States where the standard of care is potentially
different from that in the United States;

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the insufficiency of data collected from clinical trials of our product candidates to support the submission and filing of an NDA or other submission
or to obtain regulatory approval;

irreparable or critical compliance issues relating to our manufacturing and/clinical trial processes; or

changes in the approval policies or regulations that render our preclinical and clinical data insufficient for approval.

The FDA or a comparable foreign regulatory authority may require more information, including additional preclinical or clinical data to support
approval, which may delay or prevent approval and our commercialization plans, or we may decide to abandon the development program altogether. Even
if we do obtain regulatory approval, our product candidates may be approved for fewer or more limited indications than we request, approved contingent on
the performance of costly post-marketing clinical trials, or approved with a label that does not include the labeling claims necessary or desirable for the
successful commercialization of that product candidate. In addition, if any of our product candidates produce undesirable side effects or safety issues, the
FDA may require the establishment of Risk Evaluation Mitigation Strategies, or REMS, or a comparable foreign regulatory authority may require the
establishment of a similar strategy, that may, restrict distribution of our products and impose burdensome implementation requirements. Any of the
foregoing scenarios could materially harm the commercial prospects for our product candidates.

Even if we believe any completed, current or planned clinical trials are successful, the FDA or a comparable foreign regulatory authority may not
agree that our completed clinical trials provide adequate data on the safety or efficacy of our product candidates, permitting us to proceed to additional
clinical trials. Approval by comparable foreign regulatory authorities does not ensure approval by the FDA and approval by one or more foreign regulatory
authorities does not ensure approval by regulatory authorities in other countries or by the FDA. However, a failure or delay in obtaining regulatory approval
in one country may have a negative impact on the regulatory process in others. We may not be able to file for regulatory approvals, and even if we file, we
may not receive the necessary approvals to commercialize our products in any market.

Our product candidates may cause undesirable side effects or have other properties that could delay or prevent their regulatory approval, limit the
commercial profile of an approved label, or result in significant negative consequences following any marketing approval.

Undesirable side effects caused by our product candidates could cause us or regulatory authorities to interrupt, delay or halt clinical trials and could

result in a more restrictive label or the delay or denial of regulatory approval by the FDA or other comparable foreign regulatory authority. If toxicities
occur in our current or future clinical trials they could cause delay or even the discontinuation of further development of our product candidates, which
would impair our ability to generate revenues and would have a material adverse effect our business, results of operations, financial condition and cash
flows and future prospects. There can be no assurance that side effects from our product candidates in future clinical trials or that side effects in general will
not prompt the discontinued development or possible market approval of our product candidates. If serious side effects or other safety or toxicity issues are
experienced in our clinical trials in the future, we may not receive approval to market any of our product candidates, which could prevent us from ever
generating revenues from commercial product sales or sustaining profitability. Results of our trials could reveal an unacceptably high severity and
prevalence of side effects. In such an event, our trials could be suspended or terminated and the FDA or comparable foreign regulatory authorities could
order us to cease further development of or deny approval of our product candidates for any or all targeted indications. The drug-related side effects could
affect patient recruitment or the ability of enrolled subjects to complete the trial or result in potential product liability claims. Any of these occurrences may
have a material adverse effect on our business, results of operations, financial condition and cash flows and future prospects.

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Additionally, if any of our product candidates receives marketing approval, and we or others later identify undesirable side effects caused by such

product, a number of potentially significant negative consequences could result, including:

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we may be forced to suspend marketing of such product;

regulatory authorities may withdraw their approvals of such product;

regulatory authorities may require additional warnings on the label that could diminish the usage or otherwise limit the commercial success of such
product;

the FDA or other regulatory bodies may issue safety alerts, Dear Healthcare Provider letters, press releases or other communications containing
warnings about such product;

the FDA may require the establishment or modification of REMS or a comparable foreign regulatory authority may require the establishment or
modification of a similar strategy that may, for instance, restrict distribution of our product and impose burdensome implementation requirements on
us;

we may be required to change the way the product is administered or conduct additional clinical trials;

we could be sued and held liable for harm caused to subjects or patients;

we may be subject to litigation or product liability claims; and

our reputation may suffer.

Any of these events could prevent us from achieving or maintaining market acceptance of the particular product candidate, if approved.

Even if our product candidates receive regulatory approval, they may still face future challenges, including ongoing regulatory oversight and
marketing challenges.

Even if we obtain regulatory approval for any of our product candidates, it would be subject to ongoing requirements by the FDA and comparable

foreign regulatory authorities governing the manufacture, quality control, further development, labeling, packaging, storage, distribution, safety
surveillance, import, export, advertising, promotion, recordkeeping and reporting of safety and other post-market information. The safety profile of any
product will continue to be closely monitored by the FDA and comparable foreign regulatory authorities after approval. If the FDA or comparable foreign
regulatory authorities become aware of new safety information after approval of any product candidate, they may require labeling changes or establishment
of a REMS or similar strategy, impose significant restrictions on a product’s indicated uses or marketing, or impose ongoing requirements for potentially
costly post-approval studies or post-market surveillance. For example, the label ultimately approved for any product candidate, if it achieves marketing
approval, may include restrictions on use.

In addition, manufacturers of drug products and their facilities are subject to continual review and periodic inspections by the FDA and other
regulatory authorities for compliance with current good manufacturing practices, or cGMP, and other regulations. If we or a regulatory agency discover
previously unknown problems with a product, such as adverse events of unanticipated severity or frequency, or problems with the facility where the
product is manufactured, a regulatory agency may impose restrictions on that product, our manufacturing facility, including requiring recall or withdrawal
of the product from the market or suspension of manufacturing. If we, our product candidates or our manufacturing facilities for our product candidates fail
to comply with applicable regulatory requirements, a regulatory agency may:

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issue warning letters or untitled letters;

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impose restrictions on the marketing or manufacturing of the product candidates;

mandate modifications to promotional materials or require us to provide corrective information to healthcare practitioners;

require us or any future collaborator to enter into a consent decree, which can include imposition of various fines, reimbursements for inspection
costs, required due dates for specific actions and penalties for noncompliance;

seek an injunction or impose civil or criminal penalties or monetary fines;

suspend or withdraw regulatory approval;

suspend any ongoing clinical trials;

refuse to approve pending applications or supplements to applications filed by us;

suspend or impose restrictions on operations, including costly new manufacturing requirements; or

seize or detain products, refuse to permit the import or export of products, or require us to initiate a product recall.

The occurrence of any event or penalty described above may inhibit our ability to commercialize our product candidates and generate revenue.

The FDA strictly regulates the advertising and promotion of drug products, and drug products may only be marketed or promoted for their FDA
approved uses, consistent with the product’s approved labeling. Advertising and promotion of any product candidate that obtains approval in the U.S., and
is covered by federal insurance programs such as Medicare or Medicaid, will be heavily scrutinized by the FDA, the Department of Justice, (DOJ), the
Office of Inspector General of the Department of Health and Human Services, (HHS), state attorneys general, members of Congress and the public.
Violations, including promotion of our products for unapproved or off-label uses, are subject to enforcement letters, inquiries and investigations, and civil,
criminal and/or administrative sanctions by the FDA and/or the DOJ. Additionally, advertising and promotion of, any product candidate that obtains
approval outside of the U.S. will be heavily scrutinized by comparable foreign regulatory authorities.

In the U.S., engaging in impermissible promotion of our future products for off-label uses can also subject us to false claims litigation under federal
and state statutes, which can lead to civil, criminal and/or administrative penalties and fines and corporate integrity agreements that materially restrict the
manner in which we promote or distribute our drug products. The federal False Claims Act, allows any individual to bring a lawsuit against a
pharmaceutical company on behalf of the federal government alleging submission of false or fraudulent claims, or causing to present such false or
fraudulent claims, for payment by a federal program, such as Medicare or Medicaid. If the government prevails in the lawsuit, the individual may share in
any fines or settlement funds. Since 2004, False Claims Act lawsuits against pharmaceutical companies have increased significantly in volume and breadth,
leading to several substantial civil and criminal settlements based on certain sales practices promoting off-label drug uses. This growth in litigation has
increased the risk that a pharmaceutical company will have to defend a false claims action, pay settlement fines or restitution, agree to comply with
burdensome reporting and compliance obligations, and be excluded from Medicare, Medicaid and other federal and state healthcare programs. If we do not
lawfully promote our approved products, we may become subject to such litigation and, if we are not successful in defending against such actions, those
actions could have a material adverse effect on our business, results of operations, financial condition and cash flows and future prospects.

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Existing government regulations may change and additional government regulations may be enacted that could prevent, limit or delay regulatory

approval of our product candidates. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies,
or if we are not able to maintain regulatory compliance, we may lose any marketing approval that we may have obtained and/or be subject to fines or
enhanced government oversight and reporting obligations, which would adversely affect our business, prospects and ability to sustain profitability.

Failure to obtain regulatory approval in foreign jurisdictions would prevent our product candidates from being marketed in those jurisdictions.

In order to market and sell our products in the European Union and many other jurisdictions, we must obtain separate marketing approvals and
comply with numerous and varying regulatory requirements. The approval procedure varies among countries and can involve additional testing. The time
required to obtain approval may differ substantially from that required to obtain FDA approval. The regulatory approval process outside the U.S. generally
includes all of the risks associated with obtaining FDA approval. Additionally, in many countries outside the U.S., it is required that the product be
approved for reimbursement before the product can be effectively commercialized in that country. Obtaining foreign regulatory approvals and compliance
with foreign regulatory requirements could result in significant delays, difficulties and costs for us and could delay or prevent the introduction of our
products in certain countries. We may not obtain approvals from regulatory authorities outside the U.S. on a timely basis, if at all. Approval by the FDA
does not ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one regulatory authority outside the U.S. does not
ensure approval by regulatory authorities in other countries or jurisdictions or by the FDA. A failure or delay in obtaining regulatory approval in one
country may have a negative effect on the regulatory approval process in others. We may not be able to file for marketing approvals and may not receive
necessary approvals to commercialize our products in any market. If we are unable to obtain approval of any of our product candidates by regulatory
authorities in the European Union or another jurisdiction, the commercial prospects of that product candidate may be significantly diminished and our
business prospects could decline.

Even if we are able to commercialize our product candidates, the products may not receive coverage and adequate reimbursement from third-party
payers, which could harm our business.

Our ability to commercialize any products successfully will depend, in part, on the extent to which coverage and adequate reimbursement for these

products and related treatments will be available from government authorities, private health insurers, health maintenance organizations and third-party
payers. Patients who are prescribed medications for the treatment of their conditions generally rely on third-party payers to reimburse all or part of the costs
associated with their prescription drugs. Coverage and adequate reimbursement from government healthcare programs, such as Medicare and Medicaid,
and private health insurers are critical to new product acceptance. Patients are unlikely to use our product candidates unless coverage is provided and
reimbursement is adequate to cover a significant portion of the cost of our product candidates. A primary trend in the US healthcare industry and elsewhere
is cost containment. As a result, government authorities and other third-party payers have attempted to control costs by limiting coverage and the amount of
reimbursement for particular medications. Increasingly, third-party payers are requiring that drug companies provide them with predetermined discounts
from list prices and are challenging the prices charged for medical products. Third-party payers may also seek additional clinical evidence, beyond the data
required to obtain marketing approval, demonstrating clinical benefits and value in specific patient populations before covering our products for those
patients. We cannot be sure that coverage and adequate reimbursement will be available for any product that we commercialize and, if reimbursement is
available, what the level of reimbursement will be. Coverage and reimbursement may impact the demand for, or the price of, any product candidate for
which we obtain marketing approval. If coverage and reimbursement are not available or are available only at limited levels, we may not be able to
successfully commercialize any product candidate for which we obtain marketing approval.

There may be significant delays in obtaining coverage and reimbursement for newly approved drugs, and coverage may be more limited than the

purposes for which the drug is approved by the FDA or comparable foreign regulatory authorities. Moreover, obtaining coverage does not imply that any
drug will be paid for in all cases or at a rate that covers our costs, including research, development, manufacture, sales and distribution. Interim
reimbursement levels for new drugs, if applicable, may also be insufficient to cover our costs, and may only be temporary. Reimbursement rates may vary
according to the use of the drug and the clinical setting in which it is used. Reimbursement rates may also be based in part on existing reimbursement
amounts for lower cost drugs or may be bundled into the payments for other services. Net prices for drugs may be reduced by mandatory discounts or
rebates required by government healthcare programs or private payers and by any future relaxation of laws that presently restrict imports of drugs from
countries where they may be sold at lower prices than in the U.S. Coverage and reimbursement for drug products can differ significantly from payer to
payer. As a result, the coverage and reimbursement determination process is often a time-consuming and costly process with no assurance that coverage
and adequate reimbursement will be obtained or applied consistently. Third-party payers often rely upon Medicare coverage policy and payment limitations
in setting their own coverage and reimbursement policies. Our inability to promptly obtain coverage and profitable reimbursement rates from both
government-funded and private payers for any approved products that we develop could have a material adverse effect on our operating results, our ability
to raise capital needed to commercialize products, and our overall financial condition.

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We have never marketed a drug before, and if we are unable to establish an effective sales force and marketing infrastructure, or enter into acceptable
third-party sales and marketing or licensing arrangements, we may be unable to generate any revenue.

We do not currently have a comprehensive infrastructure for the sales, marketing and distribution of pharmaceutical drug products. The cost of
establishing and maintaining such an infrastructure may exceed the cost-effectiveness of doing so. In order to market any products that may be approved by
the FDA and comparable foreign regulatory authorities, we must build our sales, marketing, managerial and other non-technical capabilities or make
arrangements with third parties to perform these services for which we would incur substantial costs. If we are unable to establish adequate sales, marketing
and distribution capabilities, whether independently or with third parties, we may not be able to generate product revenue and may not sustain profitability.
We will be competing with many companies that have extensive and well-funded sales and marketing operations. Without an internal commercial
organization or the support of a third party to perform sales and marketing functions, or a combination of both, we may be unable to compete successfully
against more established companies.

Our product candidates, if approved, may not achieve adequate market acceptance among physicians, patients, and healthcare payers and others in the
medical community necessary for commercial success.

Even if we obtain regulatory approval for any of our product candidates, such product(s) may not gain market acceptance among physicians,
healthcare payers, patients or the medical community within the U.S. or globally. Our commercial success also depends on coverage and adequate
reimbursement of our product candidates by third-party payers, including government payers, generally, which may be difficult or time-consuming to
obtain, may be limited in scope and may not be obtained in all jurisdictions in which we may seek to market our products. Market acceptance of any of our
product candidates for which we receive approval depends on a number of factors, including:

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the efficacy and safety of such product candidates as demonstrated in clinical trials;

the clinical indications for which the product candidate is approved;

acceptance by physicians and patients of the product candidate as a safe and effective treatment;

the potential and perceived advantages of product candidates over alternative treatments;

the safety of product candidates seen in a broader patient group, including a product candidate’s use outside the approved indications;

the prevalence and severity of any side effects;

product labeling or product insert requirements of the FDA or other regulatory authorities;

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the timing of market introduction of our products as well as competitive products;

the cost of treatment in relation to alternative treatments;

the availability of coverage and adequate reimbursement and pricing by third-party payers and government authorities;

relative convenience and ease of administration;

the effectiveness of our sales and marketing efforts and those of our collaborators; and

unfavorable publicity relating to the product candidate or the Company.

If any of our product candidates are approved but fail to achieve market acceptance among physicians, patients, or healthcare payers, we will not be

able to generate significant revenues, which would compromise our ability to sustain profitability.

Our research programs may not succeed.

XBiotech has positioned itself with a pipeline of potential drug candidates at various stages of development. Even though we have multiple drugs in
development at this time, none of these research programs may succeed. There are several reasons why a drug program may fail, including the following:

● In the development stage, we may be unable to develop a therapy, which would mean us succeeding in isolating appropriate antibodies to reach the

clinical trial stage;

  ● Any partnerships for the development of antibodies could fail to produce results that would necessitate clinical trials;

  ● We may not receive approval from regulatory bodies to move from early stage clinical trials to later stage clinical trials;

 ● Even if we are able to move to later stage clinical trials, it may prove to be difficult to enroll patients into the studies according to schedule, or at all;

● During the clinical trial, there could be unexpected serious adverse events causing severe injury or death in patients, requiring us to cease further

enrollment or causing regulatory authorities to place the trial on clinical hold for an indefinite period of time;

● If a clinical trial is completed, we may not have the appropriate personnel to submit a marketing application to regulatory authorities for approval, and

to further respond to the variety of follow up questions that regulatory authorities may have during the review process;

● Regulatory authorities may reject drug candidates for a variety of reasons, preventing us from proceeding with marketing and commercialization of

approved products; and

  ● We may run out of the funds necessary to complete development for any of our potential drug candidates.

Even an effective drug candidate might not be commercially successful.

Even if we ultimately succeed in creating a safe and effective drug, as determined by regulatory authorities, based on our current product pipeline,

there is no assurance it would be commercially successful. Competitive products might become available faster or with lower costs or adverse risks to
patients, resulting in few sales of any product developed by XBiotech. Occurrences of certain disease indications, such as those in our pipeline, might
become sufficiently rare, or victims might be sufficiently impoverished, that commercial production is uneconomic. Furthermore, we must have sufficient
buy-in from patients and healthcare professionals to guarantee market exposure for our drug candidates. If the end-users are not reached with our products,
then it will be difficult to generate revenue from our development efforts. And even though we could obtain regulatory approval for any of our drug
candidates, it is not necessarily the case that government or third-party payers will decide to add our products to their respective prescription drug
formularies for reimbursement, thus inhibiting the ability for our drug candidates to reach the target patient populations, and health care professionals
serving those patients.

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

The development and commercialization of new drug products is highly competitive. We face competition with respect to our current or future
product candidates to treat any relevant indication(s). There are a number of large pharmaceutical and biotechnology companies that currently market and
sell products or are pursuing the development of products for the treatment of the disease indications for which we are developing our future product
candidates. Some of these competitive products and therapies are based on scientific approaches that are the same as or similar to our approach, and others
are based on entirely different approaches. Potential competitors include academic institutions, government agencies and other public and private research
organizations that conduct research, seek patent protection and establish collaborative arrangements for research, development, manufacturing and
commercialization.

More established companies may have a competitive advantage over us due to their greater size, cash flows and institutional experience. Compared
to us, many of our competitors may have significantly greater financial, technical and human resources. As a result of these factors, our competitors may
obtain regulatory approval of their products before we do, which will limit our ability to develop or commercialize any of our product candidates. In
addition, many companies are developing new therapeutics to supplant or expand upon the standard of care for a number of diseases, as a result, we cannot
predict what the standard of care will be as our product candidates progress through clinical development.

Our failure to successfully identify, acquire, develop and commercialize additional product candidates or approved products could impair our ability to
grow.

Although a substantial amount of our efforts will focus on the continued clinical testing and potential approval of our current product candidates, a

key element of our growth strategy is to acquire, develop and/or market additional products and product candidates. All of these potential product
candidates remain in the discovery and clinical study stages. Research programs to identify product candidates require substantial technical, financial and
human resources, whether or not any product candidates are ultimately identified. Because our internal research capabilities are limited, we may be
dependent upon pharmaceutical and biotechnology companies, academic scientists and other researchers to sell or license products or technology to us. The
success of this strategy depends partly upon our ability to identify, select and acquire promising pharmaceutical product candidates and products. The
process of proposing, negotiating and implementing a license or acquisition of a product candidate or approved product is lengthy and complex. Other
companies, including some with substantially greater financial, marketing and sales resources, may compete with us for the license or acquisition of
product candidates and approved products. We have limited resources to identify and execute the acquisition or in-licensing of third-party products,
businesses and technologies and integrate them into our current infrastructure. Moreover, we may devote resources to potential acquisitions or in-licensing
opportunities that are never completed, or we may fail to realize the anticipated benefits of such efforts. Any product candidate that we acquire may require
additional development efforts prior to commercial sale, including extensive clinical testing and approval by the FDA and applicable foreign regulatory
authorities. All product candidates are prone to risks of failure typical of pharmaceutical product development, including the possibility that a product
candidate will not be shown to be sufficiently safe and effective for approval by regulatory authorities. In addition, we cannot provide assurance that any
products that we develop or approved products that we acquire will be manufactured profitably or achieve market acceptance.

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

We face an inherent risk of product liability exposure related to the testing of our product candidates in clinical trials and will face an even greater

risk if we commercially sell any products that we may develop. Product liability claims may be brought against us by subjects enrolled in our clinical trials,
patients, healthcare providers or others using, administering or selling our products. If we cannot successfully defend ourselves against claims that our
product candidates or products caused injuries, we could incur substantial liabilities. Regardless of merit or eventual outcome, liability claims may result
in:

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

termination of clinical trial sites or entire clinical trial programs;

injury to our reputation and significant negative media attention;

withdrawal of clinical trial participants;

significant costs to defend the related litigation;

substantial monetary awards to clinical trial subjects or patients;

loss of revenue;

diversion of management and scientific resources from our business operations; and

the inability to commercialize our product candidates.

We will obtain insurance coverage for products to include the sale of commercial products if we obtain marketing approval for our product

candidates, but we may be unable to obtain commercially reasonable product liability insurance for any products approved for marketing. Large judgments
have been awarded in class action lawsuits based on drugs that had unanticipated side effects. A successful product liability claim or series of claims
brought against us, particularly if judgments exceed our insurance coverage, could decrease our cash and adversely affect our business.

We will need to expand our operations and grow the size of our organization in the future, and we may experience difficulties in managing this growth.

As of December 31, 2023, we had 82 employees. As our development and commercialization plans and strategies develop, or as a result of any future

acquisitions, we will need additional managerial, operational, sales, marketing, scientific, and financial headcount and other resources. Our management,
personnel and systems currently in place may not be adequate to support this future growth. Future growth would impose significant added responsibilities
on members of management, including:

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managing our clinical trials effectively, which we anticipate potentially being conducted at numerous clinical sites on a global scale;

identifying, recruiting, maintaining, motivating and integrating additional employees with the expertise and experience we will require;

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

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managing additional relationships with various strategic partners, suppliers and other third parties;

improving our managerial, development, operational and finance reporting systems and procedures; and

expanding our facilities.

Our failure to accomplish any of these tasks could prevent us from successfully growing our Company.

We may never achieve any of the potential milestone payments that were negotiated as a part of the Janssen Transaction.

As part of the Janssen Transaction, we are eligible to receive milestone payments of $150 million for each instance that Janssen, in its sole and

absolute discretion, develops pharmaceutical products that contain Bermekimab and that are for non-dermatological indications, provided that Janssen
receives certain required commercial authorizations for such products within a specified timeframe. We are entitled to earn up to four milestone payments,
for a maximum of $600 million. However, because the payment of these funds is subject to Janssen’s business decisions and discretion, as well as
regulatory approvals and other factors outside our control, we may never receive any of these amounts. If we do not receive all or any of the milestone
payments, we may be required to seek additional funding from other sources, which may not be available on terms acceptable to us or at all.

We are highly dependent on our Chief Executive Officer.

Our future success depends in significant part on the continued service of our Chief Executive Officer, John Simard. Mr. Simard is critical to the
strategic direction and overall management of our company as well as our research and development process. Although we have an employment agreement
with Mr. Simard, it has no specific duration. The loss of Mr. Simard could adversely affect our business, financial condition and operating results.

We depend on key personnel to operate our business. If we are unable to retain, attract and integrate qualified personnel, our ability to develop and
successfully grow our business could be harmed.

In addition to the continued services of Mr. Simard, we believe that our future success is highly dependent on the contributions of our significant
employees, as well as our ability to attract and retain highly skilled and experienced sales, research and development and other personnel in the United
States and abroad. Some of our significant employees include our Chief Scientific Officer, our Vice President of Quality Assurance, our Vice President of
Quality Control, our Principal Financial Officer and Principal Accounting Officer. Changes in our management team may be disruptive to our business.

All of our employees, including our Chief Executive Officer, are free to terminate their employment relationship with us at any time, subject to any

applicable notice requirements, and their knowledge of our business and industry may be difficult to replace. If one or more of our executive officers or
significant employees leaves, we may not be able to fully integrate new personnel or replicate the prior working relationships, and our operations could
suffer. Qualified individuals with the breadth of skills and experience in the pharmaceutical industry that we require are in high demand, and we may incur
significant costs to attract them. Many of the other pharmaceutical companies that we compete against for qualified personnel have greater financial and
other resources, different risk profiles and a longer history in the industry than we do. They also may provide more diverse opportunities and better chances
for career advancement. Our failure to attract and retain key personnel could impede the achievement of our research, development and commercialization
objectives.

If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could
have a material adverse effect on the success of our business.

We are subject to numerous environmental, health and safety laws and regulations in the U.S. and elsewhere, including, as a result of our leased
laboratory space, those governing laboratory procedures and the handling, use, storage, treatment and disposal of hazardous materials and wastes. Our
operations involve the use of hazardous and flammable materials, including chemicals and biological materials. Our operations also produce hazardous
waste products. We generally contract with third parties for the disposal of these materials and wastes.

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We cannot eliminate the risk of contamination or injury from these materials. In the event of contamination or injury resulting from our use of
hazardous materials, we could be held liable for any resulting damages, and any liability could exceed our resources. We also could incur significant costs
associated with civil or criminal fines and penalties.

Although we maintain insurance for employee injury to cover us for costs and expenses, we may incur due to injuries to our employees resulting

from the use of hazardous materials, this insurance may not provide adequate coverage against potential liabilities. We do not maintain insurance for
environmental liability or toxic tort claims that may be asserted against us in connection with our storage or disposal of biological or hazardous materials.
In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws and regulations. These current or
future laws and regulations may impair our research, development or production efforts. Failure to comply with these laws and regulations may also result
in substantial fines, penalties or other sanctions.

Business disruptions caused by natural disasters, infrastructure interruptions or other public health threats could seriously harm our future revenues
and financial condition and increase our costs and expenses.

Our operations could be subject to earthquakes, power shortages or outages, telecommunications failures, water shortages, floods, hurricanes,
typhoons, fires, extreme weather conditions, medical epidemics such as contagious disease outbreaks, and other natural or manmade disasters or business
interruptions, for which we are predominantly self-insured. We do not carry insurance for all categories of risk that our business may encounter. The
occurrence of any of these business disruptions could seriously harm our operations and financial condition and increase our costs and expenses. We rely
on third-parties to supply various items which are critical for producing our product candidates. Our ability to produce clinical supplies of product
candidates could be disrupted, if the operations of these suppliers are affected by a man-made or natural disaster, a public health crisis or other business
interruption. For example, the ongoing coronavirus threat has spread to a number of countries, including the United States and various countries in Europe,
resulting in the declaration by the World Health Organization of a global pandemic and the announcement of extended travel restrictions, business
shutdowns, cancellations and prohibitions of large public gatherings and declarations of states of emergency in cities, states and countries around the world.
The imposition of any of these restrictions in one of the regions where our facilities or those of our third-party suppliers are located would have a
disproportionately negative impact on us. The extent of the ultimate impact to us, our significant suppliers and our general infrastructure resulting from
concentration in certain geographical areas is unknown and cannot be estimated, but our operations and financial condition would likely suffer in the event
of a major earthquake, fire or other natural disaster or public health threat such as the coronavirus pandemic in one or more of those areas. Further, any
significant uninsured liability may require us to pay substantial amounts, which would adversely affect our business, results of operations, financial
condition and cash flows from future prospects.

Risks Related to Intellectual Property

If we are unable to obtain or protect intellectual property rights, our competitive position could be harmed.

We depend on our ability to protect our proprietary technology. We rely on trade secret, patent, copyright and trademark laws, and confidentiality,
licensing and other agreements with employees and third parties, all of which offer only limited protection. Our commercial success will depend in large
part on our ability to obtain and maintain patent protection in the U.S. and other countries with respect to our proprietary technology and products. Where
we deem appropriate, we seek to protect our proprietary position by filing patent applications in the U.S. and abroad related to our novel technologies and
products that are important to our business. The patent positions of biotechnology and pharmaceutical companies generally are highly uncertain, involve
complex legal and factual questions and have in recent years been the subject of much litigation. As a result, the issuance, scope, validity, enforceability
and commercial value of our patents, including those patent rights licensed to us by third parties, are highly uncertain.

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The steps we have taken to protect our proprietary rights may not be adequate to preclude misappropriation of our proprietary information or
infringement of our intellectual property rights, both inside and outside the U.S. The rights already granted under any of our currently issued patents and
those that may be granted under future issued patents may not provide us with the proprietary protection or competitive advantages we are seeking. If we
are unable to obtain and maintain patent protection for our technology and products, or if the scope of the patent protection obtained is not sufficient, our
competitors could develop and commercialize technology and products similar or superior to ours, and our ability to successfully commercialize our
technology and products may be adversely affected.

With respect to patent rights, we do not know whether our pending patent applications for any of our technologies or product candidates will result in

the issuance of patents that protect such technologies or product candidates, or if any of our issued patents will effectively prevent others from
commercializing competitive technologies and products. Our pending patent applications cannot be enforced against third parties practicing the technology
claimed in such applications unless and until a patent issues from such applications. Further, the examination process may require us to narrow the claims
for our pending patent applications, which may limit the scope of patent protection that may be obtained if these applications are granted. Because the
issuance of a patent is not conclusive as to its inventorship, scope, validity or enforceability, issued patents that we own or have licensed from third parties
may be challenged in the courts or patent offices in the U.S. and abroad. Such challenges may result in the loss of patent protection, the narrowing of
claims in such patents or the invalidity or unenforceability of such patents, which could limit our ability to stop others from using or commercializing
similar or identical technology and products, or limit the duration of the patent protection for our technology and products. Protecting against the
unauthorized use of our patented technology, trademarks and other intellectual property rights is expensive, difficult and, in some cases, not be possible. In
some cases, it may be difficult or impossible to detect third-party infringement or misappropriation of our intellectual property rights, even in relation to
issued patent claims, and proving any such infringement may be even more difficult.

Intellectual property rights do not necessarily address all potential threats to any competitive advantage we may have.

The degree of future protection afforded by our intellectual property rights is uncertain because intellectual property rights have limitations, and may

not adequately protect our business, or permit us to maintain our competitive advantage. The following examples are illustrative:

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Others may be able to make compounds that are the same as or similar to our current or future product candidates but that are not covered by the
claims of the patents that we own or have exclusively licensed.

We might not have been the first to make the inventions covered by the issued patent or pending patent application that we own or have exclusively
licensed.

We or any of our licensors or strategic partners might not have been the first to file patent applications covering certain of our inventions.

Others may independently develop similar or alternative technologies or duplicate any of our technologies without infringing our intellectual
property rights.

It is possible that our pending patent applications will not lead to issued patents.

Issued patents that we own or have exclusively licensed may not provide us with any competitive advantages, or may be held invalid or
unenforceable, as a result of legal challenges by our competitors.

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Our competitors might conduct research and development activities in the U.S. and other countries that provide a safe harbor from patent
infringement claims for certain research and development activities, as well as in countries where we do not have patent rights and then use the
information learned from such activities to develop competitive products for sale in our major commercial markets.

We may not develop additional proprietary technologies that are patentable.

The patents of others may have an adverse effect on our business.

Our technology may be found to infringe upon third-party intellectual property rights.

Third parties, may in the future, assert claims or initiate litigation related to their patent, copyright, trademark and other intellectual property rights in
technology that is important to us. The asserted claims and/or litigation could include claims against us, our licensors or our suppliers alleging infringement
of intellectual property rights with respect to our products or components of those products. Regardless of the merit of the claims, they could be time
consuming, result in costly litigation and diversion of technical and management personnel, or require us to develop a non-infringing technology or enter
into license agreements. We cannot assure you that licenses will be available on acceptable terms, if at all. Furthermore, because of the potential for
significant damage awards, which are not necessarily predictable, it is not unusual to find even arguably unmeritorious claims resulting in large settlements.
If any infringement or other intellectual property claim made against us by any third party is successful, or if we fail to develop non-infringing technology
or license the proprietary rights on commercially reasonable terms and conditions, our business, operating results and financial condition could be
materially and adversely affected.

If our products, methods, processes and other technologies infringe upon the proprietary rights of other parties, we could incur substantial costs and

we may have to:

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obtain licenses, which may not be available on commercially reasonable terms, if at all;

abandon an infringing drug or therapy candidate;

redesign our products or processes to avoid infringement;

stop using the subject matter claimed in the patents held by others;

pay damages; or

defend litigation or administrative proceedings which may be costly whether we win or lose, and which could result in a substantial diversion of our
financial and management resources.

We may need to license intellectual property from third parties, and such licenses may not be available or may not be available on commercially
reasonable terms.

A third party may hold intellectual property, including patent rights that are important or necessary to the development of our products. It may be
necessary for us to use the patented or proprietary technology of a third party to manufacture, or otherwise commercialize, our own technology or products,
in which case we would be required to obtain a license from such third party. Licensing such intellectual property may not be available or may not be
available on commercially reasonable terms, which could have a material adverse effect on our business and financial condition.

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

In addition to seeking patents for some of our technology and product candidates, we also rely on trade secrets, including unpatented know-how,
technology and other proprietary information, to maintain our competitive position. We seek to protect these trade secrets, in part, by entering into non-
disclosure and confidentiality agreements with parties who have access to them, such as our employees, corporate collaborators, outside scientific
collaborators, contract manufacturers, consultants, advisors and other third parties. We also enter into confidentiality and invention or patent assignment
agreements with our employees and consultants. Despite these efforts, any of these parties may breach the agreements and disclose our proprietary
information, including our trade secrets, and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally
disclosed or misappropriated a trade secret is difficult, expensive and time-consuming, and the outcome is unpredictable. In addition, some courts inside
and outside of the U.S. are less willing or unwilling to protect trade secrets. If any of our trade secrets were to be lawfully obtained or independently
developed by a competitor, we would have no right to prevent them, or those to whom they communicate it, from using that technology or information to
compete with us. If any of our trade secrets were to be disclosed to or independently developed by a competitor, our competitive position would be harmed.

Risks Related to Owning Shares of Our Common Stock

Our share price may be volatile, which could subject us to securities class action lawsuits and prevent you from being able to sell your shares at or
above the price at which you purchased them.

Our stock could be subject to wide fluctuations in response to many risk factors listed in this section, and others beyond our control, including:

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results of our clinical trials;

results of clinical trials of our competitors’ products;

regulatory actions with respect to our products or our competitors’ products;

actual or anticipated fluctuations in our financial condition and operating results;

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

actual or anticipated fluctuations in our competitors’ operating results or changes in their growth rate;

competition from existing products or new products that may emerge;

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

issuance of new or updated research or reports by securities analysts;

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

delisting of the Company’s common shares from the exchange on which they trade due to the Company not being in compliance with the listing
requirements of the exchange;

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

additions or departures of key management or scientific personnel;

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disputes or other developments related to proprietary rights, including patents, litigation matters and our ability to obtain patent protection for our
technologies;

announcement or expectation of additional financing efforts;

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

market conditions for biopharmaceutical stocks in general; and

general economic and market conditions.

Furthermore, the stock markets have experienced extreme price and volume fluctuations that have affected and continue to affect the market prices of
equity securities of many companies. These fluctuations often have been unrelated or disproportionate to the operating performance of those companies. In
particular, stock markets have experienced extreme volatility in the first quarter of 2020 due to the ongoing coronavirus pandemic and investor concerns
and uncertainty related to the impact of the outbreak on the economies of countries worldwide. These broad market and industry fluctuations, as well as
general economic, political and market conditions such as recessions, interest rate changes or international currency fluctuations, may negatively impact the
market price of shares of our common stock. In addition, such fluctuations could subject us to securities class action litigation, which could result in
substantial costs and divert our management’s attention from other business concerns, which could seriously harm our business. If the market price of
shares of our common stock does not exceed your buying price, you may not realize any return on your investment in us and may lose some or all of your
investment.

Our directors, executive officers and principal shareholders continue to have substantial control over our company and could delay or prevent a
change in corporate control.

As of March 15, 2024 our directors, executive officers and principal shareholders, together with their affiliates, beneficially own, in the aggregate, at

least 11.8 million shares or approximately 38.7% of our outstanding common stock, and could own approximately 14.3 million shares or approximately
43.5% of our outstanding common stock if they fully exercise their outstanding stock options. As a result, these shareholders, if acting together, have the
ability to determine the outcome of matters submitted to our shareholders for approval, including the election of directors and any merger, consolidation or
sale of all or substantially all of our assets. In addition, these persons, acting together, have the ability to control the management and affairs of the
Company. Accordingly, this concentration of ownership may harm the market price of our common stock by:

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delaying, deferring or preventing a change in control of the Company;

impeding a merger, consolidation, takeover or other business combination involving the Company; or

discouraging a potential acquirer from making a tender offer or otherwise attempting to obtain control of the Company.

We have broad discretion in the use of the net proceeds from the Janssen Transaction and may not use them effectively.

We intend to continue to allocate the net proceeds that we received from our public offerings and the Janssen Transaction to fund discovery and
development of our next generation True Human™ anti-IL-1⍺ antibody program and to advance other antibody therapeutics in our pipeline. However, our
management will have broad discretion in the actual application of the net proceeds, and we may elect to allocate proceeds differently if we believe it
would be in our best interests to do so. For example, in February 2020, we completed a cash tender offer in which we repurchased $420 million of our
common shares. In July 2021, we distributed $75 million cash dividend to our shareholders. Our shareholders may not agree with the manner in which our
management chooses to allocate and spend the net proceeds. Our management may also fail to apply these funds effectively, which could have a material
adverse effect on our business. We may invest our cash on hand in a manner that does not produce income or that loses value.

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Provisions in our charter documents under Canadian law could make an acquisition of us, which may be beneficial to our shareholders, more difficult.

Our authorized preferred capital stock is available for issuance from time to time at the discretion of our Board of Directors, without shareholder

approval. Our Articles of Incorporation (“Articles”) grant our Board of Directors the authority, subject to the corporate law of British Columbia, to
determine or alter the special rights and restrictions granted to or imposed on any wholly unissued series of preferred shares, and such rights may be
superior to those of our common stock.

Limitations on the ability to acquire and hold our common stock may be imposed by the Competition Act (Canada). This legislation permits the

Commissioner of Competition of Canada to review any acquisition of a significant interest in us. This legislation grants the Commissioner jurisdiction to
challenge such an acquisition before the Canadian Competition Tribunal if the Commissioner believes that it would, or would be likely to, result in a
substantial lessening or prevention of competition in any market in Canada. The Investment Canada Act (Canada) subjects an acquisition of control of a
company by a non-Canadian to government review if the value of our assets as calculated pursuant to the legislation exceeds a threshold amount. A
reviewable acquisition may not proceed unless the relevant minister is satisfied that the investment is likely to be a net benefit to Canada.

Any of the foregoing could prevent or delay a change of control and may deprive or limit strategic opportunities for our shareholders to sell their

shares and/or affect the market price of our shares.

We may be a passive foreign investment company for US tax purposes which may negatively affect US investors.

We do not believe XBiotech is an “Investment Company”; instead, we believe it is a bona fide biopharmaceutical entity engaged in active
pharmaceutical R&D, evidenced by the recent sale of its drug candidate Bermekimab for $750 million and up to $600 million in potential milestone
payments and our extensive ongoing R&D activity. However, arbitrary definitions used to define a passive foreign investment company (PFIC) for US tax
purposes have made some financial analysts suggest we are a PFIC. Particularly, based on the blind criteria that if 75% or more of gross income is passive
income, with nothing else considered, then a company may be held to be a PFIC. Some years we don’t have income, since we only will have income when
for example we sell one of our drugs or when we get a drug to market and generate sales. But we do keep the company’s cash in an interest bearing bank
account or interest earning instruments. This generates interest income (or passive income) on our funds. We believe that to suggest that such bank account
interest makes us a PFIC is absurd; this would suggest that we cannot keep our cash in a bank account and that interest on the Company’s funds supersedes
any other consideration in defining the the actual operations and essential nature of the Company. XBiotech will never accept an arbitrary and erroneous
definition that could potentially penalize the Company and its shareholders and will oppose any effort to do so by the tax authorities. There is a risk that
that tax authorities could successfully assert our PFIC status, and in such event shares held by a US person in that year will be PFIC shares for that year and
all for subsequent years in which they are held by that person. PFIC rules can apply differently to different US shareholders depending on whether a
specific shareholder has made certain elections with respect to the ownership of PFIC shares.  Because these rules are complex and apply differently based
upon whether and when a US shareholder has made certain elections, new and existing US shareholders should consult with their tax advisors as to the
potential tax implications of acquiring, owning and disposing of our stock.

We are governed by the corporate laws in British Columbia, Canada which in some cases have a different effect on shareholders than the corporate
laws in Delaware, United States.

The material differences between the BCBCA as compared to the Delaware General Corporation Law (DGCL) which may be of most interest to

shareholders include the following:

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(i)

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for material corporate transactions (i.e. mergers and amalgamations, other extraordinary corporate transactions, amendments to our Articles) the
BCBCA generally requires two-thirds majority vote by shareholders, whereas DGCL generally only requires a majority vote of shareholders;

the quorum for shareholders meetings is not prescribed under the BCBCA and is only two persons representing 20% of the issued shares under our
Articles, whereas under DGCL, quorum requires a minimum of one-third of the shares entitled to vote to be present and companies’ certificates of
incorporation frequently require a higher percentage to be present;

under the BCBCA, a holder of 5% or more of our common stock can requisition a special meeting at which any matters that can be voted on at our
annual meeting can be considered, whereas the DGCL does not give this right;

our Articles require two-thirds majority vote by shareholders to pass a resolution for one or more directors to be removed, whereas DGCL only
requires the affirmative vote of a majority of the shareholders; however, many public company charters limit removal of directors to a removal for
cause; and

our Articles may be amended by resolution of our directors to alter our authorized share structure, including to consolidate or subdivide any of our
shares, whereas under DGCL, a majority vote by shareholders is generally required to amend a corporation’s certificate of incorporation and a
separate class vote may be required to authorize alterations to a corporation’s authorized share structure.

We cannot predict if investors will find our common stock less attractive because of these material differences. If some investors find our common

stock less attractive as a result, there may be a less active trading market for our common stock and our share price may be more volatile.

General Risk Factors

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

The terms of any financing arrangements we enter into may adversely affect the holdings or the rights of our shareholders and the issuance of
additional securities, by us, or the possibility of such issuance, may cause the market price of our shares to decline. The sale of additional equity or
convertible securities would dilute all of our shareholders. The incurrence of indebtedness would result in increased fixed payment obligations and,
potentially, the imposition of restrictive covenants. Those covenants may include 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.
We could also be required to seek funds through arrangements with collaborators or otherwise at an earlier stage than otherwise would be desirable
resulting in the loss of rights to some of our product candidates or other unfavorable terms, any of which may have a material adverse effect on our
business, operating results and prospects. Additional fundraising efforts may divert our management from their day-to-day activities, which may adversely
affect our ability to develop and commercialize our products.

Future sales, or the possibility of future sales, of a substantial number of our common stock could adversely affect the price of the shares and dilute
shareholders.

We may have a limited ability to use some or all of our net operating loss and research tax credit carryforwards in the future.

As a result of prior operating losses and research and development activities, we have net operating loss, or “NOL,” and research tax credit

carryforwards (collectively, the “carryforwards”) for U.S. federal income tax purposes. Under Section 382 of the Internal Revenue Code of 1986, as
amended, substantial changes in the Company’s ownership may limit the amount of carryforwards that could be utilized annually in the future to offset U.S.
taxable income and/or income tax. Specifically, this limitation may arise in the event of a cumulative change in ownership of the Company of more than
50% within a three-year period. Any such annual limitation may significantly reduce the utilization of the carryforwards before they expire.

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Future sales of a substantial number of our common stock, or the perception that such sales will occur, could cause a decline in the market price of

our common stock. As of March 15, 2024, we had 30,450,881 common shares outstanding.

In the future, we may issue additional common stock or other equity or debt securities convertible into common stock in connection with a financing,

acquisition, litigation settlement, employee arrangements or otherwise. Any such issuance could result in substantial dilution to our existing shareholders
and could cause our common share price to decline.

If we fail to maintain an effective system of internal control over financial reporting, we may not be able to accurately report our financial results or
prevent fraud. As a result, shareholders could lose confidence in our financial and other public reporting, which would harm our business and the
trading price of our common stock.

Effective internal controls over financial reporting are necessary for us to provide reliable financial reports and, together with adequate disclosure
controls and procedures, are designed to prevent fraud. Any failure to implement required new or improved controls, or difficulties encountered in their
implementation could cause us to fail to meet our reporting obligations. In addition, any testing by us conducted in connection with Section 404 or any
subsequent testing by our independent registered public accounting firm, may reveal deficiencies in our internal controls over financial reporting that are
deemed to be material weaknesses or that may require prospective or retroactive changes to our financial statements or identify other areas for further
attention or improvement. Inferior internal controls could also cause investors to lose confidence in our reported financial information, which could have a
negative effect on the trading price of our common stock.

We are required to disclose changes made in our internal controls and procedures on a quarterly basis and our management is required to assess the

effectiveness of these controls annually. However, for as long as we are a “smaller reporting company” with under $100 million in annual revenue, our
independent registered public accounting firm will not be required to attest to the effectiveness of our internal controls over financial reporting pursuant to
Section 404. An independent assessment of the effectiveness of our internal controls could detect problems that our management’s assessment might not.

ITEM 1B.         UNRESOLVED STAFF COMMENTS

Not applicable.

ITEM 2.            PROPERTIES

The Company owns 48 acres of industrial-zoned property located five miles from Austin’s central business district at the address of 5217 Winnebago

Ln, Austin, TX, 78744. In 2016 the company built a new combined R&D and manufacturing facility on this property. The Company uses this facility to
conduct research, discover new product candidates, produce products for clinical studies and provide administrative space to support its drug development
and other activities. In 2019, XBiotech constructed a new facility to house infectious disease and animal facilities. Located in a separate building on our
campus, just a short walk from the Company’s main manufacturing headquarters, the new facility incorporates an animal biological safety level 2 (ABSL2)
laboratory and other laboratories for developing and testing Company’s True Human™ antibodies against infectious disease targets. XBiotech owns the 48-
acre campus—and all structures on the property—debt-free and envisions further expansion of facilities on the property. In 2024 the Company is planning
to construct a new, multi-story 46,000ft2 R&D facility adjacent to the existing R&D facility on the Campus. The Company is also planning to construct a
5,000 ft2 research laboratory as part of a network of structures.

32

 
 
 
 
 
 
 
 
 
 
 
ITEM 3.            LEGAL PROCEEDINGS

The Company is not currently subject to any material legal proceedings.

ITEM 4.            MINE SAFETY DISCLOSURES

Not applicable.

33

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PART II

ITEM 5.          MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES
OF EQUITY SECURITIES

Market Information

Our common stock began trading on the NASDAQ Global Select Market on April 15, 2015 under the symbol “XBIT.” Prior to that time, there was

no established public trading market for our common stock.

Holders of record

There were 11 record holders of our common stock as of February 26, 2024.

Dividends

In July 2021, we paid $2.50 per share in dividends to shareholders. We currently intend to retain any earnings for future growth and, therefore, do not
expect comparable cash dividends will continue to be paid in the foreseeable future. Any future determination to declare cash dividends will be made at the
discretion of our Board of Directors, subject to applicable laws, and will depend on a number of factors, including our financial condition, results of
operations, capital requirements, contractual restrictions, general business conditions, and other factors that our Board of Directors may deem relevant.

Unregistered Sales of Equity Securities
[None.]

Issuer Purchases of Equity Securities
[None.]

ITEM 6.          RESERVED

ITEM 7.          MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION

AND RESULTS OF OPERATIONS

You should read the following discussion and analysis of our financial condition and results of operations together with our audited consolidated

financial statements for the year ended December 31, 2023 and related notes thereto, which have been prepared in accordance with U.S. GAAP, included
elsewhere in this annual report on Form 10-K. Some of the information contained in this discussion and analysis or set forth elsewhere in this annual
report on Form 10-K, including information with respect to our plans and strategy for our business and related financing, includes forward-looking
statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange
Act of 1934, as amended (the “Exchange Act”), and is subject to the safe harbor created by those sections. As a result of many factors, including those
factors set forth in the “Risk Factors” section of this annual report on Form 10-K, our actual results could differ materially from the results described in or
implied by the forward-looking statements contained in the following discussion and analysis. For more information, see “Cautionary Statement About
Forward-Looking Statements.” In particular, we encourage you to review the risks and uncertainties described in “Risk Factors” in this annual report on
Form 10-K. These forward-looking statements are made as of the date of this report, and we do not intend, and do not assume any obligation, to update
these forward-looking statements, except as required by law. All dollar amounts stated herein are in U.S. dollars unless specified otherwise.

34

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Overview         

XBiotech Inc. (“XBiotech” or the “Company”) is a pre-market biopharmaceutical company engaged in discovering and developing True Human™

monoclonal antibodies for treating a variety of diseases. True Human™ monoclonal antibodies are those which occur naturally in human beings—as
opposed to being derived from animal immunization or otherwise engineered. We believe that naturally occurring monoclonal antibodies have the potential
to be safer and more effective than their non-naturally occurring counterparts. XBiotech is focused on developing its True Human™ pipeline and
manufacturing system.

Following the Janssen Transaction in December 2019, the tender offer in February 2020, and the dividends paid in July 2021, retained accumulated

deficit earnings as of December 31, 2023 was ($52.3) million. We had a net loss of $24.6 million for the year ended December 31, 2023, compared to a net
loss of $32.9 million for the year ended December 31, 2022. During the fiscal year of 2024, we don’t expect to generate any revenues. In addition, we
expect to incur significant and increasing operating losses for the foreseeable future as we advance our drug candidates from discovery through preclinical
testing and clinical. In addition to these research and development expenses, we expect general and administrative costs to increase, particularly in
consideration of current inflationary trends. We will need to generate significant revenues to achieve or sustain profitability, and we may never do so. As of
December 31, 2023, we had 82 employees.

Components of Results of Operations

Revenues

Prior to receiving payments under the clinical manufacturing agreement entered in connection with the Janssen Transaction, we had not generated

any revenue. Under the clinical manufacturing agreement, we manufactured Bermekimab for use by Janssen in clinical trials, in exchange for fixed
payments, paid in quarterly installments through 2021. In February 2022, we entered a new manufacturing contract with a Janssen-related company
whereby we continued to manufacture Bermekimab through November 2022. The contract terminated in November 2022. Our ability to generate any
additional revenue and/or to become profitable (or sustain any profitability) depends on our ability to successfully commercialize any product candidates
we may advance in the future.

Operating Expenses

Research and Development Expenses

Research and development expense consists of expenses incurred in connection with identifying and developing our drug candidates. These expenses

consist primarily of salaries and related expenses, share-based compensation, the purchase of equipment, laboratory and manufacturing supplies, facility
costs, costs for preclinical and clinical research, development of quality control systems, quality assurance programs and manufacturing processes. We
charge all research and development expenses to operating expenses as incurred.

The clinical development costs may further increase going forward with potentially more advanced studies in the future as we evaluate our clinical

data and pipeline.

35

 
 
 
 
 
 
 
 
 
 
 
 
Clinical development timelines, likelihood of success and total costs vary widely. We do not currently track our internal research and development
costs or our personnel and related costs on an individual drug candidate basis. We use our research and development resources, including employees and
our drug discovery technology, across multiple drug development programs. As a result, we cannot state precisely the costs incurred for each of our
research and development programs or our clinical and preclinical drug candidates. From inception through December 31, 2023, we have recorded total
research and development expenses, including share-based compensation, of $311.9 million. Our total research and development expenses for the year
ended December 31, 2023 was $32.8 million, compared to $31.5 million the year ended December 31, 2022. Share-based compensation accounted for $2.8
million for the year ended December 31, 2023 and $3.6 million for the year ended December 31, 2022.

Research and development expenses as a percentage of total operating expenses was 88% for the year ended December 31, 2023, and 83% for the

year ended December 31, 2022. The percentages, excluding share-based compensation, were 88% for the year ended December 31, 2023, and 85% for the
year ended December 31, 2022.

We will select drug candidates and research projects for further development on an ongoing basis in response to their preclinical and clinical success

and commercial potential. For research and development candidates in early stages of development, it is premature to estimate when material net cash
inflows from these projects might occur.

General and Administrative Expenses

General and administrative expense consists primarily of salaries and related expenses for personnel in administrative, finance, business development

and human resource functions, as well as the legal costs of pursuing patent protection of our intellectual property and patent filing and maintenance
expenses, share–based compensation, and professional fees for legal services. Our total general and administration expenses was $4.7 million for the year
ended December 31, 2023, and $6.3 million for the year ended December 31, 2022. Share-based compensation accounted for $0.5 million for the year
ended December 31, 2023, and $1.4 million for the year ended December 31, 2022.

General and administrative expenses as a percentage of total operating expenses was 12% for the year ended December 31, 2023, and 17% for the

year ended December 31, 2022. The percentages, excluding share-based compensation, were 12% for the year ended December 31, 2023, and 15% for the
year ended December 31, 2022.

Critical Accounting Estimates

Our Management’s Discussion and Analysis of Financial Condition and Results of Operations is based on our financial statements, which have been
prepared in conformity with generally accepted accounting principles in the United States (US GAAP). The preparation of our financial statements requires
us to make estimates and assumptions that affect the reported amounts of assets and liabilities and expenses incurred during the reported periods.

We base estimates on our historical experience, known trends and various other factors that we believe are reasonable under the circumstances, the

results of which form the basis for making judgments about the carrying value of assets and liabilities that are not apparent from other sources. Actual
results may differ from these estimates under different assumptions or conditions.

While our significant accounting policies are more fully described in the notes to our financial statements appearing in this Annual Report on Form

10-K, we believe that the following accounting policies are the most critical to understanding and evaluating our reported financial results.

Share-Based Compensation

Stock-based awards are measured at fair value at each grant date. We recognize share-based compensation expenses ratably over the requisite service

period of the option award.

36

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Determination of the Fair Value of Share-Based Compensation Grants

The determination of the fair value of share-based compensation arrangements is affected by a number of variables, including estimates of the

expected stock price volatility, risk-free interest rate and the expected life of the award. We value stock options using the Black-Scholes option-pricing
model, which was developed for use in estimating the fair value of traded options that are fully transferable and have no vesting restrictions. Black-Scholes
option-pricing model and other option valuation models require the input of highly subjective assumptions, including the expected stock price volatility. If
we made different assumptions, our share-based compensation expenses, net loss, and net loss per common share could be significantly different. We
determine that the fair value of common stock as the closing price of the Company’s common stock as reported by NASDAQ on the option grant date.

The following summarizes the assumptions used for estimating the fair value of stock options granted during the periods indicated:

Weighted-average grant date fair value per share
Expected volatility
Risk-free interest rate
Expected life (in years)
Dividend yield

  $

Year Ended December 31,

2023 
2.89 
  $
80%-82%   
3.3%-4.6%   
5.38–6.25 
— 

2022 
4.92 
82%-83%
1.5%-4.1%
5.38–6.25 
— 

With the exception of the dividend paid in 2021, we have assumed no dividend yield because we do not expect to pay dividends in the foreseeable

future. The risk-free interest rate assumption is based on observed interest rates for U.S. Treasury securities with maturities consistent with the expected life
of our stock options. The expected life represents the period of time the stock options are expected to be outstanding and is based on the simplified method
when the stock option includes “plain vanilla” terms. Under the simplified method, the expected life of an option is presumed to be the midpoint between
the vesting date and the end of the agreement term. We used the simplified method due to the lack of sufficient historical exercise data to provide a
reasonable basis upon which to otherwise estimate the expected life of the stock options. For stock options that did not include “plain vanilla” terms, we
used the contractual life of the stock option as the expected life. Such stock options consisted primarily of options issued to our board of directors that were
immediately vested at issuance. Expected volatility is based on historical volatilities for publicly traded stock of comparable companies over the estimated
expected life of the stock options. The Company accounts for forfeitures as they occur rather than on an estimated basis.

Income Taxes

We account for income taxes under the asset and liability method. We record deferred tax assets and liabilities for the future tax consequences
attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, as well as for
operating loss and tax credit carryforwards. We measure deferred tax assets and liabilities using enacted tax rates expected to apply to taxable income in the
years in which we expect to recover or settle those temporary differences. We recognize the effect of a change in tax rates on deferred tax assets and
liabilities in the results of operations in the period that includes the enactment date. We assess the likelihood that deferred tax assets will be realized, and we
recognize a valuation allowance if it is more likely than not that some portion of the deferred tax assets will not be realized. This assessment requires
judgment as to the likelihood and amounts of future taxable income by tax jurisdiction. To date, we have provided a valuation allowance against our
deferred tax assets as we believe the objective and verifiable evidence of our historical pretax net losses outweighs any positive evidence of our forecasted
future results. Although we believe that our tax estimates are reasonable, the ultimate tax determination involves significant judgment. We will continue to
monitor the positive and negative evidence and will adjust the valuation allowance as sufficient objective positive evidence becomes available.

We account for uncertain tax positions by recognizing the financial statement effects of a tax position only when, based upon technical merits, it is

more likely than not that the position will be sustained upon examination. We recognize potential accrued interest and penalties associated with
unrecognized tax positions within our global operations in income tax expense.

37

 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
 
 
 
 
 
Clinical Trial Accruals

Expense accruals related to clinical trials are based on the Company’s estimates of services received and efforts expended pursuant to contracts with

third party service providers conduct and manage clinical trials on the Company’s behalf. The financial terms of these agreements vary from contract to
contract and may result in uneven payment flows. Payments under some of these contracts depend on factors such as the successful enrollment of patients
and the completion of clinical trial milestones. In accruing costs, the Company estimates the period over which services will be performed and the level of
effort to be expended in each period based upon patient enrollment, clinical site activations, or information provided to the Company by its vendors on their
actual costs incurred. Any estimates of the level of services performed or the costs of these services could differ from actual results.

Results of Operations

Revenue

Revenue during the years ended December 31, 2023, and 2022 are summarized as follows (in thousands):

Revenue

Manufacturing revenue
Clinical Trial revenue

Total revenue

Year Ended December 31,
2022
2023

  $

  $

-    $
-     
-    $

4,010 
- 
4,010 

We had not generated any revenue before the year 2020. Under the clinical manufacturing agreement with Janssen and the addendum, for the year

ended December 31, 2022, we have recorded $4.0 million as manufacturing revenue.

Cost of Goods Sold

Cost of goods sold during the years ended December 31, 2023, and 2022 are summarized as follows (in thousands):

Cost of goods sold

Manufacturing cost
Clinical trial cost
Total cost of goods sold

Year Ended December 31,
2022
2023

  $

  $

-    $
-     
-    $

651 
- 
651 

We had not incurred any cost of goods sold before the year 2020.The manufacturing cost for the year ended December 31, 2022, represents period

expense for manufacturing, quality assurance and quality control departments.

38

 
 
 
 
 
 
 
 
 
 
 
 
   
 
     
       
 
   
 
 
 
 
 
 
 
 
 
   
 
     
       
 
   
 
 
Expenses

Research and Development

Research and Development costs are summarized as follows (in thousands):

Salaries and related expenses
Laboratory and manufacturing supplies
Clinical trials and sponsored research
Share-based compensation
Other
Total

Year Ended
December 31,

2023

2022

Increase
(Decrease)

    % Increase  
(Decrease)

  $

  $

13,385    $
3,723     
5,380     
2,797     
7,563     
32,848    $

10,534    $
6,477     
2,047     
3,641     
8,845     
31,544    $

2,851     
(2,754)    
3,333     
(844)    
(1,282)    
1,304     

27%
-43%
163%
-23%
-14%
4%

We do not currently track our internal research and development costs or our personnel and related costs on an individual drug candidate basis. We
use our research and development resources, including employees and our drug discovery technology, across multiple drug development programs. As a
result, we cannot state precisely the costs incurred for each of our research and development programs or our clinical and preclinical drug candidates.

Research and development expenses increased 4% to $32.8 million for the year ended December 31, 2023 compared to $31.5 million for the year

ended December 31, 2022. The rise was mainly due to the increase in clinical trials activities, related to the new study being initiated in the second quarter
of 2023. The increase of salaries and related expenses was mainly due to the $4.5 million bonus to the Chief Executive Officer in June 2023 compared to
the $3.8 million bonus in June 2022, in which 85% was allocated to research and development expenses in 2023 compared to 60% in 2022. In addition, the
decrease of laboratory and manufacturing supplies was primary caused by a reduction in raw material purchasing for clinical trial drug manufacturing.

General and Administrative

General and administrative costs are summarized as follows (in thousands):

Salaries and related expenses
Patent filing expense
Share-based compensation
Professional fees
Other
Total

Year Ended
December 31,

2023

2022

Increase
(Decrease)

    % Increase  
(Decrease)

1,281    $
691     
465     
1,422     
803     
4,662    $

2,494    $
540     
1,421     
1,035     
815     
6,305    $

(1,213)    
151     
(956)    
387     
(12)    
(1,643)    

-49%
28%
-67%
37%
-1%
-26%

  $

  $

39

 
 
 
 
 
 
 
   
 
 
   
   
   
 
   
   
   
   
 
 
 
 
 
 
 
   
 
 
   
   
   
 
   
   
   
   
 
General and administrative expenses decreased 26% to $4.7 million for the year ended December 31, 2023 compared to $6.3 million for the year

ended December 31, 2022. The decrease was primarily driven by the salaries and related expenses. The bonus to the Chief Executive Officer in June 2023
was $4.5 million compared to the $3.8 million bonus in June 2022, in which 15% was allocated to general and administrative expenses in 2023 compared
to 40% in 2022. Share-based compensation decreased $1.0 million mainly due to the termination of VP of Finance and HR in February 2023, which
resulted in the forfeiture of unvested awards, and the stock option expense per share of new grants decreased compared to the expense of fully amortized
grants. In addition, professional fees increased $0.4 million mainly caused by the service fees related to the tender offer in June 2023.

Other Income

The following table summarizes other income (in thousands):

Interest income
Other income (expense)
Foreign exchange gain (loss)
Total

Year Ended December 31,
2022
2023

  $

  $

10,421    $
883     
1,893     
13,197    $

3,823 
(121)
(2,800)
902 

The interest income for the years ended December 31, 2023 and 2022 was mainly generated from the Company’s Canadian bank accounts and
interest bearing time deposits. The other income during the year ended December 31, 2023 was primarily from American Stock Transfer & Trust Company,
LLC in accordance with the terms outlined in the settlement agreement. Foreign exchange gain (loss) was due to the fluctuation between the US dollar and
the Canadian dollar in the year ended December 31, 2023 compared to 2022.

Income Taxes

The Company’s income tax expense for the tax period ended December 31, 2023 of $0.2 million, was primarily driven by adjustments related to
prior periods and current year uncertain tax positions. The Company's income tax benefit for the tax period ended December 31, 2022 of $0.7 million, was
primarily driven by the estimated 2022 Canadian loss carrybacks to 2019. The Company expects to maintain its full valuation allowance in all jurisdictions
during 2024.

Liquidity and Capital Resources

Our cash requirements could change materially as a result of the progress of our research and development and clinical programs, licensing activities,

acquisitions, divestitures or other corporate developments.

Since our inception on March 22, 2005 through December 31, 2023, we have funded our operations principally through private placements and
public offerings of equity securities, which have provided aggregate cash proceeds of approximately $118.2 million. We received $675 million in cash
proceeds from the Janssen Transaction in the year ended December 31, 2019. In June 2021, we received the remaining $75 million in cash from the escrow
receivable from the same transaction. In July 2021, we paid $75 million in dividends to shareholders. In July 2022, we purchased interest bearing time
deposits in the amount of $59.5 million for a one-year term, and upon maturity in July 2023, both the principal amount and the accrued interest were
returned. At December 31, 2023, we had cash and cash equivalents of $200.0 million as compared to cash and cash equivalents of $157.3 million at
December 31, 2022. The following table summarizes our sources and uses of cash (in thousands):

40

 
 
 
 
 
 
 
 
 
 
   
 
   
   
 
 
 
 
 
 
 
Net cash (used in) provided by:
Operating activities
Investing activities
Financing activities
Effect of foreign exchange rate on cash and cash equivalents
Net change in cash and cash equivalents

Operating Activities

Year Ended December 31,
2022
2022

(18,725)   $
61,497     
(9)    
(46)    
42,717    $

(14,824)
(63,892)
- 
(961)
(79,677)

  $

  $

During the years ended December 31, 2023 and 2022 net cash used in operating activities was $(18.7) million and $(14.8) million, respectively. Net

cash used in the years ended December 31, 2023 and 2022 primarily resulted from our net losses, whereas for the year ended December 31, 2022 the
company received $4 million in revenue from the clinical manufacturing agreement with Janssen and the addendum.

Investing Activities

During the years ended December 31, 2023 and 2022, our investing activities generated net cash of $61.5 million and used net cash of $63.9 million,

respectively. In July 2022, we purchased interest bearing time deposits in the amount of $63.3 million. Upon maturity in July 2023, we obtained both the
principal amount and the accrued interest.

Financing Activities

During the year ended December 31, 2023, our financing activities used net cash of $9 thousand. We purchased 3,561 shares of our common stock, at

a price of $4.00 per share, for an aggregate cost of approximately $14 thousand. During the year ended December 31, 2023, employees exercised stock
options to purchase 1,250 shares of our common stock for approximately $5 thousand in net proceeds.

We expect to continue to incur operating losses in the future. We do not expect to receive any additional revenue under the clinical manufacturing
agreement with Janssen. Further, we may not receive any product revenue until a drug candidate has been approved by the FDA, EMA or similar regulatory
agencies in other countries and successfully commercialized. As of December 31, 2023, our principal sources of liquidity were our cash and cash
equivalents, which totaled approximately $200.0 million.

Based on our cash and liquid assets, we believe that our cash and liquid assets will provide us with sufficient financial resources to fund operations

and meet our capital requirements and anticipated obligations as they become due.

Off-Balance Sheet Arrangements

Since inception, we have not engaged in any off-balance sheet activities, including the use of structured finance, special purpose entities or variable

interest entities.

ITEM 7A.          QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKS

We are a smaller reporting company as defined by Rule 12b-2 of the Exchange Act and are not required to provide the information required under

this item.

41

 
 
 
 
 
 
   
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM  8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Index to Financial Statements

Reports of Independent Registered Public Accounting Firm (PCAOB Firm ID: 726)
Consolidated Balance Sheets
Consolidated Statements of Operations
Consolidated Statements of Comprehensive Loss
Consolidated Statements of Shareholders’ Equity
Consolidated Statements of Cash Flows
Notes to Consolidated Financial Statements

43
44
45
46
47
48
49

42

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and Board of Directors of XBiotech Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Xbiotech Inc. and subsidiaries (the “Company”) as of December 31, 2023 and 2022, and
the related consolidated statements of operations, comprehensive loss, shareholders’ equity, and cash flows for the years then ended, and the related notes
to the consolidated financial statements (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, 2023 and 2022, and the results of their operations and their cash flows for the
years then ended, 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 these 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 audits 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 entity’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 Matters

Critical audit matters are matters arising from the current period audit of the financial statements that were communicated or required to be communicated
to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially
challenging, subjective, or complex judgments. We determined that there are no critical audit matters.

/s/ Whitley Penn LLP

We have served as the Company's auditor since 2022.

Austin, Texas
March 15, 2024

43

 
 
 
 
 
 
 
 
 
 
 
 
 
 
XBiotech Inc.

Consolidated Balance Sheets
(in thousands, except share data)

  December 31, 2023   

December 31,
2022

  $

  $

  $

200,023    $
-     
860     
75     
760     
201,718     
24,897     
226,615    $

2,516    $
3,501     
83     
6,100     

1,669     
-     
7,769     

157,306 
60,172 
1,216 
548 
601 
219,843 
26,260 
246,103 

2,408 
1,603 
55 
4,066 

1,576 
59 
5,701 

Assets
Current assets:

Cash and cash equivalents
Interest bearing time deposits
Accrued interest receivable
Income tax receivable
Prepaid expenses and other current assets

Total current assets
Property and equipment, net
Total assets

Liabilities and shareholders’ equity
Current liabilities:

Accounts payable
Accrued expenses
Income tax payable
Total current liabilities
Long-term liabilities:
Income tax payable
Deferred tax liability

Total liabilities

Shareholders’ equity:
Preferred stock, no par value, unlimited shares authorized, no shares outstanding
Common stock, no par value, unlimited shares authorized, 30,436,964 and 30,439,275 shares outstanding at

-     

- 

December 31, 2023 and December 31, 2022, respectively
Accumulated other comprehensive income
Accumulated deficit
Total shareholders’ equity

271,152     
-     
(52,306)    
218,846     

Total liabilities and shareholders’ equity

  $

226,615    $

267,325 
826 
(27,749)
240,402 

246,103 

See accompanying notes to consolidated financial statements.

44

 
 
 
 
 
 
 
     
       
 
     
       
 
     
       
 
   
   
   
   
   
   
 
     
       
 
     
       
 
     
       
 
   
   
   
     
       
 
   
   
   
 
     
       
 
     
       
 
   
   
   
   
   
 
     
       
 
 
 
XBiotech Inc.

Consolidated Statements of Operations
(in thousands, except share and per share data)

Revenue:

Manufacturing revenue

Total revenue
Cost of goods sold:

Manufacturing cost
Total cost of goods sold
Gross margin

Operating expenses:

Research and development
General and administrative

Total operating expenses
Loss from operations

Other income:

Interest income
Other income (expense)
Foreign exchange gain (loss)

Total other income
Loss before income taxes

Income tax (expense) benefit

Net loss
Net loss per share—basic
Shares used to compute basic net loss per share
Net loss per share—diluted
Shares used to compute diluted net loss per share

See accompanying notes to consolidated financial statements.

45

Year Ended December 31,
2022
2023

-    $
-     

-     
-     
-     

32,848     
4,662     
37,510     
(37,510)    

10,421     
883     
1,893     
13,197     
(24,313)    
(244)    
(24,557)   $
(0.81)   $
30,438,459     
(0.81)   $
30,438,459     

4,010 
4,010 

651 
651 
3,359 

31,544 
6,305 
37,849 
(34,490)

3,823 
(121)
(2,800)
902 
(33,588)
688 
(32,900)
(1.08)
30,439,275 
(1.08)
30,439,275 

  $

  $
  $

  $

 
 
 
 
 
 
 
 
 
 
   
 
     
       
 
   
     
       
 
   
   
   
 
     
       
 
     
       
 
   
   
   
   
 
     
       
 
     
       
 
   
   
   
   
   
   
   
   
 
 
XBiotech Inc.

Consolidated Statements of Comprehensive Loss
(in thousands)

Net loss
Realized comprehensive income
Foreign currency translation adjustment
Reclassification of deferred tax assets
Comprehensive loss

See accompanying notes to consolidated financial statements.

Year Ended December 31,
2022
2023

(24,557)   $
-     
(252)    
(574)    
(25,383)   $

(32,900)
(1,567)
422 
- 
(34,045)

  $

  $

46

 
 
 
 
 
 
 
 
 
 
   
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XBiotech Inc.

Consolidated Statements of Shareholders' Equity
(in thousands)

Number of
Shares

Common
Stock Amount   

Accumulated
Other
Comprehensive
Income

Retained
Earnings
(Accumulated
deficit)

Balance at December 31, 2021
Net loss
Foreign currency translation adjustment
Realized comprehensive income
Share-based compensation expense
Balance at December 31, 2022
Net loss
Tender offer
Foreign currency translation adjustment
Reclassification of deferred tax assets
Issuance of common stock under stock option plan
Share-based compensation expense
Balance at December 31, 2023

See accompanying notes to consolidated financial statements.

30,439    $
-     
-     
-     
-     
30,439     
-     
(4)    
-     
-     
1     
-     
30,436    $

47

262,263    $
-     
-     
-     
5,062     
267,325     
-     
(14)    
-     
574     
5     
3,262     
271,152    $

1,971    $
-     
422     
(1,567)    
-     
826     
-     
-     
(252)    
(574)    
-     
-     
-    $

5,151    $
(32,900)    
-     
-     
-     
(27,749)    
(24,557)    
-     
-     
-     
-     
-     
(52,306)   $

Total

269,385 
(32,900)
422 
(1,567)
5,062 
240,402 
(24,557)
(14)
(252)
- 
5 
3,262 
218,846 

 
 
 
 
 
 
 
   
   
   
 
   
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
XBiotech Inc.

Consolidated Statements of Cash Flows
(in thousands)

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

Depreciation
Foreign exchange (gain) loss
Share-based compensation expense
Changes in operating assets and liabilities:

Income tax receivable
Accrued interest receivable
Prepaid expenses and other current assets
Accounts payable
Accrued expenses
Income tax payable
Deferred tax liability

Net cash (used in) provided by operating activities

Investing activities
Purchase of property and equipment
Proceeds from maturity (purchases of) interest bearing time deposits
Net cash provided by (used in) investing activities

Financing activities
Cash paid in tender offer
Issuance of common stock under stock option plan
Net cash used in financing activities
Effect of foreign exchange rate on cash and cash equivalents

Net change in cash and cash equivalents
Cash and cash equivalents, beginning of year
Cash and cash equivalents, end of year
Supplemental Information:
Purchases of property and equipment in accounts payable

See accompanying notes to consolidated financial statements.

Year Ended December 31,
2022
2023

  $

(24,557)   $

(32,900)

1,744     
(1,893)    
3,262     

473     
356     
(160)    
91     
1,895     
123     
(59)    
(18,725)    

(362)    
61,859     
61,497     

(14)    
5     
(9)    
(46)    

42,717     
157,306     
200,023    $

2,614 
2,800 
5,062 

8,556 
(1,216)
334 
357 
229 
155 
(815)
(14,824)

(585)
(63,307)
(63,892)

- 
- 
- 
(961)

(79,677)
236,983 
157,306 

19    $

18 

  $

  $

48

 
 
 
 
 
 
 
 
 
 
   
 
     
       
 
     
       
 
   
   
   
     
       
 
   
   
   
   
   
   
   
   
 
     
       
 
     
       
 
   
   
   
 
     
       
 
     
       
 
   
   
   
   
 
     
       
 
   
   
     
       
 
 
 
XBiotech Inc.
Notes to Consolidated Financial Statements

1. Organization

XBiotech Inc. (“XBiotech” or the “Company”) was incorporated in Canada on March 22, 2005. The Company’s headquarters are located in

Austin, Texas. XBiotech USA, Inc., a wholly-owned subsidiary of the Company, was incorporated in Delaware, United States in November 2007.
XBiotech Germany GmbH, a wholly-owned subsidiary of the Company, was incorporated in Germany in January 2014. XBiotech Germany GmbH was
dissolved in February 2023.

Since its inception, XBiotech has focused on advancing technology to rapidly identify and clone antibodies from individuals that have resistance
to disease. At the heart of the Company is a proprietary technical knowhow to translate natural human immunity into therapeutic product candidates. The
Company has in its pipeline both anti-infective and anti-inflammatory candidate therapeutics derived from this technology.

An area of medical focus for XBiotech are therapies that block a potent substance naturally produced by body, known as interleukin-1 alpha (IL-
1a), that mediates tissue breakdown, angiogenesis, the formation of blood clots and inflammation. IL-1a is a protein that is on or in cells of the body and is
involved in the body’s response to injury or trauma. In almost all chronic and in some acute injury scenarios (such as stroke or heart attack), IL-1a may
mediate harmful disease-related activity.

At the end of 2019, XBiotech sold a True Human™ antibody that blocked IL-1a activity for $750 million in cash and up to $600 million in

potential milestone payments (the “Janssen Transaction”). On February 2, 2022, XBiotech announced an addendum to the 2019 Janssen Manufacturing
Agreement. XBiotech continued to manufacture Bermekimab for use by Janssen in its clinical trials through November 2022. As part of the Janssen
Transaction, XBiotech maintained the right to develop new antibodies that block IL-1a and develop these therapeutics in all areas of medicine except
dermatology. Moreover, all patents acquired by Janssen relating to IL-1a would be asserted for the benefit of XBiotech to protect its future IL-1a related
therapies in all non-dermatological indications. Consequently, XBiotech is pursuing the development of other True Human™ antibodies targeting IL-1a for
areas of medicine outside of dermatology. The Company’s True Human™ antibody discovery technology has been used to identify new IL-1a targeting
product candidates and has already brought one such candidate into a clinical studies in oncology and rheumatology; and another anti-IL-1a antibody into a
Phase I study in neurology. While the Company previously was focused on a single True Human™ antibody targeting IL-1a, it is now developing more
than one product candidate that targets IL-1a to be used in different areas of medicine.

The Company is subject to a number of risks common to companies in clinical stage of development. Principal among these risks are the
uncertainties of technological innovations, dependence on key individuals, development of the same or similar technological innovations by the Company’s
competitors and protection of proprietary technology. The Company’s ability to fund its planned clinical operations, including completion of its planned
trials, is expected to depend on the amount and timing of cash receipts from future collaboration or product sales and/or financing transactions. The
Company believes that its cash and cash equivalents of $200.0 million at December 31, 2023, will enable the Company to achieve several major inflection
points, including completion of clinical studies with lead product candidates. The Company expects to have sufficient cash through at least 12 months from
the date of this report.

2. Significant Accounting Policies

Basis of Presentation

These consolidated financial statements have been prepared in conformity with U.S. Generally Accepted Accounting Principles (“US GAAP”). In

the opinion of management, the accompanying consolidated financial statements reflect all adjustments (consisting only of normal recurring items)
considered necessary to present fairly the Company’s financial position at December 31, 2023 and 2022, the results of its operations and comprehensive
loss for the years ended December 31, 2023, and 2022, and the cash flows for the years ended December 31, 2023, and 2022.

49

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Basis of Consolidation

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany

transactions have been eliminated upon consolidation.

Use of Estimates

The preparation of financial statements in accordance with accounting principles generally accepted in the U.S. requires management to make

estimates and assumptions that affect the reported values of amounts in the financial statements and accompanying notes. Actual results could differ from
those estimates.

Revenue

Revenue from the Janssen Agreements

The Company recognized revenues from its Janssen Agreements as follows:

The Company entered into its clinical manufacturing and clinical trial services arrangements in connection with its sale of certain intellectual

property on December 30, 2019. These contracts commenced January 1, 2020. The Company executed an addendum related to manufacturing agreement,
which generated revenue through November 2022. While these agreements are not considered contracts with a customer based on the terms thereof, the
Company has applied the revenue recognition guidance by analogy.

XBiotech is still in the research and development phase. The eventual output of the Company’s intended ordinary activities will be the licensing of

intellectual property and/or sale of commercialized compounds for use in pharmaceutical treatment of disease, not the performance of manufacturing of
development stage compounds or clinical trials for others. Although Janssen was not a customer, as these services are not the output of XBiotech’s ordinary
activities, the Company evaluated the terms of the agreements and analogized to Accounting Standards Codification, Topic 606, Revenue from Contracts
with Customers (“ASC 606”) for clinical manufacturing and clinical trial services revenue recognition.

Under ASC 606, an entity recognizes revenue when (or as) its customer obtains control of promised goods or services, in an amount that reflects

the consideration that the entity expects to receive in exchange for those goods or services. To determine revenue recognition for arrangements that an
entity determines are within the scope of ASC 606 (or for those analogized to it), 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 entity satisfies a performance obligation. The Company only applies
the five-step model to contracts (including by analogy) when it is probable that the Company will collect the consideration it is entitled to in exchange for
the goods or services it transfers to the counterparty. At contract inception, once the contract is determined to be within the scope of or analogized to ASC
606, the Company assesses the goods or services promised within each contract and determine 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 when (or as) the performance obligation is satisfied.

Manufacturing Revenue

The Company had a Clinical Manufacturing Agreement that it accounted for by analogy to ASC 606. In 2022 the Company executed a new
manufacturing agreement with a Janssen related company. The agreement generated $4.0 million in revenue through termination in November 2022.

50

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Research and Development Costs

All research and development costs are charged to expense as incurred. Research and development costs include salaries and personnel-related

costs, consulting fees, fees paid for contract clinical trial research services, the costs of laboratory consumables, equipment and facilities, license fees and
other external costs. Costs incurred to acquire licenses for intellectual property to be used in research and development activities with no alternative future
use are expensed as incurred as research and development costs.

Nonrefundable advance payments for goods or services to be received in the future for use in research and development activities are deferred and

capitalized. The capitalized amounts are expensed as the related goods are delivered or the services are performed.

Clinical Trial Accruals

Expense accruals related to clinical trials are based on the Company’s estimates of services received and efforts expended pursuant to contracts
with  third  party  service  providers  that  conduct  and  manage  clinical  trials  on  the  Company’s  behalf.  The  financial  terms  of  these  agreements  vary  from
contract to contract and may result in uneven payment flows. Payments under some of these contracts depend on factors such as the successful enrollment
of patients and the completion of clinical trial milestones. In accruing costs, the Company estimates the period over which services will be performed and
the level of effort to be expended in each period based upon patient enrollment, clinical site activations, or information provided to the Company by its
vendors on their actual costs incurred. Any estimates of the level of services performed or the costs of these services could differ from actual results.

Income Taxes

In December 2023, the FASB issued ASU 2023-09, "Income Taxes (Topic 740): Improvements to Income Tax Disclosures" ("ASU 2023-09"),

which enhances the transparency and decision usefulness of income tax disclosures. Adjustments to the annual disclosure of income taxes include: (1) A
tabular rate reconciliation comprised of eight specific categories, (2) Incomes taxes paid, disaggregated between significant federal, state, and foreign
jurisdictions, (3) Eliminates requirements to disclose the nature and estimate of reasonably possible changes to unrecognized tax benefits in the next 12
months or that an estimated range cannot be made, and (4) Adds a requirement to disclose income (or loss) from continuing operations before income tax
expense (or benefit) and income tax expense (or benefit) from continuing operations disaggregated between domestic and foreign. The ASU is effective for
public business entities for fiscal years beginning on or after December 15, 2024 with early adoption permitted. The amendments in ASU 2023-09 should
be applied on a prospective basis and retrospective application is permitted. The Company is in the process of evaluating the impact of adoption of ASU
2023-09 on the Company's consolidated financial statements and disclosures.

The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for

the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and
their respective tax bases. The Company measures deferred tax assets and liabilities using the enacted tax rates for the years and jurisdictions in which the
temporary differences are expected to be recovered. A change to the tax rates used to measure the Company’s deferred taxes is recognized in income during
the period in which the new rate(s) were enacted.

The Company recognizes deferred tax assets to the extent the Company’s assets are more likely than not to be realized. In making such a

determination, the Company considers all available positive and negative evidence, including the future reversals of existing taxable temporary differences,
projected future taxable income exclusive of reversing temporary differences and carryforwards, tax-planning strategies, taxable income in prior carryback
years if permitted under tax law, and the results from prior years. If the Company determines it is more likely than not, that all or a portion of a deferred tax
asset will not be realized a valuation allowance is recorded with a charge to income tax expense. Alternatively, if the Company determines that all or a
portion of a deferred tax asset previously not meeting the more likely than not threshold will be realized, the Company reduces its valuation allowance and
recognizes a benefit in income tax expense.

51

 
 
 
 
 
 
 
 
 
 
 
The Company recognizes and measures uncertain tax benefits in accordance with ASC 740 based on a two-step process in which (1) the Company

determines whether it is more likely than not that the tax position will be sustained based on the technical merits of the position, and (2) for those tax
positions that meet the more-likely-than-not recognition threshold, the Company recognizes the largest amount of tax benefit that is more than fifty percent
likely to be realized upon ultimate settlement with the related tax authority. The Company's policy is to recognize interest and penalties, if any, in income
tax expense.

Share-Based Compensation

The Company accounts for its share-based compensation awards in accordance with ASC Topic 718, Compensation-Stock Compensation (“ASC

718”). ASC 718 requires all share-based payments to employees, including grants of employee stock options, to be recognized in the statements of
operations based on their grant date fair values. For stock options granted to employees and to members of the board of directors for their services on the
board of directors, the Company estimates the grant date fair value of each option award using the Black-Scholes option-pricing model. The use of the
Black-Scholes option-pricing model requires management to make assumptions with respect to the expected term of the option, the expected volatility of
the common stock consistent with the expected life of the option, risk-free interest rates, and expected dividend yields of the common stock. To determine
the fair value of its common stock, the Company uses the closing price of the Company’s common stock as reported by NASDAQ. For awards subject to
service-based vesting conditions, the Company recognizes share-based compensation expense, equal to the grant date fair value of stock options, on a
straight-line basis over the requisite service period. The Company accounts for forfeitures as they occur rather than on an estimated basis.

Share-based compensation expense recognized for the years ended December 31, 2023, and 2022 was included in the following line items on the

consolidated statements of operations (in thousands).

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

Year Ended
December 31,

2023

2022

  $

  $

2,797    $
465     
3,262    $

3,641 
1,421 
5,062 

The fair value of each option is estimated on the date of grant using the Black-Scholes method with the following assumptions:

Weighted-average grant date fair value per share
Expected volatility
Risk-free interest rate
Expected life (in years)
Dividend yield

Cash and Cash Equivalents

Year Ended
December 31,

2023

2022

  $

  $
2.89 
80%-82%   
3.3%-4.6%   
5.38–6.25 
- 

4.92 
82%-83%
1.5%-4.1%
5.38–6.25 
- 

The Company considers highly liquid investments with a maturity of 90 days or less when purchased to be cash equivalents. Cash and cash

equivalents consisted primarily of cash on deposit in U.S., German, and Canadian banks. Cash and cash equivalents are stated at cost which approximates
fair value.

52

 
 
 
 
 
 
 
 
 
 
 
   
 
 
     
       
 
   
 
 
 
 
 
 
 
 
 
 
 
 
     
 
     
 
   
   
   
   
   
   
 
 
 
Interest Bearing Time Deposits

As of December 31, 2022, the Company held guaranteed investment certificates from a financial institution. The guaranteed investment
certificates had a 12-month term at origination with interest payable at maturity. The Company obtained both the principal amount and accrued interest in
July 2023 upon maturity.

Concentrations of Credit Risk

Financial instruments that potentially subject the Company to credit risk consist primarily of cash and cash equivalents. The Company holds these

investments in highly-rated financial institutions, and limits the amounts of credit exposure to any one financial institution. These amounts at times may
exceed federally insured limits. The Company has not experienced any credit losses in such accounts and does not believe it is exposed to any significant
credit risk on these funds. The Company has no off-balance sheet concentrations of credit risk, such as foreign currency exchange contracts, option
contracts or other hedging arrangements.

Fair Value Measurements

The consolidated financial statements include financial instruments for which the fair value of such instruments may differ from amounts reflected
on a historical cost basis. Financial instruments of the Company consist of cash deposits, time deposits, accounts and other receivables, accounts payable,
and certain accrued liabilities. These financial instruments are held at cost, which generally approximates fair value due to their short-term nature.

The Company follows ASC Topic 820, Fair Value Measurements and Disclosures, which establishes a fair value hierarchy for those instruments

measured at fair value that distinguishes between assumptions based on market date (observable inputs) and the Company’s own assumptions
(unobservable inputs). The hierarchy consists of three levels:

● Level 1—Unadjusted quoted prices in active markets for identical assets or liabilities.

● Level 2—Quoted prices for similar assets and liabilities in active markets, quoted prices in markets that are not active, or inputs which are

observable, either directly or indirectly, for substantially the full term of the asset or liability.

● Level 3—Unobservable inputs that reflect the Company’s own assumptions about the assumptions market participants would use in pricing

the asset or liability in which there is little, if any, market activity for the asset or liability at the measurement date.

At December 31, 2023 and 2022, the Company did not have any assets or liabilities that are measured at fair value on a recurring basis. The

carrying amounts reflected in the consolidated balance sheets for cash and cash equivalents, interest bearing time deposits, prepaid expenses and other
current assets, accounts payable, and accrued expenses approximate their fair values at December 31, 2023 and 2022, due to their short-term nature.

Property and Equipment

Property and equipment, which consists of land, construction in process, furniture and fixtures, computers and office equipment, scientific
equipment, leasehold improvements, vehicles and building are stated at cost and depreciated using the straight-line method over the estimated useful lives
of the assets, with the exception of land and construction in process which are not depreciated. The useful lives are as follows:

●    Furniture and fixtures

7 years

●    Office equipment

5 years

●    Scientific equipment

5 years

●    Vehicles

5 years

●    Mobile facility

27.5 years

●    Building

39 years

53

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Costs of major additions and betterments are capitalized; maintenance and repairs, which do not improve or extend the life of the respective assets,

are charged to expense as incurred. Upon retirement or sale, the cost of the disposed asset and the related accumulated depreciation are removed from the
accounts and the resulting gain or loss is recognized.

Impairment of Long-Lived Assets

The Company periodically evaluates its long-lived assets for potential impairment in accordance with ASC Topic 360, Property, Plant and

Equipment. Potential impairment is assessed when there is evidence that events or changes in circumstances indicate that the carrying amount of an asset
may not be recovered. The recoverability of these assets is assessed based on undiscounted expected future cash flows from the assets, considering a
number of factors, including past operating results, budgets and economic projections, market trends and product development cycles. If impairments are
identified, assets are written down to their estimated fair value. The Company has not recognized any impairment through December 31, 2023.

Foreign Currency Transactions

Certain transactions are denominated in a currency other than the Company’s functional currency of the U.S. dollar, and the Company generates

assets and liabilities that are fixed in terms of the amount of foreign currency that will be received or paid. At each balance sheet date, the Company adjusts
the assets and liabilities to reflect the current exchange rate, resulting in a translation gain or loss. Transaction gains and losses are also realized upon a
settlement of a foreign currency transaction in determining net loss for the period in which the transaction is settled.

Comprehensive Income (Loss)

ASC Topic 220, Comprehensive Income, requires that all components of comprehensive income (loss), including net income (loss), be reported in

the financial statements in the period in which they are recognized. Comprehensive income (loss) is defined as the change in equity during a period from
transactions and other events and circumstances from non-owner sources, including foreign currency translation adjustments.

Segment and Geographic Information

Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by

the chief operating decision maker, or decision-making group, in making decisions on how to allocate resources and assess performance. The Company’s
chief operating decision maker is the Chief Executive Officer. The Company and the chief operating decision maker view the Company’s operations and
manage its business as one operating segment. Substantially all of the Company’s operations are in the U.S. geographic segment.

Net Income/Loss per Share

Net income/loss per share (“EPS”) is computed by dividing net loss by the weighted average number of common shares outstanding during each

period. Diluted EPS is computed by dividing net income/loss by the weighted average number of common shares and common share equivalents
outstanding (if dilutive) during each period. The number of common share equivalents, which include stock options, is computed using the treasury stock
method.

54

 
 
 
 
 
 
 
 
 
 
 
 
 
Recent Accounting Pronouncements

Recently Issued Accounting Pronouncements

In June 2016, the Financial Accounting Standard Board (‘FASB”) issued Accounting Standards Update (“ASU” or “standard”) No. 2016-13,

Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Subsequently, the FASB issued several
clarifying standard updates to clarify and improve the ASU. These ASUs significantly change how entities will measure credit losses for most financial
assets and certain other instruments that are not measured at fair value through net income. The most significant change in this standard is a shift from the
incurred loss model to the expected loss model that will be based on an estimate of current expected credit loss (“CECL”). Under the standard, disclosures
are required to provide users of the financial statements with useful information in analyzing an entity’s exposure to credit risk and the measurement of
credit losses. The Company adopted the standard effective January 1, 2023. The impact of the adoption was not considered material to the consolidated
financial statements.

3. Revenue

On February 2, 2022, the Company announced an addendum to the 2019 Janssen Manufacturing Agreement XBiotech continued to manufacture

Bermekimab for use by Janssen in its clinical trials through November 2022. For the year ended December 31, 2022, the Company recorded $4.0 million of
revenues, under the February 2022 agreement. The agreement was terminated in November 2022.

4. Property and Equipment and Building Construction in Progress         

Property and equipment consisted of the following as of December 31, 2023 and 2022 (in thousands):

Computer and office equipment
Furniture and fixtures
Land
Scientific equipment
Vehicle
Building
Mobile facility
Construction in process
Accumulated depreciation

2023

2022

279    $
129     
1,418     
16,367     
112     
24,173     
189     
469     
(18,239)    
24,897    $

274 
129 
1,418 
16,059 
112 
24,173 
189 
401 
(16,495)
26,260 

  $

  $

Depreciation expenses related to property and equipment amounted to approximately $1.7 million and $2.6 million, for the years ended

December 31, 2023, and 2022, respectively. Construction in process is related to research and development and manufactory equipment. Depreciation
expense is recorded to research and development and general and administrative expense line items on the Consolidated Statements of Operations (in
thousands).

5. Accrued Expenses

Accrued expenses consist of the following as of December 31, 2023, and 2022 (in thousands):

Accrued compensation and related expenses
Accrued professional fees
Accrued clinical trial expenses
Other

55

2023

2022

  $

  $

562    $
52     
2,826     
61     
3,501    $

489 
117 
928 
69 
1,603 

 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
   
 
   
   
   
 
 
6. Common Stock

Pursuant to its Articles, the Company has an unlimited number of shares available for issuance with no par value.

On May 17, 2023, XBiotech announced that it had commenced a “modified Dutch auction” tender offer to purchase up to $80.0 million of its

common shares, or such lesser number of common shares as are properly tendered and not properly withdrawn, at a price not less than $3.80 nor greater
than $4.00 per common share, to the seller in cash.  The tender offer expired on June 15, 2023.

On June 20, 2023, the Company announced the final results of its “modified Dutch Auction” tender offer. The Company accepted for purchase

3,561 shares of its common stock, at a price of $4.00 per share, for an aggregate cost of approximately $14 thousand, excluding fees and expenses related
to the tender offer. These shares represented an immaterial percent of the shares outstanding. The repurchased shares were retired and have been classified
to reduce common stock in the accompanying consolidated balance sheet as of December 31, 2023.

During the year ended December 31, 2023, 1,250 shares of common stock were issued upon the exercise of stock options at a price of $3.84 per

share for total proceeds of $4,800.

No stock options were exercised from January 1, 2022 through December 31, 2022.

7. Common Stock Options

On November 11, 2005, the Board of Directors of the Company adopted the XBiotech Inc. 2005 Incentive Stock Option Plan (the “2005 Plan”),
and on March 24, 2015, the board of directors of the Company adopted the XBiotech Inc. 2015 Equity Incentive Plan (the “2015 Plan”) pursuant to which
the Company may grant incentive stock and non-qualified stock options to directors, officers, employees or consultants of the Company or an affiliate or
other persons as the Compensation Committee may approve.

All options under both Plans will be non-transferable and may be exercised only by the participant, or in the event of the death of the participant, a

legal representative until the earlier of the options’ expiration date or the first anniversary of the participant’s death, or such other date as may be specified
by the Compensation Committee.

The term of the options is at the discretion of the Compensation Committee, but may not exceed 10 years from the grant date. The options expire
on the earlier of the expiration date or the date three months following the day on which the participant ceases to be an officer or employee of or consultant
to the Company, or in the event of the termination of the participant with cause, the date of such termination. Options held by non-employee Directors have
an exercise period coterminous with the term of the options.

The number of common shares reserved for issuance to any one person pursuant to the 2005 Plan shall not, in aggregate, exceed 5% of the total
number of outstanding common shares. The exercise price per common share under each option will be the fair market value of such shares at the time of
the grant. Upon stock option exercise, the Company issues new shares of common stock.

A summary of changes in common stock options issued under the 2005 Plan and under the 2015 Plan is as follows:

56

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Options outstanding at December 31, 2021

Granted
Exercised
Forfeitures

Options outstanding at December 31, 2022

Granted
Exercised
Forfeitures

Options outstanding at December 31, 2023

Options

Exercise Price

4,656,677   

152,600     
-     
(250,375)    
4,558,902   

809,600     
(1,250)    
(327,734)    
5,039,518   

$2.71-$21.74    $
3.65-11.25     
-     
3.27-21.74     
$2.71-$21.74    $
3.38-6.04     
3.84     
3.84-19.09     
$2.71-$21.74    $

Weighted-
Average
Exercise Price

10.68 
7.07 
- 
12.31 
10.47 
4.12 
3.84 
10.43 
9.46 

The weighted average fair value of the options issued to directors, employees and consultants during the fiscal years ended December 31, 2023,
and 2022, was $2.89 and $4.92, respectively. The total intrinsic value of options exercisable and total options outstanding at December 31, 2023 was $2.2
million and $4.1 million. The total intrinsic value of options exercisable and total options outstanding at December 31, 2022 was immaterial. The total fair
value of options vested during the years ended December 31, 2023, and 2022 was $3.5 million, and $5.6 million, respectively.

A summary of the activity in the Company’s nonvested shares is as follows:

Nonvested at January 1,
Granted during the period
Vested during the period
Forfeited during the period
Nonvested at end of period

Year Ended December 31,

2023

2022

Weighted
Average
Granted
Date Fair
Value

8.25     
2.89     
6.17     
5.14     
2.40     

Weighted
Average
Granted
Date Fair
Value

8.59 
4.92 
7.86 
9.40 
8.25 

Shares

1,131,458     
152,600     
(716,491)    
(137,617)    
429,950     

Shares

429,950     
809,600     
(569,100)    
(98,025)    
571,925     

As of December 31, 2023, there was approximately $1.4 million of unrecognized compensation cost, related to stock options granted under the

Plan which will be amortized to stock compensation expense over the next 1.1 years. The weighted-average remaining contractual term of outstanding
options as of December 31, 2023 is 5.39 years. Total exercisable stock options as of December 31, 2023 is 4.5 million. The weighted-average exercise price
of options exercisable as of December 31, 2023 is $10.07 per share and the weighted-average remaining contractual term is 4.93 years.

8. Net Loss Per Share

The following summarizes the computation of basic and diluted net income(loss) per share for the years ended December 31, 2023, and 2022 (in

thousands, except share and per share data):

Net loss
Weighted-average number of common shares—basic
Net loss per share—basic
Weighted-average number of common shares—diluted
Net loss per share—diluted

57

Year Ended December 31,
2022
2023

  $

  $

  $

(24,557)   $
30,438,459     
(0.81)   $
30,438,459     
(0.81)   $

(32,900)
30,439,275 
(1.08)
30,439,275 
(1.08)

 
 
 
 
   
   
 
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
   
 
 
 
   
   
   
 
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
   
 
   
   
 
The following potentially dilutive securities outstanding, prior to the use of the treasury stock method or if-converted method, have been excluded

from the computation of diluted weighted-average common shares outstanding, because including them would have had an anti-dilutive effect due to the
losses reported.

Stock options

9. Income Taxes

The components of income before income taxes are as follows (in thousands):

United States
Foreign
Total

Year Ended December 31,
2022
2023

5,039,518     

4,558,902 

Years Ended December 31,
2022
2023

  $

  $

(27,144)   $
2,831     
(24,313)   $

(28,161)
(5,427)
(33,588)

The components of the provision for income taxes are as follows for the years ended December 31, 2023, and 2022 (in thousands):

Current

United States
Foreign
Total
Deferred

United States
Foreign
Total

Total income tax expense (benefit)

2023

2022

130    $
173     
303     

-     
(59)    
(59)    

244    $

457 
(329)
128 

- 
(816)
(816)

(688)

  $

  $

The provision for income taxes differs from the amount computed by applying the Canada statutory rate to pre-tax income as follows for the years

ended December 31, 2023, and 2022:

58

 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
   
 
   
   
     
       
 
   
   
   
 
     
       
 
 
 
Income tax benefit computed at federal tax rate
Foreign operations
Change in valuation allowance
Tax credits generated
Prior year adjustments
Changes in uncertain tax positions
Foreign exchange gain and loss
Stock compensation
Non-deductible compensation
Foreign Liquidation
Other

Total

2023

2022

27.0%    
(5.4)%   
(26.1)%   
8.6%    
(2.3)%   
(0.4)%   
2.1%    
(2.4)%   
(6.8)%   
4.5%    
0.3%    
)
%    
(1.0

27.0%
(4.1)%
(14.6)%
3.5%
0.4%
(0.3)%
(1.6)%
(2.3)%
(5.8)%
0.0%
(0.2)%

2.0%

The effective tax rate for the year ended December 31, 2023 varied from the Canadian statutory rate primarily due to losses in jurisdictions for

which a valuation allowance is recorded and a benefit may not be recognized. The effective tax rate for the year ended December 31, 2022 varied from the
Canadian statutory rate primarily due to losses in jurisdictions for which a valuation allowance is recorded and a benefit may not be recognized, a shift in
income between jurisdictions related to certain transfer pricing adjustments which impacted the benefit associated with available loss carrybacks, and non-
deductible compensation.

The tax effect of temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax

bases that give rise to deferred tax assets and liabilities is as follows:

Net operating loss carryforwards
Research and other credits
Stock based compensation
Capitalized research expenses
Share issuance costs
Accrued liabilities
Foreign exchange
Deferred tax assets before valuation allowance
Valuation allowance
Deferred tax assets

Depreciation
Prepaid assets
Uncollectible debts
Deferred tax liability
Net deferred tax asset (liability)

2023

2022

  $

  $

1,288    $
5,851     
2,530     
7,800     
39     
696     
-     
18,204     
(17,576)    
628     

535     
93     
-     
628     
-    $

- 
3,820 
2,703 
5,210 
229 
294 
687 
12,994 
(11,225)
1,719 

710 
93 
975 
1,777 
(59)

For the year ended December 31, 2023, the Company has a USA federal net operating loss carryforward of $6.2M which will carryforward

indefinitely. The Company has $6.6M of USA federal research and development tax credits carryforwards which are presented in the financial statements
net of $1.4M of related uncertain tax positions, which will begin to expire in 2037. In addition, the Company has $0.8M of Texas research and development
tax credits carryforwards which are presented in the financial statements net of $0.2M of related uncertain tax positions, which will begin to expire in 2042.
Also, after weighing all available and positive and negative evidence the Company determined a full valuation allowance for all jurisdictions was
necessary.

For the year ended December 31, 2023, the Company has not recorded any outside basis difference deferreds given its intention to indefinitely

reinvest earnings from its foreign operations. In addition, given the Company's estimated outside tax basis in its USA investment is in excess of book basis,
there is no unrecognized deferred tax liability.

59

 
 
 
 
 
 
 
 
     
 
     
 
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
   
 
   
   
   
   
   
   
   
   
   
 
     
       
 
   
   
   
   
 
 
 
The Company is subject to income tax in multiple jurisdictions, including Canada, USA, and the state of Texas. The Company has Canadian,
USA, and Texas income tax returns that are open to examination for the 2020, 2020, and 2019 tax years, respectively. In addition, the utilization of tax
carryforwards, from periods prior to those previously mentioned may also be audited by the taxing authorities once utilized. As a result, the Company
continuously monitors its current and prior filing positions in order to determine if any unrecognized tax positions need to be recorded. The analysis
involves considerable judgement and is based on the best information available. A reconciliation of the beginning and ending amount of unrecognized tax
benefits as of December 31, 2023 and 2022 are as follows (in thousands):

Balance as of January 1
Additions based on tax positions related to the current year
Additions for tax positions of prior years
Reductions for tax positions of prior years
Settlements & statute of limitations
Balance at December 31

2023

2022

  $

  $

2,864    $
389     
260     
(4)    
(536)    
2,973    $

2,389 
130 
346 
- 
- 
2,864 

The Company recognized interest and penalties related to unrecognized tax benefits of $93 thousand and $63 thousand as a component of income
tax expense for the years ended December 31, 2023 and 2022, respectively. As of December 31, 2023 and 2022, there are $1.7M and $1.6M, respectively,
of unrecognized tax benefits that if recognized would affect the annual effective tax rate. In addition, it is reasonably possible that approximately $0.1M of
the unrecognized tax benefits may be recognized in the next 12 months as a result of a lapse of the statute of limitations. No other positions are expected to
significantly decrease within the next 12 months.

10. Subsequent Event

On January 3, 2024, the Company entered into a Convertible Loan Agreement (the “Loan”) with John Simard, the Company’s Founder, President,

Chief Executive Officer and Chairman. The Loan provides $10 million in immediate funding for the construction of a new, state-of-the-art research and
development facility at the Company's property at 5217 Winnebago Lane in Austin, Texas. The Loan is secured by the real estate and cash holdings of the
Company, with interest to accrue at a simple rate equal to eight percent per year and interest-only payments to be made at six-month intervals after the
Loan is funded. At Mr. Simard’s election, the balance may be converted to XBiotech stock at any time the Loan balance is outstanding at a fixed
conversion price equal to the average Nasdaq Official Closing Price of the common stock (as reflected on Nasdaq.com) for the five trading days
immediately preceding the signing of this Agreement, which is $4.048 per share. The conversion feature is subject to a 19.9% cap limiting the number of
shares that could be converted under the Agreement based on Mr. Simard’s total stock ownership in the Company at the time of conversion. The Loan also
allows Mr. Simard to obtain immediate cash repayment of the Loan balance at his election one year after the loan is funded or upon certain other conditions
set forth in the Loan. The Loan was negotiated, evaluated, and approved on behalf of the Company by a committee of independent and disinterested
directors.  

11. Selected Quarterly Financial Data (Unaudited)

Selected Quarterly Financial Data (Unaudited) for the years ended December 31, 2023 and 2022 is presented below (in thousands except per share

data):

60

 
 
 
 
 
   
 
   
   
   
   
 
 
 
 
 
 
 
 
2023
Loss from operations
Net loss
Net loss per share—basic and diluted

2022
Loss from operations
Net loss
Net loss per share—basic and diluted

  First Quarter    
  $

(7,145)   $
(3,816)    
(0.13)    

Second
Quarter

Third
Quarter

Fourth
Quarter

(13,258)   $
(8,742)    
(0.29)    

(8,520)   $
(7,364)    
(0.24)    

(8,588)
(4,635)
(0.15)

  First Quarter    
  $

(7,845)   $
(5,395)    
(0.18)    

Second
Quarter

Third
Quarter

Fourth
Quarter

(12,094)   $
(11,644)    
(0.38)    

(6,389)   $
(12,658)    
(0.42)    

(8,162)
(3,203)
(0.10)

ITEM  9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM  9A. CONTROLS AND PROCEDURES.

Management's Evaluation of our Disclosure Controls and Procedures

As of the end of the year covered by this Annual Report on Form 10-K, an evaluation was carried out by the Company’s management, with the

participation of the Chief Executive Officer and Principal Financial Officer, of the effectiveness of the Company’s disclosure controls and procedures, as
defined in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934. Based on such evaluation, the Chief Executive Officer and Principal
Financial Officer concluded that the Company’s disclosure controls and procedures are effective to ensure that information required to be disclosed in the
reports the Company files or furnishes under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported within the time periods
specified in the SEC’s rules and regulations, and are operating in an effective manner.

Management’s Annual Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rule 13a-15(f)

under the Exchange Act). We conducted an assessment of the effectiveness of our internal control over financial reporting based on the criteria set forth in
Internal Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework). Based on
our assessment, we have concluded that our internal control over financial reporting was effective as of December 31, 2023, to provide reasonable
assurance regarding the reliability of financial reporting and the preparation of financial statements in accordance with GAAP.

Changes in Internal Control Over Financial Reporting

There was no change in our internal control over financial reporting that occurred during the year ended December 31, 2023 that has materially

affected, or is reasonably likely to materially affect, our internal control over financial reporting.

61

 
 
   
   
 
   
   
 
 
   
   
 
   
   
 
 
 
 
 
 
 
 
 
 
 
Limitations on Effectiveness of Controls and Procedures

In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well
designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and
procedures must reflect the fact that there are resource constraints, and that management is required to apply judgment in evaluating the benefits of possible
controls and procedures relative to their costs.

ITEM  9B. OTHER INFORMATION

None.

ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

None.

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

PART III

We incorporate by reference the information required by this Item with respect to directors and the Audit Committee from the information under

the caption “ELECTION OF DIRECTORS,” including in particular the information under “Nominating and Corporate, Governance and Review
Committee” , “Audit Committee”, “Report of the Audit Committee & the Board of Directors”, “Code of Ethics” and “Delinquent Section 16(a) Reports”
and “EXECUTIVE OFFICERS” contained in our definitive Proxy Statement (the “Proxy Statement”), which we will file on or about April 28, 2024 with
the Securities and Exchange Commission in connection with the solicitation of proxies for our 2024 Annual Meeting of Stockholders to be held on June 23,
2024.

ITEM 11. EXECUTIVE COMPENSATION

The information required by this item is incorporated herein by reference to the information contained under the sections captioned “EXECUTIVE
COMPENSATION”, “DIRECTOR COMPENSATION”, “Compensation Committee Interlocks and Insider Participation,” “Employment Arrangements”
and “Compensation Committee Report” of the Proxy Statement.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER
MATTERS

The information required by this item will be set forth under the heading “Security Ownership of Certain Beneficial Owners and Management" in

our Proxy Statement and is incorporated herein by reference.

The information required by Item 201(d) of Regulation S-K will be set forth in the section headed “Equity Compensation Plan Information” in our

Proxy Statement and is incorporated herein by reference.

62

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE

The information required by this item will be set forth in the section headed “Transactions with Related Persons” in our Proxy Statement and is

incorporated herein by reference.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES

The information required by this item will be set forth in the section headed “Ratification of Selection of Independent Registered Public

Accounting Firm” in our Proxy Statement and is incorporated herein by reference.     

63

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

Financial Statements

See Index to Consolidated Financial Statements under Item 8 of Part II.

PART IV

Financial Statement Schedules

None

EXHIBIT INDEX

Exhibit
Number

2.1†

3.1

3.2

3.3

4.1

10.1+

10.2+

10.3

10.4+

  Description

  Asset Purchase Agreement, dated as of December 7, 2019, between XBiotech Inc. and Janssen Biotech, Inc. (incorporated by reference
to Exhibit 2.1 to the Company’s Current Report on Form 8-K filed on December 30, 2019)

  Certificate of Continuation dated September 23, 2005, issued by the Registrar of Companies, Province of British Columbia, Canada
(incorporated by reference to Exhibit 3.1 to the Company’s Registration Statement on Form S-1 filed with the SEC on February 2,
2015)

  Notice of Articles, dated December 8, 2005, issued by the Registrar of Companies, Province of British Columbia, Canada (incorporated
by reference to Exhibit 3.2 to the Company’s Registration Statement on Form S-1 filed with the SEC on February 2, 2015)

  Articles of XBiotech Inc. (incorporated by reference to Exhibit 3.3 to the Company’s Registration Statement on Form S-1/A filed with
the SEC on March 27, 2015)

  Description of Registrant’s securities registered pursuant to Section 12 of the Securities Exchange Act of 1934(incorporated by
reference to Exhibit 4.1 to the Annual Report on Form 10-K filed with the SEC on March 15, 2022)

  Executive Employment Agreement dated as of March 22, 2005 between XBiotech and John Simard (incorporated by reference to
Exhibit 10.1 to the Company’s Registration Statement on Form S-1 filed with the SEC on February 2, 2015)

  Change in Control Agreement dated as of March 22, 2005 between XBiotech and John Simard (incorporated by reference to Exhibit
10.2 to the Company’s Registration Statement on Form S-1 filed with the SEC on February 2, 2015)

  Confidentiality and Assignment of Inventions Agreement dated as of March 22, 2005 between XBiotech and John Simard (incorporated
by reference to Exhibit 10.3 to the Company’s Registration Statement on Form S-1 filed with the SEC on February 2, 2015)

  XBiotech 2005 Incentive Stock Option Plan (Restated) (incorporated by reference to Exhibit 4.4 to the Company’s Registration
Statement on Form S-8 filed with the SEC on October 19, 2015)

64

 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
10.5+

  Form of indemnification agreement between XBiotech and each director of XBiotech (incorporated by reference to Exhibit 10.5 to the

Company’s Registration Statement on Form S-1 filed with the SEC on February 2, 2015)

10.6

  Licensing Agreement dated January 16, 2015 between XBiotech USA, Inc. and Lonza Sales AG (portions of this exhibit have been

omitted pursuant to a request for confidential treatment under Rule 406 of the Securities Act. incorporated by reference to Exhibit 10.9
to the Company’s Registration Statement on Form S-1/A filed with the SEC on March 10, 2015)

10.7

  Research and Collaboration Agreement dated December 15, 2014 by and between XBiotech USA, Inc. and the South Texas Blood &

Tissue Center (portions of this exhibit have been omitted pursuant to a request for confidential treatment under Rule 406 of the Securities
Act of 1933. incorporated by reference to Exhibit 10.10 to the Company’s Registration Statement on Form S-1/A filed with the SEC on
March 10, 2015)

10.8+

  XBiotech Inc. 2015 Equity Incentive Plan (incorporated by reference to Exhibit 10.11 to the Company’s Registration Statement on Form

S-1/A filed with the SEC on March 10, 2015)

10.9+

  Form of Incentive Share Option Agreement under the 2015 Equity Incentive Plan (incorporated by reference to Exhibit 10.9 to the

Annual Report on Form 10-K filed with the SEC on March 15, 2023)

10.10+

  Form of Nonqualified Share Option Agreement under the 2015 Equity Incentive Plan (incorporated by reference to Exhibit 10.10 to the

Annual Report on Form 10-K filed with the SEC on March 15, 2023)

10.11+

10.12+

10.13+*

10.14+*

10.15+

10.16†

10.17†

10.18†

Second Amendment to the XBiotech Inc. 2015 Equity Incentive Plan (incorporated by reference to Annex A to the Registrant’s
Definitive Proxy Statement on Schedule 14A filed on April 29, 2020)

Third Amendment to the XBiotech Inc. 2015 Equity Incentive Plan (incorporated by reference to Annex B to the Registrant’s Definitive
Proxy Statement on Schedule 14A filed on April 29, 2020)

Board Member Agreement, dated as of February 27, 2018, by and between XBiotech Inc. and Jan-Paul Waldin.(incorporated by
reference to Exhibit 10.13 to the Annual Report on Form 10-K filed with the SEC on March 15, 2023)

Board Member Agreement, dated as of March 20, 2018, by and between XBiotech Inc. and Donald H. MacAdam.(incorporated by
reference to Exhibit 10.14 to the Annual Report on Form 10-K filed with the SEC on March 15, 2023)

Board Member Agreement, dated as of July 10, 2019, by and between XBiotech Inc. and Peter Libby (incorporated by reference to
Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on July 16, 2019)

IP Non-Assertion and License Agreement, dated as of December 30, 2019, between XBiotech Inc. and Janssen Biotech, Inc.
(incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on December 30, 2019)

Clinical Manufacturing Agreement, dated as of December 30, 2019, between XBiotech Inc. and Janssen Biotech, Inc. (incorporated by
reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on July 16, 2019)

Transition Services Agreement, dated as of December 30, 2019, between XBiotech Inc. and Janssen Biotech, Inc. (incorporated by
reference to Exhibit 10.3 to the Registrant’s Current Report on Form 8-K filed on July 16, 2019)

65

 
 
 
   
 
   
 
   
 
   
 
   
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
21.1*

  List of subsidiaries

23.1*

  Consent of Independent Registered Public Accounting Firm, Whitley Penn LLP

31.1*

31.2*

32.1**

32.2**

Certification of the Principal Executive Officer Required Under Rules 13a-14(a) and 15d-14(a) of the Securities Act of 1934, as
amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Certification of the Principal Financial Officer Required Under Rules 13a-14(a) and 15d-14(a) of the Securities Act of 1934, as
amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Certification of Chief Executive Officer pursuant to18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002

Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002

97

  XBiotech Inc. Clawback Policy

101*

The following financial statements from the XBiotech Inc. Annual Report on Form 10-K for the year ended December 31, 2023,
formatted in Inline Extensive Business Reporting Language (XBRL): (i) consolidated balance sheets, (ii) consolidated statements of
operations, (iii) consolidated statements of comprehensive loss, (iv) consolidated statements of shareholders’ equity; (v) consolidated
statements of cash flows and (vi) notes to consolidated financial statements (detail tagged).  

104*

  Cover Page Interactive Data File (embedded within the inline iXBRL document and contained in Exhibit 101).

†

+
*
**

Certain identified information has been excluded from this exhibit because the Company does not believe it is material and is the type
that the Company customarily treats as private and confidential. Redacted information is indicated by [*****]. The Company hereby
agrees to furnish a copy of any omitted schedule or attachment to the Securities and Exchange Commission upon request.

  Indicates management contract or compensatory plan
  Filed herewith

Exhibits 32.1 and 32.2 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise
subject to the liability of that Section. Such exhibits shall not be deemed incorporated by reference into any filing under the Securities
Act of 1933 or the Securities Exchange Act of 1934.

ITEM 16.         FORM 10–K SUMMARY

Not applicable.

66

 
 
 
   
 
   
 
 
   
 
 
   
 
 
   
 
 
   
 
   
 
 
   
 
   
 
 
 
 
 
 
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its
behalf by the undersigned, thereunto duly authorized on March 15, 2024.

SIGNATURES

XBIOTECH INC.,

/s/ JOHN SIMARD

Name: John Simard
Title:   President and Chief Executive Officer  

(Principal Executive Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons on behalf of the registrant and in
the capacities and on the dates indicated.

Signature and Title

/s/ JOHN SIMARD

Date

March 15, 2024

John Simard, Chief Executive Officer (Principal Executive Officer) and
Director

Angela Hu, Principal Financial Officer and Principal Accounting Officer

/s/ ANGELA HU

March 15, 2024

W. Thorpe McKenzie, Director

 /s/ W. THORPE MCKENZIE

 March 15, 2024

Jan-Paul Waldin, Director

 /s/ JAN-PAUL WALDIN

 March 15, 2024

 /s/ DONALD MACADAM

 March 15, 2024

Donald MacAdam, Director

Peter Libby, Director

/s/ PETER LIBBY

 March 15, 2024

67

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
LIST OF SUBSIDIARIES

Name

XBiotech USA, Inc.
(Delaware)
XBiotech Germany GmbH

 Country

United States

 Germany

Exhibit 21.1

 
 
 
 
 
 
 
 
 
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We  consent  to  the  incorporation  by  reference  in  the  Registration  Statements  on  Form  S-8  (File  Nos.  333-207476  and  333-249288)  of  our  report  dated
March  15,  2024  relating  to  the  consolidated  financial  statements  of  XBiotech  Inc.  and  subsidiaries  appearing  in  this  Annual  Report  on  Form  10-K  of
XBiotech Inc. and subsidiaries for the year ended December 31, 2023.

Exhibit 23.1

/s/ Whitley Penn LLP
Austin, Texas
March 15, 2024

 
 
Exhibit 31.1

I, John Simard, certify that:

1.

I have reviewed this annual report on Form 10-K of XBiotech Inc.;

CERTIFICATIONS

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this
report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the

financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in

Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))
for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to
materially affect, the registrant’s internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably

likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control

over financial reporting.

Date:   March 15, 2024

/s/ John Simard
John Simard
Chief Executive Officer and President
(Principal Executive Officer)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 31.2

I, Angela Hu, certify that:

1.

I have reviewed this annual report on Form 10-K of XBiotech Inc.;

CERTIFICATIONS

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this
report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the

financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in

Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))
for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to
materially affect, the registrant’s internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably

likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control

over financial reporting.

Date:  March 15, 2024

/s/Angela Hu
Angela Hu
 Director of Finance
(Principal Financial Officer)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION PURSUANT TO  18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of XBiotech Inc. on Form 10-K for the period ended December 31, 2023 as filed with the Securities and Exchange
Commission on the date hereof (the “Report”), I, John Simard, Chief Executive Officer and President of the Company, certify, pursuant to 18 U.S.C. §1350,
as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of XBiotech Inc.

Exhibit 32.1

/s/ JOHN SIMARD
John Simard
Chief Executive Officer and President
(Principal Executive Officer)
Date:  March 15, 2024

 
 
 
 
 
 
 
 
CERTIFICATION PURSUANT TO  18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of XBiotech Inc. on Form 10-K for the period ended December 31, 2023 as filed with the Securities and Exchange
Commission on the date hereof (the “Report”), I, Angela Hu, Principal Financial Officer and Principal Accounting Officer of the Company, certify,
pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of XBiotech Inc.

Exhibit 32.2

/s/ Angela Hu
Angela Hu
Director of Finance
(Principal Financial Officer)
Date:  March 15, 2024

 
 
 
 
 
 
 
XBIOTECH INC.
CLAWBACK POLICY

EXHIBIT 97

Definitions

For purposes of this policy, the following definitions shall apply:

●             “Accounting Restatement” means an accounting restatement due to the material noncompliance of the Company with any financial reporting
requirement under the securities laws, including any required accounting restatement to correct an error in previously issued financial statements that is
material to the previously issued financial statements or that would result in a material misstatement if the error were corrected in the current period or left
uncorrected in the current period.

●         “Erroneously Awarded Compensation” means the amount of Incentive-Based Compensation Received by an Executive Officer that exceeds the
amount of Incentive-Based Compensation that otherwise would have been Received had it been determined based on the restated amounts, which amount
must be computed without regard to any taxes paid by such Executive Officer.

●           “Executive Officer” means the Company’s president, chief executive officer, principal financial officer, principal accounting officer (or if there is
no such accounting officer, the controller), any vice-president of the issuer in charge of a principal business unit, division or function, any other officer who
performs a policy-making function, or any other person who performs similar policy-making functions for the issuer. Executive Officers for purposes of
this policy includes, at a minimum, such executive officers identified as such in the Company’s Annual Report on Form 10-K.

●          “Financial Reporting Measure” are measures that are determined and presented in accordance with the accounting principles used in preparing the
Company’s financial statements, and any measures that are derived wholly or in part from such measures. Stock price and total shareholder return are also
Financial Reporting Measures. A Financial Reporting Measure need not be presented within the financial statements or included in a filing with the U.S.
Securities and Exchange Commission.

●              “Incentive-Based Compensation” means any compensation that is granted, earned or vested based wholly or in part upon the attainment of any
Financial Reporting Measure.

●              “Received” with respect to Incentive-Based Compensation means the fiscal period during which the Financial Reporting Measure specified in the
Incentive-Based Compensation award is attained, even if the payment or grant of the Incentive-Based Compensation occurs after the end of that period.

●                           “Recovery  Period”  means  the  three  (3)  completed  fiscal  years  immediately  preceding  the  date  that  the  Company  is  required  to  prepare  an
Accounting Restatement, which date is the earlier to occur of (a) the date the Board, a committee of the Board, or the officer or officers of the Company
authorized to take such action if Board action is not required, concludes, or reasonably should have concluded, that the Company is required to prepare an
Accounting Restatement or (b) the date a court, regulator or other legally authorized body directs the Company to prepare an Accounting Restatement. In
addition  to  these  last  three  (3)  completed  fiscal  years,  the  Recovery  Period  also  applies  to  any  transition  period  (that  results  from  a  change  in  the
Company’s fiscal year) within or immediately following those three (3) completed fiscal years. However, a transition period between the last day of the
Company’s previous fiscal year end and the first day of its new fiscal year that comprises a period of nine (9) to twelve (12) months would be deemed a
completed fiscal year.

 
 
 
 
 
 
 
 
 
 
 
Policy Statement

In  the  event  the  Company  is  required  to  prepare  an  Accounting  Restatement,  then  the  Company  will  recover  reasonably  promptly  the  amount  of
Erroneously Awarded Compensation that is Received by any current or former Executive Officer during the Recovery Period.

Additionally,  the  Board,  in  its  sole  discretion  and  subject  to  applicable  law,  may  seek  to  recover  Incentive-Based  Compensation  or  discretionary
compensation Received by any current or former Executive Officer during the Recovery Period in the event that such Executive Officer willfully engaged
in conduct which is demonstrably or materially injurious to the Company, monetarily or otherwise.

Exceptions

The Company will not be required to enforce this policy to the extent that the Compensation Committee (the “Committee”) of the Board determines that (i)
recovery would be impracticable and (ii) one of the conditions of (A), (B), or (C) are satisfied:

(A)         The direct expense paid to a third party to assist in enforcing this policy would exceed the amount to be recovered; provided, before concluding
that it would be impracticable to recover any amount of Erroneously Awarded Compensation based on expense of enforcement, the Company has made a
reasonable attempt to recover such amounts, documented such reasonable attempt(s) to recover, and provided that documentation to NASDAQ.

(B)         Recovery would violate home country law where that law was adopted prior to November 28, 2022; provided, that before concluding that it would
be  impracticable  to  recover  any  amount  of  Erroneously  Awarded  Compensation  based  on  violation  of  home  country  law,  the  Company  must  obtain  an
opinion of home country counsel, acceptable to NASDAQ, that recovery would result in such a violation, and must provide such opinion to NASDAQ.

(C)         Recovery would likely cause an otherwise tax-qualified retirement plan, under which benefits are broadly available to the Company’s employees,
to fail to meet the requirements of the Internal Revenue Code of 1986, as amended.

Prohibition on Indemnity or Reimbursement

The  Company  is  prohibited  from  indemnifying  any  current  or  former  Executive  Officer  against  the  loss  of  any  Erroneously  Awarded  Compensation  or
paying or reimbursing such Executive Officers for insurance premiums to recover losses incurred under this policy.