Quarterlytics / Healthcare / Biotechnology / Arbutus Biopharma Corporation

Arbutus Biopharma Corporation

abus · NASDAQ Healthcare
Claim this profile
Ticker abus
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Employees 44
← All annual reports
FY2021 Annual Report · Arbutus Biopharma Corporation
Sign in to download
Loading PDF…
UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

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

For the Fiscal Year Ended December 31, 2021 

or 

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

For the Transition Period from            to

Commission File Number: 001-34949 
Arbutus Biopharma Corporation
(Exact Name of Registrant as Specified in Its Charter)

British Columbia, Canada
(State or Other Jurisdiction of
Incorporation or Organization)

98-0597776
(I.R.S. Employer
Identification No.)

701 Veterans Circle
Warminster
PA
18974
(Address of Principal Executive Offices)

267-469-0914

 (Registrant’s Telephone Number, Including Area Code)

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

Title of Each Class
Common shares, without par value

Trading Symbol(s)
ABUS

Name of Each Exchange on Which Registered
The Nasdaq Stock Market LLC

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

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

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 o No x

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 x No o

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 during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No o

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

☐

☐

☒

☒

☐

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

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

As of June 30, 2021, the last business day of the registrant’s most recently completed second fiscal quarter, the approximate aggregate market value of
voting and non-voting common equity held by non-affiliates of the registrant was $238,483,586 based on the closing price of $3.03 per share as reported on
the Nasdaq Global Select Market as of that date).

As of March 3, 2022, the registrant had 148,641,736 common shares, without par value, outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions  of  the  registrant’s  definitive  proxy  statement  for  its  2022  Annual  Meeting  of  Shareholders,  which  the  registrant  intends  to  file  pursuant  to
Regulation  14A  with  the  Securities  and  Exchange  Commission  no  later  than  120  days  after  the  registrant’s  fiscal  year  ended  December  31,  2021,  are
incorporated by reference into Part III of this Form 10-K.

2

ARBUTUS BIOPHARMA CORPORATION

TABLE OF CONTENTS

Cautionary Note Regarding Forward-looking Statements
Risk Factors Summary

PART I

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

PART II

Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.
Item 9C.

PART III

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

PART IV

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

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

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

Item 15.

Exhibits and Financial Statement Schedules

Page
4
6

9
9
35
56
56
56
56

58
58
58
59
68
69
99
99
99
100

101
101
101
101
101
101

102
102

3

 
 
 
 
 
 
 
 
 
 
 
 
Cautionary Note Regarding Forward-looking Statements

This  Annual  Report  on  Form  10-K  (this  “Form  10-K”)  contains  “forward-looking  statements”  or  “forward-looking  information”  within  the  meaning  of
applicable United States and Canadian securities laws (we collectively refer to these items as “forward-looking statements”). Forward-looking statements
are  generally  identifiable  by  use  of  the  words  “believes,”  “may,”  “plans,”  “will,”  “anticipates,”  “intends,”  “budgets,”  “could,”  “estimates,”  “expects,”
“forecasts,” “projects” and similar expressions that are not based on historical fact or that are predictions of or indicate future events and trends, and the
negative of such expressions. Forward-looking statements in this Form 10-K, including the documents incorporated by reference, include statements about,
among other things:

•
•

•

•

•

•

•

•

•

•

•

•

•

•
•
•

our strategy, future operations, pre-clinical research, pre-clinical studies, clinical trials, prospects and the plans of management;
the potential for our product candidates to achieve their desired or anticipated outcomes;

the expected cost, timing and results of our clinical development plans and clinical trials, including our clinical collaborations with third parties;

the potential impact of the COVID-19 pandemic on our business and clinical trials;

the  discovery,  development  and  commercialization  of  a  curative  combination  regimen  for  chronic  hepatitis  B  infection,  a  disease  of  the  liver
caused by the hepatitis B virus (“HBV”);

the  potential  of  our  product  candidates  to  improve  upon  the  standard  of  care  and  contribute  to  a  functional  curative  combination  treatment
regimen;

obtaining necessary regulatory approvals;

obtaining adequate financing through a combination of financing activities and operations;

the potential for us to discover and/or develop new molecular entities for treating coronaviruses, including COVID-19;

the expected returns and benefits from strategic alliances, licensing agreements, and research collaborations with third parties;

our expectations regarding our technology licensed to third parties, and the timing thereof;

our anticipated revenue and expense fluctuation and guidance;

our expectations regarding the timing of announcing data from our ongoing clinical trials

our expectations regarding current patent disputes and litigation;

our expectation of a net cash burn between $90.0 million and $95.0 million in 2022; and

our belief that we have sufficient cash resources to fund our operations into the second quarter of 2024,

as well as other statements relating to our future operations, financial performance or financial condition, prospects or other future events. Forward-looking
statements appear primarily in the sections of this Form 10-K entitled “Item 1-Business,” “Item 1A-Risk Factors,” “Item 7-Management’s Discussion and
Analysis of Financial Condition and Results of Operations,” “Item 7A-Quantitative and Qualitative Disclosures About Market Risk,” and “Item 8-Financial
Statements and Supplementary Data.”

Forward-looking statements are based upon current expectations and assumptions and are subject to a number of known and unknown risks, uncertainties
and other factors that could cause actual results to differ materially and adversely from those expressed or implied by such statements. Factors that could
cause  or  contribute  to  such  differences  include,  but  are  not  limited  to,  those  discussed  in  this  Form  10-K  and  in  particular  the  risks  and  uncertainties
discussed under “Item 1A-Risk Factors” of this Form 10-K. As a result, you should not place undue reliance on forward-looking statements.

Additionally, the forward-looking statements contained in this Form 10-K represent our views only as of the date of this Form 10-K (or any earlier date
indicated in such statement). While we may update certain forward-looking statements from time to time, we specifically disclaim any obligation to do so,
even if new information becomes available in the future. However, you are advised to consult any further disclosures we make on related subjects in the
periodic and current reports that we file with the Securities and Exchange Commission.

4

The foregoing cautionary statements are intended to qualify all forward-looking statements wherever they may appear in this Form 10-K. For all forward-
looking statements, we claim protection of the safe harbor for the forward-looking statements contained in the Private Securities Litigation Reform Act of
1995.

This  Form  10-K  also  contains  estimates,  projections  and  other  information  concerning  our  industry,  our  business,  and  the  markets  for  certain  diseases,
including data regarding the estimated size of those markets, and the incidence and prevalence of certain medical conditions. Information that is based on
estimates, forecasts, projections, market research or similar methodologies is inherently subject to uncertainties and actual events or circumstances may
differ materially from events and circumstances reflected in this information. Unless otherwise expressly stated, we obtained this industry, business, market
and  other  data  from  reports,  research  surveys,  studies  and  similar  data  prepared  by  market  research  firms  and  other  third  parties,  industry,  medical  and
general publications, government data and similar sources.

5

Risk Factors Summary

The following is a summary of the principal risks that could adversely affect our business, operations and financial results. For more information, see “Item
1A. Risk Factors” in this Annual Report on Form 10-K for the year ended December 31, 2021.

Risks Related to Our Business, Our Financial Results and Need for Additional Capital

• We are in the early stages of our development, and there is a limited amount of information about us upon which you can evaluate our product

candidates.

• We  will  require  substantial  additional  capital  to  fund  our  operations.  Additional  funds  may  be  dilutive  to  shareholders  or  impose  operational
restrictions.  Further,  if  additional  capital  is  not  available,  we  may  need  to  delay,  limit  or  eliminate  our  research,  development  and
commercialization programs and modify our business strategy.

• We have incurred losses in nearly every year since our inception and we anticipate that we will not achieve profits for the foreseeable future. To

date, we have had no product revenues, and we may never be profitable.

•

The COVID-19 coronavirus could adversely impact our business, including our clinical development plans.

Risks Related to Development, Clinical Testing, Regulatory Approval, Marketing, and Coverage and Reimbursement of our Product Candidates

• Our  product  candidates  are  in  early  stages  of  development  and  must  go  through  clinical  trials,  which  are  very  expensive,  time-consuming  and
difficult to design and implement. The outcomes of clinical trials are uncertain, and delays in the completion of or the termination of any clinical
trial of our product candidates could harm our business, financial condition and prospects.

•

•

•

Pre-clinical studies and preliminary and interim data from clinical trials of our product candidates are not necessarily predictive of the results or
success  of  ongoing  or  later  clinical  trials  of  our  product  candidates.  If  we  cannot  replicate  the  results  from  our  pre-clinical  studies  and  initial
clinical  trials  of  our  product  candidates  in  later  clinical  trials,  we  may  be  unable  to  successfully  develop,  obtain  regulatory  approval  for  and
commercialize our product candidates.

Because  we  have  limited  resources,  we  may  decide  to  pursue  a  particular  product  candidate  and  fail  to  advance  product  candidates  that  later
demonstrate a greater chance of clinical and commercial success.

Several of our current pre-clinical studies and clinical trials are being conducted outside the United States, and the United States Food and Drug
Administration (the “FDA”) may not accept data from trials conducted in locations outside the United States.

• We cannot guarantee how long it will take regulatory agencies to review our applications for product candidates, and we may fail to obtain the

necessary regulatory approvals to market our product candidates.

•

If a particular product candidate causes undesirable side effects, then we may be unable to receive regulatory approval of or commercialize such
product candidate.

• We may find it difficult to enroll patients in our clinical trials, which could delay or prevent our clinical trials.
•

Several  of  our  and  our  collaboration  partner’s  clinical  trials  have  been  impacted  and  could  be  delayed  or  suspended  as  a  result  of  the  military
action by Russia in Ukraine.
Even if our product candidates obtain regulatory approval, they will remain subject to ongoing regulatory requirements and oversight.

•

• We face significant competition from other biotechnology and pharmaceutical companies.

• We are largely dependent on the future commercial success of our HBV and coronavirus product candidates.

• We may incur substantial liabilities and may be required to limit commercialization of our products in response to product liability lawsuits.

•

Coverage and adequate reimbursement may not be available for our product candidates, which could make it difficult for us to sell our products
profitably.

6

• We  are  subject  to  U.S.  and  Canadian  healthcare  laws  and  regulations.  This  could  expose  us  to,  among  other  things,  criminal  sanctions,  civil
penalties, contractual damages, exclusion from participation in government healthcare programs, curtailment or restricting of our operations and
diminished profits and future earnings.

•

Failure to comply with the United States Foreign Corrupt Practices Act (“FCPA”), and potentially other global anti-corruption and anti-bribery
laws such as the Canadian Corruption of Foreign Public Officials Act, could subject us to adverse consequences.

Risks Related to Our Dependence on Third Parties

• We depend on our license agreement with Alnylam Pharmaceuticals, Inc. (“Alnylam”) for the commercialization of ONPATTRO™ (Patisiran).
• We  expect  to  depend  in  part  on  our  licensing  agreements  for  a  significant  portion  of  our  revenues  for  the  foreseeable  future  and  to  develop,
conduct clinical trials with, obtain regulatory approvals for, and manufacture, market and sell some of our product candidates. If these licensing
agreements are unsuccessful, or anticipated milestone or royalty payments are not received, our business could be materially adversely affected.

• We are dependent on collaboration and licensing partners and, therefore, are subject to the efforts of these parties and our ability to successfully

collaborate with them.

• We  will  depend  on  Qilu  Pharmaceuticals  (“Qilu”)  for  the  development  and  commercialization  of  AB-729  in  China,  Hong  Kong,  Macau  and

Taiwan.

•

If conflicts arise between our collaboration or licensing partners and us, our collaboration or licensing partners may act in their best interest and
not in our best interest, which could adversely affect our business.

• We rely on third parties to conduct our clinical trials, and if they fail to fulfill their obligations, perform services in a satisfactorily manner, and/or

comply with applicable legal or regulatory requirements, our development plans may be adversely affected.

• We rely exclusively on third parties to formulate and manufacture our product candidates, which exposes us to a number of risks that may delay

development, regulatory approval and commercialization of our products or result in higher product costs.

Risks Related to Our Intellectual Property

• Other companies may assert patent rights that prevent us from developing or commercializing our products.
• Our patents and patent applications may be challenged and may be found to be invalid.

• We may incur substantial costs as a result of litigation or other proceedings relating to patent and other intellectual property rights which could
have  a  material  adverse  effect  on  our  business,  financial  condition  and  results  of  operations  and  could  cause  the  market  value  of  our  common
shares to decline.

•

Confidentiality agreements with employees and others, including collaborators, may not adequately prevent disclosure of trade secrets and other
proprietary information.

Risks Related to the Ownership of our Common Shares

•

The concentration of common share ownership with insiders, as well as director nomination rights held by the largest shareholder, will likely limit
the ability of the other shareholders to influence corporate matters.

• We are incorporated in Canada, with our assets located both in Canada and the United States, with the result that it may be difficult for investors to

enforce judgments obtained against us or some of our officers.

•

If  we  are  deemed  a  “passive  foreign  investment  company”  for  the  current  or  any  future  taxable  year,  investors  subject  to  U.S.  federal  taxation
would likely suffer materially adverse U.S. federal income tax consequences.

• Our articles and certain Canadian laws could delay or deter a change of control.

7

General Risk Factors

•

If we are unable to attract and retain qualified key management, scientific staff, consultants and advisors, our ability to implement our business
plan may be adversely affected.

• We could face liability from our controlled use of hazardous and radioactive materials in our research and development processes.

• Our business, reputation, and operations could suffer in the event of information technology system failures.

• We may acquire other assets or businesses, or form strategic alliances or collaborations or make investments in other companies or technologies
that could harm our financial condition, results of operations or cash flows, dilute our shareholders’ ownership, incur debt or cause us to incur
significant expense.

8

Item 1. Business 

Overview

PART I

Arbutus  Biopharma  Corporation  (“Arbutus”,  the  “Company”,  “we”,  “us”,  and  “our”)  is  a  clinical-stage,  biopharmaceutical  company  leveraging  its
extensive  virology  expertise  to  develop  novel  therapeutics  that  target  specific  viral  diseases.  Our  current  focus  areas  include  Hepatitis  B  virus  (HBV),
SARS-CoV-2 and other coronaviruses. In HBV, we are developing an RNA interference (“RNAi”) therapeutic, oral capsid inhibitor, oral PD-L1 inhibitor,
and oral RNA destabilizer that we intend to combine to provide a functional cure for patients with chronic HBV infection (“cHBV”) by suppressing viral
replication,  reducing  surface  antigen  and  reawakening  the  immune  system.  We  believe  our  lead  compound,  AB-729,  is  the  only  RNAi  therapeutic  with
evidence  of  immune  re-awakening,  and  is  currently  being  evaluated  in  multiple  phase  2  clinical  trials.  We  have  an  ongoing  drug  discovery  and
development  program  directed  to  identifying  novel,  orally  active  agents  for  treating  coronaviruses  (including  SARS-CoV-2).  We  are  also  exploring
oncology applications for our internal PD-L1 portfolio.

Strategy

The core elements of our strategy include:

•

Developing  a  broad  portfolio  of  compounds  that  target  cHBV.  Our  HBV  product  pipeline  includes  a  subcutaneously-delivered  RNAi
therapeutic, an oral capsid inhibitor, an oral HBV RNA destabilizer compound and an oral PD-L1 inhibitor. We believe that by combining these
compounds to suppress HBV DNA replication and hepatitis B surface antigen (“HBsAg”) expression as well as reawaken patients’ HBV-specific
immune  response,  we  can  address  the  most  important  elements  to  achieving  a  functional  cure.  We  define  a  functional  cure  as  unquantifiable
plasma HBV DNA and HBsAg levels more than six months after treatment with or without quantifiable anti-HBsAg antibodies.

AB-729, our proprietary subcutaneously-delivered RNAi therapeutic product candidate that suppresses HBsAg expression, which is thought to be
a key prerequisite to enable reawakening of a patient’s immune system to respond to HBV, is currently in one ongoing Phase 1a/1b clinical trial
and  three  Phase  2a  proof-of-concept  clinical  trials  in  combination  with  other  agents  with  potentially  complementary  mechanisms  of  action.
Preliminary data from the Phase 1a/1b clinical trial has shown that treatment with AB-729 resulted in meaningful declines in HBsAg while being
well  tolerated  with  no  serious  adverse  events  (SAEs)  noted  after  both  single  and  repeat  dosing.  Preliminary  data  also  suggests  that  long-term
suppression of HBsAg with AB-729 results in increased HBV-specific immune response. We anticipate presenting long-term on- and off-treatment
follow-up data from our Phase 1a/1b clinical trial at a medical conference in 2022.

AB-836,  our  proprietary  next-generation  oral  capsid  inhibitor  that  suppresses  HBV  DNA  replication,  is  currently  in  an  ongoing  Phase  1a/1b
clinical trial where preliminary data from healthy subjects and HBV patients have shown that AB-836 is generally safe and well-tolerated with
robust  antiviral  activity.  AB-836  is  from  a  novel  chemical  series  differentiated  from  competitor  compounds  and  has  the  potential  to  provide
increased efficacy and an enhanced resistance profile. We expect to announce additional data from this clinical trial in the first half of 2022.

AB-101, our oral PD-L1 inhibitor that has the potential to reawaken patients’ HBV-specific immune response by inhibiting PD-L1, is advancing
through lead optimization with the anticipation of completing investigational new drug (“IND”)-enabling studies in the second half of 2022. We
are also exploring potential oncology applications for our internal PD-L1 portfolio.

AB-161,  our  next-generation  oral  HBV  specific  RNA  destabilizer,  is  advancing  through  lead  optimization  with  the  anticipation  of  completing
IND-enabling  studies  in  the  second  half  of  2022.  We  have  conducted  extensive  non-clinical  safety  evaluations  with  AB-161  that  gives  us
confidence in this molecule’s ability to circumvent the peripheral neuropathy findings seen in non-clinical safety studies with our first-generation
oral RNA destabilizer, AB-452.

9

•

•

Combining therapeutic product candidates with complementary mechanisms of action to find a functional cure for people with cHBV. We
believe that our proprietary product candidates AB-729, AB-836, AB-101 and AB-161, along with existing approved therapies, may provide our
first proprietary combination therapy for people with cHBV. In-line with our strategy to position AB-729 as a potential cornerstone therapeutic in
future HBV combination regimens, and to help guide future development of combination therapies of AB-729 with other compounds from our
proprietary HBV portfolio, we are evaluating AB-729 in combination with other agents with potentially complementary mechanisms of action,
including the following:

• We  are  currently  enrolling  patients  with  cHBV  in  a  Phase  2a  proof-of-concept  clinical  trial  to  evaluate  AB-729  in  combination  with
ongoing standard-of-care nucleos(t)ide analogues (“NA”) therapy and short courses of Peg-IFNα-2a, with preliminary data anticipated in
the second half of 2022.

•

•

•

Through our collaboration with Assembly BioSciences, Inc. (“Assembly”), patients with cHBV are being enrolled in a Phase 2a proof-of-
concept  clinical  trial  evaluating  a  triple  combination  of  AB-729,  Assembly’s  lead  HBV  core  inhibitor  (capsid  inhibitor)  product
candidate, vebicorvir (“VBR”), and NA therapy. Assembly is conducting this clinical trial and expects preliminary data in the second half
of 2022.

Through our collaboration with Antios Therapeutics, Inc. (“Antios”), enrollment is complete in a cohort of patients in Antios’ ongoing
Phase 2a proof-of-concept clinical trial evaluating a triple combination of AB-729, Antios’ proprietary Active Site Polymerase Inhibitor
Nucleotide  (ASPIN),  ATI-2173,  and  Viread  (tenofovir  disoproxil  fumarate),  a  nucleos(t)ide  reverse  transcriptase  inhibitor.  With  the
majority  of  patients  in  this  cohort  enrolled  in  Ukraine,  which  is  currently  in  a  state  of  war,  they  may  be  lost  to  follow-up  before
completing the clinical trial. Therefore, we and Antios may report limited data on a reduced number of patients from this clinical trial.

Through our collaboration with Vaccitech plc (“Vaccitech”), we anticipate initiating in the first half of 2022 a Phase 2a clinical trial to
evaluate a triple combination of AB-729 with Vaccitech’s VTP-300, a proprietary T cell stimulating therapeutic vaccine, and NA therapy
for the treatment of patients with cHBV. We filed a Clinical Trial Application (CTA) in the fourth quarter of 2021 and anticipate initiating
the clinical trial in the first half of 2022.

Advancing small molecule antiviral product candidates to treat COVID-19 and future coronavirus outbreaks. This program is focused on
the  discovery  and  development  of  new  molecular  entities  for  treating  coronaviruses  (including  COVID-19)  that  address  specific  viral  targets
including the nsp12 viral polymerase and the nsp5 viral protease (nucleos(t)ide). Through our collaboration with X-Chem, Inc. (“X-Chem”) and
Proteros  biostructures  GmbH  (“Proteros”),  we  have  identified  and  obtained  a  worldwide  exclusive  license  to  several  molecules  that  inhibit  the
SARS-CoV-2  nsp5  main  protease  (“Mpro”),  a  validated  target  for  the  treatment  of  COVID-19  and  potential  future  coronavirus  outbreaks.  We
expect to nominate a candidate that inhibits Mpro in the first half of 2022 and advance into IND-enabling studies. We are also continuing lead
optimization activities for an Nsp12 viral polymerase candidate.

Background on HBV

Hepatitis B is a potentially life-threatening liver infection caused by HBV. HBV can cause chronic infection which leads to a higher risk of death from
cirrhosis and liver cancer. cHBV represents a significant unmet medical need. There are HBV vaccines approved by the FDA, which are indicated for the
prevention of infection caused by HBV. However,  the  World  Health  Organization  estimates  that  over  290  million  people  worldwide  suffer  from  cHBV,
while other estimates indicate that approximately 2.4 million people in the United States suffer from cHBV. Even with the availability of effective vaccines
and current treatment options, approximately 820,000 people die every year from complications related to cHBV. We believe there is a compelling market
opportunity for an HBV curative regimen. Currently, an estimated 30.4 million (10.5%) of a total of over 290 million people worldwide with cHBV are
diagnosed  and  approximately  6.6  million  (2.3%)  are  on  treatment.  We  believe  that  the  introduction  of  an  HBV  curative  regimen  with  a  finite  duration
would substantially increase diagnosis and treatment rates for people with cHBV.

10

Current treatments and their limitations

Today’s current treatment options for cHBV include pegylated interferon-α regimens (“Peg-IFNα”) and NAs. Peg-IFNα, a synthetic version of a substance
produced by the body to fight infection, is administered by injection and has numerous side effects including flu-like symptoms and depression. NAs are
oral antiviral medications which, when taken chronically, reduce HBV virus replication and inflammation and significantly reduce HBV DNA in the blood.
Oral  NAs  have  become  the  standard-of-care  for  HBV  treatment,  mainly  due  to  their  ability  to  drive  viral  load  to  undetectable  levels  in  the  serum  of
patients, their easy single pill once-a-day dosing and favorable safety profile. However, in most cases, once Peg-IFNα and NA therapies are stopped, virus
replication  resumes  and  liver  inflammation  and  fibrosis  may  still  progress.  While  these  treatments  reduce  viral  load,  less  than  5%  of  patients  are
functionally cured after a finite treatment duration. With such low cure rates, most patients with cHBV are required to take NA therapy daily for the rest of
their lives.

HBV Lifecycle and Key Points for Intervention

The viral lifecycle of HBV is shown below. Given the biology of HBV, we believe combination therapies are the key to more effective HBV treatment and
a potential functional cure. Our product pipeline includes multiple product candidates that target various steps in the viral lifecycle. We believe each of
these mechanisms, when administered for a finite duration in combination with existing approved therapies, has the potential to improve upon the standard
of care and potentially lead to a functional cure.

1. NAs:  NAs  work  by  inhibiting  HBV  DNA  polymerase  activity  and  suppressing  HBV  replication.  However,  NAs  functionally  cure  only  a  small

percentage of patients and typically require chronic dosing to maintain their benefits, which can be challenging for patients.

2. Capsid  inhibitor  (AB-836):  this  orally-delivered  product  candidate  has  the  potential  to  inhibit  HBV  replication  by  preventing  the  assembly  of
functional viral capsids. HBV  core  protein  assembles  into  a  capsid  structure,  which  is  required  for  viral  replication.  The  current  standard-of-care
therapy  for  HBV,  primarily  NAs  that  work  by  inhibiting  the  viral  polymerase,  significantly  reduces  virus  replication,  but  not  completely.  Capsid
inhibitors inhibit replication by

11

destabilizing core particle assembly or disassembly. Capsid inhibitors also have been shown to inhibit the uncoating step of the viral life cycle thus
reducing  the  formation  of  new  covalently  closed  circular  DNA  ("cccDNA"),  the  viral  reservoir  which  resides  in  the  cell  nucleus  and  which  is
believed to play a role in viral persistence.

3. RNAi (AB-729): this subcutaneously-delivered RNAi therapeutic product candidate targeted to hepatocytes uses our novel covalently conjugated N-
acetylgalactosamine  (“GalNAc”)  subcutaneous  delivery  technology.  AB-729  inhibits  viral  replication  and  reduces  all  HBV  antigens,  including
HBsAg. Reducing HBsAg is thought to be a key prerequisite to enable reawakening of a patient’s immune system to respond to the virus.

Oral HBV RNA destabilizer (AB-161): HBV RNA destabilizers have the potential to complement or replace subcutaneously delivered RNAi agents,
such as AB-729, with an oral therapy in combination with a capsid inhibitor and an approved NA. These small molecule orally active agents cause
the destabilization and ultimate degradation of HBV RNAs. These agents result in the reduction of HBsAg and other viral proteins in both whole cell
systems and animal models. They have the potential to selectively impact HBV versus other RNA or DNA viruses and demonstrate pangenotypic
characteristics. HBV RNA destabilizers have demonstrated additive effects in combination with other mechanism of action anti-HBV agents.

Beyond addressing the key points of intervention described above, PD-L1 inhibitors could potentially be an important part of a combination therapy for
the  treatment  of  cHBV  by  reawakening  the  immune  system.  Highly  functional  HBV-specific  T  cells  within  our  immune  system  are  believed  to  be
required  for  long-term  HBV  viral  resolution.  However,  HBV-specific  T  cells  become  functionally  defective,  and  greatly  reduced  in  their  frequency
during  cHBV.  Our  PD-L1  inhibitor  product  candidate,  AB-101,  is  being  developed  to  potentially  boost  HBV-specific  T  cells  by  preventing  PD-L1
proteins from attaching to and inhibiting the HBV-specific T cells.

Background on Coronaviruses

Coronaviruses are a large family of viruses that range from the common cold to more severe diseases such as severe acute respiratory syndrome (SARS),
Middle East respiratory syndrome (MERS), and coronavirus disease 2019 (COVID-19). COVID-19 is defined as an illness caused by SARS-CoV-2 and
was  first  identified  in  Wuhan,  China  in  December  2019.  This  virus  has  been  declared  a  pandemic  by  the  World  Health  Organization  and  has  spread  to
nearly every country in the world. The impact of this pandemic has been, and will likely continue to be, extensive in many aspects of society. COVID-19
has  caused  approximately  6.9  million  deaths  globally  according  to  an  analysis  by  the  Institute  for  Health  Metrics  and  Evaluation  (IHME).  COVID-19
spreads when an infected person breathes out droplets and very small particles that contain the virus. The CDC has recommended vaccinations, wearing
masks, and social distancing to protect individuals from acquiring and transmitting COVID-19. Since its inception in December 2019, variant strains of
COVID-19 have evolved and continue to impact the number of cases and deaths associated with this pandemic. It is well-accepted that in addition to the
availability of vaccines, effective and safe therapies are needed to successfully combat the COVID-19 pandemic and any future coronavirus outbreaks.

Our Product Candidates

Our product pipeline includes multiple product candidates that target various steps in the HBV viral lifecycle and pan-coronavirus compounds that target
essential enzymes for replication, the viral protease (Mpro) and polymerase (NA).

Our product pipeline consists of the following programs:

12

We  continue  to  explore  expansion  opportunities  for  our  pipeline  through  internal  discovery  and  development  activities  and  through  potential  strategic
alliances.

GalNAc RNAi (AB-729)

RNAi  therapeutics  represent  a  recent  significant  advancement  in  drug  development.  RNAi  therapeutics  utilize  a  natural  pathway  within  cells  to  silence
genes by eliminating the disease-causing proteins that they code for. We are developing RNAi therapeutics that are designed to reduce HBsAg expression
and  other  HBV  antigens  in  people  with  cHBV.  Reducing  HBsAg  is  widely  believed  to  be  a  key  prerequisite  to  enable  a  patient’s  immune  system  to
reawaken and respond against the virus.

AB-729 is a subcutaneously-delivered RNAi therapeutic targeted to hepatocytes using our proprietary covalently conjugated GalNAc delivery technology.
AB-729 reduces all HBV antigens and inhibits viral replication. Our three-part Phase 1a/1b clinical trial was designed to investigate the safety, tolerability,
pharmacokinetics,  and  pharmacodynamics  of  single-  and  multi-dose  AB-729  in  healthy  subjects  and  in  cHBV  patients  and  to  determine  the  most
appropriate doses and dosing intervals to take forward into Phase 2 clinical development.

Part 1 of the trial dosed healthy subjects, and upon completion, supported advancing doses ranging from 60 mg to 180 mg into Part 2. Part 2 of the trial
dosed patients with cHBV with single doses of AB-729, and upon completion, showed that single doses of AB-729 result in comparable mean HBsAg
declines at week 12 followed by a sustained plateau phase. Part 3 of the trial is on-going and dosing HBV DNA negative and positive patients with multiple
doses of AB-729 every 4, 8 or twelve weeks.

In November 2021, we presented a late breaker poster presentation at the 2021 AASLD liver meeting highlighting the most recent data from Part 3 of this
clinical trial. Repeat dosing of 60 mg and 90 mg of AB-729 resulted in robust mean declines (ranging from 1.8-2.0 log10 at week 40) in HBsAg that were
sustained up to 48 weeks, with no statistically significant differences observed to date between the 60 mg and 90 mg dose and/or dosing intervals. Data
from the poster presentation also included long-term follow-up data for patients in cohort E (60 mg every four weeks) and cohort F (60 mg every eight
weeks) who had been off AB-729 treatment for six months. Suppression of HBsAg to levels <100 IU/mL were maintained up to 24 weeks off-treatment in
3 of 7 patients in cohort E and 1 of 3 patients with available data in cohort F. Patients who remain below this clinically relevant threshold for six months
after stopping AB-729 treatment could consider discontinuing their NA therapy

13

to assess the potential for functional cure. We anticipate presenting additional long-term on- and off-treatment follow-up data from Part 3 of this clinical
trial at a medical conference in 2022.

Repeat dosing of both the 60 mg and 90 mg doses of AB-729 continues to be generally safe and well-tolerated. There were no treatment-related SAEs or
discontinuations. The most common treatment emergent adverse events (“AEs”) were injection site-related, of which all were grade one and did not appear
to be dose or interval dependent. Alanine transaminase (“ALT”) and Aspatate transaminase (“AST”) elevations were asymptomatic and not considered AEs
by the study investigators

The efficacy and safety data for AB-729, derived from up to one year of dosing, support our view that 60 mg every 8 weeks is an appropriate dose to move
forward  in  our  Phase  2a  clinical  trials.  To  advance  our  efforts  to  position  AB-729  as  a  potential  cornerstone  therapeutic  in  future  HBV  combination
regimens,  we  are  evaluating  AB-729  in  three  Phase  2a  proof-of-concept  combination  clinical  trials  with  other  agents  with  potentially  complementary
mechanisms of action, including Peg-IFNα-2a and several investigational agents via clinical collaborations with other companies as described below.

Phase 2a proof-of-concept clinical trial to evaluate AB-729 in combination with Peg-IFNα-2a

In July 2021, we received authorization from the FDA to proceed with our Investigational New Drug (IND) application for AB-729 in a randomized, open
label, multicenter Phase 2a clinical trial investigating the safety and antiviral activity of AB-729 in combination with ongoing NA therapy and short courses
of Peg-IFNα-2a in patients with cHBV. We are currently enrolling up to 40 stably NA-suppressed, HBeAg negative, non-cirrhotic cHBV patients.

After 24-weeks of dosing with AB-729 (60 mg every 8 weeks), patients will be randomized into one of four groups to receive either AB-729 plus NA
therapy plus Peg-IFNα-2a or NA therapy plus Peg-IFNα-2a for either 24 or 12 weeks. After completion of the assigned Peg-IFNα-2a treatment period, all
patients will remain on NA therapy for the initial 24-week follow-up period, and will then discontinue NA treatment, provided they meet certain stopping
criteria. If patients stop NA therapy, they will enter an intensive follow-up period for 48 weeks. We anticipate preliminary data from this clinical trial in the
second half of 2022.

Collaboration with Assembly

In August 2020, we entered into a clinical collaboration agreement with Assembly to evaluate AB-729 in combination with Assembly’s lead HBV core
inhibitor  (capsid  inhibitor)  candidate  VBR  and  standard-of-care  NA  therapy  for  the  treatment  of  patients  with  cHBV.  Patients  are  being  enrolled  in  a
randomized,  multi-center,  open-label  Phase  2a  proof-of-concept  clinical  trial  evaluating  the  safety,  pharmacokinetics,  and  antiviral  activity  of  the  triple
combination of AB-729, VBR, and an NA compared to the double combinations of VBR with an NA and AB-729 with an NA. We expect the clinical trial
to enroll approximately 60 virologically-suppressed patients with HBeAg negative cHBV in the first cohort of the trial. Patients will be dosed for 48 weeks
with AB-729 60 mg subcutaneously every 8 weeks and VBR (300 mg orally once daily), with a 48-week follow-up period. Both parties will share in the
costs  of  the  collaboration.  Assembly  is  conducting  the  clinical  trial  and  anticipates  preliminary  data  in  the  second  half  of  2022.  Under  the  terms  of  the
collaboration, both parties may also add additional cohorts in the future to evaluate other patient populations and/or combinations. Except to the extent
necessary to carry out Assembly’s responsibilities with respect to the collaboration trial, we have not provided any license grant to Assembly for use of
AB-729.

Collaboration with Vaccitech

In  July  2021,  we  entered  into  a  clinical  collaboration  agreement  with  Vaccitech  to  evaluate  the  safety,  pharmacokinetics,  immunogenicity,  and  antiviral
activity  of  AB-729  followed  by  Vaccitech’s  VTP-300,  a  proprietary  T  cell  stimulating  therapeutic  vaccine,  in  NrtI-suppressed  patients  with  cHBV.  We
expect to enroll 40 NA-suppressed, HBeAg negative or positive, non-cirrhotic cHBV patients. Patients are expected to receive AB-729 + NA for 24 weeks.
At week 24, patients will be randomized 1:1 to receive either NA + VTP-300 or NA + VTP-300 sham. At week 48, all patients are expected to be evaluated
for eligibility to either discontinue all treatments or remain on their NA therapy only. Patients are expected to be followed for up to an additional 48 weeks.
The Phase 2a proof-of-concept clinical trial will be managed by us, subject to oversight by a joint development committee comprised of representatives
from us and Vaccitech. We and Vaccitech retain full rights to our respective product candidates and will split all costs associated with the clinical trial. We
filed a CTA in the fourth quarter of

14

2021 and anticipate initiating the clinical trial in the first half of 2022. Pursuant to the agreement, the parties intend to undertake a larger Phase 2b clinical
trial depending on the results of the initial Phase 2a clinical trial.

Collaboration with Antios

In June 2021, we entered into a clinical collaboration agreement with Antios to evaluate a triple combination of AB-729, Antios’ proprietary Active Site
Polymerase Inhibitor Nucleotide (ASPIN), ATI-2173, and Viread (tenofovir disoproxil fumarate), a nucleos(t)ide reverse transcriptase inhibitor which is
currently  approved  by  the  FDA,  for  the  treatment  of  patients  with  cHBV.  The  safety,  pharmacokinetics,  immunogenicity,  and  antiviral  activity  of  the
combination  of  ATI-2173,  AB-729  and  Viread  is  being  evaluated  in  a  single  cohort  in  the  ongoing  Antios  Phase  2a  ANTT201  clinical  trial.  Antios  is
responsible  for  conducting  this  clinical  trial.  Antios  is  responsible  for  the  costs  of  adding  this  single  cohort  to  its  ongoing  clinical  trial.  Arbutus  is
responsible for the manufacture and supply of AB-729. Except to the extent necessary to carry out Antios’ responsibilities with respect to the collaboration
trial,  we  have  not  provided  any  license  grant  to  Antios  for  use  of  AB-729.  This  cohort  has  completed  enrollment.  With  the  majority  of  patients  in  this
cohort enrolled in Ukraine, which is currently in a state of war, they may be lost to follow-up before completing the clinical trial. Therefore, we and Antios
may report limited data on a reduced number of patients from this clinical trial.

Oral Capsid Inhibitor (AB-836)

HBV core protein assembles into a capsid structure, which is required for viral replication. The current commercially available therapies (NAs or Peg-IFN)
significantly reduce HBV DNA levels in the serum, but HBV replication continues in the liver, thereby enabling HBV infection to persist. More effective
therapies  for  patients  require  new  agents  which  will  further  block  viral  replication.  We  are  developing  capsid  inhibitors  (also  known  as  core  protein
inhibitors) as oral therapeutics which, in combination with NAs, could further reduce HBV replication. By inhibiting assembly of functional viral capsids,
the ability of HBV to replicate is impaired. Capsid inhibitor molecules also inhibit the uncoating step of the viral life cycle and thus reduce the formation of
cccDNA, the viral reservoir which resides in the cell nucleus, and which is believed to play a role in viral persistence.

AB-836  is  a  capsid  inhibitor  from  a  novel  chemical  series  differentiated  from  competitor  compounds  with  the  potential  for  increased  efficacy  and  an
enhanced  resistance  profile.  AB-836  leverages  a  novel  binding  site  within  the  core  protein  dimer-dimer  interface,  has  shown  to  be  active  against  NA
resistant variants and has the potential to address certain known capsid resistant variants. AB-836 is anticipated to be combinable with other mechanisms of
action and is also anticipated to be dosed once daily.

We  are  enrolling  patients  in  a  double-blind,  randomized,  placebo-controlled  Phase  1a/1b  clinical  trial  designed  to  evaluate  the  safety,  tolerability,
pharmacokinetics and antiviral activity of single and multiple doses of AB-836 in healthy subjects and patients with cHBV. The trial consists of three parts.
Part 1 evaluated alternating single doses of AB-836 or placebo ranging from 10 mg to 175 mg in a fasted or fed state in healthy subjects. Part 2 evaluated
multiple ascending doses of 50 mg, 100 mg or 150 mg of AB-836 or placebo once daily for 10 days in healthy subjects. Part 3, which is still on-going, is
currently randomizing HBV DNA positive cHBV patients who are HBeAg positive or negative to receive either 50 mg, 100 mg or 200 mg of AB-836 or
placebo once daily for 28 days.

In December 2021, we announced preliminary data from this trial. In Parts 1 and 2, a total of 47 healthy subjects were enrolled and dosed. There were no
deaths or SAEs observed. One healthy subject that received 50 mg once daily discontinued after treatment on day 13 due to an AE of agitation. All but
three AEs were mild (Grade 2 headache, agitation and bronchitis), and only one was assessed as related to AB-836 (Grade 1 rash). There were no clinically
significant abnormalities in clinical laboratory tests, ECGs, vital signs or physical exams noted.

In Part 3, 16 cHBV patients had been dosed thus far with enrollment continuing. Among those who received 100 mg once daily for the full 28 days (n=4),
robust antiviral activity was observed at Day 28 of treatment with a mean (SE) log10 change from baseline of -3.1 (0.5). There have been no deaths or AEs.
One cHBV patient that received 100 mg of AB-836 had a transient increase in ALT from baseline Grade 1 to Grade 3 at a single visit that resolved with
continued dosing and had no associated symptoms. There were no clinically significant abnormalities in ECGs, vital signs or physical exams noted.

15

We are continuing to enroll and dose cHBV patients in Part 3 of this clinical trial and we anticipate reporting additional data in the first half of 2022.

Oral PD-L1 Inhibitor (AB-101)

PD-L1  inhibitors  complement  our  pipeline  of  agents  and  could  potentially  be  an  important  part  of  a  combination  therapy  for  the  treatment  of  HBV  by
reawakening the immune system. Highly functional HBV-specific T cells within our immune system are believed to be required for long-term HBV viral
resolution. However,  HBV-specific  T  cells  become  functionally  defective,  and  greatly  reduced  in  their  frequency  during  cHBV.  One  approach  to  boost
HBV-specific T cells is to prevent PD-L1 proteins from attaching to and inhibiting the HBV-specific T cells.

AB-101  is  an  oral  PD-L1  inhibitor  that  has  the  potential  to  reawaken  patients’  HBV-specific  immune  response  by  inhibiting  PD-L1.  We  anticipate
completing IND-enabling studies in the second half of 2022. We are also exploring potential oncology applications for our internal PD-L1 portfolio.

Oral HBV RNA Destabilizer (AB-161)

HBV RNA destabilizers are small molecule orally available agents that cause the destabilization and ultimate degradation of HBV RNAs. These agents
result in the reduction of HBsAg and other viral proteins in both whole cell systems and animal models. They have the potential to selectively impact HBV
versus  other  RNA  or  DNA  viruses  and  demonstrate  pangenotypic  characteristics.  HBV  RNA  destabilizers  have  demonstrated  additive  effects  in
combination with other anti-HBV mechanisms of action. HBV RNA destabilizers have the potential to complement or replace subcutaneously delivered
RNAi agents, such as AB-729, with an oral therapy in combination with a capsid inhibitor and an approved NA.

AB-161 is our next-generation oral HBV specific RNA destabilizer. We have conducted extensive non-clinical safety evaluations with AB-161 that gives
us confidence in this molecule’s ability to circumvent the peripheral neuropathy findings seen in non-clinical safety studies with our first-generation oral
RNA destabilizer, AB-452. We anticipate completing IND-enabling studies for AB-161 in the second half of 2022.

COVID-19 Research Efforts

While our core mission is to find a cure for HBV, the magnitude of the coronavirus pandemic is undeniable. Given our science team’s proven expertise in
the discovery of new antiviral therapies, in 2020 we initiated a drug discovery effort for treating coronaviruses, including COVID-19. To that end, we have
assembled  an  internal  team  of  expert  scientists  under  the  direction  of  our  Chief  Scientific  Officer,  Dr.  Michael  Sofia,  to  identify  novel  small  molecule
therapies to treat COVID-19 and future coronavirus outbreaks. Dr. Sofia, who was awarded the Lasker-DeBakey Award for his discovery of sofosbuvir,
brings extensive antiviral drug discovery experience to this new program. We are also a member of the COVID R&D consortium to address the SARS-
CoV-2 pandemic and any future coronavirus outbreaks. Our COVID-19 research program is focused on the discovery and development of new molecular
entities that address specific viral targets including the nsp12 viral polymerase and the nsp5 viral protease. These targets are essential viral proteins which
our science team has experience in targeting.

16

Collaboration with X-Chem and Proteros

pro

In  March  2021,  we  entered  into  a  discovery  research  and  license  agreement  with  X-Chem  and  Proteros  to  focus  on  the  discovery  of  novel  inhibitors
targeting the SARS-CoV-2 nsp5 main protease (M ). The agreement is designed to accelerate the development of pan-coronavirus agents to treat COVID-
19 and potential future coronavirus outbreaks. This collaboration brought together our expertise in the discovery and development of antiviral agents with
X-Chem’s  industry  leading  DNA-encoded  library  (DEL)  technology  and  Proteros’  protein  sciences,  biophysics  and  structural  biology  capabilities  and
provides important synergies to potentially identify safe and effective therapies against coronaviruses, including SARS-CoV-2. The collaboration allows for
pro
the rapid screening of one of the largest small molecule libraries against M  (an essential protein required for the virus to replicate itself) and the use of
state-of-the-art  structure  guided  methods  to  rapidly  optimize  M   inhibitors,  which  we  could  potentially  progress  to  clinical  candidates.  The  agreement
provides for payments by us to X-Chem and Proteros upon satisfaction of certain development, regulatory and commercial milestones, as well as royalties
on sales. Through this collaboration, we have identified and obtained a worldwide exclusive license to several molecules that inhibit M , a validated target
for the treatment of COVID-19 and potential future coronavirus outbreaks. We expect to nominate an M  product candidate in the first half of 2022 and
advance into IND-enabling studies. We are also continuing lead optimization activities for an Nsp12 viral polymerase candidate.

pro

pro

pro

COVID-19 Impact

The COVID-19 virus, first identified in December 2019, has been declared a pandemic by the World Health Organization and has spread to nearly every
country in the world. The impact of this pandemic has been, and will likely continue to be, extensive in many aspects of society. The pandemic has resulted
in  and  will  likely  continue  to  result  in  significant  disruptions  to  businesses.  A  number  of  countries  and  other  jurisdictions  around  the  world  have
implemented extreme measures in attempts to slow the spread of the virus. These measures include the closing of businesses and requiring people to stay in
their homes, the latter of which raises uncertainty regarding the ability to travel to hospitals in order to participate in clinical trials. Additional measures that
have had, and will likely continue to have, a major impact on clinical development, at least in the near-term, include shortages and delays in the supply
chain,  and  prohibitions  in  certain  countries  on  enrolling  patients  in  new  clinical  trials.  While  we  have  been  able  to  progress  with  our  clinical  and  pre-
clinical activities to date, it is not possible to predict if the COVID-19 pandemic will materially impact our plans and timelines in the future.

Other Collaborations and Royalty Entitlements

Collaboration with Qilu Pharmaceuticals

In  December  2021,  we  entered  into  a  technology  transfer  and  exclusive  license  agreement  (the  “License  Agreement”)  with  Qilu,  pursuant  to  which  we
granted Qilu an exclusive (except as to certain retained rights), sublicensable, royalty-bearing license, under certain intellectual property owned by us, to
develop, manufacture and commercialize AB-729, including pharmaceutical products that include AB-729, for the treatment or prevention of hepatitis B in
China, Hong Kong, Macau and Taiwan (the “Territory”).

In partial consideration for the rights granted by us, Qilu paid us a one-time upfront cash payment of $40 million on January 5, 2022 and agreed to pay us
milestone payments totaling up to $245 million, net of withholding taxes, upon the achievement of certain technology transfer, development, regulatory and
commercialization milestones. Qilu also agreed to pay us double digit royalties into the low twenties percent based upon annual net sales of AB-729 in the
Territory. The royalties are payable on a product-by-product and region-by-region basis, subject to certain limitations.

Qilu is responsible for all costs related to developing, obtaining regulatory approval for, and commercializing AB-729 for the treatment or prevention of
hepatitis B in the Territory. Qilu is required to use commercially reasonable efforts to develop, seek regulatory approval for, and commercialize at least one
AB-729  product  candidate  in  the  Territory.  A  joint  development  committee  will  be  established  between  us  and  Qilu  to  coordinate  and  review  the
development,  manufacturing  and  commercialization  plans.  Both  parties  also  agreed  to  negotiate  in  good  faith  the  terms  and  conditions  of  a  supply
agreement  and  related  quality  agreement  pursuant  to  which  we  will  manufacture  or  have  manufactured  and  supply  Qilu  with  all  quantities  of  AB-729
necessary for Qilu to develop and commercialize in the Territory until we have completed manufacturing technology

17

transfer to Qilu and approval of a product manufacturer by Qilu, or its designated contract manufacturing organization, by the National Medical Products
Administration in China for AB-729.

Concurrent with the execution of the License Agreement, we entered into a Share Purchase Agreement (the “Share Purchase Agreement”) with Anchor
Life Limited, a company established pursuant to the applicable laws and regulations of Hong Kong and an affiliate of Qilu (the “Investor”), pursuant to
which the Investor purchased 3,579,952 of our common shares, without par value (the “Common Shares”), at a purchase price of USD $4.19 per share,
which was a 15% premium on the thirty-day average closing price of the Common Shares as of the close of trading on December 10, 2021 (the “Share
Transaction”). We received $15.0 million of gross proceeds from the Share Transaction on January 6, 2022. The Common Shares sold to the Investor in the
Share  Transaction  represented  approximately  2.5%  of  the  Common  Shares  outstanding  immediately  prior  to  the  execution  of  the  Share  Purchase
Agreement.

Alnylam Pharmaceuticals, Inc. and Acuitas Therapeutics, Inc.

We have two royalty entitlements to Alnylam’s global net sales of ONPATTRO.

In  2012,  we  entered  into  a  license  agreement  with  Alnylam  that  entitles  Alnylam  to  develop  and  commercialize  products  with  our  lipid  nanoparticle
(“LNP”) delivery technology. Alnylam’s ONPATTRO, which represents the first approved application of our LNP technology, was approved by the United
States FDA and the European Medicines Agency (“EMA”) during the third quarter of 2018 and was launched by Alnylam immediately upon approval in
the United States. Under the terms of this license agreement, we are entitled to tiered royalty payments on global net sales of ONPATTRO ranging from
1.00% - 2.33% after offsets, with the highest tier applicable to annual net sales above $500 million. This royalty interest was sold to the Ontario Municipal
Employees Retirement System (“OMERS”), effective as of January 1, 2019, for $20 million in gross proceeds before advisory fees. OMERS will retain this
entitlement until it has received $30 million in royalties, at which point 100% of this royalty entitlement on future global net sales of ONPATTRO will
revert to us. OMERS has assumed the risk of collecting up to $30 million of future royalty payments from Alnylam and we are not obligated to reimburse
OMERS if they fail to collect any such future royalties. If this royalty entitlement reverts to us, it has the potential to provide an active royalty stream or to
be  otherwise  monetized  again  in  full  or  in  part.  From  the  inception  of  the  royalty  sale  through  December  31,  2021,  an  aggregate  of  $11.2  million  of
royalties have been collected by OMERS.

We also have rights to a second, lower royalty interest on global net sales of ONPATTRO originating from a settlement agreement and subsequent license
agreement  with  Acuitas  Therapeutics,  Inc.  (“Acuitas”).  This  royalty  entitlement  from  Acuitas  has  been  retained  by  us  and  was  not  part  of  the  royalty
entitlement sale to OMERS.

18

Genevant Sciences, Ltd.

In  April  2018,  we  entered  into  an  agreement  with  Roivant  Sciences  Ltd.  (“Roivant”),  our  largest  shareholder,  to  launch  Genevant  Sciences  Ltd.
(“Genevant”),  a  company  focused  on  a  broad  range  of  RNA-based  therapeutics  enabled  by  our  LNP  and  ligand  conjugate  delivery  technologies.  We
licensed rights to our LNP and ligand conjugate delivery platforms to Genevant for RNA-based applications outside of HBV, except to the extent certain
rights had already been licensed to other third parties (the “Genevant License”). We retained all rights to our LNP and conjugate delivery platforms for
HBV.

Under the Genevant License, as amended, if a third party sublicensee of intellectual property licensed by Genevant from us commercializes a sublicensed
product, we become entitled to receive a specified percentage of certain revenue that may be received by Genevant for such sublicense, including royalties,
commercial milestones and other sales-related revenue, or, if less, tiered low single-digit royalties on net sales of the sublicensed product. The specified
percentage is 20% in the case of a mere sublicense (i.e., naked sublicense) by Genevant without additional contribution and 14% in the case of a bona fide
collaboration with Genevant.

Additionally,  if  Genevant  receives  proceeds  from  an  action  for  infringement  by  any  third  parties  of  our  intellectual  property  licensed  to  Genevant,  we
would be entitled to receive, after deduction of litigation costs, 20% of the proceeds received by Genevant or, if less, tiered low single-digit royalties on net
sales of the infringing product (inclusive of the proceeds from litigation or settlement, which would be treated as net sales).

In July 2020, Roivant recapitalized Genevant through an equity investment and conversion of previously issued convertible debt securities held by Roivant.
We  participated  in  the  recapitalization  of  Genevant  with  an  equity  investment  of  $2.5  million.  In  connection  with  the  recapitalization,  the  three  parties
entered into an Amended and Restated Shareholders Agreement that provides Roivant with substantial control of Genevant. We have a non-voting observer
seat on Genevant’s Board of Directors. As of December 31, 2021, we owned approximately 16% of the common equity of Genevant and the carrying value
of  our  investment  in  Genevant  was  zero.  Our  entitlement  to  receive  future  royalties  or  sublicensing  revenue  from  Genevant  was  not  impacted  by  the
recapitalization.

Moderna Inter Partes Review Petitions

On  February  21,  2018  and  March  5,  2018,  Moderna  Therapeutics,  Inc.  (“Moderna”)  filed  petitions  requesting  the  United  States  Patent  and  Trademark
Office (“USPTO”) to institute an Inter Partes Review of Arbutus United States Patents 9,404,127 (the “’127 Patent”) and 9,364,435 (the “’435 Patent”). In
its petitions, Moderna sought to invalidate all claims of each patent based on Moderna’s allegation that the claims are anticipated and/or obvious. We filed a
response  to  Moderna’s  petitions  on  June  14,  2018.  On  September  12,  2018,  the  Patent  Trial  and  Appeal  Board  (the  “PTAB”)  rendered  its  decision  to
institute Inter Partes Review of both the ‘127 Patent and the ‘435 Patent.

The status of these patents, which collectively represent only a fraction of our extensive LNP patent portfolio, is as follows:

With respect to the ‘127 Patent, the PTAB held all claims as invalid on September 10, 2019, by reason of anticipatory prior art. However, this decision was
vacated and sent back (remanded) to the PTAB for a rehearing, pending the Supreme Court’s decision whether to grant certiorari in a different case, United
States v. Athrex, Inc. (“US v. Athrex”), the holding of which could impact the findings in the ‘127 Patent matter. The Supreme Court granted certiorari in
US v. Athrex on October 13, 2020 (i.e., agreed to review the decision appealed from a lower court). Until the Supreme Court rendered its opinion in US v.
Athrex, the ‘127 Patent hearing remained in abeyance, with no decision reached as to the validity of its claims. The Supreme Court decided on the US v.
Athrex  case  on  June  21,  2021,  following  which  the  Federal  Circuit  reinstated  the  appeal  sua  sponte,  requiring  the  parties  to  brief  how  the  case  should
proceed in light of the Supreme Court’s opinion or for the appellant to waive the challenge. We elected to waive the challenge and proceed with the appeal
at the Federal Circuit. The opening brief was filed on December 15, 2021. Moderna’s responsive brief was due on February 24, 2022 and Arbutus’ reply
brief is due by March 17, 2022. No hearing date has been set for this matter.

With respect to the ‘435 Patent, the PTAB rendered its decision on September 11, 2019, holding certain claims invalid and upholding other claims as valid.
On November 13, 2019, we and Moderna both appealed the decision. Moderna filed its opening brief on May 4, 2020 and we provided our opening and
responsive brief on July 27, 2020. Moderna subsequently filed

19

its  reply  and  responsive  brief  on  October  5,  2020,  and  we  filed  our  reply  brief  on  November  9,  2020.  An  oral  hearing  on  the  ‘435  Patent  was  held  on
October 7, 2021 before the U.S. Court of Appeals for the Federal Circuit. On December 1, 2021, the Federal Circuit issued its opinion, leaving intact the
PTAB’s holding regarding the validity of certain claims in the ‘435 patent and the invalidity of other claims in the ‘435 patent.

On January 9, 2019, Moderna filed an additional petition requesting Inter Partes Review of Arbutus United States Patent 8,058,069 (the “’069 Patent”). The
PTAB instituted Inter Partes Review of the ‘069 Patent and, on July 23, 2020, issued a decision upholding all claims as valid. On September 23, 2020,
Moderna appealed the ‘069 Inter Partes Review decision to the Federal Circuit Court of Appeals. Moderna filed its opening brief in that appeal on February
23, 2021, Arbutus filed its responsive brief on May 11, 2021, and Moderna filed its reply brief on July 1, 2021. An oral hearing on the ‘069 Patent was held
on October 7, 2021, in a joint hearing with the hearing regarding the ‘435 patent, before the U.S. Court of Appeals for the Federal Circuit. On December 1,
2021, the Federal Circuit also issued its ruling with respect to the ‘069 patent, affirming the PTAB’s finding that all claims were valid.

The Federal Circuit’s decision in the ‘069 appeal was rendered final by mandate on January 10, 2022. The decision in the ‘435 appeal was rendered final by
mandate on January 25, 2022.

Moderna and Merck European Oppositions

On April 5, 2018, Moderna and Merck, Sharp & Dohme Corporation (“Merck”) filed Notices of Opposition to Arbutus’ European patent EP 2279254 (“the
’254  Patent”)  with  the  European  Patent  Office  (“EPO”),  requesting  that  the  ‘254  Patent  be  revoked  in  its  entirety  for  all  contracting  states.  We  filed  a
response to Moderna and Merck’s oppositions on September 3, 2018. A hearing was conducted before the Opposition Division of the EPO on October 10,
2019. At  the  conclusion  of  the  hearing,  the  EPO  upheld  an  auxiliary  request  adopting  the  amendment,  as  put  forth  by  us,  of  certain  claims  of  the  ‘254
Patent. In February 2020, Moderna and Merck filed Notices of Appeal challenging the EPO’s grant of the auxiliary request. Merck filed its notice of appeal
on February 24, 2020 and Moderna on February 27, 2020. We filed our response on September 18, 2020. The date for the oral proceedings has not been set.

While we are the patent holder, the ‘127 Patent, the ‘435 Patent, the ‘069 Patent and the ‘254 Patent have been licensed to Genevant and are included in the
rights licensed by us to Genevant under the Genevant License.

Patent infringement lawsuit against Moderna

In  February  2022,  Arbutus  and  Genevant  filed  a  lawsuit  in  the  U.S.  District  Court  for  the  District  of  Delaware  against  Moderna,  Inc.  and  a  Moderna
affiliate seeking damages for infringement of U.S. Patent Nos. 8,058,069, 8,492,359, 8,822,668, 9,364,435, 9,504,651, and 11,141,378 in the manufacture
and sale of MRNA-1273, Moderna’s vaccine for COVID-19. The patents relate to nucleic acid-lipid particles and lipid vesicles, as well as compositions
and methods for their use. We do not seek an injunction or otherwise seek to impede the sale, manufacture or distribution of MRNA-1273. However, we
seek fair compensation for Moderna’s use of our patented technology that was developed with great effort and at great expense, without which Moderna’s
COVID-19 vaccine would not have been successful.

Potential Additional Payments Related to the Acquisition of Enantigen Therapeutics, Inc.

In October 2014, Arbutus Inc., our wholly-owned subsidiary, acquired all of the outstanding shares of Enantigen Therapeutics, Inc. (“Enantigen”) pursuant
to  a  stock  purchase  agreement.  The  amount  paid  to  Enantigen’s  selling  shareholders  could  be  up  to  an  additional  $102.5  million  in  sales  performance
milestones in connection with the sale of the first commercialized product by us for the treatment of HBV, regardless of whether such product is based upon
assets  acquired  under  this  agreement,  and  a  low  single-digit  royalty  on  net  sales  of  such  first  commercialized  HBV  product,  up  to  a  maximum  royalty
payment of $1.0 million that, if paid, would be offset against our performance milestone payment obligations.

20

Patents and Proprietary Rights

Our commercial success depends in part on our ability to obtain and maintain proprietary protection for our product candidates, novel discoveries, product
development technologies and other know-how, to operate without infringing on the proprietary rights of others and to prevent others from infringing our
proprietary rights. Our policy is to seek to protect our proprietary position by, among other methods, filing or in licensing United States and foreign patents
and patent applications related to our proprietary technology, inventions and improvements that are important to the development and implementation of
our business. We also rely on trademarks, trade secrets, know how, continuing technological innovation and potential in licensing opportunities to develop
and maintain our proprietary position.

In addition to our proprietary expertise, we own a portfolio of patents and patent applications directed to HBV core/capsid protein assembly inhibitors,
HBV  surface  antigens  secretion  inhibitors,  coronavirus  main  protease  inhibitors,  coronavirus  Nsp12  inhibitors,  LNP  inventions,  LNP  compositions  for
delivering  nucleic  acids  such  as  mRNA  and  RNAi,  the  formulation  and  manufacture  of  LNP-based  pharmaceuticals,  chemical  modification  of  RNAi
molecules, and RNAi drugs and processes directed at particular disease indications. In the United States our patents might be challenged by inter partes
review or opposition proceedings. In Europe, upon grant, a period of nine months is allowed for notification of opposition to such granted patents.  If our
patents are subjected to inter partes review or opposition proceedings, we would incur significant costs to defend them. Further, our failure to prevail in any
such  proceedings  could  limit  the  patent  protection  available  to  our  therapeutic  HBV  programs,  coronavirus  programs  or  RNAi  platform,  including  our
product candidates.

We  own  more  than  65  patent  families  related  to  our  compounds,  formulations,  and  technology,  but  we  cannot  be  certain  that  issued  patents  will  be
enforceable or provide adequate protection or that pending patent applications will result in issued patents.

The following table shows the estimated expiration dates, based on filing dates of pending patent applications, in the United States and the European Union
for the primary patents for our product candidates currently in clinical trials.

Product candidate
AB-729
AB-836

Human Capital

Estimated Patent Expiration in US
2038
2039

Estimated Patent Expiration in EU
2038
2039

We are committed to an inclusive culture that values equality, opportunity, and respect. We seek to secure and develop top talent with a diversity of thought,
experiences and backgrounds. Among the initiatives that Arbutus has introduced to promote and support diversity and inclusion, in addition to requiring
mandatory annual training in unconscious bias and anti-harassment, is the formation of a diversity and inclusion committee, broadening the geographical
reach  of  recruitment  efforts,  and  addition  of  Juneteenth  as  a  corporate  holiday.  Arbutus  is  also  involved  with  local  charities  serving  underserved
communities  in  the  Philadelphia  area.  Drug  development  is  a  complex  endeavor  that  requires  deep  expertise  and  attracting  and  retaining  qualified
employees for specialized biopharmaceutical positions is very competitive. Our compensation programs are designed to attract and retain top talent. We
offer every employee a total compensation package consisting of base salary, cash target bonus targeting the 50th to 75th percentile of market based on
geography and company size, a comprehensive benefit package and equity compensation for every employee. Bonus opportunity and equity compensation
generally  increase  as  a  percentage  of  total  compensation  based  on  level  of  responsibility.  Actual  bonus  payout  is  based  on  company  and  individual
performance. We also provide eligible employees the opportunity to participate in our employee stock purchase plan, employee rewards and recognition
program, our wellness programs and company-hosted charitable events. We aim to allow our employees to maintain a work/life balance and find time to
give back to the communities in which we work and live, all while striving to achieve company objectives and demonstrating our Arbutus values.

Arbutus also has a number of initiatives designed to reduce its environmental footprint, including the transition to the use of all LED lighting and timed
parking  lot  lights,  a  building  automation  system  that  allows  for  controlling  and  scheduling  of  occupied/unoccupied  space  temperatures,  repurposing
substantially all shipping boxes and other packing material and donation of unused consumables to small start-up labs or local hospitals, among many other
energy-saving initiatives.

21

We are invested in the development of our employees, including performance management and mentorship programs. In 2021, we experienced our lowest
turnover in the previous six years, while many other companies experienced their highest in the midst of a historically competitive job market. Given our
financial  resources  and  our  track  record,  we  continue  to  be  successful  in  filling  vacated  positions  and  in  supporting  our  expanding  pipeline  of  research
programs and product candidates. We supplement our in-house expertise with outsourced capabilities when it would be cost prohibitive to build our own
in-house capabilities. For example, we outsource a substantial portion of our clinical trial work to clinical research organizations and a majority of our drug
manufacturing to contract manufacturers. Our in-house clinical development and manufacturing teams implement our development strategies and oversee
the activities of our outside vendors.

At  December  31,  2021,  we  had  87  employees  (85  full-time  and  2  part-time),  65  of  whom  were  engaged  in  research  and  development,  including  three
medical  doctors,  34  individuals  with  Doctors  of  Philosophy  (PhDs)  degrees,  and  14  scientists  with  Master  of  Science  degrees.  Substantially  all  of  our
employees  are  based  out  of  our  corporate  headquarters  in  Warminster,  PA.  None  of  our  employees  are  represented  by  a  labor  union  or  covered  by  a
collective bargaining agreement, nor have we experienced any work stoppages. We believe that relations with our employees are good.

During the COVID-19 pandemic, approximately half of our employees have continued to work at our facilities, where we have adopted health screening,
implemented  social  distancing  and  personal  protective  equipment  requirements,  enhanced  cleaning  and  sanitation  procedures,  mandated  the  COVID-19
vaccine  and  booster  for  all  onsite  employees  (with  100%  compliance),  and  modified  workspaces  to  reduce  the  potential  for  disease  transmission.  Our
employees who do not require access to our facility to perform their work have been working from home during the pandemic. The change in protocols and
working arrangements have not had a significant impact on productivity.

Competition

We face a broad range of current and potential competitors, from established global pharmaceutical companies with significant resources, to research-stage
companies.  In  addition,  we  face  competition  from  academic  and  research  institutions  and  government  agencies  for  the  discovery,  development  and
commercialization  of  novel  therapeutics  to  treat  HBV  and  coronavirus.  Many  of  our  competitors,  either  alone  or  with  their  collaborative  partners,  have
significantly greater financial, product development, technical, manufacturing, sales, and marketing resources than we do. In addition, many of our direct
competitors are large pharmaceutical companies with internal research and development departments that have significantly greater experience in testing
product candidates, obtaining FDA and other regulatory approvals of product candidates, and achieving widespread market acceptance for those products.

As  a  significant  unmet  medical  need  exists  for  HBV,  there  are  several  large  and  small  pharmaceutical  companies  focused  on  delivering  singular  or
combinations of therapeutics for the treatment of HBV. These companies include, but are not limited to, Johnson & Johnson, Roche, Vir Biotechnology,
GlaxoSmithKline,  Gilead  Sciences,  Assembly,  Enanta  Pharmaceuticals,  Aligos  Therapeutics,  Antios  and  Vaccitech.  These  companies  are  developing
products such as capsid inhibitors, RNAi agents, immune modulators, surface antigen inhibitors, and gene editing agents. These product candidates are in
various stages of pre-clinical and clinical development. Further, in addition to current investigational therapeutics in development, it is likely that additional
drugs will become available in the future for the treatment of HBV.

In addition, given the severity of the global coronavirus pandemic, several companies are developing or commercializing therapeutics for the treatment of
coronaviruses. These companies include, but are not limited to, Pfizer, Merck, Gilead, Vir Biotechnology, Shionogi, PardesBio, Enanta Pharmaceuticals,
Aligos Therapeutics and Cocrystal Pharma.

We  anticipate  that  we  will  face  competition  as  new  products  enter  the  marketplace.  Our  competitors’  products  may  be  safer,  more  effective,  or  more
effectively  marketed  and  sold  than  any  product  we  may  commercialize.  Competitive  singular  or  combination  products  may  render  one  or  more  of  our
product candidates obsolete or non-competitive before we can recover the expenses of developing and commercializing any of our product candidates. It is
also possible that the development of a cure or new treatment methods for HBV or coronaviruses could render one or more of our product candidates non-
competitive, obsolete, or reduce the demand for our product candidates.

We  believe  that  our  ability  to  compete  depends,  in  part,  upon  our  ability  to  develop  products,  successfully  complete  the  clinical  trials  and  regulatory
approval processes, and effectively market any approved products. Further, we need to attract and retain

22

qualified personnel, obtain patent protection or otherwise develop proprietary product candidates or processes, and secure sufficient capital resources for
the substantial time period between the discovery of lead compounds and their commercial sales, if any.

Manufacturing

We currently rely on third-party manufacturers to supply drug substance and drug products, including AB-729 and AB-836, for our ongoing and anticipated
clinical trials and non-clinical studies. We currently have no plans to establish any large-scale internal manufacturing facilities for our product candidates.

Government Regulation

Regulation by governmental authorities in the United States and in other countries is a significant consideration in our product development, manufacturing
and, if our product candidates are approved, marketing strategies. We expect that all our product candidates will require regulatory approval by the FDA
and  by  similar  regulatory  authorities  in  foreign  countries  prior  to  commercialization  and  will  be  subjected  to  rigorous  pre-clinical,  clinical,  and  post-
approval testing to demonstrate safety and effectiveness, as well as other significant regulatory requirements and restrictions in each jurisdiction in which
we would seek to market our products. In the United States, we are subject to extensive regulation by the FDA and other federal, state, and local regulatory
agencies.  United  States  federal  laws,  such  as  the  Federal  Food,  Drug,  and  Cosmetic  Act  (“FD&C  Act”),  and  regulations  issued  thereunder,  govern  the
testing, development, manufacture, quality control, safety, effectiveness, approval, storage, labeling, record keeping, reporting, distribution, import, export,
sale, and marketing of all biopharmaceutical products intended for therapeutic purposes. We believe that we and the third parties that work with us are in
compliance in all material respects with currently applicable laws, rules and regulations; however, any failure to comply could have a material negative
impact on our ability to successfully develop and commercialize our products, and therefore on our financial performance. In addition, the laws, rules and
regulations that apply to our business are subject to change and it is difficult to foresee whether, how, or when such changes may affect our business.

Obtaining governmental approvals to market our product candidates and maintaining ongoing compliance with applicable federal, state, local and foreign
statutes and regulations following any such approvals will require the expenditure of significant financial and human resources.

Development and Approval

The process to develop and obtain approval for biopharmaceutical products for commercialization in the United States and many other countries is lengthy,
complex and expensive, and the outcome is far from certain. Although foreign requirements for conducting clinical trials and obtaining approval may differ
in certain respects from those in the United States, there are many similarities and they often are equally rigorous and the outcome cannot be predicted with
confidence. A  key  component  of  any  submission  for  approval  in  any  jurisdiction  is  pre-clinical  and  clinical  data  demonstrating  the  product  candidate’s
safety and effectiveness.

Pre-clinical Testing. Before testing any product candidate in humans in the United States, a company must develop pre-clinical data, generally including
laboratory evaluation of the product candidate’s chemistry and formulation, as well as toxicological and pharmacological studies in animal species to assess
safety and quality. Certain types of animal studies must be conducted in compliance with the FDA’s Good Laboratory Practice (“GLP”) regulations and the
Animal Welfare Act, which is enforced by the Department of Agriculture.

IND Application. A person or entity sponsoring clinical trials in the United States to evaluate a product candidate’s safety and effectiveness must submit to
the FDA, prior to commencing such trials, an investigational new drug (“IND”) application, which contains, among other data and information, pre-clinical
testing results and provides a basis for the FDA to conclude that there is an adequate basis for testing the drug in humans. If the FDA does not object to the
IND application within 30 days of submission, the clinical testing proposed in the IND may begin. Even after the IND has gone into effect and clinical
testing has begun, the FDA may put the clinical trials on “clinical hold,” suspending (or in some cases, ending) them because of safety concerns or for other
reasons.

23

Clinical  Trials.  Clinical  trials  involve  administering  a  product  candidate  to  human  volunteers  or  patients  under  the  supervision  of  a  qualified  clinical
investigator.  Clinical  trials  are  subject  to  extensive  regulation.  In  the  United  States,  this  includes  compliance  with  the  FDA’s  bioresearch  monitoring
regulations  and  current  good  clinical  practices  (“GCP”)  requirements,  which  establish  standards  for  conducting,  recording  data  from,  and  reporting  the
results of clinical trials, with the goals of assuring that the data and results are credible and accurate and that study participants’ rights, safety and well-
being  are  protected.  Each  clinical  trial  must  be  conducted  under  a  protocol  that  details,  among  other  things,  the  study  objectives  and  parameters  for
monitoring safety and the efficacy criteria, if any, to be evaluated. The protocol is submitted to the FDA as part of the IND and reviewed by the agency.
Additionally, each clinical trial must be reviewed, approved and conducted under the auspices of an Institutional Review Board (“IRB”). The sponsor of a
clinical trial, the investigators and IRBs each must comply with requirements and restrictions that govern, among other things, obtaining informed consent
from each study subject, complying with the protocol and investigational plan, adequately monitoring the clinical trial, and timely reporting AEs. Foreign
studies conducted under an IND must meet the same requirements applicable to studies conducted in the United States. However, if a foreign study is not
conducted under an IND, the data may still be submitted to the FDA in support of a product application, if the study was conducted in accordance with
GCP and the FDA is able to validate the data.

The  sponsor  of  a  clinical  trial  or  the  sponsor’s  designated  responsible  party  may  be  required  to  register  certain  information  about  the  trial  and  disclose
certain results on government or independent registry websites, such as clinicaltrials.gov.

Clinical testing is typically performed in three phases, which may overlap or be subdivided in some cases.

In  Phase  1  trials,  the  product  candidate  is  administered  to  a  small  number  of  human  subjects  to  assess  its  safety  and  to  develop  detailed  profiles  of  its
pharmacological  and  pharmacokinetic  actions  (i.e.,  absorption,  distribution,  metabolism  and  excretion),  assess  the  early  safety  profile,  determine  side
effects associated with increasing doses, and, if possible, gain early evidence of effectiveness. Although Phase 1 trials are typically conducted in healthy
human subjects, in some instances (including, for example, with some cancer therapies) the trial subjects are patients with the targeted disease or condition.

In  Phase  2  trials,  the  product  candidate  is  administered  to  a  relatively  small  sample  of  the  intended  patient  population  to  develop  initial  data  regarding
efficacy in the targeted disease, determine the optimal dose range, and generate additional information regarding the product candidate’s safety. Additional
animal toxicology studies may precede this phase.

In Phase 3 trials, the product candidate is administered to a larger group of patients with the target disease or disorder, which may include patients with
concomitant diseases and medications. Typically, Phase 3 trials are conducted at multiple study sites and may be conducted concurrently for the sake of
time  and  efficiency.  The  purpose  of  Phase  3  clinical  trials  is  to  obtain  additional  information  about  safety  and  effectiveness  necessary  to  evaluate  the
product  candidate’s  overall  risk-benefit  profile  and  to  provide  a  basis  for  product  labeling.  Phase  3  data  often  form  the  core  basis  on  which  the  FDA
evaluates a product candidate’s safety and effectiveness when considering the product application.

The  study  sponsor,  the  FDA  or  an  IRB  may  suspend  or  terminate  a  clinical  trial  at  any  time  on  various  grounds,  including  a  determination  that  study
subjects  are  being  exposed  to  an  unacceptable  health  risk.  Success  in  early-stage  clinical  trials  does  not  assure  success  in  later-stage  clinical  trials.
Moreover, data from clinical trials are not always conclusive and may be subject to alternative interpretations that could delay, limit or prevent approval.

NDA Submission and Review. After completing the clinical studies, a sponsor seeking approval to market a product candidate in the United States submits
to  the  FDA  a  New  Drug  Application  (“NDA”).  The  NDA  is  a  comprehensive  application  intended  to  demonstrate  the  product  candidate’s  safety  and
effectiveness and includes, among other things, pre-clinical and clinical data, information about the product candidate’s composition, the sponsor’s plans
for manufacturing and packaging and proposed labeling. When an NDA is submitted, the FDA makes an initial determination as to whether the application
is  sufficiently  complete  to  be  accepted  for  review.  If  the  application  is  not,  the  FDA  may  refuse  to  accept  the  NDA  for  filing  and  request  additional
information. A refusal to file, which requires resubmission of the NDA with the requested additional information, delays review of the application.

FDA performance goals generally provide for action on an NDA within 10 months of the 60-day filing date, or within 12 months of the NDA submission.
That deadline can be extended under certain circumstances, including by the FDA’s requests for additional information. The targeted action date can also be
shortened to 6 months of the 60-day filing date, or 8 months

24

after  NDA  submission  for  product  candidates  that  are  granted  priority  review  designation  because  they  are  intended  to  treat  serious  or  life-threatening
conditions and demonstrate the potential to address unmet medical needs. The FDA has other programs to expedite development and review of product
candidates that address serious or life-threatening conditions. For example, the Fast Track program is intended to facilitate the development and review of
new drugs that demonstrate the potential to address unmet medical needs involving serious or life-threatening diseases or conditions. If a product candidate
receives Fast Track designation, the FDA may review sections of the NDA on a rolling basis, rather than requiring the entire application to be submitted to
begin the review. Product candidates with Fast Track designation also may be eligible for more frequent meetings and correspondence with the FDA about
the  product  candidate’s  development.  Another  FDA  program  intended  to  expedite  development  is  the  Accelerated  Approval  pathway,  which  allows
approval  on  the  basis  of  a  surrogate  endpoint  that  is  reasonably  likely  to  predict  clinical  benefit  or  on  an  intermediate  clinical  endpoint.  To  qualify  for
review  under  the  Accelerated  Approval  pathway,  a  product  candidate  must  treat  a  serious  condition,  provide  a  meaningful  advantage  over  available
therapies,  and  demonstrate  an  effect  on  a  surrogate  endpoint  that  is  reasonably  likely  to  predict  clinical  benefit  or  on  an  intermediate  clinical  endpoint.
Breakthrough  Therapy  designation,  which  is  available  for  product  candidates  under  development  for  serious  or  life-threatening  conditions  and  where
preliminary  clinical  evidence  shows  that  the  product  candidate  may  have  substantial  improvement  on  at  least  one  clinically  significant  endpoint  over
available therapies, means that a product candidate will be eligible for all of the benefits of Fast Track designation, as well as more intensive guidance from
the  FDA  on  an  efficient  drug  development  program  and  a  commitment  from  the  agency  to  involve  senior  FDA  managers  in  such  guidance.  Even  if  a
product candidate qualifies for Fast Track designation or Breakthrough Therapy designation, the FDA may later decide that the product no longer meets the
conditions for designation and may rescind the designation, and/or may determine that the product does not meet the standards for approval. As applicable,
we anticipate seeking to utilize these programs to expedite the development and review of our product candidates, but we cannot ensure that our product
candidates will qualify for such programs, or that we will be able to maintain such designations if we qualify for such programs.

The FDA reviews applications to determine, among other things, whether a product is safe and effective for its intended use and whether the manufacturing
controls  are  adequate  to  assure  and  preserve  the  product’s  identity,  strength,  quality,  and  purity.  For  some  NDAs,  the  FDA  may  convene  an  advisory
committee to seek insights and recommendations on issues relevant to approval of the application. Although the FDA is not bound by the recommendation
of an advisory committee, the agency considers such recommendations carefully when making decisions. Before approving a new drug product, the FDA
also  requires  that  the  facilities  at  which  the  product  will  be  manufactured  or  advanced  through  the  supply  chain  be  in  compliance  with  current  good
manufacturing practices (“GMP”) requirements and regulations governing, among other things, the manufacture, shipment, and storage of the product. The
FDA  also  can  conduct  audits  to  determine  if  the  clinical  trials  were  conducted  in  compliance  with  GCP.  After  review  of  an  NDA,  the  FDA  may  grant
marketing approval, request additional information, or issue a complete response letter (“CRL”) communicating the reasons for the agency’s decision not to
approve  the  application.  The  CRL  may  request  additional  information,  including  additional  preclinical  or  clinical  data,  for  the  FDA  to  reconsider  the
application. An NDA may be resubmitted with the deficiencies addressed, but resubmission does not guarantee approval. Data from clinical trials are not
always conclusive, and the FDA’s interpretation of data may differ from the sponsor’s. Obtaining approval can take years, requires substantial resources
and depends on a number of factors, including the severity of the targeted disease or condition, the availability of alternative treatments, and the risks and
benefits  demonstrated  in  clinical  trials.  Additionally,  as  a  condition  of  approval,  the  FDA  may  impose  restrictions  that  could  affect  the  commercial
prospects of a product and increase our costs, such as a Risk Evaluation and Mitigation Strategy (“REMS”), and/or post-approval commitments to conduct
additional clinical trials or non-clinical studies or to conduct surveillance programs to monitor the product’s effects. Under the Pediatric Research Equity
Act (“PREA”), certain applications for approval must also include an assessment, generally based on clinical study data, of the safety and effectiveness of
the subject product in relevant pediatric populations, unless a waiver or deferral is granted.

Moreover,  once  a  product  is  approved,  information  about  its  safety  or  effectiveness  from  broader  clinical  use  may  limit  or  prevent  successful
commercialization  because  of  regulatory  action,  market  forces  or  for  other  reasons.  Post-approval  modifications  to  a  drug  product,  such  as  changes  in
indications,  labeling  or  manufacturing  processes  or  facilities,  may  require  development  and  submission  of  additional  information  or  data  in  a  new  or
supplemental NDA, which would also require prior FDA approval.

Competition. The  Drug  Price  Competition  and  Patent  Term  Restoration  Act  of  1984  (the  “Hatch-Waxman  Act”)  establishes  two  abbreviated  approval
pathways for product candidates that are in some way follow-on versions of already approved branded

25

NDA products: (i) generic versions of the approved reference listed drug (“RLD”), which may be approved under an abbreviated new drug application
(“ANDA”) by showing that the generic product is the “same as” the approved product in key respects; and (ii) a product that is similar but not identical to a
listed drug, which may be approved under a 505(b)(2) NDA, in which the sponsor relies to some degree on information from investigations that were not
conducted by or for the applicant and for which the applicant has not obtained a right of reference, and submits its own product-specific data to support the
differences between the product and the listed drug.

The sponsor of an ANDA or 505(b)(2) application seeking to rely on an approved product as the RLD or listed drug must make one of several certifications
regarding  each  patent  for  the  RLD  that  is  listed  in  the  FDA  publication,  Approved  Drug  Products  with  Therapeutic  Equivalence  Evaluations,  which  is
referred  to  as  the  Orange  Book.  A  “Paragraph  I”  certification  is  the  sponsor’s  statement  that  patent  information  has  not  been  filed  for  the  RLD.  A
“Paragraph II” certification is the sponsor’s statement that the RLD’s patents have expired. A “Paragraph III” certification is the sponsor’s statement that it
will wait for the patent to expire before obtaining approval for its product. A “Paragraph IV” certification is an assertion that the patent does not block
approval of the later product, either because the patent is invalid or unenforceable or because the patent, even if valid, is not infringed by the new product.
Once the FDA accepts for filing an ANDA or 505(b)(2) application containing a Paragraph IV certification, the applicant must within 20 days provide
notice  to  the  RLD  or  listed  drug  NDA  holder  and  patent  owner  that  the  application  has  been  submitted,  and  provide  the  factual  and  legal  basis  for  the
applicant’s assertion that the patent is invalid or not infringed. If the NDA holder or patent owner files suit against the ANDA or 505(b)(2) applicant for
patent infringement within 45 days of receiving the Paragraph IV notice, the FDA is prohibited from approving the ANDA or 505(b)(2) application for a
period of 30 months or the resolution of the underlying suit, whichever is earlier.

Exclusivity  and  Patent  Protection.  In  the  United  States  and  elsewhere,  certain  regulatory  exclusivities  and  patent  rights  can  provide  an  approved  drug
product with protection from certain competitors’ products for a period of time and within a certain scope. In the United States, those protections include
regulatory exclusivity under the Hatch-Waxman Act, which provides periods of exclusivity for a branded drug product that would serve as an RLD for a
generic drug applicant filing and an ANDA under section 505(j) of the FD&C Act or as a listed drug for an applicant filing an NDA under section 505(b)
(2) of the FD&C Act. If such a product is a “new chemical entity” (“NCE”) generally meaning that the active moiety has never before been approved in
any drug, there is a period of five years from the product’s approval during which the FDA may not accept for filing any ANDA or 505(b)(2) application
for a drug with the same active moiety. An ANDA or 505(b)(2) application may be submitted after four years, however, if the sponsor of the application
makes a Paragraph IV certification (as described above). Such a product that is not an NCE may qualify for a three-year period of exclusivity if its NDA
contains new clinical data (other than bioavailability studies), derived from studies conducted by or for the sponsor, that were necessary for approval. In
this instance, the three-year exclusivity period does not preclude filing or review of an ANDA or 505(b)(2) application; rather, the FDA is precluded from
granting final approval to the ANDA or 505(b)(2) application until three years after approval of the RLD. This three-year exclusivity applies only to the
conditions of approval that required submission of the clinical data.

The Hatch-Waxman Act also provides for the restoration of a portion of the patent term lost during product development and FDA review of an NDA if
approval  of  the  application  is  the  first  permitted  commercial  marketing  of  a  drug  containing  the  active  ingredient.  The  patent  term  restoration  period  is
generally one-half the time between the effective date of the IND or the date of patent grant (whichever is later) and the date of submission of the NDA,
plus the time between the date of submission of the NDA and the date of FDA approval of the product. The maximum period of restoration is five years,
and the patent cannot be extended to more than 14 years from the date of FDA approval of the product. Only one patent claiming each approved product is
eligible for restoration and the patent holder must apply for restoration within 60 days of approval. The USPTO, in consultation with the FDA, reviews and
approves the application for patent term restoration.

Emergency Use Authorization (“EUA”). The Secretary of Health and Human Services may authorize unapproved medical products to be marketed in the
context of an actual or potential emergency that has been designated by the U.S. government. The COVID-19 pandemic has been designated as such a
national emergency. After an emergency has been announced, the Secretary of Health and Human Services may authorize the issuance of and the FDA
Commissioner  may  issue  EUAs  for  the  use  of  specific  products  based  on  criteria  established  by  the  FDCA,  including  that  the  product  at  issue  may  be
effective  in  diagnosing,  treating,  or  preventing  serious  or  life-threatening  diseases  when  there  are  no  adequate,  approved,  and  available  alternatives.
Although the criteria of an EUA differ from the criteria for approval of an NDA, EUAs nevertheless require the development and submission of data to
satisfy the relevant FDA standards, and a number of ongoing compliance obligations.

26

The FDA expects EUA holders to work toward submission of full applications, such as an NDA, as soon as possible. An EUA is also subject to additional
conditions and restrictions and is product-specific. An EUA terminates when the emergency determination underlying the EUA terminates. An EUA is not
a long-term alternative to obtaining FDA approval, licensure, or clearance for a product. FDA may revoke an EUA for a variety of reasons, including where
it is determined that the underlying health emergency no longer exists or warrants such authorization, so it is not possible to predict how long an EUA may
remain in place.

Post-Approval Regulation

Once  approved,  drug  products  are  subject  to  continuing  extensive  regulation  by  the  FDA.  If  ongoing  regulatory  requirements  are  not  met,  or  if  safety
problems occur after a product reaches market, the FDA may take actions to change the conditions under which the product is marketed, such as requiring
labeling  modifications,  restricting  distribution,  or  even  withdrawing  approval.  In  addition  to  FDA  regulation,  our  business  is  also  subject  to  extensive
federal, state, local and foreign regulation.

Good Manufacturing Practices. Companies engaged in manufacturing drug products or their components must comply with applicable GMP requirements,
which include requirements regarding organization and training of personnel, building and facilities, equipment, control of components and drug product
containers,  closures,  production  and  process  controls,  packaging  and  labeling  controls,  holding  and  distribution,  laboratory  controls  and  records  and
reports. The FDA inspects equipment, facilities and manufacturing processes before approval and conducts periodic re-inspections after approval. If, after
receiving approval, a company makes a material change in manufacturing equipment, location, or process (all of which are, to some degree, incorporated in
the  NDA),  additional  regulatory  review  and  approval  may  be  required.  Failure  to  comply  with  applicable  GMP  requirements  or  the  conditions  of  the
product’s approval may lead the FDA to take enforcement actions, such as issuing a warning letter, or to seek sanctions, including fines, civil penalties,
injunctions, suspension of manufacturing operations, imposition of operating restrictions, withdrawal of FDA approval, seizure or recall of products, and
criminal prosecution. Although we periodically monitor FDA compliance of the third parties on which we rely for manufacturing our product candidates,
we  cannot  be  certain  that  our  present  or  future  third-party  manufacturers  will  consistently  comply  with  GMP  or  other  applicable  FDA  regulatory
requirements.

Sales and Marketing. Once a product is approved, the advertising, promotion and marketing of the product will be subject to close regulation, including
with  regard  to  promotion  to  healthcare  practitioners,  direct-to-consumer  advertising,  communications  regarding  unapproved  uses,  industry-sponsored
scientific  and  educational  activities  and  promotional  activities  involving  the  internet.  In  addition  to  FDA  restrictions  on  marketing  of  pharmaceutical
products, state and federal fraud and abuse laws have been applied to restrict certain marketing practices in the pharmaceutical industry. Failure to comply
with applicable requirements in this area may subject a company to adverse publicity, investigations and enforcement action by the FDA, the Department of
Justice, the Office of the Inspector General of the Department of Health and Human Services, and/or state authorities. This could subject a company to a
range of penalties that could have a significant commercial impact, including civil and criminal fines and agreements that materially restrict the manner in
which a company promotes or distributes drug products.

Other  Requirements.  Companies  that  manufacture  or  distribute  drug  products  pursuant  to  approved  NDAs  must  meet  numerous  other  regulatory
requirements, including adverse event reporting, submission of periodic reports, and record-keeping obligations.

Fraud and Abuse Laws. At such time as we market, sell and distribute any products for which we obtain marketing approval, it is possible that our business
activities could be subject to scrutiny and enforcement under one or more federal or state health care fraud and abuse laws and regulations, which could
affect our ability to operate our business. These restrictions under applicable federal and state health care fraud and abuse laws and regulations that may
affect our ability to operate include:

•

The  federal  Anti-Kickback  Law,  which  prohibits,  among  other  things,  knowingly  or  willingly  offering,  paying,  soliciting  or  receiving
remuneration, directly or indirectly, in cash or in kind, to induce or reward the purchasing, leasing, ordering or arranging for or recommending the
purchase, lease or order of any health care items or service for which payment may be made, in whole or in part, by federal healthcare programs
such as Medicare and Medicaid. This statute has been interpreted to apply to arrangements between pharmaceutical companies on one hand and
prescribers, purchasers and formulary managers on the other. Liability may be established under the federal Anti-Kickback Law

27

without proving actual knowledge of the statute or specific intent to violate it. In addition, the government may assert that a claim including items
or services resulting from a violation of the federal Anti-Kickback Law constitutes a false or fraudulent claim for purposes of the federal civil
False Claims Act. Although there are a number of statutory exemptions and regulatory safe harbors to the federal Anti-Kickback Law protecting
certain  common  business  arrangements  and  activities  from  prosecution  or  regulatory  sanctions,  the  exemptions  and  safe  harbors  are  drawn
narrowly, and practices that do not fit squarely within an exemption or safe harbor, or for which no exception or safe harbor is available, may be
subject to scrutiny.

•

•

The  federal  civil  False  Claims  Act,  which  prohibits,  among  other  things,  individuals  or  entities  from  knowingly  presenting,  or  causing  to  be
presented, a false or fraudulent claim for payment of government funds or knowingly making, using or causing to be made or used, a false record
or  statement  material  to  an  obligation  to  pay  money  to  the  government  or  knowingly  concealing  or  knowingly  and  improperly  avoiding,
decreasing or concealing an obligation to pay money to the federal government. Actions under the False Claims Act may be brought by the United
States Attorney General or as a qui tam action by a private individual (a whistleblower) in the name of the government and the individual, and the
whistleblower  may  share  in  any  monetary  recovery.  Many  pharmaceutical  and  other  healthcare  companies  have  been  investigated  and  have
reached substantial financial settlements with the federal government under the civil False Claims Act for a variety of alleged improper marketing
activities,  including:  providing  free  product  to  customers  with  the  expectation  that  the  customers  would  bill  federal  programs  for  the  product;
providing  sham  consulting  fees,  grants,  free  travel  and  other  benefits  to  physicians  to  induce  them  to  prescribe  the  company’s  products;  and
inflating prices reported to private price publication services, which are used to set drug payment rates under government healthcare programs. In
addition, in recent years the government has pursued civil False Claims Act cases against a number of pharmaceutical companies for causing false
claims to be submitted as a result of the marketing of their products for unapproved, and thus non-reimbursable, uses. Because of the threat of
treble  damages  and  mandatory  penalties  per  false  or  fraudulent  claim  or  statement,  healthcare  and  pharmaceutical  companies  often  resolve
allegations without admissions of liability for significant and material amounts. Pharmaceutical and other healthcare companies also are subject to
other  federal  false  claim  laws,  including,  among  others,  federal  criminal  healthcare  fraud  and  false  statement  statutes  that  extend  to  non-
government health benefit programs.

The  fraud  provisions  of  the  Health  Insurance  Portability  and  Accountability  Act  of  1996  (“HIPAA”),  which  impose  criminal  liability  for
knowingly  and  willfully  executing  a  scheme  to  defraud  any  healthcare  benefit  program,  including  private  third-party  payors,  and  prohibit
knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement or
representation,  or  making  or  using  any  false  writing  or  document  knowing  the  same  to  contain  any  materially  false  fictitious  or  fraudulent
statement or entry, in connection with the delivery of or payment for healthcare benefits, items or services.

• Analogous  state  and  local  laws  and  regulations,  such  as  state  anti-kickback  and  false  claims  laws,  which  may  apply  to  sales  or  marketing
arrangements and claims involving healthcare items or services reimbursed by non-governmental third-party payors, including private insurers;
state and foreign laws that require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and
the  relevant  compliance  guidance  promulgated  by  the  federal  government  or  otherwise  restrict  payments  that  may  be  made  to  healthcare
providers;  state  laws  that  restrict  the  ability  of  manufacturers  to  offer  co-pay  support  to  patients  for  certain  prescription  drugs;  and  state  and
foreign laws that require drug manufacturers to report information related to clinical trials, or information related to payments and other transfers
of  value  to  physicians  and  other  healthcare  providers  or  marketing  expenditures;  state  laws  and  local  ordinances  that  require  identification  or
licensing of sales representatives.

•

The federal Physician Payment Sunshine Act, being implemented as the Open Payments Program, which requires manufacturers of drugs, devices,
biologics,  and  medical  supplies  for  which  payment  is  available  under  Medicare,  Medicaid  or  the  Children’s  Health  Insurance  Program  (with
certain  exceptions)  to  report  annually  to  the  Centers  for  Medicare  and  Medicaid  Services  (“CMS”)  information  related  to  direct  or  indirect
payments and other transfers of value to physicians and teaching hospitals, as well as ownership and investment interests held in the company by
physicians  and  their  immediate  family  members.  Beginning  in  2022,  applicable  manufacturers  also  will  be  required  to  report  information
regarding  payments  and  transfers  of  value  provided  (starting  in  2021)  to  physician  assistants,  nurse  practitioners,  clinical  nurse  specialists,
certified nurse anesthetists, and certified nurse-midwives.

28

•

The federal Foreign Corrupt Practices Act of 1997 and other similar anti-bribery laws in other jurisdictions generally prohibit companies and their
intermediaries  from  providing  money  or  anything  of  value  to  officials  of  foreign  governments,  foreign  political  parties  or  international
organizations  with  the  intent  to  obtain  or  retain  business  or  seek  a  business  advantage.  Recently,  there  has  been  a  substantial  increase  in  anti-
bribery law enforcement activity by United States regulators, with more frequent and aggressive investigations and enforcement proceedings by
both the Department of Justice and the United States Securities and Exchange Commission (the “SEC”). Violations of United States or foreign
laws  or  regulations  could  result  in  the  imposition  of  substantial  fines,  interruptions  of  business,  loss  of  supplier,  vendor  or  other  third-party
relationships, termination of necessary licenses and permits and other legal or equitable sanctions. Other internal or government investigations or
legal or regulatory proceedings, including lawsuits brought by private litigants, may also follow as a consequence.

Violations  of  any  of  the  laws  described  above  or  any  other  governmental  regulations  are  punishable  by  significant  civil,  criminal  and  administrative
penalties, damages, fines and exclusion from government-funded healthcare programs, such as Medicare and Medicaid. Although  compliance  programs
can  mitigate  the  risk  of  investigation  and  prosecution  for  violations  of  these  laws,  the  risks  cannot  be  entirely  eliminated.  Moreover,  achieving  and
sustaining compliance with applicable federal and state privacy, security and fraud laws may prove costly.

Privacy Laws. We are also subject to federal, state and foreign laws and regulations governing data privacy and security of health information, and the
collection, use and disclosure, and protection of health-related and other personal information. The legislative and regulatory landscape for privacy and data
protection continues to evolve, and there has been an increasing focus on privacy and data protection issues that may affect our business, including recently
enacted  laws  in  all  jurisdictions  where  we  operate.    Numerous  federal  and  state  laws,  including  state  security  breach  notification  laws,  state  health
information privacy laws, state genetic privacy laws, and federal and state consumer protection and privacy laws, (including, for example, Section 5 of the
Federal Trade Commission Act (“FTC Act”), and the California Consumer Privacy Act (“CCPA”)) govern the collection, use and disclosure of personal
information. These laws may differ from each other in significant ways, thus complicating compliance efforts. Federal regulators, state attorneys general,
and  plaintiffs’  attorneys  have  been  and  will  likely  continue  to  be  active  in  this  space.  Activities  outside  of  the  U.S.  implicate  local  and  national  data
protection standards, impose additional compliance requirements and generate additional risks of enforcement for non-compliance. The European Union’s
General  Data  Protection  Regulation  (“GDPR”)  and  other  data  protection,  privacy  and  similar  national,  state/provincial  and  local  laws  may  restrict  the
access, use and disclosure of patient health information abroad. Compliance efforts will likely be an increasing and substantial cost in the future.

Failure to comply with such laws and regulations could result in government enforcement actions and create liability for us (including the imposition of
significant penalties), private litigation and/or adverse publicity that could negatively affect our business. In addition, if we successfully commercialize our
product candidates, we may obtain patient health information from healthcare providers who prescribe our products and research institutions we collaborate
with, and they are subject to privacy and security requirements under HIPAA.  Although we are not directly subject to HIPAA other than potentially with
respect to providing certain employee benefits, we could potentially be subject to criminal penalties if we, or our affiliates or our agents knowingly obtain,
use  or  disclose  individually  identifiable  health  information  maintained  by  a  HIPAA-covered  entity  in  a  manner  that  is  not  authorized  or  permitted  by
HIPAA.

The  Federal  Trade  Commission  (“FTC”)  also  sets  expectations  for  failing  to  take  appropriate  steps  to  keep  consumers’  personal  information  secure,  or
failing to provide a level of security commensurate to promises made to individual about the security of their personal information (such as in a privacy
notice)  may  constitute  unfair  or  deceptive  acts  or  practices  in  violation  of  Section  5(a)  of  the  FTC  Act.  The  FTC  expects  a  company’s  data  security
measures to be reasonable and appropriate in light of the sensitivity and volume of consumer information it holds, the size and complexity of its business,
and the cost of available tools to improve security and reduce vulnerabilities. Individually identifiable health information is considered sensitive data that
merits stronger safeguards. With respect to privacy, the FTC also sets expectations for failing to honor the privacy promises made to individuals about how
the company handles consumers’ personal information; such failure may also constitute unfair or deceptive acts or practices in violation of the FTC Act.
Enforcement by the FTC under the FTC Act can result in civil penalties or enforcement actions.

In California, the CCPA establishes certain requirements for data use and sharing transparency and provides California residents certain rights concerning
the use, disclosure, and retention of their personal information. The CCPA and its

29

implementing regulations have already been amended multiple times since their enactment. In November 2020, California voters approved the California
Privacy Rights Act (“CPRA”) ballot initiative which introduced significant amendments to the CCPA and established and funded a dedicated California
privacy regulator, the California Privacy Protection Agency (“CPPA”). The amendments introduced by the CPRA go into effect on January 1, 2023, and
new implementing regulations are expected to be introduced by the CPPA. Failure to comply with the CCPA may result in, among other things, significant
civil  penalties  and  injunctive  relief,  or  statutory  or  actual  damages.  In  addition,  California  residents  have  the  right  to  bring  a  private  right  of  action  in
connection  with  certain  types  of  incidents.  These  claims  may  result  in  significant  liability  and  damages.  Similarly,  there  are  a  number  of  legislative
proposals in the United States, at both the federal and state level, that could impose new obligations or limitations in areas affecting our business. These
laws and regulations are evolving and subject to interpretation, and may impose limitations on our activities or otherwise adversely affect our business.

Activities outside of the U.S. implicate local and national data protection standards, impose additional compliance requirements and generate additional
risks of enforcement for non-compliance. The European Union’s GDPR, which imposes fines of up to EUR 20 million or 4% of the annual global revenue
of a noncompliant company, whichever is greater, and other data protection, privacy and similar national, state/provincial and local laws may also restrict
the access, use and disclosure of patient health information abroad. We may be required to expend significant capital and other resources to ensure ongoing
compliance  with  applicable  privacy  and  data  security  laws,  to  protect  against  security  breaches  and  hackers,  or  to  alleviate  problems  caused  by  such
breaches.  Compliance  with  these  laws  is  difficult,  constantly  evolving,  time  consuming,  and  requires  a  flexible  privacy  framework  and  substantial
resources.  Compliance  efforts  will  likely  be  an  increasing  and  substantial  cost  in  the  future.  There  are  also  a  number  of  legislative  proposals  in  the
European Union, the United States, at both the federal and state level, as well as other jurisdictions that could impose new obligations or limitations in
areas affecting our business. In addition, some countries are considering or have passed legislation implementing data protection requirements or requiring
local storage and processing of data or similar requirements that could increase the cost and complexity of delivering our services and research activities.
These  laws  and  regulations,  as  well  as  any  associated  claims,  inquiries,  or  investigations  or  any  other  government  actions  may  lead  to  unfavorable
outcomes including increased compliance costs, delays or impediments in the development of new products, negative publicity, increased operating costs,
diversion of management time and attention, and remedies that harm our business, including fines or demands or orders that we modify or cease existing
business practices.

Coverage and Reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any product candidates for which we may obtain regulatory approval. The
regulations that govern marketing approvals, pricing and reimbursement for new drug products vary widely from country to country. Current  and  future
legislation may significantly change the approval requirements in ways that could involve additional costs and cause delays in obtaining approvals. Some
countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing or
product licensing approval is granted. In  some  foreign  markets,  prescription  pharmaceutical  pricing  remains  subject  to  continuing  governmental  control
even after initial approval is granted. As a result, we might obtain marketing approval for a product in a particular country, but then be subject to price
regulations that delay our commercial launch of the product, possibly for lengthy time periods, which could negatively impact the revenues we are able to
generate from the sale of the product in that particular country. Adverse pricing limitations may hinder our ability to recoup our investment in one or more
product candidates even if our product candidates obtain marketing approval.

Our  ability  to  commercialize  any  products  successfully  also  will  depend  in  part  on  the  extent  to  which  coverage  and  adequate  reimbursement  for  these
products and related treatments will be available in a timely manner from third-party payors, including government healthcare programs such as Medicare
and  Medicaid,  commercial  health  insurers  and  managed  care  organizations.  Government  authorities  and  other  third-party  payors,  such  as  private  health
insurers and health maintenance organizations, determine which medications they will cover and establish reimbursement levels. Third-party payors may
limit coverage to specific products on an approved list, or formulary, which may not include all of the FDA-approved products for a particular indication.
The process for determining whether a payor will provide coverage for a product may be separate from the process for setting the price or reimbursement
rate that the payor will pay for the product once coverage is approved.

A primary trend in the United States healthcare industry and elsewhere is cost containment. Government healthcare programs and other third-party payors
are increasingly challenging the prices charged for medical products and services and examining

30

the medical necessity and cost-effectiveness of medical products and services, in addition to their safety and efficacy, and have attempted to control costs
by  limiting  coverage  and  the  amount  of  reimbursement  for  particular  medications.  Increasingly,  third-party  payors  are  requiring  that  drug  companies
provide them with predetermined discounts from list prices and are challenging the prices charged for medical products. We cannot be sure that coverage
and  reimbursement  will  be  available  promptly  or  at  all  for  any  product  that  we  commercialize  and,  if  reimbursement  is  available,  what  the  level  of
reimbursement will be. Moreover, eligibility for coverage and reimbursement does not imply that any drug will be paid for in all cases. Limited coverage
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  reimbursement  is  available  only  to  limited  levels,  we  may  not  successfully  commercialize  any  product  candidate  for  which  we  obtain
marketing approval.

Obtaining  coverage  and  adequate  reimbursement  is  a  time-consuming  and  costly  process.  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, eligibility for coverage and reimbursement does not imply that a drug will be paid for in all cases or at a rate that
covers our costs, including research, development, manufacture, sale and distribution. Interim reimbursement levels for new drugs, if applicable, may also
not be sufficient 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, may be based on reimbursement levels already set for lower cost drugs and may be incorporated into existing payments for other services.
Net prices for drugs may be reduced by mandatory discounts or rebates required by government healthcare programs or private payors 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 United States. Limited coverage
may impact the demand for, or the price of, any product candidate for which we obtain marketing approval. Third-party payors also may seek additional
clinical evidence, including expensive pharmacoeconomic studies, beyond the data required to obtain marketing approval, demonstrating clinical benefits
and value in specific patient populations, before covering our products for those patients. If reimbursement is available only for limited indications, we may
not be able to successfully commercialize any product candidate for which we obtain marketing approval. Our inability to promptly obtain coverage and
profitable reimbursement rates from both government-funded and private payors 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.

If we successfully commercialize any of our products, we may participate in the Medicaid Drug Rebate Program. Participation is required for federal funds
to be available for our products under Medicaid and Medicare Part B. Under the Medicaid Drug Rebate Program, we would be required to pay a rebate to
each state Medicaid program for our covered outpatient drugs that are dispensed to Medicaid beneficiaries and paid for by a state Medicaid program as a
condition of having federal funds being made available to the states for our drugs under Medicaid and under Part B of the Medicare program.

Federal law requires that any company that participates in the Medicaid Drug Rebate Program also participate in the Public Health Service’s 340B drug
pricing program in order for federal funds to be available for the manufacturer’s drugs under Medicaid and Medicare Part B. The 340B program requires
participating manufacturers to agree to charge statutorily-defined covered entities no more than the 340B “ceiling price” for the manufacturer’s covered
outpatient drugs. These 340B covered entities include a variety of community health clinics and other entities that receive health services grants from the
Public Health Service, as well as hospitals that serve a disproportionate share of low-income patients.

Medicare is a federal program that is administered by the federal government that covers individuals age 65 and over or that are disabled as well as those
with certain health conditions. Medicare Part B generally covers drugs that must be administered by physicians or other health care practitioners; among
others.  Medicare  Part  B  generally  pays  for  such  drugs  under  a  payment  methodology  based  on  the  average  sales  price  of  the  drugs.  Manufacturers  are
required  to  report  average  sales  price  information  to  CMS  on  a  quarterly  basis.  The  manufacturer-submitted  information  is  used  by  CMS  to  calculate
Medicare payment rates. Effective January 1, 2023, manufacturers will be obligated to pay refunds to Medicare for single source drugs or biologicals, or
biosimilar biological products, reimbursed under Medicare Part B and packaged in single-dose containers or single-use packages, for units of discarded
drug reimbursed by Medicare Part B in excess of 10 percent of total allowed charges under Medicare Part B for that drug. Manufacturers that fail to pay
refunds could be subject to civil monetary penalties of 125 percent of the refund amount.

31

Medicare  Part  D  generally  provides  coverage  to  enrolled  Medicare  patients  for  self-administered  drugs  (i.e.,  drugs  that  are  not  administered  by  a
physician). Medicare Part D is administered by private prescription drug plans approved by the U.S. government and, subject to detailed program rules and
government oversight, each drug plan establishes its own Medicare Part D formulary for prescription drug coverage and pricing, which the drug plan may
modify from time to time. The prescription drug plans negotiate pricing with manufacturers and pharmacies, and may condition formulary placement on
the availability of manufacturer discounts. In addition, manufacturers are required to provide a 70% discount on brand name prescription drugs utilized by
Medicare Part D beneficiaries when those beneficiaries are in the coverage gap phase of the Part D benefit design.

In addition, in order to be eligible to have its products paid for with federal funds under the Medicaid and Medicare Part B programs and purchased by the
Department of Veterans Affairs (the “VA”), Department of Defense (“DoD”), Public Health Service, and Coast Guard (the “Big Four agencies”) and certain
federal  grantees,  a  manufacturer  also  must  participate  in  the  VA  Federal  Supply  Schedule  (“FSS”)  pricing  program,  established  by  Section  603  of  the
Veterans Health Care Act of 1992 (the “VHCA”). Under this program, the manufacturer is obligated to make its covered drugs (innovator multiple source
drugs, single source drugs, and biologics) available for procurement on an FSS contract and charge a price to the Big Four agencies that is no higher than
the Federal Ceiling Price (“FCP”), which is a price calculated pursuant to a statutory formula. The FCP is derived from a calculated price point called the
“non-federal average manufacturer price” (“Non-FAMP”), which we will be required to calculate and report to the VA on a quarterly and annual basis.
Moreover, pursuant to Defense Health Agency (“DHA”) regulations, manufacturers must provide rebates on utilization of their innovator and single source
products that are dispensed to TRICARE beneficiaries by TRICARE network retail pharmacies. The formula for determining the rebate is established in the
regulations and is based on the difference between the annual non-federal average manufacturer price and the Federal Ceiling Price, each required to be
calculated  by  us  under  the  VHCA.  The  requirements  under  the  Medicaid  Drug  Rebate  Program,  340B  program,  FSS,  and  TRICARE  programs  could
reduce the revenue we may generate from any products that are commercialized in the future and could adversely affect our business and operating results.

United States Healthcare Reform

The United States and many foreign jurisdictions have enacted or proposed legislative and regulatory changes affecting the healthcare system that could
prevent  or  delay  marketing  approval  of  our  product  candidates,  restrict  or  regulate  post-approval  activities  and  affect  our  ability  to  profitably  sell  any
product  candidate  for  which  we  obtain  marketing  approval.  The  United  States  government,  state  legislatures  and  foreign  governments  also  have  shown
significant  interest  in  implementing  cost-containment  programs  to  limit  the  growth  of  government-paid  healthcare  costs,  including  price  controls,
restrictions on reimbursement and requirements for substitution of generic products for branded prescription drugs.

In recent years, Congress has considered reductions in Medicare reimbursement levels for drugs administered by physicians. The Centers for Medicare &
Medicaid Services (CMS), the agency that administers the Medicare and Medicaid programs, has authority to revise reimbursement rates and to implement
coverage restrictions. Cost reduction initiatives and changes in coverage implemented through legislation or regulation could decrease utilization of and
reimbursement for any approved products, which in turn would affect the price we can receive for those products. Any reduction in reimbursement from
Medicare and other government programs may result in a similar reduction in payment from commercial payers. The implementation of cost containment
measures or other healthcare reforms may prevent us from being able to generate revenue, attain profitability, or commercialize our products.

The Affordable Care Act, as amended (the “Affordable Care Act”), has substantially changed the way healthcare is financed by both governmental and
private insurers, and has significantly impacted the pharmaceutical industry. The Affordable Care Act was intended to broaden access to health insurance,
reduce  or  constrain  the  growth  of  healthcare  spending,  enhance  remedies  against  healthcare  fraud  and  abuse,  add  new  transparency  requirements  for
healthcare and health insurance industries, impose new taxes and fees on pharmaceutical and medical device manufacturers, and impose additional health
policy reforms.

Certain provisions of the Affordable Care Act have been subject to judicial challenges as well as efforts to modify them or to alter their interpretation and
implementation.  For  example,  the  Tax  Cuts  and  Jobs  Act,  enacted  on  December  22,  2017,  eliminated  the  tax-based  shared  responsibility  payment  for
individuals who fail to maintain minimum essential coverage under section 5000A of the Internal Revenue Code of 1986, commonly referred to as the
individual mandate, effective January 1, 2019. Additional legislative changes, regulatory changes, and judicial challenges related to the Affordable Care
Act remain possible. It is unclear how efforts modify or invalidate the Affordable Care Act or its implementing regulations, or portions

32

thereof, will affect our business. Any such changes could decrease the number of individuals with health coverage. It is possible that the Affordable Care
Act,  as  currently  enacted  or  as  it  may  be  amended  in  the  future,  and  other  healthcare  reform  measures  that  may  be  adopted  in  the  future  could  have  a
material adverse effect on our industry generally and on our ability to successfully commercialize our product candidates, if approved.

In addition, other legislative changes have been proposed since the Affordable Care Act was enacted. For example, the Budget Control Act of 2011, among
other  things,  created  the  Joint  Select  Committee  on  Deficit  Reduction  to  recommend  to  Congress  proposals  for  spending  reductions.  The  Joint  Select
Committee did not achieve a targeted deficit reduction, which triggered the legislation’s automatic reductions. In concert with subsequent legislation, this
has resulted in aggregate reductions to Medicare payments to providers of, on average, 2% per fiscal year through 2030 (with the exception of a temporary
suspension from May 1, 2020 through March 31, 2022, due to the COVID-19 pandemic). The law provides for 1% Medicare sequestration in the second
quarter of 2022 and allows the full 2% sequestration thereafter until 2030. To offset the temporary suspension during the COVID-19 pandemic, in 2030, the
sequestration will be 2.25% for the first half of the year, and 3% in the second half of the year. As long as these cuts remain in effect, they could adversely
impact payment for any of our products that are reimbursed under Medicare, once commercialized.

We expect that the Affordable Care Act, as well as other healthcare reform measures that have been adopted and may be adopted in the future, may result in
more rigorous coverage criteria and new payment methodologies, and in additional downward pressure on coverage and payment and the price that we
receive  for  any  approved  product,  and  could  seriously  harm  our  future  revenues.  Any  reduction  in  reimbursement  from  Medicare,  Medicaid  or  other
government  programs  may  result  in  a  similar  reduction  in  payments  from  private  payors.  The  implementation  of  cost  containment  measures  or  other
healthcare reforms may prevent us from being able to generate revenue, attain profitability or commercialize our products.

Foreign Regulation

In addition to regulations in the United States, we will be subject to a number of significant regulations in other jurisdictions regarding research, clinical
trials, approval, manufacturing, distribution, marketing and promotion, safety reporting, privacy and pricing and reimbursement. These requirements and
restrictions vary from country to country, but in many instances are similar to the United States requirements, and failure to comply with them could have
similar negative effects as noncompliance in the United States.

Corporate Information

Tekmira Pharmaceuticals Corporation (“Tekmira”) was incorporated pursuant to the British Columbia Business Corporations Act (“BCBCA”) on October
6,  2005,  and  commenced  active  business  on  April  30,  2007,  when  Tekmira  and  its  parent  company,  Inex  Pharmaceuticals  Corporation  (“Inex”),  were
reorganized under a statutory plan of arrangement (the “Plan of Arrangement”) completed under the provisions of the BCBCA. Pursuant to the Plan of
Arrangement, all of Inex’s business was transferred to Tekmira.

Protiva Biotherapeutics Inc. (“Protiva”) was acquired on May 30, 2008.

On March 4, 2015, we completed a business combination pursuant to which OnCore Biopharma, Inc. (“OnCore”) became our wholly-owned subsidiary of
Tekmira.

On July 31, 2015, we changed our corporate name from Tekmira Pharmaceuticals Corporation to Arbutus Biopharma Corporation and OnCore changed its
corporate name to Arbutus Biopharma, Inc.

On January 1, 2018, Protiva was amalgamated with Arbutus Biopharma Corporation.

We had one wholly-owned subsidiary as of December 31, 2021: Arbutus Biopharma, Inc.

Our principal executive office is located at 701 Veterans Circle, Warminster, Pennsylvania, USA, 18974, and our telephone number is (267) 469-0914.

33

Unless stated otherwise or the context otherwise requires, references herein to “Arbutus”, “we”, “us” and “our” refer to Arbutus Biopharma Corporation,
and, unless the context requires otherwise, the subsidiaries through which we conduct business.

Investor Information

We are a reporting issuer in Canada under the securities laws of each of the Provinces of Canada. Our common shares trade on the Nasdaq Global Select
Market under the symbol “ABUS”. We maintain a website at http://www.arbutusbio.com. The information on our website is not incorporated by reference
into this Annual Report on Form 10-K and should not be considered to be a part of this Annual Report on Form 10-K. Our website address is included in
this Annual Report on Form 10-K as an inactive technical reference only. Copies of this Annual Report on Form 10-K, and our other annual reports on
Form  10-K,  proxy  statements,  quarterly  reports  on  Form  10-Q,  current  reports  on  Form  8-K  and,  if  applicable,  amendments  to  those  reports  filed  or
furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, are available free of charge through our website under
“Investors – Financial Information – SEC Filings” as soon as reasonably practicable after we electronically file these materials with, or otherwise furnish
them to, the SEC. The SEC maintains an Internet site that contains reports, proxy and information statements and other information regarding issuers that
file electronically with the SEC at www.sec.gov.

34

Item 1A. Risk Factors

Our business is subject to substantial risks and uncertainties. The occurrence of any of the following risks and uncertainties, either alone or taken together,
could materially and adversely affect our business, financial condition, results of operations or prospects. In these circumstances, the market price of our
common shares could decline and you may lose all or part of your investment. The risks and uncertainties described below are not the only ones we face.
Risks and uncertainties of general applicability and additional risks and uncertainties not currently known to us or that we currently deem to be immaterial
may also materially and adversely affect our business, financial condition, results of operations or prospects.

Risks Related to Our Business, Our Financial Results and Need for Additional Capital

We  are  in  the  early  stages  of  our  development,  and  there  is  a  limited  amount  of  information  about  us  upon  which  you  can  evaluate  our  product
candidates.

We  have  not  begun  to  market  or  generate  revenues  from  the  commercialization  of  any  of  our  product  candidates.  We  have  only  a  limited  history  upon
which you can evaluate our business and prospects as our product candidates are still at an early stage of development and thus we have limited experience
and have not yet demonstrated an ability to successfully overcome many of the risks and uncertainties frequently encountered by companies in new and
rapidly evolving fields, particularly in the biopharmaceutical area. For example, to execute our business plan, we will need to successfully:

execute research and development activities using technologies involved in the development of our product candidates;
build, maintain and protect a strong intellectual property portfolio;
gain regulatory approval and market acceptance for the commercialization of any product candidates we develop;
conduct sales and marketing activities if any of our product candidates are approved;
develop and maintain successful strategic relationships; and

•
•
•
•
•
• manage our spending and cash requirements as our expenses are expected to continue to increase due to research and pre-clinical work, clinical

trials, regulatory approvals, commercialization and maintaining our intellectual property portfolio.

If  we  are  unsuccessful  in  accomplishing  these  objectives,  we  may  not  be  able  to  develop  our  product  candidates,  raise  capital,  expand  our  business  or
continue  our  operations. The  approach  we  are  taking  to  discover  and  develop  novel  product  candidates  is  unproven  and  may  never  lead  to  marketable
products.

We are concentrating and intend to continue to concentrate our internal research and development efforts primarily on the discovery and development of
product candidates targeting cHBV in order to ultimately develop a functional curative combination regimen, as well as on therapies to treat coronaviruses,
including  COVID-19.  Our  future  success  depends  in  part  on  the  successful  development  of  these  product  candidates. Our  approach  to  the  treatment  of
HBV is unproven, and we do not know whether we will be able to develop any products of commercial value.

There is no known functional cure for HBV. Any compounds that we develop may not effectively address HBV persistence. Even if we are able to develop
compounds  that  address  one  or  more  of  the  key  factors  in  the  HBV  life  cycle  (e.g.,  HBV  replication,  HBsAg  expression  and  immune  reactivation),
targeting these key factors has not been proven to functionally cure HBV. If we cannot develop compounds to achieve our goal of functionally curing HBV
internally, we may be unable to acquire additional product candidates on terms acceptable to us, or at all. Even if we are able to acquire or develop product
candidates that address one of these mechanisms of action in pre-clinical studies, we may not succeed in demonstrating safety and efficacy of the product
candidate in clinical trials. If we are unable to identify suitable compounds for pre-clinical and clinical development, we will not succeed in realizing our
goal of a functional curative combination regimen for HBV.

We  will  require  substantial  additional  capital  to  fund  our  operations.  Additional  funds  may  be  dilutive  to  shareholders  or  impose  operational
restrictions. Further, if additional capital is not available, we may need to delay, limit or eliminate our research, development and commercialization
programs and modify our business strategy.

Our principal sources of liquidity are cash, cash equivalents and marketable securities, which were $191.0 million as of December 31, 2021. In January
2022, we received a $40 million upfront payment and $15 million of proceeds resulting from the sale of common shares to Qilu as part of the technology
transfer and exclusive licensing agreement to develop and commercialize AB-729 in China. We believe that our $191.0 million of cash and investments in
marketable securities as of

35

December 31, 2021 plus the $55 million of proceeds received in January 2022 from our partnership with Qilu will be sufficient to fund our operations into
the second quarter of 2024. However, changing circumstances may cause us to consume capital faster than we currently anticipate, and we may need to
spend more money than currently expected because of such circumstances. Within the next several years, substantial additional funds will be required to
continue  with  the  active  development  of  our  pipeline  product  candidates  and  technologies.  In  particular,  our  funding  needs  may  vary  depending  on  a
number of factors including:

•
•
•
•

revenues earned from our licensing partners, including Alnylam, Acuitas, Gritstone Oncology, Inc. (“Gritstone”) and Qilu;
the extent to which we continue the development of our product candidates or form licensing arrangements to advance our product candidates;
our decisions to in-license or acquire additional products, additional product candidates or technology for development;
our ability to attract and retain development or commercialization partners, and their effectiveness in carrying out the development and ultimate
commercialization of one or more of our product candidates;

• whether  batches  of  product  candidates  that  we  manufacture  fail  to  meet  specifications  resulting  in  clinical  trial  delays  and  investigational  and

remanufacturing costs;
the decisions, and the timing of decisions, made by health regulatory agencies regarding our technology and product candidates;
competing products, product candidates and technological and market developments; and
prosecuting and enforcing our patent claims and other intellectual property rights.

•
•
•

We  will  seek  to  obtain  funding  to  maintain  and  advance  our  business  from  a  variety  of  sources  including  equity  financings,  debt  financings,  licensing
agreements, partnerships, government grants and contracts and other strategic transactions and funding opportunities. There can be no assurance that we
will be able to complete any such transaction on acceptable terms or otherwise.

If we are able to raise additional capital through the issuance of equity securities, the percentage ownership of our current shareholders will be reduced. In
addition, we may issue equity as part of the consideration to our licensors, to compensate consultants or to settle outstanding payables, all of which could
cause our shareholders to experience additional dilution in net book value per share. Any such additional equity securities may have rights, preferences and
privileges senior to those of the holders of our common shares.

Debt financing, if available, will result in increased fixed payment obligations and may involve agreements that include covenants limiting or restricting
our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends. Any debt financing or additional
equity that we raise may contain terms, such as liquidation and other preferences, which are not favorable to us or our existing shareholders. If we raise
additional  funds  through  corporate  collaborations,  partnerships  or  other  strategic  transactions,  it  may  be  necessary  to  relinquish  valuable  rights  to  our
product candidates, our technologies or future revenue streams or to grant licenses or sell assets on terms that may not be favorable to us.

If we are unable to raise additional capital in sufficient amounts or on terms acceptable to us, we will need to curtail and reduce our operations and costs,
and modify our business strategy which may require us to, among other things:

•

•

•

•

significantly delay, scale back or discontinue the development or commercialization of one or more of our product candidates or one or more of
our research and development initiatives;
seek collaborators for one or more of our product candidates or one or more of our research and development initiatives at an earlier stage than
otherwise would be desirable or on terms that are less favorable than might otherwise be available;
sell or license on unfavorable terms our rights to one or more of our technologies, product candidates or research and development initiatives that
we otherwise would seek to develop or commercialize ourselves; or
cease operations.

36

We have incurred losses in nearly every year since our inception and we anticipate that we will not achieve profits for the foreseeable future. To date,
we have had no product revenues.

With the exception of the years ended December 31, 2006 and December 31, 2012, we have incurred losses each fiscal year since inception through the
year ended December 31, 2021 and have not received any revenues other than from research and development collaborations, royalties, license fees and
milestone  payments.  From  inception  to  December  31,  2021,  we  have  an  accumulated  net  deficit  of  approximately  $1.1  billion.  Investment  in  drug
development is highly speculative because it entails substantial upfront capital expenditures and significant risk that a product candidate will fail to gain
regulatory  approval  or  become  commercially  viable.  We  continue  to  incur  significant  research,  development  and  other  expenses  related  to  our  ongoing
operations, including development of our product candidates. We do not expect to achieve profits until such time as product sales, milestone payments and
royalty payments, if any, generate sufficient revenues to fund our continuing operations. We cannot predict if we will ever achieve profitability and, if we
do, we may not be able to remain consistently profitable or increase our profitability.

We  expect  to  continue  to  incur  significant  expenses  and  operating  losses  for  the  foreseeable  future.  We  anticipate  that  our  expenses  will  continue  to  be
significant if and as we:

continue our research and pre-clinical and clinical development of our product candidates;
•
initiate additional pre-clinical, clinical or other studies or trials for our product candidates;
•
continue or expand our licensing arrangements with our licensing partners;
•
change or add additional manufacturers or suppliers;
•
seek regulatory approvals for our product candidates that successfully complete clinical trials;
•
establish a sales, marketing and distribution infrastructure to commercialize any product candidates for which we may obtain regulatory approval;
•
seek to identify and validate additional product candidates;
•
•
acquire or in-license other product candidates and technologies;
• maintain, protect and expand our intellectual property portfolio;
•
•
•

attract and retain skilled personnel;
create additional infrastructure to support our research, product development and planned future commercialization efforts; and
experience any delays or encounter issues with any of the above.

The  net  losses  we  incur  may  fluctuate  significantly  from  quarter  to  quarter  and  year  to  year,  such  that  a  period-to-period  comparison  of  our  results  of
operations may not be a good indication of our future performance.

The COVID-19 pandemic could adversely impact our business, including our clinical development plans.

We continue to monitor the effects of COVID-19, which has caused significant disruptions around the world. We may continue to experience disruptions as
a result of the COVID-19 pandemic that could severely impact our business, including:

•

•

•

•

interruption of key manufacturing, research and clinical development activities due to limitations on work and travel imposed or recommended by
federal or state governments, employers and others;
delays  or  difficulties  in  clinical  trial  site  operations,  including  difficulties  in  recruiting  clinical  site  investigators  and  clinical  site  staff  and
difficulties in enrolling subjects or treating subjects in active trials;
the  diversion  of  healthcare  resources  away  from  the  conduct  of  clinical  trial  matters  to  focus  on  COVID-19  pandemic  concerns,  including  the
administration  of  COVID-19  vaccines,  which  could  negatively  affect  the  attention  of  physicians  serving  as  our  clinical  trial  investigators,  the
hospitals serving as our clinical trial sites and the hospital staff supporting the conduct of our clinical trials;
limitations on travel and quarantine requirements that interrupt key clinical trial activities, such as clinical trial site initiations, our ability and the
ability of our clinical research organizations (“CROs”) to access and monitor clinical trial sites, and new clinical trial site policies resulting from
the  COVID-19  pandemic  that  determine  essential  and  non-essential  functions  and  staff,  which  may  impact  the  ability  of  site  staff  to  conduct
assessments or result in delays to the conduct of the assessments as part of our clinical trial protocols, or impact the ability to enter assessment
results into clinical trial databases in a timely manner, or limit the ability of a subject to participate in a clinical trial or delay access to product
candidate dosing or assessments;

37

•

•

•

•

•

•

interruption of key business activities due to illness and/or quarantine of key individuals and delays associated with recruiting, hiring and training
new temporary or permanent replacements for such key individuals, both internally and at our third party service providers;
delays in research and clinical trial sites receiving the supplies and materials needed to conduct preclinical studies and clinical trials, due to work
stoppages, travel and shipping interruptions or restrictions or other reasons;
potential clinical trial subjects may be unable or unwilling to participate further (or may have to limit participation) in our clinical trials due to
risks related to the COVID-19 pandemic;
difficulties  in  raising  additional  capital  needed  to  pursue  the  development  of  our  programs  due  to  the  slowing  of  our  economy  and  near  term
and/or long term negative effects of the pandemic on the financial, banking and capital markets;
changes in local regulations as part of a response to the COVID-19 outbreak that may require us to change the ways in which research, including
clinical development, is conducted, which may result in unexpected costs; and
delays  in  necessary  interactions  with  regulators  and  other  important  agencies  and  contractors  due  to  limitations  in  employee  resources,  travel
restrictions or forced furlough of government employees.

If a subject participating in one of our clinical trials contracts COVID-19, this could negatively impact the data readouts from these trials; for example, the
subject  may  be  unable  to  participate  further  (or  may  have  to  limit  participation)  in  our  clinical  trial,  the  subject  may  show  a  different  clinical  trial
assessment than if the subject had not contracted the COVID-19, or the subject could experience an AE that could be attributed to our product candidate.

The global outbreak of COVID-19 continues to evolve, including with the emergence of new COVID-19 variants in 2021. The extent to which the COVID-
19 pandemic may further impact our business will depend on future developments, which are highly uncertain and cannot be predicted with confidence,
such  as  the  duration  of  the  pandemic,  travel  restrictions  and  social  distancing  in  the  United  States  and  other  countries,  business  closures  or  business
disruptions and the effectiveness of actions taken in the United States and other countries to contain and treat the virus.

We do not generate revenues from product sales and may never be profitable.

Our ability to generate revenue and achieve profitability depends on our ability, alone or with strategic partners, to successfully complete the development
of, and obtain the regulatory approvals necessary for, the manufacture and commercialization of our product candidates. We do not anticipate generating
significant revenues from product sales for the foreseeable future, if ever. Our ability to generate future revenues from product sales depends heavily on our
success in:

•
•
•
•

•

completing research and pre-clinical and clinical development of our product candidates;
seeking and obtaining regulatory approvals for product candidates for which we complete clinical trials;
developing a sustainable, scalable, reproducible, and transferable manufacturing process for our product candidates;
establishing and maintaining supply and manufacturing relationships with third parties that can provide adequate (in amount and quality) products
and services to support clinical development and the market demand for our product candidates for which we obtain regulatory approval;
launching and commercializing product candidates for which we obtain regulatory approval, either by collaborating with partners or, if launched
independently, by establishing a sales force, marketing, sales operations and distribution infrastructure;
obtaining market acceptance of our product candidates for which we obtain regulatory approval as viable treatment options;
addressing any competing technological and market developments;
implementing additional internal systems and infrastructure, as needed;
identifying and validating new product candidates;
negotiating favorable terms in any collaboration, licensing or other arrangements into which we may enter;

•
•
•
•
•
• maintaining, protecting and expanding our portfolio of intellectual property rights, including patents, trade secrets and know-how; and
•

attracting, hiring and retaining qualified personnel.

Even if one or more of the product candidates that we develop is approved for commercial sale, we anticipate incurring significant costs associated with
commercializing  any  approved  product  candidate.  Our  expenses  could  increase  beyond  expectations  if  we  are  required  by  the  FDA  or  other  regulatory
authorities outside the United States to perform clinical trials or

38

other studies in addition to those that we currently anticipate. Even if we are able to generate revenues from the sale of any approved product candidates,
we may not become profitable and may need to obtain additional funding to continue operations.

Risks Related to Development, Clinical Testing, Regulatory Approval, Marketing, and Coverage and Reimbursement of our Product Candidates

Our product candidates are in early stages of development and must go through clinical trials, which are very expensive, time-consuming and difficult
to design and implement. The outcomes of clinical trials are uncertain, and delays in the completion of or the termination of any clinical trial of our
product candidates could harm our business, financial condition and prospects.

Our research and development programs are at an early stage of development. We must demonstrate our product candidates’ safety and efficacy in humans
through extensive clinical testing, which is expensive and time-consuming and requires specialized knowledge and expertise.

Clinical trials are also expensive and difficult to design and implement, in part because they are subject to rigorous regulatory requirements. The clinical
trial process is also time-consuming, and the outcome is not certain. We estimate that clinical trials of our product candidates will take multiple years to
complete.  Failure  can  occur  at  any  stage  of  a  clinical  trial,  and  we  could  encounter  problems  that  cause  us  to  abandon  or  repeat  clinical  trials.  The
commencement and completion of clinical trials may be delayed or precluded by a number of factors, including:

•

•
•
•

delay or failure in reaching agreement with the FDA or other regulatory authority outside the United States on the design of a given trial, or in
obtaining authorization to commence a trial;
delay or failure in reaching agreement on acceptable terms with prospective CROs and clinical trial sites;
delay or failure in obtaining approval of an IRB or ethics committees before a clinical trial can be initiated at a given site;
any  shelter-in-place  orders  from  local,  state  or  federal  governments  or  clinical  trial  site  policies  resulting  from  the  COVID-19  pandemic  that
determine essential and non-essential functions and staff, which may impact the ability of the staff to conduct assessments or result in delays to the
conduct of the assessments as part of our clinical trial protocols, or impact the ability to enter assessment results into clinical trial databases in a
timely manner;

• withdrawal  of  clinical  trial  sites  from  our  clinical  trials,  including  as  a  result  of  changing  standards  of  care  or  the  ineligibility  of  a  site  to

participate;
delay or failure in recruiting and enrolling subjects in our clinical trials;
delay or failure in having subjects complete a clinical trial or return for post-treatment follow up;
clinical sites or investigators deviating from trial protocol, failing to conduct the trial in accordance with applicable regulatory requirements, or
dropping out of a trial;
inability to identify and maintain a sufficient number of trial sites;
failure of CROs to meet their contractual obligations or deadlines;
the need to modify a trial protocol;
unforeseen safety issues;
emergence of dosing issues;
lack of effectiveness data during clinical trials;
changes in the standard of care of the indication being studied;
reliance  on  third-party  suppliers  for  the  clinical  trial  supply  of  product  candidates  and  failure  by  our  third-party  suppliers  to  comply  with
regulatory requirements or meet their contractual obligations to us in a timely manner, or at all;
inability to monitor subjects adequately during or after treatment;
limitations  on  our  or  our  CROs’  ability  to  access  and  verify  clinical  trial  data  captured  at  clinical  trial  sites  through  monitoring  and  source
document verification;
lack of sufficient funding to finance the clinical trials; and
changes in governmental regulations or administrative action.

•
•
•

•
•
•
•
•
•
•
•

•
•

•
•

We, the FDA, other regulatory authorities outside the United States, or an IRB may suspend a clinical trial at any time for various reasons, including if it
appears that the clinical trial is exposing participants to unacceptable health risks or if the FDA

39

or one or more other regulatory authorities outside the United States find deficiencies in our IND or similar application outside the United States or the
conduct of the trial. If we experience delays in the completion of, or the termination of, any clinical trial of any of our product candidates, the commercial
prospects of such product candidate will be harmed, and our ability to generate product revenues from such product candidate will be delayed or rendered
impossible. In addition, any delays in completing our clinical trials will increase our costs, slow down our product candidate development and approval
process, and jeopardize our ability to commence product sales and generate revenues.

Even  if  our  clinical  trials  are  successfully  completed  as  planned,  the  results  may  not  support  approval  of  our  product  candidates  under  the  laws  and
regulations  of  the  FDA  or  other  regulatory  authorities  outside  the  United  States.  The  clinical  trial  process  may  fail  to  demonstrate  that  our  product
candidates are both safe and effective for their intended uses. Pre-clinical and clinical data and analyses are often able to be interpreted in different ways.
Even  if  we  view  our  results  favorably,  if  a  regulatory  authority  has  a  different  view,  we  may  still  fail  to  obtain  regulatory  approval  of  our  product
candidates.

Any of these occurrences may harm our business, financial condition, results of operations, cash flows and prospects significantly.

Pre-clinical  studies  and  preliminary  and  interim  data  from  clinical  trials  of  our  product  candidates  are  not  necessarily  predictive  of  the  results  or
success of ongoing or later clinical trials of our product candidates. If we cannot replicate the results from our pre-clinical studies and initial clinical
trials of our product candidates in later clinical trials, we may be unable to successfully develop, obtain regulatory approval for and commercialize our
product candidates.

Pre-clinical studies and any positive preliminary and interim data from our clinical trials of our product candidates may not necessarily be predictive of the
results  of  ongoing  or  later  clinical  trials.  A  number  of  companies  in  the  pharmaceutical  and  biotechnology  industries,  including  us  and  many  other
companies with greater resources and experience than we, have suffered significant setbacks in clinical trials, even after seeing promising results in prior
pre-clinical  studies  and  clinical  trials.  Even  if  we  are  able  to  complete  our  planned  clinical  trials  of  our  product  candidates  according  to  our  current
development  timeline,  initial  positive  results  from  pre-clinical  studies  and  clinical  trials  of  our  product  candidates  may  not  be  replicated  in  subsequent
clinical  trials.  The  design  of  our  later  stage  clinical  trials  could  differ  in  significant  ways  (e.g.,  inclusion  and  exclusion  criteria,  endpoints,  statistical
analysis plan) from our earlier stage clinical trials, which could cause the outcomes of the later stage trials to differ from those of our earlier stage clinical
trials. If we fail to produce positive results in our planned clinical trials of any of our product candidates, the development timeline and regulatory approval
and  commercialization  prospects  for  our  product  candidates,  and,  correspondingly,  our  business  and  financial  prospects,  would  be  materially  adversely
affected.

Because  we  have  limited  resources,  we  may  decide  to  pursue  a  particular  product  candidate  and  fail  to  advance  product  candidates  that  later
demonstrate a greater chance of clinical and commercial success.

We are an early-stage company with limited resources and revenues. The product candidates we currently have under development will require significant
development, pre-clinical and clinical testing and investment of significant funds before their commercialization. Because of this, we must make strategic
decisions regarding resource allocations and which product candidates to pursue. There can be no assurance that we will be able to develop all potentially
promising product candidates that we may identify. Based on preliminary results, we may choose to advance a particular product candidate that later fails to
be successful, and simultaneously forgo or defer further investment in other product candidates that later are discovered to demonstrate greater promise in
terms of clinical and commercial success. If we make resource allocation decisions that later are shown to be inaccurate, our business and prospects could
be harmed.

Several of our current pre-clinical studies and clinical trials are being conducted outside the United States, and the FDA may not accept data from
trials conducted in locations outside the United States.

Several of our current pre-clinical studies and clinical trials are being conducted outside the United States and we may conduct further pre-clinical studies
and  clinical  trials  outside  the  United  States  in  the  future.  We  are  currently  conducting  clinical  trials  in  Moldova,  Thailand,  Taiwan,  South  Korea,  Hong
Kong, Australia and New Zealand, among other countries. To the extent we do not conduct these clinical trials under an IND, the FDA may not accept data
from  such  trials.  Although  the  FDA  may  accept  data  from  clinical  trials  conducted  outside  the  United  States  that  are  not  conducted  under  an  IND,  the
FDA’s acceptance of these data is subject to certain conditions. For example, the clinical trial must be well designed and conducted and performed by

40

qualified investigators in accordance with ethical principles. The trial population must also adequately represent the United States population, and the data
must be applicable to the United States population and United States medical practice in ways that the FDA deems clinically meaningful. In general, the
patient population for any clinical trials conducted outside of the United States must be representative of the population for whom we intend to label the
product in the United States. In addition, while these clinical trials are subject to the applicable local laws, FDA acceptance of the data will be dependent
upon its ability to verify the data and its determination that the trials complied with all applicable United States laws and regulations. We cannot assure you
that the FDA will accept data from trials conducted outside of the United States that are not conducted under an IND. If the FDA does not accept the data
from such clinical trials, we likely would need to conduct additional trials, which would be costly and time-consuming and could delay or permanently halt
our development of our product candidates.

We  cannot  guarantee  how  long  it  will  take  regulatory  agencies  to  review  our  applications  for  product  candidates,  and  we  may  fail  to  obtain  the
necessary regulatory approvals to market our product candidates.

Before we can commercialize our product candidates in the United States, we must obtain approval from the FDA. We must similarly obtain approvals
from comparable regulatory authorities to commercialize our product candidates in jurisdictions outside the United States.

To obtain marketing approval, United States laws require:

•
•
•
•

controlled research and human clinical testing that comply with GLP and GCP, as applicable;
establishment of the safety and efficacy of the product for each use sought;
government review and approval of a submission containing, among other things, manufacturing, pre-clinical and clinical data; and
compliance with GMP regulations.

The process of reviewing and approving a drug is time-consuming, unpredictable, and dependent on a variety of factors outside of our control. The FDA
and corresponding regulatory authorities in jurisdictions outside the United States have a significant amount of discretion in deciding whether or not to
approve  a  marketing  application.  Our  product  candidates  could  fail  to  receive  regulatory  approval  from  the  FDA  or  comparable  regulatory  authorities
outside the United States for several reasons, including:

•
•
•
•
•
•

disagreement with the design or implementation of our clinical trials;
failure to demonstrate that our product candidate is safe and effective for the proposed indication;
failure of clinical trial results to meet the level of statistical significance required for approval;
failure to demonstrate that the product candidate’s benefits outweigh its risks;
disagreement with our interpretation of pre-clinical or clinical data; and
inadequacies in the manufacturing facilities or processes of third-party manufacturers.

The FDA or comparable regulatory authorities outside the United States may require us to conduct additional pre-clinical and clinical testing, which may
delay or prevent approval of a product candidate and our commercialization plans, or cause us to abandon the development program. Further, any approval
we receive may be for fewer or more limited indications than we request, may not include labeling claims necessary for successful commercialization of
the  product  candidate,  or  may  be  contingent  upon  our  conducting  costly  post-marketing  studies.  Any  of  these  scenarios  could  materially  harm  the
commercial prospects of a product candidate, and our operations will be adversely effected.

If  a  particular  product  candidate  causes  undesirable  side  effects,  then  we  may  be  unable  to  receive  regulatory  approval  of  or  commercialize  such
product candidate.

We may experience numerous unforeseen events during, or as a result of, the testing process that could delay or prevent commercialization of any of our
product  candidates,  including  the  occurrence  of  undesirable  side  effects.  Such  side  effects  could  lead  to  clinical  trial  challenges,  such  as  difficulties  in
subject recruitment, retention, and adherence, potential product liability claims, and possible termination by health authorities. These types of clinical trial
challenges could in turn, delay or prevent regulatory approval of our product candidate. Side effects may also lead regulatory authorities to require stronger
product warnings on the product label, costly post-marketing studies, and/or a Risk Evaluation and Mitigation Strategy (“REMS”), among other possible
requirements. If the product candidate has already been approved, such approval may be

41

withdrawn. Any delay in, denial, or withdrawal of marketing approval for one of our product candidates will adversely affect our business, including our
results of operations and financial position. Even if one or more of our product candidates receives marketing approval, undesirable side effects may limit
such product’s commercial viability. Patients may not wish to use our product, physicians may not prescribe our product, and our reputation may suffer.
Any of these events may significantly harm our business and financial prospects.

We may find it difficult to enroll patients in our clinical trials, which could delay or prevent clinical trials of our product candidates.

Identifying  and  qualifying  patients  to  participate  in  clinical  trials  of  our  product  candidates  is  critical  to  our  success.  The  timing  of  our  clinical  trials
depends in part on the speed at which we can recruit patients to participate in testing our product candidates.

We may not be able to identify, recruit and enroll a sufficient number of patients, or those with required or desired characteristics to achieve diversity in a
clinical trial, or complete our clinical trials in a timely manner. Subject enrollment is affected by a variety factors including, among others:

severity of the disease under investigation;
•
design of the trial protocol;
•
prevalence of the disease/size of the patient population;
•
eligibility criteria for the clinical trial in question;
•
•
perceived risks and benefits of the product candidate under study;
• willingness or availability of patients to participate in the clinical trials;
proximity and availability of clinical trial sites for prospective patients;
•
ability to recruit clinical trial investigators with the appropriate competencies and experience;
•
availability of competing therapies and clinical trials;
•
efforts to facilitate timely enrollment in clinical trials;
•
ability to obtain and maintain subject consents;
•
patient referral practices of physicians;
•
risk that patients enrolled in clinical trials will drop out of the trials before completion; and
•
ability to monitor patients adequately during and after treatment.
•

If patients are unwilling to participate in our clinical trials, the timeline for recruiting patients, conducting clinical trials and obtaining regulatory approval
of potential products may be delayed. These delays could result in increased costs, delays in advancing or testing our product candidates or termination of
the clinical trials altogether.

Several of our and our collaboration partner’s clinical trials have been impacted and could be delayed or suspended as a result of the military action by
Russia in Ukraine.

A portion of our clinical trials evaluating AB-836 and AB-729 are being conducted in Ukraine. In addition, our collaboration partner, Antios, is conducting
a Phase 2a proof-of-concept clinical trial that includes a cohort evaluating a triple combination of AB-729, ATI-2173 and Viread primarily in Ukraine. We
had also planned to conduct a portion of our planned Phase 2a clinical trial to evaluate a triple combination of AB-729 with Vaccitech’s VTP-300 and a NA
in Ukraine.

In February 2022, Russia commenced a military invasion of Ukraine. Russia’s invasion and the ensuing response by Ukraine has disrupted our and our
collaboration partner’s current clinical trials in such jurisdictions and could increase our costs and disrupt future planned clinical development activities.
For example, we believe we and our collaboration partner may not be able to complete any additional dosing and/or follow-up visits of patients in Ukraine
who are participating in these clinical trials. We may also be unable to ship additional clinical drug and other supplies necessary to complete the clinical
trials in Ukraine. Although the route, length and impact of Russia’s military action is highly unpredictable, clinical trial sites in Ukraine, could also suspend
or terminate trials, and patients could be forced to evacuate or voluntarily choose to relocate far from clinical trial sites, making them unavailable for initial
or  further  participation  in  these  clinical  trials.  Alternative  sites  to  fully  and  timely  compensate  for  our  clinical  trial  activities  in  Ukraine  may  not  be
available and we may need to find other countries to conduct these clinical trials. If these clinical trials are further interrupted, our clinical development
plans for these product

42

candidates  could  be  significantly  delayed,  which  would  increase  our  costs,  slow  down  our  product  candidate  development  and  approval  process  and
jeopardize our ability to commence product sales and generate revenues.

Even if our product candidates obtain regulatory approval, they will remain subject to ongoing regulatory requirements and oversight.

Approved drug products are subject to ongoing regulatory requirements and oversight, including requirements related to manufacturing, quality control,
further development, labeling, packaging, storage, distribution, safety surveillance, import, export, advertising, promotion, recordkeeping and reporting. In
addition, we will be subject to continued compliance with GMP and GCP requirements for any clinical trials that we conduct post-approval. If we or any of
the third parties on which we rely fail to meet those requirements, the FDA or comparable regulatory authorities outside the United States could initiate
enforcement actions. Other potential consequences include the issuance of fines, warning letters, untitled letters or holds on clinical trials, product seizure
or detention or refusal to permit the import or export of our product candidates, permanent injunctions and consent decrees, or the imposition of civil or
criminal  penalties,  any  of  which  could  significantly  impair  our  ability  to  successfully  commercialize  a  given  product.  If  the  FDA  or  a  comparable
regulatory  authority  outside  the  United  States  becomes  aware  of  new  safety  information,  it  can  impose  additional  restrictions  on  how  the  product  is
marketed or may seek to withdraw marketing approval altogether.

Further, the U.S. and state governments have shown significant interest in establishing cost containment measures to limit the growth of government-paid
health care costs, including price controls, restrictions on reimbursement, and requirements for substitution of generic products for branded prescription
drugs. For example, in March 2010, the Patient Protection and Affordable Care Act, as amended (the “ACA”), became law in the United States. A primary
goal  of  the  ACA  is  to  reduce  the  cost  of  health  care,  and  it  has  substantially  changed  the  way  health  care  is  financed  by  both  government  and  private
insurers. While we cannot predict with certainty what impact on federal and other reimbursement policies this legislation will have in general or on our
business specifically, the ACA may result in downward pressure on pharmaceutical reimbursement, which could negatively affect market acceptance of,
and the price we may charge for, any products we develop that receives regulatory approval. Legislative changes to and regulatory changes under the ACA
remain  possible,  but  the  nature  and  extent  of  such  potential  additional  changes  are  uncertain  at  this  time.  We  expect  that  the  ACA,  its  implementation,
efforts to modify or invalidate the ACA, or portions thereof, or its implementation, and other healthcare reform measures that may be adopted in the future,
could have a material adverse effect on our industry generally and on our ability to successfully commercialize our product candidates, if approved.

The marketability of any products for which we receive regulatory approval for commercial sale may suffer if the government and third-party payors fail to
provide adequate coverage and reimbursement. In addition, cost containment measures in the United States has been an area or increasing emphasis, and
we expect they will continue to increase the pressure on pharmaceutical pricing. Coverage policies and third-party reimbursement rates may change at any
time. Even if favorable coverage and reimbursement status is attained for one or more products for which we receive regulatory approval, less favorable
coverage policies and reimbursement rates may be adopted in the future.

We face significant competition from other biotechnology and pharmaceutical companies targeting HBV and coronaviruses, including COVID-19.

As a significant unmet medical need exists for HBV, there are several large and small pharmaceutical companies focused on delivering therapeutics for
treatment  of  HBV.  These  companies  include,  but  are  not  limited  to  Johnson  &  Johnson,  Roche,  Vir  Biotechnology,  GlaxoSmithKline,  Gilead  Sciences,
Assembly, Enanta Pharmaceuticals, Aligos Therapeutics, Antios and Vaccitech. Further, it is likely that additional drugs will become available in the future
for the treatment of HBV.

In addition, given the severity of the global COVID-19 pandemic, several companies are developing or commercializing therapeutics for the treatment of
coronaviruses. These companies include, but are not limited to, Pfizer, Merck, Gilead, Vir Biotechnology, Shionogi, PardesBio, Enanta Pharmaceuticals,
Aligos Therapeutics and Cocrystal Pharma.

Many  of  our  existing  or  potential  competitors  have  substantially  greater  financial,  technical  and  human  resources  than  we  do  and  significantly  greater
experience in the discovery and development of product candidates, as well as in obtaining regulatory

43

approvals of those product candidates in the United States and other countries. Many of our current and potential future competitors also have significantly
more experience commercializing drugs that have been approved for marketing.

We anticipate significant competition in the HBV and coronavirus markets, with several early and late phase product candidates announced. We will also
face  competition  for  other  product  candidates  that  we  expect  to  develop  in  the  future.  Competition  may  increase  further  as  a  result  of  advances  in  the
commercial applicability of technologies and greater availability of capital for investment in these industries. Our competitors may succeed in developing,
acquiring or licensing, on an exclusive basis, product candidates that are more effective or less costly than any product candidate that we may develop.

If  we  successfully  develop  product  candidates,  and  obtain  approval  for  them,  we  will  face  competition  based  on  many  different  factors,  including  the
following:

•
•
•
•
•
•
•

safety and effectiveness of our products;
ease with which our products can be administered and the extent to which patients and physicians accept new routes of administration;
timing and scope of regulatory approvals for these products;
availability and cost of manufacturing, marketing and sales capabilities;
price;
reimbursement coverage; and
patent position.

Our  competitors  may  develop  or  commercialize  products  with  significant  advantages  over  any  products  we  develop  based  on  any  of  the  factors  listed
above, or on other factors. Our competitors may therefore be more successful in commercializing their products than we are, which could adversely affect
our competitive position and business. Competitive products may make any products we develop and commercialize obsolete or uncompetitive before we
can recover the expenses of developing and commercializing such products. Such competitors could also recruit our employees, which could negatively
impact our level of expertise and the ability to execute on our business plan.

We are largely dependent on the future commercial success of our HBV and coronavirus product candidates.

Our ability to generate revenues and become profitable will depend in large part on the future commercial success of our HBV and coronavirus product
candidates, if they are approved for marketing. If any product that we commercialize in the future does not gain an adequate level of acceptance among
physicians, patients and third parties, or our estimates of the number of people who have cHBV or are infected with coronaviruses are lower than expected,
we may not generate significant product revenues or become profitable. Market acceptance by physicians, patients and third party payors of the products
we may commercialize will depend on a number of factors, some of which are beyond our control, including:

•
•
•

•
•
•
•
•
•

their efficacy, safety and other potential advantages in relation to alternative treatments;
their relative convenience and ease of administration in relation to alternative treatments;
the  availability  of  adequate  coverage  or  reimbursement  by  third  parties,  such  as  insurance  companies  and  other  healthcare  payors,  and  by
government healthcare programs, including Medicare and Medicaid;
the prevalence and severity of adverse events;
their cost of treatment in relation to alternative treatments, including generic products;
the extent and strength of our third party manufacturer and supplier support;
the extent and strength of marketing and distribution support;
the limitations or warnings contained in a product’s approved labeling; and
distribution  and  use  restrictions  imposed  by  the  FDA  or  other  regulatory  authorities  outside  the  United  States  or  that  are  part  of  a  REMS  or
voluntary risk management plan.

For example, even if our products have been approved by the FDA, physicians and patients may not immediately be receptive to them and may be slow to
adopt  them.  If  our  products  do  not  achieve  an  adequate  level  of  acceptance  among  physicians,  patients  and  third  party  payors,  we  may  not  generate
meaningful revenues and we may not become profitable.

44

We may incur substantial liabilities and may be required to limit commercialization of our products in response to product liability lawsuits.

The testing and marketing of medical products entail an inherent risk of product liability. Product liability claims may be brought against us by patients,
healthcare providers or others using, administering or selling our products. Large judgments have been awarded in class action lawsuits based on drugs that
had unanticipated side effects, which is an example of just one possible product liability claim that may be brought against us. If we cannot successfully
defend  ourselves  against  product  liability  claims,  we  may  incur  substantial  liabilities  or  be  required  to  limit  commercialization  of  our  products.  Our
inability to obtain sufficient product liability insurance at an acceptable cost to protect against potential product liability claims could prevent or inhibit the
commercialization of products we develop, alone or with partners. Although we currently have product liability insurance coverage for our clinical trials
for expenses or losses, our insurance coverage is limited to $10 million per occurrence, and $10 million in the aggregate, and may not reimburse us or may
not be sufficient to reimburse us for any or all expenses or losses we may suffer. Moreover, insurance coverage is becoming increasingly expensive and in
the future, we may not be able to maintain insurance coverage at a reasonable cost or in sufficient amounts to protect us against losses due to liability. We
intend  to  expand  our  insurance  coverage  to  include  the  sale  of  commercial  products  if  we  obtain  marketing  approval  for  our  product  candidates  in
development, but we may be unable to obtain commercially reasonable product liability insurance for any products approved for marketing. Further, even if
our  agreements  with  any  current  or  future  partners  entitle  us  to  indemnification  against  losses,  such  indemnification  may  not  be  available  or  adequate
should any claims arise. A successful product liability claim or series of claims brought against us could cause our share price to fall and, if judgments
exceed our insurance coverage, could decrease our cash and adversely affect our business.

Coverage  and  adequate  reimbursement  may  not  be  available  for  our  product  candidates,  which  could  make  it  difficult  for  us  to  sell  our  products
profitably.

Market  acceptance  and  sales  of  any  products  that  we  develop  will  depend  in  part  on  the  extent  to  which  reimbursement  for  these  products  and  related
treatments will be available from third party payors, including government health administration authorities and private health insurers. Third party payors
decide  which  drugs  they  will  pay  for  and  establish  reimbursement  levels.  Third  party  payors  often  rely  upon  Medicare  coverage  policy  and  payment
limitations in setting their own reimbursement policies. However, decisions regarding the extent of coverage and amount of reimbursement to be provided
for  each  of  our  products  will  be  made  on  a  plan  by  plan  basis.  One  payor’s  determination  to  provide  coverage  for  a  product  does  not  assure  that  other
payors will also provide coverage, and adequate reimbursement, for the product. Additionally, a third party payor’s decision to provide coverage for a drug
does  not  imply  that  an  adequate  reimbursement  rate  will  be  approved.  Each  plan  determines  whether  or  not  it  will  provide  coverage  for  a  drug,  what
amount it will pay the manufacturer for the drug, and on what tier of its formulary the drug will be placed. The position of a drug on a formulary generally
determines the copayment that a patient will need to make to obtain the drug and can strongly influence the adoption of a drug by patients and physicians.
Patients  who  are  prescribed  treatments  for  their  conditions  and  providers  performing  the  prescribed  services  generally  rely  on  third  party  payors  to
reimburse all or part of the associated healthcare costs. Patients are unlikely to use our products unless coverage is provided and reimbursement is adequate
to cover a significant portion of the cost of our products.

A primary trend in the United States healthcare industry and elsewhere is cost containment. Third party payors have attempted to control costs by limiting
coverage  and  the  amount  of  reimbursement  for  particular  medications.  We  cannot  be  sure  that  coverage  and  reimbursement  will  be  available  for  any
product that we commercialize and, if reimbursement is available, what the level of reimbursement will be. Inadequate coverage and reimbursement may
impact the demand for, or the price of, any product for which we obtain marketing approval. If coverage and adequate reimbursement is not available, or is
available only to limited levels, we may not be able to successfully commercialize any product candidates that we develop.

Additionally,  there  have  been  a  number  of  legislative  and  regulatory  proposals  to  change  the  healthcare  system  in  the  United  States  and  in  some
jurisdictions  outside  the  United  States  that  could  affect  our  ability  to  sell  any  future  products  profitably.  These  legislative  and  regulatory  changes  may
negatively impact the reimbursement for any future products, following approval.

45

We are subject to United States and Canadian healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual
damages, reputational harm, fines, disgorgement, exclusion from participation in government healthcare programs, curtailment or restricting of our
operations and diminished profits and future earnings.

Healthcare providers, physicians and others will play a primary role in the recommendation and prescription of any products for which we obtain marketing
approval.  Our  future  arrangements  with  healthcare  providers,  patients  and  third  party  payors  will  expose  us  to  broadly  applicable  United  States  and
Canadian fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements and collaborative partners
through  which  we  market,  sell  and  distribute  any  products  for  which  we  obtain  marketing  approval.  Restrictions  under  applicable  federal  and  state
healthcare laws and regulations are described in further detail in the section entitled Government Regulation – Post-Approval Regulation and include the
following:

•

•

the federal Anti-Kickback Law prohibits persons from, among other things, knowingly and willfully soliciting, offering, receiving or providing
remuneration,  directly  or  indirectly,  in  cash  or  in  kind,  to  induce  or  reward,  or  in  return  for,  the  referral  of  an  individual  for  the  furnishing  or
arranging for the furnishing, or the purchase, lease or order, or arranging for or recommending purchase, lease or order, any good or service for
which payment may be made under a federal healthcare program such as Medicare and Medicaid;

the  federal  civil  False  Claims  Act  imposes  civil  penalties,  sometimes  pursued  through  whistleblower  or  qui  tam  actions,  against  individuals  or
entities  for,  among  other  things,  knowingly  presenting,  or  causing  to  be  presented  claims  for  payment  of  government  funds  that  are  false  or
fraudulent  or  making  a  false  statement  material  to  an  obligation  to  pay  money  to  the  government  or  knowingly  concealing  or  knowingly  and
improperly avoiding, decreasing, or concealing an obligation to pay money to the federal government;

• HIPAA imposes criminal liability for knowingly and willfully executing a scheme to defraud any healthcare benefit program, knowingly and

willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement or representation, or
making or using any false writing or document knowing the same to contain any materially false fictitious or fraudulent statement or entry, in
connection with the delivery of or payment for healthcare benefits, items or services;

• HIPAA  and  its  implementing  regulations  also  impose  obligations  on  certain  covered  entity  health  care  providers,  health  plans  and  health  care
clearinghouses as well as their business associates that perform certain services involving the use or disclosure of individually identifiable health
information, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable
health information. We may obtain health information from third parties (including research institutions from which we obtain clinical trial data)
that are subject to privacy and security requirements under HIPAA. Although we are not directly subject to HIPAA - other than with respect to
providing certain employee benefits - we could potentially be subject to criminal penalties if we, our affiliates, or our agents knowingly obtain,
use, or disclose individually identifiable health information maintained by a HIPAA-covered entity in a manner that is not authorized or permitted
by HIPAA;

•

•

•

numerous federal and state laws and regulations that address privacy and data security, including state data breach notifications laws, state health
information and/or genetic privacy laws, and federal and state consumer protection laws (e.g., Section 5 of the Federal Trade Commission Act, or
FTC Act, and the CCPA), govern the collection, use, disclosure and protection of health-related and other personal information, many of which
differ from each other in significant ways, thus complicating the compliance efforts. Compliance with these laws is difficult, constantly evolving,
and time-consuming, and companies that do not comply with these laws may face government enforcement actions, civil and/or criminal penalties,
or private action, as well as adverse publicity that could negatively affect our operating results and business;

activities  outside  of  the  U.S.  implicate  local  and  national  data  protection  standards,  impose  additional  compliance  requirements  and  generate
additional  risks  of  enforcement  for  non-compliance.  The  European  Union’s  GDPR  and  other  data  protection,  privacy  and  similar  national,
state/provincial and local laws may restrict the access, use and disclosure of patient health information abroad. Compliance efforts will likely be an
increasing and substantial cost in the future;

the federal Physician Payment Sunshine Act, being implemented as the Open Payments Program, which requires manufacturers of drugs, devices,
biologics, and medical supplies for which payment is available under Medicare,

46

Medicaid or the Children’s Health Insurance Program (with certain exceptions) to report annually to CMS information related to direct or indirect
payments  and  other  transfers  of  value  to  physicians  and  teaching  hospitals  (and  certain  other  practitioners  beginning  in  2022),  as  well  as
ownership and investment interests held in the company by physicians and their immediate family members;

•

•

price reporting requirements under the Medicaid Drug Rebate Program and the 340B Program and with respect to average sales price reporting
under the Medicare Part B program, and rebate or discount liability under the Medicaid Drug Rebate Program, the 340B Program, and Medicare
Part  D,  with  respect  to  which  we  could  be  subject  to  civil  monetary  penalties  for  a  failure  to  comply  with  our  reporting  or  rebate  or  discount
obligations, or termination from the Medicaid Drug Rebate Program or 340B program, which, in turn, could jeopardize the availability of federal
funds for our products under Medicaid and Medicare Part B; and

analogous state laws and laws and regulations outside the United States, such as state anti-kickback and false claims laws, which may apply to
sales or marketing arrangements and claims involving healthcare items or services reimbursed by non-governmental third-party payors, including
private insurers; state laws and laws outside the United States that require pharmaceutical companies to comply with the pharmaceutical industry’s
voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government or otherwise restrict payments that
may be made to certain healthcare providers; state laws and laws outside the United States that require drug manufacturers to report information
related to clinical trials, or information related to payments and other transfers of value to physicians and other healthcare providers or marketing
expenditures; state laws that restrict the ability of manufacturers to offer co-pay support to patients for certain prescription drugs; and state laws
and local ordinances that require identification or licensing of sales representatives.

Efforts to ensure that our collaborations with third parties, and our business generally, will comply with applicable United States and Canadian healthcare
laws and regulations will involve substantial costs. It is possible that governmental authorities will conclude that our business practices may not comply
with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are
found to be in violation of any of these laws or any other governmental laws and regulations that may apply to us, we may be subject to significant civil,
criminal  and  administrative  penalties,  damages,  fines,  imprisonment,  exclusion  of  products  from  government  funded  healthcare  programs,  contractual
damages,  reputational  harm,  disgorgement,  curtailment  or  restricting  of  our  operations,  any  of  which  could  substantially  disrupt  our  operations  and
diminish our profits and future earnings. If any of the physicians or other providers or entities with whom we expect to do business is found not to be in
compliance  with  applicable  laws,  they  may  be  subject  to  criminal,  civil  or  administrative  sanctions,  including  exclusions  from  government  funded
healthcare programs. The risk of our being found in violation of these laws is increased by the fact that many of them have not been fully interpreted by the
regulatory authorities or the courts, and their provisions are open to a variety of interpretations.

Failure to comply with the United States Foreign Corrupt Practices Act (“FCPA”), and potentially other global anti-corruption and anti-bribery laws
such as the Canadian Corruption of Foreign Public Officials Act, could subject us to penalties and other adverse consequences.

We are subject to the FCPA, and potentially other applicable domestic or foreign anti-corruption or anti-bribery laws, which generally prohibit companies
from engaging in bribery or other prohibited payments to foreign officials for the purpose of obtaining or retaining business and requires companies to
maintain accurate books and records and internal controls, including at foreign-controlled subsidiaries.

Compliance  with  these  anti-corruption  laws  and  anti-bribery  laws  may  be  expensive  and  difficult,  particularly  in  countries  in  which  corruption  is  a
recognized problem. In addition, these laws present particular challenges in the pharmaceutical industry, because, in many countries, hospitals are operated
by the government, and physicians and other hospital employees are considered to be foreign officials. Certain payments to hospitals in connection with
clinical trials and other work have been deemed to be improper payments to governmental officials and have led to FCPA enforcement actions.

We can make no assurance that our employees or other agents will not engage in prohibited conduct under our policies and procedures and anti-corruption
laws and anti-bribery laws such as FCPA for which we might be held responsible. If our employees or other agents are found to have engaged in such
practices, we could suffer severe penalties and other consequences that may have a material adverse effect on our business, financial condition and results
of operations.

47

Risks Related to Our Dependence on Third Parties

We depend on our license agreement with Alnylam for the commercialization of ONPATTRO™ (Patisiran).

In  2012,  we  entered  into  a  license  agreement  with  Alnylam  that  entitles  Alnylam  to  develop  and  commercialize  products  with  our  LNP  technology.
Alnylam received FDA approval in August 2018 and launched ONPATTRO immediately upon approval. We are entitled to low to mid-single-digit royalty
payments escalating based on sales performance and received our first royalty payment in the fourth quarter of 2018. In July 2019, we sold this royalty
entitlement to OMERS, the defined benefit pension plan for municipal employees based in the Province of Ontario, Canada, effect as of January 1, 2019,
for $20 million in gross proceeds before advisory fees. OMERS will retain this royalty entitlement until it has received $30 million in royalties, at which
point 100% of this royalty entitlement on future global net sales of ONPATTRO will revert to us. The possibility and timing of any possible reversion of the
royalty entitlement is affected by many factors including:

• Alnylam’s and its distributors’ and sublicensees’ ability to effectively market and sell ONPATTRO in each country where sold;
•
•
•
•
•

the manner of sale, whether directly by Alnylam or by sublicensees or distributors, and the terms of sublicensing and distribution agreements;
the amount and timing of sales of Alnylam in each country;
regulatory approvals, appropriate labeling, and desirable pricing, insurance coverage and reimbursement;
competition; and
commencement of marketing in additional countries.

If Alnylam is not successful in commercializing ONPATTRO, the royalty entitlement may never revert back to Arbutus.

We expect to depend in part on our licensing agreements for a significant portion of our revenues for the foreseeable future and to develop, conduct
clinical trials with, obtain regulatory approvals for, and manufacture, market and sell some of our product candidates. If these licensing agreements
are unsuccessful, or anticipated milestone or royalty payments are not received, our business could be materially adversely affected.

We expect that we will depend in part on our licensing agreements with Alnylam, Qilu and Gritstone to provide revenue to partially fund our operations,
especially in the near term. Furthermore, our strategy is to enter into various additional arrangements with corporate and academic collaborators, licensors,
licensees and others for the research, development, clinical testing, manufacturing, marketing and commercialization of our product candidates or other
products based upon our technology. We may be unable to continue to establish such licensing agreements, and any licensing agreements we do establish
may be unsuccessful, or we may not receive milestone payments or royalties as anticipated.

Should any licensing partner fail to develop or ultimately successfully commercialize any of the product candidates or technology to which it has obtained
rights,  our  business  may  be  adversely  affected.  In  addition,  once  initiated,  there  can  be  no  assurance  that  any  of  these  licensing  agreements  will  be
continued or result in successfully commercialized products. Failure of a licensing partner to continue funding any particular program could delay or halt
the development or commercialization of any products arising out of such program. In addition, there can be no assurance that the licensing partners will
not pursue alternative technologies or develop alternative products either on their own or in collaboration with others, including our competitors.

We are dependent on our collaboration and licensing partners and, therefore, are subject to the efforts of these parties and our ability to successfully
collaborate with them.

We have entered into a number of clinical collaboration agreements, including with Assembly, Vaccitech and Antios. We are responsible for managing the
clinical  trial  under  the  collaboration  agreement  with  Vaccitech,  while  Assembly  and  Antios  are  responsible  for  managing  the  clinical  trials  under  the
collaborations we have with each of them. The success of our collaborations depend on not only our efforts, but also on the efforts of our counterparties.
Because  we  are  not  responsible  for  managing  the  clinical  trials  with  Assembly  and  Antios,  the  success  of  those  collaborations  also  depend  on  whether
Assembly or Antios is successful in performance of its activities, to the extent it is responsible for performance of collaboration activities.

48

Additionally,  these  counterparties  could  change  their  strategic  focus  or  pursue  alternative  technologies,  which  could  materially  and  adversely  affect  our
business. Similarly, we are dependent on X-Chem and Proteros pursuant to our discovery and research agreement to work toward the development of pan-
coronavirus agents to treat COVID-19 and potential future coronavirus outbreaks.

In addition, if we have a dispute or enter into litigation with any of these parties in the future, it could delay development programs, distract management
from other business activities, and generate substantial expense.

We will depend on Qilu for the development and commercialization of AB-729 in China, Hong Kong, Macau and Taiwan.

In December 2021, we entered into the License Agreement with Qilu, pursuant to which we granted Qilu an exclusive (except as to certain retained rights),
sublicensable, royalty-bearing license, under certain intellectual property owned by us, to develop, manufacture and commercialize AB-729 in the Territory.
The timing and amount of any milestone and royalty payments we may receive under the License Agreement will depend, in part, on the efforts of Qilu.
We  will  depend  on  Qilu  to  comply  with  all  applicable  laws  relative  to  the  development  and  commercialization  of  AB-729  in  the  Territory.  Under  the
License Agreement, Qilu is required to use commercially reasonable efforts to develop, seek regulatory approval for, and commercialize at least one AB-
729 product candidate in the Territory. Any failure by Qilu to use such commercially reasonable efforts could have a material adverse impact on financial
results  and  operations.  Additionally,  if  Qilu  were  to  violate,  or  was  alleged  to  have  violated,  any  laws  or  regulations  during  the  performance  of  its
obligations  to  us,  we  could  suffer  financial  and  reputational  harm  or  other  negative  outcomes.  Any  termination,  breach  or  expiration  of  the  License
Agreement  could  also  have  a  material  adverse  impact  on  our  business  by  reducing  or  eliminating  the  potential  for  us  to  receive  milestone  and  royalty
payments.  If  that  were  to  occur,  we  may  be  required  to  devote  additional  time,  costs  and  attention  to  pursue  the  manufacture,  development  and
commercialization  of  AB-729  in  the  Territory.  In  certain  situations,  Qilu  has  the  ability  to  terminate  the  License  Agreement  and  retain  all  rights  to
manufacture, develop and commercialize AB-729 in the Territory with no obligation to make any additional milestone or royalty payments to us.

If conflicts arise between our collaboration or licensing partners and us, our collaboration or licensing partners may act in their best interest and not in
our best interest, which could adversely affect our business.

Conflicts  may  arise  with  our  collaboration  or  licensing  partners,  including  Alnylam,  Qilu,  Gritstone,  Assembly,  Antios  and  Vaccitech  if  they  pursue
alternative therapies for the diseases that we have targeted or develop alternative products either on their own or in collaboration with others. Competing
products, either developed by our present collaboration or licensing partners or any future partners or to which our present partners or any future partners
have rights, may result in development delays or the withdrawal of their support for one or more of our product candidates.

Additionally, conflicts may arise if there is a dispute about the progress of, or other activities related to, the clinical development of a product candidate, the
achievement and payment of a milestone amount, the payment of royalties or the ownership of intellectual property that is developed during the course of
the  collaborative  arrangement.  Similarly,  the  parties  to  a  licensing  agreement  may  disagree  as  to  which  party  owns  newly  developed  products.  If  an
agreement is terminated as a result of a dispute and before we have realized the benefits of the collaboration or licensing arrangement, our reputation could
be harmed and we might not obtain revenues that we anticipated receiving.

We  rely  on  third  parties  to  conduct  our  clinical  trials,  and  if  they  fail  to  fulfill  their  obligations,  perform  services  in  a  satisfactory  manner,  and/or
comply with applicable legal or regulatory requirements, our development plans may be adversely affected.

We rely on independent clinical investigators, CROs and other third-party service providers to assist us in managing, monitoring and otherwise carrying out
our  clinical  trials.  We  have  contracted  with,  and  we  plan  to  continue  to  contract  with,  certain  third  parties  to  provide  certain  services,  including  site
selection,  enrollment,  monitoring  and  data  management.  Although  we  depend  heavily  on  these  parties  and  have  contractual  agreements  governing  their
activities, we do not control them and therefore, we cannot be assured that these third parties will adequately perform all of their contractual obligations to
us. If our third-party service providers cannot adequately fulfill their obligations to us on a timely and satisfactory basis or if the quality or accuracy of our
clinical trial data is compromised due to failure to adhere to our protocols or regulatory requirements, or if

49

such third parties otherwise fail to meet deadlines or follow legal or regulatory requirements, our development plans may be delayed or terminated.

If any of our relationships with these third-parties terminate, we may not be able to enter into arrangements with alternative third parties on commercially
reasonable terms or at all. Switching or adding additional third-party service providers involves additional cost and requires management time and focus. In
addition,  there  is  a  natural  transition  period  when  a  new  third-party  service  provider  begins  work.  As  a  result,  delays  may  occur,  which  can  materially
impact our ability to meet our desired development timelines.

We  rely  exclusively  on  third  parties  to  formulate  and  manufacture  our  product  candidates,  which  exposes  us  to  a  number  of  risks  that  may  delay
development, regulatory approval and commercialization of our products or result in higher product costs.

We have limited experience in drug formulation or manufacturing and we lack the resources and expertise to formulate or manufacture our own product
candidates  internally.  Therefore,  we  rely  on,  and  expect  to  continue  to  rely  on,  third-party  expertise  to  support  us  in  this  area.  We  have  entered  into
contracts with third-party manufacturers to manufacture, supply, store and distribute supplies of our product candidates for our clinical trials. If any of our
product  candidates  receive  FDA  approval,  we  expect  to  rely  on  third-party  contractors  to  manufacture  our  products.  We  have  no  current  plans  to  build
internal manufacturing capacity for any product candidate, and we have no long-term supply arrangements.

Our reliance on third-party manufacturers exposes us to potential risks, such as the following:

•

•

• we  may  be  unable  to  contract  with  third-party  manufacturers  on  acceptable  terms,  or  at  all,  because  the  number  of  potential  manufacturers  is
limited.  Potential  manufacturers  of  any  product  candidate  that  is  approved  will  be  subject  to  FDA  compliance  inspections  and  any  new
manufacturer would have to be qualified to produce our products;
our third-party manufacturers might be unable to formulate and manufacture our product candidates and products in the volume and of the quality
required to meet our clinical and commercial needs, if any;
our third-party manufacturers may not perform as agreed or may not remain in the contract manufacturing business for the time required to supply
our clinical trials through completion or to successfully produce, store and distribute our commercial products, if approved;
drug  manufacturers  are  subject  to  ongoing  periodic  unannounced  inspection  by  the  FDA  and  other  government  agencies  to  ensure  compliance
with  cGMP  and  other  government  regulations  and  corresponding  foreign  standards.  We  do  not  have  control  over  third-party  manufacturers’
compliance with these regulations and standards, but we may ultimately be responsible for any of their failures;
if any third-party manufacturer makes improvements in the manufacturing process for our product candidates, we may not own, or may have to
share, the intellectual property rights to such improvements; and
a third-party manufacturer may gain knowledge from working with us that could be used to supply one of our competitors with a product that
competes with ours.

•

•

•

Each  of  these  risks  could  delay  or  have  other  adverse  impacts  on  our  clinical  trials  and  the  approval  and  commercialization  of  our  product  candidates,
potentially resulting in higher costs, reduced revenues or both.

Risks Related to Our Intellectual Property

Other companies or organizations may assert patent rights that prevent us from developing or commercializing our products.

RNAi, capsid inhibitors and RNA destabilizer, as well as our other novel HBV assets, have generated many different patent applications from organizations
and  individuals  seeking  to  obtain  patents  in  the  field.  These  applications  claim  many  different  methods,  compositions  and  processes  relating  to  the
discovery, development and commercialization of these therapeutic products. It is likely that there could be litigation and other proceedings, such as inter
partes review and opposition proceedings in various patent offices, relating to patent rights in RNAi, capsid inhibitors, RNA destabilizer and other small
molecule compounds targeted at HBV. We are aware of patents and patent applications owned by third parties that may in the future be alleged by such
third parties to cover the use of one or more of our products. We may need to acquire or obtain a license from

50

such third parties to any such issued patents to market or sell any such products, which may not be available on commercially acceptable terms or at all. If
such third parties obtain valid and enforceable patents and successfully prove infringement of an approved Arbutus product, and we are not able to acquire
such issued patents or negotiate a license on acceptable terms, and if such approved Arbutus product is determined to infringe any such issued patents, then
we may be forced to pay royalties, damages and costs, or we may be prevented from commercializing such approved Arbutus product altogether, which
could have a material adverse impact on our business.

Our patents and patent applications may be challenged and may be found to be invalid, which could adversely affect our business.

Certain United States, Canadian and international patents and patent applications we own involve complex legal and factual questions for which important
legal principles are largely unresolved. For example, no consistent policy has emerged for the breadth of biotechnology patent claims that are granted by
the USPTO or enforced by the United States federal courts. In addition, the coverage claimed in a patent application can be significantly reduced before a
patent is issued. Also, we face at least the following intellectual property risks:

•
•
•
•
•

some or all patent applications may not result in the issuance of a patent;
patents issued to us may not provide us with any competitive advantages;
patents could be challenged by third parties;
competitors may find ways to design around our patents; and
competitors could independently develop products which duplicate our products.

A number of industry competitors and institutions have developed technologies, filed patent applications or received patents on various technologies that
may be related to or affect our business. Some of these technologies, applications or patents may conflict with our technologies or patent applications. Such
conflict could limit the scope of the patents, if any, that we may be able to obtain or result in the denial of our patent applications. In addition, we could
incur substantial costs in filing suits against others to have such patents declared invalid. As publication of discoveries in the scientific or patent literature
often lags behind actual discoveries, we cannot be certain we or any licensor was the first creator of inventions covered by pending patent applications or
that we or such licensor was the first to file patent applications for such inventions. Any future proceedings could result in substantial costs, even if the
eventual outcomes are favorable. There can be no assurance that our patents, if issued, will be held valid or enforceable by a court or that a competitor’s
technology or product would be found to infringe such patents.

We may incur substantial costs as a result of litigation or other proceedings relating to patent and other intellectual property rights which could have a
material  adverse  effect  on  our  business,  financial  condition  and  results  of  operations  and  could  cause  the  market  value  of  our  common  shares  to
decline.

There has been significant litigation in the biotechnology industry over contractual obligations, patents and other proprietary rights, and we may become
involved  in  various  types  of  litigation  that  arise  from  time  to  time.  Involvement  in  litigation  could  consume  a  substantial  portion  of  our  resources,
regardless of the outcome of the litigation. Counterparties in litigation may be better able to sustain the costs of litigation because they have substantially
greater resources. If claims against us are successful, in addition to any potential liability for damages, we could be required to obtain a license, grant cross-
licenses,  and  pay  substantial  milestones  or  royalties  in  order  to  continue  to  develop,  manufacture  or  market  the  affected  products.  Involvement  and
continuation of involvement in litigation may result in significant and unsustainable expense, and divert management’s attention from ongoing business
concerns and interfere with our normal operations. Litigation is also inherently uncertain with respect to the time and expenses associated therewith, and
involves risks and uncertainties in the litigation process itself, such as discovery of new evidence or acceptance of unanticipated or novel legal theories,
changes in interpretation of the law due to decisions in other cases, the inherent difficulty in predicting the decisions of judges and juries and the possibility
of appeals. Ultimately we could be prevented from commercializing a product or be forced to cease some aspect of our business operations as a result of
claims of patent infringement or violation of other intellectual property rights and the costs associated with litigation, which could have a material adverse
effect on our business, financial condition, and operating results and could cause the market value of our common shares to decline.

51

Confidentiality  agreements  with  employees  and  others,  including  collaborators,  may  not  adequately  prevent  disclosure  of  trade  secrets  and  other
proprietary information.

Much of our know-how and technology may constitute trade secrets. There can be no assurance, however, that we will be able to meaningfully protect our
trade secrets. In order to protect our proprietary technology and processes, we rely in part on confidentiality agreements with our collaborators, employees,
vendors, consultants, outside scientific collaborators and sponsored researchers, and other advisors. These agreements offer only limited protection, and as
such  may  not  effectively  prevent  disclosure  of  confidential  information  and  also  may  not  provide  an  adequate  remedy  in  the  event  of  unauthorized
disclosure of confidential information. In addition, others may independently discover trade secrets and proprietary information, and in such cases we could
not assert any trade secret rights against such party. Costly and time consuming litigation could continue to be necessary to enforce and determine the scope
of our proprietary rights, and failure to obtain or maintain trade secret protection could adversely affect our competitive business position.

Risks Related to the Ownership of our Common Shares

The concentration of common share ownership will likely limit the ability of the other shareholders to influence corporate matters.

As of March 3, 2022, executive officers, directors, five percent or greater shareholders, and their respective affiliated entities beneficially owned, in the
aggregate, approximately 28% of our outstanding common shares.

Entities  associated  with  Roivant  Sciences  Ltd.  (“Roivant”)  collectively  held  as  a  group  approximately  26%  of  our  outstanding  common  shares  as  of
March 3, 2022.

As a result, Roivant can significantly influence the outcome of matters requiring shareholder approval, including the election of directors, amendments of
our organizational documents, or approval of any merger, sale of assets or other major corporate transaction. This may prevent or discourage unsolicited
acquisition proposals or offers for our common shares that you may feel are in your best interest. The interests of Roivant may not always coincide with
your  interests  or  the  interests  of  other  shareholders  and  they  may  act  in  a  manner  that  advances  their  best  interests  and  not  necessarily  those  of  other
shareholders, including seeking a premium value for their common shares. These actions might affect the prevailing market price for our common shares.
In  addition,  Roivant  and  certain  of  our  other  principal  shareholders  that  have  held  their  shares  for  several  years  may  be  more  interested  in  selling  our
company  to  an  acquirer  than  other  investors,  or  they  may  want  us  to  pursue  strategies  that  deviate  from  the  interests  of  other  shareholders.  Such
concentration of ownership control may also:

•
•
•

delay, defer or prevent a change in control;
entrench our management and/or the board of directors; or
impede a merger, consolidation, takeover or other business combination involving us that other shareholders may desire.

We are incorporated in Canada, with our assets located both in Canada and the United States, with the result that it may be difficult for investors to
enforce judgments obtained against us or some of our officers.

We  are  incorporated  under  the  laws  of  the  Province  of  British  Columbia  and  some  of  our  assets  are  located  outside  the  United  States.  While  we  have
appointed National Registered Agents, Inc. as our agent for service of process to effect service of process within the United States upon us, it may not be
possible  for  you  to  enforce  against  us  or  our  insiders  in  the  United  States,  judgments  obtained  in  United  States  courts  based  upon  the  civil  liability
provisions of the United States federal securities laws or other laws of the United States. In addition, there is doubt as to whether original action could be
brought  in  Canada  against  us  or  our  directors  or  officers  based  solely  upon  United  States  federal  or  state  securities  laws  and  as  to  the  enforceability  in
Canadian courts of judgments of United States courts obtained in actions based upon the civil liability provisions of United States federal or state securities
laws.

Conversely, all of our directors and officers reside outside Canada, and the majority of our physical assets are also located outside Canada. While we have
appointed Farris LLP as our agent for service of process in Canada, it may not be possible for you to enforce in Canada against our assets or those directors
and officers residing outside Canada, judgments obtained in Canadian courts based upon the civil liability provisions of the Canadian securities laws or
other laws of Canada.

52

If we are deemed to be a “passive foreign investment company” for the current or any future taxable year, investors who are subject to United States
federal taxation would likely suffer materially adverse United States federal income tax consequences.

We generally will be a “passive foreign investment company” under the meaning of Section 1297 of the Code (a “PFIC”) if (a) 75% or more of our gross
income  is  “passive  income”  (generally,  dividends,  interest,  rents,  royalties,  and  gains  from  the  disposition  of  assets  producing  passive  income)  in  any
taxable year, or (b) if at least 50% or more of the quarterly average value of our assets produce, or are held for the production of, passive income in any
taxable year. We have determined that we have not been a PFIC for the three taxable years ended December 31, 2021, however recent changes to Treasury
regulations under the Code have made this determination more challenging for us, and we cannot provide any assurances that we will not become a PFIC in
the future. If we are a PFIC for any taxable year during which a United States person holds our common shares, it would likely result in materially adverse
United States federal income tax consequences for such United States person, including, but not limited to, any gain from the sale of our common shares
would  be  taxed  as  ordinary  income,  as  opposed  to  capital  gain,  and  such  gain  and  certain  distributions  on  our  common  shares  would  be  subject  to  an
interest charge, except in certain circumstances. It may be possible for United States persons to fully or partially mitigate such tax consequences by making
a “qualifying electing fund election,” as defined in the Code (a “QEF Election”), but although we have provided this information in the past, there is no
requirement that we do so.

Our articles and certain Canadian laws could delay or deter a change of control.

Our preferred shares are available for issuance from time to time at the discretion of our board of directors, without shareholder approval. Our articles allow
our board, without shareholder approval, to determine the special rights to be attached to our preferred shares, and such rights may be superior to those of
our common shares.

In addition, limitations on the ability to acquire and hold our common shares may be imposed by the Competition Act in 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 subjects an acquisition of control of a Canadian-
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 result in 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.

General Risk Factors

If we are unable to attract and retain qualified key management, scientific staff, consultants and advisors, our ability to implement our business plan
may be adversely affected.

We depend upon our senior executive officers as well as key scientific, management and other personnel. The competition for qualified personnel in the
biotechnology field is intense. We rely heavily on our ability to attract and retain qualified managerial, scientific and technical staff. The loss of the service
of any of the members of our senior management, including William H. Collier, our President and Chief Executive Officer, Michael J. Sofia, our Chief
Scientific Officer, and Gaston Picchio, our Chief Development Officer, may adversely affect our ability to develop our technology, add to our pipeline,
advance our product candidates and manage our operations. We do not carry key person life insurance on any of our employees.

We  rely  on  consultants  and  advisors,  including  scientific  and  clinical  advisors,  to  assist  us  in  formulating  our  research  and  development  and
commercialization  strategy.  Our  consultants  and  advisors  may  be  employed  by  other  entities  and  may  have  commitments  under  consulting  or  advisory
contracts with those entities that may limit their availability to us. If we are unable to continue to attract and retain highly qualified personnel, our ability to
develop and commercialize our product candidates will be limited.

53

We could face liability from our controlled use of hazardous and radioactive materials in our research and development processes.

We use certain radioactive materials, biological materials and chemicals, including organic solvents, acids and gases stored under pressure, in our research
and  development  activities.  Our  use  of  radioactive  materials  is  regulated  by  the  United  States  Nuclear  Regulatory  Commission  and  Pennsylvania
Department of Environmental Protection for the possession, transfer, import, export, use, storage, handling and disposal of radioactive materials. Our use of
biological materials and chemicals, including the use, manufacture, storage, handling and disposal of such materials and certain waste products is regulated
by a number of federal, state and local laws and regulations. Although we believe that our safety procedures for handling such materials comply with the
standards prescribed by such laws and regulations, the risk of accidental contamination or injury from these materials cannot be completely eliminated. In
the event of such an accident, we could be held liable for any damages that result or penalized with fines, and any such liability could exceed our resources.
We are not specifically insured with respect to this liability.

Our business, reputation, and operations could suffer in the event of information technology system failures, such as a cybersecurity breach.

We are increasingly dependent on sophisticated software applications and computing infrastructure to conduct critical operations. We depend on both our
own  systems,  networks,  and  technology  as  well  as  the  systems,  networks  and  technology  of  our  contractors,  consultants,  vendors  and  other  business
partners. Disruption, degradation, or manipulation of systems, networks or technology through intentional or accidental means could materially adversely
impact key business processes. Despite the implementation of security measures, our systems, networks and technology and those of our contractors and
consultants are vulnerable to damage from computer viruses (including ransomware), cybersecurity breaches and other forms of unauthorized access, as
well as natural disasters, terrorism, war, telecommunication and electrical failures, cyberattacks, phishing or other fraudulent schemes, persons inside our
organization, or persons with access to systems inside our organization or those with whom we do business. The risk of a cyberattack or other cybersecurity
incidents  has  generally  increased  as  the  number,  intensity  and  sophistication  of  attempted  attacks  and  intrusions  from  around  the  world  have  increased.
Although to date the cybersecurity incidents we have experienced have not resulted in any material losses, such events impacting either our own systems,
networks  and  technology,  or  those  of  our  contractors,  consultants,  vendors,  or  other  business  partners  could  threaten  the  confidentiality,  integrity  and
availability of regulated personal information, confidential information or intellectual property. This could result in the modification of critical data, the loss
of Company funds and/or the failure or interruption of critical operations. For example, the loss of pre-clinical trial data or data from completed or ongoing
clinical trials for our product candidates could result in delays in our regulatory filings and development efforts and significantly increase our costs. There
can be no assurance that our efforts to protect data and systems will prevent service interruption or the loss of critical or sensitive information from our or
third party providers’ databases or systems. Additionally, while we have implemented security measures that we believe are appropriate and continue to
enhance cybersecurity protections, a regulator could deem our security measures not to be appropriate given the lack of prescriptive measures in certain
data  protection  laws.  To  the  extent  that  any  disruption  or  cybersecurity  incident  results  or  appears  to  result  in  such  interruption  or  loss,  we  could  incur
material  financial,  legal,  business  or  reputational  harm,  including  regulatory  fines,  penalties  or  intervention,  or  claims  by  third  parties  that  we  have
breached privacy- or confidentiality-related obligations. Furthermore, the development of our product candidates could be delayed, and our insurance may
not provide any or adequate coverage of any such losses.

We may acquire other assets or businesses, or form strategic alliances or collaborations or make investments in other companies or technologies that
could harm our financial condition, results of operations or cash flows, dilute our shareholders’ ownership, incur debt or cause us to incur significant
expense.

As  part  of  our  business  strategy,  we  may  pursue  acquisitions  of  assets  or  businesses,  or  strategic  alliances  or  collaborations,  to  expand  our  existing
technologies and operations. We may not identify or complete these transactions in a timely manner, on a cost-effective basis, or at all, and we may not
realize the anticipated benefits of any such transaction, any of which could have a detrimental effect on our financial condition, results of operations or cash
flows.  We  may  not  be  able  to  find  suitable  acquisition  candidates,  and  if  we  make  any  acquisitions,  we  may  not  be  able  to  integrate  these  acquisitions
successfully  into  our  existing  business  and  we  may  incur  debt  or  assume  unknown  or  contingent  liabilities  in  connection  therewith.  Integration  of  an
acquired company or assets may also disrupt ongoing operations, require the hiring of additional personnel and the implementation of additional internal
systems and infrastructure, especially the acquisition of commercial assets, and require management

54

resources  that  would  otherwise  focus  on  developing  our  existing  business.  We  may  not  be  able  to  find  suitable  collaboration  partners  or  identify  other
investment opportunities, and we may experience losses related to any such investments.

To finance any acquisitions or collaborations, we may choose to issue debt or equity securities as consideration. Any such issuance of shares would dilute
the ownership of our shareholders. If the price of our common shares is low or volatile, we may not be able to acquire other assets or businesses or fund a
transaction using our equity securities as consideration. Alternatively, it may be necessary for us to raise additional capital for acquisitions through public
or private financings. Additional capital may not be available on terms that are favorable to us, or at all.

55

Item 1B. Unresolved Staff Comments

There are currently no unresolved staff comments.

Item 2. Properties

Since  November  1,  2016,  we  have  had  a  lease  agreement  for  our  headquarters  at  701  Veterans  Circle,  Warminster,  Pennsylvania.  The  building  has
approximately 35,000 square feet of laboratory facilities and office space. The lease expires on April 30, 2027. We also have the option of extending the
lease for two further five-year terms.

From January 2019 through June 2021, we leased approximately 8,500 square feet of office space at 626 Jacksonville Rd, Warminster, Pennsylvania. In
mid-2021, we amended the contract to relet a portion of the leased space. In addition, as the initial three-year lease term was set to expire on December 31,
2021, we extended the lease through December 31, 2022. We have an option to extend the lease term to April 30, 2027.

We believe that the total space available to us under our current leases will meet our needs for the foreseeable future and that additional space would be
available to us on commercially reasonable terms if required.

Item 3. Legal Proceedings

In  February  2022,  Arbutus  and  Genevant  filed  a  lawsuit  in  the  U.S.  District  Court  for  the  District  of  Delaware  against  Moderna,  Inc.  and  a  Moderna
affiliate seeking damages for infringement of U.S. Patent Nos. 8,058,069, 8,492,359, 8,822,668, 9,364,435, 9,504,651, and 11,141,378 in the manufacture
and sale of MRNA-1273, Moderna’s vaccine for COVID-19. The patents relate to nucleic acid-lipid particles and lipid vesicles, as well as compositions
and methods for their use. Arbutus and Genevant do not seek an injunction or otherwise seek to impede the sale, manufacture or distribution of MRNA-
1273. However,  the  Company  seeks  fair  compensation  for  Moderna’s  use  of  its  patented  technology  that  was  developed  with  great  effort  and  at  great
expense, without which Moderna’s COVID-19 vaccine would not have been successful.

We are also involved with various legal matters arising in the ordinary course of business. We make provisions for liabilities when it is both probable that a
liability has been incurred and the amount of the loss can be reasonably estimated. Such provisions are reviewed at least quarterly and adjusted to reflect
the  impact  of  any  settlement  negotiations,  judicial  and  administrative  rulings,  advice  of  legal  counsel,  and  other  information  and  events  pertaining  to  a
particular case. Litigation is inherently unpredictable. Although the ultimate resolution of these various matters cannot be determined at this time, we do
not believe that such matters, individually or in the aggregate, will have a material adverse effect on our consolidated results of operations, cash flows, or
financial condition.

University of British Columbia

Certain early work on lipid nanoparticle delivery systems and related inventions was undertaken at the University of British Columbia (“UBC”), as well as
by us that was subsequently assigned to UBC. These inventions are licensed to us by UBC under a license agreement, initially entered into in 1998 and as
amended in 2001, 2006 and 2007. We granted sublicenses under the UBC license to certain third parties, including Alnylam. In November 2014, UBC filed
a demand for arbitration against us which alleged entitlement to unpaid royalties. In August 2019, the arbitrator issued his decision for the second phase or
the arbitration, awarding UBC $5.9 million, which included interest of approximately $2.6 million. We paid the $5.9 million award to UBC in September
2019 and paid an additional $0.2 million award for costs and attorneys’ fees in March 2021, and this matter is now fully resolved.

On December 18, 2020, UBC delivered to us a notice of arbitration alleging that under its cross license with us, it is due royalties of $2.0 million plus
interest arising from our sale to OMERS of part of our royalty interest on future global net sales of ONPATTRO, currently being sold by Alnylam. Oral
hearings  for  this  matter  are  currently  scheduled  to  begin  on  April  25,  2022.  We  do  not  believe  that  any  royalties  are  due  to  UBC  and  we  intend  to
vigorously contest UBC’s allegations.

Item 4. Mine Safety Disclosures

56

 
Not applicable.

57

PART II

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

Our common shares trade on the Nasdaq Global Select Market under the symbol “ABUS” following our name change to Arbutus Biopharma Corporation
on July 31, 2015. As of March 3, 2022, there were 103 registered holders of common shares and 148,641,736 common shares issued and outstanding.

Securities Authorized for Issuance under Equity Compensation Plans

Information regarding securities authorized for issuance under equity compensation plans is incorporated by reference into the information in Part III, Item
12 of this Form 10-K.

Recent Sales of Unregistered Securities

We did not issue any unregistered equity securities during the year ended December 31, 2021.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

We did not repurchase any of our equity securities during the year ended December 31, 2021.

Item 6. Reserved

58

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

Overview

Arbutus  Biopharma  Corporation  (“Arbutus”,  the  “Company”,  “we”,  “us”,  and  “our”)  is  a  clinical-stage  biopharmaceutical  company  leveraging  its
extensive virology expertise to develop novel therapeutics that target specific viral diseases. Our current focus areas include Hepatitis B virus (“HBV”),
SARS-CoV-2 and other coronaviruses. In HBV, we are developing an RNA interference (“RNAi”) therapeutic, oral capsid inhibitor, oral PD-L1 inhibitor,
and oral RNA destabilizer that we intend to combine to provide a functional cure for patients with chronic HBV infection (“cHBV”) by suppressing viral
replication,  reducing  surface  antigen  and  reawakening  the  immune  system.  We  believe  our  lead  compound,  AB-729,  is  the  only  RNAi  therapeutic  with
evidence  of  immune  re-awakening,  and  is  currently  being  evaluated  in  multiple  phase  2  clinical  trials.  We  have  an  ongoing  drug  discovery  and
development  program  directed  to  identifying  novel,  orally  active  agents  for  treating  coronaviruses  (including  SARS-CoV-2).  We  are  also  exploring
oncology applications for our internal PD-L1 portfolio.

Our product pipeline consists of the following programs:

AB-729, our proprietary subcutaneously-delivered RNAi therapeutic product candidate that suppresses HBsAg expression, which is thought to be a key
prerequisite to enable reawakening of a patient’s immune system to respond to HBV, is currently in one ongoing Phase 1a/1b clinical trial and three Phase
2a proof-of-concept clinical trials in combination with other agents with potentially complementary mechanisms of action. Preliminary data from the Phase
1a/1b clinical trial has shown that treatment with AB-729 resulted in meaningful declines in HBsAg while being well tolerated with no serious adverse
events (“SAEs”) noted after both single and repeat dosing. Preliminary data also suggests that long-term suppression of HBsAg with AB-729 results in
increased HBV-specific immune response.

AB-836, our proprietary next-generation oral capsid inhibitor that suppresses HBV DNA replication, is currently in an ongoing Phase 1a/1b clinical trial
where preliminary data from healthy subjects and HBV patients have shown that AB-836 is generally safe and well-tolerated with robust antiviral activity.
AB-836 is from a novel chemical series differentiated from competitor compounds and has the potential to provide increased efficacy and an enhanced
resistance profile.

59

AB-101, our oral PD-L1 inhibitor that has the potential to reawaken patients’ HBV-specific immune response by inhibiting PD-L1, is advancing through
lead optimization. We are also exploring potential oncology applications for our internal PD-L1 portfolio.

AB-161, our next-generation oral HBV specific RNA destabilizer, is advancing through lead optimization. We have conducted extensive non-clinical safety
evaluations with AB-161 that gives us confidence in this molecule’s ability to circumvent the peripheral neuropathy findings seen in non-clinical safety
studies with our first-generation oral RNA destabilizer, AB-452.

Our coronavirus program is focused on the discovery and development of new molecular entities for treating coronaviruses (including COVID-19) that
address specific viral targets including the nsp12 viral polymerase and the nsp5 viral protease (nucleos(t)ide).

COVID-19 Impact

We continue to monitor the effects of COVID-19, which has caused significant disruptions around the world. A number of countries and other jurisdictions
around the world have implemented extreme measures in attempts to slow the spread of the virus. These measures include the closing of businesses and
requiring people to stay in their homes, the latter of which raises uncertainty regarding the ability to travel to hospitals in order to participate in clinical
trials.  Additional  measures  that  have  had,  and  will  likely  continue  to  have,  a  major  impact  on  clinical  development,  at  least  in  the  near-term,  include
shortages  and  delays  in  the  supply  chain,  and  prohibitions  in  certain  countries  on  enrolling  patients  in  new  clinical  trials.  While  we  have  been  able  to
progress with our clinical and pre-clinical activities to date, it is not possible to predict if the COVID-19 pandemic will materially impact our plans and
timelines in the future.

Collaborations and Royalty Entitlements

Qilu Pharmaceutical Co, Ltd.

In December 2021, we entered into a technology transfer and exclusive license agreement (the “License Agreement”) with Qilu Pharmaceuticals Co., Ltd.
(“Qilu”),  pursuant  to  which  we  granted  Qilu  an  exclusive  (except  as  to  certain  retained  rights),  sublicensable,  royalty-bearing  license,  under  certain
intellectual property owned by us, to develop, manufacture and commercialize AB-729, including pharmaceutical products that include AB-729, for the
treatment or prevention of hepatitis B in China, Hong Kong, Macau and Taiwan (the “Territory”).

In partial consideration for the rights granted by us, Qilu paid us a one-time upfront cash payment of $40 million on January 5, 2022 and agreed to pay us
milestone payments totaling up to $245 million, net of withholding taxes, upon the achievement of certain technology transfer, development, regulatory and
commercialization milestones. Qilu also agreed to pay us double digit royalties into the low twenties percent based upon annual net sales of AB-729 in the
Territory. The royalties are payable on a product-by-product and region-by-region basis, subject to certain limitations.

Qilu is responsible for all costs related to developing, obtaining regulatory approval for, and commercializing AB-729 for the treatment or prevention of
hepatitis B in the Territory. Qilu is required to use commercially reasonable efforts to develop, seek
regulatory  approval  for,  and  commercialize  at  least  one  AB-729  product  candidate  in  the  Territory.  A  joint  development  committee  will  be  established
between us and Qilu to coordinate and review the development, manufacturing and commercialization plans. Both parties also agreed to negotiate in good
faith the terms and conditions of a supply agreement and
related quality agreement pursuant to which we will manufacture or have manufactured and supply Qilu with all quantities of AB-729 necessary for Qilu to
develop and commercialize in the Territory until we have completed manufacturing technology transfer to Qilu and approval of a product manufactured by
Qilu, or its designated contract manufacturing organization, by National Medical Products Administration in China for AB-729.

Concurrent with the execution of the License Agreement, we entered into a Share Purchase Agreement (the “Share Purchase Agreement”) with Anchor
Life Limited, a company established pursuant to the applicable laws and regulations of Hong Kong and an affiliate of Qilu (the “Investor”), pursuant to
which the Investor purchased 3,579,952 of our common shares, without par value (the “Common Shares”), at a purchase price of USD $4.19 per share,
which was a 15% premium on the thirty-day average closing price of the Common Shares as of the close of trading on December 10, 2021 (the “Share
Transaction”). We

60

received $15.0 million of gross proceeds from the Share Transaction on January 6, 2022. The Common Shares sold to the Investor in the Share Transaction
represented approximately 2.5% of the Common Shares outstanding immediately prior to the execution of the Share Purchase Agreement.

Alnylam Pharmaceuticals, Inc. and Acuitas Therapeutics, Inc

We  have  a  royalty  entitlement  on  ONPATTRO®  (Patisiran)  (“ONPATTRO”),  a  drug  developed  by  Alnylam  Pharmaceuticals,  Inc.  (“Alnylam”)  under  a
license agreement with us that incorporates our lipid nanoparticle delivery (“LNP”) technology. In July 2019, we received $20 million in gross proceeds
before advisory fees from the sale of this royalty interest to Ontario Municipal Employees Retirement System (“OMERS”), effective as of January 1, 2019.
The royalty interest will revert back to us after OMERS receives $30 million in royalty payments from Alnylam. We also have rights to a second, lower
royalty interest on global net sales of ONPATTRO originating from a settlement agreement and subsequent license agreement with Acuitas Therapeutics,
Inc. (“Acuitas”). The royalty entitlement from Acuitas has been retained by us and was not part of the royalty entitlement sale to OMERS.

Genevant Sciences, Ltd.

As of December 31, 2021, we owned approximately 16% of the common equity of Genevant Sciences Ltd. (“Genevant”), a company we launched with
Roivant  Sciences,  Ltd.  and  to  which  we  licensed  rights  to  our  lipid  nanoparticle  ("LNP")  and  ligand  conjugate  delivery  platforms  for  RNA-based
applications outside of HBV, except to the extent certain rights had already been licensed to other third parties (the “Genevant License”). We retained all
rights to our LNP and conjugate delivery platforms for HBV. Under the Genevant License, as amended, if a third party sublicensee of intellectual property
licensed by Genevant from us commercializes a sublicensed product, we become entitled to receive a specified percentage of certain revenue that may be
received by Genevant for such sublicense, including royalties, commercial milestones and other sales-related revenue, or, if less, tiered low single-digit
royalties on net sales of the sublicensed product. The specified percentage is 20% in the case of a mere sublicense (i.e., naked sublicense) by Genevant
without additional contribution and 14% in the case of a bona fide collaboration with Genevant.

Refer  to  “Item  1.  Business.”  and  Note  9  of  the  Consolidated  Financial  Statements  for  a  discussion  of  our  clinical  collaborations  and  other  royalty
entitlements.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Contingent Consideration

The significant accounting policy that we believe to be most critical in fully understanding and evaluating our financial results relates to our contingent
consideration. This accounting policy requires us to make certain estimates and assumptions. We believe that the estimates and assumptions upon which we
rely are reasonable, based upon information available to us at the time that these estimates and assumptions are made.  Actual results may differ from our
estimates. Our critical accounting estimates affect the calculation of our net income or loss.

61

 
In connection with the acquisition of Enantigen Therapeutics, Inc. (“Enantigen”) in October 2014, we have obligations to make potential future payments
of  up  to  $102.5  million  upon  the  achievement  of  certain  commercial  milestones. The  sales  milestones  are  tied  to  the  first  commercial  sales  by  us  of  a
product  indicated  for  the  treatment  of  cHBV.  These  potential  contingent  payments  are  recorded  as  a  liability  and  remeasured  to  fair  value  as  of  each
reporting  date.    In  assessing  the  fair  value  of  the  liability,  significant  judgments  are  required  to  be  made  by  management  to  estimate  the  probability  of
program success, the timing and extent of future product sales, appropriate discount rates, and other estimates and assumptions that could materially affect
the determination of fair value.

In  order  to  estimate  the  probability  of  program  success,  we  evaluate  the  status  and  progress  of  our  relevant  programs  and  consider  statistics  and
probabilities  related  to  other  relevant  programs’  success  rates.  As  our  relevant  programs  have  advanced  in  clinical  trials,  we  updated  our  assumptions
related  to  probability  of  success  in  2021.  For  the  timing  and  extent  of  future  product  sales,  we  also  consider  the  status  and  progress  of  our  relevant
programs, future forecasts and other macroeconomic indicators that forecast market conditions. The discount rate at which we calculate the present value of
our potential future liability, is based on consideration of market-comparative data, market-based discount rates, and company-specific risk premiums.

As  assumptions  related  to  the  probability  of  program  success  and  timing  and  amount  of  potential  future  product  sales  are  highly  uncertain  due  to  the
unpredictable nature of product development, we assessed the sensitivity of the fair value measurement to changes in assumptions, and determined that
changes within a reasonable range would not result in a materially different assessment of fair value.  

62

RESULTS OF OPERATIONS

The following summarizes our results of operations for the year ended December 31, 2021 compared to the year ended December 31, 2020:
Year Ended December 31,

Total revenue
Total operating expenses
Loss from operations

Other income (loss)

Net loss

Dividend accretion of convertible preferred shares

Net loss attributable to common shares

2021

2020

(in thousands)

$

$

10,988  $
84,510 
(73,522)
(2,725)
(76,247)
(12,139)
(88,386) $

6,914 
64,720 
(57,806)
(5,939)
(63,745)
(12,123)
(75,868)

For  the  fiscal  year  ended  December  31,  2021,  our  net  loss  attributable  to  common  shares  was  $88.4  million,  or  a  loss  of  $0.83  per  basic  and  diluted
common share, as compared to a net loss of $75.9 million, or a loss of $1.00 per basic and diluted common share, for the year ended December 31, 2020.

Revenue

Revenue for the years ended December 31, 2021 and 2020 is summarized in the following table:

Revenue from collaborations and licenses

Acuitas Therapeutics, Inc.
Acrotech Biopharma, LLC

Non-cash royalty revenue

Alnylam Pharmaceuticals, Inc.
Total revenue

Year ended December 31,

2021

2020

(in thousands, except percentages)

$

$

4,675 
205 

6,108 
10,988 

42 % $
2 %

56 %
100 % $

3,259 
269 

3,386 
6,914 

47 %
4 %

49 %
100 %

Revenue consists mainly of royalties received from other companies for sales of products that utilize our licensed technologies.

Total revenue increased $4.1 million for the year ended December 31, 2021 compared to 2020, due to a $4.1 million increase in license royalty revenue
from Alnylam and Acuitas due to the growth of Alnylam’s sales of ONPATTRO.

The royalty interest for ONPATTRO from Alnylam was sold to OMERS, effective as of January 1, 2019, for $20 million in gross proceeds before advisory
fees. OMERS will retain this entitlement until it has received $30 million in royalties, at which point 100% of such royalty interest on future global net
sales of ONPATTRO will revert back to us. OMERS has assumed the risk of collecting up to $30 million of future royalty payments from Alnylam and we
are not obligated to reimburse OMERS if they fail to collect any such future royalties. During the term of this agreement, we recognize non-cash royalty
revenue related to the sales of ONPATTRO. From the inception of the royalty sale through December 31, 2021, the Company has recorded an aggregate of
$11.2 million of non-cash royalty revenue for royalties earned by OMERS. The royalty interest for ONPATTRO from Acuitas was not part of the royalty
sale to OMERS and we have retained the rights to receive those royalties. Revenue contracts are described in more detail in “Item 1. Business.”

63

 
 
 
 
Operating expenses

Operating expenses for the years ended December 31, 2021 and 2020 are summarized in the following table:

Research and development
General and administrative
Change in fair value of contingent consideration
Site consolidation

Total operating expenses

Research and development

Year ended December 31,

2021

2020

(in thousands, except percentages)

$

$

65,502 
17,136 
1,872 
— 
84,510 

78 % $
20 %
2 %
— %
100 % $

49,338 
14,845 
473 
64 
64,720 

76 %
23 %
1 %
— %
100 %

Research  and  development  expenses  consist  primarily  of  personnel  expenses,  fees  paid  to  clinical  research  organizations  and  contract  manufacturers,
consumables and materials, consulting, and other third party expenses to support our clinical and pre-clinical activities, as well as a portion of stock-based
compensation and general overhead costs.

Research and development expenses increased $16.2 million in 2021 compared to 2020 due primarily to an increase in expenses related to our ongoing
AB-729  clinical  trials,  including  our  collaboration  with  Assembly,  an  increase  in  expenses  for  our  ongoing  AB-836  Phase  1a/1b  clinical  trial,  and  an
increase in expenses for our early stage development programs, including our coronavirus program, AB-101 and AB-161.

A  significant  portion  of  our  research  and  development  expenses  are  not  tracked  by  project,  as  they  benefit  multiple  projects  or  our  overall  technology
platform.

General and administrative

General  and  administrative  expenses  increased  $2.3  million  in  2021  compared  to  2020,  due  primarily  to  an  increase  in  employee  compensation  costs,
stock-based compensation expense, insurance premiums and professional fees.

Change in fair value of contingent consideration

In October 2014, Arbutus Inc., our wholly-owned subsidiary, acquired all of the outstanding shares of Enantigen pursuant to a stock purchase agreement.
The amount paid to Enantigen’s selling shareholders could be up to an additional $102.5 million in sales performance milestones in connection with the
sale  of  the  first  commercialized  product  by  us  for  the  treatment  of  HBV,  regardless  of  whether  such  product  is  based  upon  assets  acquired  under  this
agreement, and a low single-digit royalty on net sales of such first commercialized HBV product, up to a maximum royalty payment of $1.0 million.

In  general,  increases  in  the  fair  value  of  the  contingent  consideration  are  related  to  the  progress  of  our  programs  as  they  get  closer  to  triggering  these
contingent  payments.  In  2021,  the  fair  value  of  our  contingent  consideration  liability  increased  $1.9  million,  primarily  related  to  the  progression  of  our
programs through clinical trials and our assessment of the probability of commercialization. In 2020, the fair value of our contingent consideration liability
increased by $0.5 million, primarily related to the passage of time.

64

 
 
 
 
 
Site consolidation charges

In  February  2018,  we  announced  a  site  consolidation  and  organizational  restructuring  to  better  align  our  HBV  business  in  Warminster,  PA,  including
closing  our  Burnaby,  Canada  facility.  Most  of  the  employee-related  site  consolidation  expenses  were  expensed  ratably  over  the  period  that  employees
provided  services,  which  was  substantially  completed  in  2018.  Total  site  consolidation  expenses  were  $5.0  million,  which  was  fully  recognized  as  of
December 31, 2020.

Other income (losses)

Other income (losses) for the years ended December 31, 2021 and 2020 are summarized in the following table:

Interest income
Interest expense
Equity investment loss
Foreign exchange gain (loss)
Total other loss

Interest income

2021

127 
(2,857)
— 
5 
(2,725)

Year ended December 31,

2020

(in thousands, except percentages)

(5)% $

105 %
— %
— %
100 % $

741 
(4,011)
(2,545)
(124)
(5,939)

$

$

(12)%
68 %
43 %
2 %
100 %

Interest income decreased $0.6 million in 2021 compared to 2020 due primarily to a general decline in market interest rates.

Interest expense

Interest expense decreased $1.2 million in 2021 compared to 2020 due primarily to a decrease in the non-cash amortization of discount and issuance costs
related to the sale of a portion of our ONPATTRO royalty interest to OMERS in July 2019.

Equity investment loss

In July 2020, we participated in the recapitalization of Genevant, led by Roivant, with an equity investment of $2.5 million. We determined that this $2.5
million  additional  investment  in  Genevant  was  funding  prior  losses  and  recorded  the  amount  as  an  equity  investment  loss  in  2020.  Due  to  our  loss  of
significant influence with respect to Genevant as a result of the recapitalization, we discontinued the use of equity method accounting for our interest in
Genevant  in  2020.  Following  the  recapitalization,  we  account  for  our  interest  in  Genevant  as  equity  securities  without  readily  determinable  fair  values.
Accordingly, an estimate of the fair value of the securities is based on the original cost less previously recognized equity method losses, less impairments,
plus  or  minus  changes  resulting  from  future  observable  price  changes  in  orderly  transactions  for  identical  or  similar  Genevant  securities.  As  of
December 31, 2021, the carrying value of our investment in Genevant was zero and we owned approximately 16% of the common equity of Genevant.

Foreign exchange gains (losses)

In connection with our site consolidation to Warminster, PA, our Canadian dollar-denominated expenses and cash balances have decreased significantly
now that a majority of our business transactions are based in the United States. We continue to incur expenses and hold some cash balances in Canadian
dollars, and as such, we will remain subject to risks associated with foreign currency fluctuations. During the year ended December 31, 2021, we recorded
foreign exchange gains of less than $0.1 million. During the year ended December 31, 2020, we recorded foreign exchange losses of $0.1 million.

65

 
LIQUIDITY AND CAPITAL RESOURCES 

Since our incorporation, we have financed our operations through the sales of equity, debt, revenues from research and development collaborations and
licenses  with  corporate  partners,  a  royalty  monetization,  interest  income  on  funds  available  for  investment,  and  government  contracts,  grants  and  tax
credits.

As of December 31, 2021, we had cash and cash equivalents of $109.3 million and investments in marketable securities of $81.7 million, totaling $191.0
million. In January 2022, we received a $40 million upfront payment and a $15 million equity investment from Qilu as part of a technology transfer and
exclusive licensing agreement to develop and commercialize AB-729 in the Territory. We had no outstanding debt as of December 31, 2021.

Sources of Liquidity

Sale Agreement

  with  Jefferies  dated  December  20,  2018,  as  amended  by  Amendment  No.  1,  dated  December  20,  2019,
We  have  an  Open  Market  Sale  Agreement
Amendment No. 2, dated August 7, 2020 and Amendment No. 3, dated March 4, 2021 (as amended, the “Sale Agreement”), under which we may offer and
sell common shares, from time to time.

SM

On  December  23,  2019,  we  filed  a  shelf  registration  statement  on  Form  S-3  with  the  SEC  (File  No.  333-235674)  and  accompanying  base  prospectus,
declared  effective  by  the  SEC  on  January  10,  2020  (the  “January  2020  Registration  Statement”),  for  the  offer  and  sale  of  up  to  $150  million  of  our
securities.

On August 28, 2020, we filed a shelf registration statement on Form S-3 with the SEC (File No. 333-248467) and accompanying base prospectus, declared
effective by the SEC on October 22, 2020 (the “October 2020 Registration Statement”), for the offer and sale of up to $200 million of our securities. On
March 4, 2021, we filed a prospectus supplement with the SEC in connection with the offering of up to an additional $75.0 million of our common shares
pursuant  to  the  Sale  Agreement  under  the  October  2020  Registration  Statement,  which  we  fully  utilized  during  2021.  On  October  8,  2021,  we  filed  a
prospectus  supplement  with  the  SEC  (the  “October  2021  Prospectus  Supplement”)  for  the  offer  and  sale  of  up  to  an  additional  $75.0  million  of  our
common shares pursuant to the Sale Agreement under the October 2020 Registration Statement.

On  November  4,  2021,  we  filed  a  shelf  registration  statement  on  Form  S-3  with  the  SEC  (File  No.  333-248467)  and  accompanying  base  prospectus,
declared effective by the SEC on November 18, 2021 (the “November 2021 Registration Statement”), for the offer and sale of up to $250 million of our
securities.

During the years ended December 31, 2021 and 2020, we issued 31,571,036 and 24,728,368 common shares, respectively, under the Sale Agreement, as
amended, resulting in net proceeds of approximately $134.7 million and $86.3 million, respectively.

Royalty Entitlements

Additionally, we have a royalty entitlement on ONPATTRO, a drug developed by Alnylam that incorporates our LNP technology and was approved by the
FDA and the EMA during the third quarter of 2018 and was launched by Alnylam immediately upon approval in the United States. In July 2019, we sold a
portion of this royalty interest to OMERS, effective as of January 1, 2019, for $20 million in gross proceeds before advisory fees. OMERS will retain this
entitlement until it has received $30 million in royalties, at which point 100% of such royalty interest on future global net sales of ONPATTRO will revert
to us. OMERS has assumed the risk of collecting up to $30 million of future royalty payments from Alnylam and Arbutus is not obligated to reimburse
OMERS if they fail to collect any such future royalties. If this royalty entitlement reverts to us, it has the potential to provide an active royalty stream or to
be otherwise monetized again in full or in part. In addition to the royalty from the Alnylam LNP license agreement, we are also receiving a second, lower
royalty interest on global net sales of ONPATTRO originating from a settlement agreement and subsequent license agreement with Acuitas. The royalty
from Acuitas has been retained by us and was not part of the royalty sale to OMERS.

In December 2021, we entered into a technology transfer and exclusive licensing agreement with Qilu pursuant to which we granted Qilu an exclusive
(with certain exceptions), sublicensable, royalty-bearing license, under certain intellectual property

66

owned by us, to develop, manufacture and commercialize AB-729 for the treatment or prevention of hepatitis B in the Territory. In partial consideration for
the rights granted by us, Qilu paid us a one-time upfront cash payment of $40 million and made an equity investment of $15.0 million, both received in
January 2022, and agreed to pay us milestone payments totaling up to $245 million, net of withholding taxes, upon the achievement of certain technology
transfer, development, regulatory and commercialization milestones. Qilu also agreed to pay us double digit royalties into the low twenties percent based
upon annual net sales of AB-729 in the Territory.

Cash requirements

We  believe  that  our  $191.0  million  of  cash  and  investments  in  marketable  securities  as  of  December  31,  2021,  plus  $55.0  million  of  gross  proceeds
received in January 2022 from Qilu as part of our technology transfer and licensing agreement, will be sufficient to fund our operations into the second
quarter of 2024 based on our expectation of a net cash burn between $90.0 million and $95.0 million in 2022. In the future, substantial additional funds will
be required to continue with the active development of our pipeline products and technologies. In particular, our funding needs may vary depending on a
number of factors including:

•

•

•

•

•

•

•

•

•

•

•

•

the effects of the COVID-19 pandemic on our business, the medical community and the global economy;

revenue  earned  from  our  legacy  collaborative  partnerships  and  licensing  agreements,  including  potential  royalty  payments  from  Alnylam’s
ONPATTRO;

revenue earned from ongoing collaborative partnerships, including milestone and royalty payments;

the potential requirement to make milestone payments related to our legacy agreements;

the extent to which we continue the development of our product candidates, add new product candidates to our pipeline, or form collaborative
relationships or licensing arrangements to advance our product candidates;

delays in the development of our product candidates due to pre-clinical and clinical findings;

our decisions to in-license or acquire additional products, product candidates or technology for development;

our ability to attract and retain development or commercialization partners, and their effectiveness in carrying out the development and ultimate
commercialization of one or more of our product candidates;

whether  batches  of  product  candidates  that  we  manufacture  fail  to  meet  specifications  resulting  in  clinical  trial  delays  and  investigational  and
remanufacturing costs;

the decisions, and the timing of decisions, made by health regulatory agencies regarding our technology and product candidates;

competing products, product candidates and technological and market developments; and

costs associated with prosecuting and enforcing our patent claims and other intellectual property rights, including litigation and arbitration arising
in the course of our business activities.

We intend to seek funding to maintain and advance our business from a variety of sources including public or private equity or debt financing, potential
monetization transactions, collaborative or licensing arrangements with pharmaceutical companies and government grants and contracts. There can be no
assurance that funding will be available at all or on acceptable terms to permit further development of our research and development programs. Further, the
continued spread of COVID-19 has also led to severe disruption and volatility in the global capital markets, which could increase our cost of capital and
adversely affect our ability to access the capital markets in the future.

If adequate funding is not available, we may be required to delay, reduce or eliminate one or more of our research or development programs or reduce
expenses associated with our non-core activities. We may need to obtain funds through arrangements with collaborators or others that may require us to
relinquish most or all of our rights to product candidates at an earlier stage of development or on less favorable terms than we would otherwise seek if we
were better funded. Insufficient financing may also mean failing to prosecute our patents or relinquishing rights to some of our technologies that we would
otherwise develop or commercialize.

67

Cash Flows

The following table summarizes our cash flow activities for the periods indicated:

Net loss
Non-cash items
Net change in operating items
Net cash used in operating activities
Net cash used in investing activities
Net cash provided by financing activities
Effect of foreign exchange rate changes on cash and cash equivalents
Increase in cash and cash equivalents
Cash and cash equivalents, beginning of period
Cash and cash equivalents, end of period

Year ended December 31,

2021

2020

(in thousands)

$

$

$

$

(76,247) $
7,785 
930 
(67,532) $
(12,678)
137,236 
5 
57,031  $
52,251 
109,282  $

(63,745)
11,873 
431 
(51,441)
(14,909)
86,746 
56 
20,452 
31,799 
52,251 

Net cash used in operating activities in 2021 increased $16.1 million compared to 2020 due primarily to an increase in research and development payments
of approximately $18.2 million, which was due primarily to an increase in research and development expenses for our clinical development and discovery
programs.

Net  cash  used  in  investing  activities  in  2021  decreased  by  $2.2  million  compared  to  2020  due  primarily  to  the  timing  of  maturities  and  acquisitions  of
investments in marketable securities.

Net cash from financing activities in 2021 increased $50.5 million compared to 2020. Cash provided by financing activities in 2021 consisted primarily of
$134.7 million of proceeds from sales of common shares under the Sale Agreement, as amended. Cash provided by financing activities in 2020 consisted
primarily of $86.3 million of proceeds from sales of common shares under the Sale Agreement, as amended.

RECENT ACCOUNTING PRONOUNCEMENTS

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board or other standard setting bodies that we adopt
as of the specified effective date. Unless otherwise discussed, we believe that the impact of recently issued standards that are not yet effective will not have
a material impact on our financial position or results of operations upon adoption.

Please refer to note 2 to our consolidated financial statements included in Part II, Item 8, “Financial Statements and Supplementary Data,” of this Annual
Report on Form 10-K for a description of recent accounting pronouncements applicable to our business. 

Item 7A. Quantitative and Qualitative Disclosures about Market Risk

Not applicable.

68

 
 
 
 
Item 8. Financial Statements and Supplementary Data

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Ernst & Young, LLP, Independent Registered Public Accounting Firm - PCAOB ID: 42
Consolidated Balance Sheets at December 31, 2021 and 2020
Consolidated Statements of Operations and Comprehensive Loss for the Years Ended December 31, 2021 and 2020
Consolidated Statements of Stockholders’ Equity for the Years Ended December 31, 2021 and 2020
Consolidated Statements of Cash Flows for the Years Ended December 31, 2021 and 2020
Notes to Consolidated Financial Statements

Page
70
72
73
74
75
76

69

 
Report of Independent Registered Public Accounting Firm

To the Shareholders and the Board of Directors of Arbutus Biopharma Corporation

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Arbutus Biopharma Corporation (the Company) as of December 31, 2021 and 2020, and
the related consolidated statements of operations and comprehensive loss, stockholders' equity, and cash flows for the years then ended, and the related
notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material
respects, the financial position of the Company at December 31, 2021 and 2020, and the results of its operations and its cash flows for the years then ended,
in conformity with U.S. generally accepted accounting principles.

Basis for Opinion

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

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

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

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or
required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2)
involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion
on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion
on the critical audit matter or on the accounts or disclosures to which it relates.

70

Description of the Matter

Valuation of contingent consideration liability
As discussed in Note 10 to the consolidated financial statements, the Company’s contingent consideration liability, which
consists of sales-based milestones and royalties, resulting from the acquisition of Enantigen in 2014, is remeasured to its
estimated fair value each reporting period. As of December 31, 2021, the contingent consideration liability was $5.3
million. Auditing the valuation of the contingent consideration liability was complex and highly judgmental due to the
significant estimation required in determining the fair value. In particular, the fair value estimate was sensitive to
significant assumptions such as the probability of successfully commercializing a treatment for the hepatitis B virus, the
timing and amount of future revenues related to commercial sales, and the discount rate. These assumptions are affected by
expectations about future industry, regulatory, market or economic conditions and are forward-looking and inherently
uncertain.

How We Addressed the Matter
in Our Audit

To test the estimated fair value of the contingent consideration liability, we performed audit procedures that included,
among others, assessing the terms of the arrangement, evaluating the methodology used, and testing the significant
assumptions discussed above used by the Company in its analysis. We also compared the significant assumptions to
current industry, market and economic trends to corroborate the Company’s estimates and performed sensitivity analyses
of significant assumptions to evaluate the changes in the contingent consideration liability that would result from changes
in the significant assumptions.

/s/ Ernst & Young LLP

We have served as the Company's auditor since 2019.

Philadelphia, Pennsylvania

March 3, 2022

71

ARBUTUS BIOPHARMA CORPORATION

Consolidated Balance Sheets

(Expressed in thousands of US Dollars, except share and per share amounts)

Assets
Current assets:

Cash and cash equivalents
Investments in marketable securities, current
Accounts receivable
Prepaid expenses and other current assets

Total current assets
Property and equipment, net of accumulated depreciation
Investments in marketable securities, non-current
Right of use asset
Other non-current assets

Total assets
Liabilities and stockholders' equity
Current liabilities:

Accounts payable and accrued liabilities
Lease liability, current

Total current liabilities
Liability related to sale of future royalties
Contingent consideration
Lease liability, non-current
Total liabilities
Stockholders' equity
Preferred shares
Authorized: unlimited number without par value
Issued and outstanding: 0 (December 31, 2020: 1,164,000)
Common shares

Authorized: unlimited number without par value
Issued and outstanding: 144,987,736 (December 31, 2020: 89,678,722)
Additional paid-in capital
Deficit
Accumulated other comprehensive loss
Total stockholders' equity

Total liabilities and stockholders' equity

December 31, 2021

December 31, 2020

$

$

$

$

109,282  $
46,035 
899 
4,445 
160,661 
5,983 
35,688 
2,092 
61 
204,485  $

10,838  $
383 
11,221 
16,296 
5,298 
2,231 
35,046 

52,251 
71,017 
1,312 
3,124 
127,704 
6,927 
— 
2,405 
44 
137,080 

9,151 
390 
9,541 
19,554 
3,426 
2,593 
35,114 

— 

149,408 

1,286,636 
65,485 
(1,134,347)
(48,335)
169,439 
204,485  $

985,939 
60,751 
(1,045,961)
(48,171)
101,966 
137,080 

See accompanying notes to the consolidated financial statements.

72

 
 
 
 
 
 
 
 
 
 
 
 
 
ARBUTUS BIOPHARMA CORPORATION

Consolidated Statements of Operations and Comprehensive Loss

(Expressed in thousands of US Dollars, except share and per share amounts)

Revenue

Collaborations and licenses
Non-cash royalty revenue

Total revenue
Operating expenses

Research and development
General and administrative
Change in fair value of contingent consideration
Site consolidation

Total operating expenses
Loss from operations
Other income (loss)
Interest income
Interest expense
Equity investment loss
Foreign exchange gain (loss)

Total other loss
Net loss
Items applicable to preferred shares

Dividend accretion of convertible preferred shares

Net loss attributable to common shares
Loss per share

Basic and diluted

Weighted average number of common shares

Basic and diluted

Comprehensive income (loss)

Unrealized (loss) gain on available-for-sale securities
Currency translation adjustments

Comprehensive loss

Year ended December 31,

2021

2020

$

$

$

$

$

$

$

4,880 
6,108 
10,988 

65,502 
17,136 
1,872 
— 
84,510 
(73,522)

127 
(2,857)
— 
5 
(2,725)
(76,247)

(12,139)
(88,386)

(0.83)

106,242,452 

(164)
— 
(76,411)

$

$

$

$

$

3,519 
3,395 
6,914 

49,338 
14,845 
473 
64 
64,720 
(57,806)

741 
(4,011)
(2,545)
(124)
(5,939)
(63,745)

(12,123)
(75,868)

(1.00)

75,835,378 

14 
44 
(63,687)

See accompanying notes to the consolidated financial statements.

73

 
 
 
 
 
 
 
 
 
 
 
 
ARBUTUS BIOPHARMA CORPORATION

Consolidated Statement of Stockholders’ Equity

(Expressed in thousands of US Dollars, except share and per share amounts)

Convertible Preferred Shares

Common Shares

Number of
shares
1,164,000 

Share
capital

$

137,285 

Number of
shares
64,780,314 

Share capital
898,535 
$

Additional
paid-in
capital

Deficit

$

55,246 

$

(970,093)

Accumulated other
comprehensive loss
(48,229)
$

Total
stockholders'
equity

$

72,744 

Balance at December 31, 2019
Accretion of accumulated dividends on
Preferred Shares
Stock-based compensation
Certain fair value adjustments to
liability stock option awards
Issuance of common shares pursuant to
the Open Market Sales Agreement
Issuance of common shares pursuant to
exercise of options
Unrealized gain on available-for-sale
securities
Currency translation adjustment
Net loss

Balance at December 31, 2020
Accretion of accumulated dividends on
Preferred Shares
Conversion of Preferred Shares into
Common Shares
Stock-based compensation
Certain fair value adjustments to
liability stock option awards
Issuance of common shares pursuant to
the Open Market Sales Agreement
Issuance of common shares pursuant to
exercise of ESPP options
Issuance of common shares pursuant to
exercise of options
Unrealized loss on available-for-sale
securities
Net loss

Balance at December 31, 2021

— 
— 

— 

— 

— 

— 
— 

12,123 
— 

— 

— 

— 

— 
— 

1,164,000 

$

149,408 

— 
— 

— 

— 
— 

— 

24,728,368 

170,040 

— 
— 
— 
89,678,722 

$

86,297 

1,107 

— 
— 
— 
985,939 

$

— 

12,139 

— 

— 

(1,164,000)
— 

(161,547)
— 

22,833,922 
— 

161,547 
— 

— 

— 

31,571,036 

134,665 

196,335 

707,721 

817 

3,668 

— 

— 

— 

— 

— 
— 

$

— 

— 

— 

— 

— 
— 

— 
6,145 

18 

— 

(658)

— 
— 
— 
60,751 

— 

— 
6,385 

263 

— 

(356)

(1,558)

(12,123)
— 

— 

— 

— 

— 
— 
(63,745)
(1,045,961)

$

$

(12,139)

— 
— 

— 

— 

— 

— 

— 
— 

— 

— 

— 

14 
44 
— 
(48,171)

$

— 

— 
— 

— 

— 

— 

— 

— 
6,145 

18 

86,297 

449 

14 
44 
(63,745)
101,966 

— 

— 
6,385 

263 

134,665 

461 

2,110 

(164)
(76,247)
169,439 

— 
144,987,736 

$

— 
1,286,636 

$

— 
65,485 

$

(76,247)
(1,134,347)

$

(164)
— 
(48,335)

$

See accompanying notes to the consolidated financial statements.

74

 
 
ARBUTUS BIOPHARMA CORPORATION

Consolidated Statements of Cash Flows

(Expressed in thousands of US Dollars, except share and per share amounts)

OPERATING ACTIVITIES

Net loss
Non-cash items:
Depreciation
Stock-based compensation expense
Unrealized foreign exchange gains
Change in fair value of contingent consideration
Net equity investment loss
Non-cash royalty revenue
Non-cash interest expense
Net accretion and amortization of investments in marketable securities

Net change in operating items:

Accounts receivable
Prepaid expenses and other assets
Accounts payable and accrued liabilities
Lease liabilities

Net cash used in operating activities
INVESTING ACTIVITIES

Purchase of investments in marketable securities
Disposition of investments in marketable securities
Investment in Genevant
Acquisition of property and equipment

Net cash used in investing activities
FINANCING ACTIVITIES

Issuance of common shares pursuant to exercise of options
Issuance of common shares pursuant to exercise of ESPP options
Issuance of common shares pursuant to the Open Market Sales Agreement

Net cash provided by financing activities
Effect of foreign exchange rate changes on cash and cash equivalents
Increase in cash and cash equivalents
Cash and cash equivalents, beginning of period
Cash and cash equivalents, end of period
Supplemental cash flow information
Preferred shares dividends accrued

Year ended December 31,

2021

2020

$

(76,247) $

(63,745)

1,753 
6,424 
(5)
1,872 
— 
(6,108)
2,850 
999 

413 
(1,025)
1,911 
(369)
(67,532)

(82,219)
70,350 
— 
(809)
(12,678)

2,110 
461 
134,665 
137,236 
5 
57,031  $
52,251  $
109,282  $

1,978 
6,161 
(56)
473 
2,545 
(3,395)
3,957 
210 

(108)
(752)
1,666 
(375)
(51,441)

(85,578)
73,398 
(2,500)
(229)
(14,909)

449 
— 
86,297 
86,746 
56 
20,452 
31,799 
52,251 

(12,139) $

(12,123)

$
$
$

$

 See accompanying notes to the consolidated financial statements.

75

 
 
 
 
 
 
 
 
 
 
ARBUTUS BIOPHARMA CORPORATION

Notes to Consolidated Financial Statements

(Tabular amounts in thousands of US Dollars, except share and per share amounts) 

1.    Organization

Description of the Business

Arbutus Biopharma Corporation (“Arbutus” or the “Company”) is a clinical-stage biopharmaceutical company leveraging its extensive virology expertise
to develop novel therapeutics that target specific viral diseases. The Company’s current focus areas include Hepatitis B virus (“HBV”), SARS-CoV-2 and
other coronaviruses. In HBV, the Company is developing an RNA interference (“RNAi”) therapeutic, oral capsid inhibitor, oral PD-L1 inhibitor, and oral
RNA destabilizer that it intends to combine to provide a functional cure for patients with chronic HBV infection (“cHBV”) by suppressing viral replication,
reducing  surface  antigen  and  reawakening  the  immune  system.  The  Company  believes  its  lead  compound,  AB-729,  is  the  only  RNAi  therapeutic  with
evidence of immune re-awakening, and is currently being evaluated in multiple phase 2 clinical trials. The Company has an ongoing drug discovery and
development  program  directed  to  identifying  novel,  orally  active  agents  for  treating  coronaviruses  (including  SARS-CoV-2).  The  Company  is  also
exploring oncology applications for its internal PD-L1 portfolio.

Liquidity

At December 31, 2021, the Company had an aggregate of $191.0 million in cash, cash equivalents and investments in marketable securities. In January
2022, the Company received a $40 million upfront payment and a $15 million equity investment from Qilu Pharmaceuticals Co., Ltd. (“Qilu”) as part of a
technology  transfer  and  exclusive  licensing  agreement  to  develop  and  commercialize  AB-729  in  China.  The  Company  had  no  outstanding  debt  as  of
December 31, 2021. The Company believes it has sufficient cash resources to fund its operations for at least the next 12 months.

The success of the Company is dependent on obtaining the necessary regulatory approvals to bring its products to market and achieve profitable operations.
The Company’s research and development activities and the commercialization of its products are dependent on its ability to successfully complete these
activities and to obtain adequate financing through a combination of financing activities and operations. It is not possible to predict either the outcome of
the Company’s existing or future research and development programs or the Company’s ability to continue to fund these programs in the future.

COVID-19 Impact

The impact of the COVID-19 pandemic has been, and will likely continue to be, extensive in many aspects of society. The pandemic has resulted in and
will likely continue to result in significant disruptions to businesses. Measures implemented around the world in attempts to slow the spread of COVID-19
have had, and will likely continue to have, a major impact on clinical development, at least in the near-term, including shortages and delays in the supply
chain and prohibitions in certain countries on enrolling patients in new clinical trials. While the Company has been able to progress with its clinical and
pre-clinical activities to date, it is not possible to predict if the COVID-19 pandemic will materially impact the Company’s plans and timelines in the future.

76

 
2.    Significant accounting policies 

Basis of presentation and principles of consolidation

These consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and include the
accounts of Arbutus Biopharma Corporation and its two wholly-owned subsidiaries, Arbutus Biopharma, Inc. and Arbutus Biopharma U.S. Holdings, Inc.
All  intercompany  balances  and  transactions  have  been  eliminated.  Certain  prior  year  amounts  have  been  reclassified  to  conform  to  the  current  year
presentation, such as the reclassification of depreciation expense to research and development and general and administrative expenses. In February 2021,
Arbutus  Biopharma  US  Holdings,  Inc.  merged  into  Arbutus  Biopharma,  Inc.  with  Arbutus  Biopharma,  Inc.  continuing  its  legal  existence  and  Arbutus
Biopharma US Holdings, Inc. ceasing to exist.

Use of estimates

The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions about future
events that affect the reported amounts of assets, liabilities, revenue, expenses and contingent liabilities as of the end or during the reporting period. Actual
results  could  significantly  differ  from  those  estimates.  Significant  estimates  in  the  accompanying  consolidated  financial  statements  impact  contingent
consideration, income tax recoveries, stock-based compensation, clinical trial accruals and the sale of future royalties liability.

Cash and cash equivalents

Cash and cash equivalents are all highly liquid instruments with an original maturity of three months or less when purchased. Cash equivalents are recorded
at cost plus accrued interest. The carrying value of these cash equivalents approximates their fair value.

Investments in marketable securities

The Company’s short-term investments consist of marketable securities that have original maturities exceeding three months and remaining maturities of
less than one year. The Company classifies investments with remaining maturities of one year or longer as non-current. These investments are accounted
for  as  available-for-sale  securities  and  are  reported  at  fair  value,  with  unrealized  gains  and  losses  reported  in  other  comprehensive  loss,  until  their
disposition.  Realized  gains  and  losses  from  the  sale  of  marketable  securities,  if  any,  are  calculated  using  the  specific-identification  method,  and  are
recorded as a component of other income or loss. The Company reviews its available-for-sale securities at each period end to determine if they remain
available-for-sale based on the Company’s current intent and ability to sell the security if it is required to do so. Declines in value judged to be other-than-
temporary are included in interest income or expense in the Company’s statements of operations and comprehensive loss. As of December 31, 2021, the
recorded value of the Company’s investments in marketable securities was deemed to be recoverable in all respects.

All investments are governed by the Company’s Investment Policy approved by the Company’s board of directors.

Foreign currency translation and functional currency conversion

The Company’s functional currency is the United States dollar. Monetary assets and liabilities denominated in foreign currencies are translated into United
States dollars using exchange rates in effect at the balance sheet date. Opening balances related to non-monetary assets and liabilities are based on prior
period translated amounts, and non-monetary assets and non-monetary liabilities are translated at the approximate exchange rate prevailing at the date of
the transaction. Revenue and expense transactions are translated at the approximate exchange rate in effect at the time of the transaction. Foreign exchange
gains and losses are included in the statement of operations and comprehensive loss as foreign exchange gains.

77

Investment in Genevant

As the result of a recapitalization of Genevant in July 2020, Arbutus’ ownership interest in Genevant decreased to approximately 16%. Due to Arbutus’
loss of significant influence with respect to Genevant as a result of the recapitalization, Arbutus discontinued the use of the equity method of accounting for
its interest in Genevant. Ownership interests that do not confer the ability to exercise significant influence are accounted for at fair value, except when the
investment  does  not  have  a  readily-determinable  fair  value.  In  that  case,  the  investment  is  carried  at  cost,  less  any  impairment.  The  carrying  value  is
subsequently adjusted to fair value based on any observable price changes. Following the recapitalization, Arbutus accounts for its interest in Genevant as
equity  securities  without  readily  determinable  fair  values.  Accordingly,  an  estimate  of  the  fair  value  of  the  securities  is  based  on  the  original  cost  less
previously recognized equity method losses, less impairments, plus or minus changes resulting from observable price changes in orderly transactions for
identical or similar Genevant securities. As of December 31, 2021, the carrying value of Arbutus’ investment in Genevant was zero and Arbutus owned
approximately 16% of the common equity of Genevant.

See note 5 for more information.

Property and equipment

Property and equipment is recorded at cost less impairment losses and accumulated depreciation. The Company records depreciation using the straight-line
method over the estimated useful lives of the capital assets as follows:

Laboratory equipment
Computer and office equipment
Furniture and fixtures

Useful Life (Years)
5
to
5

5

2

Leasehold  improvements  are  depreciated  over  their  estimated  useful  lives  but  in  no  case  longer  than  the  lease  term,  except  where  lease  renewal  is
reasonably assured.

Property and equipment is reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not
be recoverable. If such a review should indicate that the carrying amount of long-lived assets is not recoverable, then such assets are written down to their
fair values.

Revenue from collaborations and licenses

The Company generates revenue primarily through collaboration agreements and license agreements. Such agreements may require the Company to deliver
various  rights  and/or  services,  including  intellectual  property  rights  or  licenses  and  research,  development  and  manufacturing  services.  Under  such
agreements, the Company is generally eligible to receive non-refundable upfront payments, funding for research, development and manufacturing services,
milestone payments, and royalties.

The Company’s collaboration agreements fall under the scope of ASC Topic 808, Collaborative Arrangements, (“ASC 808”) when both parties are active
participants  in  the  arrangement  and  are  exposed  to  significant  risks  and  rewards.  For  certain  arrangements  under  the  scope  of  ASC  808,  the  Company
analogizes to ASC 606 for some aspects, including for the delivery of a good or service (i.e., a unit of account).

ASC 606, Revenue From Contracts with Customers (“ASC 606”) requires an entity to recognize the amount of revenue to which it expects to be entitled
for the transfer of promised goods or services to customers under a five-step model: (i) identify 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 a performance obligation is satisfied.

In contracts where the Company has more than one performance obligation to provide its customer with goods or services, each performance obligation is
evaluated to determine whether it is distinct based on whether (i) the customer can benefit from the

78

 
 
good or service either on its own or together with other resources that are readily available and (ii) the good or service is separately identifiable from other
promises  in  the  contract.  The  consideration  under  the  contract  is  then  allocated  between  the  distinct  performance  obligations  based  on  their  respective
relative stand-alone selling prices. The estimated stand-alone selling price of each deliverable reflects the Company’s best estimate of what the selling price
would be if the deliverable was regularly sold on a stand-alone basis and is determined by reference to market rates for the good or service when sold to
others or by using an adjusted market assessment approach if the selling price on a stand-alone basis is not available.

The consideration allocated to each distinct performance obligation is recognized as revenue when control is transferred to the customer for the related
goods  or  services.  Consideration  associated  with  at-risk  substantive  performance  milestones,  including  sales-based  milestones,  is  recognized  as  revenue
when  it  is  probable  that  a  significant  reversal  of  the  cumulative  revenue  recognized  will  not  occur.  Sales-based  royalties  received  in  connection  with
licenses of intellectual property are subject to a specific exception in the revenue standards, whereby the consideration is not included in the transaction
price and recognized in revenue until the customer’s subsequent sales or usages occur.

Leases

The  Company  accounts  for  its  leases  under  ASC  842,  Leases,  which  generally  requires  the  recognition  of  operating  and  financing  lease  liabilities  with
corresponding right-of-use assets on the balance sheet. See note 6 for more information.

Research and development costs

Research and development costs include compensation and benefits for research and development employees, an allocation of overhead expenses and costs
associated with materials and supplies used in clinical trials and research and development, outside contracted services including clinical and pre-clinical
study  costs,  legal,  regulatory  compliance  and  fees  paid  to  consultants  or  outside  parties  for  research  and  development  activities  performed  on  the
Company’s behalf. Such costs are charged to expense in the period in which they are incurred.

Research and development costs that are paid in advance of performance or receipt are recorded as prepaid expense and are amortized over the period that
the services are performed.

Net loss attributable to common shareholders per share

Net loss attributable to common shareholders per share is calculated based on the weighted average number of common shares outstanding. Diluted net loss
attributable  to  common  shareholders  per  share  does  not  differ  from  basic  net  loss  attributable  to  common  shareholders  per  share  for  the  years  ended
December  31,  2021  and  2020,  since  the  effect  of  including  potential  common  shares  would  be  anti-dilutive.  For  the  year  ended  December  31,  2021,
potential common shares of 11.4 million pertaining to outstanding stock options were excluded from the calculation of net loss attributable to common
shareholders, per share. A total of approximately 31.8 million outstanding stock options and if-converted Series A participating convertible preferred shares
(“Preferred Shares”) were excluded from the calculation for the year ended December 31, 2020.

On  October  18,  2021,  the  Company’s  outstanding  Preferred  Shares  were  converted  into  22,833,922  common  shares.  Prior  to  that  date,  the  Company
followed the two-class method when computing net loss attributable to common shareholders per share as the Preferred Shares, as further described in note
12, met the definition of participating securities. The Company’s Preferred Shares entitled the holders to participate in dividends but did not require the
holders  to  participate  in  losses  of  the  Company.  Accordingly,  net  losses  attributable  to  holders  of  the  Company’s  common  shares  were  not  allocated  to
holders of the Preferred Shares.

79

  
 
The following table sets out the computation of basic and diluted net loss attributable to common shareholders per share:

Numerator:
Allocation of distributable earnings
Allocation of undistributable loss
Allocation of net loss attributed to common shareholders
Denominator:
Weighted average number of common shares - basic and diluted
Basic and diluted net loss attributable to common shareholders per share

See note 12 and note 13 for more information about the Company’s common shares.

Deferred income taxes

For the year ended December 31,

2021

2020

(in thousands, except share and per share amounts)

$

$

$

—  $

(88,386)
(88,386) $

106,242,452 

(0.83) $

— 
(75,868)
(75,868)

75,835,378 
(1.00)

Income  taxes  are  accounted  for  using  the  asset  and  liability  method  of  accounting.  Deferred  income  taxes  are  recognized  for  the  future  income  tax
consequences  attributable  to  differences  between  the  carrying  values  of  assets  and  liabilities  and  their  respective  income  tax  bases  and  for  loss  carry-
forwards.  Deferred  income  tax  assets  and  liabilities  are  measured  using  enacted  income  tax  rates  expected  to  apply  to  taxable  income  in  the  periods  in
which temporary differences are expected to be recovered or settled. The effect on deferred income tax assets and liabilities of a change in tax laws or rates
is included in earnings in the period that includes the enactment date. When realization of deferred income tax assets does not meet the more-likely-than-
not criterion for recognition, a valuation allowance is provided.

Stock-based compensation

The  Company  measures  and  recognizes  compensation  expense  for  all  share-based  compensation  arrangements  based  on  estimated  fair  values.  The
Company uses the Black-Scholes option valuation model to estimate the fair value of stock options at the date of grant. The Black-Scholes option valuation
model requires the input of subjective assumptions to calculate the value of stock options. For those assumptions, the Company uses historical data and
other information to estimate the expected price volatility and risk free interest rate for all awards. The expected life of stock options granted are estimated
to be five years for employees and six years for directors and executives, based on the Company’s historical experience. Assumptions on the dividend yield
are based on the fact that the Company has never paid cash dividends and has no present intention to pay cash dividends. Expense is recognized over the
vesting period for all awards and commences at the grant date for time-based awards and upon the Company’s determination that the achievement of such
performance conditions is probable for performance-based awards. Forfeitures are recognized as they occur.

For the Company’s Employee Stock Purchase Plan, the fair value of the right to acquire stock at a discounted price under the plan is calculated using the
Black-Scholes valuation model. Expense is recognized over the period the employee contributes to the plan through payroll deductions.

The  Company  accounts  for  liability-classified  stock  option  awards  (“liability  options”)  under  ASC  718  -  Compensation  -  Stock  Compensation  (“ASC
718”),  under  which  awards  of  options  that  provide  for  an  exercise  price  that  is  not  denominated  in:  (a)  the  currency  of  a  market  in  which  a  substantial
portion of the Company’s equity securities trades, (b) the currency in which the employee’s pay is denominated, or (c) the Company’s functional currency,
are required to be classified as liabilities. As of January 1, 2016, the Company changed its functional currency to US dollars, which resulted in certain stock
option awards with exercise prices denominated in Canadian dollars having an exercise price that is not denominated in the Company’s functional currency.
As  such,  the  historic  equity  classification  of  these  stock  option  awards  changed  to  liability  classification  effective  January  1,  2016.  The  change  in
classification resulted in reclassification of these awards from additional paid-in capital to a liability.

80

 
 
 
 
 
 
Liability options are re-measured to their fair values at each reporting date with changes in the fair value recognized in share-based compensation expense
or additional paid-in capital until settlement or cancellation. Under ASC 718, when an award is reclassified from equity to liability, if at the reclassification
date the original vesting conditions are expected to be satisfied, then the minimum amount of compensation cost to be recognized is based on the grant date
fair value of the original award. Fair value changes below this minimum amount are recorded in additional paid-in capital.

Preferred Shares

The Company accounted for its Preferred Shares under ASC 480 – Distinguishing Liabilities from Equity (“ASC 480”), which provides guidance for equity
instruments with conversion features. The Company classified the Preferred Shares in its consolidated balance sheet wholly as equity, with no bifurcation
of conversion feature from the host contract, given that the Preferred Shares could not be cash-settled and the redemption features, which included a fixed
conversion  ratio  with  predetermined  timing  and  proceeds,  were  within  the  Company’s  control.  The  Company  accrued  for  the  8.75%  per  annum
compounding accrual at each reporting period-end date as an increase to share capital, and an increase to deficit. The Company’s Preferred Shares were
converted into 22,833,922 common shares on October 18, 2021.

Segment information

The Company operates in a single reporting segment. Substantially all of the Company’s revenues to date were earned from customers or collaborators
based in the United States. Substantially all of the Company’s premises, property and equipment are located in the United States.

Comprehensive loss

Comprehensive loss is comprised of net loss, the impact of foreign currency translation adjustments and adjustments for the change in unrealized gains and
losses  on  investments  in  available-for-sale  marketable  securities.  The  Company  displays  comprehensive  loss  and  its  components  in  the  consolidated
statements of operations and comprehensive loss, net of tax effects if any.

Concentrations of Credit Risk

Financial  instruments  which  potentially  subject  the  Company  to  credit  risk  consist  primarily  of  cash,  cash  equivalents  and  marketable  securities.  The
Company holds these investments in highly rated financial institutions, and, by policy, 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.

Recent accounting pronouncements

In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments -
Credit Losses: Measurement of Credit Losses on Financial Instruments (ASC 326). The guidance is effective for the Company beginning January 1, 2023
and  it  changes  how  entities  account  for  credit  losses  on  financial  assets  and  other  instruments  that  are  not  measured  at  fair  value  through  net  income,
including available-for-sale debt securities. The Company is currently evaluating the impact of the new standard on its consolidated financial statements.

3.    Fair value measurements 

The Company measures certain financial instruments and other items at fair value.

To determine the fair value, the Company uses the fair value hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs
and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs market
participants would use to value an asset or liability and are developed based on market data obtained from independent sources. Unobservable inputs are
inputs based on assumptions about the

81

factors market participants would use to value an asset or liability. The three levels of inputs that may be used to measure fair value are as follows:

•

•

•

Level 1 inputs are quoted market prices for identical instruments available in active markets.

Level  2  inputs  are  inputs  other  than  quoted  prices  included  within  Level  1  that  are  observable  for  the  asset  or  liability  either  directly  or
indirectly. If the asset or liability has a contractual term, the input must be observable for substantially the full term. An example includes
quoted market prices for similar assets or liabilities in active markets.

Level  3  inputs  are  unobservable  inputs  for  the  asset  or  liability  and  will  reflect  management’s  assumptions  about  market  assumptions  that
would be used to price the asset or liability.

Assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurements. Changes in the observability of
valuation inputs may result in a reclassification of levels for certain securities within the fair value hierarchy.

The carrying values of cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their fair values due to the
immediate or short-term maturity of these financial instruments.

To determine the fair value of the contingent consideration (note 10), the Company uses a probability weighted assessment of the likelihood the milestones
would  be  met  and  the  estimated  timing  of  such  payments,  and  then  the  potential  contingent  payments  were  discounted  to  their  present  value  using  a
probability adjusted discount rate that reflects the early stage nature of the development program, time to complete the program development, and overall
biotech indices. The Company determined the fair value of the contingent consideration was $5.3 million as of December 31, 2021 and the increase of $1.9
million has been recorded within operating expenses in the statement of operations and comprehensive loss for the year ended December 31, 2021. The
assumptions  used  in  the  discounted  cash  flow  model  are  level  3  inputs  as  defined  above.  The  Company  assessed  the  sensitivity  of  the  fair  value
measurement to changes in these unobservable inputs, and determined that changes within a reasonable range would not result in a materially different
assessment of fair value.  

The following tables present information about the Company’s assets and liabilities that are measured at fair value on a recurring basis, and indicates the
fair value hierarchy of the valuation techniques used to determine such fair value:

As of December 31, 2021
Assets
Cash and cash equivalents
Investments in marketable securities

Total
Liabilities
Liability-classified options
Contingent consideration

Total

Level 1

Level 2

Level 3

Total

$

$

$

$

109,282  $
— 
109,282  $

—  $
— 
—  $

(in thousands)

—  $

81,723 
81,723  $

—  $
— 
—  $

—  $
— 
—  $

26  $

5,298 
5,324  $

109,282 
81,723 
191,005 

26 
5,298 
5,324 

82

 
 
As of December 31, 2020
Assets
Cash and cash equivalents
Investments in marketable securities

Total
Liabilities
Liability-classified options
Contingent consideration

Total

Level 1

Level 2

Level 3

Total

$

$

$

$

52,251  $
— 
52,251  $

—  $
— 
—  $

(in thousands)

—  $

71,017 
71,017  $

—  $
— 
—  $

—  $
— 
—  $

250  $

3,426 
3,676  $

52,251 
71,017 
123,268 

250 
3,426 
3,676 

The following table presents the changes in fair value of the Company’s liability-classified stock option awards:

Year ended December 31, 2021
Year ended December 31, 2020

$
$

250  $
253  $

(in thousands)
(96) $
—  $

(128) $
(3) $

26 
250 

Liability at beginning of
the period

Fair value of liability-classified
options exercised in the period

Decrease in fair value of
liability

Liability at end of the
period

The following table presents the changes in fair value of the Company’s contingent consideration:

Year ended December 31, 2021
Year ended December 31, 2020

$
$

3,426  $
2,953  $

1,872  $
473  $

5,298 
3,426 

Liability at beginning of the period

Increase in fair value of liability
(in thousands)

Liability at end of the period

83

  
 
4.    Investments in marketable securities 

Investments in marketable securities consisted of the following:

As of December 31, 2021
Cash equivalents

Money market fund
Total

Investments in marketable securities
US government agency bonds
US government bonds
Total

(1) 
  Gross unrealized gain (loss) is pre-tax.

As of December 31, 2020
Cash equivalents

Money market fund
US treasury bills

Total

Investments in marketable securities
Us government agency bonds
US treasury bills
US government bonds
Total

$
$

$

$

$

$

$

$

Amortized Cost

Gross Unrealized Gain

(1)

Gross Unrealized Loss

(1)

Fair Value

62,836  $
62,836  $

21,198  $
60,675 
81,873  $

(in thousands)

—  $
—  $

—  $
— 
—  $

—  $
—  $

(39) $
(111)
(150) $

Amortized Cost

Gross Unrealized Gain

(1)

Gross Unrealized Loss

(1)

Fair Value

13,703  $
2,000 
15,703  $

11,550  $
21,990 
37,463 
71,003  $

(in thousands)

—  $
— 
—  $

7  $
2 
6 
15  $

—  $
— 
—  $

—  $
— 
(1)
(1) $

62,836 
62,836 

21,159 
60,564 
81,723 

13,703 
2,000 
15,703 

11,557 
21,992 
37,468 
71,017 

(1) 

Gross unrealized gain (loss) is pre-tax.

There were no realized gains or losses for the year ended December 31, 2021 or 2020.

5.    Investment in Genevant

In April 2018, the Company entered into an agreement with Roivant Sciences Ltd. (“Roivant”), its largest shareholder, to launch Genevant Sciences Ltd.
(“Genevant”), a company focused on a broad range of RNA-based therapeutics enabled by the Company’s LNP and ligand conjugate delivery technologies.
The Company licensed rights to its LNP and ligand conjugate delivery platforms to Genevant for RNA-based applications outside of HBV, except to the
extent certain rights had already been licensed to other third parties (the “Genevant License”). The Company retained all rights to its LNP and conjugate
delivery platforms for HBV.

84

 
Under the Genevant License, as amended, if a third party sublicensee of intellectual property licensed by Genevant from the Company commercializes a
sublicensed  product,  the  Company  becomes  entitled  to  receive  a  specified  percentage  of  certain  revenue  that  may  be  received  by  Genevant  for  such
sublicense,  including  royalties,  commercial  milestones  and  other  sales-related  revenue,  or,  if  less,  tiered  low  single-digit  royalties  on  net  sales  of  the
sublicensed product. The specified percentage is 20% in the case of a mere sublicense (i.e., naked sublicense) by Genevant without additional contribution
and 14% in the case of a bona fide collaboration with Genevant.

Additionally,  if  Genevant  receives  proceeds  from  an  action  for  infringement  by  any  third  parties  of  the  Company’s  intellectual  property  licensed  to
Genevant, the Company would be entitled to receive, after deduction of litigation costs, 20% of the proceeds received by Genevant or, if less, tiered low
single-digit royalties on net sales of the infringing product (inclusive of the proceeds from litigation or settlement, which would be treated as net sales).

On July 31, 2020, Roivant recapitalized Genevant through an equity investment and conversion of previously issued convertible debt securities held by
Roivant. The Company participated in the recapitalization of Genevant with an investment of $2.5 million. The Company determined that this $2.5 million
additional investment in Genevant represented the funding of prior losses and accordingly, the Company recorded the amount as an equity investment loss
on  the  Condensed  Consolidated  Statements  of  Operations  and  Comprehensive  Loss  in  2020.  Following  the  recapitalization,  the  Company  owned
approximately  16%  of  the  common  equity  of  Genevant.  In  connection  with  the  recapitalization,  Genevant,  the  Company  and  Roivant  entered  into  an
Amended and Restated Shareholders Agreement that provides Roivant with substantial control of Genevant. The Company has a non-voting observer seat
on  Genevant’s  Board  of  Directors.  Due  to  the  Company’s  loss  of  significant  influence  with  respect  to  Genevant  as  a  result  of  the  recapitalization,  the
Company discontinued the use of the equity method of accounting for its interest in Genevant. Following the recapitalization, the Company accounts for its
interest in Genevant as equity securities without readily determinable fair values. Accordingly, an estimate of the fair value of the securities is based on the
original cost less previously recognized equity method losses, less impairments, plus or minus changes resulting from observable price changes in orderly
transactions  for  identical  or  a  similar  Genevant  securities.  The  Company’s  entitlement  to  receive  future  royalties  or  sublicensing  revenue  under  the
Genevant License was not impacted by the recapitalization.

As  of  December  31,  2021,  the  carrying  value  of  the  Company’s  investment  in  Genevant  was  zero  and  the  Company  owned  approximately  16%  of  the
common equity of Genevant.

6.    Leases

The  Company  has  two  operating  leases  for  office  and  laboratory  space.  The  Company’s  corporate  headquarters  is  located  at  701  Veterans  Circle,
Warminster, Pennsylvania. The lease expires on April 30, 2027, and the Company has the option of extending the lease for two further five-year terms. The
Company  also  leases  office  space  located  at  626  Jacksonville  Rd,  Warminster,  Pennsylvania  under  a  lease  that  expires  on  December  31,  2022,  and  the
Company has an option to extend the lease term to April 30, 2027.

The Company accounts for its leases under ASC 842, Leases. Leases with an initial term of 12 months or less are not recorded on the balance sheet. The
Company determines if an arrangement is a lease at inception. Right-of-use assets represent the Company’s right to use an underlying asset for the lease
term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Operating lease right-of-use assets and lease
liabilities are recognized based on the present value of lease payments over the lease term. The leases do not provide an implicit rate so in determining the
present value of lease payments, the Company utilized its incremental borrowing rate for the applicable lease, which was 9.0% for the 701 Veterans Circle
lease and 7.6% for the 626 Jacksonville Rd. lease. The Company recognizes lease expense on a straight-line basis over the remaining lease term.
During each of the years ended December 31, 2021 and 2020, the Company incurred total operating lease expenses of $0.7 million, which included lease
expenses associated with fixed lease payments of $0.6 million, and variable payments associated with common area maintenance and similar expenses of
$0.1 million.

85

Weighted average remaining lease term and discount rate were as follows:

Weighted-average remaining lease term (years)
Weighted average discount rate

The Company did not include options to extend its lease terms as part of its ROU asset and lease liabilities.

Supplemental cash flow information related to the Company’s operating leases was as follows:

As of December 31, 2021
5.2
9.0%

Cash paid for amounts included in the measurement of lease liabilities

$

2021

2020

(in thousands)
650  $

657 

Future minimum lease payments under operating leases that have remaining terms as of December 31, 2021 are as follows:

2022
2023
2024
2025
2026
Thereafter

Total lease payments

Less: interest

Present value of lease payments

7.    Property and equipment

The Company’s property and equipment balances as of the years ended December 31, 2021 and 2020 are as follows:

As of December 31, 2021
(in thousands)

641 
598 
616 
635 
654 
134 
3,278 
(664)
2,614 

$

$

$

December 31, 2021
Lab equipment
Leasehold improvements
Computer hardware and software

December 31, 2020
Lab equipment
Leasehold improvements
Computer hardware and software

Cost

Cost

Accumulated
depreciation
(in thousands)

Net book value

6,408  $
8,563 
386 
15,357  $

(5,178) $
(3,883)
(313)
(9,374) $

1,230 
4,680 
73 
5,983 

Accumulated
depreciation
(in thousands)

Net book value

5,669  $
8,555 
324 
14,548  $

(4,369) $
(3,017)
(235)
(7,621) $

1,300 
5,538 
89 
6,927 

$

$

$

$

86

 
 
Depreciation expense for the years ended December 31, 2021 and 2020 was $1.8 million and $2.0 million , respectively.

8.    Accounts payable and accrued liabilities

Accounts payable and accrued liabilities are comprised of the following:

Trade accounts payable
Payroll accruals
Research and development accruals
Professional fee accruals
Liability options
Other accrued liabilities

Total

9.    Sale of future royalties

December 31, 2021

December 31, 2020

(in thousands)

$

$

3,174  $
4,279 
2,371 
983 
26 
5 
10,838  $

2,994 
3,566 
1,653 
679 
250 
9 
9,151 

On July 2, 2019, the Company entered into a Purchase and Sale Agreement (the “Agreement”) with the Ontario Municipal Employees Retirement System
(“OMERS”), pursuant to which the Company sold to OMERS part of its royalty interest on future global net sales of ONPATTRO, an RNA interference
therapeutic currently being sold by Alnylam.

ONPATTRO utilizes Arbutus’s LNP technology, which was licensed to Alnylam pursuant to the Cross-License Agreement, dated November 12, 2012, by
and  between  the  Company  and  Alnylam  (the  “LNP  License  Agreement”).  Under  the  terms  of  the  LNP  License  Agreement,  the  Company  is  entitled  to
tiered royalty payments on global net sales of ONPATTRO ranging from 1.00% to 2.33% after offsets, with the highest tier applicable to annual net sales
above  $500  million.  This  royalty  interest  was  sold  to  OMERS,  effective  as  of  January  1,  2019,  for  $20  million  in  gross  proceeds  before  advisory  fees.
OMERS will retain this entitlement until it has received $30 million in royalties, at which point 100% of such royalty interest on future global net sales of
ONPATTRO  will  revert  to  the  Company.  OMERS  has  assumed  the  risk  of  collecting  up  to  $30  million  of  future  royalty  payments  from  Alnylam  and
Arbutus is not obligated to reimburse OMERS if they fail to collect any such future royalties. From the inception of the royalty sale through December 31,
2021, an aggregate of $11.2 million of royalties have been earned by OMERS.

The $30 million in royalties to be paid to OMERS is accounted for as a liability, with the difference between the liability and the gross proceeds received
accounted for as a discount. The discount, as well as $1.5 million of transaction costs, will be amortized as interest expense based on the projected balance
of the liability as of the beginning of each period. Management estimated an effective annual interest rate of approximately 12%. Over the course of the
Agreement, the actual interest rate will be affected by the amount and timing of royalty revenue recognized and changes in the timing of forecasted royalty
revenue. On a quarterly basis, the Company will reassess the expected timing of the royalty revenue, recalculate the amortization and effective interest rate
and adjust the accounting prospectively as needed.

The  Company  recognizes  non-cash  royalty  revenue  related  to  the  sales  of  ONPATTRO  during  the  term  of  the  Agreement.  As  royalties  are  remitted  to
OMERS from Alnylam, the balance of the recognized liability is effectively repaid over the life of the Agreement. From the inception of the royalty sale
through December 31, 2021, the Company has recorded an aggregate of $11.2 million of non-cash royalty revenue for royalties earned by OMERS. There
are a number of factors that could materially affect the amount and timing of royalty payments from Alnylam, none of which are within the Company’s
control.

During the year ended December 31, 2021, the Company recognized non-cash royalty revenue of $6.1 million and $2.9 million of related non-cash interest
expense.  During  the  year  ended  December  31,  2020,  the  Company  recognized  non-cash  royalty  revenue  of  $3.4  million  and  related  non-cash  interest
expense of $4.0 million.

87

 
 
 
The table below shows the activity related to the net liability for the years ended December 31, 2021 and December 31, 2020:

Net liability related to sale of future royalties - beginning balance
Non-cash royalty revenue
Non-cash interest expense
Net liability related to sale of future royalties - ending balance

Twelve Months Ended December 31,

2021

2020

(in thousands)

19,554  $
(6,108)
2,850 
16,296  $

18,992 
(3,395)
3,957 
19,554 

$

$

In addition to the royalty from the Alnylam LNP License Agreement, the Company is also receiving a second, lower royalty interest on global net sales of
ONPATTRO  originating  from  a  settlement  agreement  and  subsequent  license  agreement  with  Acuitas  Therapeutics,  Inc.  (“Acuitas”).  The  royalty  from
Acuitas has been retained by the Company and was not part of the royalty sale to OMERS.

10.    Contingencies and commitments

Product development partnership with the Canadian Government

The Company entered into a Technology Partnerships Canada (“TPC”) agreement with the Canadian Federal Government on November 12, 1999.  Under
this agreement, TPC agreed to fund 27% of the costs incurred by the Company, prior to March 31, 2004, in the development of certain oligonucleotide
product candidates up to a maximum contribution from TPC of $7.2 million (C$9.3 million).  The Company received a cumulative contribution of $2.7
million  (C$3.7  million).    In  return  for  the  funding  provided  by  TPC,  the  Company  agreed  to  pay  royalties  on  the  share  of  future  licensing  and  product
revenue,  if  any,  that  is  received  by  the  Company  on  certain  non-RNAi  oligonucleotide  product  candidates  covered  by  the  funding  under  the
agreement.  These royalties are payable until a certain cumulative payment amount is achieved or until a pre-specified date.  In addition, until a cumulative
amount equal to the funding actually received under the agreement has been paid to TPC, the Company agreed to pay 2.5% royalties on any royalties the
Company  receives  for  Marqibo,  a  chemotherapy  product  sold  by  Acrotech  Biopharma  LLC  (“Acrotech”).  For  the  years  ended  December  31,  2021  and
2020, the Company earned royalties on Marqibo sales in the amount of $0.2 million in each period. The resulting royalties payable by the Company to TPC
were not material in either period. The cumulative amount paid or accrued up to December 31, 2021 was less than $0.1 million, resulting in the contingent
amount due to TPC being $2.7 million (C$3.7 million).

Arbitration with the University of British Columbia

Certain early work on lipid nanoparticle delivery systems and related inventions was undertaken at the University of British Columbia (“UBC”), as well as
by  the  Company  that  was  subsequently  assigned  to  UBC.  These  inventions  are  licensed  to  the  Company  by  UBC  under  a  license  agreement,  initially
entered  into  in  1998  and  as  amended  in  2001,  2006  and  2007.  The  Company  has  granted  sublicenses  under  the  UBC  license  to  certain  third  parties,
including Alnylam. In November 2014, UBC filed a demand for arbitration against the Company which alleged entitlement to unpaid royalties. In August
2019, the arbitrator issued its decision for the second phase of the arbitration, awarding UBC $5.9 million, which included interest of approximately $2.6
million. The Company paid the $5.9 million award to UBC in September 2019 and paid an additional $0.2 million for costs and attorneys’ fees in March
2021, and this matter is now fully resolved.

On December 18, 2020, UBC delivered to the Company a notice of arbitration alleging that under the cross license between UBC and Arbutus, it is due
royalties of $2.0 million plus interest arising from the Company’s sale to OMERS of part of its royalty interest on future global net sales of ONPATTRO,
currently being sold by Alnylam. Oral hearings for this matter are currently scheduled to begin on April 25, 2022. The Company does not believe that any
royalties are due to UBC and the Company intends to vigorously contest UBC’s allegation.

88

Stock Purchase Agreement with Enantigen

In  October  2014,  Arbutus  Inc.,  the  Company’s  wholly-owned  subsidiary,  acquired  all  of  the  outstanding  shares  of  Enantigen  Therapeutics,  Inc.
(“Enantigen”) pursuant to a stock purchase agreement. The amount paid to Enantigen’s selling shareholders could be up to an additional $102.5 million in
sales performance milestones in connection with the sale of the first commercialized product by Arbutus for the treatment of HBV, regardless of whether
such product is based upon assets acquired under this agreement, and a low single-digit royalty on net sales of such first commercialized HBV product, up
to a maximum royalty payment of $1.0 million that, if paid, would be offset against Arbutus’ milestone payment obligations. Certain other development
milestones related to the acquisition were tied to programs which are no longer under development by Arbutus, and therefore the contingency related to
those development milestones is zero.

The  contingent  consideration  is  a  financial  liability  and  is  measured  at  its  fair  value  at  each  reporting  period,  with  any  changes  in  fair  value  from  the
previous reporting period recorded in the statement of operations and comprehensive loss (note 3).

The fair value of the contingent consideration was $5.3 million as of December 31, 2021.

11.    Collaborations and royalty entitlements

Collaborations

Qilu Pharmaceuticals Co, Ltd.

In December 2021, the Company entered into a technology transfer and exclusive licensing agreement (the “License Agreement”) with Qilu, pursuant to
which  the  Company  granted  Qilu  an  exclusive  (except  as  to  certain  retained  rights),  sublicensable,  royalty-bearing  license,  under  certain  intellectual
property  owned  by  the  Company,  to  develop,  manufacture  and  commercialize  AB-729,  including  pharmaceutical  products  that  include  AB-729,  for  the
treatment or prevention of hepatitis B in China, Hong Kong, Macau and Taiwan (the “Territory”).

In partial consideration for the rights granted by the Company, Qilu paid the Company a one-time upfront cash payment of $40.0 million on January 5,
2022 and agreed to pay the Company milestone payments totaling up to $245 million, net of withholding taxes, upon the achievement of certain technology
transfer,  development,  regulatory  and  commercialization  milestones.  Qilu  also  agreed  to  pay  the  Company  double  digit  royalties  into  the  low  twenties
percent based upon annual net sales of AB-729 in the Territory. The royalties are payable on a product-by-product and region-by-region basis, subject to
certain limitations.

Qilu is responsible for all costs related to developing, obtaining regulatory approval for, and commercializing AB-729 for the treatment or prevention of
hepatitis B in the Territory. Qilu is required to use commercially reasonable efforts to develop, seek regulatory approval for, and commercialize at least one
AB-729 product candidate in the Territory. A joint development committee will be established between the Company and Qilu to coordinate and review the
development,  manufacturing  and  commercialization  plans.  Both  parties  also  agreed  to  negotiate  in  good  faith  the  terms  and  conditions  of  a  supply
agreement and related quality agreement pursuant to which the Company will manufacture or have manufactured and supply Qilu with all quantities of AB-
729  necessary  for  Qilu  to  develop  and  commercialize  in  the  Territory  until  the  Company  has  completed  manufacturing  technology  transfer  to  Qilu  and
approval of a product manufactured by Qilu, or its designated contract manufacturing organization, by the National Medical Products Administration in
China for AB-729.

Concurrent with the execution of the license agreement, the Company entered into a Share Purchase Agreement (the “Share Purchase Agreement”) with
Anchor  Life  Limited,  a  company  established  pursuant  to  the  applicable  laws  and  regulations  of  Hong  Kong  and  an  affiliate  of  Qilu  (the  “Investor”),
pursuant to which the Investor purchased 3,579,952 of the Company’s common shares, without par value (the “Common Shares”), at a purchase price of
USD $4.19 per share, which was a 15% premium on the thirty-day average closing price of the Common Shares as of the close of trading on December 10,
2021  (the  “Share  Transaction”).  The  Company  received  $15.0  million  of  gross  proceeds  from  the  Share  Transaction  on  January  6,  2022.  The  Common
Shares sold to the Investor in the Share Transaction represented approximately 2.5% of the Common Shares outstanding immediately prior to the execution
of the Share Purchase Agreement.

89

 
 
The License Agreement falls under the scope of ASC Topic 808, Collaborative Arrangements, (“ASC 808”) as both parties are active participants in the
arrangement that are exposed to significant risks and rewards. While this arrangement is in the scope of ASC 808, the Company analogizes to ASC 606 for
some aspects of this arrangement, including for the delivery of a good or service (i.e., a unit of account). Revenue recognized by analogizing to ASC 606
will  be  recorded  as  revenue  from  collaborations  and  licenses  on  the  consolidated  statements  of  operations  as  the  Company  satisfies  its  performance
obligations under the License Agreement which is expected to begin in 2022.

Assembly Biosciences, Inc.

In  August  2020,  the  Company  entered  into  a  clinical  collaboration  agreement  with  Assembly  Biosciences,  Inc.  (“Assembly”)  to  evaluate  AB-729  in
combination with Assembly’s lead HBV core inhibitor (capsid inhibitor) candidate vebicorvir (“VBR”) and standard-of-care NA therapy for the treatment
of  subjects  with  HBV  infection.  The  Company  and  Assembly  will  share  in  the  costs  of  the  collaboration.  The  Company  incurred  $2.6  million  and
$0.2 million of costs related to the collaboration during the years ended December 31, 2021 and 2020, respectively and reflected those costs in research and
development in the statements of operations and comprehensive loss. Except to the extent necessary to carry out Assembly’s responsibilities with respect to
the collaboration trial, the Company has not provided any license grant to Assembly for use of AB-729.

Vaccitech plc

In July 2021, the Company entered into a clinical collaboration agreement with Vaccitech plc (“Vaccitech”) to evaluate AB-729 followed by Vaccitech’s
VTP-300,  a  proprietary  T  cell  stimulating  therapeutic  vaccine,  in  NrtI-suppressed  patients  with  cHBV.  The  Company  is  responsible  for  managing  this
Phase  2a  proof-of-concept  clinical  trial,  subject  to  oversight  by  a  joint  development  committee  comprised  of  representatives  from  the  Company  and
Vaccitech. The Company and Vaccitech retain full rights to their respective product candidates and will split all costs associated with the clinical trial. The
Company incurred $0.5 million of costs related to the collaboration, net of Vaccitech’s 50% share, during the year ended December 31, 2021 and reflected
those net costs in research and development in the statements of operations and comprehensive loss.

Antios Therapeutics, Inc.

In June 2021, the Company entered into a clinical collaboration agreement with Antios Therapeutics, Inc. (“Antios”) to evaluate a triple combination of
AB-729, Antios’ proprietary active site polymerase inhibitor nucleotide (ASPIN), ATI-2173, and Viread (tenofovir disoproxil fumarate), a nucleos(t)ide
reverse  transcriptase  inhibitor  which  is  currently  approved  by  the  FDA,  for  the  treatment  of  patients  with  cHBV.  Antios  is  responsible  for  the  costs  of
adding a single cohort to its clinical trial. The Company is responsible for the manufacture and supply of AB-729, the cost of which is not material.

X-Chem, Inc. and Proteros biostructures GmbH

In March 2021, the Company entered into a discovery research and license agreement with X-Chem, Inc. (“X-Chem”) and Proteros biostructures GmbH
(“Proteros”) to focus on the discovery of novel inhibitors targeting the SARS-CoV-2 nsp5 main protease (M ). The agreement is designed to accelerate the
development of pan-coronavirus agents to treat COVID-19 and potential future coronavirus outbreaks. This collaboration brought together the Company’s
expertise  in  the  discovery  and  development  of  antiviral  agents  with  X-Chem’s  industry  leading  DNA-encoded  library  (DEL)  technology  and  Proteros’
protein sciences, biophysics and structural biology capabilities and provides important synergies to potentially identify safe and effective therapies against
coronaviruses  including  SARS-CoV-2.  The  collaboration  allows  for  the  rapid  screening  of  one  of  the  largest  small  molecule  libraries  against  M   (an
essential protein required for the virus to replicate itself) and the use of state-of-the-art structure guided methods to rapidly optimize M  inhibitors, which
the  Company  could  potentially  progress  to  clinical  candidates.  The  agreement  provides  for  payments  by  the  Company  to  X-Chem  and  Proteros  upon
satisfaction  of  certain  development,  regulatory  and  commercial  milestones,  as  well  as  royalties  on  sales.  Through  this  collaboration,  the  Company  has
identified and obtained a worldwide exclusive license to several molecules that inhibit M , a validated target for the treatment of COVID-19 and potential
future  coronavirus  outbreaks.  The  Company  incurred  $1.9  million  of  costs  related  to  the  collaboration  during  the  year  ended  December  31,  2021  and
reflected those costs in research and development in the statements of operations and comprehensive loss.

pro

pro

pro

pro

90

Royalty Entitlements

Alnylam Pharmaceuticals, Inc. and Acuitas Therapeutics, Inc.

The Company has two royalty entitlements to Alnylam’s global net sales of ONPATTRO.

In  2012,  the  Company  entered  into  a  license  agreement  with  Alnylam  Pharmaceuticals,  Inc.  (“Alnylam”)  that  entitles  Alnylam  to  develop  and
commercialize products with the Company’s LNP technology. Alnylam’s ONPATTRO, which represents the first approved application of the Company’s
LNP  technology,  was  launched  by  Alnylam  in  2018.  Under  the  terms  of  this  license  agreement,  the  Company  is  entitled  to  tiered  royalty  payments  on
global net sales of ONPATTRO ranging from 1.00% - 2.33% after offsets, with the highest tier applicable to annual net sales above $500 million. This
royalty  interest  was  sold  to  OMERS,  effective  as  of  January  1,  2019,  for  $20  million  in  gross  proceeds  before  advisory  fees.  OMERS  will  retain  this
entitlement until it has received $30 million in royalties, at which point 100% of this royalty entitlement on future global net sales of ONPATTRO will
revert back to the Company. OMERS has assumed the risk of collecting up to $30.0 million of future royalty payments from Alnylam and the Company is
not obligated to reimburse OMERS if they fail to collect any such future royalties. If this royalty entitlement reverts to the Company, it has the potential to
provide an active royalty stream or to be otherwise monetized again in full or in part. From the inception of the royalty sale through December 31, 2021, an
aggregate of $11.2 million of royalties have been earned by OMERS. See note 9 for further details.

The Company also has rights to a second, lower royalty interest on global net sales of ONPATTRO originating from a settlement agreement and subsequent
license agreement with Acuitas. This royalty entitlement from Acuitas has been retained by the Company and was not part of the royalty entitlement sale to
OMERS.

Gritstone Oncology, Inc.

On October 16, 2017, the Company entered into a license agreement with Gritstone that granted them worldwide access to its portfolio of proprietary and
clinically  validated  LNP  technology  and  associated  intellectual  property  to  deliver  Gritstone’s  self-replicating,  non-mRNA,  RNA-based  neoantigen
immunotherapy  products.  Gritstone  paid  the  Company  an  upfront  payment,  and  will  make  payments  for  achievement  of  development,  regulatory,  and
commercial milestones and royalties. As a result of the Company’s agreement with Genevant (see note 5 for details), from April 11, 2018 going forward,
Genevant is entitled to 50% of the revenues earned by the Company from Gritstone. The Company is the agent in this arrangement and records revenue on
a net basis. Milestone  payments  that  are  not  within  the  control  of  the  Company  or  the  licensee,  such  as  those  that  require  regulatory  approvals,  are  not
considered  probable  of  being  achieved  until  those  approvals  are  received.  The  Company  did  not  receive  any  payments  from  Gritstone  during  the  years
ended December 31, 2021 or 2020.

Acrotech Biopharma LLC

In May 2006, the Company signed a number of agreements with Talon Therapeutics, Inc. (“Talon,” formerly Hana Biosciences, Inc.) that granted Talon
worldwide licenses to certain of its LNP technology (the “Talon License Agreement”) for three of Talon’s chemotherapy products, Marqibo®, Alocrest ™
(Optisomal Vinorelbine) and Brakiva ™ (Optisomal Topotecan).

In  2012,  Talon  received  approval  for  Marqibo  from  the  FDA  for  the  treatment  of  adult  patients  with  Philadelphia  chromosome  negative  acute
lymphoblastic  leukemia  in  second  or  greater  relapse  or  whose  disease  has  progressed  following  two  or  more  anti-leukemia  therapies.  Marqibo  is  a
liposomal  formulation  of  the  chemotherapy  drug,  vincristine.  In  2012,  the  Company  received  a  milestone  payment  of  $1.0  million  based  on  the  FDA’s
approval  of  Marqibo  and  receives  royalty  payments  based  on  Marqibo’s  commercial  sales.  There  are  no  further  milestones  related  to  Marqibo  but  the
Company is eligible to receive total milestone payments of up to $18.0 million on Alocrest and Brakiva. Talon was acquired by Spectrum Pharmaceuticals,
Inc. in July 2013, who subsequently sold the license of Marqibo to Acrotech in January 2019. The acquisitions and license sale did not affect the terms of
the license between Talon and the Company.

Revenues from the Company’s royalty entitlements are summarized in the following table:

91

  
Revenue from collaborations and licenses

Acuitas Therapeutics, Inc.
Acrotech Biopharma, LLC

Non-cash royalty revenue

Alnylam Pharmaceuticals, Inc.

Total revenue

12.    Shareholders’ equity

Authorized share capital

Year ended December 31,

2021

2020

(in thousands)

$

$

4,675  $
205 

6,108 
10,988  $

3,259 
269 

3,386 
6,914 

The Company’s authorized share capital consists of an unlimited number of common shares and 1,164,000 preferred shares without par value.

Open Market Sale Agreement

The Company has an Open Market Sale Agreement with Jefferies LLC (“Jefferies”) dated December 20, 2018, as amended by Amendment No. 1, dated
December 20, 2019, Amendment No. 2, dated August 7, 2020 and Amendment No. 3, dated March 4, 2021 (as amended, the “Sale Agreement”), under
which the Company may issue and sell common shares, from time to time, under a shelf registration statement on Form S-3 (File No. 333-248467), filed
with  the  SEC  on  August  28,  2020  (the  “Registration  Statement”).  On  March  4,  2021,  the  Company  filed  a  prospectus  supplement  with  the  SEC  (the
“March 2021 Prospectus Supplement”) in connection with the offering of up to an additional $75.0 million of the Company’s common shares pursuant to
the Sale Agreement under the Registration Statement, which the Company fully utilized during 2021. On October 8, 2021, the Company filed a prospectus
supplement  with  the  SEC  (the  “October  2021  Prospectus  Supplement”)  in  connection  with  the  offering  of  up  to  an  additional  $75.0  million  of  the
Company’s common shares pursuant to the Sale Agreement under the Registration Statement.

During  the  years  ended  December  31,  2021  and  2020,  the  Company  issued  31,571,036  and  24,728,368  common  shares,  respectively,  under  the  Sale
Agreement, as amended, resulting in net proceeds of approximately $134.7 million and $86.3 million, respectively.

As of December 31, 2021, there was approximately $52.3 million remaining available under the October 2021 Prospectus Supplement.

Series A Preferred Shares

In October 2017, the Company entered into a subscription agreement with Roivant for the sale of Preferred Shares to Roivant for gross proceeds of $116.4
million. The Preferred Shares were non-voting and were convertible into common shares at a conversion price of $7.13 per share (which represented a 15%
premium to the closing price of $6.20 per share). The purchase price for the Preferred Shares plus an amount equal to 8.75% per annum, compounded
annually,  was  subject  to  mandatory  conversion  into  common  shares  on  October  18,  2021,  at  which  time  the  Preferred  Shares  were  converted  into
22,833,922  common  shares  and  both  the  lockup  and  standstill  periods  that  Roivant  had  previously  agreed  to  expired.  Immediately  following  the
conversion, Roivant owned approximately 27% of the Company’s outstanding common shares as of December 31, 2021.

92

 
The Company recorded the Preferred Shares wholly as equity with no bifurcation of conversion feature from the host contract, given that the Preferred
Shares  could  not  be  cash  settled  and  the  redemption  features  were  within  the  Company’s  control,  which  included  a  fixed  conversion  ratio  with
predetermined timing and proceeds. The Company accrued for the 8.75% per annum compounding coupon at each reporting period end date as an increase
to share capital, and an increase to deficit (see statement of stockholder’s equity).

13.    Stock-based compensation

Awards outstanding and available for issuance

During  the  year  ended  December  31,  2021,  the  Company  had  stock  options  outstanding  under  the  following  plans  (collectively,  the  “Plans”):  the  2016
Omnibus Share and Incentive Plan (the “2016 Plan”), the 2011 Omnibus Share Compensation Plan (the “2011 Plan”); the 2019 inducement grant; and the
OnCore Option Plan.

As of December 31, 2021, the aggregate number of shares authorized for awards under all Plans was 24,790,202. As of December 31, 2021, the Company
had 11,410,574 options outstanding and 9,519,084 awards available for issuance under the Plans. 

The Company issues new common shares of stock to settle options exercised.

The 2011 Plan expired in June 2021. Under the 2016 Plan, the Company’s board of directors may grant options, and other types of awards, to employees,
directors and consultants of the Company.  The exercise price of the options is determined by the Company’s board of directors but will be at least equal to
the closing market price of the common shares on the date of grant and the term may not exceed 10 years.  Options granted generally vest over four years
for employees and for directors’ initial grants, and immediately for directors’ annual grants.

In June 2019, the Company provided an inducement grant of 1,112,000 options to its newly hired Chief Executive Officer. These options were awarded in a
separate plan as non-qualified awards and are governed by the substantially the same terms as the 2016 Plan.

Hereafter, information on options governed by the 2016 Plan, the 2011 Plan and inducement grant (the “Arbutus Plans”) is presented on a consolidated
basis as the terms of the plans are similar. Information on the OnCore Option Plan is presented separately.

93

Stock options under the Arbutus Plans

Equity-classified stock options under the Arbutus Plans

The following table summarizes activity related to the Company’s equity-classified stock options, including its performance options, for the year ended
December 31, 2021:

Stock Options Outstanding

Vested Stock Options

Non-Vested Stock Options

Number

Weighted-Average
Exercise Price

Number

Number

Balance as of December 31, 2020
Options granted
Options exercised
Options forfeited, canceled or expired
Options vested
Balance as of December 31, 2021

10,391,676  $
3,531,050  $
(637,721) $
(1,975,031) $
—  $
11,309,974  $

4.53 
4.17 
3.13 
6.54 
— 
4.14 

6,384,386 
— 
(637,721)
(1,698,338)
2,496,021 
6,544,348 

Weighted-Average
Grant-Date Fair Value
2.51 
3.06 
— 
2.84 
2.88 
2.71 

4,007,290  $
3,531,050  $
—  $
(276,693) $
(2,496,021) $
4,765,626  $

The intrinsic value of options exercised under the Arbutus Plans during 2021 and 2020 are $0.2 million and $0.3 million, respectively.

The following table summarizes additional information related to the Company’s equity-classified stock options, including its performance options, as of
December 31, 2021:

As of December 31, 2021

Options outstanding and expected to vest
Number of stock options outstanding
Weighted-average exercise price
Intrinsic value (in $000s)
Weighted-average term remaining

Vested stock options

Number of vested stock options
Weighted-average exercise price
Intrinsic value (in $000s)
Weighted-average term remaining

$
$

$
$

11,309,974 
4.14 
5,117 
7.6 years

6,544,348 
4.43 
3,233 
6.9 years

The assumptions used in the Black-Scholes option-pricing for grants made during the years ended December 31, 2021 and 2020 are as follows:

Expected average option term
Expected volatility
Expected dividends
Risk-free interest rate

December 31, 2021

December 31, 2020

5.6 years
93.4 %
— %
0.67 %

6.2 years
80.2 %
— %
1.2 %

The Company considers all available information when estimating the fair value of its stock option grants.

94

Liability-classified stock options under the Arbutus Plans

Due to the change in the Company’s functional currency as of January 1, 2016, certain stock option awards with exercise prices denominated in Canadian
dollars changed from equity classification to liability classification (see note 2).

The following table summarizes activity related to the Company’s liability-classified stock options for the year ended December 31, 2021:

Balance as of December 31, 2020
Options exercised
Options forfeit, canceled or expired
Balance as of December 31, 2021

Stock Options Vested and Outstanding

Number

Weighted-Average Exercise Price

197,500  $
(70,000) $
(107,500) $
20,000  $

6.00 
1.62 
7.65 
12.98 

All of the outstanding liability-classified options are vested and the intrinsic value of those options exercised during 2021 was less than $0.1 million. The
weighted average term remaining for the liability-classified options is 2.1 years as of December 31, 2021 and the fair value was less than $0.1 million.

Liability options are re-measured to their fair values at each reporting date, using the Black-Scholes valuation model.

OnCore Option Plan

The Company has reserved shares for the future exercises of OnCore stock options that were granted prior to the merger in 2015. The Company is not
permitted to grant any further options under the OnCore Option Plan.

The following table summarizes activity related to the OnCore stock options for the year ended December 31, 2021:

Stock Options Vested and Outstanding
Number of Equivalent
Company Common Shares

Weighted-Average Exercise
Price

Balance as of December 31, 2020
Options exercised
Options forfeit, canceled or expired
Balance as of December 31, 2021

Number of OnCore Options
80,035 
— 
— 
80,035 

The following table summarizes additional information related to the OnCore stock options as of December 31, 2021:

Vested stock options
Intrinsic value (in $000s)
Weighted-average term remaining

Employee Stock Purchase Plan

In May 2020, the Company’s stockholders approved the 2020 Employee Stock Purchase Plan (ESPP) which became effective on May 28, 2020. A total of
1,500,000 common shares were reserved for issuance under the ESPP. Company employees contribute funds via payroll deductions, which are used to buy
Company  common  shares  at  a  discount  of  up  to  15%  based  on  the  lower  of  the  price  at  the  start  of  the  offering  period  and  at  the  end  of  the  relevant
purchase period within such offering

95

80,600  $
—  $
—  $
80,600  $

0.56 
— 
— 
0.56 

As of December 31, 2021

$

183 
2.8 years

period.  The  initial  offering  period  under  the  ESPP  was  September  1,  2020  through  August  31,  2021  with  purchase  dates  set  on  February  26,  2021  and
August 31, 2021, with subsequent offering periods beginning on September 1 and ending on August 31. A total of 196,335 ESPP shares were issued under
the plan and the balance remaining for issuance under the ESPP plan is 1,303,665 at December 31, 2021. For the years ended December 31, 2021 and
2020, the Company recognized $0.3 million and $0.2 million, respectively, of stock-based compensation expense related to the ESPP. The fair value of the
right  to  acquire  stock  at  a  discounted  price  under  the  ESPP  is  calculated  using  the  Black-Scholes  valuation  model  and  recorded  as  stock-based
compensation. Expense is recognized over the period the employee contributes to the plan through payroll deductions.

Stock-based compensation expense

Total stock-based compensation expense was comprised of: (1) vesting of options awarded to employees under the Arbutus and OnCore Plans calculated in
accordance  with  the  fair  value  method  as  described  above;  (2)  fair  value  adjustments  for  the  Company’s  liability-classified  stock  options;  and  (3)
amortization of compensation cost related to the ESPP.

The Company recognizes forfeitures as they occur, and the effects of forfeitures are reflected in stock-based compensation expense.

Stock-based compensation has been recorded in the consolidated statement of operations and comprehensive income (loss) as follows:

Research and development
General and administrative

Total

Year Ended December 31,

2021

2020

(in thousands)

2,777  $
3,647 
6,424  $

3,090 
3,071 
6,161 

$

$

At  December  31,  2021,  there  remained  $11.6  million  of  unearned  compensation  expense  related  to  unvested  equity  employee  stock  options  to  be
recognized as expense over a weighted-average period of approximately 2.7 years.

For the year ended December 31, 2020, the Company recognized $0.3 million of performance based stock compensation expense, which is included in the
table above. There was no performance based stock compensation expense in 2021.

14.    Income taxes

The Company is subject to taxation and files income tax returns in Canadian federal and provincial, United States federal and several state jurisdictions.
The United States Internal Revenue service is currently examining the Company’s federal tax return for 2018 and the Canada Revenue Agency is currently
examining the Company’s Canadian tax returns for 2018 and 2019. The outcome of tax audits cannot be predicted with certainty, however the Company
believes that an adequate provision has been made for any adjustments that may result from the examination. If any issues addressed in the Company’s tax
audits are resolved in a manner not consistent with management’s expectations, the Company could be required to adjust its provision for income tax in the
period such resolution occurs.

Income tax (benefit) expense varies from the amounts that would be computed by applying the combined Canadian federal and provincial income tax rate
of 27% (2020 - 27%) to the loss before income taxes as shown in the following tables:

96

 
 
Computed taxes (benefits) at Canadian federal and provincial tax rates
Adjustment to prior year
Permanent and other differences
Change in valuation allowance - other
Federal and Provincial ITCs applied
Difference due to income taxed at foreign rates
Stock-based compensation
Income tax expense (recovery)

Year ended December 31,

2021

2020

(in thousands)

$

$

(23,864) $
(1,041)
4,292 
15,928 
(611)
4,840 
456 
—  $

(17,211)
390 
622 
12,033 
— 
3,716 
450 
— 

As of December 31, 2021, the Company had investment tax credits available to reduce Canadian federal income taxes of $7.4 million, versus $8.0 million
as of December 31, 2020, which expire between 2030 and 2037, and provincial income taxes of $2.1 million, versus $2.6 million as of December 31, 2020,
which expire between 2024 and 2027. The investment tax credits are accounted for under a flow-through method. In addition, the Company had research
and development credits of $3.8 million as of December 31, 2021, and $3.9 million as of December 31, 2020, which expire between 2031 and 2038 and
which can be used to reduce future taxable income in the United States.

As of December 31, 2021, the Company had scientific research and experimental development expenditures of $62.8 million available for indefinite carry-
forward, versus the $58.6 million it had as of December 31, 2020. The Company also had net operating losses of $177.7 million as of December 31, 2021
and $175.6 million as of December 31, 2020, which are due to expire between 2028 and 2038 and which can be used to offset future taxable income in
Canada.

As of December 31, 2021 and December 31, 2020, the Company had $11.7 million of net operating losses due to expire in 2035 which can be used to offset
future taxable income in the United States. Future use of a portion of the United States loss carryforwards are subject to limitations under Internal Revenue
Code  Section  382.  United  States  net  operating  loss  carryforwards  arising  in  2019  and  future  periods  have  an  indefinite  carryforward  period.  As  of
December 31, 2021 and December 31, 2020, the Company had $197.8 million and $124.6 million, respectively, of total regular net operating losses which
can be used to offset future taxable income in the United States.

As  a  result  of  ownership  changes  occurring  on  October  1,  2014  and  March  4,  2015,  the  Company’s  ability  to  use  these  losses  may  be  limited.  Losses
incurred to date may be further limited if a subsequent change in control occurs.

The Company generated $7.7 million and $80.7 million in pre-tax domestic and foreign losses, respectively, for the year ended December 31, 2021. The
Company generated $1.8 million and $61.9 million in pre-tax domestic and foreign losses, respectively, for the year ended December 31, 2020.

97

 
 
Significant components of the Company’s deferred tax assets and liabilities are shown below:

Deferred tax assets (liabilities):

Non-capital losses carryforwards
Research and development deductions
Book amortization in excess of tax
Revenue recognized for tax purposes in excess of revenue recognized for accounting purposes
Tax value in excess of accounting value in lease inducements
Federal investment tax credits
Provincial investment tax credits
Equity accounted for investment
Federal R&E credits
Deductible stock options
Other

Total deferred tax assets
Valuation allowance

Net deferred tax assets (liabilities)

15.    Related party transactions

As of December 31,

2021

2020

(in thousands)

$

$

$

90,255  $
16,968 
(634)
4,400 
549 
5,301 
2,119 
3,375 
3,741 
3,309 
1,341 
130,724  $
(130,724)

—  $

74,351 
15,812 
(737)
5,279 
627 
5,872 
2,644 
3,375 
3,897 
2,457 
1,218 
114,795 
(114,795)
— 

Pursuant to a financing and related subscription agreement, the Company issued Roivant the Preferred Shares in October 2017. On October 18, 2021, the
Preferred  Shares  were  converted  into  22,833,922  common  shares.  Immediately  following  the  conversion,  Roivant  owned  approximately  27%  of  the
Company’s outstanding common shares. See note 12 for further details.

On  July  31,  2020,  Genevant  was  recapitalized  through  an  equity  investment  and  conversion  of  previously  issued  convertible  debt  securities  held  by
Roivant. Arbutus participated in the recapitalization of Genevant with an investment of $2.5 million. Arbutus determined that this $2.5 million additional
investment in Genevant represented the funding of prior losses and accordingly, the Company recorded the amount as an equity investment loss on the
Consolidated Statements of Operations and Comprehensive Loss in 2020. As of December 31, 2021, the carrying value of the Company’s investment in
Genevant was zero and the Company owned approximately 16% of the common equity of Genevant. See note 5 for further details.

During  each  of  the  years  ended  December  31,  2021  and  2020,  Genevant  purchased  certain  administrative  and  transitional  services  from  the  Company
totaling less than $0.1 million. These services were billed at agreed hourly rates and reflective of market rates for such services and these costs were netted
in research and development in the income statement.

98

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

None.

Item 9A. Controls and Procedures

Disclosure Controls and Procedures

Our management, including our principal executive officer and principal financial officer, has evaluated the effectiveness of the design and operation of our
disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange
Act”)), as of the end of the period covered by this Annual Report on Form 10-K. Based upon that evaluation, our Chief Executive Officer (our principal
executive  officer)  and  Chief  Financial  Officer  (our  principal  financial  officer),  concluded  that,  as  of  December  31,  2021,  our  disclosure  controls  and
procedures were effective to provide reasonable assurance that (a) the information required to be disclosed by us in the reports that we file or submit under
the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and (b) such information
is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely
decisions regarding required disclosure.

In  designing  and  evaluating  our  disclosure  controls  and  procedures,  our  management  recognized  that  any  controls  and  procedures,  no  matter  how  well
designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and our management necessarily was required to
apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Management’s Annual Report on Internal Control over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act
Rules  13a-15(f)  and  15d-15(f).  Under  the  supervision  and  with  the  participation  of  our  management,  including  our  principal  executive  officer  and  our
principal financial officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in the
Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO 2013”).

Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with generally accepted accounting principles in the United States of America. Our
internal  control  over  financial  reporting  includes  those  policies  and  procedures  that  (i)  pertain  to  the  maintenance  of  records  that,  in  reasonable  detail,
accurately and fairly reflect the transactions and dispositions of our assets; (ii) provide reasonable assurance that transactions are recorded as necessary to
permit preparation of financial statements in accordance with generally accepted accounting principles, and our receipts and expenditures are being made
only in accordance with authorizations of our management and directors; and (iii) provide reasonable assurance regarding prevention or timely detection of
unauthorized acquisition, use, or disposition of our assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of
effectiveness  to  future  periods  are  subject  to  the  risk  that  controls  may  become  inadequate  because  of  changes  in  conditions,  or  that  the  degree  of
compliance with the policies or procedures may deteriorate. Based on our evaluation under the framework in COSO 2013, our management concluded that
our internal control over financial reporting was effective as of December 31, 2021.

Changes in Internal Control over Financial Reporting

There have not been changes in our internal control over financial reporting during the quarter ended December 31, 2021 that have materially affected or
are reasonably likely to materially affect the Company’s internal control over financial reporting.

99

 
 
 
Item 9B. Other Information

None.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.    

Not applicable.

100

Item 10. Directors, Executive Officers and Corporate Governance

PART III

The information required by this item is incorporated herein by reference to our Proxy Statement for the 2022 Annual General Meeting of the Stockholders
to be filed with the SEC within 120 days of the fiscal year ended December 31, 2021.

We  have  adopted  a  code  of  business  conduct  for  directors,  officers  and  employees  (the  “Code  of  Conduct”),  which  is  available  on  our  website  at
http://investor.arbutusbio.com/corporate-governance-0 and also at www.sedar.com. We intend to satisfy the disclosure requirement under Item 5.05 of Form
8-K regarding any amendment to, or waiver from, a provision of this Code of Conduct by posting such information on the website address and location
specified above.

Item 11. Executive Compensation

The information required by this item is incorporated herein by reference to our Proxy Statement for the 2022 Annual General Meeting of the Stockholders
to be filed with the SEC within 120 days of the fiscal year ended December 31, 2021.

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

The information required by this item is incorporated herein by reference to our Proxy Statement for the 2022 Annual General Meeting of the Stockholders
to be filed with the SEC within 120 days of the fiscal year ended December 31, 2021.

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

The information required by this item is incorporated herein by reference to our Proxy Statement for the 2022 Annual General Meeting of the Stockholders
to be filed with the SEC within 120 days of the fiscal year ended December 31, 2021.

Item 14. Principal Accounting Fees and Services

The information required by this item is incorporated herein by reference to our Proxy Statement for the 2022 Annual General Meeting of the Stockholders
to be filed with the SEC within 120 days of the fiscal year ended December 31, 2021.

101

Item 15. Exhibits and Financial Statement Schedules

PART IV

Exhibit

2.1*

3.1*

3.2*

4.1**

10.1†*

10.2†*

10.3†*

10.4**#

10.5†*

10.6†*

10.7†*

10.8†*

10.9*#

10.10†*

10.11†*

  Description

Agreement and Plan of Merger and Reorganization, dated January 11, 2015, by and among Tekmira Pharmaceuticals Corporation, TKM
Acquisition Corporation and OnCore Biopharma, Inc. (incorporated herein by reference to Exhibit 2.1 to the Registrant’s Current
Report on Form 8-K/A filed with the SEC on January 26, 2015).

Notice of Articles and Articles of the Company, as amended (incorporated herein by reference to Exhibit 3.1 to the Registrant’s Annual
Report on Form 10-K for the year ended December 31, 2017, filed with the SEC on March 16, 2018).

Amendment to Articles of the Company (incorporated herein by reference to Exhibit 3.1 to the Registrant’s Quarterly Report on Form
10-Q for the quarter ended September 30, 2018, filed with the SEC on November 7, 2018).

Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934.

Amended and Restated License Agreement, between Inex Pharmaceuticals Corporation and Hana Biosciences, Inc., dated April 30,
2007 (incorporated herein by reference to Exhibit 4.2 to the Registrant’s Amendment No. 1 to Form 20-F for the year ended December
31, 2010 filed with the SEC on January 31, 2012).

Amendment No. 1 to the Amended and Restated Agreement, between the Company (formerly Inex Pharmaceuticals Corporation) and
Hana Biosciences, Inc., effective as of May 27, 2009 (incorporated herein by reference to Exhibit 4.1 to the Registrant’s Annual Report
on Form 20-F for the year ended December 31, 2010 filed with the SEC on June 3, 2011).

Amendment No. 2 to the Amended and Restated Agreement, between the Company (formerly Inex Pharmaceuticals Corporation) and
Hana Biosciences, Inc., effective as of September 20, 2010 (incorporated herein by reference to Exhibit 4.21 to the Registrant’s Annual
Report on Form 20-F for the year ended December 31, 2010 filed with the SEC on June 3, 2011).

Form of Arbutus Biopharma Corporation Indemnity Agreement.

License Agreement between the University of British Columbia and Inex Pharmaceuticals Corporation executed on July 30, 2001
(incorporated herein by reference to Exhibit 4.17 to the Registrant’s Annual Report on Form 20-F for the year ended December 31,
2010 filed with the SEC on June 3, 2011).

Amendment Agreement between the University of British Columbia and Inex Pharmaceuticals Corporation dated July 11, 2006
(incorporated herein by reference to Exhibit 4.18 to the Registrant’s Annual Report on Form 20-F for the year ended December 31,
2010 filed with the SEC on June 3, 2011).

Second Amendment Agreement between the University of British Columbia and Inex Pharmaceuticals Corporation dated January 8,
2007 (incorporated herein by reference to Exhibit 4.19 to the Registrant’s Annual Report on Form 20-F for the year ended December
31, 2010 filed with the SEC on June 3, 2011).

Consent Agreement of the University of British Columbia to Inex/Alnylam Sublicense Agreement dated January 8, 2007 (incorporated
herein by reference to Exhibit 4.20 to the Registrant’s Annual Report on Form 20-F for the year ended December 31, 2010 filed with
the SEC on June 3, 2011).

Tekmira 2011 Omnibus Share Compensation Plan approved by shareholders on June 22, 2011 (incorporated herein by reference to
Exhibit 4.25 to the Registrant’s Annual Report on Form 20-F for the year ended December 31, 2011 filed with the SEC on March 27,
2012).

Settlement Agreement and General Release, by and among Tekmira Pharmaceuticals Corporation, Protiva Biotherapeutics Inc.,
Alnylam Pharmaceuticals, Inc., and AlCana Technologies, Inc., dated November 12, 2012 (incorporated herein by reference to Exhibit
4.26 to the Registrant’s Annual Report on Form 20-F for the year ended December 31, 2012 filed with the SEC on March 27, 2013).

Cross-License Agreement by and among Alnylam Pharmaceuticals, Inc., Tekmira Pharmaceuticals Corporation and Protiva
Biotherapeutics Inc., dated November 12, 2012 (incorporated herein by reference to Exhibit 4.27 to the Registrant’s Annual Report on
Form 20-F for the year ended December 31, 2012 filed with the SEC on March 27, 2013).

102

10.12*

10.13*#

10.14*#

10.15†*

10.16*#

10.17*#

10.18*†

10.19*†

10.20*

10.21*

10.22*

10.23*

10.24*

10.25*

10.26*#

10.27*#

Form of Standstill Agreement (incorporated herein by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K/A filed
with the SEC on January 26, 2015).

Executive Employment Agreement, dated effective as of February 25, 2016, between Arbutus Biopharma, Inc. and Elizabeth Howard
(incorporated herein by reference to Exhibit 10.78 to the Registrant’s Annual Report on Form 10-K for the year ended December 31,
2015, filed with the SEC on March 9, 2016).

Amending Agreement, dated as of November 2, 2015, among Arbutus Biopharma Corporation, Roivant Sciences Ltd., Patrick T.
Higgins, Michael J. McElhaugh, Michael J. Sofia and Bryce A. Roberts (incorporated herein by reference to Exhibit 10.3 to the
Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2015, filed with the SEC on November 5, 2015).

Stock Purchase Agreement by and among OnCore Biopharma, Inc. and each of the stockholders of Enantigen Therapeutics, Inc., dated
as of October 1, 2014 (incorporated herein by reference to Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the
quarter ended March 31, 2015, filed with the SEC on May 6, 2015).

Executive Employment Agreement, dated effective as of July 11, 2015, between OnCore Biopharma, Inc. and Michael J. Sofia
(incorporated herein by reference to Exhibit 10.8 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30,
2015, filed with the SEC on August 7, 2015).

Amended 2011 Omnibus Share Compensation Plan (incorporated herein by reference to Exhibit 10.1 to the Registrant’s Quarterly
Report on Form 10-Q for the quarter ended June 30, 2016, filed with the SEC on August 4, 2016).

Lease Agreement between the Company and ARE-PA Region No. 7, LLC dated August 9, 2016 (incorporated herein by reference to
Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2016, filed with the SEC on
November 3, 2016).

First Amendment to Lease Agreement between Arbutus Biopharma, Inc. and ARE-PA Region No. 7, LLC dated October 7, 2016
(incorporated herein by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September
30, 2016, filed with the SEC on November 3, 2016).

Acknowledgment of Commencement Date in connection with Lease Agreement between the Company and ARE-PA Region No. 7,
LLC dated August 9, 2016 and as amended on October, 7, 2016 (incorporated herein by reference to Exhibit 10.3 to the Registrant’s
Quarterly Report on Form 10-Q for the quarter ended September 30, 2016, filed with the SEC on November 3, 2016).

Master Contribution And Share Subscription Agreement, by and between the Company, Genevant Sciences Ltd. and Roivant Sciences
LTD. (incorporated herein by reference Exhibit 10.1 to the Registrant's Quarterly Report on Form 10-Q for the Quarter ended March 31,
2018 filed with the SEC on May 4, 2018).

Open Market Sale AgreementSM, dated December 20, 2018, by and between the Company and Jefferies LLC (incorporated herein by
reference to Exhibit 1.1 of the Current Report on Form 8-K filed with the SEC on December 20, 2018).

Amendment No. 1 to the Open Market Sale AgreementSM, dated December 20, 2019, by and between the Company and Jefferies LLC
(incorporated herein by reference to Exhibit 1.3 to the Registrant’s Registration Statement on Form S-3 filed with the SEC on December
20, 2019).

Amendment No. 2 to the Open Market Sale AgreementSM, dated August 7, 2020, by and between the Company and Jefferies LLC
(incorporated herein by reference to Exhibit 1.1 to the Registrant’s Current Report on Form 8-K filed with the SEC on August 7, 2020).

Amendment No. 3 to the Open Market Sale AgreementSM, dated March 4, 2021, by and between Arbutus Biopharma Corporation and
Jefferies LLC (incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed with the SEC on
March 4, 2021.)

Executive Employment Agreement, dated June 11, 2018, by and between the Company and David Hastings. (incorporated herein by
reference to Exhibit 10.52 of the Form 10-K filed with the SEC on March 7, 2019).

Executive Employment Agreement, dated October 8, 2018, by and between the Company and Gaston Picchio (incorporated by
reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the Quarter ended September 30, 2018, filed with the
SEC on November 7, 2018).

103

10.28*#

10.29*#

10.30*

10.31*#

10.32*#

10.33*#

10.34*#

10.35*#

10.36†*

10.37†*

10.38†*

10.39†

10.40*

10.41†**

21.1**

23.1**

31.1**

Employment Agreement, dated June 13, 2019, by and between the Company and William H. Collier (incorporated herein by reference
to Exhibit 10.3 to the Registrant’s Current Report on Form 8-K filed with the SEC on June 18, 2019).

Executive Employment Agreement, dated July 10, 2015, by and between the Company and Michael McElhaugh, as amended by the
First Amendment to Executive Employment Agreement, dated April 20, 2016, and the Second Amendment to Executive Employment
Agreement dated December 11, 2018 (incorporated herein by reference to Exhibit 10.5 to the Registrant’s Quarterly Report on Form
10-Q for the Quarter ended June 30, 2019, filed with the SEC on August 5, 2019).

Purchase and Sale Agreement, dated July 2, 2019, by and between the Company and OCM IP Healthcare Portfolio LP (incorporated
herein by reference to Exhibit 10.6 to the Registrant’s Quarterly Report on Form 10-Q for the Quarter ended June 30, 2019, filed with
the SEC on August 5, 2019).

Arbutus Biopharma Corporation 2016 Omnibus Share and Incentive Plan, as supplemented by the Committee on May 28, 2020
(incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed with the SEC on June 1, 2020).

Arbutus Biopharma Corporation 2020 Employee Stock Purchase Plan (incorporated herein by reference to Exhibit 10.2 to the
Registrant’s Current Report on Form 8-K filed with the SEC on June 1, 2020).

Form of Arbutus Biopharma Corporation Option Agreement (incorporated herein by reference to Exhibit 10.8 to the Registrant’s
Quarterly Report on Form 10-Q for the Quarter ended June 30, 2019, filed with the SEC on August 5, 2019).

Option Agreement, dated June 24, by and between the Company and William H. Collier (incorporated herein by reference to Exhibit
10.9 to the Registrant’s Quarterly Report on Form 10-Q for the Quarter ended June 30, 2019, filed with the SEC on August 5, 2019).

Offer Letter, dated August 8, 2019, by and between the Company and Andrew Cheng (incorporated herein by reference to Exhibit 10.3
to the Registrant’s Quarterly Report on Form 10-Q for the Quarter ended September 30, 2019, filed with the SEC on November 6,
2019).

Cross License Agreement, dated April 11, 2018, by and between the Company and Genevant Sciences Ltd. (incorporated herein by
reference to Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the Quarter ended June 30, 2020, filed with the SEC on
August 7, 2020).

First Amendment to Cross License Agreement, dated June 27, 2018, by and among the Company, Genevant Sciences Ltd and Genevant
Sciences GmbH. (incorporated herein by reference to Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the Quarter
ended June 30, 2020, filed with the SEC on August 7, 2020).

Second Amendment to Cross License Agreement, dated June 27, 2018, by and among the Company, Genevant Sciences Ltd. and
Genevant Sciences GmbH. (incorporated herein by reference to Exhibit 10.5 to the Registrant’s Quarterly Report on Form 10-Q for the
Quarter ended June 30, 2020, filed with the SEC on August 7, 2020).

License Agreement, dated December 9, 2021, by and between the Company and Genevant Sciences GmbH (incorporated herein by
reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed with the SEC on December 10, 2021).

Arbutus Biopharma Corporation 2016 Omnibus Share and Incentive Plan, as supplemented and amended (incorporated herein by
reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed with the SEC on June 1, 2021).

Technology Transfer and Exclusive License Agreement, dated December 13, 2021, by and between the Company and Qilu
Pharmaceutical Co., Ltd.

List of Subsidiaries.

Consent of Ernst and Young LLP, an Independent Registered Public Accounting Firm.

Certification of Chief Executive Officer pursuant to Rule 13a-14 or 15d-14 of the Securities Exchange Act of 1934, as adopted pursuant
to Section 302 of the Sarbanes-Oxley Act of 2002.

104

31.2**

32.1**

32.2**

Certification of Chief Financial Officer pursuant to Rule 13a-14 or 15d-14 of the Securities Exchange Act of 1934, as adopted pursuant
1
to Section 302 of the Sarbanes-Oxley Act of 2002.

Certification of Chief Executive Officer pursuant to 18 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.

101.INS**

  XBRL Instance Document

101.SCH**

  XBRL Taxonomy Extension Schema Document

101.CAL**

  XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF**

  XBRL Taxonomy Extension Definition Linkbase Document

101.LAB**

  XBRL Taxonomy Extension Label Linkbase Document

101.PRE**

  XBRL Taxonomy Extension Presentation Linkbase Document

104

Cover Page Interactive Data File (formatted as Inline XBRL and Contained in Exhibit 101).

*     Previously filed

**    Filed or furnished herewith, as applicable

†     Certain confidential portions of the agreement were omitted by means of marking such portions with brackets (due to the registrant customarily and

actually treating such information as private or confidential and such omitted information not being material) pursuant to Item 601 of Regulation
S-K promulgated by the SEC. Arbutus agrees to supplementally furnish a copy of any confidential portions to the SEC upon request.

#    Management Contract or Compensatory Arrangement.

Financial Statements

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

Financial Statement Schedules

 None

Item 16.     Form 10-K Summary

    None

1

105

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 3, 2022.

SIGNATURES

ARBUTUS BIOPHARMA CORPORATION

By:

/s/ William Collier
William Collier
President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant
and in the capacities indicated on March 3, 2022.

Signatures

Capacity in Which Signed

/s/ Frank Torti, M.D.
Frank Torti, M.D.

/s/ William H. Collier
William H. Collier

/s/ David C. Hastings
David C. Hastings

/s/ Daniel Burgess
Daniel Burgess

/s/ Richard C. Henriques
Richard C. Henriques

/s/ Keith Manchester, M.D.
Keith Manchester, M.D.

/s/ Eric Venker, M.D., PharmD
Eric Venker, M.D., PharmD

/s/ James Meyers
James Meyers

/s/ Andrew Cheng, M.D., Ph. D
Andrew Cheng, M.D., Ph. D

/s/ Tram Tran, M.D.
Tram Tran, M.D.

Director (Chairman)

President and Chief Executive Officer and Director
(Principal Executive Officer)

Chief Financial Officer
(Principal Financial Officer and Principal Accounting Officer)

Director

Director

Director

Director

Director

Director

Director

106

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
DESCRIPTION OF THE REGISTRANT’S SECURITIES
REGISTERED PURSUANT TO SECTION 12 OF THE
SECURITIES EXCHANGE ACT OF 1934

Exhibit 4.1 

As of the date of the Annual Report on Form 10-K of which this exhibit forms a part, the only class of securities of Arbutus Biopharma Corporation
(“we,” “us” and “our”) registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is our common shares,
without par value.

CAPITAL STOCK

The  following  description  of  our  capital  stock  summarizes  provisions  of  our  Notice  of  Articles  and  Articles,  as  amended,  or  our  Articles,  the
Investment Canada Act (Canada), the Competition Act (Canada) and the Business Corporations Act (British Columbia). The following description does not
purport to be complete and is subject to, and qualified in its entirety by, our Articles, which are incorporated by reference as exhibits to the Annual Report
on  Form  10-K  of  which  this  exhibit  is  a  part,  and  to  the  applicable  provisions  of  the  Investment  Canada  Act,  the  Competition  Act  and  the  Business
Corporations Act.

Authorized and Outstanding Shares

Our authorized share capital consists of (i) an unlimited number of common shares, without par value, (ii) an unlimited number of preferred shares, without
par  value,  and  (iii)  1,164,000  Series  A  Participating  Convertible  Preferred  Shares.  As  of  March  3,  2022  there  were  (a)  148,641,736  common  shares
outstanding and (b) 0 Series A Participating Convertible Preferred Shares outstanding. None of our common shares or preferred shares are held by us or on
behalf of us.

Voting Rights

The holders of our common shares are entitled to receive notice of any meeting of our shareholders and to attend and vote thereat, except those meetings at
which only the holders of shares of another class or of a particular series are entitled to vote. Each common share entitles its holder to one vote. There are
no cumulative voting rights.

Dividends

Subject to the rights of the holders of preferred shares, the holders of common shares are entitled to receive on a pro rata basis such dividends as our Board
of Directors may declare out of funds legally available for payment of dividends.

Liquidation Rights

In the event of the dissolution, liquidation, winding-up or other distribution of our assets, those holders are entitled to receive on a pro rata basis all of our
assets remaining after payment of all of our liabilities, subject to the rights of holders of preferred shares.

Other Rights and Preferences.

The terms of our common shares do not include any preemptive, conversion or subscription rights, nor any redemption or sinking fund provisions. The
common shares are not subject to future calls or assessments by us.

Limitations to Control due to Certain Provisions of Canadian and British Columbian Law and our Articles

Unless such offer constitutes an exempt transaction, an offer made by a person, or an offeror, to acquire outstanding shares of a Canadian entity that, when
aggregated with the offeror’s holdings (and those of persons or companies acting jointly with the offeror), would constitute 20% or more of the outstanding
shares,  would  be  subject  to  the  take-over  provisions  of  Canadian  securities  laws.  The  foregoing  is  a  limited  and  general  summary  of  certain  aspects  of
applicable securities law in the provinces and territories of Canada, all in effect as of the date hereof.

In addition to the take-over bid requirements noted above, the acquisition of shares may trigger the application of additional statutory regimes including
amongst others, the Investment Canada Act (Canada) and the Competition Act (Canada).

As well, under the Business Corporations Act (British Columbia), unless otherwise stated in our Articles, certain corporate actions require the approval of a
special majority of shareholders, meaning holders of shares representing 66 2/3% of those votes cast in respect of a shareholder vote addressing such
matter. Those items requiring the approval of a special majority generally relate to fundamental changes with respect to our business, and include amongst
others, resolutions: (i) removing a

director prior to the expiry of his or her term; (ii) altering our Articles, (iii) approving an amalgamation; (iv) approving a plan of arrangement; and (v)
providing for a sale of all or substantially all of our assets.

The Nasdaq Global Select Market

Our common shares are listed on the Nasdaq Global Select Market under the symbol “ABUS.”

Transfer Agent and Registrar

The transfer agent and registrar for our common shares is AST Trust Company (Canada).

Exhibit 10.4

INDEMNITY AGREEMENT

THIS AGREEMENT, having an effective date of ____________ (“Effective Date”), is entered into BY and BETWEEN:

ARBUTUS BIOPHARMA CORPORATION, a company duly incorporated under the laws of the
Province of British Columbia, and having an office at 701 Veterans Circle, Warminster, PA 18974

(the “Indemnitor”)

AND:

_________[insert name]____________, with an address c/o 701 Veterans Circle, Warminster, PA
18974 USA

(the “Indemnitee”)

WHEREAS:

(A)

(B)

the Indemnitor has requested the Indemnitee to act as a director or officer of the Indemnitor and may ask the Indemnitee
to act in a similar capacity with affiliates of the Indemnitor; and

the Indemnitee has agreed, subject to the granting of the indemnities and releases herein provided for, to act as a director
or officer of the Indemnitor and act in a similar capacity with affiliates of the Indemnitor if requested;

NOW THEREFORE in consideration of these premises, the mutual covenants and agreements herein contained and other good
and valuable consideration, the receipt and sufficiency of which is acknowledged by each of the parties hereto, the parties hereto
covenant and agree as set forth below.

1.

INDEMNITY

Subject  to  §1.2,  and  §2.6(b)  below  the  Indemnitor  shall  indemnify  and  save  harmless  the  Indemnitee,  and  the
1.1
Indemnitee’s successors, heirs and personal representatives (together with the Indemnitee, the “Indemnified Parties”) against and
from:

any and all actions and claims, whether current, threatened, pending or completed, whether civil, criminal, quasi-
(a)
criminal  or  administrative,  of  every  nature  and  kind  whatsoever  which  may  be  brought  or  made  by  any  person,  firm,
corporation  or  government,  or  by  any  governmental  department,  body,  commission,  board,  bureau,  agency  or
instrumentality against the Indemnified Parties in connection with the Indemnitee’s execution of the duties of his office
held as a director or officer with the Indemnitor or any affiliate of the Indemnitor from time to time;

(b)
any and all costs, damages, charges, expenses (including legal fees and disbursements, on a full indemnity basis),
fines, liabilities (statutory or otherwise), losses and penalties which the Indemnitee may sustain, incur or be liable for in
consequence of his acting as a director or officer of the Indemnitor or any affiliate of the Indemnitor from

- 2 -

time to time, whether sustained or incurred by reason of the Indemnitee’s negligence, default, breach of duty, breach of
trust, failure to exercise due diligence or otherwise in relation to the Indemnitor or any of its affiliates from time to time,
or any of their respective affairs;

without  in  any  way  limiting  the  generality  of  the  foregoing,  any  and  all  costs,  damages,  charges,  expenses
(c)
(including  legal  fees  and  disbursements  on  a  full  indemnity  basis),  fines,  liabilities,  losses  and  penalties  which  the
Indemnified Parties may sustain, incur or be liable for as a result of or arising by operation of statute and incurred by or
imposed upon the Indemnified Parties in relation to the affairs of the Company in the Indemnitee’s capacity as director or
officer, including but not limited to, all statutory obligations to creditors, employees, suppliers, contractors, subcontractors
and any government or agency or division of any government, whether federal, provincial, state, regional or municipal
whether existing at the date hereof or incurred hereafter; and

(d)
without  in  any  way  limiting  the  generality  of  the  foregoing,  the  Indemnitor  agrees  that  should  any  payment  or
reimbursement made pursuant to this Agreement, including without limitation the payment of insurance premiums or any
payment  made  by  an  insurer  under  an  insurance  policy,  be  deemed  to  constitute  a  taxable  benefit  or  otherwise  be  or
become subject to any tax or levy upon the Indemnified Parties, then the Indemnitor shall pay such amount as may be
necessary  to  ensure  that  the  amount  received  by  or  on  behalf  of  the  Indemnified  Parties,  after  the  payment  of  or
withholding for such tax, fully reimburses the Indemnified Parties for the actual cost, expense or liability incurred by or
on his or her behalf.

1.2
Indemnified Parties against and from any action, claim, cost, damage, charge, expense, fine, liability, loss or penalty:

Notwithstanding  the  provisions  of  §1.1,  the  Indemnitor  shall  not  be  obligated  to  indemnify  or  save  harmless  the

if in respect thereof the Indemnitee failed to act honestly and in good faith with a view to the best interests of the

(a)
Indemnitor or its affiliate as the case may be;

in the case of a criminal or administrative action or proceeding, if the Indemnitee did not have reasonable grounds

(b)
for believing that his conduct was lawful;

arising out of any act, error or omission of the Indemnitee that is fraudulent or malicious and that is committed by

(c)
the Indemnitee with actual fraudulent or malicious purpose or intent; or

for which he is entitled to indemnity pursuant to any valid and collectible policy of insurance, to the extent of such
(d)
insurance. Where partial indemnity is provided by such policy of insurance, the obligation of the Indemnitor under §1.1
shall continue in effect but be limited to that portion of the liability for which indemnity is not provided by such policy.

The determination of any claim by judgment, order, settlement or conviction, or upon a plea of “nolo contendere” or its
1.3
equivalent, will not, of itself, create any presumption for the purposes of this Agreement that the Indemnitee did not act honestly
and in good faith with a view to the best interests of the Indemnitor or with the care, diligence, and skill of a reasonably prudent
person or, in the case of a criminal or administrative action or proceeding, that he did not have reasonable grounds for believing
that  his  conduct  was  lawful  (unless  the  judgment  or  order  of  a  court  specifically  finds  otherwise)  or  that  the  Indemnitee  had
committed wilful neglect or gross default.

- 3 -

2.

DEFENSE

2.1

For the purposes of this section 2:

“Action”  means  any  action,  inquiry,  investigation,  suit  or  other  proceeding  before  a  court  or  other  tribunal  in  which  a
Claim is brought, made or advanced by or against the Indemnitee;

“Claim”  means  any  allegation  of  charge,  claim,  cost,  damage,  expense,  fine,  liability,  loss  or  penalty  contemplated  by
§1.1;

“Judgment”  means  an  award  of  damages  or  other  monetary  compensation  made  in  an  Action  or  any  amounts  the
Indemnitee  is  ordered  to  pay  by  any  court  or  other  tribunal  or  any  government,  governmental  department,  body,
commission, board, bureau, agency or instrumentality having proper jurisdiction as a result of any Claim brought, made
or advanced of or against the Indemnitee; and

“Settlement” means an agreement to compromise a Claim or an Action.

Upon the Indemnitee becoming aware of any pending or threatened Claim or Action, the Indemnitee must provide written

2.2
notice of it to the Indemnitor as soon as is reasonably practicable.

2.3
in the circumstances and shall pay all costs of such investigation.

The Indemnitor shall have full power and authority to conduct such investigation of each Claim as is reasonably necessary

2.4
Subject  to  this  subsection  and  §2.6(b),  the  Indemnitor  shall  defend,  on  behalf  of  the  Indemnitee,  any  Claim  or  Action,
even if the basis for the Claim or Action is groundless, false or fraudulent. If the Indemnitor has reasonable grounds for believing
that any of the circumstances described in §1.2 apply to the Claim or Action, then the Indemnitor, upon giving the Indemnitee
written  notice  of  its  belief  and  the  grounds  therefore,  may  refuse  to  so  defend  the  Claim  or  Action,  but  such  refusal  shall  not
relieve the Indemnitor from any of its obligations of indemnity hereunder if it has determined that none of the provisions of §1.2
apply to the Claim or Action.

2.5
counsel to be engaged by the Indemnitor in fulfillment of its obligation to defend a Claim or Action, pursuant to §2.4.

The Indemnitor shall consult with and pay reasonable heed to the Indemnitee concerning the appointment of any defence

2.6 With respect to a Claim or Action for which the Indemnitor is obliged to indemnify the Indemnitee hereunder:

(a)
the  Indemnitor  may  conduct  negotiations  towards  a  Settlement  and,  with  the  written  consent  of  the  Indemnitee
(which the Indemnitee agrees not to unreasonably withhold), the Indemnitor may make such Settlement as it (in its sole
judgment)  deems  appropriate  or  expedient  in  the  circumstances,  provided,  however,  that  the  Indemnitee  shall  not  be
required, as part of any proposed Settlement, to admit liability or agree to indemnify the Indemnitor in respect of, or make
contribution to, any compensation or other payment for which provision is made by such Settlement; and

if the Indemnitee fails to give his consent to the terms of a proposed Settlement which is otherwise acceptable to
(b)
the Indemnitor and the claimant, the Indemnitor may require the Indemnitee to negotiate or defend the Claim or Action
independently of the Indemnitor and in such event any amount recovered by such claimant in excess of the

- 4 -

amount for which Settlement could have been made by the Indemnitor, shall not be recoverable under this Indemnity, it
being further agreed by the parties that the Indemnitor shall only be responsible for legal fees and costs up to the time at
which such Settlement could have been made.

The Indemnitor shall have the right to negotiate a Settlement in respect of any Claim or Action which is founded upon
2.7
any of the acts specified in §1.2. In the event that the Indemnitor negotiates a Settlement in respect of any of the acts specified in
§1.2, the Indemnitee shall pay any compensation or other payment for which provision is made under the Settlement and shall not
seek indemnity or contribution from the Indemnitor, within 60 days of the Indemnitor making demand therefor, all fees, costs and
expenses (including legal fees and disbursements on a full indemnity basis) which result from the defence of the Claim or the
Action  in  respect  of  which  the  Settlement  was  made,  including  the  cost  of  any  investigation  undertaken  by  the  Indemnitor  in
connection therewith, to the date the Settlement was made.

2.8
The Indemnitor shall pay any Judgment which may be given against the Indemnitee unless any of the circumstances set
out in §1.2 applies to the Action in respect of which the Judgment is given or unless and to the extent the Indemnitee is otherwise
entitled  to  indemnity  under  the  policy  of  insurance  as  contemplated  by  §1.2(d)  in  either  case,  the  Indemnitee  shall  pay  to  the
Indemnitor, within 60 days of the Indemnitor making demand therefore, all, fees, costs and expenses (including legal fees and
disbursements  on  a  full  indemnity  basis)  which  result  from  the  defence  and  appeal  of  the  Action,  including  the  costs  of  any
investigation undertaken by the Indemnitor in connection with the Action.

2.9
Upon  the  request  of  the  Indemnitee  and  subject  to  the  restrictions  set  out  in  the  Business  Corporations  Act  (British
Columbia),  the  Indemnitor  shall  pay  the  expenses  of  the  Indemnitee  incurred  in  relation  to  a  Claim  or  an  Action  indemnified
hereunder,  provided  the  Indemnitee  hereby  gives  an  undertaking  to  repay  such  expenses  if  it  is  finally  determined  that  such
payments are not indemnifiable under this agreement or prohibited by the Business Corporations Act (British Columbia).

3.

GENERAL

Nothing herein contained shall in any way affect the Indemnitee’s right to resign from his position as director or officer of

3.1
the Indemnitor at any time.

3.2
officer of the Indemnitor, the termination of this Agreement, and shall continue in full force and effect thereafter.

The  indemnity  and  release  herein  provided  for  shall  survive  the  termination  of  the  Indemnitee’s  position  as  director  or

This Agreement supersedes all prior agreements between the parties with respect to its subject matter. Notwithstanding
3.3
the  forgoing,  nothing  in  this  Agreement  shall  be  deemed  to  diminish  or  otherwise  restrict  an  Indemnified  Party’s  right  to
indemnification under any provision of the Indemnitor’s articles or under applicable corporate law.

3.4

Unless stated otherwise, all monies to be paid hereunder shall be paid within 10 days of becoming payable.

3.5
The Indemnitee acknowledges that he has been advised to obtain independent legal advice with respect to entering into
this Agreement, that he has obtained such independent legal advice or has expressly waived such advice, and that he is entering
into this Agreement with full knowledge of the contents hereof, of his own free will and with full capacity and authority to do so.

- 5 -

3.6
If  any  provision  of  this  Agreement  is  determined  to  be  invalid  or  unenforceable  in  whole  or  in  part,  such  invalidity  or
unenforceability  shall  attach  only  to  such  provision  or  part  thereof  and  the  remaining  part  of  such  provision  and  all  other
provisions hereof shall continue in full force and effect. The parties hereto agree to negotiate in good faith to agree to a substitute
provision  which  shall  be  as  close  as  possible  to  the  intention  of  any  invalid  or  unenforceable  provision  as  may  be  valid  or
enforceable.  The  invalidity  or  unenforceability  of  any  provision  in  any  particular  jurisdiction  shall  not  affect  its  validity  or
enforceability in any other jurisdiction where it is valid or enforceable.

Each party hereto agrees to do all such things and take all such actions as may be necessary or desirable to give full force

3.7
and effect to the matters contemplated by this Agreement.

3.8
administrators, legal representatives, successors and permitted assigns.

This Agreement shall enure to the benefit of and be binding upon the parties hereto and their respective heirs, executors,

3.9

Time shall be of the essence of this Agreement.

3.10
This Agreement and the application or interpretation hereof shall be governed exclusively by its terms and by the laws of
the Province of British Columbia and the laws of Canada applicable therein and the parties hereto hereby irrevocably attorn to the
jurisdiction of the courts of the Province of British Columbia.

IN WITNESS WHEREOF parties hereto have duly executed this Agreement as of the date first written above.

ARBUTUS BIOPHARMA CORPORATION

Per:        
    Authorized Signatory

- 6 -

)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)

Signed, Sealed and Delivered by ________[insert
name]__________ in the presence of:

Witness (Signature)

Name (please print)

Address

City, Province

Occupation

[insert name and sign above]

    
    
    
    
    
    
- 7 -

Schedule to Exhibit 10.4

The following directors and executive officers are parties to an Indemnity Agreement with the Company, each of which are
substantially identical in all material respects to the representative Indemnity Agreement filed herewith as Exhibit 10.4 except as
to the name of the signatory and the effective date of each signatory’s Indemnity Agreement. The name of each signatory to the
Indemnity Agreement is set forth below. The actual Indemnity Agreements are omitted pursuant to Instruction 2 to Item 601 of
Regulation S-K.

INDEMNITEE

William H. Collier
David C. Hastings
Michael J. McElhaugh
Gaston Picchio PhD
Michael J. Sofia PhD
Elizabeth Howard PhD, JD

Frank Torti, MD
James Meyers
Daniel Burgess
Richard C. Henriques
Keith Manchester MD
Eric Venker MD, Pharm D
Andrew Cheng MD, PhD
Tram Tran, MD

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

Exhibit 10.41

TECHNOLOGY TRANSFER AND EXCLUSIVE LICENSE AGREEMENT

between

Arbutus Biopharma Corporation

and

Qilu Pharmaceutical Co., Ltd.

December 13, 2021

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

TABLE OF CONTENTS

Page

ARTICLE 1 DEFINITIONS    1

ARTICLE 2 LICENSE    17

2.1    License Grant to Qilu    17
2.2    Right of First Negotiation Granted to Qilu    18
2.3    Right to Sublicense.    18
2.4    Right to Subcontract    19
2.5    Technology Transfer    19
2.6    No Implied Licenses    19
ARTICLE 3 GOVERNANCE    20
3.1    Alliance Managers    20
3.2    Joint Steering Committee    20
3.3    Membership    21
3.4    Meetings; Reports    21
3.5    Decision-Making; Escalation to Executive Officers    21

ARTICLE 4 DEVELOPMENT AND REGULATORY MATTERS    22

4.1    Development Obligations    22
4.2    Development Reports    25
4.3    Regulatory Activities    25
4.4    Right of Reference and Use    27
4.5    Data Exchange and Use    27
4.6    Adverse Events Reporting    27
4.7    No Harmful Actions    28
4.8    Notice of Regulatory Action    28
4.9    Arbutus Support    28

ARTICLE 5 MANUFACTURE AND SUPPLY    29

5.1    Supply Obligations    29
5.2    Clinical Supply Agreement    30
5.3    Commercial Supply Agreement    30
5.4    Supply to Arbutus    30
5.5    Manufacturing Technology Transfer.    30
5.6    Transfer of the Arbutus Materials    32
ARTICLE 6 COMMERCIALIZATION    32
6.1    Commercialization Obligations    32
6.2    Commercialization Reports    33
6.3    Licensed Product Trademarks    33

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

i

6.4    No Other Trademark Rights    34
6.5    Diversion    34

ARTICLE 7 PAYMENTS    35
7.1    Upfront Payment    35
7.2    Development and Regulatory Milestones    35
7.3    Manufacturing Technology Transfer Completion Payment    36
7.4    Sales Milestones    36
7.5    Royalty Payments to Arbutus    37
7.6    Taxes    39
7.7    Financial Audits    40
7.8    Form of Payment    40

ARTICLE 8 CONFIDENTIALITY; PUBLICATION    41

8.1    Confidential Information    41
8.2    Non-Disclosure and Non-Use Obligation    42
8.3    Return of Confidential Information    42
8.4    Exemption    42
8.5    Permitted Disclosures    42
8.6    Disclosure of Agreement    43
8.7    Publicity; Use of Name and Logo    44
8.8    Publications    44
8.9    Engaging Individuals    44
8.10    Survival    44

ARTICLE 9 REPRESENTATIONS, WARRANTIES, AND COVENANTS    45

9.1    Representations and Warranties of Each Party    45
9.2    Representations and Warranties of Arbutus    45
9.3    Debarment; Exclusion; Disqualification    47
9.4    Covenants of Arbutus    47
9.5    Covenants of Qilu    48
9.6    Compliance with Anti-Corruption Laws    49
9.7    Compliance with Law    50
9.8    Data Protection    50
9.9    NO OTHER WARRANTIES    51
ARTICLE 10 INDEMNIFICATION    51

10.1    By Qilu    51
10.2    By Arbutus    51
10.3    Indemnification Procedure    52
10.4    Mitigation of Loss    53
10.5    Limitation of Liability    53

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

ii

10.6    Insurance    53

ARTICLE 11 INTELLECTUAL PROPERTY    53

11.1    Ownership    53
11.2    Patent Prosecution    55
11.3    Patent Enforcement    56
11.4    Infringement of Third Party Rights    57
11.5    Qilu Territory Trademarks    59
11.6    Common Interest Agreement    60
11.7    Registration Obligations    60

ARTICLE 12 TERMS AND TERMINATION    60

12.1    Term    60
12.2    Termination    61
12.3    Effect of Termination    62
12.4    Rights in Insolvency    64
12.5    Accrued Rights    64
12.6    Survival    64
12.7    Certain Additional Remedies of Qilu in Lieu of Termination    64

ARTICLE 13 MISCELLANEOUS    64

13.1    Force Majeure    64
13.2    Assignment    65
13.3    Severability    65
13.4    Notices    65
13.5    Governing Law    66
13.6    Internal Resolution    66
13.7    Binding Arbitration    66
13.8    Headings    67
13.9    Independent Contractors    67
13.10    Waiver    68
13.11    Waiver of Rule of Construction    68
13.12    Cumulative Remedies; Recovery of Damages    68
13.13    Business Day Requirements    68
13.14    Further Actions    68
13.15    Construction    68
13.16    Entire Agreement; Amendments    69
13.17    Counterparts    69

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

iii

TECHNOLOGY TRANSFER AND EXCLUSIVE LICENSE AGREEMENT

This Technology Transfer and Exclusive License Agreement (this “Agreement”) is made as of December 13, 2021 (the
“Execution Date”), by and between Arbutus Biopharma Corporation, a British Columbia corporation (“Arbutus”), having a
place  of  business  at  701  Veterans  Circle,  Warminster,  PA  18974,  USA,  and  Qilu  Pharmaceutical  Co.,  Ltd.,  a  company
established pursuant to applicable laws and regulations of the People’s Republic of China (“Qilu”), having a place of business at
No.  8888  Lvyou  Road,  Jinan,  Shandong  250104  China.  Arbutus  and  Qilu  are  referred  to  in  this  Agreement  individually  as  a
“Party” and collectively as the “Parties.”

Recitals

Whereas,  Arbutus,  a  publicly-traded  clinical-stage  biopharmaceutical  company  primarily  focused  on  discovering,
developing and commercializing a cure for people with chronic hepatitis B virus (“HBV”) infection, Controls (as defined below)
the intellectual property and other rights related to AB-729, a subcutaneously-delivered RNAi therapeutic targeted to hepatocytes
using Arbutus’ novel covalently conjugated GalNAc delivery technology that is currently being developed for the treatment of
HBV; and

Whereas, Qilu is interested in obtaining an exclusive license under such intellectual property and other rights to Exploit
Licensed Products in the Field in the Territory as defined below, and Arbutus is willing to grant such an exclusive license to Qilu,
subject to the terms and conditions set forth herein.

Now, Therefore, in consideration of the foregoing premises and the covenants contained herein, the Parties hereby agree

as follows:

ARTICLE 1
DEFINITIONS

Unless specifically set forth to the contrary herein, the following terms, whether used in the singular or plural, shall have

the respective meanings set forth below:

1.1

“Accounting Standards”  means,  (a)  with  respect  to  Arbutus,  its  Affiliates  and  Third  Party  Licensees,  generally
accepted  accounting  principles  as  practiced  in  the  United  States  (“US  GAAP”);  (b)  with  respect  to  Qilu  and  its  Affiliates,
Accounting  Standards  for  Business  Enterprises  as  promulgated  by  Chinese  Accounting  Standards  Committee  of  Ministry  of
Finance of PRC or its successor organization (“China GAAP”);  or  (c)  with  respect  to  Sublicensees,  US  GAAP,  China  GAAP,
International Financial Reporting Standards, or other generally accepted accounting principles as adopted by such Sublicensees
under  the  Applicable  Laws  of  the  respective  jurisdictions  of  their  incorporation,  as  applicable,  in  each  case  of  (a)-(c),  which
principles or standards are currently used at the relevant time and consistently applied by the applicable Person.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

1

1.2

“Acquiring Entity” means a Third Party (the “Acquiror”) that acquires a Party (and is therefore deemed to be an
Affiliate of such Party) through a Change of Control, together with any Affiliates of such Acquiror existing immediately prior to
the consummation of the Change of Control. For purposes of clarity, an “Acquiring Entity” of a Party shall exclude (a) the Party
and all of its Affiliates existing immediately prior to the consummation of the Change of Control and (b) any Person that becomes
an Affiliate of the Acquiror following the consummation of the Change of Control, and not as a result of the Change of Control.

1.3

1.4

“Acquiror” has the meaning set forth in Section 1.2.

“Additional Cure Period” has the meaning set forth in Section 12.2(b)(ii).

1.5

“Additional  Compound”  means  any  RNAi  compound  (other  than  the  Licensed  Compound)  (i)  which  contains
AB-729 [***], and (ii) the Development, Manufacture, use or sale of which would infringe any Valid Claim within the Arbutus
Patents but for ownership thereof or a license granted thereto.

1.6

“Additional Product” means any drug substance materials and pharmaceutical product containing an Additional

Compound, in all forms, presentations, formulations and dosage forms.

1.7

“Affiliate” means, with respect to any Person, any entity controlling, controlled by or under common control with
such first Person, at the time that the determination of affiliation is made and for as long as such control exists. For the purpose of
this definition only, “control” (including, with correlative meaning, the terms “controlled by” and “under the common control”)
means  (a)  direct  or  indirect  ownership  of  fifty  percent  (50%)  or  more  of  the  stock  or  shares  having  the  right  to  vote  for  the
election of directors of such Person (or if the jurisdiction where such Person is domiciled prohibits foreign ownership of such
entity, the maximum foreign ownership interest permitted under such Applicable Laws; provided, however, that such ownership
interest provides actual control over such Person), (b) status as a general partner in any partnership, or (c) the possession, directly
or indirectly, of the power to direct, or cause the direction of, the management or policies of such Person, whether through the
ownership of voting securities, by contract or otherwise.

1.8

1.9

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

“Alliance Manager” has the meaning set forth in Section 3.1.

1.10

“Annual Net Sales” means total Net Sales by Qilu, its Affiliates and Sublicensees in the Territory of all Licensed

Products in a particular Calendar Year, calculated in accordance with Accounting Standards consistently applied.

1.11

“Anti-Corruption Laws” has the meaning set forth in Section 9.6(a)(i).

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

2

1.12

“Applicable Laws” means individually and collectively, any federal, state, local, national and supra-national laws,
treaties, statutes, ordinances, rules and regulations, including any rules, regulations, guidance, guidelines or requirements having
the  binding  effect  of  law  of  national  securities  exchanges,  automated  quotation  systems  or  securities  listing  organizations,
Regulatory  Authorities,  courts,  tribunals,  Governmental  Authorities  other  than  Regulatory  Authorities,  legislative  bodies  and
commissions that are in effect from time to time during the Term and applicable to a particular activity hereunder. Applicable
Laws shall include cGCP, cGLP, cGMP and cGVP, as defined below.

1.13

“Applicable Territory”  means  (a)  with  respect  to  Qilu,  the  Territory,  and  (b)  with  respect  to  Arbutus,  the  ROW

Territory.

1.14

“Approval”  means  any  consent,  authorization,  order,  confirmation,  qualification,  permission,  certification,
approval,  record-filing,  registration,  license,  permit,  designation  and/or  declaration  or  other  act  by  a  Governmental  Authority
approving or consenting to a request or application.

1.15

“Arbutus” has the meaning set forth in the Preamble.

1.16

“Arbutus Indemnitees” has the meaning set forth in Section 10.1.

1.17

“Arbutus IP” means the Arbutus Know-How and the Arbutus Patents.

1.18

“Arbutus Know-How” means all Know-How Controlled by Arbutus or its Affiliates as of the License Effective
Date or that comes into the Control of Arbutus or its Affiliates at any time during the Term, including Arbutus Materials and any
Know-How  included  within  the  Arbutus  New  IP  and  the  Joint  New  IP,  that  is  necessary  or  reasonably  useful  to  Exploit  the
Licensed Compound or the Licensed Products in the Field in the Territory.

1.19

“Arbutus Materials” means any materials included within the Arbutus Know-How to be provided by Arbutus to

Qilu that are set forth on Exhibit 1.19.

1.20

“Arbutus New IP” has the meaning set forth in Section 11.1(b)(ii).

1.21

“Arbutus  Patents”  means  all  Patent  Rights  that  are  Controlled  by  Arbutus  or  its  Affiliates  as  of  the  License
Effective Date or that come into the Control of Arbutus or its Affiliates at any time during the Term, including any Patent Rights
included within the Arbutus New IP and the Joint New IP, that Cover the Licensed Compound or Licensed Products (including
composition  of  matter  and  methods  of  using  or  making  the  Licensed  Compound  or  Licensed  Products),  or  are  otherwise
necessary or reasonably useful to Exploit the Licensed Compound or Licensed Products in the Field in the Territory. The Arbutus
Patents as of the Execution Date are set forth in Exhibit 1.21, which shall be updated by Arbutus on a quarterly basis.

1.22

“Arbutus Support” has the meaning set forth in Section 4.9.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

3

1.23

“Arbutus Support Cap” has the meaning set forth in Section 4.9.

1.24

“Arbutus Territory Regulatory Documents” has the meaning set forth in Section 4.3(a).

1.25

“Arbutus Unlicensed Compounds” means any proprietary compounds or therapeutic agents owned or controlled

by Arbutus or its Affiliates other than AB-729.

1.26

“Auditor” has the meaning set forth in Section 7.7.

1.27
Bankruptcy Law.

“Bankruptcy  Code”  means  Title  11,  U.S.  Code  or  foreign  equivalent  laws,  including  the  PRC  Enterprise

1.28

“Batch  Records”  means  the  final  executed  batch  production  records  for  a  single  batch  of  Licensed  Compound

Manufactured for use by Arbutus in Clinical Trials.

1.29

“Biosimilar Product” means, with respect to a Licensed Product in a Relevant Region, any product (including a
“generic  product,”  “biogeneric,”  “follow-on  biologic,”  “follow-on  biological  product,”  “follow-on  protein  product,”  “similar
biological  medicinal  product,”  or  “biosimilar  product”)  (a)  approved  by  the  relevant  Regulatory  Authority  in  such  Relevant
Region  based  on  a  determination  by  such  Regulatory  Authority  or  by  Applicable  Law  that  such  product  is  “similar,”
“comparable,”  “interchangeable,”  “bioequivalent,”  or  “biosimilar”  to  such  Licensed  Product  in  such  Relevant  Region,  and  (b)
that is (i) sold in the same Relevant Region (or is commercially available in the same Relevant Region via import from another
country  or  region)  as  such  Licensed  Product  by  any  Third  Party  that  is  not  a  Sublicensee,  and  (ii)  not  Manufactured  by  or  on
behalf of Qilu or any of its Affiliates or Sublicensees.

1.30

“Business Day” means a day other than a Saturday, Sunday or a day on which banking institutions in Philadelphia,

Pennsylvania or in the Territory are required by Applicable Laws to remain closed.

1.31

“Calendar Quarter” means the respective periods of three (3) consecutive calendar months ending on March 31,

June 30, September 30 and December 31.

1.32

“Calendar Year” means each twelve (12) month period commencing on January 1.

1.33

“CDE” means the Chinese Center for Drug Evaluation of the NMPA, or any successor entity thereto.

1.34

“cGCP” means current Good Clinical Practices as defined in Parts 50, 56 and 312 of Title 22 of the U.S. Code of
Federal  Regulations,  as  may  be  amended  from  time  to  time,  or  any  successor  thereto  or  foreign  equivalents  thereof,  including
Good  Clinical  Practice  for  Drugs  (i.e.  药 物 临 床 试 验 质 量 管 理 规 范 )  promulgated  by  NMPA  and  the  National  Health
Commission  effective  as  of  July  1,  2020,  together  with  any  guidelines  and/or  implementation  rules  issued  by  NMPA  in
connection therewith, in each case as amended from time to time.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

4

1.35

“cGLP” means current Good Laboratory Practices as defined in Part 58 of Title 21 of the U.S. Code of Federal

Regulations, as may be amended from time to time, or any successor thereto and foreign equivalents thereof.

1.36

“cGMP”  means  current  Good  Manufacturing  Practices  as  defined  in  Parts  210  and  211  of  Title  21  of  the  U.S.
Code of Federal Regulations, as may be amended from time to time, or any successor thereto and foreign equivalents thereof,
including Good Manufacturing Practice for Drugs (i.e.药品生产质量管理规范) promulgated by the Ministry of Health of China
effective as of March 1, 2011, as may be amended from time to time.

1.37 “cGVP”  means  current  Good  Pharmacovigilance  Practices  applicable 

the  conduct  of  specific
pharmacovigilance  activities  by  a  Person  in  the  European  Union  based  upon  Article  108a  of  Directive  2001/83/EC  (until
repealed  in  its  entirety),  536/2014/EU,  by  the  European  Medicines  Agency,  all  other  applicable  rules,  regulations,  orders,
guidances,  guidelines  (including  those  issued  by  the  International  Council  on  Harmonization  or  other  industry  or
nongovernmental standards), in the United States pursuant to the Federal Food, Drug, and Cosmetics Act, as may be amended
and  supplemented  from  time  to  time,  and  implementing  regulations,  including  such  extraterritorial  jurisdiction  as  may  be
applicable to adverse events or experience or medical device reports required to be reported to the USFDA (including access to
original data as may be requested from time to time by USFDA), the reporting and data management and storage requirements
of the World Health Organisation and the World Health Organisation Collaborating Centre for International Drug Monitoring
Centre  located  in  Uppsala  Sweden  (Uppsala  Monitoring  Centre)  and  equivalent  or  comparable  non-United  States  and  non-
European Union regulations, rules, orders, guidances and standards, as applicable, including Good Pharmacovigilance Practices
(药物警戒质量管理规范) promulgated by NMPA and effective as of December 1, 2021, in each case as may be amended from
time to time.

to 

1.38

“Change  of  Control”  means,  with  respect  to  a  Party,  any  of  the  following:  (a)  the  sale  or  disposition  of  all  or
substantially all of the assets of such Party or its direct or indirect controlling Affiliate to a Third Party, other than to a Person of
which more than fifty percent (50%) of the voting capital stock are owned after such sale or disposition by the Persons that were
shareholders of such Party or its direct or indirect controlling Affiliate (in either case, whether directly or indirectly through any
other Person) immediately prior to such transaction; or (b) (i) the acquisition by a Third Party, alone or together with any of its
Affiliates, of more than fifty percent (50%) of the outstanding shares of voting capital stock of such Party or its direct or indirect
controlling Affiliate, or (ii) the acquisition, merger or consolidation of such Party or its direct or indirect controlling Affiliate with
or into another Person, other than, in the case of this clause (b), an acquisition or a merger or consolidation of such Party or its
controlling Affiliate in which the holders of shares of voting capital stock of such Party or its controlling Affiliate, as the case
may be, immediately prior to such acquisition, merger or consolidation will beneficially own, directly or indirectly, at least fifty
percent (50%) of the shares of voting capital stock of the acquiring Third Party or the surviving corporation in such acquisition,
merger or consolidation, as the case may be, immediately after such acquisition, merger or consolidation. Notwithstanding the
foregoing,  any  transaction  or  series  of  transactions  effected  for  the  sole  purpose  of  changing  the  form  or  jurisdiction  of
organization of such Party will not be deemed a “Change of Control” for purposes of this Agreement.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

5

1.39

“China” or “PRC”  means,  for  the  purpose  of  this  Agreement,  the  People’s  Republic  of  China,  excluding  Hong

Kong, Macau and Taiwan.

1.40

“China GAAP” has the meaning set forth in Section 1.1.

1.41

“Clinical Supply Agreement” has the meaning set forth in Section 5.2.

1.42

“Clinical Trial” means any clinical trial in humans of a pharmaceutical or biological compound or product.

1.43

“CMO” means a Third Party contract manufacturing organization.

1.44

“Combination Product” means a Licensed Product that, in addition to containing the Licensed Compound as an
active pharmaceutical ingredient, is co-formulated with at least one other active pharmaceutical ingredient or therapeutic agent
that is not the Licensed Compound (the “Other Component”).

1.45

“Commercial Supply Agreement” has the meaning set forth in Section 5.3.

1.46

“Commercialize”  or  “Commercialization”  means  to  market,  promote,  advertise,  exhibit,  distribute  (including
storage for distribution or inventory), detail, sell (including to offer for sale or contract to sell) or otherwise commercially exploit
(including to conduct pricing and reimbursement activities) a pharmaceutical or biological compound or product, or to conduct
any activities directed to any of the foregoing (including importing and exporting activities in connection therewith).

1.47

“Commercially Reasonable Efforts” means, with respect to a Party, efforts that are consistent with the efforts and
resources  commonly  used  in  the  pharmaceutical  industry  by  a  company  of  comparable  size  in  connection  with  the  research,
development  and  commercialization  of  a  pharmaceutical  product  owned  by  it  or  to  which  it  has  exclusive  rights,  with  similar
product characteristics, which is of similar market potential at a similar stage in its development or product life.

1.48

“Confidential Information” has the meaning set forth in Section 8.1.

1.49

“Control” or “Controlled” means, with respect to any Patent Rights, Know-How, other intellectual property right,
compounds,  molecules  or  Confidential  Information,  the  ability  of  a  Party  (whether  through  ownership,  license  or  sublicense
(other  than  a  license,  sublicense  or  other  right  granted  pursuant  to  this  Agreement))  to  grant  to  the  other  Party  the  licenses,
sublicenses or rights as provided herein, or to otherwise disclose or provide such intellectual property, compounds, molecules or
Confidential Information to the other Party, without violating the terms of any then-existing agreement with any Third Party at
the time such Party would be required hereunder to grant the other Party such license, sublicenses or rights as provided herein or
to otherwise disclose or provide such intellectual property, compounds, molecules or Confidential Information to the other Party.
Notwithstanding the foregoing, a Party will be deemed not to Control any intellectual property (including Patent Rights or Know-
How), compounds, physical, biological or chemical materials or Confidential Information that are owned or in-licensed by an

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

6

Acquiring Entity except (1) with respect to any such intellectual property (including Patent Rights or Know-How) arising as a
result of activities of employees or consultants of the Acquiring Entity who participate in activities or have access to Confidential
Information of either Party under this Agreement after a Change of Control; (2) to the extent that any such intellectual property
(including Patent Rights or Know-How) is included in or used in furtherance of a Party’s activities under this Agreement by the
Acquiring  Entity  or  its  Affiliates  after  a  Change  of  Control;  or  (3)  to  the  extent  that  any  such  intellectual  property  (including
Patent Rights or Know-How) is used by the acquired Party or the Acquiring Entity or their respective Affiliates to Exploit the
Licensed Compound or Licensed Products.

1.50

“Cover”  means,  with  respect  to  a  product,  technology,  process,  method  or  mode  of  administration  that,  in  the
absence  of  ownership  of  or  a  license  granted  under  a  particular  Patent  Right,  the  Manufacture,  use,  offer  for  sale,  sale  or
importation  of  such  product  or  composition  of  matter  or  the  practice  of  such  technology,  process,  method  or  mode  of
administration would infringe a claim of such Patent Right or, in the case of a claim of a Patent Right that has not yet issued,
would infringe such claim if it were to issue without change.

1.51

“CRO” means a contract research organization.

1.52

“CSO” means a contract sales organization.

1.53

“Debarred” has the meaning set forth in Section 9.3.

1.54

“Defaulting Party” has the meaning set forth in Section 12.2(b)(ii).

1.55

“Develop” or “Development” means to conduct any non-clinical, CMC or clinical drug research or development
activities, whether before or after Regulatory Approval, including drug metabolism and pharmacokinetics, translational research,
toxicology, pharmacology, test method development and stability testing, process and packaging development and improvement,
process  validation,  process  scale-up,  formulation  development,  delivery  system  development,  quality  assurance  and  quality
control  development,  statistical  analysis,  conduct  of  Clinical  Trials,  regulatory  affairs,  the  preparation  and  submission  of
regulatory filings, Clinical Trial regulatory activities, or any other activities directed towards obtaining or maintaining Regulatory
Approval of any pharmaceutical or biological compound or product. Development includes use and importation of the relevant
compound or product to conduct such Development activities. Development does not include Commercialization activities.

1.56

“Development Milestone Event” has the meaning set forth in Section 7.2.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

7

1.57

“Development Milestone Payment” has the meaning set forth in Section 7.2.

1.58

“Development Participation Right” has the meaning set forth in Section 4.1(f).

1.59

“Development Plan” has the meaning set forth in Section 4.1(b).

1.60

 “Disclosing Party” has the meaning set forth in Section 8.1.

1.61

“Disqualified” has the meaning set forth in Section 9.3.

1.62

“Dollar” or “$” means the U.S. dollar, and “$” shall be interpreted accordingly.

1.63

“Excluded” has the meaning set forth in Section 9.3.

1.64

“Execution Date” has the meaning set forth in the Preamble.

1.65

“Executive Officers” means the Chief Executive Officer of Arbutus and the Chief Executive Officer of Qilu, or

their respective designees.

1.66

“Existing  Confidentiality  Agreement”  means  that  certain  Mutual  Non-Disclosure  Agreement,  dated  May  24,

2021, between Arbutus and Qilu.

1.67

“Exploit”  or  “Exploitation”  means,  with  respect  to  any  pharmaceutical  or  biological  compound  or  product,  to
Develop, Manufacture, have Manufactured, use, Commercialize, import, export, obtain and maintain Regulatory Approvals and
applicable pricing or reimbursement approvals.

1.68

“Field” means the treatment or prevention of HBV infection.

1.69

“First Commercial Sale” means, with respect to a given Licensed Product in a Relevant Region, the first sale of
such  Licensed  Product  by  Qilu,  its  Affiliates  or  Sublicensees  in  an  arm’s  length  transaction  to  a  Third  Party  (other  than  a
Sublicensee) in such Relevant Region in exchange for cash (or some equivalent to which value can be assigned) after Regulatory
Approval for such Licensed Product has been granted in such Relevant Region.

1.70

“Generic Competition” with respect to a particular Licensed Product in a particular Relevant Region shall exist if,
during any [***], there is one or more Biosimilar Products with respect to such Licensed Product being sold in such Relevant
Region and the sales of such Biosimilar Product(s) in such Relevant Region account for [***] or more of the market share in such
Relevant Region. Market share shall be based on the aggregate market in such Relevant Region of such Licensed Product and
such  Biosimilar  Product(s)  (based  on  the  number  of  units  of  such  Licensed  Product  and  such  Biosimilar  Product(s)  in  the
aggregate  sold  in  such  Relevant  Region,  as  reported  by  a  well-known  reporting  service  agreed  between  the  Parties  acting
reasonably (e.g., IQVIA)).

1.71

“Global Trial” has the meaning set forth in Section 4.1(f).

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

8

1.72

“Global Trial Notice” has the meaning set forth in Section 4.1(f).

1.73

“Governmental  Authority”  means  any  federal,  state,  national,  provincial  or  local  government,  or  political
subdivision  thereof,  or  any  multinational  organization  or  any  authority,  agency  or  commission  entitled  to  exercise  any
administrative,  executive,  judicial,  legislative,  police,  regulatory  or  taxing  authority  or  power,  or  any  court  or  tribunal  (or  any
department, bureau or division thereof, or any governmental arbitrator or arbitral body).

1.74

“HBV” has the meaning set forth in the Recitals.

1.75

“Hong Kong” has the meaning set forth in Section 1.145.

1.76

“ICC” has the meaning set forth in Section 13.7.

1.77

“Imported Drug License” means an imported drug license (进口药品注册证) issued by the NMPA.

1.78

“IND” means any investigational new drug application filed with the USFDA pursuant to Part 312 of Title 21 of
the U.S. Code of Federal Regulations prior to beginning clinical trials in humans in the United States, or any equivalent filing in a
country or regulatory jurisdiction other than the United States with the applicable Regulatory Authority.

1.79

“Indemnification Claim Notice” has the meaning set forth in Section 10.3.

1.80

“Indemnified Party” has the meaning set forth in Section 10.3.

1.81

“Indemnifying Party” has the meaning set forth in Section 10.3.

1.82

“Initial Documentation” has the meaning set forth in Section 4.3(a).

1.83

“Insolvency Event” has the meaning set forth in Section 12.2(d).

1.84

“Invention”  means  any  invention,  discovery,  technology,  know-how,  information  or  idea,  trade  secrets,
knowledge,  methods,  processes,  practices,  formulae,  instructions,  skills,  techniques,  procedures,  experiences,  ideas,  technical
assistance, designs, drawings, assembly procedures, computer programs, specifications data and results not generally known to
the  public  (including  biological,  chemical,  pharmacological,  toxicological,  pharmaceutical,  physical  and  analytical,  preclinical,
clinical,  safety,  manufacturing,  and  quality  control  data  and  know-how,  including  study  designs  and  protocols)  in  all  cases,
whether  or  not  patentable,  in  written,  electronic  or  any  other  form,  that  is  conceived,  discovered,  developed  or  first  actually
reduced to practice by or on behalf of a Party, or by the Parties together, arising from or in the scope of activities to be conducted
under  this  Agreement,  but  excluding  any  Product  Data.  For  clarity,  Inventions  do  not  include  any  invention,  discovery,
technology,  know-how,  information  or  idea  conceived,  discovered,  developed  or  first  actually  reduced  to  practice  prior  to  the
License Effective Date, or after the License Effective Date through activities conducted by a Party outside of the purpose of this
Agreement.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

9

1.85

“Joint New IP” has the meaning set forth in Section 11.1(b)(iii).

1.86

“JSC” has the meaning set forth in Section 3.2(a).

1.87

“Know-How”  means  any  and  all  information  or  materials,  including  discoveries,  improvements,  modifications,
processes,  methods,  assays,  designs,  protocols  (including  Clinical  Trial  protocols),  formulas,  data,  inventions,  algorithms,
forecasts,  profiles,  strategies,  plans,  results,  know-how  and  trade  secrets  (in  each  case,  regardless  of  whether  patentable,
copyrightable or otherwise), but excluding any Patent Rights. For  the  avoidance  of  doubt,  “Know-How”  shall  include  Product
Data and Regulatory Documents.

1.88

“License” means the license granted by Arbutus to Qilu and its Affiliates pursuant to Section 2.1.

1.89

“Licensed Compound” means Arbutus’ proprietary HBV RNAi agent known as AB-729, having the sequence and

structure set forth on Exhibit 1.89.

1.90

“License Effective Date” has the meaning set forth in Section 12.1.

1.91

“Licensed Product” means any pharmaceutical product that contains the Licensed Compound, either alone or in
combination with one or more other active pharmaceutical ingredients or therapeutic agents, delivery systems or devices. For the
avoidance  of  doubt,  a  Licensed  Product  does  not  include  a  pharmaceutical  product  that  contains  an  Arbutus  Unlicensed
Compound.

1.92

“Licensed Product Trademarks” means the Trademark(s) used or anticipated to be used by a Party or its Affiliates
or  its  Third  Parties  Licensees  (in  the  case  of  Arbutus)  or  Sublicensees  (in  the  case  of  Qilu)  for  the  Exploitation  of  Licensed
Products in such Party’s Applicable Territory, and any registrations thereof or any pending applications relating thereto with any
Governmental Authority.

1.93

“Licensed Product-Specific Trademarks” has the meaning set forth in Section 6.3(b).

1.94

“Losses” has the meaning set forth in Section 10.1.

1.95

“MAA”  means  a  marketing  authorization  application,  new  drug  application,  biologics  license  application  or
similar  application,  as  applicable,  and  all  amendments  and  supplements  thereto,  submitted  to  the  USFDA,  NMPA,  or  any
equivalent filing in a country or regulatory jurisdiction other than the U.S. or China with the applicable Regulatory Authority, to
obtain marketing approval for a pharmaceutical or biologic product, in a country or in a group of countries, including in China, an
application for an Imported Drug License and a domestic Drug Registration Certificate.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

10

1.96

“Macau” has the meaning set forth in Section 1.145.

1.97

“Manufacture”  or  “Manufacturing”  means  to  conduct  or  have  conducted  any  activities  directed  to  producing,
making,  scaling  up,  processing,  formulating,  filling,  finishing,  packaging,  labeling,  quality  assurance  testing  and  release,
shipping,  and  storage  at  manufacturing  facilities  of  any  pharmaceutical  or  biological  compound  or  product,  or  any  component
in  bulk  form,  whether  for  Development  or
thereof  (including  production  of  drug  substance  and  drug  product, 
Commercialization).

1.98

“Manufacturing Cost” means, [***].

1.99

“Manufacturing Technology” has the meaning set forth in Section 5.5(a).

1.100 “Manufacturing Technology Transfer” has the meaning set forth in Section 5.5(a).

1.101 “Manufacturing  Technology  Transfer  Completion”  means  (a)  delivery  by  Arbutus  (or  Arbutus’  CMO(s)  on
behalf of Arbutus) to Qilu (or its permitted CMO or permitted Sublicensee) of the Manufacturing Technology in accordance with
the Manufacturing Technology Transfer Plan, and (b) using the Manufacturing Technology transferred from Arbutus, completion
of  manufacturing  of  at  least  [***]  by  Qilu  (or  its  permitted  CMO  or  permitted  Sublicensee)  at  scale  of  at  least  [***]  of  the
Licensed  Compound  that  is  Manufactured  timely  and  without  regard  to  supply  needs,  with  the  quality  of  the  manufactured
Licensed Compound meeting the specifications approved by NMPA.

1.102 “Manufacturing Technology Transfer Plan” has the meaning set forth in Section 5.5(a).

1.103 “Negotiation Period” has the meaning set forth in Section 2.2.

1.104 “Net Sales” means, with respect to a Licensed Product for any period, the total gross amount billed or invoiced on
sales of such Licensed Product during such period by Qilu, its Affiliates, or Sublicensees in the Territory to Third Parties, in bona
fide arm’s length transactions, less the following deductions, in each case related specifically to the Licensed Product and actually
incurred,  paid  or  accrued  by  Qilu,  its  Affiliates  or  Sublicensees  and  not  otherwise  recovered  by  or  reimbursed  to  Qilu,  its
Affiliates, or Sublicensees: [***].

Subject to the above, Net Sales will be calculated in accordance with the applicable Accounting Standards, consistently

applied.

1.105 “NMPA” means the National Medical Products Administration in China, including its internal institutions such as
the CDE, or any successor agency with a similar scope of responsibility regarding the regulation of human pharmaceutical and
biological products in China.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

11

1.106 “Non-Defaulting Party” has the meaning set forth in Section 12.2(b)(ii).

1.107 “Other Component” has the meaning set forth in Section 1.44.

1.108 “Participation Notice” has the meaning set forth in Section 4.1(f).

1.109 “Parties” or “Party” have the meaning set forth in the Preamble.

1.110 “Party Vote” has the meaning set forth in Section 3.5.

1.111 “Patent Prosecution” means activities directed to (a) preparing, filing and prosecuting applications (of all types)
for any Patent Right, (b) managing any interference, opposition, re-issue, reexamination, supplemental examination, invalidation
proceedings  (including  inter  partes  or  post-grant  review  proceedings),  revocation,  nullification,  or  cancellation  proceeding
relating to the foregoing Patent Rights, (c) maintaining issued Patent Right(s), (d) listing in regulatory publications such as the
Orange Book and its equivalents (as applicable), (e) obtaining patent term extensions, supplementary protection certificates and
the like for issued Patent Right(s), and maintenance thereof, and (f) managing, including settling, any interference, opposition,
reexamination, invalidation, revocation, nullification or cancellation proceeding relating to issued Patent Right(s).

1.112 “Patent Right” means (a) all patents and patent applications in any country or supranational jurisdiction, (b) any
substitutions,  divisionals,  continuations,  continuations-in-part,  provisional  applications,  reissues,  renewals,  registrations,
confirmations,  re-examinations,  extensions,  supplementary  protection  certificates  and  the  like  of  any  such  patents  or  patent
applications, (c) foreign counterparts of any of the foregoing, (d) all applications claiming priority to any of the foregoing and
(e) any patents issuing on any patent application identified in clauses (a) through (d).

1.113 “Person” means any individual, partnership, limited partnership, limited liability partnership, corporation, limited
liability company, business trust, joint stock company, trust, incorporated association, joint venture, unincorporated organization
or association, or Governmental Authority.

1.114 “Pharmacovigilance Agreement” has the meaning set forth in Section 4.6.

1.115 “Phase  I  Clinical  Trial”  means  a  clinical  study  for  the  first  introduction  into  humans  of  a  pharmaceutical  or
immunogenicity,  pharmacological  activity  or

biological  product 
pharmacokinetics, as described in federal regulation 21 C.F.R. § 312.21(a) or its foreign equivalents.

information  on  product  safety, 

tolerability, 

to  get 

1.116 “Phase  II  Clinical  Trial”  means  a  clinical  study  in  humans  of  the  safety,  dose  ranging  and  efficacy  of  a

pharmaceutical or biological product, as described in federal regulation 21 C.F.R. § 312.21(b) or its foreign equivalents.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

12

1.117 “Phase III Clinical Trial” means a controlled clinical study, or a portion of a controlled study, in humans of the
efficacy  and  safety  of  a  pharmaceutical  or  biological  product,  which  study  (in  its  entirety  or  portion,  as  applicable),  is
prospectively designed to demonstrate statistically whether such pharmaceutical or biological product is effective and safe for use
in a particular indication in a manner sufficient to file an application to obtain Regulatory Approval, as further defined in federal
regulation 21 C.F.R. § 312.21(c) or its foreign equivalents. For clarity, with respect to what is commonly called a phase 2/3 study,
the  Phase  III  Clinical  Trial  definition  is  met  upon  the  first  patient,  first  visit  in  the  portion  of  such  study  that  is  prospectively
designed  to  demonstrate  statistically  whether  such  pharmaceutical  or  biological  product  is  effective  and  safe  for  use  in  a
particular  indication  in  a  manner  sufficient  to  file  an  application  to  obtain  Regulatory  Approval,  as  further  defined  in  federal
regulation 21 C.F.R. § 312.21(c) or its foreign equivalents.

1.118 “Product  Data”  means  any  and  all  data  relating  to  or  arising  out  of  the  Development  or  Manufacture  of  the
Licensed  Compound  or  Licensed  Products,  or  that  is  otherwise  necessary  or  useful  for  the  Exploitation  of  the  Licensed
Compound or Licensed Products in the Field in the Applicable Territory, including data collected or resulting from pre-clinical
studies  or  Clinical  Trials,  CMC  data,  Manufacturing  records  and  information,  and  supporting  documentation  (e.g.,  protocols,
format  of  case  report  forms,  analysis  plans)  relating  to  pre-clinical  studies,  Clinical  Trials  or  other  Development  or
Manufacturing activities with respect to the Licensed Compound or Licensed Products.

1.119 “Product Infringement” has the meaning set forth in Section 11.3(b)(i).

1.120 “Qilu” has the meaning set forth in the Preamble.

1.121 “Qilu Indemnitees” has the meaning set forth in Section 10.2.

1.122 “Qilu New IP” has the meaning set forth in Section 11.1(b)(i).

1.123 “Qilu Territory Trademarks” has the meaning set forth in Section 6.3(c).

1.124 “Receiving Party” has the meaning set forth in Section 8.1.

1.125 “Regulatory  Approval”  means  all  Approvals,  including  if  required  by  Applicable  Laws,  pricing  Approvals,
necessary for the marketing and sale of a pharmaceutical or biological product in a particular country or regulatory jurisdiction,
which may include satisfaction of all applicable regulatory and notification requirements.

1.126 “Regulatory  Authority”  means  any  federal,  national,  supranational,  state,  provincial,  directly  administered
municipality or local regulatory agency, department, bureau or other Governmental Authority, including the USFDA, the CDE
and the NMPA, that has authority over the manufacture, development, commercialization or other use or exploitation (including
the granting of Regulatory Approval) of any Licensed Product in any applicable regulatory jurisdiction.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

13

1.127 “Regulatory Documents” means any filing, application or submission with any Regulatory Authority, including
authorizations,  approvals  or  clearances  arising  from  the  foregoing,  including  INDs,  MAAs  and  Regulatory  Approvals  or  their
equivalents in any jurisdiction, and all written correspondence or written communication with or from the relevant Regulatory
Authority,  as  well  as  minutes  of  any  material  meetings,  telephone  conferences  or  discussions  with  the  relevant  Regulatory
Authority, in each case, with respect to the Licensed Compound or a Licensed Product.

1.128 “Regulatory-Based  Exclusivity”  means,  on  a  Licensed  Product-by-Licensed  Product  and  Relevant  Region-by-
Relevant  Region  basis,  that  (a)  Qilu  or  any  of  its  Affiliates  or  Sublicensees  has  been  granted  the  exclusive  legal  right  by  a
Regulatory  Authority  (or  is  otherwise  entitled  to  the  exclusive  legal  right  by  operation  of  Applicable  Law)  in  such  Relevant
Region to market and sell the Licensed Product or the active ingredient in such Licensed Product in such country, or (b) the data
and information submitted by Qilu or any of its Affiliates or Sublicensees to the relevant Regulatory Authority in such Relevant
Region for purposes of obtaining Regulatory Approval for such Licensed Product may not be disclosed, referenced or relied upon
in any way by any Person to support the Regulatory Approval or marketing of any product by a Third Party in such country other
than Qilu or its Affiliate or Sublicensee.

1.129 “Related Agreements” has the meaning set forth in Section 10.1.

1.130 “Relevant Persons” has the meaning set forth in Section 9.5(d).

1.131 “Relevant Region” has the meaning set forth in Section 1.145.

1.132 “Review Period” has the meaning set forth in Section 4.1(f).

1.133 “ROW Territory” means all countries of the world outside of the Territory.

1.134 “Royalty Term” means, with respect to a given Licensed Product in a Relevant Region, the period commencing on
the  First  Commercial  Sale  of  such  Licensed  Product  in  such  Relevant  Region  and  ending  upon  the  later  to  occur  of  (a)  the
expiration of the last-to-expire Valid Claim of the Arbutus Patents that Cover such Licensed Product in such Relevant Region, (b)
th
the  expiration  of  Regulatory-Based  Exclusivity  for  such  Licensed  Product  in  such  Relevant  Region,  or  (c)  the  tenth  (10 )
anniversary of the First Commercial Sale of such Licensed Product in such Relevant Region.

1.135 “Sales Milestone Event” has the meaning set forth in Section 7.4.

1.136 “Sales Milestone Payment” has the meaning set forth in Section 7.4.

1.137 “Section 9.6 Representatives” has the meaning set forth in Section 9.6(a).

1.138 “Subcontractor” means CROs, CMOs, CSOs, distributors, wholesalers or similar vendors engaged by a Party to

perform on such Party’s behalf its activities under this Agreement.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

14

1.139 “Sublicensee” means any Third Party to whom Qilu or any of its Affiliates grants a sublicense of the License, or

any further sublicensee of such rights (regardless of the number of tiers, layers or levels of sublicenses of such rights).

1.140 “Supply End Date” has the meaning set forth in Section 5.1.

1.141 “Tax” or “Taxes”  means  all  forms  of  preliminary  or  finally  imposed  taxation,  domestic  and  foreign  taxes,  fees,
levies,  duties  and  other  assessments  or  charges  of  whatever  kind  (including  sales,  use,  excise,  stamp,  transfer,  property,  value
added, goods and services, withholding and franchise taxes but, for clarity, excluding income taxes and, except as may be agreed
by the Parties otherwise, any other taxes levied on Arbutus or its Affiliates by any tax authority in the United States) together
with  any  interest,  penalties  or  additions  payable  in  connection  with  such  taxes,  fees,  levies  duties  and  other  assessments  or
charges.

1.142 “Technical Assistance” has the meaning set forth in Section 5.5(a).

1.143 “Technical Assistance Cap” has the meaning set forth in Section 5.5(a).

1.144 “Term” has the meaning set forth in Section 12.1.

1.145 “Territory”  means  the  Greater  Area  of  China,  including  (a)  China,  (b)  the  Hong  Kong  Special  Administrative
Region  (“Hong  Kong”),  (c)  the  Macau  Special  Administrative  Region  (“Macau”),  and  (d)  Taiwan  (each  of  the  foregoing  a
“Relevant Region”).

1.146 “Third Party” means any Person other than a Party or an Affiliate of a Party.

1.147 “Third Party Claims” has the meaning set forth in Section 10.1.

1.148 “Third Party Components” has the meaning set forth in Section 1.104.

1.149 “Third Party Offer” has the meaning set forth in Section 2.2.

1.150 “Third Party License” has the meaning set forth in Section 7.5(c).

1.151 “Third Party Licensee” means any Third Party holding a license (whether exclusive or non-exclusive) under the
Know-How  and  Patent  Rights  Controlled  by  Arbutus  or  its  Affiliates  during  the  Term  that  is  necessary  or  useful  in  the
Exploitation of the Licensed Compound and the Licensed Products in the Field in the ROW Territory.

1.152 “Trademark”  means  any  word,  name,  symbol,  color,  designation  or  device  or  any  combination  thereof  that
functions as a source identifier, including any trademark, trade dress, brand mark, service mark, trade name, brand name, logo,
business symbol or domain names, whether or not registered.

1.153 “US GAAP” has the meaning set forth in Section 1.1.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

15

1.154 [***].

1.155 “United States” or “U.S.” means the United States of America, including its territories and possessions.

1.156 “Upfront Payment” has the meaning set forth in Section 7.1.

1.157 “USFDA”  means  the  United  States  Food  and  Drug  Administration  or  any  successor  agency(ies)  or  authority

thereto having substantially the same function.

1.158 “Valid Claim” means either (a) a claim of an issued and unexpired patent or a supplementary protection certificate,
which has not been held permanently revoked, unenforceable or invalid by a decision of a court, patent office or other forum of
competent jurisdiction, unappealable or unappealed within the time allowed for appeal and that is not admitted to be invalid or
unenforceable through reissue, disclaimer or otherwise (i.e., only to the extent the subject matter is disclaimed or is sought to be
deleted or amended through reissue), dedicated to the public or abandoned, or (b) a claim of a pending patent application being
prosecuted in good faith where the earliest priority date of which claim is less than [***], that has not been abandoned, finally
rejected or expired without the possibility of appeal or refiling.

ARTICLE 2
LICENSE

2.1

License Grant to Qilu. Arbutus agrees to grant and hereby grants to Qilu and its Affiliates during the Term an
exclusive (even as to Arbutus and its Affiliates, except as necessary for Arbutus to perform its obligations under this Agreement,
or to exercise the retained rights expressly set forth in this Section 2.1), royalty-bearing, non-transferable (except in accordance
with Section 13.2) license, with the right to grant sublicenses through multiple tiers (in accordance with Section 2.3), under the
Arbutus IP to Exploit the Licensed Compound and Licensed Products in the Field in the Territory to the extent, and only to the
extent,  said  license  is  necessary  or  reasonably  useful  to  Exploit  the  Licensed  Compound  included  in  Licensed  Products.  For
clarity,  said  grant  includes  the  right  to  use  the  Arbutus  Materials  but  does  not  include  any  license  or  other  grant  of  rights  to
Exploit Arbutus Unlicensed Compounds. Subject to Section 2.2, Arbutus retains a right under the Arbutus IP, with the right to
grant licenses through multiple tiers, to (a) Develop, Manufacture, have Manufactured, use, import, and export Licensed Products
anywhere  in  the  world  for  the  purpose  of  Exploiting  the  Licensed  Compound  and  Licensed  Products  in  the  ROW  Territory,
including,  notwithstanding  the  foregoing  exclusive  license  grant,  the  non-exclusive  right  to  Develop,  Manufacture  and  have
Manufactured  Licensed  Compound  and  Licensed  Products  in  the  Field  in  the  Territory  (including  importing  and  exporting
activities in connection therewith) for Exploiting Licensed Products in the ROW Territory in all fields of use, but excluding, for
the  avoidance  of  doubt,  any  right  to  Commercialize  Licensed  Products  in  the  Field  in  the  Territory,  (b)  Exploit  the  Licensed
Compound and Licensed Products in the Territory outside the Field, and (c) Exploit Arbutus Unlicensed Compounds worldwide
in all fields of use.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

16

2.2

Right  of  First  Negotiation  Granted  to  Qilu.  During  the  Term  of  this  Agreement,  if  (a)  Arbutus  or  any  of  its
Affiliates intends to Exploit the Licensed Product outside the Field in any Relevant Region in the Territory, (b) Arbutus or any of
its Affiliates invents or develops any Additional Compound, as contained in any Additional Product, and Arbutus or any of its
Affiliates  intends  to  license  the  rights  to  a  Third  Party  in  any  Relevant  Region  in  the  Territory  to  Exploit  such  Additional
Compound and Additional Product, or (c) Arbutus or any of its Affiliates intends to contract with a Third Party to Manufacture
the  Licensed  Compound  and/or  Licensed  Product  in  any  Relevant  Region  in  the  Territory  for  the  purpose  of  Exploiting  the
Licensed Compound and Licensed Products in the ROW Territory, Arbutus shall notify Qilu of such intent in writing. If Arbutus
provides written notice under clause (c), such notice shall include the price received by Arbutus from a well-known CMO in the
Territory  agreed  between  the  Parties  (e.g.,  [***])  to  Manufacture  the  Licensed  Compound  and/or  Licensed  Product  in  the
Territory (the “Third Party Offer”). Arbutus agrees to grant and hereby grants Qilu the exclusive right of first negotiation to, in
the case of the foregoing clause (a) and clause (b), obtain an exclusive license on commercially reasonable terms to Exploit the
Licensed  Compound  and/or  Licensed  Product  outside  the  Field  in  such  Relevant  Region  in  the  Territory,  or  the  Additional
Compound  and  Additional  Product  in  such  Relevant  Region  in  the  Territory,  or  in  the  case  of  the  foregoing  clause  (c),  to
Manufacture  the  Licensed  Compound  and/or  Licensed  Product  in  such  Relevant  Region  in  the  Territory  for  Arbutus  on
commercially reasonable terms, including a price of the Licensed Compound and/or Licensed Product that is lower than the price
provided in the Third Party Offer. For clarity, Qilu’s exclusive right of first negotiation under clause (c) above shall only apply if
Qilu or its Affiliate will Manufacture the Licensed Compound and/or Licensed Product in such Relevant Region in the Territory,
and not if a Third Party subcontracted by Qilu or its Affiliate will Manufacture the Licensed Compound and/or Licensed Product
on  their  behalf.  Qilu  shall  have  [***].  [***](the  “Negotiation  Period”).  If  Qilu  does  not  exercise  its  right  of  first  negotiation
during such [***] period, or if the Parties fail to enter into a definitive agreement within the Negotiation Period, then Arbutus
shall  be  entitled  to  negotiate  and  enter  into  agreement  with  any  Third  Party  for  the  relevant  transaction  without  any  further
obligation to Qilu under this Section 2.2.

2.3

Right to Sublicense.

(a)

Qilu shall have the right to grant sublicenses of the License to its Affiliates to fulfill any of its obligations
or exercise any of its rights under this Agreement. Each sublicense granted pursuant to this Section 2.3(a) shall be consistent with
the terms and conditions of this Agreement. Notwithstanding any such sublicense, Qilu shall remain directly responsible for all of
its obligations under this Agreement.

(b)

Qilu and its Affiliates shall have the right to grant sublicenses of the License to Third Parties; provided,
that  any  sublicense  of  the  License  to  a  Sublicensee  that  includes  the  right  to  Commercialize  or  Manufacture  the  Licensed
Compound or the Licensed Product shall require the prior written consent of Arbutus, which consent shall not be unreasonably
withheld, conditioned or delayed. Each sublicense granted pursuant to this Section 2.3(b) shall be subject to a written agreement
that is consistent with the terms and conditions of this Agreement. Qilu shall provide Arbutus with a copy of any sublicense it
enters into with a Sublicensee within thirty (30) days after the execution thereof. Notwithstanding any such sublicense, Qilu will
remain directly responsible for all of its obligations under this Agreement.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

17

2.4

Right to Subcontract. Qilu shall have the right to engage Subcontractors to perform on Qilu’s behalf its activities
under  this  Agreement;  provided,  that  (i)  if  a  Subcontractor  requires  a  sublicense  of  the  License  to  perform  the  subcontracted
activities, such sublicense complies with the requirements of Section 2.3(b), (ii) if such Subcontractor is a CMO, Qilu may only
engage such CMO with the prior written consent of Arbutus, which consent shall not be unreasonably withheld, conditioned or
delayed, (iii) Qilu shall cause its Subcontractors to be bound by (x) written obligations of confidentiality and non-use at least as
restrictive as those set forth in this Agreement, and (y) other obligations consistent with this Agreement to the extent applicable
to the activities being performed by such Subcontractor, and (iv) Qilu shall remain directly responsible for any obligations that
have been subcontracted to a Subcontractor as if the Subcontractor were a party hereto.

2.5

Technology Transfer. Subject to Qilu’s payment of the Upfront Payment, within [***] after receipt by Arbutus of
the Upfront Payment, Arbutus shall provide Qilu with complete and accurate copies of all of the Arbutus Know-How set forth in
Exhibit  2.5,  including  any  Batch  Records,  which  shall  be  delivered  in  its  existing  format,  and  in  a  secure  and  commercially
reasonable  manner.  If,  following  such  initial  delivery,  any  additional  necessary  or  reasonably  necessary  Arbutus  Know-How
comes into Arbutus’ or any of its Affiliates’ Control during the Term (including any Product Data included within the Arbutus
Know-How resulting from the Development of the Licensed Compound or Licensed Products in the ROW Territory), Arbutus
shall  deliver  an  electronic  copy  (which  may  be  through  access  to  a  secured  electronic  database)  of  any  tangible  embodiments
thereof to Qilu without charging Qilu any additional fees. In addition, if at any time during the Term, Qilu identifies particular
documents,  data  or  information  that  are  within  the  Arbutus  Know-How,  but  were  not  previously  delivered  to  Qilu,  including
materials  requested  in  connection  with  an  audit  or  other  inquiry  by  a  Regulatory  Authority  relating  to  the  Development,
Manufacture or Commercialization of the Licensed Products, then upon the request of Qilu Arbutus shall use reasonable efforts
to promptly deliver an electronic copy of such material (which may be through access to a secured electronic database) to Qilu
free of charge to the extent that such material is within Arbutus’ Control. The Parties shall cooperate in good faith to enable Qilu
to  receive  access  to  any  Arbutus  Know-How  that  is  necessary  or  reasonably  useful  to  Exploit  the  Licensed  Compound  and
Licensed Products in the Field in the Territory.

2.6

No  Implied  Licenses.  Except  as  expressly  set  forth  herein,  neither  Party  shall  acquire  any  license  or  other
intellectual property interest, by implication or otherwise, under any Patent Rights, Know-How, Trademarks, or other intellectual
property rights of the other Party.

ARTICLE 3
GOVERNANCE

3.1

Alliance Managers. Each Party shall appoint an English-speaking individual to act as its alliance manager under
this  Agreement  as  soon  as  practicable  after  the  License  Effective  Date  (each  Party’s  appointed  individual,  its  “Alliance
Manager”).  The  Alliance  Managers  shall  (a)  serve  as  the  primary  points  of  contact  between  the  Parties  for  the  purpose  of
providing  the  other  Party  with  information  on  the  progress  of  a  Party’s  activities  under  this  Agreement,  (b)  be  responsible  for
facilitating the flow of information and otherwise promoting communication, coordination and collaboration between the

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

18

Parties, and (c) facilitate the prompt resolution of any disputes. Each Party may replace its Alliance Manager at any time upon
written notice to the other Party.

3.2

Joint Steering Committee.

(a)

Formation;  Purposes  and  Principles.  Promptly  following  the  License  Effective  Date,  but  in  no  event
later  than  thirty  (30)  days  thereafter,  the  Parties  will  form  a  joint  steering  committee  (the  “JSC”)  to  provide  oversight  and  to
facilitate information sharing between the Parties with respect to the activities of the Parties under this Agreement.

(b)

Specific Responsibilities. In addition to the responsibilities set forth in Section 3.2(a), the JSC will:

(i)

coordinate  and  share  information  with  respect  to  the  Development,  Manufacturing  and
Commercialization  of  Licensed  Products  undertaken  by  Qilu  and  its  Affiliates  and  Sublicensees  under  this  Agreement,
including Development activities undertaken in accordance with the Development Plan;

review  and  approve  (x)  the  initial  Development  Plan  and  subsequent  amendments  to  the
Development Plan proposed by Qilu, and (y) the protocol for each Clinical Trial of the Licensed Product in the Field in
the Territory proposed to be conducted by Qilu, its Affiliates or Sublicensees;

(ii)

(iii)

discuss  at  a  high-level  and  exchange  relevant  information  relating  to  the  Development,
Manufacture  and  Commercialization  activities  for  the  Licensed  Products  undertaken  by  Arbutus  and  its  Affiliates  and
Third  Party  Licensees  in  the  ROW  Territory  (x)  to  the  extent  relevant  to  the  Development,  Manufacture  and
Commercialization of the Licensed Products in the Field in the Territory, and (y) to the extent that Arbutus Controls such
information and has the right to disclose such information to Qilu;

(iv)

attempt to resolve in the first instance all matters between the Parties that are in dispute; and

(v)

perform such other functions as are assigned to it in this Agreement or as appropriate to further the

purposes of this Agreement to the extent agreed to by the Parties.

3.3 Membership. The  JSC  will  be  composed  of  three  (3)  representatives  appointed  by  each  of  Arbutus  or  Qilu,  or
such other number as the Parties may agree in writing. Each individual appointed by a Party as a representative to the JSC will be
an  English-speaking  employee  of  such  Party,  or  an  employee  of  such  Party’s  Affiliate,  and  shall  possess  qualifications  and
experience  and  decision-making  authority  appropriate  for  the  matters  before  the  JSC.  Each  Party  may  replace  any  of  its  JSC
representatives at any time upon written notice to the other Party, which notice may be given by e-mail, sent to the other Party’s
co-chairperson. The JSC will be co-chaired by one designated representative of each Party. The co-chairperson of the JSC will
cast its Party Vote (as defined below) on the JSC. The co-chairpersons will be responsible for (a) calling

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

19

meetings, (b) preparing and circulating an agenda in advance of each meeting; provided, however, that the co-chairpersons will
include  any  agenda  items  proposed  by  either  Party  on  such  agenda,  and  (c)  preparing  and  issuing  minutes  of  each  meeting
promptly thereafter. Each JSC representative will be subject to confidentiality obligations no less stringent than those set forth in
ARTICLE 8.

3.4 Meetings;  Reports.  The  JSC  will  hold  meetings  on  a  Calendar  Quarter  basis  during  the  Term  or  more  or  less
frequently as may be agreed by the Parties. The JSC may meet in person or by audio or video conference as its representatives
may  mutually  agree.  Other  representatives  of  the  Parties,  their  Affiliates  and  Third  Parties  involved  in  the  Development,
Manufacture or Commercialization of Licensed Products may be invited by the members of the JSC to attend meetings as non-
voting  observers;  provided,  however,  that  such  representatives  are  subject  to  confidentiality  obligations  no  less  stringent  than
those set forth in ARTICLE 8. No action taken at a meeting will be effective unless at least one representative of each Party is
present or participating. Neither Party will unreasonably withhold attendance of at least one representative of such Party at any
meeting of the JSC for which reasonable advance notice was provided.

3.5

Decision-Making; Escalation to Executive Officers. The Parties will endeavor in good faith to reach unanimous
agreement with respect to all matters within the JSC’s authority. Each Party’s representatives on the JSC shall collectively have
one vote (the “Party Vote”) and no action or decision shall be taken by the JSC on such matters without unanimous Party Vote
(i.e., the affirmative Party Vote of each Party), except as expressly provided in this Section 3.5, which will be documented in the
minutes of the applicable JSC meeting or by a written consent signed by each Party’s co-chairperson. Should the JSC not be able
to  reach  agreement  with  respect  to  a  matter  at  a  duly  called  meeting  of  the  JSC,  either  Party  may  refer  such  matter  to  the
Executive Officers for resolution, and the Executive Officers will attempt to resolve the matter in good faith. If the Executive
Officers fail to resolve such matter within [***] after the date on which the matter is referred to the Executive Officers (unless a
longer period is agreed to by the Parties), then: (a) Arbutus shall have final decision-making authority with respect to [***]; and
(b) Qilu shall have final decision-making authority with respect to [***]. Each Party shall at all times exercise its final decision-
making authority using reasonable scientific and business judgment, in compliance with Applicable Laws, and with respect to
Qilu  in  accordance  with  its  diligence  and  other  obligations  under  this  Agreement.  The  JSC  shall  not  have  responsibility  for,
oversight  over  or  decision-making  authority  with  respect  to,  the  Development,  Manufacture  or  Commercialization  of  the
Licensed Products by Arbutus, its Affiliates or Third Party Licensees, either in the Territory or in the ROW Territory. Neither the
JSC nor either Party, in exercising its decision-making authority, shall have the authority or power to (1) amend or modify the
terms of this Agreement, (2) avoid or seek to avoid any obligation of such Party under this Agreement, (3) waive compliance
with the terms of this Agreement, (4) permit a Party to take an action that requires the prior written consent or other approval of
the other Party under  this  Agreement,  or  (5)  impose  additional  financial  or  other obligations on a Party that are not otherwise
specified in this Agreement or agreed to by such Party.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

20

ARTICLE 4
DEVELOPMENT AND REGULATORY MATTERS

4.1

Development Obligations.

(a)

Qilu shall at its sole expense use Commercially Reasonable Efforts to, by itself or through its Affiliates or

Sublicensees, Develop and seek Regulatory Approval for at least one (1) Licensed Product in the Field in the Territory.

(b) Without limiting Qilu’s obligations under Section 4.1(a), Qilu shall use Commercially Reasonable Efforts
to Develop the Licensed Products in the Field in the Territory pursuant to a development plan that will include a description of
the Development activities to be performed in support of obtaining Regulatory Approval for the Licensed Products in the Field in
the  Territory,  including  Clinical  Trial  designs  (as  such  development  plan  may  be  amended,  the  “Development  Plan”).  The
Development  Plan  shall  include  projected  timelines  for  the  completion  of  material  Development  activities,  including  the
following: [***]. An  outline  of  the  initial  Development  Plan  is  attached  hereto  as  Exhibit  4.1.  Within  [***]  after  the  License
Effective Date, Qilu shall submit to the JSC an initial draft of the Development Plan for the JSC’s review and approval. Once
approved by the JSC, all amendments to the initial Development Plan shall not be effective unless and until approved by the JSC,
[***]. Not later than [***] days prior to the commencement of each Calendar Year during the Term when Development of the
Licensed  Products  in  the  Field  in  the  Territory  is  ongoing,  Qilu  shall  submit  to  the  JSC  an  updated  Development  Plan  for  the
subsequent Calendar Year for its review and approval. Such update shall take into account completion, commencement, changes
in or cessation of Development activities not contemplated by the then-current Development Plan in sufficient detail to reflect the
continued  diligence  of  Qilu  and  its  Affiliates  and  Sublicensees.  If,  from  time  to  time  during  the  Term,  there  are  any  material
changes to the proposed Development activities to be conducted by Qilu and its Affiliates and Sublicensees that are not reflected
in the then-current Development Plan, including the addition of any Clinical Trials or any material changes to any Clinical Trial
already included therein, Qilu shall promptly submit to the JSC an amendment to the Development Plan for the JSC’s review and
approval.

(c) Without limiting Qilu’s obligations under Section 4.1(a) and Section 4.1(b), Qilu, by itself or through its
Affiliates  or  Sublicensees,  shall  achieve  each  of  the  following  diligence  milestones  by  the  corresponding  diligence  deadline,
provided  that  (i)  with  respect  to  diligence  milestone  2  listed  below,  Arbutus  has  timely  supplied  the  Licensed  Product  (with
sufficient quantities and quality) in accordance with the terms of the Clinical Supply Agreement, and (ii) with respect to diligence
milestones 1 and 2 listed below, Arbutus has timely provided the material Arbutus Know-How then in the Control of Arbutus or
its  Affiliates  in  accordance  with  Sections  2.5  and  9.4(c)  in  order  to  enable  Qilu  to  achieve  the  diligence  milestones  by  the
applicable diligence deadlines, the receipt of which shall be confirmed by Qilu in writing:

1
2

[***]
[***]

Diligence Milestone

Diligence Deadline
[***]
[***]

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

21

If Qilu anticipates that it will not be able to achieve one or both of the diligence milestones set forth above by the corresponding
diligence  deadline,  Qilu  shall  provide  Arbutus  with  written  notice  thereof.  The  Parties,  through  the  JSC,  shall  discuss  Qilu’s
expectations  regarding  timing  relating  to  achievement  of  the  applicable  milestone(s)  and  the  factors  relating  thereto.  Arbutus
shall  consider  in  good  faith,  and  shall  not  unreasonably  withhold  its  consent  to,  any  reasonable  extension  to  the  diligence
deadlines set forth above proposed by Qilu. For clarity, any amendment to the diligence deadlines set forth above shall require the
written  agreement  of  the  Parties.  Notwithstanding  the  foregoing,  if  Qilu  is  not  able  to  achieve  one  or  both  of  the  diligence
milestones  set  forth  above  by  the  corresponding  diligence  deadline  because  (x)  additional  pre-clinical  studies  not  previously
conducted by or on behalf of Arbutus, or (y) additional data not included within the Arbutus Know-How, are required by NMPA
in order to support submission of an IND, then the Parties shall extend the relevant diligence deadline(s) by a reasonable period
of time necessary for Qilu to conduct such additional pre-clinical studies or generate such additional data.

(d)

Qilu  will  perform  its  Development  obligations  under  this  Agreement  in  good  scientific  manner  and  in
compliance with all Applicable Laws, including with respect to each such activity that will or would reasonably be expected to be
submitted to a Regulatory Authority in support of a regulatory filing or application for Regulatory Approval, cGLP and cGCP.

(e)

Qilu  shall  maintain  complete  and  accurate  records  of  all  work  conducted  by  or  on  behalf  of  Qilu  or  its
Affiliates, and shall require its Sublicensees to maintain complete and accurate records of all work conducted by or on behalf of
such Sublicensees, as applicable, in each case in furtherance of the Development of the Licensed Products in the Territory and
together with all material results, data and developments made in conducting such activities. Such records shall be maintained in
sufficient detail and in good scientific manner appropriate for patent and regulatory purposes and in accordance with Applicable
Law.

(f)

In the event that Arbutus decides to conduct a global Phase III Clinical Trial for a Licensed Product in the
Field  (a  “Global  Trial”),  Qilu  shall  have  the  right  to  participate  in  such  Global  Trial  by  including  Clinical  Trial  sites  in  the
Territory  on  the  terms  set  forth  in  this  Section  4.1(f)  (“Development  Participation  Right”).  In  advance  of  any  Global  Trial,
Arbutus  shall  provide  written  notice  thereof  to  Qilu  (a  “Global Trial Notice”). Qilu  shall  have  [***]  days  from  receipt  of  the
Global Trial Notice (the “Review Period”) to exercise its Development Participation Right by providing written notice thereof to
Arbutus (the “Participation Notice”). If Qilu exercises its Development Participation Right within the Review Period, the Parties
shall negotiate in good faith for up to [***] days an agreement setting forth the terms of Qilu’s participation in the Global Trial,
which shall include (A) Qilu’s obligation to support Arbutus in connection with the Global Trial by (i) recommending Clinical
Trial  sites  in  the  Territory;  provided,  that  Arbutus  shall  have  the  right  to  reject  any  Clinical  Trial  sites  that  do  not  meet  the
regulatory, quality or other standards of Arbutus, in Arbutus’s sole discretion, (ii) bearing all costs and expenses incurred by or on
behalf of Qilu for its participation in such Global Trial conducted in the Territory, and (iii) reimbursing Arbutus for a pro rata
portion  of  its  internal  and  external  expenses,  including  the  expenses  of  any  CRO  or  other  Third  Party  service  providers,  to
oversee  and  manage  the  Global  Trial  to  the  extent  attributable  to  the  Territory;  and  (B)  Qilu’s  rights  and  entitlements  in
connection with the Global Trial. For clarity, Arbutus shall have the right to control, in its sole discretion, the study design and

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

22

study protocol for the Global Trial. If Qilu does not deliver a Participation Notice to Arbutus during the Review Period, or if the
Parties  are  unable  to  execute  an  agreement  providing  for  Qilu’s  participation  in  the  Global  Trial  within  [***]  days  of  the
Participation  Notice,  then  Qilu  will  be  deemed  to  have  waived  its  Development  Participation  Right  for  the  Global  Trial  and
Arbutus  shall  have  no  further  obligation  to  Qilu  under  this  Section  4.1(f)  with  respect  to  participation  in  the  Global  Trial.
Notwithstanding the foregoing, Qilu may elect to develop, at its own cost and expense, the Licensed Products in any indication in
the Field in the Territory as approved under the Development Plan, even if Qilu does not exercise its Development Participation
Right with respect to the same indication in the Field in the Territory. For the avoidance of doubt, Arbutus shall share any and all
Arbutus  Know-How  arising  from  all  Global  Trials  with  Qilu  pursuant  to  Section  4.5,  regardless  of  whether  Qilu  agrees  to
participate in and be responsible for the costs of any such global Clinical Trials. This Section 4.1(f) shall also not be deemed to
limit or impose obligations on either Party with respect to the development of the Licensed Product in their Applicable Territory.

4.2

Development Reports. Within [***] days following the end of each Calendar Quarter during the Term in which
activities described in the Development Plan are ongoing, Qilu shall submit to Arbutus a report summarizing in reasonable detail
Qilu’s  and  its  Affiliates’  and  Sublicensees’  activities  related  to  (a)  the  Development  of  the  Licensed  Products  during  the
preceding Calendar Quarter, including any material pre-clinical and clinical activities undertaken with respect thereto, and (b) the
Manufacture of the Licensed Compound and Licensed Products during the preceding Calendar Quarter, including (i) an update on
Qilu’s  plans  for  the  Manufacture  and  supply  of  the  Licensed  Compound  and  Licensed  Products,  including  supply  for  raw
materials and components and any Third Party suppliers and CMOs to be included as part of such plans, and (ii) a summary of
any  material  Manufacturing-related  milestones  that  were  in  process  or  were  achieved  during  the  preceding  Calendar  Quarter,
including the status of any technology transfer, process validation, etc. Arbutus shall have the opportunity to discuss each such
report and its contents with Qilu, either through the JSC or in any other manner reasonably acceptable to both Parties, and Qilu
shall provide to Arbutus any additional documentation or information reasonably requested by Arbutus relating to such reports.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

23

4.3

Regulatory Activities.

(a)

Qilu shall apply for and maintain, at Qilu’s sole cost and expense, all Regulatory Documents relating to the
Licensed Products in the Field in the Territory. All Regulatory Documents relating to the Licensed Products in the Field in the
Territory shall be owned by Qilu and held in Qilu’s name, except for any Regulatory Documents, including any IND or Imported
Drug License, that are required under Applicable Laws to be filed in Arbutus’ name, which Regulatory Documents will be owned
by  Arbutus,  but  shall  be  prepared,  filed  and  maintained  by  Qilu  on  Arbutus’  behalf  (such  Regulatory  Documents  owned  by
Arbutus,  the  “Arbutus  Territory  Regulatory  Documents”).  Arbutus  shall,  at  the  direction  of  and  with  the  assistance  of  Qilu,
execute any documentation prepared by Qilu necessary to appoint Qilu as Arbutus’ local regulatory agent to perform regulatory
actions on its behalf in connection with the Arbutus Territory Regulatory Documents. Qilu  shall  be  responsible,  at  Qilu’s  sole
cost and expense, for all communications and interactions with Regulatory Authorities with respect to the Licensed Products in
the  Field  in  the  Territory,  both  prior  to  and  subsequent  to  receipt  of  any  Regulatory  Approvals.  At  least  thirty  (30)  days  in
advance  of  filing  any  material  Regulatory  Document  relating  to  a  Licensed  Product  with  any  Regulatory  Authority  in  the
Territory, including any IND or MAA (or, if a Regulatory Authority requires that a filing be made in a period that does not allow
for such thirty (30) day advance review period, then at a mutually agreed upon time in advance of such filing), Qilu shall provide
to Arbutus for Arbutus’ review and comment (i) the then-current draft of such Regulatory Document in full in Chinese, (ii) an
English  translation  of  the  following  portions  of  any  such  material  Regulatory  Document:  (w)  any  protocol  synopsis  included
therein;  (x)  any  clinical  overview  or  any  clinical  summary  for  the  Licensed  Compound,  including  any  summaries  of  clinical
safety, biopharmaceutics or efficacy data; (y) any data from any independent nonclinical pharmacology or toxicology studies with
the Licensed Compound conducted by Qilu or its Affiliates or Sublicensees; and (z) any data relating to the Manufacture of the
Licensed Compound or Licensed Product by or on behalf of Qilu or its Affiliates or Sublicensees, whether in the form of drug
substance  or  drug  product  (excluding  any  data  relating  to  any  Licensed  Compound  or  Licensed  Product  Manufactured  and
supplied by Arbutus under the Clinical Supply Agreement), and (iii) a summary of the other material parts thereof in English (the
“Initial Documentation”). Arbutus shall provide its comments to the Initial Documentation in good faith within [***] of receipt
thereof, which comments shall include (A) Arbutus’ written consent to the filing of any Arbutus Territory Regulatory Documents
within the Initial Documentation or (B) if no such consent is so included, comments on specific revisions to the Arbutus Territory
Regulatory Documents so that consent may be granted. Additionally, if Qilu makes any material changes to any protocol synopsis
included in the Initial Documentation or the material parts of such Regulatory Document as previously summarized by Qilu in
the Initial Documentation, then Qilu shall provide Arbutus with an updated version of such Initial Documentation at least three
(3) Business Days prior to filing the applicable Regulatory Document. Qilu will consider in good faith Arbutus’ comments to any
material  Regulatory  Documents  relating  to  a  Licensed  Product  prior  to  filing  such  Regulatory  Documents  with  the  applicable
Regulatory Authorities; provided, that no Arbutus Territory Regulatory Document relating to a Licensed Product may be filed in
the Territory without the prior written consent of Arbutus, such consent not to be unreasonably withheld, conditioned or delayed.
Within thirty (30) days after the filing of any material Regulatory Document relating to a Licensed Product with any Regulatory
Authority in the Territory, Qilu shall provide to Arbutus a complete electronic copy of the Regulatory Document original as filed
in Chinese. In

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

24

addition, after receiving Arbutus’ written request, Qilu shall provide to Arbutus, within a reasonable time, an English translation
of such Regulatory Document to the extent the original as filed is not written in English and an English translation thereof has not
been provided to Arbutus previously, together with an invoice for the cost of translation, and Arbutus shall pay Qilu the amount
as invoiced within thirty (30) days after receiving the invoice. Qilu shall notify Arbutus in writing at least ten (10) Business Days
in advance of any material meeting with Regulatory Authorities in the Territory relating to the Licensed Products, and Arbutus
shall  have  the  right,  but  not  the  obligation,  to  have  a  representative  of  Arbutus  accompany  Qilu  to  each  such  meeting  in  an
observational capacity if such attendance is permitted by the applicable Regulatory Authorities in the Territory; provided, that,
with respect to any meeting with Regulatory Authorities in the Territory pertaining to an Arbutus Territory Regulatory Document,
Arbutus’  representative  shall  have  the  right  to  attend  such  meeting  as  a  representative  of  the  applicant/owner  of  such  Arbutus
Territory  Regulatory  Document,  unless  Arbutus  agrees  in  writing  prior  to  such  meeting  that  such  representative  shall  be  in
attendance in an observational capacity only.

(b) Within thirty (30) days of receipt or filing, Qilu shall provide Arbutus with an electronic copy (in Chinese) and an
English translation of all correspondence with Regulatory Authorities or Governmental Authorities (other than, for clarity, any
material Regulatory Document, copies of which are required to be provided in accordance with Section 4.3(a) above). For clarity,
the  English  translation  shall  not  include  the  translation  of  any  attachments,  appendices  or  other  enclosures  to  or  with  the
correspondence. After  receiving  Arbutus’  written  request,  Qilu  shall  provide  to  Arbutus,  within  a  reasonable  time,  an  English
translation of such attachments, appendices or other enclosures to the extent the original is not written in English and an English
translation thereof has not been provided to Arbutus previously, together with an invoice for the cost of translation, and Arbutus
shall  pay  Qilu  the  amount  as  invoiced  within  thirty  (30)  days  after  receiving  the  invoice.  Additionally,  upon  the  reasonable
request of Arbutus, Qilu shall promptly provide Arbutus with an electronic copy (in Chinese) and an English written summary of
all  other  interactions  with  Regulatory  Authorities  and  Governmental  Authorities,  in  each  case  by  or  on  behalf  of  Qilu  or  its
Affiliates  or,  to  Qilu’s  knowledge,  Sublicensees  with  respect  to  the  Development  of  the  Licensed  Products  in  the  Field  in  the
Territory.

4.4

Right  of  Reference  and  Use.  Arbutus  agrees  to  grant  and  hereby  grants  to  Qilu  (and  any  Affiliate  of  Qilu  or
Sublicensee)  a  right  of  reference  to  all  Regulatory  Documents  pertaining  to  Licensed  Products  in  the  Field  submitted  to  a
Regulatory Authority by or on behalf of Arbutus or its Affiliates or Third Party Licensees that are Controlled by Arbutus or its
Affiliates  for  the  purpose  of  seeking,  obtaining  and  maintaining  Regulatory  Approval  of  Licensed  Products  in  the  Field  in  the
Territory. If requested by Qilu, Arbutus will, and will cause its Affiliates and Third Party Licensees to, provide a signed statement
to  this  effect  in  accordance  with  Applicable  Laws.  Qilu  agrees  to  grant  and  hereby  grants  to  Arbutus  (and  any  Affiliate  of
Arbutus or Third Party Licensee) a right of reference to all Regulatory Documents pertaining to Licensed Products submitted to
Regulatory Authorities by or on behalf of Qilu, its Affiliates or Sublicensees that are Controlled by Qilu or its Affiliates for the
purpose of seeking, obtaining and maintaining Regulatory Approval of Licensed Products in the ROW Territory (or to seek any
approvals from a Regulatory Authority required for the Development or Manufacturing of the Licensed Product in the Territory
in accordance with Arbutus’ retained rights). If requested by Arbutus, Qilu will, and will cause its Affiliates and its Sublicensees,
to provide a signed statement to this effect in accordance with Applicable Laws.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

25

4.5

Data Exchange and Use.

(a)

For the ROW Territory. During the Term, Qilu shall provide prompt high-level updates to Arbutus through the
JSC regarding any newly generated Product Data that has been generated and finalized by or on behalf of Qilu or its Affiliates or
Sublicensees  with  respect  to  the  Licensed  Compound  and  the  Licensed  Products  in  the  Field  in  the  Territory.  Upon  Arbutus’
reasonable request, Qilu shall promptly provide Arbutus with electronic copies of, or reasonable access to, such Product Data to
the extent that such Product Data has not been previously provided or made accessible to Arbutus. Arbutus shall have the right to
use  such  Product  Data  to  Exploit  the  Licensed  Compound  and  the  Licensed  Products  in  the  ROW  Territory  (or  to  seek  any
approvals from a Regulatory Authority required for the Development or Manufacturing of the Licensed Product in the Territory
in accordance with Arbutus’ retained rights). To the extent legally possible and permitted, Qilu shall be responsible for obtaining
any Approvals required by the Applicable Law in order to allow Arbutus to legally access and use the Product Data.

(b)

For the Territory. During  the  Term,  Arbutus  shall  provide  prompt  high-level  updates  to  Qilu  through  the  JSC
regarding  any  newly  generated  Product  Data  that  has  not  been  previously  provided  or  made  accessible  to  Qilu.  Upon  Qilu’s
reasonable request, an electronic copy of any such Product Data included within the Arbutus Know-How not previously delivered
to Qilu shall be delivered to Qilu in accordance with Section 2.5.

4.6

Adverse Events Reporting. Within ninety (90) days following the License Effective Date, or as otherwise agreed
by  the  Parties,  Qilu  and  Arbutus  shall  develop  and  agree  in  a  separate  written  agreement  to  worldwide  safety  and
pharmacovigilance  procedures  for  the  Parties  with  respect  to  Licensed  Products,  such  as  safety  data  sharing  and  exchange,
adverse  events  reporting  and  prescription  events  monitoring  (the  “Pharmacovigilance  Agreement”).  Such  Pharmacovigilance
Agreement shall describe the obligations of both Parties with respect to the coordination of collection, investigation, reporting
and  exchange  of  information  between  the  Parties  concerning  adverse  events  or  any  other  safety  issue  of  any  significance  and
product quality and product complaints involving adverse events, in each case with respect to Licensed Products and sufficient to
permit  each  Party  and  its  Affiliates,  Third  Party  Licensees  and  Sublicensees  to  comply  with  its  legal  obligations  with  respect
thereto.  The  Pharmacovigilance  Agreement  shall  be  promptly  updated  if  required  by  changes  in  Applicable  Law.  Each  Party
hereby agrees to comply with its respective obligations under the Pharmacovigilance Agreement and to cause its Affiliates, Third
Party Licensees and Sublicensees to comply with such obligations. Without limiting the foregoing, Arbutus will be responsible
for  and  shall  have  the  sole  right  to  maintain  a  global  adverse  event  database  for  the  Licensed  Compound  and  the  Licensed
Products.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

26

4.7

No Harmful Actions. Each Party shall not, and shall use Commercially Reasonable Efforts to cause its Affiliates,
Sublicensees (with respect to Qilu), Third Party Licensees (with respect to Arbutus) and Subcontractors not to, take any action
with respect to the Licensed Compound or a Licensed Product that could reasonably be expected to have an adverse impact upon
the other Party’s Regulatory Approval status of the Licensed Compound or any Licensed Product in the other Party’s Applicable
Territory.  If  a  Party  believes  that  the  other  Party  is  or  any  of  its  Affiliates,  Sublicensees  (with  respect  to  Qilu),  Third  Party
Licensees  (with  respect  to  Arbutus)  or  Subcontractors  are  taking  or  intends  to  take  any  action  with  respect  to  the  Licensed
Compound  or  a  Licensed  Product  that  could  have  an  adverse  impact  upon  other  Party’s  Regulatory  Approval  status  of  the
Licensed Compound or any Licensed Product in such Party’s Applicable Territory, then the Parties shall discuss in good faith a
resolution of such concern.

4.8

Notice of Regulatory Action. Each Party shall promptly, but in any event within two (2) Business Days of receipt
of  relevant  information,  notify  the  other  Party  of  any  information  that  it  receives  regarding  any  threatened  or  pending  action,
inspection or communication by or from a Third Party, including a Regulatory Authority, that would reasonably be expected to
materially  adversely  affect  the  Exploitation  of  the  Licensed  Compound  or  Licensed  Products  in  the  Territory  or  the  ROW
Territory.

4.9

Arbutus  Support.  In  addition  to  Arbutus’  express  obligations  to  provide  certain  information  under  this
Agreement, including under Section 2.5, the Parties understand and agree that it may be necessary for Qilu from time to time to
seek support from Arbutus with respect to the following matters: (a) becoming familiar with and being able to understand and use
the  Product  Data  included  in  the  Arbutus  Know-How;  and  (b)  answering  questions  necessary  to  enable  Qilu  to  (i)  prepare
Regulatory  Documents  relating  to  the  Licensed  Compound  or  Licensed  Products  in  the  Field  in  the  Territory,  and  (ii)  prepare
responses  to  any  requests  made  by  Regulatory  Authorities  in  the  Territory  relating  to  the  Licensed  Compound  or  Licensed
Products  in  the  Field  (the  “Arbutus Support”).  Upon  the  request  of  Qilu,  Arbutus  shall  provide  the  Arbutus  Support  to  Qilu,
subject  to  the  following  terms  and  conditions:  (1)  all  Arbutus  Support  shall  be  provided  through  employees  of  Arbutus,  and
Arbutus shall have no obligation to (x) provide any Arbutus Support that requires Arbutus to utilize any CRO, CMO or other
Third Party service provider or incur any out-of-pocket costs, including any fees charged by any CRO, CMO or other Third Party
service provider, unless Arbutus agrees to provide such Arbutus Support in writing, such Arbutus Support not to be unreasonably
rejected or withheld, and Qilu timely pays (or reimburses Arbutus for) all such out-of-pocket costs, or (y) require any Arbutus
employees to travel in-person to the Territory (except as may be agreed by the Parties otherwise, in which case, the Parties shall
also  agree  on  the  specific  travel  arrangements  and  Qilu’s  responsibility  for  the  costs  therefor);  (2)  [***];  and  (3)  [***](the
“Arbutus  Support  Cap”).  If  Qilu  requires  Arbutus  Support  in  excess  of  the  Arbutus  Support  Cap,  Arbutus  agrees  not  to
unreasonably withhold its agreement to provide such additional Arbutus Support. Within thirty (30) days after the end of each
Calendar Quarter when Arbutus Support is provided, Arbutus shall deliver to Qilu an invoice setting forth the number of hours of
Arbutus Support provided during the prior Calendar Quarter and the amounts owed to Arbutus with respect thereto, including any
out-of-pocket costs to be paid by Qilu. Each such invoice shall be paid by Qilu within thirty (30) days of the date of such invoice
and otherwise in accordance with Sections 7.5(g), 7.5(h) and 7.6.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

27

ARTICLE 5
MANUFACTURE AND SUPPLY

5.1

Supply Obligations. Subject to the terms of this Agreement, Arbutus, by itself or through an Affiliate or one or
more Third Parties, shall be responsible for Manufacturing and supplying to Qilu all quantities of the Licensed Compound and
Licensed Products necessary for Qilu to Develop and Commercialize the Licensed Compound and Licensed Products in the Field
in  the  Territory  until  Qilu  has  received  all  Approvals  required  for  Qilu  or  its  designated  CMO  to  Manufacture  the  Licensed
Compound and Licensed Products in the Territory (the “Supply End Date”). Qilu shall use Commercially Reasonable Efforts to
obtain all Approvals required for Qilu or its designated CMO to Manufacture the Licensed Products in the Territory as soon as
reasonably practicable following the License Effective Date. After the Supply End Date, Qilu shall be responsible at its sole cost
for Manufacturing all quantities of the Licensed Products necessary for Qilu and its Affiliates and Sublicensees to Develop and
Commercialize Licensed Products in the Field in the Territory, and Arbutus’ obligation to Manufacture and supply quantities of
the  Licensed  Products  for  Qilu  shall  terminate.  Qilu  acknowledges  and  agrees  that  Arbutus  has  engaged  certain  CMOs  to
Manufacture  the  Licensed  Products  on  behalf  of  Arbutus  and  that  Arbutus’  ability  to  conduct  the  Manufacturing  Technology
Transfer  and  to  supply  quantities  of  the  Licensed  Products  to  Qilu  are  subject  to,  and  limited  by,  the  terms  of  Arbutus’
agreements  with  such  CMOs.  Arbutus  shall  use  Commercially  Reasonable  Efforts  to,  or  to  cause  its  CMOs  to,  complete  the
Manufacturing  Technology  Transfer  and  supply  the  Licensed  Products  in  a  timely  manner.  Notwithstanding  the  foregoing,
Arbutus  will  remain  directly  responsible  for  its  obligations  under  this  Agreement  that  have  been  subcontracted  to  its  CMO.
Arbutus hereby represents and warrants to Qilu that, as of the Execution Date, the terms of Arbutus’ agreements with its CMOs
(i)  do  not  conflict  in  any  material  respect  with  its  supply  obligations  for  the  Licensed  Compound  and  Licensed  Products  as
contemplated hereunder; and (ii) do not limit its ability or otherwise conflict with its obligations to conduct the Manufacturing
Technology Transfer as contemplated hereunder.

5.2

Clinical Supply Agreement.  Within  ninety  (90)  days  following  the  License  Effective  Date,  which  time  period
may be extended upon mutual agreement of the Parties, the Parties shall negotiate in good faith and enter into a clinical supply
agreement  and  related  quality  agreement  pursuant  to  which  Arbutus  will  supply  to  Qilu  Licensed  Compound  and  Licensed
Products,  at  Arbutus’  Manufacturing  Cost,  for  use  in  Development  of  the  Licensed  Product  in  the  Field  in  the  Territory  (the
“Clinical Supply  Agreement”).  The  Clinical  Supply  Agreement  shall  contain  supply  terms  and  conditions  consistent  with  the
principles set forth on Exhibit 5.2 hereto and such other terms as are customary for such agreements.

5.3

Commercial  Supply  Agreement.  At  a  time  specified  by  Qilu,  but  in  any  event  as  soon  as  practicable  after
submission of an MAA for a Licensed Product to a Regulatory Authority in the Territory provided that the Supply End Date has
not  occurred,  the  Parties  shall  negotiate  in  good  faith  a  commercial  supply  agreement  and  related  quality  agreement  for  the
commercial supply of Licensed Compound and Licensed Products by Arbutus to Qilu, at a price to be agreed between the Parties,
for use in Commercialization of the Licensed Products in the Field in the Territory (the “Commercial Supply Agreement”). The
Commercial Supply Agreement shall provide for purchase of Licensed

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

28

Compound  and  Licensed  Products  and  shall  contain  such  other  terms  as  are  customary  and  commercially  reasonable  for  such
agreements.

5.4

Supply to Arbutus. Subject to the Manufacturing Technology Transfer Completion, upon the request of Arbutus,

the Parties shall negotiate in good faith:

(a)

a clinical supply agreement and related quality agreement for the clinical supply of Licensed Compound by
Qilu to Arbutus for use in Development of the Licensed Product in the Field in the ROW Territory on commercially reasonable
terms, including a price to Arbutus which shall be identical to Arbutus’ Manufacturing Cost for the Licensed Compound under
Section 5.2; and/or

(b)

a  commercial  supply  agreement  and  related  quality  agreement  for  the  commercial  supply  of  Licensed
Compound by Qilu to Arbutus for use in Commercialization of the Licensed Products in the ROW Territory, on commercially
reasonable terms, including a price to be agreed between the Parties that is less than the price available to Arbutus from a well-
known CMO in the Territory agreed between the Parties (e.g., [***]).

5.5 Manufacturing Technology Transfer.

(a)

Upon request by Qilu made after receipt by Arbutus of the Upfront Payment, Arbutus shall, and shall use
Commercially  Reasonable  Efforts  to  cause  its  CMO(s)  to,  commence  the  Manufacturing  technology  transfer  (the
“Manufacturing  Technology  Transfer”)  to  Qilu  or  its  permitted  CMO  or  permitted  Sublicensees  in  accordance  with  a
manufacturing technology transfer plan (“Manufacturing Technology Transfer Plan”) to be negotiated in good faith and entered
into by the Parties, which shall set forth the process by which Arbutus shall transfer to Qilu (or its permitted CMO or permitted
Sublicensees) all of the Arbutus IP that is necessary or reasonably useful for the Manufacturing of the Licensed Compound and
Licensed Products (“Manufacturing Technology”). In addition to the Manufacturing Technology Transfer, Arbutus shall provide
reasonable technical assistance and support for Qilu to Manufacture or have Manufactured the Licensed Compound and Licensed
Products until Manufacturing Technology Transfer Completion in accordance with the terms of this Section 5.5(a)  (“Technical
Assistance”). Arbutus and Qilu shall each use Commercially Reasonable Efforts to perform their respective obligations necessary
to  achieve  Manufacturing  Technology  Transfer  Completion  as  soon  as  reasonably  possible.  Qilu  shall  be  responsible  for
reimbursing Arbutus for any out-of-pocket costs, including any fees charged by any CMO or other Third Party service provider,
required to perform the Manufacturing Technology Transfer or the Technical Assistance, to the extent not otherwise reimbursed
under this Agreement. Upon the request of Qilu, Arbutus shall provide the Technical Assistance to Qilu, subject to the following
terms  and  conditions:  (1)  the  Technical  Assistance  shall  not  require  any  Arbutus  employee  to  travel  in-person  to  the  Territory
(except as may be agreed by the Parties otherwise, in which case, the Parties shall also agree on the specific travel arrangements
and Qilu’s responsibility for the costs therefor); (2) the Technical Assistance shall include the time spent by Arbutus employees to
oversee any activities in connection with the Manufacturing Technology Transfer and the Technical Assistance provided by any
CMO or other Third Party service provider; (3) [***]; and (4) [***](the “Technical Assistance Cap”). If Qilu requires Technical
Assistance in excess of the Technical Assistance Cap, Arbutus agrees not to unreasonably withhold its agreement

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

29

to  provide  such  additional  Technical  Assistance.  Within  thirty  (30)  days  after  the  end  of  each  Calendar  Quarter  when  the
Manufacturing Technology Transfer is ongoing or the Technical Assistance is provided, Arbutus shall deliver to Qilu an invoice
setting forth the number of hours of Technical Assistance provided during the prior Calendar Quarter and the amounts owed to
Arbutus with respect thereto, including any out-of-pocket costs to be paid by Qilu, together with any out-of-pocket costs incurred
by  Arbutus  in  connection  with  the  Manufacturing  Technology  Transfer  to  be  paid  by  Qilu,  in  each  case  to  the  extent  not
otherwise reimbursed or paid for by Qilu under this Agreement. Each such invoice shall be paid by Qilu within thirty (30) days of
the date of such invoice and otherwise in accordance with Sections 7.5(g), 7.5(h) and 7.6.

(b)

After  the  Supply  End  Date,  Qilu  will  have  the  right  and  responsibility  to  Manufacture  or  have
Manufactured  Licensed  Product  in  the  Territory  for  clinical  or  commercial  use,  as  the  case  may  be,  using  the  Manufacturing
Technology transferred under the Manufacturing Technology Transfer Plan.

(c)

If  there  is  any  additional  Arbutus  Know-How  pertaining  to  Manufacturing  Technology  that  comes  into
Arbutus’ or any of its Affiliates’ Control during the Term after Manufacturing Technology Transfer Completion (including any
data resulting from the Manufacture of the Licensed Products in the ROW Territory after the Manufacturing Technology Transfer
Completion),  Arbutus  shall  promptly  notify  Qilu  and  provide  copies  thereof  to  Qilu  in  accordance  with  Section  2.5  at  no
additional cost.

5.6

Transfer  of  the  Arbutus  Materials.  Following  Arbutus’  receipt  of  the  Upfront  Payment,  Arbutus  shall  use
Commercially Reasonable Efforts to arrange and conduct the shipment of the Arbutus Materials in accordance with the schedule
set  forth  on  Exhibit  1.19.  The  Parties  shall  sign  material  transfer  agreements  in  a  form  reasonably  acceptable  to  both  Parties
before each shipment of the Arbutus Materials, which material transfer agreement shall include a price for the applicable Arbutus
Materials that reflects the fair market value thereof as mutually agreed by the Parties. Risk of loss, damage and delay shall pass to
Qilu [***] at Arbutus’s shipping dock and Qilu shall be responsible for arranging for shipment and importation of the Arbutus
Materials into the Territory. For  the  avoidance  of  doubt,  Arbutus  shall  not  be  required  to  deliver  any  materials  or  information
pursuant to this Section 5.6 that have been transferred electronically with other Arbutus Know-How or provided pursuant to the
Clinical Supply Agreement.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

30

6.1

Commercialization Obligations.

ARTICLE 6
COMMERCIALIZATION

(a)

Upon receipt of Regulatory Approval for a Licensed Product in the Field in the Territory, Qilu (directly, or
through its Affiliates and Sublicensees) shall use Commercially Reasonable Efforts to Commercialize such Licensed Product in
the Field in the Territory. Subject to the terms and conditions of this Agreement, including this ARTICLE 6  and  ARTICLE  3,
Qilu will be solely responsible for Commercializing Licensed Products in the Field in the Territory at its sole expense, and will
have sole discretion with respect to Commercializing Licensed Products in the Field in the Territory.

(b)

Qilu will perform its Commercialization obligations under this Agreement in good scientific manner and in

compliance with all Applicable Laws.

to generate sales for its other products.

(c)

Qilu will not under any circumstances use the Licensed Compound or Licensed Products as a “loss leader”

(d)

Qilu  shall  not  sell  a  Licensed  Product  as  part  of  a  bundle  including  one  or  more  active  pharmaceutical
ingredients  or  therapeutic  agents  other  than  those  contained  in  the  Licensed  Product  that  is  invoiced  as  a  single  product  for  a
single price without the prior written consent of Arbutus as to the calculation of Net Sales relating thereto. For clarity, subject to
the foregoing provisions of this Section 6.1(d), Qilu may Exploit the Licensed Compound and Licensed Products in any product
or treatment regimen that comprises, or is a combination of, (i) a Licensed Product, and (ii) another product, where (i) and (ii) are
labeled for use together either simultaneously or in a separate or sequential administration, whether or not sold for a single price.
For clarity, the other product may be a small molecule drug or a biological drug.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

31

6.2

Commercialization Reports.

(a)

(i)  Within  [***]  days  following  the  end  of  each  Calendar  Quarter  for  the  first  [***]  Calendar  Years
occurring  after  Regulatory  Approval  for  the  first  Licensed  Product  in  the  Territory  is  obtained,  and  (ii)  within  [***]  days
following the end of the [***] Calendar Quarter during each Calendar Year thereafter until the end of the Term, Qilu shall submit
to Arbutus a report summarizing in reasonable detail Qilu’s and its Affiliates’ and permitted Sublicensees’ activities related to (x)
the  Commercialization  of  the  Licensed  Products  during  the  preceding  Calendar  Quarter(s),  and  (y)  the  Manufacture  of  the
Licensed Compound and Licensed Products during the preceding Calendar Quarter, including (A) an update on Qilu’s plans for
the  Manufacture  and  supply  of  the  Licensed  Compound  and  Licensed  Products,  including  supply  for  raw  materials  and
components and any Third Party suppliers and CMOs to be included as part of such plans, and (B) a summary of any material
Manufacturing-related  milestones  that  were  in  process  or  were  achieved  during  the  preceding  Calendar  Quarter,  including  the
status of any technology transfer, process validation, etc. Arbutus shall have the opportunity to discuss each such report and its
contents with Qilu, either through the JSC or in any other manner reasonably acceptable to both Parties, and Qilu shall provide to
Arbutus any additional documentation or information reasonably requested by Arbutus relating to such reports.

(b)

At  least  [***]  prior  to  the  anticipated  First  Commercial  Sale  of  a  Licensed  Product  in  the  Field  in  the
Territory,  Qilu  shall  submit  to  Arbutus  its  proposed  commercial  launch  plan  for  such  Licensed  Product  for  Arbutus’  review.
Following the delivery of the initial commercial launch plan, Qilu shall submit to Arbutus an annual update to such plan within
[***]  days  after  the  end  of  each  Calendar  Year.  The  initial  commercial  launch  plan  and  each  subsequent  annual  update  shall
include  promotional  plans,  projected  timelines,  pricing  and  contracting  strategy,  product  position  statement,  communications
strategy,  and  promotional  efforts  commitments.  Upon  the  request  of  Arbutus  from  time  to  time  after  receipt  of  Regulatory
Approval for the first Licensed Product in the Field in the Territory, Qilu shall provide to Arbutus (i) a copy of Qilu’s then-current
marketing plan for the Licensed Products in the Field in the Territory, and (ii) copies of any marketing materials then being used
by Qilu to market and promote the Licensed Products in the Field in the Territory, in each case of (i) and (ii), as then currently
available and to the extent not previously provided.

6.3

Licensed Product Trademarks.

(a)

Each  Party  shall  be  solely  responsible  for  developing,  selecting,  searching,  registering  and  maintaining,
and shall be the exclusive owner of, all Licensed Product Trademarks in such Party’s Applicable Territory, except as expressly set
forth in this Section 6.3.

(b)

Arbutus  hereby  grants  to  Qilu  and  its  Affiliates  an  exclusive,  royalty-free,  non-transferable  (except  in
accordance  with  Section  13.2)  license,  with  the  right  to  grant  sublicenses  solely  in  connection  with  a  permitted  sublicense
pursuant to Section 2.3 with respect to a Licensed Product in the Field in the Territory, under any Licensed Product Trademarks
Controlled  by  Arbutus  or  its  Affiliates  other  than  any  Trademarks  that  include  any  corporate  name  or  logo  of  Arbutus  or  its
Affiliates  (such  Licensed  Product  Trademarks,  the  “Licensed  Product-Specific  Trademarks”)  for  all  uses  in  the  Field  in  the
Territory. A complete and accurate list of the Licensed Product-Specific Trademarks existing as of the

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

32

Execution  Date  is  set  forth  in  Exhibit 6.3(b). During  the  Term,  Arbutus  and  its  Affiliates  shall  not  use  any  Licensed  Product-
Specific  Trademark  or  any  other  Trademark  that  is  confusingly  similar  to  any  Licensed  Product-Specific  Trademark  in  the
Territory (except the use of the Licensed Product-Specific Trademarks in the Territory solely in connection with the performance
of Arbutus’ obligations or exercise of its retained rights in the Territory pursuant to Section 2.1), or register or attempt to register
any  such  Licensed  Product-Specific  Trademark  or  any  other  Trademark  that  is  confusingly  similar  to  any  Licensed  Product-
Specific Trademark with any Governmental Authority in the Territory.

(c)

Qilu shall have the right to brand the Licensed Products in the Territory using any Trademarks (including
Chinese character trademarks and trade names, including Chinese translation or transliteration of the Licensed Product-Specific
Trademarks) Qilu determines appropriate other than any Trademarks that include any corporate name or logo of Arbutus or its
Affiliates. As between the Parties, Qilu shall own all rights in the Trademarks specific to the Licensed Product in the Field in the
Territory other than the Licensed-Product Specific Trademarks (the “Qilu Territory Trademarks”), and all goodwill therein shall
accrue  to  Qilu.  Qilu  shall  register,  maintain  and  enforce,  at  its  own  cost  and  expense,  the  Qilu  Territory  Trademarks  as  Qilu
determines reasonably necessary.

6.4

No Other Trademark Rights. For the avoidance of doubt, except as expressly permitted by this Agreement or as
otherwise agreed in writing by the Parties, neither Party will have any right to use the other Party’s or the other Party’s Affiliates’
corporate names or logos in connection with Exploitation of Licensed Products, without first obtaining the other Party’s written
consent. Notwithstanding anything to the contrary herein, to the extent and only to the extent required by Applicable Laws, Qilu
may include Arbutus’ name and corporate logo on the Licensed Product label, packaging and promotional/marketing materials to
indicate that the Licensed Product is in-licensed from Arbutus.

6.5

Diversion. Subject to Applicable Law, each Party covenants and agrees that it shall not, and shall ensure that its
Affiliates,  Third  Party  Licensees  (with  respect  to  Arbutus)  and  Sublicensees  (with  respect  to  Qilu)  do  not,  either  directly  or
indirectly, promote, market, distribute, import, sell or have sold any Licensed Products, including via the Internet or mail order, to
any Third Party or to any address or Internet Protocol address or the like in the other Party’s Applicable Territory; provided, that
each Party shall have the right to attend conferences and meetings of congresses in the other Party’s Applicable Territory and to
promote and market, for their Applicable Territory, Licensed Products to Third Party attendees at such conferences and meetings,
subject  to  this  Section  6.5.  Neither  Party  shall  engage,  or  shall  permit  its  Affiliates,  Third  Party  Licensees  (with  respect  to
Arbutus) or Sublicensees (with respect to Qilu) to engage, in any advertising or promotional activities relating to any Licensed
Products for use directed primarily to customers or users of Licensed Products located in any country, jurisdiction or region in the
other Party’s Applicable Territory, or solicit orders from any prospective purchaser that such Party has reason to believe intends
to distribute such Licensed Product in any country, jurisdiction or region in the other Party’s Applicable Territory. If a Party or
any of its Affiliates, Third Party Licensees (with respect to Arbutus) or Sublicensees (with respect to Qilu) receives any order for
Licensed Products for use from a prospective purchaser that intends to distribute such Licensed Product in a country, jurisdiction
or region in the other Party’s Applicable Territory, then such Party shall promptly, but in any event within [***],

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

33

refer that order to such other Party and shall not accept any such orders. Except as otherwise provided herein, neither Party shall,
or shall permit its Affiliates, Third Party Licensees (with respect to Arbutus) or Sublicensees (with respect to Qilu) to, deliver or
tender (or cause or knowingly permit to be delivered or tendered) any Licensed Products for use in the other Party’s Applicable
Territory. Notwithstanding the foregoing, this Section 6.5 is not intended to limit, and shall not limit, Arbutus’ retained rights as
set forth in Section 2.1, including Arbutus’ right to Exploit Licensed Products in the Territory outside the Field.

ARTICLE 7
PAYMENTS

7.1

Upfront Payment. Within thirty (30) days of the Execution Date, and subject to receipt of Arbutus’ invoice for
the Upfront Payment issued on the Execution Date, Qilu shall pay to Arbutus a one-time, non-refundable, non-creditable upfront
payment of Forty Million Dollars ($40,000,000.00) (the “Upfront Payment”).

7.2

Development  and  Regulatory  Milestones.  Subject  to  the  terms  and  conditions  of  this  Agreement,  Qilu  shall
make  each  of  the  one-time,  non-refundable,  non-creditable  milestone  payments  to  Arbutus  that  are  set  forth  below  (each  such
payment, a “Development Milestone Payment”) upon the first achievement of the corresponding milestone event by or on behalf
of Qilu or its Affiliate or Sublicensee with respect to a Licensed Product (each such milestone event, a “Development Milestone
Event”) in accordance with this Section 7.2. For  clarity,  each  Development  Milestone  Payment  under  this  Section 7.2  shall  be
paid  only  once  with  respect  to  the  first  time  the  corresponding  Development  Milestone  Event  is  achieved.  In  the  event  that  a
Development  Milestone  Event  is  achieved  and  an  earlier  Development  Milestone  Event  has  not  been  achieved  (e.g.,
Development  Milestone  Event  4  is  achieved  but  Development  Milestone  Event  3  has  not  been  achieved),  then  such  earlier
Development  Milestone  Event  shall  be  deemed  to  have  been  achieved  at  the  same  time  as  the  later  Development  Milestone
Event, and Qilu shall pay to Arbutus the Development Milestone Payment for the earlier Development Milestone Event at the
same  time  that  the  Development  Milestone  Payment  for  the  later  Development  Milestone  Event  is  achieved.  Qilu  shall  notify
Arbutus  in  writing  promptly,  but  in  no  event  later  than  two  (2)  Business  Days,  after  the  achievement  of  each  Development
Milestone  Event  set  forth  in  this  Section  7.2.  After  receiving  such  notice,  Arbutus  shall  invoice  Qilu  for  the  applicable
Development Milestone Payment in accordance with the notice. Qilu shall pay the applicable Development Milestone Payment
due to Arbutus in Dollars within twenty (20) Business Days following Qilu’s receipt of such invoice.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

34

Development Milestone Event

Development Milestone
Payment (Dollars)
$[***]
$[***]
$[***]
$[***]
$[***]

1
2
3
4
5

[***]
[***]
[***]
[***]
[***]

[***]

7.3 Manufacturing  Technology  Transfer  Completion  Payment.  Within  two  (2)  Business  Days  of  Manufacturing
Technology Transfer Completion, Qilu shall provide notice to Arbutus of the Manufacturing Technology Transfer Completion.
After receiving such notice, Arbutus shall invoice Qilu for a one-time, non-refundable, non-creditable payment of [***] Dollars
($[***]). Within twenty (20) Business Days following Qilu’s receipt of such invoice, Qilu shall pay such [***] Dollars ($[***])
to Arbutus.

7.4

Sales Milestones. Subject to the terms and conditions of this Agreement, Qilu shall make each of the one-time,
non-refundable, non-creditable milestone payments to Arbutus set forth below (each such milestone payment, a “Sales Milestone
Payment”) following the end of the first Calendar Year in which Annual Net Sales of the Licensed Products by Qilu, its Affiliates
and Sublicensees in the Territory achieve the sales threshold (set forth in the table below) corresponding to such Sales Milestone
Payment (each such sales threshold, a “Sales Milestone Event”) in accordance with this Section 7.4. In the event that more than
one Sales Milestone Event is first achieved in the same Calendar Year, then Qilu shall pay to Arbutus each of the corresponding
Sales Milestone Payments for each of the Sales Milestone Events that has first been achieved in such Calendar Year. Qilu shall
notify Arbutus in writing of the first achievement of each Sales Milestone Event set forth in this Section 7.4 as part of the royalty
reports  delivered  in  accordance  with  Section 7.5(f).  After  receiving  such  notice,  Arbutus  shall  invoice  Qilu  for  the  applicable
Sales  Milestone  Payment  in  accordance  with  the  notice.  Qilu  shall  make  payment  to  Arbutus  of  the  corresponding  Sales
Milestone Payment within twenty (20) Business Days after Qilu’s receipt of such invoice.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

35

Sales Milestone
Event (in Dollars)

Annual Net Sales in a given Calendar Year are equal to or greater than $[***]
Annual Net Sales in a given Calendar Year are equal to or greater than $[***]
Annual Net Sales in a given Calendar Year are equal to or greater than $[***]
Annual Net Sales in a given Calendar Year are equal to or greater than $[***]
Annual Net Sales in a given Calendar Year are equal to or greater than $[***]

7.5

Royalty Payments to Arbutus.

Sales Milestone
Payment (Dollars)
$[***]
$[***]
$[***]
$[***]
$[***]

(a)

Royalty  Rates.  Subject  to  the  terms  of  this  Section  7.5,  Qilu  shall  pay  to  Arbutus  tiered  royalties  on
Annual  Net  Sales  in  a  given  Calendar  Year  as  provided  below.  Royalties  shall  be  payable  on  a  Licensed  Product-by-Licensed
Product and Relevant Region-by-Relevant Region basis during the applicable Royalty Term. For clarity, the royalties (and royalty
tiers) set forth below shall be calculated on an aggregate basis based on Net Sales of all Licensed Products in the Territory in a
Calendar Year.

Annual Net Sales in a Given Calendar Year (in Dollars)
Portion of Annual Net Sales in a given Calendar Year above $0 and up to and including $[***]
Portion of Annual Net Sales in a given Calendar Year greater than $[***] up to and including
$[***]
Portion of Annual Net Sales in a given Calendar Year greater than $[***] up to and including
$[***]
Portion of Annual Net Sales in a given Calendar Year greater than $[***]up to and including
$[***]
Portion of Annual Net Sales in a given Calendar Year greater than $[***]

Royalty Rate
[***]%
[***]%

[***]%

[***]%

[***]%

The  applicable  royalty  rate  set  forth  in  the  table  above  will  apply  only  to  that  portion  of  the  Annual  Net  Sales  during  a  given
Calendar Year that falls within the indicated range.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

36

(b)

Royalty Termination Date. Following expiration of the Royalty Term for a given Licensed Product in a
Relevant Region: (i) no further royalties shall be payable in respect of sales of such Licensed Product in such Relevant Region;
and (ii) the License granted to Qilu hereunder with respect to such Licensed Product in such Relevant Region shall automatically
become fully paid-up, perpetual, irrevocable and royalty-free.

(c)

Royalty Stacking. If it is necessary to obtain a license from any Third Party to any Patent Rights owned or
controlled  by  such  Third  Party  to  Develop,  Manufacture  or  Commercialize  a  Licensed  Product  in  the  Field  in  the  Territory  (a
“Third Party License”), then Qilu shall have the right to obtain such Third Party License and may deduct from Qilu’s royalty
obligations under Section 7.5(a), on a Calendar Quarter-by-Calendar Quarter basis, [***] of any royalties paid under such Third
Party License for such Patent Rights during the applicable Calendar Quarter; [***].

(d)

Royalty Reduction. The royalty rate payable with respect to Annual Net Sales of a Licensed Product shall
be  reduced  on  a  Relevant  Region-by-Relevant  Region  basis,  to  [***]  of  the  rate  otherwise  payable  pursuant  to  Section  7.5(a)
during the portion of the applicable Royalty Term with respect to such Licensed Product in such Relevant Region which remains
in effect after the earlier of (i) the expiration of the last Valid Claim of an Arbutus Patent that Covers such Licensed Product in
such  Relevant  Region  or  (ii)  the  first  full  Calendar  Quarter  following  the  existence  of  Generic  Competition  for  such  Licensed
Product in such Relevant Region.

(e) Minimum Royalty. In no event, after taking into account the deductions set forth in Section 7.5(c) and the
reductions  set  forth  in  Section  7.5(d),  will  any  royalties  payable  by  Qilu  to  Arbutus  under  this  Section  7.5  for  any  Licensed
Product in any Relevant Region in any Calendar Quarter be less than [***] of the amount of royalties that would otherwise be
payable with respect thereto under Section 7.5(a) without taking into account such deductions and reductions.

(f)

Royalty  Reports  and  Payments.  Within  forty-five  (45)  days  after  the  end  of  each  Calendar  Quarter,
commencing  with  the  Calendar  Quarter  of  the  First  Commercial  Sale  of  the  first  Licensed  Product  in  the  Territory,  Qilu  shall
provide Arbutus with a report that contains the following information for the applicable Calendar Quarter, on a Licensed Product-
by-Licensed Product and Relevant Region-by-Relevant Region basis: (i) gross sales and Net Sales (including reasonable detail
for  deductions  from  gross  sales  to  Net  Sales  and  any  calculations  relating  to  conversion  of  foreign  currency  into  Dollar
equivalents); and (ii) the royalties payable under this Section 7.5 (including reasonable detail for any deductions to such royalties
or reductions to royalty rates taken pursuant to Section 7.5(c) or Section 7.5(d)) for such Calendar Quarter and (iii) if applicable
with respect to any report relating to the last Calendar Quarter of a Calendar Year, a notification of any Sales Milestone Events
first  achieved  during  such  Calendar  Year  and  the  amount  of  the  corresponding  Sales  Milestone  Payments  payable  under
Section  7.4.  After  receiving  the  report,  Arbutus  shall  invoice  Qilu  for  the  royalties  payable  under  this  Section  7.5  for  such
Calendar Quarter in accordance with the report. Within twenty (20) Business Days after receipt of such invoice, Qilu shall pay to
Arbutus the royalties payable under this Section 7.5 for such Calendar Quarter.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

37

(g)

Payment Method, Currency,  and  Exchange  Rate. All  payments  to  be  made  by  Qilu  to  Arbutus  under
this  Agreement  shall  be  made  in  U.S.  Dollars  by  electronic  funds  transfer  in  immediately  available  funds  to  a  bank  account
designated in writing  by  Arbutus. For  the  purposes  of  calculating  any  sums  due  under  this  Agreement,  Qilu  shall  convert  any
amount expressed in a foreign currency into U.S. Dollar equivalents, calculated using the applicable currency conversion rate as
published by State Administration of Foreign Exchange of People’s Republic of China on the last Business Day of the month
immediately preceding the month in which the applicable payment is due.

(h)

Interest. Any undisputed payments not made when due under this Agreement as provided herein will bear
interest  at  [***].  If  the  is  no  longer  published,  the  Parties  will  agree  upon  another  internationally  recognized  rate  which  has
historically been substantially equivalent to the and utilize such rate retroactively to such time as [***] was no longer available.

7.6

Taxes. If Qilu, its Affiliates, or Sublicensees, as applicable, are required by Applicable Law to deduct any Taxes
from or in respect of any sum payable under this Agreement to Arbutus: (a) the sum payable will be increased as necessary so
that after making all required deductions or withholdings for Taxes Arbutus receives a net amount equal to the sum it would have
received had no such deductions or withholdings been made (i.e., Arbutus has received the actual stated amount as set forth under
ARTICLE 7 or other applicable provision of this Agreement); (b) Qilu, its Affiliates, or Sublicensees, as applicable, shall make
such  deductions  or  withholdings;  and  (c)  Qilu,  its  Affiliates,  or  Sublicensees,  as  applicable,  shall  pay  the  amount  deducted  or
withheld  to  the  relevant  Tax  authority  or  other  Governmental  Authority  in  accordance  with  Applicable  Law,  and  pay  the
remainder to Arbutus. Qilu shall be responsible for (i) applying for any tax exemption or reduction under Applicable Law with
regard  to  its  payments  to  Arbutus  under  this  Agreement,  and  (ii)  preparation  and  filing  of  all  applicable  Tax  returns  relating
thereto. Arbutus shall cooperate, to the extent reasonably required, with the filing of any such Tax returns. Qilu shall indemnify
Arbutus for any Taxes imposed on Arbutus with respect to such payments if Arbutus directly pays any Taxes on such payments,
and Qilu shall promptly reimburse Arbutus for such Taxes, including all reasonable related costs. If Arbutus determines that it is
required  to  report  any  such  Taxes,  Qilu  shall  promptly  provide  Arbutus  with  applicable  receipts  and  other  documentation
necessary or appropriate for such report. Arbutus will issue the corresponding invoices reflecting the full amount due under other
provisions of this Agreement and any such withholding or similar Taxes collected at the source as separate line items in the notes
section of the said invoices, following the format provided by Qilu for such invoices. Except as set forth in this Section 7.6, each
Party shall be solely responsible for the payment of all taxes imposed on its share of income arising directly or indirectly from the
efforts of the Parties under this Agreement.

7.7

Financial Audits. Qilu shall keep (and shall cause its Affiliates and Sublicensees to keep) complete and accurate
records  pertaining  to  the  sale  or  other  disposition  of  Licensed  Products  in  reasonable  detail  to  permit  Arbutus  to  confirm  the
accuracy  of  all  royalty  payments  reported  under  Section  7.5  and  Sales  Milestone  Events  and  corresponding  Sales  Milestones
Payments reported under Section 7.4,  for  at  least  [***]  following  the  end  of  the  Calendar  Year  to  which  such  records  pertain.
Arbutus  shall  have  the  right  to  cause  an  independent,  certified  public  accountant  of  internationally  recognized  standing  which
shall be mutually agreed by the Parties (the “Auditor”) to audit such

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

38

records solely to confirm Net Sales, royalty payments and commercial sales milestones for a period covering not more than the
preceding [***]. Such audits shall be performed during normal business hours upon [***] days’ prior written notice to Qilu, and
in  a  manner  that  does  not  interfere  with  Qilu’s  or  its  applicable  Affiliate’s  or  Sublicensee’s  business  activities  for  a  period  of
[***].  The  Auditor  will  execute  a  written  confidentiality  agreement  that  is  acceptable  to  Qilu  with  Qilu  and  will  disclose  to
Arbutus only such information as is reasonably necessary to provide Arbutus with information regarding any actual or potential
discrepancies between amounts reported and amounts actually paid or payable under this Agreement. The report of the Auditor
will include the methodology and calculations used to determine the results, will be delivered to Arbutus and Qilu at the same
time, and will be final after delivery to both Parties. Qilu shall pay the amount of any underpayment disclosed in any Auditor’s
report,  together  with  any  interest  owed  thereon  (calculated  in  accordance  with  Section  7.5(h))  within  thirty  (30)  days  after
delivery  to  the  Parties  of  the  final  Auditor’s  report.  If  such  final  Auditor’s  report  discloses  an  overpayment  by  Qilu  of  the
royalties or other amounts payable hereunder, Qilu shall have the right to offset such overpayment against future payments owed
to Arbutus under this Agreement following the audit in question or, in the event no future payments are payable to Arbutus under
this  Agreement,  Arbutus  shall  refund  the  amount  of  such  overpayment  to  Qilu  within  thirty  (30)  days  after  written  request  by
Qilu. Any disclosures or reports disclosed to Arbutus under this Section 7.7 shall be Qilu’s Confidential Information.

7.8

Form of Payment. All payments to be made by Qilu to Arbutus under this Agreement shall be made in United
States Dollars and may be paid by bank wire transfer in immediately available funds to the bank account of Arbutus as Arbutus
may  from  time  to  time  designate  by  written  notice  to  Qilu.  Arbutus  shall  provide  wire  instructions  for  such  designated  bank
account in writing to Qilu at least thirty (30) days prior to the payment due date, and shall notify Qilu by written notice of any
changes to Arbutus’s designated bank account and wire instructions. As of the Execution Date, the designated bank account of
Arbutus for receiving all payments payable to Arbutus hereunder is as follows:            

FOR FUNDS COMING IN US CURRENCY ONLY: [***]

ARTICLE 8  
CONFIDENTIALITY; PUBLICATION

8.1

Confidential Information. “Confidential Information” means all non-public Know-How or other confidential or
proprietary  information,  including  proprietary  materials  or  information,  ideas,  inventions,  discoveries,  concepts,  compounds,
compositions,  formulations,  formulas,  practices,  procedures,  processes,  methods,  knowledge,  know-how,  trade  secrets,
technology,  inventories,  machines,  techniques,  development,  designs,  drawings,  computer  programs,  skill,  experience,
documents,  apparatus,  results,  clinical  and  regulatory  strategies,  regulatory  documentation,  information  and  submissions
pertaining  to  or  made  in  association  with  Regulatory  Documents,  data  (including  pharmacological,  toxicological,  and  clinical
data,  raw  data,  analytical  and  quality  control  data,  manufacturing  data  and  descriptions,  patent  and  legal  data,  market  data,
financial  data  or  descriptions),  devices,  assays,  chemical  formulations,  specifications,  material,  product  samples  and  other
samples,  physical,  chemical  and  biological  materials  and  compounds,  and  the  like,  transferred,  disclosed  or  otherwise  made
available by or on behalf of a Party (the “Disclosing Party”) to the other Party or its representatives (the “Receiving Party”) prior
to, on or after the Execution Date, whether or not patentable and

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

39

whether  or  not  disclosed  in  written,  oral  graphical,  machine-readable,  electronic  or  other  form  or  otherwise  observed  by  the
Receiving Party, and whether or not such information is marked as confidential or proprietary; provided that, in the event such
information  is  not  marked  as  confidential  or  proprietary,  the  circumstances  of  its  disclosure  or  observation  are  such  that  a
reasonable person should know that it is confidential or proprietary. It is understood and agreed by the Parties that the terms and
conditions  of  this  Agreement  will  be  considered  Confidential  Information  of  both  Parties  and  kept  confidential  by  each  of  the
Parties as set forth in this ARTICLE 8. For clarity, the Arbutus Know-How and Arbutus Patents (prior to their publication) will
be Confidential Information of Arbutus.

8.2

Non-Disclosure  and  Non-Use  Obligation.  Except  as  otherwise  expressly  set  forth  herein,  the  Receiving  Party
shall keep the Confidential Information of the Disclosing Party confidential using at least the same degree of care with which the
Receiving Party holds its own confidential information, but in no event less than a commercially reasonable degree of care, and
shall not (a) disclose such Confidential Information to any person or entity without the prior written approval of the Disclosing
Party,  except,  solely  to  the  extent  necessary  to  exercise  its  rights  or  perform  its  obligations  under  this  Agreement,  to  its
employees,  Affiliates,  Sublicensees  or  potential  Sublicensees  (with  respect  to  Qilu),  Third  Party  Licensees  (with  respect  to
Arbutus)  and  contractors,  consultants  or  agents  who  have  a  need  to  know  such  Confidential  Information,  all  of  whom  will  be
similarly  bound  by  the  provisions  of  this  ARTICLE  8  and  for  whose  compliance  herewith  the  Disclosing  Party  will  be
responsible,  or  (b)  use  such  Confidential  Information  for  any  purpose  other  than  for  the  purposes  contemplated  by  this
Agreement. The Receiving Party will use diligent efforts to cause the foregoing Persons to comply with the restrictions on use
and  disclosure  of  the  Disclosing  Party’s  Confidential  Information  set  forth  in  this  Section  8.2,  and  shall  be  responsible  for
ensuring that such Persons maintain the Disclosing Party’s Confidential Information in accordance with this ARTICLE 8.

8.3

Return of Confidential Information. Upon the expiration or termination of this Agreement, the Receiving Party
shall  return  to  the  Disclosing  Party  unused  tangible  materials,  or,  as  directed  by  the  Disclosing  Party,  destroy  all  Confidential
Information of the Disclosing Party that is in the Receiving Party’s possession or control; provided, however, that one (1) copy of
any  Confidential  Information  of  the  Disclosing  Party  may  be  retained  and  stored  solely  for  the  purpose  of  determining  its
obligations under this Agreement, provided that the non-disclosure and non-use obligation under this ARTICLE 8 shall continue
to apply to any such copy. In addition, the Receiving Party shall not be required to return or destroy Confidential Information
contained  in  any  computer  system  back-up  records  made  in  the  ordinary  course  of  business,  provided  that  such  Confidential
Information may not be accessed without the Disclosing Party’s prior written consent or except as required by Applicable Law,
and that such Confidential Information remains subject to the non-disclosure and non-use obligations under this ARTICLE 8.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

40

8.4

Exemption. The foregoing confidentiality and non-use obligations shall not apply to: (a) information already in
the possession of the Receiving Party prior to its disclosure by the Disclosing Party as evidenced by contemporaneous written
records; (b) information that is already in the public domain as of the date of disclosure to the Receiving Party or that comes into
the  public  domain  thereafter  by  publication  or  otherwise  through  no  breach  of  the  obligations  of  confidentiality  and  non-use
hereunder by the Receiving Party, including with respect to Section 8.8; (c) information that has been disclosed to the Receiving
Party from another source free from any obligation of confidentiality to the Disclosing Party; or (d) information that is developed
independently by employees, contractors, consultants or agents of the Receiving Party or any of its Affiliates without use of or
reliance upon the Disclosing Party’s Confidential Information, as evidenced by contemporaneous written records.

8.5

Permitted Disclosures. In addition to the exceptions contained in Section 8.2 and Section 8.4, the Receiving Party
may  disclose  Confidential  Information  of  the  Disclosing  Party  to  the  extent  (and  solely  to  the  extent)  that  such  disclosure  is
reasonably necessary in the following instances:

(a)

to  comply  with  Applicable  Law  (including  any  securities  law  or  regulation  or  the  rules  of  a  securities
exchange  pursuant  to  Section  8.6  below)  or  the  order  of  a  court  of  competent  jurisdiction,  provided  that,  where  legally
permissible,  the  Receiving  Party  promptly  notifies  the  Disclosing  Party  of  such  obligation  sufficiently  prior  to  making  such
disclosure,  so  as  to  allow  the  Disclosing  Party  adequate  time  to  take  whatever  action  it  may  deem  appropriate  to  protect  the
confidentiality of the information to be disclosed, and fully cooperates with the Disclosing Party, if so requested, in maintaining
the  confidentiality  of  such  information  by  applying  for  a  protective  order  or  any  similar  legal  instrument.  In  any  event,  the
Receiving Party shall only disclose such Confidential Information to the extent required under Applicable Law and shall continue
to treat such information as Confidential Information for all other purposes under this Agreement;

(b)

to  prosecute  or  defend  litigation  or  to  otherwise  exercise  its  rights  or  perform  its  obligations  in
Section 11.4, to obtain or maintain Regulatory Approvals and other regulatory filings and communications, to file or prosecute
patent  applications  as  contemplated  by  this  Agreement  and  to  enforce  Patent  Rights  in  connection  with  the  Receiving  Party’s
rights and obligations pursuant to this Agreement; and

provided that such disclosure is covered by terms of confidentiality and non-use at least as restrictive as those set forth herein.

(c)

to  allow  the  Receiving  Party  to  exercise  its  rights  and  perform  its  obligations  under  this  Agreement,

8.6

Disclosure of Agreement. Either Party may disclose the terms of this Agreement:

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

41

(a)

to  the  extent  required  or  advisable  to  comply  with  the  rules  and  regulations  promulgated  by  the  United
States  Securities  and  Exchange  Commission  or  any  equivalent  governmental  agency  in  the  Territory,  provided  that  such
disclosing  Party  shall  (i)  except  where  impracticable,  give  reasonable  advance  notice  to  the  other  Party  of  such  required
disclosure and a copy of the proposed disclosure, including any request for confidential treatment or redactions proposed by the
disclosing Party, and (ii) consider in good faith any requests by the other Party to seek confidential treatment for or redactions of
any  portions  of  such  proposed  disclosure,  it  being  understood  and  agreed  that  the  disclosing  Party  shall  have  the  right,  if  so
advised by such Party’s counsel, to disclose the terms of this Agreement if required or advisable to comply with the rules and
regulations promulgated by the United States Securities and Exchange Commission or any equivalent governmental agency in the
Territory;

(b)

to  actual  acquirers,  permitted  assignees,  merger  partners,  existing  investment  bankers,  investors  and
lenders or financing sources, provided, that such Third Party has executed with such Party, and such Party has provided to the
other Party, a copy of a confidentiality agreement (redacted for name of party, economic terms or other competitive information)
with  terms  at  least  as  protective  with  respect  to  Confidential  Information  as  those  contained  herein,  in  a  form  reasonably
acceptable to the other Party (which acceptance shall not be unreasonably withheld, conditioned or delayed);

(c)

for  customary  discussions  and  other  disclosures  with  and  to  bona  fide  prospective  acquirers,  permitted
assignees  or  merger  candidates  or  to  bona  fide  potential  investment  bankers,  investors  and  lenders,  or  financing  sources,
provided,  that  such  Third  Party  has  executed  with  such  Party,  and  such  Party  has  provided  to  the  other  Party,  a  copy  of  a
confidentiality agreement (redacted for name of party, economic terms or other competitive information) with terms at least as
protective with respect to Confidential Information as those contained herein, in a form reasonably acceptable to the other Party
(which acceptance shall not be unreasonably withheld, conditioned or delayed); and

(d)

to the extent necessary to perform such Party’s obligations or exercise its rights under this Agreement, to
any actual or potential licensee or sublicensee of such Party with respect to the Licensed Compound or Licensed Products in a
redacted form of this Agreement or its terms which shall be redacted in respect of financial terms, including payment amounts,
provided,  that  (1)  any  such  actual  or  potential,  licensee  or  sublicensee  agrees  in  writing  to  be  bound  by  obligations  of
confidentiality and non-use no less protective of the Disclosing Party than those set forth in this ARTICLE 8.

8.7

Publicity; Use of Name and Logo. The Parties have agreed on a press release announcing this Agreement, which
shall be issued by the Parties on such date and time as may be agreed by the Parties. Except to the extent  expressly  permitted
under  this  Agreement  or,  if  executed,  the  Clinical  Supply  Agreement,  the  Commercial  Supply  Agreement  or  the
Pharmacovigilance  Agreement,  or  as  required  by  Applicable  Laws,  each  Party  will  not  use  the  other  Party’s  or  its  Affiliates’
name or logo in any label, press release or product advertising, or for any other promotional purpose, without first obtaining the
other Party’s written consent.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

42

8.8

Publications.  If  Qilu  wishes  to  publish  or  present  in  a  public  forum  the  scientific  or  technical  results  of  any
Development activities with respect to the Licensed Compound or Licensed Products in the Territory, Qilu shall provide Arbutus
the  opportunity  to  review  any  proposed  abstracts,  manuscripts  or  scientific  presentations  (including  verbal  presentations)  with
respect thereto by delivering a copy thereof (if applicable) to Arbutus at least thirty (30) days prior to Qilu’s intended submission
for publication. Arbutus shall have thirty (30) days from its receipt of any such copy of the proposed disclosure in which to notify
Qilu in writing of (a)  any request to modify or delay the timing of any publication or presentation for up to ninety (90) days for
bona fide patenting reasons, or (b) any request to delete Arbutus’ Confidential Information prior to such publication. Qilu shall
promptly comply with any such request made by Arbutus prior to proceeding with such publication.

8.9

Engaging  Individuals.  Each  Party  hereby  agrees  that  all  Persons  engaged  to  perform  any  activities  under  this
Agreement shall be contractually bound by confidentiality obligations at least as restrictive as the obligations of confidentiality
and non-use set forth in this ARTICLE 8 prior to performing such activities.

8.10

Survival. This ARTICLE 8 shall survive the expiration or termination of this Agreement and shall remain in full
force and effect for seven (7) years after such expiration or termination; provided, that each Party’s obligations with respect to
any  trade  secret  included  in  the  Confidential  Information  of  the  other  Party  shall  continue  for  so  long  as  such  trade  secret  is
protected under Applicable Law.

ARTICLE 9
REPRESENTATIONS, WARRANTIES, AND COVENANTS

9.1
Execution Date that:

Representations and Warranties of Each Party. Each Party represents and warrants to the other Party as of the

incorporation;

(a)

it  is  validly  existing  and  in  good  standing  under  the  Applicable  Laws  of  the  jurisdiction  of  its

(b)

it has the full right, power and authority to (i) enter into this Agreement, (ii) conduct the activities allocated
to it under this Agreement, (iii) grant the licenses under this Agreement, (iv) grant and assign the rights under this Agreement,
and  (v)  disclose  the  information  and  Know-How  that  is  to  be  disclosed  under  this  Agreement,  in  each  case  to  the  extent
applicable to such Party;

(c)

this Agreement has been duly executed by it and is legally binding upon it, enforceable in accordance with
its  terms,  subject  to  bankruptcy,  insolvency,  reorganization,  arrangement,  winding-up,  moratorium  and  similar  laws  of  general
application  affecting  the  enforcement  of  creditors’  rights  generally,  and  does  not  conflict  with  any  agreement,  instrument  or
understanding, oral or written, to which it is a party or by which it or its assets may be bound, nor violate any Applicable Law of
any court, governmental body or administrative or other agency having jurisdiction over it;

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

43

written, that conflict with its obligations under this Agreement; and

(d)

neither  it,  nor  any  of  its  Affiliates  are  party  to  any  agreements,  instruments  or  understanding,  oral  or

(e)

except as otherwise provided herein, no government authorization, consent, approval, license, exemption
of or filing or registration with any Governmental Authority, domestic or foreign, under any Applicable Laws currently in effect,
on the part of such Party, is necessary for the transactions contemplated by this Agreement or any other agreement or instrument
executed in connection herewith.

9.2

Representations and Warranties of Arbutus. Arbutus represents and warrants to Qilu as of the Execution Date

that:

(a)

all  Arbutus  Patents  existing  as  of  the  Execution  Date  are  completely  and  accurately  set  forth  on
Exhibit 1.21 hereto. The inventors named in each Arbutus Patent have each assigned to Arbutus or its applicable Affiliate their
respective  entire  right,  title  and  interest  in  and  to  such  Arbutus  Patent.  The  Arbutus  Patents  set  forth  on  Exhibit  1.21  are  not
subject to any liens or encumbrances. Arbutus and its Affiliates have complied with all Appliable Laws in the prosecution and
maintenance of the Arbutus Patents;

(b)

Arbutus and its Affiliates exclusively own the Arbutus IP existing as of the Execution Date and there is no
agreement, instrument or understanding between Arbutus or its Affiliates and any Third Party pursuant to which Arbutus or its
Affiliates  have  obtained  any  right  or  license  to  the  Licensed  Compound  or  the  Licensed  Products  or  any  intellectual  property
rights related to the Licensed Compound or the Licensed Products. Arbutus has Control over all Know-How and Patent Rights
owned  by  it  or  its  Affiliates  as  of  the  Execution  Date  that  are  necessary  or  reasonably  useful  for  the  research,  Development,
Manufacturing,  Commercialization  or  other  Exploitation  of  the  Licensed  Compound  and  Licensed  Products  as  contemplated
under this Agreement as of the Execution Date;

IP under this Agreement;

(c)

Arbutus has the right to grant all rights and licenses it purports to grant to Qilu with respect to the Arbutus

(d)

there has been no settled, pending or threatened claim made in writing or lawsuit or legal proceeding of a
Third  Party  against  Arbutus  or  its  Affiliates  alleging  that  the  Arbutus  IP  or  the  practice  or  use  thereof  misappropriates  or
infringes, in part or in whole, the intellectual property or intellectual property rights of any Third Party in the Territory;

(e)

to  the  actual  knowledge  of  Arbutus  and  its  Affiliates,  without  any  independent  investigation,  the
Exploitation  of  the  Licensed  Compound  and  Licensed  Products  under  the  Arbutus  IP  in  the  Field  in  the  Territory  does  not
infringe the intellectual property or intellectual property rights of any Third Party as of the Execution Date;

(f)

Arbutus  and  its  Affiliates  have  not  granted  or  agreed,  promised  or  offered  to  grant,  or  have  been  or  are
under any obligation to grant, any right or license to any Third Party relating to any of the Arbutus IP that would cause a conflict
or interfere with any of the rights or licenses granted to Qilu and its Affiliates hereunder;

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

44

(g)

Arbutus and its Affiliates have not received any written notice or information concerning the institution of
any  interference,  opposition,  reexamination,  reissue,  revocation,  nullification,  cancellation,  patent  protest,  or  any  official
proceeding involving any Arbutus Patent anywhere in the Territory. There has been and there is no settled, pending or threatened
claim  or  lawsuit  or  legal  or  administrative  proceeding  of  a  Third  Party  alleging  that  the  Arbutus  Patents  are  invalid  or
unenforceable.  To  the  knowledge  of  Arbutus  and  its  Affiliates,  the  Arbutus  Patents  are,  or,  upon  issuance,  will  be,  valid  and
enforceable;

(h)

Arbutus  has  disclosed  to  Qilu  and  made  available  to  Qilu  for  review  (i)  all  safety-related  data  for  the
Licensed Compound and Licensed Products and (ii) all material non-clinical and clinical data within the Arbutus IP, in each case
of  (i)  and  (ii),  in  the  possession  of  Arbutus  or  its  Affiliates  as  of  the  Execution  Date.  To  the  knowledge  of  Arbutus  and  its
Affiliates, all such data is true and accurate in all material respects as of the time it was disclosed or otherwise made available;

Arbutus,  its  Affiliates  and  its  and  their  respective  Relevant  Persons  have  complied  with  all  Applicable
Laws in all material respects in connection with the Exploitation of the Licensed Compound and Licensed Products, including
cGLP, cGMP, cGCP and cGVP;

(i)

Arbutus  and  its  Affiliates  have  not  used  in  the  research,  Development  and  Manufacture  of  the  Licensed
Compound and Licensed Products any employee, consultant or contractor who has been Debarred by any Regulatory Authority,
or to the knowledge of Arbutus and its Affiliates, is the subject of a debarment proceeding by any Regulatory Authority;

(j)

(k)

neither Arbutus nor any of its Affiliates is a U.S. business that (i) produces, designs, tests, manufactures,
fabricates, or develops one or more “critical technologies”; (ii) performs the functions as set forth in column 2 of Appendix A to
31 C.F.R. Part 800 with respect to “covered investment critical infrastructure”; or (iii) maintains or collects, directly or indirectly,
“sensitive personal data” of U.S. citizens, in each case as such terms in quotation marks are defined in the Defense Production
Act of 1950, as amended, including all implementing regulations thereof; and

(l)

no funding, facilities, or personnel of any Governmental Authority or any public or private educational or
research institutions were used to develop or create any Arbutus IP, and neither Arbutus nor any of its Affiliates has entered into a
government funding relationship that would result in rights to the Licensed Compound or any Licensed Products residing in any
Governmental  Authority,  including,  without  limitation,  the  U.S.  Government,  the  National  Institutes  of  Health,  or  other
government agency, and the licenses granted hereunder are not subject to overriding obligations to any Governmental Authority,
including,  without  limitation,  the  U.S.  Government  as  set  forth  in  35  U.S.C.  §§  200  et  seq.,  or  any  similar  obligations  under
Applicable Laws of any other country or jurisdiction.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

45

9.3

Debarment;  Exclusion;  Disqualification.  Each  Party  hereby  certifies  to  the  other  as  of  the  License  Effective
Date and at all times during the Term that neither it, nor any of its Affiliates or, in the case of Qilu, Sublicensees, or, in the case of
Arbutus, Third Party Licensees, have been debarred under Section 306(a) or 306(b) of the United States Federal Food, Drug and
Cosmetic  Act,  as  may  be  amended  and  supplemented  from  time  to  time,  or  any  foreign  equivalent  thereof  (“Debarred”),
excluded by the Office of Inspector General pursuant to 42 U.S.C. § 1320a-7, et seq. or any state agency from participation in any
Federal  or  state  health  care  program  or  any  foreign  equivalent  thereof  (collectively  “Excluded”),  or  otherwise  disqualified  or
restricted  by  the  USFDA  pursuant  to  21  C.F.R.  312.70  or  any  other  Regulatory  Authority  or  foreign  equivalent  thereof
(“Disqualified”), and during the Term, neither it, nor any of its Affiliates or, in the case of Qilu, Sublicensees, or, in the case of
Arbutus,  Third  Party  Licensees,  shall  use,  in  any  capacity  in  connection  with  the  obligations  to  be  performed  under  this
Agreement,  any  Person  who  has  been  Debarred,  Excluded  or  Disqualified.  Each  Party  acknowledges  and  agrees  that  this
certification  imposes  a  continuing  obligation  on  such  Party  to  notify  the  other  Party  promptly  if  this  certification  is  no  longer
accurate,  and  that  if,  during  the  Term  of  this  Agreement,  it  becomes  aware  that  it  or  any  of  its  or  its  Affiliates’  employees  or
agents performing under this Agreement is the subject of any investigation or proceeding that could lead to that Party becoming a
Debarred, Excluded or Disqualified entity or individual, an Excluded entity or individual or a convicted entity or individual, such
Party will promptly notify the other Party.

9.4

Covenants of Arbutus. Arbutus covenants to Qilu that:

with the rights granted by it hereunder;

(a)

during the Term, Arbutus and its Affiliates will not make any commitment to any Third Party in conflict

(b)

neither Arbutus, nor any of its Affiliates, shall assign, transfer, convey or otherwise encumber during the
Term, its right, title or interest in or to the Arbutus IP in a manner that would prevent Qilu or its Affiliates, Subcontractors and
Sublicensees  from  researching,  Developing,  Manufacturing  or  Commercializing  the  Licensed  Compound  or  the  Licensed
Products  or  from  otherwise  exploiting  its  or  their  rights  and  licenses  granted  or  assigned  by  Arbutus  hereunder,  or  that  would
interfere with or be inconsistent with any of the foregoing activities;

(c)

during the Term, Arbutus will promptly disclose and make available to Qilu for review (i) all safety-related
data for the Licensed Compound and Licensed Products, and (ii) all material non-clinical and clinical data within the Arbutus IP,
in each case of (i) and (ii), which comes into the possession of Arbutus or its Affiliates and has not been disclosed or otherwise
made available to Qilu for review previously. Arbutus shall use Commercially Reasonable Efforts to confirm that all such data is
true and accurate in all material respects as of the time it is disclosed or otherwise made available to Qilu, which efforts shall in
no  event  be  less  than  the  efforts  Arbutus  would  use  if  such  data  were  to  be  used  by  Arbutus  in  its  own  Exploitation  of  the
Licensed Compound and Licensed Products in the Field in the ROW Territory;

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

46

the Licensed Product supplied by Arbutus to Qilu under Section 5.1 shall, at the time of delivery, comply
with all applicable specifications and have been Manufactured and delivered in accordance with all Applicable Laws, including
cGMP; and

(d)

(e)
with Section 11.2.

during the Term of this Agreement, Arbutus shall prosecute and maintain all Arbutus Patents in accordance

9.5
Agreement:

Covenants  of  Qilu.  Qilu  hereby  covenants  to  Arbutus  that  when  performing  its  activities  pursuant  to  this

(a)

it  will  prepare,  maintain  and  retain  all  Regulatory  Documents  in  the  Territory  pursuant  to  and  in
accordance in all material respects with all Applicable Laws and will not make any materially false or misleading statement to a
Regulatory Authority in connection with such Regulatory Documents;

(b)

it will, and will cause each of its Affiliates and Sublicensees and any of their respective directors, officers,
managers, employees, independent contractors, representatives or agents to, at all times, duly obtain and maintain all Approvals
from and complete all filings and registrations with the Governmental Authorities as required by Applicable Laws in a timely
manner for conducting its business and engaging in the activities as contemplated hereunder in compliance with all Applicable
Laws in all material respects;

(c)

during the Term, Qilu will promptly disclose and make available to Arbutus for review (i) all safety-related
data  for  the  Licensed  Compound  and  Licensed  Products  and  (ii)  all  material  non-clinical  and  clinical  data  for  the  Licensed
Compound  and  Licensed  Products,  in  each  case  of  (i)  and  (ii),  which  comes  into  the  possession  of  Qilu  or  its  Affiliates  or
Sublicensees  and  has  not  been  disclosed  or  otherwise  made  available  to  Arbutus  for  review  previously.  Qilu  shall  use
Commercially  Reasonable  Efforts  to  confirm  that  all  such  data  is  true  and  accurate  in  all  material  respects  as  of  the  time  it  is
disclosed or otherwise made available to Arbutus, which efforts shall in no event be less than the efforts Qilu would use if such
data  were  to  be  used  by  Qilu  in  its  own  Exploitation  of  the  Licensed  Compound  and  Licensed  Products  in  the  Field  in  the
Territory; and

(d)

it  will  not,  and  will  cause  each  of  its  Affiliates  and  Sublicensees  and  any  of  their  respective  directors,
officers,  managers,  employees,  independent  contractors,  representatives  or  agents  (collectively,  “Relevant  Persons”)  not  to,
engage directly or indirectly in transactions connected with any of North Korea, Iraq, Libya, Cuba, Iran, Myanmar or Sudan, or
otherwise engage directly or indirectly in transactions connected with any government, country or other entity or Person that is
the  target  of  U.S.  economic  sanctions  administered  by  the  Office  of  Foreign  Assets  Control  of  the  United  States  Treasury
Department, including those designated on its list of Specially Designated Nationals and Blocked Persons. No Relevant Person
will receive unlicensed donations or engaged in any financial transaction while knowing or having reasonable cause to believe
that such transaction poses a risk of furthering terrorist attacks anywhere in the world.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

47

9.6

Compliance with Anti-Corruption Laws.

(a)

Each  Party  agrees  on  behalf  of  itself,  its  Affiliates,  and  its  and  their  shareholders,  partners  officers,
directors, employees, agents and any other persons or entities acting on its behalf in connection with this Agreement (collectively,
the  “Section  9.6  Representatives”)  that  it  and  its  Section  9.6  Representatives,  from  and  after  the  Execution  Date,  when
performing its activities pursuant to and in connection with this Agreement:

shall  not  in  the  performance  of  this  Agreement  violate  any  applicable  anti-bribery  and  anti-
corruption  laws  or  regulations,  including  the  US  Foreign  Corrupt  Practices  Act,  the  UK  Bribery  Act  2010,  the  PRC
Criminal Law, the PRC Anti-Unfair Competition Law or other local law (collectively, the “Anti-Corruption Laws”);

(i)

(ii)

shall  adhere  to  its  own  internal  anticorruption  policies  and  shall  not,  in  the  performance  of  this
Agreement, directly or indirectly, make any payment, or offer or transfer anything of value, or agree or promise to make
any  payment  or  offer  or  transfer  anything  of  value,  to  a  government  official  or  government  employee,  to  any  political
party or any candidate for political office or to any other Third Party with the purpose of influencing decisions related to
either Party or its business in a manner that would violate Anti-Corruption Laws; and

(iii)

shall  not,  directly  or  indirectly,  solicit,  receive  or  agree  to  accept  any  payment  of  money  or

anything of value in violation of the Anti-Corruption Laws.

(b)

Each Party shall (i) promptly provide written notice to the other Party of any violations of Anti-Corruption
Laws by such Party, its Affiliates or its and their respective Section 9.6 Representatives that are performing under this Agreement
of which it becomes aware; and (ii) upon the request of the other Party (which such request may be made no more frequently than
once a year), verify in writing that to the best of its knowledge, there have been no violations of Anti-Corruption Laws by such
Party or its Section 9.6 Representatives that are performing under this Agreement, or shall provide details of any exception to the
foregoing.

(c)

Each  Party  shall  maintain  records  (financial  and  otherwise)  and  supporting  documentation  related  to  the
subject  matter  of  this  Agreement  as  required  under  applicable  Anti-Corruption  Laws,  including,  as  applicable,  the  accounting
provisions of the US Foreign Corrupt Practices Act. Should a violation of any applicable Anti-Corruption Laws be suspected by
either Party that is related to the Parties’ mutual business interests under this Agreement, then upon the suspecting party sharing
evidence  of  such  suspected  violation  with  the  suspected  Party,  the  suspected  Party  shall  provide  the  suspecting  Party  or  its
representative with access to such records for the limited purpose of verifying compliance with the provisions of this Section 9.6
as related to such specific suspected violation of the Anti-Corruption Laws. Such records shall constitute such suspected Party’s
Confidential Information.

compliance with Anti-Corruption Laws to the extent

(d)

Each  Party  has  established  and  maintains  reasonable  internal  policies  and  controls  intended  to  ensure

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

48

applicable to it under the laws of the jurisdiction of its incorporation, and to its actual knowledge, neither it nor any of its Section
9.6  Representatives  has  knowingly  violated  any  Anti-Corruption  Laws,  including  the  US  Foreign  Corrupt  Practices  Act,  that
would result in the other Party benefiting from such violation in connection with this Agreement.

9.7

Compliance  with  Law.  Each  Party  hereby  covenants  to  the  other  Party  that,  in  the  course  of  performing  its
obligations  and  exercising  its  rights  under  this  Agreement,  such  Party  shall,  to  the  extent  applicable,  perform  its  activities
pursuant to this Agreement in compliance with all Applicable Laws, including cGLP, cGMP, cGCP and cGVP, and with respect
to Qilu any Applicable Laws concerning the protection, collection, use, storage, processing or transfer of personal data, important
commercial  data  and  human  genetic  resources  materials  and  information  (as  such  terms  are  defined  under  the  PRC  Human
Genetic Resources Administrative Regulations (i.e.中华人民共和国人类遗传资源管理条例) promulgated by the State Council
of  the  PRC  effective  as  of  July  1,  2019,  as  may  be  amended  from  time  to  time),  the  published  standards  of  any  applicable
Regulatory Authorities, and the scientific standards applicable to the conduct of such activities, if any. Arbutus  represents  and
warrants that all items, including hardware, materials, software, and technology, to be provided to Qilu under this Agreement will
be classified as EAR99 under the U.S. Export Administration Regulations, unless otherwise agreed to in advance in writing by
the  Parties.  Arbutus  will  provide  Qilu  with  accurate  and  complete  information  regarding  the  Arbutus  IP  that  is  reasonably
necessary for Qilu to comply with U.S. export laws, including all applicable Export Control Classification Numbers (ECCNs),
information regarding eligibility of the Arbutus IP for license exceptions, and any other information reasonably requested by Qilu
from time to time for the purposes of export. Arbutus further agrees to promptly inform Qilu of any changes to such information,
including as a result of changes to the applicable U.S. export laws or regulations.

9.8

Data Protection. Each Party will comply with Applicable Law relating to data privacy, data protection, and data
security, including as they relate to the protection of the personal information of Clinical Trial participants, including the Health
Insurance  Portability  and  Accountability  Act  of  1996,  as  amended  by  the  Health  Information  Technology  for  Economic  and
Clinical Health (HITECH) Act, and any regulations and official guidance promulgated thereunder or foreign equivalent thereof.
The Parties will enter into any additional agreements that are required under Applicable Law with respect to data privacy in order
to conduct the activities contemplated by this Agreement.

9.9

NO  OTHER  WARRANTIES.  EXCEPT  AS  EXPRESSLY  STATED  IN  THIS  ARTICLE  9,  (A)  NO
REPRESENTATION,  CONDITION  OR  WARRANTY  WHATSOEVER  IS  MADE  OR  GIVEN  BY  OR  ON  BEHALF  OF
ARBUTUS OR QILU; AND (B) ALL OTHER CONDITIONS AND WARRANTIES WHETHER ARISING BY OPERATION
OF LAW OR OTHERWISE ARE EXPRESSLY DISCLAIMED, INCLUDING ANY CONDITIONS AND WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OR MISAPPROPRIATION
OF  THIRD  PARTY  INTELLECTUAL  PROPERTY  WITH  RESPECT  TO  THE  LICENSED  COMPOUND  OR  LICENSED
PRODUCT.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

49

ARTICLE 10
INDEMNIFICATION

10.1 By  Qilu.  Qilu  shall  indemnify,  defend  and  hold  harmless  Arbutus,  its  Affiliates,  and  their  directors,  officers,
employees  and  agents,  and  their  respective  successors,  heirs  and  assigns  (individually  and  collectively,  the  “Arbutus
Indemnitee(s)”)  from  and  against  all  losses,  liabilities,  damages,  judgments,  awards,  costs  and  expenses  (including  reasonable
attorneys’ fees) (individually and collectively, “Losses”) incurred in connection with any claims, demands, actions, suits or other
proceedings  by  any  Third  Party  (individually  and  collectively,  “Third  Party  Claims”)  to  the  extent  arising  from:  (a)  the
Exploitation  of  the  Licensed  Products  by  or  on  behalf  of  Qilu  or  any  of  its  Affiliates,  Sublicensees  or  Subcontractors;  (b)  the
gross  negligence  or  willful  misconduct  of  Qilu  or  its  Affiliates,  Sublicensees  or  Subcontractors,  or  any  Qilu  Indemnitees;
(c) Qilu’s breach of any of its representations, warranties, covenants or obligations made in or pursuant to this Agreement, the
Clinical  Supply  Agreement,  the  Commercial  Supply  Agreement,  the  Quality  Agreement  or  the  Pharmacovigilance  Agreement
(the “Related Agreements”); (d) the use of the Licensed Compound, Licensed Product or the Arbutus IP outside the scope of this
Agreement; or (e) failure of Qilu or its Affiliates, Sublicensees or Subcontractors to abide by any Applicable Laws, in each case
of clauses (a) through (e) above, except to the extent such Losses arise out of any matter for which Arbutus has obligations of
indemnification  pursuant  to  Section  10.2,  with  respect  to  which  each  Party  will  indemnify  the  other  in  proportion  to  their
respective liability for such Losses.

10.2 By Arbutus. Arbutus shall indemnify, defend and hold harmless Qilu, its Affiliates, and their directors, officers,
employees and agents, and their respective successors, heirs and assigns (individually and collectively, the “Qilu Indemnitee(s)”)
from and against all Losses incurred in connection with any Third Party Claims to the extent arising from: (a) the Exploitation of
the Licensed Compound or the Licensed Products by or on behalf of Arbutus or any of its Affiliates, Third Party Licensees or
Subcontractors;  (b)  the  gross  negligence  or  willful  misconduct  of  Arbutus  or  its  Affiliates,  Third  Party  Licensees  or
Subcontractors,  or  any  Arbutus  Indemnitees;  (c)  Arbutus’  breach  of  any  of  its  representations,  warranties,  covenants  or
obligations made in or pursuant to this Agreement or any of the Related Agreements; or (d) failure of Arbutus or its Affiliates,
Third Party Licensees or Subcontractors to abide by any Applicable Laws, in each case of clauses (a) through (d) above, except
to the extent such Losses arise out of any matter for which Qilu has obligations of indemnification pursuant to Section 10.1, with
respect to which each Party will indemnify the other in proportion to their respective liability for such Losses.

10.3

Indemnification  Procedure.  In  the  event  that  a  Party  seeks  indemnification  hereunder  with  respect  to  a  Third
Party  Claim,  the  Party  seeking  indemnification  (the  “Indemnified  Party”)  shall  promptly  notify  the  other  Party  (the
“Indemnifying Party”) in writing (an “Indemnification Claim Notice”) of any Third Party Claim in respect of which it intends to
claim  indemnification  under  this  ARTICLE  10  upon  actual  knowledge  of  any  such  claim  or  proceeding  resulting  in  Losses,
provided, however, that any delay to notify shall not excuse any obligation of the Indemnifying Party except to the extent such
delay materially prejudices the defense of such Third Party Claim. The Indemnification Claim Notice must contain a description
of the claim and the nature and amount of such Losses (to the extent that the nature and amount of such Losses is known at such
time).  The  Indemnifying  Party  may,  at  its  option,  assume  exclusive  control  of  the  defense  and  settlement  of  the  Third  Party
Claim, subject to the limitations on settlement set

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

50

forth  below.  If  the  Indemnifying  Party  assumes  such  defense,  then  such  assumption  by  the  Indemnifying  Party  will  not  be
construed as an acknowledgement that the Indemnifying Party is liable to indemnify the Indemnified Party of any defenses it may
assert against the Indemnified Party’s claim for indemnification and the Indemnifying Party may appoint as lead counsel in the
defense of the Third Party Claim any legal counsel selected by the Indemnifying Party (the Indemnifying Party will consult with
the  Indemnified  Party  with  respect  to  a  possible  conflict  of  interest  of  such  counsel  retained  by  the  Indemnifying  Party).  The
Indemnified Party will have the right to participate in the defense thereof and to employ counsel, at its own expense, separate
from the counsel employed by the Indemnifying Party. If the Indemnifying Party does not commence actions to assume control of
the defense of a Third Party Claim within [***] after the receipt by the Indemnifying Party of the Indemnification Claim Notice
required pursuant to this Section 10.3, the Indemnified Party will have the right to defend such claim in such manner as it may
deem appropriate at the reasonable cost and expense of the Indemnifying Party. The Indemnified Party shall cooperate as may be
reasonably  requested  by  the  Indemnifying  Party  (and  at  the  Indemnifying  Party’s  expense)  in  order  to  ensure  the  proper  and
adequate  defense  of  any  action,  claim  or  liability  covered  by  this  indemnification.  The  Indemnifying  Party  may  not  settle  or
otherwise  dispose  of  any  Third  Party  Claim  without  the  prior  written  consent  of  the  Indemnified  Party  unless  such  settlement
includes  only  the  payment  of  monetary  damages  (which  are  fully  paid  by  the  Indemnifying  Party),  does  not  impose  any
injunctive or equitable relief upon the Indemnified Party, does not require any admission or acknowledgment of liability or fault
of the Indemnified Party and contains an unconditional release of the Indemnified Party in respect of such Third Party Claim.
Regardless of whether the Indemnifying Party chooses to defend or prosecute any Third Party Claim, no Indemnified Party will
admit any liability with respect to or settle or otherwise dispose of any Third Party Claim for which the Indemnifying Party may
be liable for Losses under this Agreement without the prior written consent of the Indemnifying Party, such consent not to be
unreasonably withheld.

10.4 Mitigation of Loss. Each Indemnified Party shall take and shall procure that its Affiliates take all such reasonable
steps and actions as are reasonably necessary or as the Indemnifying Party may reasonably require in order to mitigate any claims
(or potential losses or damages) under this ARTICLE 10. Nothing in this Agreement shall or shall be deemed to relieve any Party
of any common law or other duty to mitigate any losses incurred by it.

10.5 Limitation  of  Liability.  NEITHER  PARTY  SHALL  BE  LIABLE  TO  THE  OTHER  PARTY  FOR  ANY
SPECIAL,  CONSEQUENTIAL,  INCIDENTAL,  PUNITIVE,  OR  INDIRECT  DAMAGES  ARISING  OUT  OF  THIS
AGREEMENT  OR  THE  EXERCISE  OF  ITS  RIGHTS  OR  THE  PERFORMANCE  OF  ITS  OBLIGATIONS  HEREUNDER,
INCLUDING ANY LOST PROFITS ARISING OUT OF THIS AGREEMENT, IN EACH CASE, HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT, TORT, NEGLIGENCE, BREACH OF STATUTORY DUTY
OR OTHERWISE, REGARDLESS OF ANY NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. NOTWITHSTANDING
THE  FOREGOING,  NOTHING  IN  THIS  SECTION  10.5  IS  INTENDED  TO  OR  SHALL  LIMIT  OR  RESTRICT  THE
INDEMNIFICATION  RIGHTS  OR  OBLIGATIONS  OF  EITHER  PARTY  UNDER  SECTION  10.1  OR  SECTION  10.2,  OR
DAMAGES AVAILABLE FOR A PARTY’S BREACH OF ITS OBLIGATIONS UNDER ARTICLE 8.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

51

10.6

Insurance.  Each  Party  shall  procure  and  maintain  insurance,  including  Clinical  Trial  insurance  and  product
liability insurance, with respect to its activities hereunder that is consistent with normal business practices of prudent companies
similarly situated at all times during which any Licensed Product is being clinically tested in human subjects or commercially
distributed or sold. Each Party shall provide the other Party with evidence of such insurance upon request. Notwithstanding the
foregoing,  either  Party  may  self-insure  in  whole  or  in  part  the  insurance  requirements  described  above,  provided  such  Party
continues  to  be  investment  grade  determined  by  reputable  and  accepted  financial  rating  agencies.  Such  insurance  shall  not  be
construed to create a limit of each Party’s liability with respect to its indemnification obligations under this ARTICLE 10.

11.1 Ownership.

ARTICLE 11
INTELLECTUAL PROPERTY

Subject  to  the  licenses  granted  by  Arbutus  herein,  Arbutus  is  and  shall  at  all  times  remain  the  sole  and
exclusive owner of the Arbutus IP, the Arbutus Materials and all Confidential Information of Arbutus disclosed by or on behalf of
Arbutus to Qilu pursuant to this Agreement.

(a)

(b)

As between the Parties, Inventions conceived or created by or on behalf of one or both of the Parties in the
course of performing activities under this Agreement that (1) constitute an improvement or enhancement of any Arbutus IP, or (2)
are  derived  from  or  use  the  Arbutus  IP,  the  Arbutus  Materials  or  Arbutus’  Confidential  Information,  including  any  such
Inventions relating to the Licensed Compound, together with any intellectual property rights relating to such Inventions, shall be
owned as follows:

(i)

Any  such  Inventions  conceived  solely  by  or  on  behalf  of  Qilu  and  all  intellectual  property  rights

therein shall be owned solely by Qilu (the “Qilu New IP”);

therein shall be owned solely by Arbutus (the “Arbutus New IP”); and

(ii)

Any such Inventions conceived solely by or on behalf of Arbutus and all intellectual property rights

property rights therein shall be owned jointly by Qilu and Arbutus (the “Joint New IP”).

(iii)

Any  such  Inventions  conceived  jointly  by  or  on  behalf  of  Qilu  and  Arbutus  and  all  intellectual

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

52

Each Party shall assign and hereby assigns to the other Party one-half (1/2) undivided interest it may have in any Joint New IP,
and  shall  cause  its  Affiliates  and  Sublicensees  or  Third  Party  Licensees,  as  applicable,  to  execute  and  deliver  such  additional
documents, instruments, conveyances and assurances and take any such further actions as may be reasonably required to ensure
that one-half (1/2) undivided interest in the Joint New IP is effectively assigned to and held by the other Party. Each Party shall
cause  its  Affiliates  and  Sublicensees  or  Third  Party  Licensees,  as  applicable,  and  all  of  its  and  its  Affiliates’  employees,
consultants and agents, who in each case conceived of or created any Joint New IP, to assign without additional consideration all
ownership rights in such Joint New IP to such Party.

For clarity, to the extent any Arbutus New IP or Joint New IP constitutes any Arbutus IP, such Arbutus New IP or Joint New IP
shall  be  automatically  included  in  the  License  without  additional  consideration;  provided,  that  the  Parties  agree  that
notwithstanding  any  terms  in  this  Agreement  to  the  contrary,  any  Patent  Right  included  within  the  Joint  New  IP  shall  not  be
royalty-bearing under Section 7.5.

(c) Qilu shall grant and hereby grants to Arbutus and its Affiliates an exclusive, royalty-free, fully paid-up, perpetual,
irrevocable,  and  sublicensable  (through  multiple  tiers)  license  under  Qilu’s  rights  in  the  Qilu  New  IP  and  the  Joint  New  IP  to
Exploit the Licensed Compound and Licensed Products in the Field in the ROW Territory.

(d) Any Product Data relating to the Territory generated by Qilu and its Affiliates and Sublicensees shall be owned
solely by Qilu; provided, that Arbutus shall have the right to use the Product Data to Exploit the Licensed Compound and the
Licensed Products in the ROW Territory (or to seek any approvals from a Regulatory Authority required for the Development or
Manufacturing of the Licensed Product in the Territory in accordance with Arbutus’ retained rights) in accordance with Section
4.5.

(e) Notwithstanding  the  foregoing,  each  Party  shall  own  and  retain  ownership  of  all  Know-How  and  Patent  Rights
owned by such Party as of the License Effective Date or that come into the Control of such Party during the Term outside the
scope of this Agreement.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

53

11.2

Patent Prosecution.

(a)

Arbutus Patents.

(i)

As  between  the  Parties,  Arbutus  shall  have  the  first  right,  but  not  the  obligation,  to  control,  at
Arbutus’  cost  and  in  consultation  with  Qilu,  the  Patent  Prosecution  of  all  Arbutus  Patents  in  the  Territory.  Without
limiting the foregoing, Arbutus shall file Arbutus Patents in the Territory claiming any Arbutus Know-How identified by
Qilu  as  suitable  for  patenting  purposes,  as  reasonably  requested  by  Qilu,  provided,  however,  that  if  prosecuting  such
Know-How  would  materially  harm  Arbutus,  Arbutus’  Patent  Rights  strategy  or  Patents  Rights  with  respect  to  other
products,  Arbutus  will  notify  Qilu  of  such  circumstance  and  shall  not  be  required  to  prosecute  Patent  Rights  claiming
such Know-How (nor shall Qilu have the right under this Section 11.2(a)(i)  to  file  a  patent  application  in  the  Territory
claiming such Arbutus Know-How). If Arbutus intends to abandon the Patent Prosecution of any Arbutus Patent in the
Territory,  Arbutus  shall  give  Qilu  prompt  notice  thereof  (not  less  than  thirty  (30)  days  before  any  action  is  required  to
avoid abandonment or lapse), and Qilu shall have the right to continue such Patent Prosecution of such Arbutus Patent in
the Territory at Qilu’s cost. To effect Qilu’s right to assume Arbutus’ prosecution rights and obligations with respect to
any Arbutus Patent in the Territory pursuant to this Section 11.2(a)(i), Arbutus shall reasonably cooperate with and assist
Qilu in connection with its activities under this Section 11.2(a)(i), upon Qilu’s reasonable request, including by making
scientists  and  scientific  records  reasonably  available  and  the  execution  of  all  such  documents  and  instruments  and  the
performance of such acts as may be reasonably necessary in order to permit Qilu to continue any Patent Prosecution of
such Arbutus Patent.

Arbutus Patents outside the Territory.

(ii)

Arbutus  shall  have  the  sole  right  to  control,  in  its  sole  discretion,  the  Patent  Prosecution  of  all

(iii)

The  Party  conducting  Patent  Prosecution  of  any  Patent  Right  under  Section 11.2(a)  shall  consult
with the other Party and keep such other Party reasonably informed of the Patent Prosecution of the Patent Rights in the
Territory. The prosecuting Party  shall  provide  the  other  Party  with  copies  of  all  material correspondence received from
any  patent  authority  in  the  Territory  in  connection  therewith.  In  addition,  the  prosecuting  Party  shall  provide  the  other
Party with drafts of all proposed material filings and correspondence to any patent authority in the Territory in connection
with  the  Patent  Prosecution  of  the  Patents  Right  at  least  thirty  (30)  days  prior  (or  such  shorter  period  prior  if  it  is  not
reasonably practicable to provide such copies thirty (30) days prior) to filing to allow for review and comment by such
other Party, and shall consider in good faith timely comments from such other Party thereon. The prosecuting Party shall
also furnish the other Party with copies of all final filings and responses made to any patent authority in the Territory with
respect to the Patent Rights being prosecuted by such Party in a timely manner following submission thereof.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

54

(b)

Qilu New IP. As between the Parties, Qilu shall have the first right, but not the obligation, to control, at
Qilu’s cost, the Patent Prosecution of all Patent Rights included within the Qilu New IP. If Qilu intends to abandon the Patent
Prosecution of any such Patent Right in the ROW Territory, Qilu shall give Arbutus prompt notice thereof (not less than thirty
(30) days before any action is required to avoid abandonment or lapse), and Arbutus shall have the right to continue such Patent
Prosecution of such Qilu New IP in the ROW Territory at Arbutus’ cost. To effect Arbutus’ right to assume Qilu’s prosecution
rights  and  obligations  with  respect  to  any  such  Patent  Right  in  the  ROW  Territory  pursuant  to  this  Section 11.2(b),  Qilu  shall
reasonably  cooperate  with  and  assist  Arbutus  in  connection  with  its  activities  under  this  Section  11.2(b),  upon  Arbutus’
reasonable  request,  including  by  making  scientists  and  scientific  records  reasonably  available  and  the  execution  of  all  such
documents  and  instruments  and  the  performance  of  such  acts  as  may  be  reasonably  necessary  in  order  to  permit  Arbutus  to
continue any Patent Prosecution of such Patent Right.

(c)

Other Patents. Except as expressly set forth in this Section 11.2, each Party shall have the sole right, in its
sole discretion, to conduct Patent Prosecution with respect to any and all Patent Rights owned or Controlled by such Party, and
the Parties shall negotiate in good faith their respective rights in and responsibilities for Patent Prosecution with respect to any
and all Patent Rights within the Joint New IP.

Cooperation.  Each  Party  shall  provide  the  other  Party  all  reasonable  assistance  and  cooperation  in  the
Patent Prosecution efforts under this Section 11.2, including providing any necessary powers of attorney and executing any other
required documents or instruments for such prosecution.

(d)

11.3

Patent Enforcement.

(a)

Notice. Each Party shall promptly notify the other Party of becoming aware of any alleged or threatened
infringement by a Third Party of any of the Arbutus Patents or any related declaratory judgment or equivalent action alleging the
invalidity, unenforceability or non-infringement of any Arbutus Patents anywhere in the world.

(b)

Enforcement Rights.

(i)

Qilu shall have the first right, but not the obligation, in its sole discretion, to bring and control any
legal action to enforce the Arbutus Patents against any Third Party engaged in any potential or actual infringement of the
Arbutus Patents related to a compound or product that competes with (or that would compete with if commercialized) a
Licensed Compound or a Licensed Product in the Field in the Territory (a “Product Infringement”); provided, that Qilu
shall not take any position with respect to such proceeding in any way that is reasonably likely to directly and adversely
affect the scope, validity or enforceability of the Arbutus Patents, or compromise or settle any such proceeding, without
the  prior  written  consent  of  Arbutus,  which  consent  shall  not  be  unreasonably  withheld,  conditioned  or  delayed.  For
clarity, Product Infringement excludes any adversarial Patent Prosecution proceedings. Qilu shall give Arbutus advance
notice of Qilu’s intent to file any such suit or take any such action and the reasons therefor, and shall provide Arbutus with
an opportunity to make suggestions or comments regarding

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

55

such  suit  or  action.  Thereafter,  Qilu  shall  keep  Arbutus  promptly  informed,  and  shall  from  time  to  time  consult  with
Arbutus regarding the status of any such suit or action. In the event Qilu does not bring any such legal action within sixty
(60) days of receiving notice of such Product Infringement (or settle or otherwise secure the abatement of such Product
Infringement action), or ceases to diligently pursue such Product Infringement action, Arbutus may bring and control any
legal action to enforce the Arbutus Patents against such Product Infringement at its sole cost.

Arbutus shall have the sole right, but not the obligation, in its sole discretion, to bring and control
any legal action to enforce Arbutus Patents against any infringement in the ROW Territory; provided that Arbutus notifies
Qilu of any such legal action reasonably in advance, and considers in good faith Qilu’s comments with respect thereto.

(ii)

(c)

Other Patents. Except as expressly set forth in this Section 11.3, each Party shall have the sole right, in its
sole  discretion,  to  enforce  against  any  infringement  of  any  and  all  Patent  Rights  owned  or  Controlled  by  such  Party,  and  the
Parties shall negotiate in good faith their respective rights in and responsibilities for enforcement of any and all Patent Rights
within the Joint New IP.

(d)

Cooperation.  At  the  request  of  the  Party  bringing  an  action  under  this  Section  11.3(d),  the  other  Party
shall  provide  reasonable  assistance  in  connection  therewith,  including  by  executing  reasonably  appropriate  documents,
cooperating in discovery, facilitating registration of licenses and joining as a party to the action if required by Applicable Law to
pursue such action.

(e)

Recoveries. Any recoveries resulting from any action under Section 11.3(b)(i) in the Territory shall be first
applied  against  payment  of  each  Party’s  costs  and  expenses  in  connection  therewith  (with  priority  given  to  the  Party  bringing
such action), and then any remaining recoveries shall be allocated as follows: (i) if Qilu is the Party bringing such action, then
such remaining recoveries shall be retained by Qilu and treated as Net Sales subject to the payment of royalties in accordance
with Section 7.5; and (ii) if Arbutus is the Party bringing such action, then such remaining recoveries shall be retained in full by
Arbutus.

11.4

Infringement of Third Party Rights.

(a)

Notice.  If  (i)  any  Licensed  Compound  or  Licensed  Product  used  or  sold  by  Qilu,  its  Affiliates  or
Sublicensees in the Territory becomes the subject of a Third Party’s claim or assertion of infringement of a Patent Right or other
rights in the Territory that are owned or controlled by such Third Party, or (ii) any Licensed Compound or Licensed Product used
or sold by Arbutus, its Affiliates or Third Party Licensees in the Territory or the ROW Territory becomes the subject of a Third
Party’s claim or assertion of infringement of a Patent Right or other rights in the ROW Territory, then the Party becoming aware
of such claim or assertion shall promptly notify the other Party within fifteen (15) days after receipt of such claim or assertion
and such notice shall include a copy of any summons or complaint (or the equivalent thereof) received regarding the foregoing.
The  Parties  shall  assert  and  not  waive  the  joint  defense  privilege  with  respect  to  any  communications  between  the  Parties  in
connection with the defense of such claim or assertion.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

56

(b)

Defense  by  Qilu.  As  between  the  Parties,  Qilu  shall  be  solely  responsible  for  the  defense  of  any  such
infringement claims in the Field in the Territory with respect to the activities of Qilu, its Affiliates or Sublicensees; provided, that
Qilu shall not agree to any settlement, consent to judgment or other voluntary final disposition in connection with such defense
action  without  Arbutus’  consent  (such  consent  not  to  be  unreasonably  withheld,  conditioned  or  delayed)  if  such  settlement,
consent to judgment or other voluntary final disposition would (i) result in the admission of any liability or fault on behalf of
Arbutus, (ii) result in or impose any payment obligations upon Arbutus, or (iii) subject Arbutus to an injunction or otherwise limit
Arbutus’  ability  to  take  any  actions  or  refrain  from  taking  any  actions  under  this  Agreement  or  with  respect  to  any  Licensed
Compound or Licensed Product. Qilu shall use Commercially Reasonable Efforts to defend any such infringement claims in the
Field in the Territory with respect to the activities of Qilu, its Affiliates or Sublicensees. In the event, despite such Commercially
Reasonable  Efforts,  Qilu  does  not  prevail  in  such  defense  action,  Qilu  shall  use  Commercially  Reasonable  Efforts  to  obtain  a
license  from  the  applicable  Third  Party  under  the  asserted  Patent  Rights  or  other  rights  in  the  Territory  so  that  Qilu  or  its
Affiliates or Sublicensees, as the case may be, may continue the Exploitation of the Licensed Compound and Licensed Products
in the Field in the Territory as contemplated hereunder. Qilu shall keep Arbutus informed on the status of such defense action and
license negotiation, and Arbutus shall, at its own expense, (A) provide reasonable support to Qilu upon Qilu’s reasonable request;
and  (B)  have  the  right,  but  not  the  obligation,  to  participate  or  be  separately  represented  in  such  defense  action  or  license
negotiation at its sole option and expense. In the event, despite Qilu’s Commercially Reasonable Efforts, Qilu fails to obtain a
license  from  the  applicable  Third  Party  under  the  asserted  Patent  Rights  or  other  rights  in  the  Territory  on  commercially
reasonable  terms  so  that  Qilu  or  its  Affiliates  or  Sublicensees,  as  the  case  may  be,  are  permanently  enjoined,  prohibited  or
otherwise  prevented  from  continuing  the  Exploitation  of  the  Licensed  Compound  or  Licensed  Products  in  the  Field  in  the
Territory as contemplated hereunder, Qilu may terminate this Agreement pursuant to Section 12.2(a). For clarity, from and after
the date of the notice of termination pursuant to Section 12.2(a) and before the effective date of termination, Qilu shall have no
further  obligations  under  Sections  4.1(a),  4.1(b),  4.1(c)  or  6.1(a)  of  this  Agreement,  and  upon  written  agreement  between  the
Parties, this Agreement may terminate earlier than the effective date of termination set forth in such notice.

(c)

Defense by Arbutus. As between the Parties, Arbutus shall be solely responsible for the defense of any
such  infringement  claims  with  respect  to  the  activities  of  Arbutus,  its  Affiliates  or  Third  Party  Licensees,  including  any  such
infringement claim in the Territory or in the ROW Territory; provided, that Arbutus shall not agree to any settlement, consent to
judgment or other voluntary final disposition in connection with such defense action without Qilu’s consent (such consent not to
be unreasonably withheld, conditioned or delayed) if such settlement, consent to judgment or other voluntary final disposition
would (i) result in the admission of any liability or fault on behalf of Qilu, (ii) result in or impose any payment obligations upon
Qilu, or (iii) subject Qilu to an injunction or otherwise limit Qilu’s ability to take any actions or refrain from taking any actions
under this Agreement or with respect to any Licensed Compound or Licensed Product. Arbutus shall keep Qilu informed on the
status  of  such  defense  action,  and  Qilu  shall,  at  its  own  expense,  (A)  provide  reasonable  support  to  Arbutus  upon  Arbutus’
reasonable  request;  and  (B)  have  the  right,  but  not  the  obligation,  to  participate  or  be  separately  represented  in  such  defense
action at its sole option and expense.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

57

11.5 Qilu Territory Trademarks.

(a)

Ownership and Prosecution of Qilu Territory Trademarks. Qilu shall own all right, title, and interest in
and to the Qilu Territory Trademarks (including relevant registrations and applications), and shall have the first right, but not the
obligation, for the registration, prosecution, maintenance and renewal thereof. All costs and expenses of registration, prosecuting,
maintaining and renewing the Qilu Territory Trademarks shall be borne solely by Qilu. If Qilu intends to abandon the prosecution
of (including any decision to not renew) any Qilu Territory Trademark in the Territory, Qilu shall give Arbutus prompt notice
thereof (not less than fifteen (15) days before any action is required to avoid abandonment or lapse), and Arbutus shall have the
right to continue such prosecution of such Qilu Territory Trademark in the Territory at its sole cost.

(b)

Enforcement  of  Qilu  Territory  Trademarks  and  Licensed  Product-Specific  Trademarks.  Qilu  shall
have the first right, but not the obligation, for taking such action as Qilu deems necessary against a Third Party based on any
alleged,  threatened,  or  actual  infringement,  dilution,  or  other  violation  of,  or  unfair  trade  practices  or  any  other  like  offense
relating to, the Qilu Territory Trademarks or the Licensed Product-Specific Trademarks by a Third Party in the Territory. Qilu
shall  bear  the  costs  and  expenses  relating  to  any  enforcement  action  commenced  pursuant  to  this  Section  11.5(b)  and  any
settlements and judgments with respect thereto, and shall retain any damages or other amounts collected in connection therewith.
Subject to the foregoing, Arbutus may elect at its expense to participate in the enforcement of the Qilu Territory Trademarks or
the Licensed Product-Specific Trademarks in the Territory. In the event that Qilu declines to or fails to assume responsibility for
such enforcement, and to the extent permitted by Applicable Laws, Arbutus shall have the sole right and responsibility for such
action,  in  which  case  Arbutus  shall  bear  all  costs  and  expenses  and  shall  retain  any  damages  or  other  amounts  collected  in
connection therewith.

(c)

Third Party Claims. Qilu shall have the sole right and responsibility for defending against any alleged,
threatened, or actual claim by a Third Party that the use or registration of the Qilu Territory Trademarks or the Licensed Product-
Specific Trademarks by Qilu, its Affiliates or Sublicensees in the Territory infringes, dilutes or otherwise violates any Trademark
or  other  right  of  that  Third  Party  or  constitutes  unfair  trade  practices  or  any  other  like  offense,  or  any  other  claims  as  may  be
brought  by  a  Third  Party  against  a  Party  in  connection  with  the  use  or  registration  of  the  Qilu  Territory  Trademarks  or  the
Licensed  Product-Specific  Trademarks  by  Qilu,  its  Affiliates  or  Sublicensees  in  the  Territory.  Qilu  shall  bear  the  costs  and
expenses  relating  to  any  defense  commenced  pursuant  to  this  Section 11.5(c)  and  any  settlements  and  judgments  with  respect
thereto, and shall retain any damages or other amounts collected in connection therewith.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

58

(d)

Notice and Cooperation. Each Party shall provide to the other Party prompt written notice of any actual
or threatened infringement of the Qilu Territory Trademarks or the Licensed Product-Specific Trademarks in the Territory and of
any actual or threatened claim that the use of the Qilu Territory Trademarks or the Licensed Product-Specific Trademarks in the
Territory  violates  the  rights  of  any  Third  Party.  Each  Party  agrees  to  cooperate  fully  with  the  other  Party  with  respect  to  any
enforcement  action  or  defense  commenced  pursuant  to  this  Section 11.5(d),  including  cooperation  required  to  permit  required
registration of trademark licenses within the Territory.

11.6 Common  Interest  Agreement.  All  information  exchanged  between  the  Parties  regarding  the  prosecution  and
maintenance, and enforcement and defense, of Arbutus Patents under this ARTICLE 11 will be deemed Confidential Information
of the Disclosing Party. In addition, the Parties acknowledge and agree that, with regard to such prosecution and maintenance,
and  enforcement  and  defense,  the  interests  of  the  Parties  as  collaborators  and  licensor  and  licensee  are  to  obtain  the  strongest
patent protection possible, and as such, are aligned and are legal in nature. The Parties agree and acknowledge that they have not
waived,  and  nothing  in  this  Agreement  constitutes  a  waiver  of,  any  legal  privilege  concerning  the  Patent  Rights  under  this
ARTICLE 11, including privilege under the common interest doctrine and similar or related doctrines. Notwithstanding anything
to the contrary contained herein, to the extent a Party has a good faith belief that any information required to be disclosed by such
Party to the other Party under this ARTICLE 11 is protected by attorney-client privilege or any other applicable legal privilege or
immunity, such Party will not be required to disclose such information, and the Parties will in good faith cooperate to agree upon
a procedure (including entering into a specific common interest agreement, disclosing such information on a “for counsel eyes
only” basis or similar procedure) under which such information may be disclosed without waiving or breaching such privilege or
immunity.

11.7 Registration Obligations.

(a)

If  required  by  Applicable  Law,  Qilu  shall  have  the  right  to  register  this  Agreement  with  all  applicable
Regulatory  Authorities  in  the  Territory.  Arbutus  shall  reasonably  cooperate  with  Qilu  at  Qilu’s  expense  in  obtaining  any  such
registrations, including providing relevant documents required by the applicable Regulatory Authorities in the Territory.

(b)

Upon the request of Arbutus, Qilu shall promptly provide to Arbutus certified true and complete copies of
any  registration  certificates  as  well  as  any  other  relevant  documentation  received  by  Qilu  in  connection  with  any  registration
undertaken by Qilu in accordance with this Section 11.7, including English translations of the same, if appropriate.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

59

ARTICLE 12
TERMS AND TERMINATION

12.1 Term. This Agreement shall become effective as of the Execution Date (the “License Effective Date”), and shall
continue,  unless  terminated  earlier  in  accordance  with  this  ARTICLE 12,  until  expiration  of  the  last  Royalty  Term  for  the  last
Licensed Product in the Field in the Territory (the “Term”). On a Licensed Product-by-Licensed Product and Relevant Region-
by-Relevant Region basis, upon the expiration of this Agreement, the License shall become exclusive, transferable, sublicensable
(through multiple tiers of Sublicensees), fully paid-up, royalty-free, irrevocable and perpetual. If Qilu has not paid the Upfront
Payment  in  accordance  with  Section  7.1,  this  Agreement  shall  be  deemed  to  be  terminated  and  null  and  void  in  its  entirety
immediately upon written notice by Arbutus to Qilu.

12.2 Termination.

(a)

Termination  by  Qilu  for  Convenience.  At  any  time  following  the  License  Effective  Date,  Qilu  may
terminate  this  Agreement  in  its  entirety  for  convenience  by  providing  written  notice  of  termination  to  Arbutus,  which  notice
includes an effective date of termination at [***] after the date of the notice.

(b)

Termination for Material Breach.

(i)

If either Party believes in good faith that the other Party is in material breach of this Agreement,
then the non-breaching Party may deliver written notice of such breach to the other Party. For any such alleged material
breach, the allegedly breaching Party shall have [***] from the receipt of the initial notice to cure such breach (or in the
case  of  any  payment  breach  other  than  with  respect  to  the  Upfront  Payment,  [***]).  If  the  Party  receiving  notice  of
material breach fails to cure the breach within such [***] (or other applicable cure period for a payment breach), then the
non-breaching Party may terminate this Agreement in its entirety effective on written notice of termination to the other
Party. Notwithstanding the foregoing, if such material breach (other than a payment breach), by its nature, is curable, but
is not reasonably curable within the [***] cure period, then such period shall be extended if the breaching Party provides
a written plan for curing such breach to the non-breaching Party and uses commercially reasonable efforts to cure such
breach  in  accordance  with  such  written  plan;  provided,  that  no  such  extension  shall  exceed  an  additional  [***]  days
without the consent of the non-breaching Party.

(ii)

In  case  the  Party  alleged  under  Section  12.2(b)(i)  to  have  committed  a  material  breach  of  this
Agreement (the “Defaulting Party”) by the other Party (the “Non-Defaulting Party”) disputes the existence or materiality
of such material breach, then the issue of whether the Non-Defaulting Party may properly terminate this Agreement on
expiration of the applicable cure period shall be resolved in accordance with Section 13.6 and Section 13.7. If, as a result
of  such  dispute  resolution  proceeding,  it  is  determined  that  the  Defaulting  Party  committed  a  material  breach  and  the
Defaulting  Party  does  not  cure  such  material  breach  within  [***]  after  the  date  of  such  determination  (the  “Additional
Cure Period”), then such termination shall be effective as of the expiration of the Additional Cure

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

60

Period.  If  the  Parties  dispute  whether  such  material  breach  was  so  cured,  such  dispute  shall  also  be  determined  in
accordance  with  Section  13.6  and  Section  13.7.  This  Agreement  shall  remain  in  full  force  and  effect  while  any  such
dispute resolution proceeding is pending, such proceeding shall not suspend any obligations of either Party hereunder, and
each Party shall use reasonable efforts to mitigate any damage. If, as a result of such dispute resolution proceeding, it is
determined that (A) the Defaulting Party did not commit such breach, (B) such breach was not material or (C) such breach
was  cured  in  accordance  with  this  Section  12.2(b),  then  no  termination  shall  be  effective,  and  this  Agreement  shall
continue in full force and effect.

(c)

Termination by Arbutus for Patent Challenges. Arbutus has the right, in its sole discretion, to terminate
this Agreement in its entirety upon written notice to Qilu, in the event that Qilu or any of its Affiliates or Sublicensees directly or
indirectly  commences  any  interference  or  opposition  proceeding,  challenges  the  validity  or  enforceability  of,  or  opposes  any
extension  of  or  the  grant  of  a  supplementary  protection  certificate  with  respect  to,  any  Arbutus  Patents  (“Patent  Challenge”),
provided that, Arbutus will not have the right to terminate this Agreement under this Section 12.2(c) if (i) Qilu causes such Patent
Challenge  to  be  terminated  or  dismissed  (or  in  the  case  of  ex-parte  proceedings,  multi-party  proceedings,  or  other  Patent
Challenges in which the challenging party does not have the power to unilaterally cause the Patent Challenge to be withdrawn,
withdraws or causes its Affiliate or Sublicensee to withdraw as a party from such Patent Challenge and to cease actively assisting
any other party to such Patent Challenge), or (ii) Qilu, with respect to a Sublicensee, terminates such Sublicensee’s sublicense to
the  Patent  Rights  being  challenged  by  the  Sublicensee,  in  each  case  (i)  and  (ii),  within  [***]  days  of  Arbutus’  notice  to  Qilu
under this Section 12.2(c).

(d)

Termination for Insolvency. Each Party shall have the right to terminate this Agreement upon delivery of
written  notice  to  the  other  Party  in  the  event  that  (i)  such  other  Party  files  in  any  court  or  agency  pursuant  to  any  statute  or
regulation of any jurisdiction a petition in bankruptcy or insolvency or for reorganization or similar arrangement for the benefit of
creditors or for the appointment of a receiver or trustee of such other Party or its assets, (ii) such other Party is served with an
involuntary petition against it in any insolvency proceeding and such involuntary petition has not been stayed or dismissed within
[***] days of its filing, or (iii) such other Party makes an assignment of substantially all of its assets for the benefit of its creditors
(each of (i) through (iii), an “Insolvency Event”).

12.3 Effect of Termination.

(a)

In the event of any termination of this Agreement for any reason:

(i)

Except  as  expressly  set  forth  in  this  Agreement,  all  rights  and  obligations  of  the  Parties  shall
immediately  terminate,  including  the  License;  provided,  that  the  license  granted  by  Qilu  to  Arbutus  and  its  Affiliates
under Section 11.1(c) shall survive;

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

61

The Parties shall have no further obligation to perform any activities under this Agreement other
than as provided for or referenced in this ARTICLE 12, and Qilu and its Affiliates and Sublicensees shall cease any and
all Development, Manufacture and Commercialization activities relating to the Licensed Products;

(ii)

(iii)

with  respect  to  any  ongoing  Clinical  Trials  of  the  Licensed  Products  conducted  by  Qilu  or  its
Affiliates  or  Sublicensees,  (x)  Qilu  shall  wind  down  at  its  sole  cost  the  conduct  of  such  Clinical  Trials  as  soon  as
reasonably  practicable,  subject  to  requirements  of  Applicable  Laws;  provided,  that  Qilu  shall  not  take  any  action  in
connection  with  the  winding  down  of  any  such  Clinical  Trials  that  could  reasonably  cause  material  harm  to  any
participants in such Clinical Trials, or, upon the request of Arbutus, transfer to Arbutus or its designee the conduct of such
Clinical Trials as soon as reasonably practicable pursuant to the requirements of Applicable Laws, and (y) until such time
as the conduct of such Clinical Trials has been successfully terminated or transferred to Arbutus or its designee, Qilu shall
continue  such  Clinical  Trials  at  its  sole  cost;  provided,  that  the  foregoing  costs  in  this  subsection  (iii)  shall  be  the
responsibility of Arbutus if Qilu terminates this Agreement in accordance with Section 12.2(b); and

(iv)

each Party shall comply with its obligations pursuant to Section 12.5 and Section 12.6.

a termination of this Agreement by Qilu pursuant to Section 12.2(b):

(b) Without limiting the generality of Section 12.3(a), in the event of any termination of this Agreement except

(i)

upon the request of Arbutus, (x) Qilu shall assign and transfer to Arbutus or its designee any and all
Regulatory  Documents,  including  regulatory  filings  made  with  and  all  Regulatory  Approvals  obtained  from  the
Regulatory  Authorities  in  the  Territory  (to  the  extent  permissible),  relating  to  the  Licensed  Products  in  the  Field  in  the
Territory  pursuant  to  the  requirements  of  Applicable  Laws,  and  (y)  Qilu  shall  cooperate  with  Arbutus  to  facilitate  the
orderly transition and uninterrupted Development, Manufacturing and Commercialization of the Licensed Products in the
Field  in  the  Territory,  including  by  assigning  or  otherwise  transferring  (to  the  extent  permissible)  to  Arbutus  or  its
designee  all  right,  title  and  interest  in  all  Third  Party  contracts  (or  portions  thereof)  related  to  such  Development,
Manufacturing and Commercialization, as reasonably requested by Arbutus; and

(ii)

upon the request of Arbutus, Qilu shall grant and hereby grants (effective from and after the time
when  the  conditions  precedent  for  such  present  grant  under  this  Section  12.3(b)(ii)  have  been  satisfied)  to  Arbutus  an
exclusive, royalty-free, fully paid-up, sublicensable (through multiple tiers) license under Qilu’s right in the Qilu New IP
and the Joint New IP Controlled by Qilu or its Affiliates as of the date of notice of termination, for the sole purpose of
Exploiting the Licensed Compound and Licensed Products in the Field in the Territory.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

62

(c) Without limiting the  generality  of Section 12.3(a),  in  the  event  of  any  termination  of  this  Agreement  by
Qilu pursuant to Section 12.2(b), upon the request of Arbutus, Qilu shall promptly negotiate in good faith to discuss and agree to
grant to Arbutus an exclusive, sublicensable (through multiple tiers) license under Qilu’s right in the Qilu New IP and the Joint
New IP Controlled by Qilu or its Affiliates as of the date of notice of termination, for the purpose of Exploiting the Licensed
Compound and Licensed Products in the Field in the Territory, on commercially reasonable terms.

12.4 Rights in Insolvency. All rights and licenses now or hereafter granted by Arbutus to Qilu under or pursuant to this
Agreement are, for all purposes of Section 365(n) of the Bankruptcy Code, licenses of rights to “intellectual property” as defined
in the Bankruptcy Code. Upon an Insolvency Event, Arbutus agrees that Qilu, as licensee of such rights under this Agreement,
will retain and may fully exercise all of its rights and elections under the Bankruptcy Code. Arbutus will, during the Term, create
and maintain current copies or, if not amenable to copying, detailed descriptions or other appropriate embodiments, to the extent
feasible, of all intellectual property licensed under this Agreement. Each Party acknowledges and agrees that “embodiments” of
intellectual  property  within  the  meaning  of  Section  365(n)  include  laboratory  notebooks,  cell  lines,  product  samples  and
inventory,  research  studies  and  data,  all  Regulatory  Approvals  (and  all  applications  for  Regulatory  Approval)  and  rights  of
reference therein, the Arbutus IP and all information related to the Arbutus IP.

12.5 Accrued Rights. Expiration  or  termination  of  this  Agreement  for  any  reason  shall  be  without  prejudice  to  any
right which shall have accrued to the benefit of either Party prior to such termination, including damages arising from any breach
under this Agreement.

12.6

Survival. The  provisions  of  Section 4.1(e),  the  last  two  sentences  of  Section 4.5(a),  Section  11.1,  Section  11.6,
Section  12.3,  Section  12.4,  Section  12.5,  Section  12.6,  ARTICLE  1  (to  the  extent  relevant  to  any  surviving  provisions),
ARTICLE  7  (to  the  extent  relating  to  payments  that  have  accrued  or  been  paid  prior  to  the  effective  date  of  expiration  or
termination), ARTICLE 8, ARTICLE 10 and ARTICLE 13, together with any other provisions of this Agreement that by their
terms are expressly stated to survive, shall survive the expiration or termination of this Agreement.

12.7 Certain Additional Remedies of Qilu in Lieu of Termination. [***].

ARTICLE 13
MISCELLANEOUS

13.1

Force Majeure. Neither  Party  shall  be  held  liable  to  the  other  Party  nor  be  deemed  to  have  defaulted  under  or
breached  this  Agreement  for  failure  or  delay  in  performing  any  obligation  under  this  Agreement  (except  for  any  payment
obligation) to the extent such failure or delay is caused by or results from causes beyond the reasonable control of the affected
Party,  including  embargoes,  war,  acts  of  war  (whether  war  be  declared  or  not),  acts  of  terrorism,  insurrections,  riots,  civil
commotions,  strikes,  lockouts  or  other  labor  disturbances  (except  for  a  strike,  lockout  or  labor  disturbance  with  respect  to  the
non-performing  Party’s  respective  employees  or  agents),  fire,  floods,  pandemic,  earthquakes  or  other  acts  of  God,  or  any
applicable action or inaction by any Governmental Authority, or omissions or delays in acting by the other Party. The  affected
Party shall

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

63

notify  the  other  Party  in  writing  of  such  force  majeure  circumstances  as  soon  as  reasonably  practicable  (in  any  event,  within
thirty (30) days), and shall promptly undertake and continue diligently all reasonable efforts necessary to cure such force majeure
circumstances or to perform its obligations despite the ongoing circumstances.

13.2 Assignment.  This  Agreement  may  not  be  assigned  or  otherwise  transferred  by  a  Party,  nor  may  any  right  or
obligation  hereunder  be  assigned  or  transferred  by  a  Party  (except  as  expressly  permitted  under  this  Agreement),  without  the
prior written consent of the other Party, such consent not to be unreasonably withheld, conditioned or delayed. Notwithstanding
the foregoing, either Party may, without the consent of the other Party, assign this Agreement (a) in whole or in part to any of its
Affiliates or (b) in whole, but not in part, to a purchaser of all or substantially all of its assets (whether by merger, stock purchase,
consolidation, asset purchase, or otherwise) or to any successor resulting from a Change of Control of such Party, provided that,
in the event Arbutus is the assigning Party, such purchaser or successor shall have purchased or otherwise obtained Control of all
Arbutus IP in existence as of the date of such assignment. The assigning Party shall provide written notice to the other Party of
any  assignment  permitted  under  this  Section  13.2  within  thirty  (30)  days  after  effecting  such  assignment.  Any  attempted
assignment not in accordance with this Section 13.2 shall be null and void and of no legal effect. The terms and conditions of this
Agreement  shall  be  binding  upon,  and  shall  inure  to  the  benefit  of,  the  Parties  and  their  respected  successors  and  permitted
assigns.

13.3

Severability.  If  one  (1)  or  more  of  the  provisions  contained  in  this  Agreement  is  held  invalid,  illegal  or
unenforceable in any respect, the validity, legality and enforceability of the remaining provisions contained herein shall not in any
way be affected or impaired thereby, unless the absence of the invalidated provision(s) adversely affects the substantive rights of
the  Parties.  The  Parties  shall  in  such  an  instance  use  their  commercially  reasonable  efforts  to  replace  the  invalid,  illegal  or
unenforceable provision(s) with valid, legal and enforceable provision(s) that, insofar as practicable, implement the purposes of
this Agreement.

13.4 Notices.  All  notices  that  are  required  or  permitted  hereunder  shall  be  in  writing  and  sufficient  if  delivered
personally,  sent  by  internationally-recognized  overnight  courier  or  sent  by  registered  or  certified  mail,  postage  prepaid,  return
receipt requested, addressed as follows:

If to Arbutus:

Arbutus Biopharma Corporation
701 Veterans Circle
Warminster, PA 18974 USA
Attention: Arbutus General Counsel

If to Qilu:

Qilu Pharmaceutical Co., Ltd.
No. 8888, Lvyou Road
Jinan, Shandong, 250014, China
Attention: Qilu Legal Director

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

64

or to such other address as the Party to whom notice is to be given may have furnished to the other Party in writing in accordance
herewith. Any such notice shall be deemed to have been given: (a) when delivered if personally delivered on a Business Day (or
if delivered on a non-Business Day, then on the next Business Day); (b) on the second (2 ) Business Day after dispatch if sent by
internationally-recognized overnight courier; or (c) on the fifth Business Day following the date of mailing if sent by mail.

nd

13.5 Governing Law. This Agreement, and all claims or causes of action (whether in contract, tort or statute) that may
be based upon, arise out of or relate to this Agreement, or the negotiation, execution or performance of this Agreement or the
breach  thereof  (including  any  claim  or  cause  of  action  based  upon,  arising  out  of  or  related  to  any  representation  or  warranty
made  in  or  in  connection  with  this  Agreement  or  as  an  inducement  to  enter  into  this  Agreement),  shall  be  governed  by,  and
enforced in accordance with, the internal laws of the State of Delaware, without reference to its conflicts of law principles.

13.6

Internal Resolution. Other than disputes subject to final decision-making authority by a Party pursuant to Section
3.5,  in  the  event  of  any  dispute  between  the  Parties  relating  to  or  arising  out  of  this  Agreement,  the  formation,  construction,
breach or termination hereof, or the rights, duties or liabilities of either Party hereunder, the Parties shall first attempt in good
faith to resolve such dispute by negotiation and consultation between themselves, utilizing the Alliance Managers. In the event
that such dispute is not resolved on an informal basis within [***] days, either Party may, by written notice to the other Party,
refer  the  dispute  to  the  Executive  Officers  for  attempted  resolution  by  good  faith  negotiation  within  [***]  after  such  notice  is
received.

13.7 Binding Arbitration. If the Executive Officers are not able to resolve a disputed matter referred to them within
[***] and any Party wishes to pursue the matter, each such dispute, controversy or claim that is not an Excluded Claim shall be
finally  resolved  by  binding  arbitration  administered  by  the  International  Chamber  of  Commerce  (“ICC”)  pursuant  to  its  then
prevailing arbitration rules, and judgment on the arbitration award may be entered in any court having jurisdiction thereof. The
Parties agree that:

(a)

The arbitration shall be conducted by a single arbitrator appointed by the ICC, who shall (i) be a lawyer of
not less than fifteen (15) years’ standing who is experienced in the pharmaceutical business in the relevant country, (ii) not be or
have been an employee, consultant, officer, director or stockholder of either Party or any Affiliate of either Party, and (iii) not
have a conflict of interest under any applicable rules of ethics. The place of arbitration shall be New York, New York, and all
proceedings and communications shall be in English, unless otherwise agreed by both Parties involved in such dispute.

(b)

Any Party may apply to the arbitrator for interim injunctive relief until the arbitration award is rendered or
the controversy is otherwise resolved. Any Party also may, without waiving any remedy under this Agreement, seek from any
court having jurisdiction any injunctive or provisional relief necessary to protect the rights or property of that Party pending the
arbitration award.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

65

(c)

The arbitrator shall have no authority to award punitive or any other type of damages not measured by a
Party’s compensatory damage. Each  Party  shall  bear  its  own  costs  and  expenses  and  attorneys’  fees  and  an  equal  share  of  the
arbitrator’s fees and any administrative fees of arbitration regardless of the outcome of such arbitration.

(d)

Except to the extent necessary to confirm an award or as may be required by law, neither a Party nor the
arbitrator may disclose the existence, content, or results of an arbitration without the prior written consent of both Parties. In no
event shall an arbitration be initiated after the date when commencement of a legal or equitable proceeding, based on the dispute,
controversy or claim, would have been barred by the applicable statute of limitations.

(e)

Each  Party  hereby  irrevocably  waives  any  claim  to  sovereign  immunity  in  regard  to  any  proceedings  to
recognise or enforce an arbitral award rendered by an arbitral tribunal constituted pursuant to this Agreement, including, without
limitation, immunity from service of process, immunity from jurisdiction of any court, and immunity of any of its property from
execution, regardless of the commercial or non-commercial nature of the property in question.

As used in this Section 13.7, the term “Excluded Claim” shall mean a dispute, controversy or claim that
concerns the scope, validity, enforceability, inventorship or infringement of a patent, patent application, trademark or copyright.
Any Excluded Claim shall be submitted to a court of competent jurisdiction.

(f)

13.8 Headings. The  captions  to  the  several  Articles,  Sections,  subsections  and  Exhibits  hereof  are  not  a  part  of  this
Agreement, but are merely for convenience to assist in locating and reading the several Articles, Sections and Exhibits of this
Agreement.

13.9

Independent Contractors. It is expressly agreed that Arbutus and Qilu shall be independent contractors and that
the relationship between the two (2) Parties shall not constitute a partnership, joint venture or agency. Neither Arbutus nor Qilu
shall have the authority to make any statements, representations or commitments of any kind, or to take any action that is binding
on the other Party without the prior written consent of the other Party.

13.10 Waiver. Any waiver of any provision of this Agreement shall be effective only if in writing and signed by Arbutus
and Qilu. No express or implied waiver by a Party of any default under this Agreement will be a waiver of a future or subsequent
default. The failure or delay of any Party in exercising any rights under this Agreement will not constitute a waiver of any such
right, and any single or partial exercise of any particular right by any Party will not exhaust the same or constitute a waiver of any
other right provided in this Agreement.

13.11 Waiver of Rule of Construction. Each Party has had the opportunity to consult with counsel in connection with
the  review,  drafting  and  negotiation  of  this  Agreement.  Accordingly,  the  rule  of  construction  that  any  ambiguity  in  this
Agreement shall be construed against the drafting Party shall not apply.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

66

13.12 Cumulative  Remedies;  Recovery  of  Damages.  Except  as  expressly  set  forth  in  this  Agreement,  no  remedy
referred  to  in  this  Agreement  is  intended  to  be  exclusive,  but  each  shall  be  cumulative  and  in  addition  to  any  other  remedy
referred to in this Agreement or otherwise available under Applicable Laws. If Qilu seeks direct damages from Arbutus arising
from any breach of this Agreement, then Qilu shall be entitled to seek damages including, without limitation, any and all amounts
paid  by  Qilu  to  Arbutus  under  this  Agreement,  including  without  limitation  any  payment  described  as  nonrefundable  or  non-
creditable; provided that, nothing in this Section 13.12 shall be construed to change any legal obligation under Applicable Law
for Qilu to prove its damages for such breach.

13.13 Business Day Requirements. In the event that any notice or other action or omission is required to be taken by a
Party under this Agreement on a day that is not a Business Day then such notice or other action or omission shall be deemed to be
required to be taken on the next occurring Business Day.

13.14 Further Actions. Each Party agrees to execute, acknowledge and deliver such further instruments, and to do all
such other acts, as necessary or appropriate in order to carry out the purposes and intent of this Agreement. Without limiting the
generality of the foregoing, Arbutus shall reasonably cooperate with Qilu in the preparation, execution and filing of “short-form”
agreements  in  a  form  reasonably  acceptable  to  Arbutus  with  relevant  Governmental  Authorities  (including,  without  limitation,
the Ministry of Commerce of the People’s Republic of China, the Ministry of Science and Technology of the People’s Republic
of  China,  and  China  National  Intellectual  Property  Administration,  and  any  local  office,  commission  or  branch  of  any  of  the
foregoing) in accordance with Applicable Law, including terms and conditions of this Agreement as required by Applicable Law
for  purposes  of  registration  or  recordation  of  this  Agreement  or  the  licenses  granted  hereunder  with  the  Governmental
Authorities.

13.15 Construction. Except  where  the  context  expressly  requires  otherwise,  (a)  the  use  of  any  gender  herein  shall  be
deemed to encompass references to either or both genders, and the use of the singular shall be deemed to include the plural (and
vice  versa),  (b)  the  words  “include”,  “includes”  and  “including”  shall  be  deemed  to  be  followed  by  the  phrase  “without
limitation”, (c) the word “will” shall be construed to have the same meaning and effect as the word “shall”, (d) any definition of
or reference to any agreement, instrument or other document herein shall be construed as referring to such agreement, instrument
or  other  document  as  from  time  to  time  amended,  supplemented  or  otherwise  modified  (subject  to  any  restrictions  on  such
amendments, supplements or modifications set forth herein), (e) any reference herein to any person shall be construed to include
the  person’s  successors  and  assigns,  (f)  the  words  “herein”,  “hereof”  and  “hereunder”,  and  words  of  similar  import,  shall  be
construed to refer to this Agreement in its entirety and not to any particular provision hereof, (g) all references herein to Sections,
Schedules, or Exhibits shall be construed to refer to Sections, Schedules or Exhibits of this Agreement unless otherwise specified,
and  references  to  this  Agreement  include  all  Schedules  and  Exhibits  hereto,  (h)  the  word  “notice”  means  notice  in  writing
(whether or not specifically stated) and shall include notices, consents, approvals and other written communications contemplated
under  this  Agreement,  (i)  provisions  that  require  that  a  Party,  the  Parties  or  any  committee  hereunder  “agree”,  “consent”  or
“approve”  or  the  like  shall  require  that  such  agreement,  consent  or  approval  be  specific  and  in  writing,  whether  by  written
agreement, letter, approved minutes or otherwise (but excluding e-mail and instant messaging),

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

67

(j) references to any specific law, rule or regulation, or Section, section or other division thereof, shall be deemed to include the
then-current amendments thereto or any replacement or successor law, rule or regulation thereof, and (k) the term “or” shall be
interpreted in the inclusive sense commonly associated with the term “and/or.” This Agreement is made in English. In the event
that  this  Agreement  includes  terms  in  any  other  language,  those  terms  shall  be  for  reference  purposes  only  and  the  English
language version of this Agreement shall control for any interpretations of the provisions of this Agreement.

13.16 Entire  Agreement;  Amendments.  This  Agreement,  together  with  the  Exhibits  hereto,  contains  the  entire
understanding  of  the  Parties  with  respect  to  the  subject  matter  hereof.  Any  other  express  or  implied  agreements  and
understandings, negotiations, writings and commitments, either oral or written, in respect to such subject matter are superseded
by the terms of this Agreement. The Exhibits to this Agreement are incorporated herein by reference and shall be deemed a part
of this Agreement. This Agreement may be amended, or any term hereof modified, only by a written instrument duly executed by
authorized  representative(s)  of  both  Parties.  The  Parties  agree  that,  effective  as  of  the  Execution  Date,  that  the  Existing
Confidentiality  Agreement  shall  be  superseded  by  this  Agreement,  and  that  disclosures  made  prior  to  the  Execution  Date
pursuant  to  the  Existing  Confidentiality  Agreement  shall  be  subject  to  the  confidentiality  and  non-use  provisions  of  this
Agreement. The foregoing shall not be interpreted as a waiver of any remedies available to either Party or its Affiliates as a result
of any breach, prior to the Execution Date, by the other Party or its Affiliates of such other Party’s or its Affiliate’s obligations
pursuant to the Existing Confidentiality Agreement.

13.17 Counterparts.  This  Agreement  may  be  executed  in  two  (2)  counterparts,  each  of  which  shall  be  deemed  an
original,  but  both  of  which  together  shall  constitute  one  and  the  same  instrument.  Each  Party  shall  be  entitled  to  rely  on  the
delivery of executed digital (e.g., PDF) copies of counterpart execution pages of this Agreement and such digital copies shall be
legally effective to create a valid and binding agreement between the Parties.

{Signature Page Follows}

68

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

In  Witness  Whereof,  the  Parties  intending  to  be  bound  have  caused  this  Technology  Transfer  and  Exclusive  License

Agreement to be executed by their duly authorized representatives as of the Execution Date.

ARBUTUS BIOPHARMA CORPORATION

/s/ William H. Collier

By:
Name: William H. Collier
Title:

President & Chief Executive Officer

QILU PHARMACEUTICAL CO., LTD.

/s/ Haizhong Bao

By:
Name: Haizhong Bao
Title:

President and Legal Representative

[Signature Page to Technology Transfer and Exclusive License Agreement]

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL

List of Exhibits

Exhibit 1.19: Arbutus Materials

Exhibit 1.20: Arbutus Patents

Exhibit 1.89: Licensed Compound

Exhibit 2.5: Initial Technology Transfer Documents List

Exhibit 4.1: Outline of Development Plan

Exhibit 5.2: Clinical Supply Terms

Exhibit 6.3(b): Licensed Product-Specific Trademarks

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY “[***]”, HAS BEEN OMITTED BECAUSE IT IS
BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL277869161v.1 73343/10030

Arbutus Biopharma Corporation

List of Subsidiaries

Arbutus Biopharma Inc.

Delaware, United States of America

Name

Jurisdiction

Exhibit 21.1 

 
 
 
Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

1. Registration  Statement  (Form  S-3  No.  333-260782)  pertaining  to  the  offering,  issuance  and  sale  of  up  to  (a)  $250,000,000  of  common  shares,
preferred shares, warrants, debt securities and units of Arbutus Biopharma Corporation and (b) 38,847,462 common shares offered by the selling
shareholder named therein,

2. Registration  Statement  (Form  S-3  No.  333-248467)  pertaining  to  the  offering,  issuance  and  sale  of  up  to  $200,000,000  of  common  shares,

preferred shares, warrants, debt securities and units of Arbutus Biopharma Corporation,

3. Registration  Statement  (Form  S-3  No.  333-235674)  pertaining  to  the  offering,  issuance  and  sale  of  up  to  $150,000,000  of  common  shares,

preferred shares, warrants, debt securities and units of Arbutus Biopharma Corporation,

4. Registration Statement (Form S-8 No. 333-258494) pertaining to the Arbutus Biopharma Corporation 2016 Omnibus Share and Incentive Plan,

5. Registration Statement (Form S-8 No. 333-239407) pertaining to the Arbutus Biopharma Corporation 2016 Omnibus Share and Incentive Plan and

Arbutus Biopharma Corporation 2020 Employee Stock Purchase Plan,

6. Registration Statement (Form S-8 No. 333-233192) pertaining to the Inducement Stock Option Award of Arbutus Biopharma Corporation,

7. Registration Statement (Form S-8 No. 333-228919) pertaining to the Arbutus Biopharma Corporation 2011 Omnibus Share Compensation Plan,

8. Registration Statement (Form S-8 No. 333-212115) pertaining to the Arbutus Biopharma Corporation 2016 Omnibus Share and Incentive Plan,

9. Registration Statement (Form S-8 No. 333‑202762) pertaining to the OnCore Biopharma, Inc. 2014 Equity Incentive Plan, and

10. Registration Statement (Form S-8 No. 333-186185) pertaining to the Tekmira 2011 Omnibus Share Compensation Plan, the Tekmira Share Option

Plan and the Protiva 2000 Incentive Stock Option Plan,

of our report dated March 3, 2022, with respect to the consolidated financial statements of Arbutus Biopharma Corporation included in this Annual Report
(Form 10-K) of Arbutus Biopharma Corporation for the year ended December 31, 2021.

/s/ Ernst & Young LLP

Philadelphia, Pennsylvania
March 3, 2022

                
Exhibit 31.1

CERTIFICATION PURSUANT TO RULE 13a-14 AND 15d-14 OF THE SECURITIES

EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, William Collier, President and Chief Executive Officer of Arbutus Biopharma Corporation, certify that:

1.

I have reviewed this Form 10-K;

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 the 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 3, 2022

/s/ William Collier

Name: William Collier

Title: President and Chief Executive Officer
(Principal Executive Officer)

Exhibit 31.2

CERTIFICATION PURSUANT TO RULE 13a-14 AND 15d-14 OF THE SECURITIES

EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, David Hastings, Chief Financial Officer of Arbutus Biopharma Corporation, certify that:

1.

I have reviewed this Form 10-K;

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 3, 2022

/s/ David Hastings

Name: David Hastings

Title: Chief Financial Officer

(Principal Financial Officer)

Exhibit 32.1

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 Arbutus Biopharma Corporation (the “Company”) on Form 10-K for the year ended December 31, 2021, as filed
with the Securities and Exchange Commission on the date hereof (the “Report”), I William Collier, President and Chief Executive Officer of the Company,
certify 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, as amended; and

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

Company.

Date: March 3, 2022

/s/ William Collier

Name: William Collier

Title: President and Chief Executive Officer
(Principal Executive Officer)

Exhibit 32.2

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 Arbutus Biopharma Corporation (the “Company”) on Form 10-K for the year ended December 31, 2021, as filed
with the Securities and Exchange Commission on the date hereof (the “Report”), I David Hastings, Chief Financial Officer of the Company, certify 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, as amended; and

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

Company.

Date: March 3, 2022

/s/ David Hastings

Name: David Hastings

Title: Chief Financial Officer

(Principal Financial Officer)