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Arbutus Biopharma Corporation

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FY2019 Annual Report · Arbutus Biopharma Corporation
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

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

For the Fiscal Year Ended December 31, 2019 

or 

o   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

Trading Symbol(s)

Name of Each Exchange on Which Registered

Common shares, without par value

ABUS

The Nasdaq Stock Market LLC

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

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

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 o

Non-accelerated filer o

Emerging growth company o

Accelerated filer x

Smaller reporting company x

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 is a shell company (as defined in Rule 12b-2 of the Act). Yes o No x

As of June 30, 2019, 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 $118,248,358 (based on the closing price of $2.08 per share as reported on the
NASDAQ Global Select Market as of that date).

As of March 2, 2020,  the  registrant  had  68,941,406  common  shares,  without  par  value,  outstanding.  In  addition,  the  registrant  had  outstanding  1,164,000
convertible  preferred  shares,  which  will  be  mandatorily  converted  into  approximately  23  million  common  shares  on  October  18,  2021.    Assuming  the
convertible  preferred  shares  were  converted  as  of  March  2,  2020,  the  registrant  would  have  had  approximately  92  million  common  shares  outstanding  at
March 2, 2020.

DOCUMENTS INCORPORATED BY REFERENCE

Portions  of  the  registrant’s  definitive  proxy  statement  for  its  2020  Annual  Meeting  of  Stockholders,  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  end  of  December  31,  2019,  are
incorporated by reference into Part III of this Form 10-K.

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ARBUTUS BIOPHARMA CORPORATION

TABLE OF CONTENTS

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

Selected Consolidated Financial Data

Management’s Discussion and Analysis of Financial Condition and Results of Operations

PART I

Item 1.

Item 1A.

Item 1B.

Item 2.

Item 3.

Item 4.

PART II

Item 5.

Item 6.

Item 7.

Item 7A.

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

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 8.

Item 9.

Item 9A.

Item 9B.

PART III

Item 10.

Item 11.

Item 12.

Item 13.

Item 14.

PART IV

Item 15.

Exhibits and Financial Statement Schedules

Page

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48

48

48

49

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51

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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:

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our strategy, future operations, pre-clinical research, pre-clinical studies, clinical trials, prospects and the plans of management;
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”);
our beliefs and development path and strategy to achieve a curative combination regimen for HBV;
obtaining necessary regulatory approvals;
obtaining adequate financing through a combination of financing activities and operations;
using the results from our HBV studies to adaptively design additional clinical trials to test the efficacy of the combination therapy and the duration
of the result in patients;
the expected timing of and amount for payments related to the Enantigen Therapeutics, Inc.’s transaction and its programs;
the potential of our drug candidates to improve upon the standard of care and contribute to a curative combination treatment regimen;
the potential benefits of the reversion of the Ontario Municipal Employees Retirement System (“OMERS”) royalty monetization transaction for our
ONPATTRO™ (Patisiran) (“ONPATTRO”) royalty interest;
developing a suite of products that intervene at different points in the viral life cycle, with the potential to reactivate the host immune system;
using pre-clinical results to adaptively design clinical trials for additional cohorts of patients, testing the combination and the duration of therapy;
selecting combination therapy regimens and treatment durations to conduct Phase 3 clinical trials intended to ultimately support regulatory filings for
marketing approval;
expanding our HBV drug candidate pipeline through internal development, acquisitions and in-licenses;
our expectation for AB-729 for preliminary results from our single-dose Phase 1 trial to be available late in the first quarter of 2020;
our expectation for AB-729 for preliminary results from multiple-dose Phase 1 trial to be available late in the second half of 2020;
our  expectation  that  AB-729  could  be  combined  with  our  lead  capsid  inhibitor  candidate,  AB-836,  and  approved  NAs,  in  our  first  combination
therapy for HBV patients;
the potential for an oral HBsAg-reducing agent and potential all-oral combination therapy;
our objective to complete IND/CTA-enabling studies for AB-836 by the end of 2020;
the potential for AB-836 to be low-dose with a wide therapeutic window and to address known capsid resistant variants T33N and 1105T;
the potential for AB-836 to have increased potency and an enhanced resistance profile, compared to our previous capsid inhibitor candidate, AB-
506;
the potential for AB-836 to be once-daily dosing;
our expectation to pursue development of a next generation oral HBV RNA-destabilizer;
payments from the Gritstone Oncology, Inc. licensing agreement;
the expected return from strategic alliances, licensing agreements, and research collaborations;
statements with respect to revenue and expense fluctuation and guidance;
having sufficient cash resources to fund our operations into mid-2021; and
obtaining funding to maintain and advance our business from a variety of sources including public or private equity or debt financing, collaborative
arrangements with pharmaceutical companies, other non-dilutive commercial arrangements and government grants and contracts;

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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.

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.

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1. Business Overview

PART I

Arbutus  Biopharma  Corporation  (“Arbutus”,  the  “Company”,  “we”,  “us”,  and  “our”)  is  a  publicly  traded  (Nasdaq  Global  Select  Market:  ABUS)
biopharmaceutical  company  dedicated  to  developing  a  cure  for  patients  suffering  from  chronic  hepatitis  B  infection,  a  disease  of  the  liver  caused  by  the
hepatitis B virus (“HBV”). HBV represents a significant, global unmet medical need. The World Health Organization estimates that over 250 million people
worldwide suffer from HBV infection, while other estimates indicate that approximately 2 million people in the United States suffer from HBV infection.
Chronic  HBV  (“CHB”)  infection  has  high  rates  of  morbidity  and  mortality  with  a  cure  rate  for  HBV  patients  taking  standard  of  care  (“SOC”)  treatment
regimens of less than 5%. Our objective is to develop safe and effective therapies that can be combined for a finite treatment period and lead to higher cure
rates. We define a cure as a functional cure where HBV replication and hepatitis B surface antigen (“HBsAg”) expression are reduced to undetectable levels
six months after end of therapy.

To pursue our strategy of developing a treatment for chronic HBV, we are developing a diverse product pipeline consisting of multiple drug candidates with
complementary mechanisms of action, which have the potential to improve upon the SOC and contribute to a curative combination regimen.

Additionally, we have a royalty entitlement on 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 from the sale of this royalty
interest. The royalty interest will revert back to us after the buyer receives $30 million in royalty payments from Alnylam. 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
Therapeutics, Inc. (“Acuitas”). The royalty from Acuitas has been retained by us and was not part of the royalty sale. Refer to Item 1 Business Overview -
Strategic Alliances and Licensing Agreements for additional details.

Strategy

Our objective is to develop a curative combination regimen for patients with chronic HBV infection. We believe this can best be achieved by:

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developing  a  pipeline  of  proprietary  therapeutic  agents  that  target  multiple  elements  of  the  HBV  viral  lifecycle,  the  most  important  of  which  we
believe are HBV replication and HBsAg expression;
developing compounds that target the host immune system; and
identifying an effective combination of complementary proprietary therapeutic agents administered for a finite treatment duration.

Our primary focus is to:

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progress our clinical and pre-clinical product candidates through Phase 1 and Phase 2 clinical trials;
identify a safe and effective combination regimen to support a Phase 3 clinical registration program;
obtain regulatory approval for such a combination regimen; and
commercialize such combination regimen.

We are currently conducting a Phase 1a/1b clinical trial and pre-clinical and investigational new drug (“IND”)-enabling studies to evaluate proprietary HBV
therapeutic agents alone, together with SOC therapies and in combination with each other. We expect to use the results from this clinical trial and the other
studies to adaptively design future clinical trials to test the safety, efficacy, and duration of potential combination therapies.

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Our HBV product pipeline consists of the following programs:

We believe that AB-729, our subcutaneously administered RNA interference (“RNAi”) product candidate, may be combinable with our lead capsid inhibitor
product  candidate,  AB-836,  and  existing  approved  therapies,  in  our  first  combination  therapy  for  HBV  patients.  We  believe  AB-836  has  the  potential  for
improved efficacy and an enhanced resistance profile relative to our previous generation capsid inhibitor product candidate, AB-506. In parallel, we are in
lead  optimization  with  several  compounds  for  our  PD-L1  program  and  next-generation  HBV  RNA  destabilizer  program.  Our  next-generation  HBV  RNA
destabilizer product candidates have distinct chemical scaffolds from AB-452, our previous generation HBV RNA destabilizer.

We continue to explore expansion of our HBV pipeline through internal discovery and development and potential strategic alliances.

HBV Background

Agents for Combination Therapy

Current treatments for HBV include pegylated interferon-α (“Peg-IFNα”) and nucleos(t)ide analogues (“NAs”). These treatments reduce viral load, but have
low rates of cure (<5%). 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  virus  replication  and
inflammation and eliminate HBV DNA in the blood. However, virus replication resumes and liver inflammation and fibrosis may still progress once Peg-
IFNα and NA therapies are stopped.

Given the biology of HBV, we believe combination therapies are the key to more effective HBV treatment and a potential cure. Additionally, we believe the
development  of  an  effective  combination  therapy  can  be  accelerated  when  multiple  components  are  controlled  by  a  single  company.  Therefore,  our  R&D
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, have the potential to improve upon the standard of care.

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1. Nucleos(t)ide analogues (NAs): NAs work by inhibiting HBV DNA polymerase activity and suppressing HBV replication. Oral NAs have become a
mainstay of HBV treatment, mainly due to their ability to drive viral load to undetectable levels in the serum of patients, easy single pill once-a-day
dosing and lack of significant side effects. However, NAs 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 available 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  reduce  virus  replication,  but  not  completely.  Capsid  inhibitors  inhibit
replication by 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.

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

HBV RNA destabilizers: 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. HBV RNA destabilizers have the potential to complement or replace subcutaneously
delivered RNAi agents with an oral therapy in combination with a capsid inhibitor and an approved NA.

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HBsAg Reduction

RNAi Agents

The development of RNAi drugs, which utilize the RNA interference pathway, allows for a novel approach to treating disease. There is one approved RNAi
product,  ONPATTRO,  another  product  candidate  that  has  filed  a  New  Drug  Application  (“NDA”),  and  there  are  a  number  of  RNAi  products  currently
advancing in human clinical trials. Our extensive experience in antiviral drug development has been applied to our RNAi program to develop therapeutics for
chronic HBV infection.

Our RNAi HBV product candidate is designed to reduce HBsAg expression in patients chronically infected with HBV. Reducing HBsAg is widely believed to
be a key prerequisite to enable a patient’s immune system to reawaken and respond against the virus.

GalNAc RNAi (AB-729)

Early in 2018, we nominated AB-729 for IND-enabling studies. AB-729 is a subcutaneously-delivered RNAi therapeutic targeted to hepatocytes using our
novel covalently conjugated GalNAc delivery technology. AB-729 inhibits viral replication and reduces all HBV antigens, including HBsAg in preclinical
models. Reducing HBsAg is thought to be a key prerequisite to enable reawakening of a patient’s immune system to respond to the virus. The duration of
HBsAg reduction with AB-729 supports once per month dosing.

We presented data from pre-clinical studies at the International Liver Congress of the European Association for the Study of the Liver (“EASL”) meeting in
April 2018 in a presentation titled, “Durable Inhibition of Hepatitis B Virus Replication and Antigenemia Using Subcutaneously Administered RNAi Agent
AB-729 in Preclinical Models”. This presentation showed robust HBsAg knockdown and more durable in vivo activity than earlier-generation RNAi agents
for the treatment of chronic HBV infection.

We successfully completed IND-enabling studies for AB-729 which we filed as part of a clinical trial authorization (“CTA”). In July 2019, we initiated a
single and multiple dose Phase 1a/1b clinical trial for AB-729, designed to investigate the safety, tolerability, pharmacokinetics, and pharmacodynamics of
AB-729 in healthy subjects and in CHB subjects. Preliminary safety data in single-dose cohorts of healthy subjects and safety and efficacy data in single-dose
cohorts of patients with CHB infection are expected later this month. Additional single-dose data and preliminary multi-dose data are expected in the second
half of 2020.

Our initial RNAi product candidate, ARB-1467, demonstrated the ability to reduce HBsAg in patients but utilized a lipid nanoparticle delivery vehicle which
required intravenous delivery and bi-weekly administration. We discontinued development of ARB-1467 in 2018 to focus on AB-729, our subcutaneously-
delivered product candidate that supports once per month dosing.

HBV RNA Destabilizers

HBV RNA destabilizers are small molecule orally active 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 mechanism of action anti-HBV agents. HBV RNA destabilizers have the potential to complement or replace subcutaneously delivered RNAi agents
with an oral therapy in combination with a capsid inhibitor and an approved NA.

In  October  2018,  we  announced  the  emergence  of  nonclinical  safety  findings  in  our  AB-452  HBV  RNA  destabilizer  program.  Given  the  nature  of  these
observations and the novel mechanism of action of this drug, additional studies were necessary to understand these findings and their implications before
deciding  whether  to  advance  AB-452  into  human  clinical  trials.  Following  careful  assessment  of  the  nonclinical  safety  findings,  we  noted  several
confounding observations which included observations with no histological correlation, a lack of dose response regarding some key findings and what we
thought  was  an  unexplained  vehicle  effect.  Because  of  these  confounding  observations,  we  repeated  the  90-day  preclinical  safety  study  in  two  species.
Additionally,  we  evaluated  AB-452  in  a  series  of  in  vitro  and  in  vivo  studies  to  further  characterize  the  compound,  its  mechanism  of  action,  safety  and
pharmacokinetic  profile.  Based  on  the  results  from  these  repeat  pre-clinical  safety  studies  and  additional  characterization  activities,  in  consultation  with
external regulatory and pre-clinical experts, we decided not to advance AB-452.

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We remain committed to the development of oral HBV RNA destabilizers that have shown compelling anti-viral effects in multiple HBV pre-clinical models.
Our effort is now focused on advancing a next-generation oral HBV specific RNA-destabilizer with chemical scaffolds distinct from AB-452 through lead
optimization.

HBV Suppression

Capsid Inhibitors (AB-836)

HBV core protein assembles into a capsid structure, which is required for viral replication. The current SOC therapy (NAs or Peg-IFN) significantly reduces
HBV DNA levels in the serum, but HBV replication continues in the liver, thereby enabling HBV infection to persist. More effective therapy for patients
requires 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.

Our  oral  capsid  inhibitor  discovery  effort  generated  promising  next-generation  compounds,  which  led  to  the  nomination  of  AB-836  in  January  2020  for
IND/CTA-enabling  studies.  AB-836  has  the  potential  for  increased  potency  and  an  enhanced  resistance  profile  compared  to  our  previous  capsid  inhibitor
product candidate, AB-506. AB-836 is a novel chemical series differentiated from AB-506 and other competitor compounds in the capsid inhibitor space.
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  agents  and  is  also
anticipated to be dosed once daily. We anticipate completing IND/CTA-enabling studies for AB-836 by the end of 2020.

Our previous capsid inhibitor product candidate, AB-506, was an orally administered, highly selective capsid inhibitor that had shown improved potency and
pharmacokinetics  (“PK”)  over  our  first  generation  capsid  inhibitor,  AB-423,  in  pre-clinical  studies.  In  February  2020,  we  announced  our  decision  to
discontinue clinical development of AB-506, which at the time of the decision was in a Phase 1a/1b clinical trial. We made this decision after observing two
cases of acute hepatitis in a 28-day healthy volunteer trial of AB-506. The liver enzyme levels in these two subjects subsequently normalized.

We  remain  committed  to  the  development  of  oral  capsid  inhibitors  that  have  shown  compelling  reductions  in  HBV  DNA  and  HBV  RNA  levels.  We  are
currently focused on advancing our promising next-generation oral capsid inhibitor product candidate, AB-836, through IND/CTA-enabling studies.

Immune Modulators

We have a number of research programs aimed at discovery and development of proprietary HBV candidates with different and complementary mechanisms
of action. We are in lead optimization with compounds potentially capable of reawakening patients’ HBV-specific immune response by inhibiting PD-L1.
These compounds complement our pipeline of agents and could potentially form an effective combination therapy for the treatment of HBV.

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Strategic Alliances and Licensing Agreements

ONPATTRO

In 2012, we entered into a license agreement with Alnylam that entitles Alnylam to develop and commercialize products with our LNP technology. Alnylam’s
ONPATTRO,  which  represents  the  first  approved  application  of  our  LNP  technology,  was  approved  by  the  United  States  Food  and  Drug  Administration
(“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 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.

Acuitas Therapeutics, Inc.

We have rights to a second 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 us and was not part of the royalty entitlement sale to OMERS.

Genevant Sciences

In April 2018, we entered into an agreement with Roivant Sciences Ltd. (“Roivant”), our largest shareholder, to launch Genevant, a company focused on the
discovery, development, and commercialization of a broad range of RNA-based therapeutics enabled by our LNP and ligand conjugate delivery technologies.
We have licensed exclusive rights to these delivery platforms to Genevant for RNA-based applications outside of HBV and any other pre-existing licensing
obligations of Arbutus. Genevant plans to develop products in-house and to pursue industry partnerships in order to build a diverse pipeline of therapeutics
across multiple modalities, including RNAi, mRNA, and gene editing.

Under the terms of the agreement, Roivant contributed $37.5 million in transaction-related seed capital to Genevant, consisting of an initial $22.5 million
investment and a subsequent $15 million investment at a pre-determined, stepped-up valuation. We retained all rights to our delivery platforms for HBV, and
we are entitled to a tiered low single-digit royalty from Genevant on future sales of products enabled by the delivery platforms licensed to Genevant. We also
retained the entirety of our royalty entitlement on the commercialization of Alnylam’s ONPATTRO. As of December 31, 2019, we held an equity interest in
Genevant of approximately 40%.

As of December 31, 2019, recovery of our remaining carrying value in Genevant was uncertain, and therefore we recorded a $7.6 million impairment expense
to reduce the carrying value of our investment in Genevant to zero.

License Agreement with Enantigen

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.  Through  this  transaction,  Arbutus  Inc.  acquired  a  HBV  surface  antigen  secretion  inhibitor  program  and  a  capsid  assembly
inhibitor program.

Under the stock purchase agreement, we agreed to pay up to a total of $21.0 million to Enantigen’s selling shareholders upon the achievement of specified
development  and  regulatory  milestones  for  (a)  the  first  two  products  that  contain  either  a  capsid  compound  or  an  HBV  surface  antigen  compound  that  is
covered by a patent acquired under this agreement, or (b) a capsid compound from an agreed upon list of compounds. The development milestones are tied to
programs which are no longer under development by us, and therefore the contingency related to these milestones has been reduced to zero. 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

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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 milestone payment obligations. Refer to note 3 - Fair Value Measurements in the Notes to the Consolidated Financial
Statements.

Marqibo®

Marqibo®,  originally  developed  by  us,  is  a  novel,  sphingomyelin/cholesterol  liposome-encapsulated  formulation  of  the  FDA-approved  anticancer  drug
Vincristine. Marqibo’s approved indication is for the treatment of adult patients with Philadelphia chromosome-negative acute lymphoblastic leukemia (Ph-
ALL) in second or greater relapse or whose disease has progressed following two or more lines of anti-leukemia therapy. We originally out-licensed Marqibo
to Talon Therapeutics Inc. (“Talon”) in 2006, and in July 2013, Talon was acquired by Spectrum Pharmaceuticals, Inc. (“Spectrum”). Spectrum initiated the
commercial launch of Marqibo in September 2013 through its existing hematology sales force in the United States. In January 2019, Acrotech Biopharma,
LLC, a subsidiary of Aurobindo Pharma USA, Inc., acquired the license for Marqibo from Spectrum.

We  receive  mid-single-digit  royalty  payments  based  on  Marqibo’s  commercial  sales.  In  addition,  Marqibo  is  in  ongoing  clinical  trials  evaluating  two
additional indications, which are Pediatric acute lymphoblastic leukemia and Non-Hodgkin’s lymphoma.

Gritstone Oncology

In  October  2017,  we  entered  into  an  exclusive  license  agreement  with  Gritstone  Oncology,  Inc.  (“Gritstone”)  that  granted  them  worldwide  access  to  our
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 us an upfront payment, and will make payments for achievement of development, regulatory, and
commercial milestones, royalties (which Genevant has a right to 50% of such royalty payments), and reimburses us for conducting technology development
and for providing manufacturing and regulatory support for Gritstone’s product candidates.

University of British Columbia

Certain early work on LNP 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 in 1998 as amended in 2001, 2006
and 2007. We have granted sublicenses under the UBC license to certain third parties, including Alnylam. UBC subsequently filed a demand for arbitration
against us for allegedly unpaid royalties associated with certain of said sublicenses, including the Alnylam sublicense. In the third quarter 2019, the arbitrator
issued his decision for the second phase of the arbitration, awarding UBC $5.9 million, which includes interest of approximately $2.6 million. We paid the
$5.9 million award to UBC in the third quarter of 2019. The arbitrator also held that the third phase of the arbitration, which would address patent validity,
should  we  choose  to  pursue  a  third  phase,  would  not  provide  a  defense  to  the  award.  An  award  for  costs  and  attorneys’  fees  is  still  to  be  determined.  In
December 2019, the arbitrator subsequently issued an interim decision concerning costs and attorneys’ fees, holding that each party is to bear their own costs
and attorneys’ fees with the single exception of an award to UBC for reasonable costs and attorneys’ fees incurred in defending against our counterclaim. The
total of said costs and attorneys’ fees is still to be determined. Please refer to “Item 3. Legal Proceedings” for additional information.

Patents and Proprietary Rights

Our  commercial  success  depends  in  part  on  our  ability  to  obtain  and  maintain  proprietary  protection  for  our  drug  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,  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

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molecules, and RNAi drugs and processes directed at particular disease indications. A large number of patent applications filed with the United States and
European Patent Offices have been granted. In the United States our patents might be challenged by inter parte 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 parte 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 or RNAi platform, including our product candidates.

We have a portfolio of approximately 64 patent families, in the United States and abroad, that are directed to our therapeutic HBV product candidates. The
portfolio includes over 50 issued patents throughout the world and an extensive portfolio of pending patent applications.

Scientific Advisers

We seek advice from our scientific advisory board, which consists of a number of leading scientists and physicians, on scientific and medical matters.

Site Consolidation

In  2018,  we  substantially  completed  a  site  consolidation  and  organizational  restructuring  to  align  our  HBV  business  in  Warminster,  PA,  by  reducing  our
global  workforce  and  by  closing  our  facility  in  Burnaby,  Canada.  For  further  detail,  refer  to  note  10  “Site  Consolidation”  in  the  consolidated  financial
statements in Part II - Item 8.

Employees

At December  31,  2019,  Arbutus  had  80  employees  (78  full-time  and  2  part-time),  62  of  whom  were  engaged  in  research  and  development.  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.

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. 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 pharmaceutical products,
obtaining FDA and other regulatory approvals of products, 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  therapeutics  for
treatment of HBV. These companies include, but are not limited to Johnson and Johnson, Roche, Glaxo Smith Kline, Gilead, Assembly Biosciences, Dicerna,
Replicor, Vir Biotechnology, Enanta and Aligos Therapeutics. Further, it is likely that additional drugs will become available in the future for the treatment of
HBV. These companies are developing products such as capsid inhibitors, RNAi agents, immune modulators, NAs, surface antigen inhibitors, entry inhibitors
and gene editing agents. These products are in various stages of pre-clinical and clinical development.

We anticipate that we will face competition as new products enter the marketplace and advanced technologies become available. Our competitors’ products
may be safer, more effective, or more effectively marketed and sold than any product we may commercialize. Competitive 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 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, complete the clinical trials and regulatory approval processes,
and effectively market any products we develop. Further, we need to attract and retain qualified

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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.

Government Regulation

Regulation by governmental authorities in the United States and in other countries is a significant consideration in our product development, manufacturing
and, upon approval of our product candidates, 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. United States federal laws and regulations govern the testing, development, manufacture, quality control, safety, effectiveness,
approval, storage, labeling, record keeping, reporting, distribution, import, export 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 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 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  regulations  following  any  such
approvals will require the expenditure of significant financial and human resources not currently at our disposal.

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 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 studies, 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.

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  (“cGCP”)  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 before the study
begins. 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

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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 adverse events. 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 cGCP 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 http://clinicaltrials.gov.

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

In  Phase  1,  the  drug  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). Although Phase 1 trials typically are conducted in healthy human subjects,
in some instances (including, for example, with some cancer therapies) the study subjects are patients with the targeted disease or condition.

In Phase 2, the drug 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 drug’s safety. Additional animal toxicology studies may precede
this phase.

In Phase 3, the drug is administered to a larger group of patients, 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 drug’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 drug in the United States submits to the FDA a
New Drug Application (“NDA”). The NDA is a comprehensive, multi-volume application intended to demonstrate the product’s safety and effectiveness and
includes, among other things, pre-clinical and clinical data, information about the drug’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 its 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  after  submission  for  products  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 drug 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. Products with Fast Track designation also may be eligible for more frequent meetings and correspondence
with the FDA about the product’s development. Another FDA program intended to expedite development is Accelerated Approval, which allows approval on
the basis of a surrogate endpoint that is reasonably likely to predict clinical benefit. Breakthrough Therapy designation, which is available for drugs under
development for serious or life-threatening conditions and where preliminary clinical evidence shows that the drug may have substantial improvement on at
least one clinically significant endpoint over available therapy, means that a drug 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

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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/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.

If the FDA concludes that an NDA does not meet the regulatory standards for approval, it typically issues a Complete Response letter, which communicates
the reasons for the agency’s decision not to approve the application and may request additional information, including additional clinical data. 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 or non-clinical studies
or to conduct surveillance programs to monitor the drug’s effects.

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.

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  under  the  Drug  Price  Competition  and  Patent  Term  Restoration  Act  of  1984  (the  “Hatch-Waxman  Act”).  The  Hatch-Waxman  Act
provides  periods  of  exclusivity  for  a  branded  drug  product  that  would  serve  as  a  reference  listed  drug  (“RLD”)  for  a  generic  drug  applicant  filing  an
abbreviated new drug application (“ANDA”) or for an applicant filing a 505(b)(2) NDA application. 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 below). Such a product that is not an
NCE may qualify for a three-year period of exclusivity if its NDA contains new clinical data, 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 3-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.

Competition. The Hatch-Waxman Act establishes two abbreviated approval pathways for drug products that are in some way follow-on versions of already
approved branded NDA products: (i) generic versions of the approved RLD, which may be approved under an 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 the RLD, which may be approved under a 505(b)(2)
NDA, in which the sponsor relies to some degree on the FDA’s finding that the RLD is safe and effective, but submits its own product-specific data to support
the differences between the product and the RLD.

The sponsor of an ANDA or 505(b)(2) application seeking to rely on an approved product as the RLD 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 III” certification is the sponsor’s statement that

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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 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.

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, including limiting,
suspending 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  current  Good
Manufacturing  Practice  (“cGMP”)  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. Failure to comply with applicable cGMP 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 drug products, we cannot be certain that our present or
future third-party manufacturers will consistently comply with cGMP or other applicable FDA regulatory requirements.

Sales  and  Marketing. Once  a  product  is  approved,  its  advertising,  promotion  and  marketing  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 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

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•

•

•

•

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.

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.

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.

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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 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.

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 the Health Insurance Portability and Accountability Act of 1996 (“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.

In California, the CCPA took effect on January 1, 2020. The CCPA establishes certain requirements for data use and sharing transparency and creates new
data  privacy  rights  for  consumers.  These  laws  and  regulations  are  evolving  and  subject  to  interpretation,  and  may  impose  limitations  on  our  activities  or
otherwise adversely affect our business. Similarly, there are 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.

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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 government 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 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 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.

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

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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.  CMS,  the  agency  that
administers the Medicare and Medicaid programs, has authority to revise reimbursement rates and to implement coverage restrictions for some drugs. 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.  While  Medicare  regulations  apply  only  to  drug  benefits  for  Medicare
beneficiaries,  private  payors  often  follow  Medicare  coverage  policy  and  payment  limitations  in  setting  their  own  reimbursement  rates.  Therefore,  any
reduction in reimbursement that results from federal legislation or regulation may result in a similar reduction in payments from private payors.

The  Affordable  Care  Act,  as  amended  by  the  Health  Care  and  Education  Reconciliation  Act  of  2010  (collectively,  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  repeal  or  replace  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. In December 2018, the United States District Court for the Northern District of Texas ruled (i) that the
“individual mandate” is unconstitutional as a result of the associated tax penalty being repealed by Congress as part of the Tax Cuts and Jobs Act; and (ii) the
individual mandate is not severable from the rest of the Affordable Care Act, and as a result the entire Affordable Care Act is invalid. In December 2019, the
United States Court of Appeals for the Fifth Circuit affirmed the district court’s decision that the individual mandate is unconstitutional, but remanded the
case to the district court to reconsider the severability question. It is unclear how the ultimate decision in this case, which is now pending before the United
States  Supreme  Court,  or  other  efforts  to  repeal,  replace,  or  invalidate,  the  Affordable  Care  Act  or  its  implementing  regulations,  or  portions  thereof,  will
impact our business. Additional legislative changes, regulatory changes, and judicial challenges related to the Affordable Care Act remain possible. 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

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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, recent legislative enactments have resulted
in  Medicare  payments  to  providers  being  subject  to  a  reduction  of,  on  average,  two  percent,  referred  to  as  sequestration,  until  2029.  Continuation  of
sequestration or enactment of other reductions in Medicare reimbursement for drugs could affect our ability to achieve a profit on any candidate products that
are approved for marketing.

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  clinical  trials,
approval,  manufacturing,  marketing  and  promotion  and  safety  reporting.  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 the same negative effects as noncompliance in the United
States.

Corporate Information

Arbutus Biopharma Corporation is a publicly traded industry-leading therapeutic solutions company focused on discovering, developing and commercializing
a curative combination regimen for patients suffering from chronic HBV infection.

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.

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.

We have two wholly-owned subsidiaries as of December 31, 2019: Arbutus Biopharma, Inc. and Arbutus Biopharma US Holdings, Inc., which was formed in
2018.

Protiva was acquired on May 30, 2008. On January 1, 2018, Protiva was amalgamated with Arbutus Biopharma Corporation.

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.

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

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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.  Our  reports  filed  or  furnished  pursuant  to  Section  13(a)  or  15(d)  of  the  Securities
Exchange Act of 1934, as amended, including our annual reports on Form 10-K (and our annual reports on Form 20-F up to the year ended December 31,
2012), our quarterly reports on Form 10-Q (and our quarterly reports on Form 6-K up to the quarter-ended September 30, 2013) and our current reports on
Form 8-K, and amendments to those reports, are accessible through our website, free of charge, as soon as reasonably practicable after these reports are filed
electronically with, or otherwise furnished to, the United States Securities and Exchange Commission (“SEC”). We also make available on our website the
charters  of  our  audit  committee,  executive  compensation  and  human  resources  committee  and  corporate  governance  and  nominating  committee,
whistleblower policy, insider trading policy, corporate disclosure policy, related persons transactions policy and majority voting policy, as well as our code of
business conduct and ethics for directors, officers and employees. In addition, we intend to disclose on our web site any amendments to, or waivers from, our
code of business conduct and ethics that are required to be disclosed pursuant to the SEC rules.

The SEC also maintains a website that contains reports, proxy and information statements, and other information regarding Arbutus and other issuers that file
electronically with the SEC. The SEC’s website address is http://www.sec.gov.

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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, financiongal 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
one 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 acceptance for the development and commercialization of any product candidates we develop;
conduct sales and marketing activities;
develop and maintain successful strategic relationships; and

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• 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 chronic HBV in order to ultimately develop a curative combination regimen. 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 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  cure  HBV.  If  we  cannot  develop  compounds  to  achieve  our  goal  of  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 curative combination regimen
for HBV.

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We will require substantial additional capital to fund our operations. If additional capital is not available, we may need to delay, limit or eliminate our
research, development and commercialization processes and modify our business strategy.

Our principal sources of liquidity are cash, cash equivalents and marketable securities of $90.8 million as of December 31, 2019. We believe that our existing
cash, cash equivalents and marketable securities will be sufficient to fund our operations into mid-2021. 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:

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revenues earned from our licensing partners, including Alnylam, Gritstone and Acrotech;
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, product candidates or technology for development;
our ability to attract and retain corporate partners, and their effectiveness in carrying out the development and ultimate commercialization of one or
more of our product candidates;
whether batches of drugs that we manufacture fail to meet specifications resulting in 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 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 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:

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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 ore 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.

We have incurred losses in nearly every year since our inception and we anticipate that we will not achieve sustained 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, 2019 and have not received any revenues other than from research and development collaborations, royalties, license fees and milestone
payments. From inception to December 31, 2019, we have an accumulated net deficit of $970.1 million. 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  sustained  profits  until  such  time  as  milestone  payments,  product  sales  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.

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

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:

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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 a partner 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;

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

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We will seek to raise additional funds in the future, which may be dilutive to shareholders or impose operational restrictions.

We will need to raise additional capital in the future to help fund our pre-clinical studies, clinical trials and for the development and commercialization of our
product candidates for which we obtain regulatory approval. If we raise additional capital through the issuance of equity securities, the percentage ownership
of our current shareholders will be reduced. We  may  also  issue  equity  as  part  of  the  consideration  to  our  licensors,  to  compensate  consultants  or  to  settle
outstanding payables. Our shareholders may experience additional dilution in net book value per share and any 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 cannot raise additional funds, we will have to delay our development activities or cease operations.

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 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.

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. Such testing is expensive and time-consuming and requires specialized knowledge and expertise.

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Clinical  trials  are  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:

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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 clinical research organizations (“CROs”) and clinical trial sites;
delay or failure in obtaining approval of an institutional review board (“IRB”) before a clinical trial can be initiated at a given site;
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 patients in our clinical trials;
delay or failure in having patients 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 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;
inability to monitor patients adequately during or after treatment;
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 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. 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. Any of these
occurrences may harm our business, financial condition, results of operations, cash flows and prospects significantly. In addition, many of the factors that
cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product
candidates.

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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.  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
such product candidate, 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, such as our decisions to no longer pursue AB-452 and AB-506. 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.

We face risks related to health epidemics and outbreaks, including the coronavirus, which could significantly disrupt our preclinical studies and clinical
trials.

In December 2019, a novel strain of coronavirus (COVID-19) was reported to have surfaced in Wuhan, China. The duration and the geographic impact of the
business  disruption  and  related  financial  impact  resulting  from  the  coronavirus  cannot  be  reasonably  estimated  at  this  time  and  our  business  could  be
adversely impacted by the effects. We are currently conducting clinical trials in Moldova, Thailand, South Korea, Hong Kong, Australia and New Zealand.
Enrollment of patients in these clinical trials and future clinical trials in these regions may be delayed due to the outbreak of COVID-19. In addition, we rely
on  independent  clinical  investigators,  contract  research  organizations  and  other  third-party  service  providers  to  assist  us  in  managing,  monitoring  and
otherwise  carrying  out  our  preclinical  studies  and  clinical  trials,  and  the  outbreak  may  affect  their  ability  to  devote  sufficient  time  and  resources  to  our
programs. We also rely on third party suppliers and contract manufacturers to produce the drug product we utilize in our clinical trials, and the outbreak may
cause delays in delivery of APIs and drug product.  As a result, the expected timeline for data readouts of our preclinical studies and clinical trials and certain
regulatory filings may be negatively impacted, which would adversely affect our business.

Clinical trial results may fail to support approval of our product candidates.

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

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a different view, we may still fail to obtain regulatory approval of our product candidates. This,  in  turn,  would  significantly  adversely  affect  our  business
prospects.

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, South Korea, Hong-Kong, Australia
and New Zealand. 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, 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 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 commercial our product candidates in jurisdictions outside the United States.

To obtain marketing approval, United States laws require:

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controlled research and human clinical testing;
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 Good Manufacturing Practice 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  other  jurisdictions  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:

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disagreement with the design or implementation of our clinical trials;
failure to demonstrate that our 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 a comparable regulatory authority outside the United States may require us to conduct additional pre-clinical and clinical testing, which may
delay or prevent approval 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 clinical trials. Any  of  these  scenarios  could  materially  harm  the  commercial  prospects  of  a
product candidate, and

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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 patient
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,  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 withdrawn. Any delay in, denial, or withdrawal of marketing approval for one of our product
candidates  will  adversely  affect  our  financial  position.  Even  if  our  product  candidates  receive  marketing  approval,  undesirable  side  effects  may  limit  the
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.

Even if our product candidates obtain approval, they may be negatively impacted by future development or regulatory difficulties.

Approved 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. If we or any
of the third parties on which we rely fail to meet those requirements, it could lead to enforcement action, among other consequences, that 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.

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. Patient enrollment is affected by a variety factors including, among others:

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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;
proximity and availability of clinical trial sites for prospective patients;
availability of competing therapies and clinical trials;
efforts to facilitate timely enrollment in clinical trials;
patient referral practices of physicians; 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 our product candidates, delays in testing the effectiveness
of our technology or termination of the clinical trials altogether.

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

Our ability to generate revenues and become profitable will depend in large part on the future commercial success of our HBV 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, 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:

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their efficacy, safety and other potential advantages in relation to alternative treatments;
their relative convenience and ease of administration;
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.

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. 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 pharmaceutical 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.  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.

If the market opportunities for our product candidates are smaller than we believe they are, our results of operations may be adversely affected and our
business may suffer.

We focus our research and product development on treatments of chronic HBV. Our projections of the number of people who have chronic HBV are based on
estimates. These estimates may prove to be incorrect and the number of patients in the United States and elsewhere may turn out to be lower than expected,
may not be otherwise amenable to treatment with our products, or new patients may become increasingly difficult to identify or gain access to, all of which
would adversely affect our results of operations and our business.

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Recently  enacted  and  future  legislation  may  increase  the  difficulty  and  cost  for  us  to  obtain  marketing  approval  of  and  commercialize  our  product
candidates and affect the prices we may obtain.

In the United States and some jurisdictions outside the United States, there have been, and continue to be, a number of legislative and regulatory changes and
proposed changes regarding the healthcare system that could, among other things, prevent or delay marketing approval of our product candidates, restrict or
regulate post-approval activities and affect our ability to profitably sell any products for which we obtain marketing approval.

For  example,  in  March  2010,  the  Patient  Protection  and  Affordable  Care  Act,  as  amended  by  the  Health  Care  Education  Reconciliation  Act  of  2010,  or
collectively  the  Affordable  Care  Act,  was  enacted  to  broaden  access  to  health  insurance,  reduce  or  constrain  the  growth  of  healthcare  spending,  enhance
remedies against fraud and abuse, add new transparency requirements for health care and health insurance industries, impose new taxes and fees on the health
industry  and  impose  additional  health  policy  reforms.  The  Affordable  Care  Act  has  substantially  changed  the  way  healthcare  is  financed  by  both
governmental and private insurers and has significantly affected the pharmaceutical industry.

Certain  provisions  of  the  Affordable  Care  Act  have  been  subject  to  judicial  challenges  as  well  as  efforts  to  repeal  or  replace  them  or  to  alter  their
interpretation  and  implementation.  For  example,  the  Tax  Cuts  and  Jobs  Act  (TCJA)  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. Further, the Bipartisan Budget Act of 2018 among other things amended the
Medicare statute, effective January 1, 2019, to reduce the coverage gap in most Medicare drug plans, commonly known as the “donut hole,” by raising the
manufacturer discount under the Medicare Part D coverage gap discount program to 70%. In addition, President Trump signed an Executive Order directing
federal agencies with authorities and responsibilities under the Affordable Care Act to waive, defer, grant exemptions from, or delay the implementation of
any  provision  of  the  Affordable  Care  Act  that  would  impose  a  fiscal  or  regulatory  burden  on  states,  individuals,  healthcare  providers,  health  insurers,  or
manufacturers  of  pharmaceuticals  or  medical  devices.  On  October  13,  2017,  President  Trump  signed  an  Executive  Order  terminating  the  cost-sharing
subsidies under the Affordable Care Act. In addition, CMS has issued regulations giving states greater flexibility, starting in 2020, in the identification of the
essential health benefits benchmarks for non-grandfathered individual and small group market health insurance coverage, including plans sold through the
health insurance exchanges established under the Affordable Care Act. Additional legislative changes, regulatory changes, and judicial challenges related to
the Affordable Care Act remain possible, but the nature and extent of such potential changes or challenges are uncertain at this time. The implications of the
Affordable  Care  Act,  and  efforts  to  repeal  and  replace,  or  invalidate,  the  Affordable  Care  Act,  its  implementing  regulations,  or  portions  thereof,  or  the
political uncertainty surrounding any repeal or replacement legislation for our business and financial condition, if any, are not yet clear.

We cannot predict what healthcare reform initiatives may be adopted in the future. Further federal and state legislative and regulatory developments are likely,
and we expect ongoing initiatives in the United States to increase pressure on drug pricing. Such reforms could have an adverse effect on anticipated revenues
from product candidates that we may successfully develop and for which we may obtain regulatory approval and may affect our overall financial condition
and ability to develop product candidates.

Legislative  and  regulatory  proposals  have  also  been  made  to  expand  post  approval  requirements  and  restrict  sales  and  promotional  activities  for
pharmaceutical products. Any healthcare reforms enacted in the future may, like the Affordable Care Act, be phased in over a number of years but, if enacted,
could reduce our revenue, increase our costs, or require us to revise the ways in which we conduct business or put us at risk for loss of business. We are not
sure whether additional legislative changes will be enacted, or whether the current regulations, guidance or interpretations will be changed, or what the impact
of such changes on our business, if any, may be.

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

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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.

If  we  are  able  to  successfully  commercialize  any  of  our  products  and  if  we  participate  in  the  Medicaid  Drug  Rebate  Program  or  other  governmental
pricing programs, failure to comply with reporting and payment obligations under these programs could result in additional reimbursement requirements,
penalties, sanctions and fines which could have a material adverse effect on our business, financial condition, results of operations and growth prospects.

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 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.

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 certain
federal agencies and grantees, a manufacturer also must participate in the Federal Supply Schedule (“FSS”) pricing program, established by Section 603 of
the Veterans Health Care Act of 1992 (“VHCA”). Under this program, the manufacturer is obligated to make its covered drugs available for procurement on
an FSS contract and charge a price to the Big Four agencies that is no higher than the statutory Federal Ceiling Price. Moreover, pursuant to Defense Health
Agency  (“DHA”)  regulations,  manufacturers  must  provide  rebates  on  utilization  of  their  covered  drugs  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 (“Non-FAMP”) and the Federal Ceiling Price (“FCP”) in effect on the dispense date (these price points are
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.

The Medicaid Drug Rebate Program and other governmental pricing programs require participating manufacturers to report pricing data to the government.
Pricing calculations vary among products and programs and include average manufacturer price and best price for the Medicaid Drug Rebate Program, and
FCP and non-FAMP for the FSS pricing program.

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If we successfully commercialize any of our products and participate in such governmental pricing programs, we will be liable for errors associated with our
submission of pricing data. That liability could be significant. Pricing submissions and rebate calculations are complex and are often subject to interpretation
by us, governmental or regulatory agencies and the courts. If we fail to comply with any applicable reporting and payment obligations under governmental
pricing  programs  that  we  participate  in,  we  could  be  subject  to  additional  reimbursement  requirements,  significant  civil  monetary  penalties,  sanctions  and
fines, and those could negatively impact our business, financial condition, results of operations and growth prospects. Any threatened or actual government
enforcement action could also generate adverse publicity and require that we devote substantial resources that could otherwise be used in other aspects of our
business. We cannot assure you that our submissions would not be found by the applicable governmental agency to be incomplete or incorrect.

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 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  embezzling  or  stealing  from  a  health  care  benefit  program,  willfully  obstructing  a  criminal  investigation  of  a  health  care  offense,  or
knowingly and willfully making false statements relating to healthcare matters;

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), 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

35

•

•

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 civil penalties,

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  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; 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.

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Risks Related to Our Dependence on Third Parties

We depend on our license agreement with Alnylam for the commercialization of ONPATTRO.

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, Arbutus 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  will  revert  to  Arbutus.  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; and

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  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 adversely affected.

We expect that we will depend in part on our licensing agreements with Alnylam, Gritstone, and Acrotech 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.

If conflicts arise between our licensing partners and us, our 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 licensing partners, including Alnylam, Gritstone, and Acrotech, 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 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

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

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 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 receives FDA approval, we
expect  to  rely  on  third-party  contractors  to  manufacture  our  drugs.  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 drugs 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  products,  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.

We have no experience selling, marketing or distributing drug products and currently have no internal capability to do so.

We  currently  have  no  sales,  marketing  or  distribution  capabilities.  While  we  intend  to  have  a  role  in  the  commercialization  of  our  product  candidates,  if
approved,  we  do  not  anticipate  having  the  resources  in  the  foreseeable  future  to  develop  global  sales  and  marketing  capabilities  for  all  of  our  proposed
products. Our future success depends, in part, on our ability to enter into and maintain

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collaborative  relationships  with  other  companies  that  have  sales,  marketing  and  distribution  capabilities,  a  strategic  interest  in  the  products  under
development,  and  the  ability  to  successfully  market  and  sell  our  products.  To  the  extent  that  we  decide  not  to,  or  are  unable  to,  enter  into  collaborative
arrangements  with  respect  to  the  sales  and  marketing  of  our  proposed  products,  significant  capital  expenditures,  management  resources  and  time  will  be
required  to  establish  and  develop  an  in-house  marketing  and  sales  force  with  the  necessary  expertise.  We cannot make assurances that we will be able to
establish or maintain relationships with third-party collaborators or develop in-house sales and distribution capabilities. To the extent that we depend on third
parties for marketing and distribution, any revenues we receive will depend upon the efforts of such third parties, as well as the terms of our agreements with
such  third  parties,  which  cannot  be  predicted  at  this  early  stage  of  our  development.  We  cannot  make  assurances  that  such  efforts  will  be  successful.  In
addition, we cannot make assurances that we will be able to market and sell our products in the United States or in other locations around the world.

Risks Related to Patents, Licenses and Trade Secrets

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

RNA interference, capsid inhibitors and RNA destabilizer, as well as our other novel HBV assets, are relatively new scientific fields that 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. Because the field is so new, very few
of these patent applications have been fully processed by government patent offices around the world, and there is a great deal of uncertainty about which
patents will be issued, when, to whom, and with what claims. It is likely that there could be litigation and other proceedings, such as inter parte 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.

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
United States Patent and Trademark Office 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 may not provide the holder with any competitive advantages;
patents could be challenged by third parties;
the patents of others could impede our ability to do business;
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, if patents that
cover our activities are issued to other companies, there can be no assurance that we would be able to obtain licenses to these patents at a reasonable cost or
be able to develop or obtain alternative technology. If we do not obtain such licenses, we could encounter delays in the introduction of products, or could find
that the development, manufacture or sale of products requiring such licenses is prohibited. In addition, we could incur substantial costs in defending patent
infringement suits brought against us or 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.

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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.

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 may not effectively prevent disclosure
of confidential information and 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 Competition

The  pharmaceutical  market  is  intensely  competitive.  If  we  are  unable  to  compete  effectively  with  existing  drugs,  new  treatment  methods  and  new
technologies, we may be unable to successfully commercialize any product candidates that we develop.

The pharmaceutical market is intensely competitive and rapidly changing. Many large pharmaceutical and biotechnology companies, academic institutions,
governmental agencies and other public and private research organizations are pursuing the development of novel drugs for the same diseases that we are
targeting or expect to target. Many of our competitors have:

• much  greater  financial,  technical  and  human  resources  than  we  have  at  every  stage  of  the  discovery,  development,  manufacture  and

commercialization process;

• more  extensive  experience  in  pre-clinical  testing,  conducting  clinical  trials,  obtaining  regulatory  approvals,  and  in  manufacturing,  marketing  and

selling pharmaceutical products;
product candidates that are based on previously tested or accepted technologies;
products that have been approved or are in late stages of development; and
collaborative arrangements in our target markets with leading companies and research institutions.

•
•
•

We will face competition from products that have already been approved and accepted by the medical community for the treatment of the conditions for
which we are currently developing products. We also expect to face competition from new products that enter the market. We believe a significant number
of products are currently under development, and may become commercially available in the future, for the treatment of conditions for which we may try
to develop products. These products,

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or other of our competitors’ products, may be more effective, safer, less expensive or marketed and sold more effectively than any products we develop.

We face significant competition from other biotechnology and pharmaceutical companies targeting HBV.

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 and Johnson, Roche, Glaxo Smith Kline, Gilead, Assembly Biosciences, Dicerna,
Replicor, Vir Biotechnology, Enanta and Aligos Therapeutics. Further, it is likely that additional drugs will become available in the future for the treatment of
HBV.

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 approvals of those product candidates in the United
States  and  other  countries.  Our  current  and  potential  future  competitors  also  have  significantly  more  experience  commercializing  drugs  that  have  been
approved for marketing. Mergers and acquisitions in the pharmaceutical and biotechnology industries could result in even more resources being concentrated
among a small number of our competitors.

We  anticipate  significant  competition  in  the  HBV  market  with  several  early  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:

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•
•
•
•
•

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 obsolete or uncompetitive before we can recover the expenses
of developing and commercializing our product candidates. Such competitors could also recruit our employees, which could negatively impact our level of
expertise  and  the  ability  to  execute  on  our  business  plan.  Furthermore,  we  also  face  competition  from  existing  and  new  treatment  methods  that  reduce  or
eliminate  the  need  for  drugs,  such  as  the  use  of  advanced  medical  devices.  The  development  of  new  medical  devices  or  other  treatment  methods  for  the
diseases we are targeting and may target could make our product candidates non-competitive, obsolete or uneconomical.

Risks Related to Managing our Operations

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

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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.

We may have difficulty managing our growth and expanding our operations successfully as we continue to evolve from a company primarily involved in
discovery and pre-clinical testing into one that develops products through clinical development and commercialization.

As product candidates we develop enter and advance through clinical trials, we will need to expand our development, regulatory, manufacturing, clinical and
medical capabilities or contract with other organizations to provide these capabilities for us. As our operations expand, we expect that we will need to manage
additional  relationships  with  various  collaborators,  suppliers  and  other  organizations.  Our  ability  to  manage  our  operations  and  growth  will  require  us  to
continue to improve our operational, financial and management controls, reporting systems and procedures. We may not be able to implement improvements
to our management information and control systems in an efficient or timely manner and may discover deficiencies in existing systems or controls.

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  Canadian  Nuclear  Safety  Commission  and  the  United  States  Nuclear
Regulatory  Commission  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 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. Disruption, degradation, or
manipulation of these applications and systems through intentional or accidental means could impact key business processes. Despite the implementation of
security measures, our internal computer systems and those of our contractors and consultants are vulnerable to damage from computer viruses, cybersecurity
breaches and other forms of unauthorized access, as well as natural disasters, terrorism, war, and telecommunication and electrical failures. Such events could
result in exposure of confidential information, the modification of critical data, 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. To the extent that any disruption or security breach will result in a loss of or damage to our data, or
inappropriate disclosure of confidential or proprietary information, we could incur liability and the development of our product candidates could be delayed.
While we have implemented security measures, including controls over unauthorized access, our internal computer systems and those of our contractors and
consultants  are  vulnerable  to  damage  from  these  events.  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 that could result in financial, legal, business
or reputational harm to us or that our insurance would provide any or adequate coverage of any such loss.

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If we fail to maintain an effective system of internal control over financial reporting, we may not be able to accurately report our financial reports, which
could have a material adverse effect on our share price and our ability to raise capital.

A failure to maintain effective internal control over financial reporting or disclosure controls and procedures could adversely affect our ability to report our
financial results accurately and on a timely basis, which could result in a material misstatement in our financial statements, a loss of investor confidence in
our financial reporting or adversely affect our access to sources of liquidity. Furthermore, because of the inherent limitations of any system of internal control
over financial reporting, including the possibility of human error, the circumvention or overriding of controls and fraud, even effective internal controls may
not  prevent  or  detect  all  misstatements.  Frequent  or  rapid  changes  in  procedures,  methodologies,  systems  and  technology  exacerbate  the  challenge  of
developing and maintaining a system of internal controls and can increase the cost and level of effort to develop and maintain such systems.

See Item 9A, “Controls and Procedures” in this Form 10-K for additional information and management’s assessment of internal controls.

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.

As  of  March  2,  2020,  executive  officers,  directors,  five  percent  or  greater  shareholders,  and  their  respective  affiliated  entities  beneficially  own,  in  the
aggregate, approximately 41% of our outstanding common shares.

Entities associated with Roivant Sciences Ltd. (“Roivant”) collectively hold as a group approximately 23% of our outstanding common shares as of March 2,
2020. In addition, in October 2017, we issued 500,000 Series A participating convertible preferred shares (“Preferred Shares”) to Roivant for gross proceeds
of  $50.0  million.  We  issued  a  second  tranche  of  664,000  Preferred  Shares  to  Roivant  in  January  2018  for  gross  proceeds  of  $66.4  million.  The  Preferred
Shares are non-voting and are convertible into 22,589,601 common shares at a conversion price of $7.13 per share (which represents a 15% premium to the
closing price of $6.20 per share on October 16, 2017). The Preferred Shares are currently not convertible into common shares. The purchase price for the
Preferred Shares plus an amount equal to 8.75% per annum, compounded annually, will be subject to mandatory conversion into common shares on October
18,  2021  (subject  to  limited  exceptions  in  the  event  of  certain  fundamental  corporate  transactions  relating  to  our  capital  structure  or  assets,  which  would
permit earlier conversion at Roivant’s option). Assuming the Preferred Shares were converted as of March 2, 2020, Roivant would hold approximately 39
million common shares, or, 42% of our outstanding common shares.

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
acquiror 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.

In addition, for so long as Roivant has beneficial ownership or exercises control or direction over not less than (i) 30% of the issued and outstanding common
shares (including common shares issuable upon the conversion of the Preferred Shares), Roivant has the right to nominate three individuals for election to our
board of directors, one of whom must be “independent” within the meaning of applicable law and the rules and regulations of The Nasdaq Stock Market LLC,
not including the rules related to the independence of audit committee members; (ii) 20% of the issued and outstanding common shares (including common
shares

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issuable upon the conversion of the Preferred Shares), Roivant has the right to nominate two individuals for election to our board of directors; and (iii) 10% of
the  issued  and  outstanding  common  shares  (including  common  shares  issuable  upon  the  conversion  of  the  Preferred  Shares),  Roivant  has  the  right  to
nominate one individual for election to our board of directors. For so long as Roivant has the right to nominate one or more directors to our board of directors,
the total number of directors will not, without the prior written consent of Roivant, be permitted to exceed eight directors, the majority of whom must be
“independent”. Roivant consented to increasing the size of the board to eight in connection with the appointment of Andrew Cheng, M.D., PhD., to the board
of directors. While the directors appointed by Roivant are obligated to act in accordance with their fiduciary duty to the Company, they may have equity or
other interests in Roivant and, accordingly, their personal interests may be aligned with Roivant’s interests, which may not always coincide with our corporate
interests  or  the  interests  of  our  other  shareholders.    The  directors  are  required  to  disclose  any  potential  material  conflicts  of  interest.  The  current  Roivant
nominated directors are Frank Torti, M.D., our Chairman of the Board, Eric Venker, M.D., Pharm.D. and Keith Manchester, M.D.

The trading price of the shares of our common shares has been highly volatile, and purchasers of our common shares could incur substantial losses.

The market price of our common shares has and may continue to fluctuate significantly in response to factors, some of which are beyond our control. The
stock market in general has recently experienced extreme price and volume fluctuations. The market prices of securities of pharmaceutical and biotechnology
companies have been extremely volatile, and have experienced fluctuations that often have been unrelated or disproportionate to the operating performance of
these companies. These broad market fluctuations could result in extreme fluctuations in the price of our common shares, which could cause our investors to
incur substantial losses. Our share price could be subject to wide fluctuations in response to a variety of factors, which include:

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•
•
•
•
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•
•
•
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•

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whether our product candidates can be advanced as expected;
whether our clinical trials can be conducted within the timeframe that we expect and whether such trials will yield positive results;
changes in laws or regulations applicable to our product candidates, including but not limited to clinical trial requirements for approvals;
unanticipated serious safety concerns related to the use of our product candidates;
a decision to initiate a clinical trial, not to initiate a clinical trial or to terminate an existing clinical trial;
adverse regulatory decisions;
the introduction of new products or technologies offered by us or our competitors;
the inability to effectively manage our growth;
actual or anticipated variations in quarterly operating results;
the failure to meet or exceed the estimates and projections of the investment community;
the perception of the biopharmaceutical industry by the public, legislatures, regulators and the investment community;
the overall performance of the United States equity capital markets and general political and economic conditions;
announcements of significant acquisitions, strategic partnerships, joint ventures, collaborations or capital commitments by us or our competitors;
disputes or other developments relating to proprietary rights, including patents, litigation matters and our ability to obtain patent protection for our
technologies;
additions or departures of key personnel;
the trading volume of our common shares; and
other events or factors, many of which are beyond our control.

Our  operating  results  may  fluctuate  significantly  in  the  future,  which  may  cause  our  results  to  fall  below  the  expectations  of  securities  analysts,
shareholders and investors.

Our  operating  results  may  fluctuate  significantly  in  the  future  as  a  result  of  a  variety  of  factors,  many  of  which  are  outside  of  our  control.  These  factors
include, but are not limited to:

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the timing, implementation and cost of our research, pre-clinical studies and clinical trials;
our ability to attract and retain personnel with the necessary strategic, technical and creative skills required for effective operations;
the amount and timing of expenditures by practitioners and their patients;

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introduction of new technologies;
product liability litigation, class action and derivative action litigation, or other litigation;
the amount and timing of capital expenditures and other costs relating to the expansion of our operations;
the state of the debt and/or equity capital markets at the time of any proposed offering we choose to initiate;
our ability to successfully integrate new acquisitions into our operations;
government regulation and legal developments regarding our product candidates in the United States and in the foreign countries in which we may
operate in the future; and
general economic conditions.

As a strategic response to changes in the competitive environment, we may from time to time make pricing, service, technology or marketing decisions or
business or technology acquisitions that could have a material adverse effect on our operating results. Due to any of these factors, our operating results may
fall below the expectations of securities analysts, shareholders and investors in any future period, which may cause our share price to decline.

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  those  persons  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.

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, 2019. 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.

We may be prohibited from fully using our United States net operating loss carryforwards, which could affect our financial performance.

As of December 31, 2019, we had $11.7 million of net operating losses due to expire in 2035 and $62.0 million of net operating loss (“NOL”) carryforwards
subject  to  an  indefinite  carryforward  period  which  can  be  used  to  offset  future  taxable  income  in  the  United  States.  We  also  had  research  tax  credit
carryforwards  of  approximately  $3.9  million  for  United  States  federal  income  tax  purposes,  expiring  in  varying  amounts  through  the  year  2038.  Under
Section 382 of the Code, if a corporation undergoes an “ownership change,” generally defined as a greater than 50% change (by value) in its equity ownership
over a three year period,

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the corporation’s ability to use its pre-change NOL carryforwards and other pre-change tax attributes (such as research tax credits) to offset its post-change
income  may  be  limited.  As  of  December  31,  2019,  we  had  gross  net  operating  losses  of  approximately  $164.9  million  for  Canadian  federal  income  tax
purposes, expiring in varying amounts through the year 2038. We also have research tax credit carryforwards of approximately $60.6 million available for
indefinite  carryforward.    Canadian  tax  law  has  similar  restrictions  as  the  United  States  Tax  Code  on  a  corporation’s  ability  to  use  its  pre-change  NOL
carryforwards and other pre-change tax attributes. Consequently, our Canadian NOLs could be limited if the organization undergoes an ownership change.

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.  We  may
experience ownership changes in the future as a result of subsequent shifts in our stock ownership. As a result, if we earn net taxable income, our ability to
use our pre-change NOL carryforwards to offset United States and Canadian federal taxable income may be subject to limitations, which could potentially
result in increased future tax liability to us. In addition, at the state level, there may be periods during which the use of NOL carryforwards is suspended or
otherwise  limited,  which  could  accelerate  or  permanently  increase  state  taxes  owed.  Furthermore,  these  losses  could  expire  before  we  generate  sufficient
income to utilize them.

Future changes to tax laws could materially adversely affect our company and reduce net returns to our shareholders.

The tax treatment of the company is subject to changes in tax laws, regulations and treaties, or the interpretation thereof, tax policy initiatives and reforms
under  consideration  and  the  practices  of  tax  authorities  in  jurisdictions  in  which  we  operate,  as  well  as  tax  policy  initiatives  and  reforms  related  to  the
Organisation  for  Economic  Co-Operation  and  Development’s,  or  OECD,  Base  Erosion  and  Profit  Shifting,  or  BEPS,  Project,  the  European  Commission’s
state  aid  investigations  and  other  initiatives.  Such  changes  may  include  (but  are  not  limited  to)  the  taxation  of  operating  income,  investment  income,
dividends received or (in the specific context of withholding tax) dividends paid. We are unable to predict what tax reform may be proposed or enacted in the
future or what effect such changes would have on our business, but such changes, to the extent they are brought into tax legislation, regulations, policies or
practices, could affect our financial position and overall or effective tax rates in the future in countries where we have operations, reduce post-tax returns to
our shareholders, and increase the complexity, burden and cost of tax compliance.

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.

Future sales of our common shares may depress our share price.

The market price of our common shares could decline as a result of sales of substantial amounts of our common shares in the public market, or as a result of
the  perception  that  these  sales  could  occur,  which  could  occur  if  we  issue  a  large  number  of  common  shares  (or  securities  convertible  into  our  common
shares) in connection with a future financing, as our common shares are trading at low levels. These factors could make it more difficult for us to raise funds
through future offerings of common shares or other equity securities.

46

An active market for our common shares may not be sustained.

Although our common shares are listed on the Nasdaq Global Select Market, an active trading market for our common shares may not be sustained, especially
given the large percentage of our common shares held by our affiliates. If an active market for our common shares is not sustained, it may be difficult for our
shareholders to sell shares without depressing the market price for our common shares.

Additional  shares  that  may  be  issued  upon  the  exercise  of  currently  outstanding  options  or  upon  the  conversion  of  Preferred  Shares  would  dilute  the
voting power of our currently outstanding common shares and could cause our share price to decline.

As of March 2, 2020, we had outstanding options to acquire approximately 10.6 million common shares and outstanding Preferred Shares convertible into
approximately 23 million common shares on October 18, 2021. The issuance of our common shares upon exercise of the stock options or conversion of the
Preferred Shares would result in dilution to the interests of other holders of our common shares and could adversely affect our share price.

We do not expect to pay dividends for the foreseeable future.

We have not paid any cash dividends to date and we do not intend to declare dividends for the foreseeable future, as we anticipate that we will reinvest future
earnings, if any, in the development and growth of our business. Therefore, investors will not receive any funds unless they sell their common shares, and
shareholders may be unable to sell their shares on favorable terms or at all. We cannot assure you of a positive return on investment or that you will not lose
the entire amount of your investment in our common shares. Prospective investors seeking or needing dividend income or liquidity should not purchase our
common shares.

The value of our securities, including our common shares, might be affected by matters not related to our operating performance and could subject us to
securities litigation.

The value of our common shares may be reduced for a number of reasons, many of which are outside our control, including:

•
•
•
•
•
•
•
•
•
•
•
•

general economic and political conditions in Canada, the United States and globally;
governmental regulation of the health care and pharmaceutical industries;
failure to achieve desired drug discovery outcomes by us or our collaborators;
failure to obtain industry partner and other third party consents and approvals, when required;
stock market volatility and market valuations;
competition for, among other things, capital, drug targets and skilled personnel;
the need to obtain required approvals from regulatory authorities;
revenue and operating results failing to meet expectations in any particular period;
investor perception of the health care and pharmaceutical industries;
limited trading volume of our common shares;
announcements relating to our business or the businesses of our competitors; and
our ability or inability to raise additional funds.

If securities analysts do not publish research or reports about our business, or if they publish negative evaluations, the price of our common shares could
decline.

The trading market for our common shares may be impacted by the availability or lack of research and reports that third-party industry or financial analysts
publish about us. There are many large, publicly traded companies active in the biopharmaceutical industry, which may mean it will be less likely that we
receive widespread analyst coverage. Furthermore, if one or more of the analysts who do cover us downgrade its shares, its share price would likely decline.
If we do not receive adequate coverage by reputable analysts that have an understanding of our business and industry, it could fail to achieve visibility in the
market, which in turn could cause our share price to decline.

47

Item 1B. Unresolved Staff Comments

There are currently no unresolved staff comments.

Item 2. Properties

In August 2016, we signed a lease agreement effective November 1, 2016, subsequently amended on October 7, 2016, to enable moving our headquarters to
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.

In November 2018, we signed a new lease agreement effective January 1, 2019, for approximately 8,500 square feet of office space at 626 Jacksonville Rd,
Warminster, Pennsylvania. The lease has a three year term and we have an option to extend the lease term to April 30, 2027.

Previously, we leased 51,000 square feet of laboratory facilities and office space located at 100-8900 Glenlyon Parkway, Burnaby, British Columbia, Canada.
In early 2018, we implemented a site consolidation and organizational restructuring to align our HBV business in Warminster, Pennsylvania. We ceased use
of our Burnaby facility for R&D activities as of June 30, 2018 and we allowed the lease to expire according to its terms on July 31, 2019.

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

We  are  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 LNP delivery systems and related inventions was undertaken by UBC, as well as by us and assigned to UBC. These inventions were
subsequently licensed to us by UBC under a license agreement, initially entered into in 1998 and subsequently amended in 2001, 2006 and 2007. We have
granted sublicenses under the UBC license to Alnylam as well as other parties.

In November 2014, UBC filed a demand for arbitration against us and UBC also sought interest and costs, including legal fees. We filed our Statement of
Defense to UBC’s Statement of Claims, as well as a Counterclaim involving a patent application that we alleged UBC wrongly licensed to a third party. The
proceedings were divided into three phases, with the first hearing taking place in June 2017. In the first phase, the arbitrator determined which agreements are
sublicense agreements within UBC’s claim. Also in the first phase, UBC updated its alleged entitlement from $3.5 million originally claimed to seek $10.9
million in alleged unpaid royalties, plus interest arising from payments as early as 2008. The arbitrator also held in the first phase of the arbitration that the
patent application that is the subject of the Counterclaim was not required to be licensed to Arbutus.  The second phase of arbitration took place in the second
quarter  of  2019.  In  the  third  quarter  2019,  the  arbitrator  issued  his  decision  for  the  second  phase  of  the  arbitration,  awarding  UBC  $5.9  million,  which
includes interest of approximately$2.6 million. We paid the $5.9 million award to UBC in the third quarter of 2019. The arbitrator also held that the third
phase  of  the  arbitration,  which  would  address  patent  validity,  should  we  choose  to  pursue  a  third  phase,  would  not  provide  a  defense  to  the  award.  In
December 2019, the arbitrator issued an interim decision concerning costs and attorneys’ fees, holding that each party is to bear their own costs and attorneys’
fees with the single exception of an award to UBC for reasonable costs and attorneys’ fees incurred in defending against

48

 
our Counterclaim. The determination as to what costs and attorneys’ fees are reasonable in defending against said Counterclaim is still to be determined.

Item 4. Mine Safety Disclosures

Not applicable.

49

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 2, 2020, there were 102 registered holders of common shares and 68,941,406 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, 2019.

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, 2019.

Item 6. Selected Financial Data

We are a smaller reporting company as defined by Rule 12b-2 of the Securities Exchange Act of 1934 and are not required to provide the information under
this item.

50

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

Overview

We  are  a  biopharmaceutical  company  dedicated  to  discovering,  developing,  and  commercializing  a  cure  for  patients  suffering  from  chronic  hepatitis  B
infection,  a  disease  of  the  liver  caused  by  the  hepatitis  B  virus  (“HBV”).  HBV  represents  a  significant,  global  unmet  medical  need.  The  World  Health
Organization estimates that over 250 million people worldwide suffer from HBV infection, while other estimates indicate that approximately 2 million people
in the United States suffer from HBV infection. Chronic HBV infection has high rates of morbidity and mortality with a cure rate for HBV patients taking
standard of care (“SOC”) treatment regimens of less than 5%. Our objective is to develop safe and effective therapies that can be combined and lead to higher
cure rates with finite treatment durations.

To  pursue  our  strategy  of  developing  a  cure  for  chronic  HBV,  we  are  developing  a  diverse  product  pipeline  consisting  of  multiple  drug  candidates  with
potential complementary mechanisms of action MOA, each of which has the potential to improve upon the SOC and contribute to a curative combination
treatment regimen. Our clinical and pre-clinical pipeline includes agents that have the potential to form an effective proprietary combination therapy.

Our product pipeline is entirely focused on finding a curative combination regimen for chronic HBV infection, with the objective of developing a suite of
products that intervene at different points in the viral life cycle and reactivate the host immune system. We are currently conducting one clinical trial and
several pre-clinical studies to evaluate potential combinations of proprietary HBV therapeutic agents in addition to SOC therapies to support their clinical use
in combination. We expect to use the results from these studies to adaptively design additional clinical trials to test the efficacy of the combination therapy
and  the  duration  of  the  result  in  patients.  We  plan  to  identify  a  combination  regimen  to  conduct  Phase  III  clinical  trials  intended  to  ultimately  support
regulatory filings for marketing approval.

Our HBV product pipeline consists of the following programs:

We believe that AB-729, our subcutaneously administered RNA interference (“RNAi”) product candidate, may be combinable with our lead capsid inhibitor
product  candidate,  AB-836,  and  existing  approved  therapies,  in  our  first  combination  therapy  for  HBV  patients.  We  believe  AB-836  has  the  potential  for
improved efficacy and an enhanced resistance profile relative to our previous generation capsid inhibitor product candidate, AB-506. In parallel, we are in
lead  optimization  with  several  compounds  for  our  PD-L1  program  and  next-generation  HBV  RNA  destabilizer  program.  Our  next-generation  HBV  RNA
destabilizer product candidates have distinct chemical scaffolds from AB-452, our previous generation HBV RNA destabilizer.

51

Additionally, 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  from  the  sale  of  this  royalty  interest.  The  royalty  interest  will  revert  back  to  us  after  the  buyer  receives  $30  million  in  royalty  payments  from
Alnylam. 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 Therapeutics, Inc. (“Acuitas”). The royalty from Acuitas has been retained by us and was not part of the royalty sale. Item 7.
Management’s Discussion and Analysis of Financial Condition and Results of Operations - Liquidity and Capital Resources for additional details.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

The  significant  accounting  policies  that  we  believe  to  be  most  critical  in  fully  understanding  and  evaluating  our  financial  results  relate  to  stock-based
compensation,  goodwill  and  intangible  assets  and  our  contingent  consideration.  These  accounting  policies  require  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.

Stock-based compensation

The stock-based compensation expense that we record is a critical accounting estimate due to the value of compensation recorded, the volume of our stock
option activity, and the many assumptions that are required to calculate compensation expense.

Compensation expense is recorded for stock options issued to employees and directors using the fair value method.  We must calculate the fair value of stock
options  issued  and  amortize  the  fair  value  to  stock  compensation  expense  over  the  vesting  period,  and  adjust  the  expense  for  stock  option  forfeitures  and
cancellations.  We use the Black-Scholes model to calculate the fair value of stock options issued which requires that certain estimates, including the expected
life of the option and expected volatility of the stock, be made at the time that the options are issued.  This accounting estimate is reasonably likely to change
from period to period as further stock options are issued and adjustments are made for stock option forfeitures and cancellations. Our accounting policy is to
recognize forfeitures as they occur. The term “forfeitures” is distinct from “cancellations” or “expirations” and represents only the unvested portion of the
surrendered stock option. For the purpose of calculating fair value, we estimate the expected life of stock options granted to be five years for employees and
eight years for directors and executives, based on our historical experience. We amortize the fair value of stock options using the straight-line method over the
vesting period of the options.

We recorded stock-based compensation expense for our equity-classified awards in 2019 of $6.8 million (as compared to $6.2 million in 2018). Stock-based
compensation  expense  for  2019  includes  $1.1  million  of  non-cash  compensation  expense  for  the  accelerated  vesting  of  the  stock  options  of  our  former
President and Chief Executive Officer upon his departure in June 2019.

Goodwill and intangible assets

Intangible assets classified as indefinite-lived and goodwill are not amortized, but are evaluated for impairment annually. In addition, if there is a major event
indicating that the carrying value of an asset may not be recoverable, then management will perform an impairment test in an interim period by comparing the
discounted cash flow values to each asset’s carrying value to determine if a write down is necessary.

In assessing impairment, significant judgments are required to be made by management to estimate the timing and extent of future net cash flows, appropriate
discount  rates,  probability  of  program  success  and  other  estimates  and  assumptions  that  could  materially  affect  the  determination  of  fair  value.  These
judgments include the use of, but are not limited to: projected results of operations and forecast cash flows based on our corporate budgets as approved by our
board of directors, third party forecasts and data and other macroeconomic indicators that forecasts market conditions and our estimated future revenues and
growth, market-based discount rates and other market-comparative data. As assumptions related to the probability of program success and timing and amount
of potential future cash flows related to these programs are highly uncertain due to the unpredictable nature of each phase of these programs, management risk
adjusts the estimated cash flows to reflect these uncertainties.

52

    
 
 
During the year ended December 31, 2019, we recorded a $43.8 million non-cash impairment expense to reduce the carrying value of our in-process research
and development (“IPR&D”) assets to zero. We also recognized a corresponding income tax benefit of $12.7 million related to the decrease in our deferred
tax  liability  associated  with  the  IPR&D  intangible  assets.  The  impairment  was  due  to  a  decision  to  delay  indefinitely  the  further  development  of  our
covalently closed circular DNA (“cccDNA”) program while we focus on our other development programs.

Also, during the year ended December 31, 2019, we recorded a $22.5 million non-cash impairment expense to reduce the carrying value of our goodwill asset
to zero. Due to a sustained decrease in our share price during 2019, our market capitalization was reduced below the book value of our net assets and we
concluded that the fair value of our single reporting unit was below its carrying amount by an amount in excess of the carrying value of the goodwill asset.

During the year ended December 31, 2018, we recorded a $14.8 million non-cash impairment expense to our intangible assets, less a corresponding income
tax benefit of $4.3 million. This impairment was related to the indefinite deferral of further development of our AB-423 program in the capsid inhibitor drug
class.

Contingent Consideration

In connection with the acquisition of Enantigen in October 2014, we have obligations to make potential future payments of up to $21.0 million to the former
shareholders of Enantigen contingent upon the achievement of certain development milestones and payments of up to $102.5 million upon the achievement of
certain commercial milestones. The development milestones are tied to programs which are no longer under development by us. The sales milestones are tied
to  the  first  commercial  sales  by  us  of  a  product  indicated  for  the  treatment  of  HBV.    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  and  the  achievement  of  development  milestones,  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. These judgments include the use of, but are
not  limited  to:  future  forecasts  and  other  macroeconomic  indicators  that  forecast  market  conditions,  the  timing  and  amount  of  estimated  future  revenues,
market-based  discount  rates  and  other  market-comparative  data.  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, management risk adjusts the estimated cash flows
to reflect these uncertainties. 

53

RESULTS OF OPERATIONS

The following summarizes our results of operations for the year ended December 31, 2019 compared to the year ended December 31, 2018:

Total revenue

Impairment of intangible assets

Impairment of goodwill

Total other operating expenses

Loss from operations

Other income (loss)  

Loss before income taxes

Income tax benefit

Net loss

Dividend accretion of convertible preferred shares

Net loss attributable to common shares

Year Ended December 31,

2019

2018

$

(in thousands)

6,011   $

43,836  

22,471  

83,778  

(144,074)  

(22,305)  

(166,379)  

12,656  

(153,723)  

(11,149)  

$

(164,872)   $

5,945

14,811

—

80,914

(89,780)

28,438

(61,342)

4,282

(57,060)

(10,091)

(67,151)

For the fiscal year ended December 31, 2019, our net loss attributable to common shares was $164.9 million, or a loss of $2.89 per basic and diluted common
share, as compared to a net loss of $67.2 million, or $1.21 per basic and diluted common share, for the year ended December 31, 2018.

Revenue

Revenues for the years ended December 31, 2019 and 2018 are summarized in the following table:

Revenue from collaborations and licenses

Acuitas Therapeutics, Inc.

Alnylam Pharmaceuticals, Inc.

Gritstone Oncology, Inc.

Acrotech Biopharma, LLC

Other milestone and royalty payments

Non-cash royalty revenue

Alnylam Pharmaceuticals, Inc.

Total revenue

Year ended December 31,

2019

2018

(in thousands, except percentages)

$

$

1,931  

—  

1,819  

605  

—  

1,656  

6,011  

32%   $

—%  

30%  

10%  

—%  

28%  

100%   $

1,009  

197  

4,318  

158  

263  

—  

5,945  

17%

3%

73%

3%

4%

—%

100%

Revenues consist mainly of milestone payments, royalties and service fees.

Total revenue increased $0.1 million for the year ended December 31, 2019 compared to 2018,  primarily  due  to  a $2.4 million increase  in  license  royalty
revenue from Alnylam and Acuitas based on net global sales of ONPATTRO, which was approved by the FDA and EMA in the third quarter of 2018. This
increase, along with net increases from Acrotech and other payments received, was partially offset by a $2.5 million decrease in revenues from Gritstone in
2019, as 2018 included milestone payments. The royalty interest for ONPATTRO from Alnylam was sold to OMERS, effective as of January 1, 2019, for $20
million in gross

54

 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
   
   
   
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. 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.”

Operating expenses

Operating expenses for the years ended December 31, 2019 and 2018 are summarized in the following table:

Research and development

General and administrative

Depreciation

Site consolidation

Impairment of intangible assets

Impairment of goodwill

Arbitration

Total operating expenses  

Research and development

$

2019

57,601  

17,727  

2,028  

156  

43,836  

22,471  

6,266  

Year ended December 31,

(in thousands, except percentages)

2018

38%   $

12%  

1%  

—%  

29%  

15%  

4%  

57,934  

16,002  

2,181  

4,797  

14,811  

—  

—  

61%

17%

2%

5%

15%

—%

—%

$

150,085  

100%   $

95,725  

100%

Research  and  development  expenses  consist  primarily  of  clinical  and  pre-clinical  trial  expenses,  personnel  expenses,  consulting  and  third  party  expenses,
consumables and materials, as well as a portion of stock-based compensation and general overhead costs.

Research and development expenses decreased $0.3 million in 2019 primarily due to a decrease in costs for development and characterization activities for
our HBV RNA destabilizer (AB-452) and a decrease in costs associated with a Phase 2 clinical trial for ARB-1467 that was discontinued in 2018. These
decreases were partially offset by an increase in costs associated with a Phase 1a/1b clinical trial for our RNAi therapeutic product candidate (AB-729) and an
increase in costs associated with a Phase 1a/1b clinical trial for our former capsid inhibitor product candidate (AB-506), which was discontinued in the fourth
quarter of 2019.

A  significant  portion  of  our  research  and  development  expenses  are  not  tracked  by  project,  as  they  benefit  multiple  projects  or  our  overall  technology
platform.  However,  our  collaboration  agreements  contain  cost-sharing  arrangements  pursuant  to  which  certain  costs  incurred  under  the  project  are
reimbursed. Costs reimbursed under collaborations typically include certain direct external costs and hourly or full-time equivalent labor rates for the actual
time worked on the project. Therefore, we do track direct external costs attributable to and the actual time our employees worked on our collaborations.

General and administrative

General  and  administrative  expenses  increased $1.7 million  in  2019 compared to 2018,  primarily  due  to  severance  related  to  the  departure  of  our  former
President  and  Chief  Executive  Officer  in  June  of  2019,  partially  offset  by  a  decrease  in  professional  fees.  In  accordance  with  the  terms  of  his  legacy
employment agreement, our former President and Chief Executive Officer received $2.3 million of cash severance and we recognized $1.1 million of non-
cash stock-based compensation expense for the accelerated vesting of his stock options.

55

 
 
 
 
 
 
 
Site consolidation charges

In February 2018, we announced a site consolidation and organizational restructuring to better align our HBV business in Warminster, PA, by reducing our
global workforce and 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 complete in 2018. We expect total site consolidation expenses to be approximately $5.0 million, of
which approximately $4.9 million has been incurred as of December 31, 2019.

Impairment of intangible assets and goodwill

In 2019, we recorded a $43.8 million non-cash impairment expense to reduce the carrying value of its IPR&D intangible assets to zero. We also recognized a
corresponding income tax benefit of $12.7 million related to the decrease in its deferred tax liability related to the IPR&D intangible assets. The impairment
was due to a decision to delay indefinitely the further development of our cccDNA program while we focus on our other development programs.

Also during 2019, we recorded a $22.5 million non-cash impairment to reduce the carrying amount of our goodwill asset to zero. Due to a sustained decrease
in our share price in the months leading-up to the assessment, our market capitalization was reduced below the book value of our net assets and we concluded
that the fair value of our single reporting unit was below its carrying amount by an amount in excess of the carrying amount of the goodwill asset.

During  2018,  we  recorded  an  impairment  charge  of  $14.8 million  and  a  corresponding  income  tax  benefit  of  $4.3 million  related  to  identified  intangible
assets, as a result of our decision to indefinitely delay further development of our AB-423 program.

Arbitration

In the third quarter of 2019, the arbitrator in the arbitration proceedings between the University of British Columbia (“UBC”) and us issued his decision for
the second phase of the arbitration, awarding UBC approximately $5.9 million, which includes interest of approximately $2.6 million. The arbitrator also held
that  the  third  phase  of  the  arbitration,  which  would  address  patent  validity,  should  we  choose  to  pursue  a  third  phase,  would  not  provide  a  defense  to  the
award. An award for costs and attorneys’ fees is still to be determined.

We  recorded  expense  of  $6.3  million  in  2019,  consisting  of  $5.9  million  for  the  award  (including  interest)  and  $0.4  million  for  an  estimate  of  a  potential
award for costs and attorney’s fees.

This arbitration concerned certain early work on lipid nanoparticle delivery systems and related inventions undertaken by us and assigned to UBC. These
inventions were subsequently licensed back to us by UBC under a license agreement, initially entered into in 1998 and subsequently amended in 2001, 2006
and 2007. We have granted sublicenses under the UBC license to Alnylam as well as other third parties. In the arbitration, UBC’s claim was for $10.9 million
plus interest.

Other income (losses)

Other income (losses) for the years ended December 31, 2019 and 2018 are summarized in the following table:

Interest income

Interest expense

Net equity investment (loss) gain

Decrease in fair value of contingent consideration

Foreign exchange gains (losses)

Total other income (loss)

2019

2,111  

(2,108)  

(22,522)  

173  

41  

(22,305)  

Year ended December 31,

2018

(in thousands, except percentages)

(9)%   $

9 %  

101 %  

(1)%   $

— %  

100 %   $

3,047  

(226)  

19,322  

7,298  

(1,003)  

28,438  

11 %

(1)%

68 %

26 %

(4)%

100 %

$

$

$

56

 
 
 
 
Interest income

Interest income decreased $0.9 million in 2019 compared to 2018 primarily due to a lower average balance of cash, cash equivalents and investments and a
decline in market interest rates.

Interest expense

Interest expense increased $1.9 million in 2019 compared to 2018 due primarily to the non-cash amortization of discount and issuance costs related to the sale
of a portion of our ONPATTRO royalty interest in 2019.

Net equity investment (loss) gain

In 2018, together with Roivant, we launched Genevant, a company focused on the discovery, development, and commercialization of a broad range of RNA-
based  therapeutics  enabled  by  our  LNP  Delivery  Technologies.  We  account  for  our  40%  ownership  interest  in  Genevant  using  the  equity  method  of
accounting.

We recorded non-cash equity losses of $22.5 million for the year ended December 31, 2019 and non-cash equity gains of $19.6 million for the year ended
December  31,  2018.  Equity  losses  for  2019  included  $14.9  million  of  losses  for  our  proportionate  share  of  Genevant’s  net  losses  and  a  $7.6  million
impairment charge to reduce the carrying value of our investment in Genevant to zero. The impairment was due to uncertainty surrounding the recovery of
our remaining carrying value in Genevant. Equity gains for 2018 included the $24.9 million gain on our contribution of delivery technology licenses upon the
formation of Genevant, partially offset by $5.6 million of losses for our proportionate share of Genevant’s net loss for the partial year.

Decrease in fair value of contingent consideration

Contingent consideration is a liability we assumed from our acquisition of Arbutus Inc. in March 2015. In October 2014, Arbutus Inc. acquired all of the
outstanding shares of Enantigen Therapeutics, Inc. (“Enantigen”) pursuant to a stock purchase agreement. An additional $102.5 million may also be paid to
Enantigen’s selling stockholders related to the achievement of certain sales performance milestones in connection with the sale of the first commercialized
product by Arbutus Inc. for the treatment of HBV. 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 2018, the fair value of our contingent consideration liability decreased by $7.3 million
due  to  our  decision  to  indefinitely  delay  further  clinical  development  of  AB-423,  thereby  reducing  the  probability  of  achieving  future  development
milestones, as well as adjustments to the estimated timing of future sales milestones. In 2019, we re-evaluated the timing of the future sales milestones after
the discontinuation of the AB-506 program, resulting in a $0.2 million decrease in the fair value of our contingent consideration liability.

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 transaction 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. As a result of the site consolidation, we expect that the proportion of
cash balances and expenses incurred in Canadian dollars, relative to US dollars, to continue to decrease.

During the year ended December 31, 2019, we recorded foreign exchange gains of less than $0.1 million. During  the  year  ended  December  31,  2018, we
recorded foreign exchange losses of $1.0 million.

Income tax benefit

For the years ended December 31, 2019 and 2018, we recorded an income tax benefits of $12.7 million and $4.3 million, respectively, related to the decrease
of our deferred tax liability associated with impairments of our IPR&D intangible assets.

57

 
 
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, royalty monetization, interest income on funds available for investment, and government contracts, grants and tax credits.

As  of  December  31,  2019,  we  had  cash  and  cash  equivalents  of  $31.8 million  and  investments  in  marketable  securities  of  $59.0  million,  totaling  $90.8
million. We had no outstanding debt as of December 31, 2019.

In December 2018, we entered into an Open Market Sale Agreement (“Sale Agreement”) with Jefferies LLC (“Jefferies”), under which we may issue and sell
common shares, from time to time, for an aggregate sales price of up to $50.0 million. For the twelve months ended December 31, 2019, we issued 9,138,232
of  our  common  shares  pursuant  to  the  Sale  Agreement,  resulting  in  net  proceeds  of  approximately  $18.6 million.  There  were  no  shares  issued  during  the
twelve  months  ended December  31,  2018 under  the  Sale  Agreement.  In  December  2019,  we  entered  into  an  amendment  (the  “Amendment”)  to  the  Sale
Agreement  with  Jefferies  in  connection  with  our  filing  of  a  new  shelf  registration  statement  on  Form  S-3  (File  No.  333-235674),  filed  with  the  SEC  on
December 23, 2019 (the “New Shelf Registration Statement”). The Amendment revised the Sale Agreement to reflect that we may sell our common shares,
without  par  value,  from  time  to  time  for  an  aggregate  sales  price  of  up  to  $50.0 million,  under  the  New  Shelf  Registration  Statement.  In  2020,  through
March 2, 2020, we issued 4,127,092 of our common shares pursuant to the Amendment, resulting in net proceeds of approximately $12.3 million.

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 immediately upon approval in the US. 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.

Cash requirements

At  December  31,  2019  we  held  an  aggregate  of  $90.8  million  in  cash,  cash  equivalents  and  investments  in  marketable  securities.  We  believe  our  cash
resources  as  of  December  31,  2019  will  be  sufficient  to  fund  our  operations  into  mid-2021.  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:

•

•
•

•
•

•

•
•
•

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  extent  to  which  we  continue  the  development  of  our  product  candidates,  add  new  product  candidates  to  our  pipeline,  or  form
collaborative relationships 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,  in  particular  for  our  HBV

therapeutics programs;

our ability to attract and retain corporate partners, and their effectiveness in carrying out the development and ultimate commercialization of
our product candidates;
whether batches of drugs that we manufacture fail to meet specifications resulting in delays and investigational and remanufacturing costs;
the decisions, and the timing of decisions, made by health regulatory agencies regarding our technology and products;
competing technological and market developments; and

58

•

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 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 products.

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.

Cash Flows

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

Net loss for the period

Items not involving cash

Net change in non-cash operating items

Net cash used in operating activities

Net cash provided by (used in) investing activities

Net cash provided by financing activities 

Effect of foreign exchange rate changes on cash and cash equivalents

Decrease in cash and cash equivalents

Cash and cash equivalents, beginning of period

Cash and cash equivalents, end of period

Year ended December 31,

2019

2018

(in thousands)

$

$

$

$

(153,723)   $

84,942  

(2,225)  

(71,006)   $

28,338  

37,457  

68  

(5,143)   $

36,942  

31,799   $

(57,060)

(6,531)

(4,275)

(67,866)

(4,127)

55,646

(1,003)

(17,350)

54,292

36,942

Net cash used in operating activities in 2019 increased $3.1 million compared to 2018 primarily due to the payment of a $5.9 million arbitration award to
UBC and a $2.3 million cash severance payment to our former CEO in 2019. These cash outflows in 2019 were partially offset by a $2.1 million decrease in
payments related to site consolidation activities and a $1.6 million decrease in cash revenues from collaborations and licenses compared to 2018.

Net cash from investing activities in 2019 increased by $32.5 million compared to 2018 primarily due to maturities of investments in marketable securities.

Net cash from financing activities in 2019 decreased $18.2 million compared to 2018. Cash provided by financing activities in 2019 primarily consisted of
$18.6 million of proceeds from sales of common shares under our Open Market Sales Agreement and $18.5 million of net proceeds from the sale a portion of
our future royalties from sales of ONPATTRO. Cash provided by financing activities in 2018 primarily consisted of $66.3 million of net proceeds from the
second tranche of the Preferred Shares financing, offset by repayment of a $12.0 million promissory note with a bank.

59

 
 
 
 
 
 
 
OFF-BALANCE SHEET ARRANGEMENTS

We do not have any off-balance sheet arrangements that have or are reasonably likely to have a current or future effect on our financial condition, changes in
financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources that are material to investors.

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.

60

 
Item 8. Financial Statements and Supplementary Data

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm

Consolidated Balance Sheets at December 31, 2019 and 2018

Consolidated Statements of Operations and Comprehensive Loss for the Years Ended December 31, 2019 and 2018

Consolidated Statements of Stockholders’ Equity for the Years Ended December 31, 2019 and 2018

Consolidated Statements of Cash Flows for the Years Ended December 31, 2019 and 2018

Notes to Consolidated Financial Statements

Page

62

65

66

67

68

69

61

 
 
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 sheet of Arbutus Biopharma Corporation (the Company) as of December 31, 2019, and the related
consolidated statements of operations and comprehensive loss, stockholders' equity, and cash flows for the year ended December 31, 2019, 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, 2019, and the results of its operations and its cash flows for the year ended December 31,
2019, in conformity with U.S. generally accepted accounting principles.

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States)  (PCAOB),  the  Company’s
internal  control  over  financial  reporting  as  of  December  31,  2019,  based  on  criteria  established  in  Internal  Control-Integrated  Framework  issued  by  the
Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  (2013  framework)  and  our  report  dated  March  5,  2020  expressed  an  unqualified
opinion thereon.

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 audit. We are a public accounting firm registered with the 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 audit 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. Our audit 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  audit  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 audit provides a reasonable basis for our opinion.

/s/ Ernst Young LLP

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

Philadelphia, Pennsylvania

March 5, 2020

62

Report of Independent Registered Public Accounting Firm

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

Opinion on Internal Control Over Financial Reporting

We have audited Arbutus Biopharma Corporation’s internal control over financial reporting as of December 31, 2019, based on criteria established in Internal
Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In
our  opinion,  Arbutus  Biopharma  Corporation  (the  Company)  maintained,  in  all  material  respects,  effective  internal  control  over  financial  reporting  as  of
December 31, 2019, based on the COSO criteria.

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States)  (PCAOB),  the  consolidated
balance sheet of the Company as of December 31, 2019, and the related consolidated statements of operations and comprehensive loss, stockholders’ equity,
and cash flows for the year ended December 31, 2019, and the related notes and our report dated March 5, 2020 expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of
internal control over financial reporting included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility
is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the
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 audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our  audit  included  obtaining  an  understanding  of  internal  control  over  financial  reporting,  assessing  the  risk  that  a  material  weakness  exists,  testing  and
evaluating  the  design  and  operating  effectiveness  of  internal  control  based  on  the  assessed  risk,  and  performing  such  other  procedures  as  we  considered
necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and
the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over
financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect
the  transactions  and  dispositions  of  the  assets  of  the  company;  (2)  provide  reasonable  assurance  that  transactions  are  recorded  as  necessary  to  permit
preparation of the financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are
being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention
or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  material  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.

/s/ Ernst Young LLP
Philadelphia, Pennsylvania
March 5, 2020

63

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors of Arbutus Biopharma Corporation

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheet of Arbutus Biopharma Corporation (the Company) as of December 31, 2018, the related
consolidated statements of operations and comprehensive loss, stockholders’ equity and cash flows for the year ended December 31, 2018, and the related
notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the
financial position of the Company as of December 31, 2018, and the results of its operations and its cash flows for the year then ended, in conformity with
U.S. generally accepted accounting principles.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these
consolidated financial statements based on our audit. We are a public accounting firm registered with the 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 audit 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 consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audit included performing
procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that
respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial
statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall
presentation of the consolidated financial statements. We believe that our audit provides a reasonable basis for our opinion.

/s/ KPMG LLP
Chartered Professional Accountants

We served as the Company’s auditor from 2002 to 2019.
Vancouver, Canada

March 7, 2019

64

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

Accounts receivable

Prepaid expenses and other assets

Total current assets

Investment in Genevant

Property and equipment, net of accumulated depreciation

Right of use asset

Intangible assets

Goodwill

Other non-current assets

Total assets  

Liabilities and stockholders' equity  

Current liabilities:

Accounts payable and accrued liabilities

Site consolidation accrual

Liability-classified options

Lease liability, current

Total current liabilities

Liability related to sale of future royalties

Deferred rent and inducements, non-current

Contingent consideration

Lease liability, non-current

Deferred tax liability

Total liabilities  

Stockholders’ equity  

 Preferred shares

Authorized: unlimited number without par value

Issued and outstanding: 1,164,000 (December 31, 2018: 1,164,000)

Common shares

Authorized: unlimited number with no par value

Issued and outstanding: 64,780,314 (December 31, 2018: 55,518,800)

Additional paid-in capital

Deficit

Accumulated other comprehensive loss

Total stockholders' equity

Total liabilities and stockholders' equity  

See accompanying notes to the consolidated financial statements.

65

December 31, 2019

  December 31, 2018

$

31,799   $

$

$

59,035  

1,204  

1,790  

93,828  

—  

8,676  

2,738  

—  

—  

293  

105,535   $

7,098   $

137  

253  

340  

7,828  

18,992  

—  

2,953  

3,018  

—  

32,791  

36,942

87,675

1,431

3,181

129,229

22,224

10,145

—

43,836

22,471

—

227,905

9,429

1,331

479

—

11,239

—

645

3,126

—

12,661

27,671

137,285  

126,136

898,535  

55,246  

(970,093)  

(48,229)  

72,744  

$

105,535   $

879,405

48,084

(805,221)

(48,170)

200,234

227,905

 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
 
 
ARBUTUS BIOPHARMA CORPORATION

Consolidated Statements of Operations and Comprehensive Loss

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

Year ended December 31,

2019

2018

Revenue

Revenue from collaborations and licenses

$

4,355   $

Non-cash royalty revenue

Total revenue

Operating expenses  

Research and development

General and administrative

Depreciation

Site consolidation

Impairment of intangible assets

Impairment of goodwill

Arbitration

Total operating expenses  

Loss from operations  

Other income (loss)  

Interest income

Interest expense

Net equity investment (loss) gain

Decrease in fair value of contingent consideration

Foreign exchange gains (losses)

Total other income (loss)

Loss before income taxes  

Income tax benefit

Net loss  

Items applicable to preferred shares

Dividend accretion of convertible preferred shares

Net loss attributable to common shares  

Net loss per common share

Basic and diluted

Weighted average number of common shares

Basic and diluted

Comprehensive income

Currency translation adjustment

Comprehensive loss  

$

$

$

$

See accompanying notes to the consolidated financial statements.

66

1,656  

6,011  

57,601  

17,727  

2,028  

156  

43,836  

22,471  

6,266  

150,085  

(144,074)  

2,111  

(2,108)  

(22,522)  

173  

41  

(22,305)  

(166,379)  

12,656  

(153,723)   $

(11,149)  

(164,872)   $

5,945

—

5,945

57,934

16,002

2,181

4,797

14,811

—

—

95,725

(89,780)

3,047

(226)

19,322

7,298

(1,003)

28,438

(61,342)

4,282

(57,060)

(10,091)

(67,151)

(2.89)   $

(1.21)

57,093,454  

55,304,083

(59)  

(153,782)   $

15

(57,045)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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

55,060,650

Share
capital
  $ 876,108   $

Additional
paid-in
capital

42,840   $

Deficit
(738,070)   $

Accumulated other
comprehensive loss

Balance at December 31, 2017
Issuance of Preferred Shares, net of
issuance cost
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
exercise of options

Currency translation adjustment

Net loss

Balance at December 31, 2018
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
our Open Market Sales Agreement
Issuance of common shares pursuant to
exercise of options

Currency translation adjustment

Net loss

  Number of shares  

Share
capital

500,000

  $

49,780

664,000

66,265

—  
—  

—  

—  
—  

10,091

—  

—  

—  
—  

—  

—  
—  

—  

458,150

—  
—  

—  

—  
—  

—  

3,297  
—  
—  

1,164,000

  $ 126,136

55,518,800

  $ 879,405   $

—  
—  

—  

—  

—  
—  
—  

11,149

—  

—  

—  

—  
—  
—  

—  
—  

—  

9,138,232

123,282

—  
—  

—  
—  

—  

18,601  

529  
—  
—  

Balance at December 31, 2019

1,164,000

  $ 137,285

64,780,314

  $ 898,535   $

—  

—  
6,687  

472  

—  

(10,091)  
—  

—  

(1,915)  
—  
—  
48,084   $

—  
—  
(57,060)  
(805,221)   $

—  
7,204  

180  

—  

(11,149)  
—  

—  

—  

(222)  
—  
—  
55,246   $

—  
—  
(153,723)  
(970,093)   $

Total
stockholders'
equity

182,473

66,265

—

6,687

472

1,382

15

(57,060)

200,234

—

7,204

180

18,601

307

(59)

(153,723)

72,744

(48,185)   $

—  

—  
—  

—  

—  
15  
—  
(48,170)   $

—  
—  

—  

—  

—  
(59)  
—  
(48,229)   $

See accompanying notes to the consolidated financial statements.

67

 
 
 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ARBUTUS BIOPHARMA CORPORATION

Consolidated Statements of Cash Flows

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

OPERATING ACTIVITIES 

Net loss for the period

Items not involving cash:

Deferred income tax benefit

Depreciation

Loss (gain) on sale of property and equipment

Stock-based compensation expense

Unrealized foreign exchange (gains) losses

Change in fair value of contingent consideration

Impairment of intangible assets

Impairment of goodwill

Site consolidation non-cash portion

Net equity investment loss (gain)

Non-cash royalty revenue

Non-cash interest expense

Net accretion and amortization of investments in marketable securities

Net change in non-cash operating items:

Accounts receivable

Accrued revenue

Investment tax credits receivable

Prepaid expenses and other assets

Accounts payable and accrued liabilities

Deferred revenue

Site consolidation accrual

Other liabilities

Net cash used in operating activities

INVESTING ACTIVITIES 

Acquisition of investments

Disposition of investments

Proceeds from sale of property and equipment

Acquisition of property and equipment

Net cash provided by (used in) investing activities

FINANCING ACTIVITIES 

Proceeds from the sale of future royalties

Promissory note repayment

Proceeds from sale of Preferred Shares, net of issuance costs

Issuance of common shares pursuant to exercise of options

Issuance of common shares pursuant to Open Market Sales Agreement

Net cash provided by financing activities 

Effect of foreign exchange rate changes on cash and cash equivalents

Decrease 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

Initial investment in Genevant

Interest paid

 See accompanying notes to the consolidated financial statements.

68

Year ended December 31,

2019

2018

$

(153,723)   $

(57,060)

(12,661)  

2,028  

20  

6,799  

(68)  

(173)  

43,836  

22,471  

—  

22,522  

(1,656)  

2,099  

(275)  

227  

—  

—  

1,606  

(2,410)  

—  

(983)  

(665)  

(71,006)  

(58,759)  

87,675  

11  

(589)  

28,338  

18,549  

—  

—  

307  

18,601  

37,457  

68  

(5,143)   $

36,942   $

31,799   $

(11,149)   $

—   $

—   $

(4,282)

2,181

(26)

6,241

1,003

(7,298)

14,811

—

396

(19,557)

—

—

—

(1,029)

128

(49)

(648)

(1,266)

(2,742)

1,331

—

(67,866)

(121,580)

118,566

25

(1,138)

(4,127)

—

(12,001)

66,265

1,382

—

55,646

(1,003)

(17,350)

54,292

36,942

(10,091)

27,377

104

$

$

$

$

$

$

 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
ARBUTUS BIOPHARMA CORPORATION

Notes to Consolidated Financial Statements

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

1.    Nature of business and future operations

Arbutus Biopharma Corporation (the “Company” or “Arbutus”) is a biopharmaceutical business dedicated to discovering developing, and commercializing a
cure for patients suffering from chronic hepatitis B infection, a disease of the liver caused by the hepatitis B virus (“HBV”). To pursue our strategy of
developing a treatment for chronic HBV, we are developing a diverse product pipeline consisting of multiple drug candidates with complementary
mechanisms of action, which have the potential to improve upon the SOC and contribute to a curative combination regimen. Our pipeline includes agents that
have the potential to form an effective proprietary combination therapy.

The Company’s pipeline includes:

•

•

•

AB-729, a subcutaneously-delivered RNA interference (“RNAi”) therapeutic product candidate currently in a Phase 1a/1b clinical trial with
preliminary results anticipated in late March 2020;

AB-836, a next-generation capsid inhibitor product candidate currently advancing through IND-enabling studies; and

other compounds early in the development process, including back-up capsid inhibitors, next-generation oral HBV RNA destabilizers and
compounds that inhibit PD-L1.

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 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.

2.    Significant accounting policies 

Basis of presentation and principles of consolidation

Tekmira  Pharmaceuticals  Corporation  (“Tekmira”)  was  incorporated  in  Canada  on  October  6,  2005  as  an  inactive  wholly-owned  subsidiary  of  Inex
Pharmaceuticals  Corporation  (“Inex”).  Pursuant  to  a  “Plan  of  Arrangement”  effective  April  30,  2007,  the  business  and  substantially  all  of  the  assets  and
liabilities of Inex were transferred to Tekmira.

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

On July 31, 2015, Tekmira changed its corporate name to Arbutus Biopharma Corporation and OnCore changed its corporate name to Arbutus Biopharma,
Inc. (“Arbutus Inc.”).

The Company has two wholly-owned subsidiaries as of December 31, 2019: Arbutus Inc. and Arbutus Biopharma US Holdings, Inc., which was formed in
2018.

Protiva  Biotherapeutics  Inc.  (“Protiva”)  was  acquired  by  the  Company  on  May  30,  2008.  On  January  1,  2018,  Protiva  was  amalgamated  with  Arbutus
Biopharma  Corporation.  The  Company’s  former  wholly-owned  subsidiary,  Protiva  Agricultural  Development  Company  Inc  (“PADCo”)  was  previously
recorded by the Company using the equity method. On March 4, 2016, Monsanto Company exercised its option to acquire 100% of the outstanding shares of
PADCo.

69

 
These  consolidated  financial  statements  include  the  accounts  of  the  Company  and  its  two  wholly-owned  subsidiaries,  in  accordance  with  U.S.  generally
accepted  accounting  principles  (“GAAP”).  All  intercompany  balances  and  transactions  have  been  eliminated.  Certain  prior  year  amounts  have  been
reclassified to conform to the current year presentation.

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.

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 areas requiring the use of management estimates relate to valuation of intangible assets and
goodwill, stock-based compensation, and the amounts recorded as accrued liabilities, contingent consideration, and income tax recovery.

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. 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, 2019, 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.

70

Equity method investment

The  Company  accounts  for  its  investment  in  Genevant  Sciences  Ltd.  (“Genevant”)  in  accordance  with  Financial  Accounting  Standards  Board  (“FASB”)
Accounting  Standards  Codification  (“ASC”)  323,  Investments - Equity Method and Joint Ventures (“ASC 323”). In  accordance  with  ASC  323,  associated
companies are accounted for as equity method investments if the Company can exercise significant influence over the associated companies. Investments in
and advances to Genevant are presented on a one-line basis in the caption “Investment in Genevant” in the Company’s consolidated balance sheets, net of
allowance  for  losses,  which  represents  the  Company’s  best  estimate  of  probable  losses  inherent  in  such  assets.  The  Company’s  proportionate  share  of
Genevant’s  net  income  or  loss  is  presented  along  with  any  other  gains  or  losses  associated  with  the  investment  on  a  one-line  basis  in  the  Company’s
consolidated  statement  of  operations.  Transactions  between  the  Company  and  any  associated  companies  are  eliminated  on  a  basis  proportional  to  the
Company’s ownership interest. The Company’s proportionate share of Genevant’s financial results are recorded on a one-quarter lag basis.

As  of  December  31,  2019,  recovery  of  the  Company’s  remaining  carrying  value  in  Genevant  was  uncertain,  and  therefore  the  Company  recorded  a  $7.6
million impairment expense to reduce the carrying value of its investment in Genevant to zero.

Property and equipment

Property  and  equipment  is  recorded  at  cost  less  impairment  losses,  accumulated  depreciation,  related  government  grants  and  investment  tax  credits.  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

2

5

to

5

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.

Goodwill and intangible assets

The balances related to acquired in-process research and development (“IPR&D”) intangible assets related to the Company’s covalently closed circular DNA
(“cccDNA”)  program.  During  2019,  the  Company  recorded  a  $43.8  million  non-cash  impairment  expense  to  reduce  the  carrying  value  of  its  IPR&D
intangible assets to zero. The Company also recognized a corresponding income tax benefit of $12.7 million related to the decrease in its deferred tax liability
related  to  the  IPR&D  intangible  assets.  The  impairment  was  due  to  a  decision  to  delay  indefinitely  the  further  development  of  the  Company’s  cccDNA
program while the Company focuses on its other development programs.

The Company’s goodwill balance represented the excess of purchase price over the value assigned to the net tangible and identifiable intangible assets in
connection with the business combination that formed Arbutus. During 2019, the Company assessed its changes in circumstances to determine if it was more
likely than not that the fair value of its single reporting unit was below its carrying amount. Due to a sustained decrease in the Company’s share price in recent
months, the Company’s market capitalization was reduced below the book value of its net assets and the Company concluded that the fair value of its single
reporting  unit  was  below  its  carrying  amount  by  an  amount  in  excess  of  the  carrying  value  of  the  goodwill.  As  a  result,  the  Company  recorded  a  $22.5
million non-cash impairment expense to reduce the carrying value of its goodwill asset to zero.

71

 
 
 
 
The costs incurred in establishing and maintaining patents for intellectual property developed internally are expensed in the period incurred.

Revenue recognition

ASC 606, Revenue From Contracts with Customers (“ASC 606”) became effective for the Company on January 1, 2018, and was adopted using the modified
retrospective method under which previously presented financial statements are not restated and the cumulative effect of adopting ASC 606 on contracts in
process  is  recognized  by  an  adjustment  to  retained  earnings  at  the  effective  date.  The  adoption  of  ASC  606  did  not  change  recognized  revenue  under  the
Company’s ongoing significant collaboration and license agreements and no cumulative effect adjustment was required.

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.

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 and development services. Under such agreements, the Company
is generally eligible to receive non-refundable upfront payments, funding for research and development services, milestone payments, and royalties.

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 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

As of January 1, 2019, the Company adopted FASB’s Accounting Standards Update 2016-02, Leases (ASC 842), which generally requires the recognition of
operating  and  financing  lease  liabilities  with  corresponding  right-of-use  assets  on  the  balance  sheet.  The  Company  adopted  the  new  standard  using  the
modified retrospective basis applied at the effective date of the new standard and elected to utilize a package of practical expedients. See note 6  for  more
information.

Research and development costs

Research and development costs, including acquired in-process research and development expenses for which there is no alternative future use, are charged as
an expense in the period in which they are incurred.

Net loss attributable to common shareholders per share

The Company follows the two-class method when computing net loss attributable to common shareholders per share as the Company has issued Series A
participating  convertible  preferred  shares  (“Preferred  Shares”),  as  further  described  in  note  15,  that  meet  the  definition  of  participating  securities.  The
Company’s Preferred Shares entitle the holders to participate in dividends but do not

72

  
require the holders to participate in losses of the Company. Accordingly, if the Company reports a net loss attributable to holders of the Company’s common
shares, net losses are not allocated to holders of the Preferred Shares.

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, 2019 and 2018, since the effect of the Company’s stock options is anti-dilutive. For the year ended December 31, 2019, potential common shares of 8.9
million pertaining to stock options outstanding and approximately 19.4 million pertaining to if-converted preferred shares for a total of approximately 28.4
million shares were excluded from the calculation of net loss attributable to common shareholders, per share because their inclusion would be anti-dilutive. A
total  of  approximately  24.7  million  potential  common  shares  and  if-converted  preferred  shares  were  excluded  from  the  calculation  for  the  year  ended
December 31, 2018.

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

For the year ended December 31,

2019

2018

(in thousands, except share and per share amounts)

$

$

$

—   $

(164,872)  

(164,872)   $

—

(67,151)

(67,151)

57,093,454  

(2.89)   $

55,304,083

(1.21)

In December 2018, the Company entered into an Open Market Sale Agreement (“2018 Sale Agreement”) with Jefferies LLC

(“Jefferies”),  under  which  it  may  issue  and  sell  common  shares.  In  2020,  through  March  2,  2020,  we  issued  4,127,092  common  shares  pursuant  to  the
amendment to the Sale Agreement.

Government grants and refundable investment tax credits

Government  grants  and  tax  credits  provided  for  current  expenses  are  included  in  the  determination  of  income  or  loss  for  the  year,  as  a  reduction  of  the
expenses to which they relate.

Deferred income taxes

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.

Equity-classified stock option awards

The Company grants stock options to employees, directors and consultants pursuant to share incentive plans described in note 16. Compensation expense is
recorded for issued stock options using the fair value method with a corresponding increase in additional paid-in capital. Any consideration received on the
exercise of stock options is credited to share capital.

The fair value of equity classified stock options is measured at the grant date and is amortized on a straight-line basis over the vesting period.

73

 
 
 
 
 
 
   
 
 
 
 
 
Liability-classified stock option awards

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.

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  accounts  for  Preferred  Shares  under  ASC  480  –  Distinguishing  Liabilities  from  Equity  (“ASC  480”),  which  provides  guidance  for  equity
instruments  with  conversion  features.  The  Company  classifies  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  cannot  be  cash-settled  and  the  redemption  features,  which  include  a  fixed
conversion ratio with predetermined timing and proceeds, are within the Company’s control. The Company accrues 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.

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.

74

 
Recent accounting pronouncements

In November 2018, the FASB issued ASU No. 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction Between Topic 808 and Topic
606.  The ASU provides more comparability in the presentation of revenue for certain transactions between collaborative arrangement participants and only
allows  a  company  to  present  units  of  account  in  collaborative  arrangements  that  are  within  the  scope  of  the  revenue  recognition  standard  together  with
revenue accounted for under the revenue recognition standard. The parts of the collaborative arrangement that are not in the scope of the revenue recognition
standard  should  be  presented  separately  from  revenue  accounted  for  under  the  revenue  recognition  standard.    The  amendments  in  ASU  No.  2018-18  are
effective  for  fiscal  years  beginning  after  December  15,  2019,  and  interim  periods  within  those  fiscal  years.    The  Company  evaluated  the  impact  of  this
pronouncement and concluded that the guidance does not have a material impact on its financial position and results of operations.

In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements
for Fair Value Measurement, which removes, adds and modifies certain disclosure requirements for fair value measurements in Topic 820. The Company will
no longer be required to disclose the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, and the valuation processes
of Level 3 fair value measurements. However, the Company will be required to additionally disclose the changes in unrealized gains and losses included in
other comprehensive income for recurring Level 3 fair value measurements, and the range and weighted average of assumptions used to develop significant
unobservable inputs for Level 3 fair value measurements. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after
December 15, 2019.  The amendments relating to additional disclosure requirements will be applied prospectively for only the most recent interim or annual
period presented in the initial year of adoption. All other amendments will be applied retrospectively to all periods presented upon their effective date. The
Company  is  permitted  to  early  adopt  either  the  entire  ASU  or  only  the  provisions  that  eliminate  or  modify  the  requirements. The  Company  evaluated  the
impact of this pronouncement and concluded that the guidance does not have a material impact on its financial position and results of operations.

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  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,  investments  in  marketable  securities,  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 13), 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

75

 
program, time to complete the program development, and overall biotech indices. The Company determined the fair value of the contingent consideration was
$3.0 million as of December 31, 2019 and the decrease of $0.2 million has been recorded in other losses in the statement of operations and comprehensive
loss  for  the  year  ended  December  31,  2019.  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, 2019

Assets
Cash and cash equivalents

Investments in marketable securities

Total

Liabilities
Liability-classified options

Contingent consideration

Total

As of December 31, 2018

Assets
Cash and cash equivalents

Investments in marketable securities

Total

Liabilities
Liability-classified options

Contingent consideration

Total

$

$

$

$

$

$

$

$

Level 1

Level 2

Level 3

Total

31,799  

59,035  

90,834   $

—   $

—  

—   $

(in thousands)

—  

—  

—   $

—   $

—  

—   $

—   $

—  

—   $

253   $

2,953  

3,206   $

31,799

59,035

90,834

253

2,953

3,206

Level 1

Level 2

Level 3

Total

(in thousands)

—  

—  

—   $

—   $

—  

—   $

—   $

—  

—   $

479   $

3,126  

3,605   $

36,942

87,675

124,617

479

3,126

3,605

36,942  

87,675  

124,617   $

—   $

—  

—   $

76

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

Year ended December 31, 2019

Year ended December 31, 2018

$

$

479   $

1,239   $

(in thousands)
—   $

(93)   $

(226)   $

(667)   $

253

479

Liability at beginning of
the period

Fair value of liability-classified
options exercised in the period

Increase (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:

Liability at beginning of the period  

Increase (decrease) in fair value of
liability

Liability at end of the period

Year ended December 31, 2019

Year ended December 31, 2018

$

$

3,126   $

10,424   $

(in thousands)

(173)   $

(7,298)   $

4.    Investments in marketable securities 

Investments in marketable securities consisted of the following:

As of December 31, 2019

Cash equivalents

Money market fund

US government agency bonds

US treasury bills

Total

Investments in marketable securities
US government agency bonds

US treasury bills

US government bonds

Total

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

As of December 31, 2018

Cash equivalents

Individual savings account

Total

Investments in marketable securities

Canadian guaranteed investment
certificates

USD term deposit

Total

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

$

$

$

$

$

$

$

$

Amortized Cost

Gross Unrealized Gain(1)

Gross Unrealized Loss(1)

Fair Value

4,106   $

1,511  

1,499  

7,116   $

19,863   $

15,926  

23,246  

59,035   $

(in thousands)

—   $

—  

—  

—   $

2   $

2   $

—  

4   $

—   $

—  

—  

—   $

(1)   $

(1)  

(2)  

(4)   $

Amortized Cost

Gross Unrealized Gain(1)

Gross Unrealized Loss(1)

Fair Value

(in thousands)

—   $

—   $

—   $

—   $

—   $

—   $

—   $

—   $

—   $

—   $

20,420   $

20,420   $

71,483   $

16,192  

87,675   $

77

2,953

3,126

4,106

1,511

1,499

7,116

19,864

15,927

23,244

59,035

20,420

20,420

71,483

16,192

87,675

 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
   
   
   
 
 
 
 
 
   
   
   
 
   
   
   
The contractual term to maturity of short-term marketable securities held by the Company as of December 31, 2019 is less than one year. There were no long-
term marketable securities held by the Company as of December 31, 2019.

There were no realized gains or losses for the year ended December 31, 2019 or 2018.

5.    Equity method investment

In April 2018, the Company entered into an agreement (the “Genevant Agreement”) with Roivant Sciences Ltd. (“Roivant”), its largest shareholder, to launch
Genevant, a company focused on the discovery, development and commercialization of a broad range of RNA-based therapeutics enabled by the Company’s
lipid nanoparticle (“LNP”) and ligand conjugate delivery technologies. Genevant plans to develop products in-house and pursue industry partnerships to build
a diverse pipeline of therapeutics across multiple modalities, including RNAi, mRNA and gene editing.

Under  the  terms  of  the  Genevant  Agreement,  the  Company  contributed  fixed  assets  with  a  carrying  value  of  $0.6 million  and  a  license  for  the  delivery
technologies.  The  contributed  license  provides  Genevant  with  exclusive  rights  to  the  LNP  and  ligand  conjugate  delivery  platforms  for  RNA-based
applications outside of HBV and any other pre-existing licensing obligations of Arbutus. The Company retains all rights to the LNP and ligand conjugate
delivery platforms for HBV, and is entitled to a tiered low single-digit royalty from Genevant on future sales of products enabled by those delivery platforms.
The Company also retained the entirety of its royalty entitlement on the commercialization of Alnylam Pharmaceuticals, Inc.’s (“Alnylam”) ONPATTRO™
(Patisiran) (“ONPATTRO”). Roivant contributed $37.5 million in transaction-related seed capital to Genevant, consisting of an initial capital contribution in
April 2018 of $22.5 million and a subsequent investment in June 2018 of $15.0 million at a pre-determined, stepped-up valuation, as contemplated in the
initial agreement. As a result of this subsequent investment in Genevant by Roivant and other parties, the Company’s initial ownership interest in Genevant
was reduced from 50% to approximately 40%. As of December 31, 2019, the Company’s ownership interest in Genevant remained approximately 40%.

The Company’s contribution of licenses related to the delivery technologies and fixed assets in exchange for an equity interest in Genevant resulted in a gain
for the Company of $24.9 million during the second quarter of 2018. The gain reflected the fair value of the equity in Genevant received by the Company,
less the $0.6 million carrying value of the fixed assets contributed by the Company and less $1.9 million of goodwill allocated to Genevant based upon the
relative fair value of Genevant to the Company as of the transaction date.  The fair value of equity in Genevant received by the Company was based on a
valuation performed by external valuation specialists. The basis difference between the Company’s carrying value in Genevant and the Company’s share of
Genevant’s net assets is attributed primarily to indefinite-lived IPR&D (the delivery technology transferred to Genevant).

The Company has significant influence over Genevant due to its ownership interest and accounts for its investment in Genevant using the equity method.  The
Company’s proportionate share of Genevant’s financial results are recorded on a one-quarter lag basis.

The Company recorded non-cash equity losses of $22.5 million for the year ended December 31, 2019 and non-cash equity gains of $19.6 million for the year
ended December 31, 2018. Equity losses for 2019 included $14.9 million of losses for the Company’s proportionate share of Genevant’s net losses and a $7.6
million  impairment  charge  to  reduce  the  carrying  value  of  the  Company’s  investment  in  Genevant  to  zero.  The  impairment  was  due  to  uncertainty
surrounding the recovery of the Company’s remaining carrying value in Genevant. Equity gains for 2018 included the $24.9 million gain on the Company’s
contribution of delivery technology licenses upon formation of Genevant, partially offset by $5.6 million of losses for the Company’s proportionate share of
Genevant’s net loss for the partial year.

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,

78

 
 
Pennsylvania under a lease that expires on December 31, 2021, and the Company has an option to extend the lease term to April 30, 2027. In connection with
the Company’s site consolidation in 2018, the Company ceased using its office and laboratory space located in Burnaby, British Columbia, Canada on June
30, 2018. The Company subleased a portion of the Burnaby facility to various tenants, including Genevant, until the lease expired on July 31, 2019. The
Company recognized the remaining lease payments for the Burnaby facility, less sublease income under contract, in site consolidation expenses in 2018. The
Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants.

The Company adopted ASU No. 2016-02, Leases (Topic 842) on January 1, 2019 using the modified retrospective basis applied at the effective date of the
new standard and elected to utilize a package of practical expedients. 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, 7.6%  for  the  626  Jacksonville  Rd.  lease  and  5.0%  for  the  Burnaby  lease.  The  Company  recognizes  lease  expense  on  a  straight-line  basis  over  the
remaining lease term.

During the year ended December 31, 2019, the Company incurred total operating lease expenses of $1.2 million, which included lease expenses associated
with fixed lease payments of $0.9 million, and variable payments associated with common area maintenance and similar expenses of $0.3 million. For the
twelve  months  ended  December  31,  2018,  the  straight-line  fixed  expense  for  leases  was  $1.4  million.  Sublease  income  for  the  twelve  months  ended
December 31, 2019 was $0.2 million, versus $0.2 million for the twelve months ended December 31, 2018.

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, 2019
7.0

8.9%

Cash paid for amounts included in the measurement of lease liabilities

2019

2018

$

(in thousands)

1,116   $

—

79

 
 
 
 
 
Future minimum lease payments under operating leases that have remaining terms as of December 31, 2019 are as follows:

2020

2021

2022

2023

2024

Thereafter

Total Lease Payments

Less: interest

Present value of lease payments

7.    Property and equipment

As of December 31, 2019

(in thousands)

657

677

581

598

616

1,423

4,552

(1,193)

3,359

$

$

$

The Company’s property and equipment balances as of the years ended December 31, 2019 and 2018 are as follows:

December 31, 2019
Lab equipment

Leasehold improvements

Computer hardware and software

December 31, 2018
Lab equipment

Leasehold improvements

Computer hardware and software

Cost

Cost

Accumulated
depreciation

(in thousands)

Net book value

5,511   $

8,521  

286  

14,318   $

(3,316)   $

(2,152)  

(174)  

(5,642)   $

2,195

6,369

112

8,676

Accumulated
depreciation

(in thousands)

Net book value

5,420   $

9,308  

2,313  

17,041   $

(2,455)   $

(2,401)  

(2,040)  

(6,896)   $

2,965

6,907

273

10,145

$

$

$

$

During 2019, the Company closed its Burnaby facility and the lease expired according to its terms on July 31, 2019. In connection with the facility closure,
the  Company  disposed  of  $3.4  million  of  equipment,  furniture  and  leasehold  improvements.  Most  of  the  disposed  assets  were  fully  depreciated.  The
aggregate net book value of the disposed assets was less than $0.1 million.

8.    Intangible assets and goodwill

All IPR&D intangible asset balance related to the Company’s cccDNA program. During 2019, the Company recorded a $43.8 million non-cash impairment
expense  to  reduce  the  carrying  value  of  its  IPR&D  intangible  assets  to  zero.  The  Company  also  recognized  a  corresponding  income  tax  benefit  of  $12.7
million related to the decrease in its deferred tax liability related to the IPR&D intangible assets. The impairment was due to a decision to delay indefinitely
the further development of the Company’s cccDNA program while the Company focuses on its other development programs.

80

 
 
                                                                                                                                                                        
 
 
 
 
 
 
 
 
In 2018, the Company recorded a $14.8 million intangible assets impairment charge, and a corresponding income tax benefit of $4.3 million related to the
decrease in deferred tax liability, for the indefinite delay of further development of its AB-423 program.

The Company’s goodwill balance represented the excess of purchase price over the value assigned to the net tangible and identifiable intangible assets in
connection with the business combination that formed Arbutus. During 2019, the Company assessed its changes in circumstances to determine if it was more
likely than not that the fair value of its single reporting unit was below its carrying amount. Due to a sustained decrease in the Company’s share price in recent
months, the Company’s market capitalization was reduced below the book value of its net assets and the Company concluded that the fair value of its single
reporting  unit  was  below  its  carrying  amount  in  excess  of  the  carrying  value  of  goodwill.  As  a  result,  the  Company  recorded  a  $22.5  million  non-cash
impairment expense to reduce the carrying value of its goodwill asset to zero.

9.    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

Other accrued liabilities

Total

10.     Site consolidation

December 31, 2019

December 31, 2018

(in thousands)

2,398   $

2,314  

1,433  

809  

144  

7,098   $

3,192

2,341

2,716

871

309

9,429

$

$

In 2018, the Company substantially completed a site consolidation and organizational restructuring to align its HBV business in Warminster, PA, including a
reduction of its global workforce and closure of its Burnaby facility. The Company estimates that the total expenses to complete the site consolidation will be
approximately $5.0 million, of which $4.9 million has been incurred as of December 31, 2019. Included in the site consolidation plan was the payment of
one-time employee termination benefits, employee relocation costs, and site closure costs. The Company ceased the use of its Burnaby facility as of June
2018 and the Company entered into subleases with various tenants, including Genevant, for a portion of the Burnaby facility. The Company recorded the
remaining committed cost, less sublease income under contract, in site consolidation expenses in 2018. The lease of the Burnaby facility expired on July 31,
2019.

The Company accounts for site consolidation expense in accordance with ASC 420, Exit or Disposal Cost Obligations (“ASC 420”). ASC 420 specifies that
a liability for a cost associated with an exit or disposal activity be recognized when the liability is incurred, except for a liability where employees are required
to render service until they are terminated in order to receive termination benefits and will be retained to render service beyond the minimum retention period.
A  liability  for  such  one-time  termination  benefits  shall  be  measured  initially  at  the  communication  date  based  on  the  fair  value  of  the  liability  as  of  the
termination date and recognized ratably over the future service period.

81

 
 
 
 
 
The following table shows the changes to the site consolidation accrual for the twelve months ended December 31, 2019:

Accrual Balance December 31, 2018

Employee severance and relocation expense

Lease and facility expense

Total site consolidation expense

Amounts paid and adjustments

Accrual Balance December 31, 2019

11.     Loan payable

For the Twelve Months Ended December 31,
2019

(in thousands)

$

$

$

1,331

510

(347)

163

(1,357)

137

During 2018, the Company had a bank loan of $12.0 million in the form of a promissory note for the purpose of financing its operations and expanding its
laboratory facilities in the United States. The  loan  accrued  interest  daily  at  a  rate  of  one-month  London  Interbank  Offered  Rate  (LIBOR)  plus  1.25% per
annum. The maturity date of the loan was December 27, 2019. The loan was secured by the Company’s cash of $12.6 million and was restricted from use
until  the  loan  was  settled  in  full.  The  Company  invested  the  restricted  cash  in  a  two-year  fixed  certificate  of  deposit  with  a  bank  and  was  presented  as
restricted investment in the Company’s balance sheet for the period ended December 31, 2017. In March 2018, the Company repaid the loan and accrued
interest in full, resulting in the release of $12.6 million from restricted cash to investments in marketable securities on the Company’s condensed consolidated
balance sheet.

12.

Sale of future royalties

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.

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  22%.  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

82

 
 
 
 
 
 
Agreement. 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, 2019, the Company recognized non-cash royalty revenue of $1.7 million and $2.1 million of related non-cash interest
expense.

The table below shows the activity related to the net liability from inception of the Agreement through December 31, 2019:

Net liability related to sale of future royalties - beginning balance

Initial recognition of liability

Debt discount and issuance costs

Non-cash interest expense

Net debt discount and issuance costs

Non-cash royalty revenue

Net liability related to sale of future royalties - ending balance

Twelve Months Ended December 31,
2019

(in thousands)

$

$

—

30,000

(11,451)

2,099

(9,352)

(1,656)

18,992

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.

13.    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.
For  the  years  ended  December  31,  2019  and  2018,  the  Company  earned  royalties  on  Marqibo  sales  in  the  amounts  of  $0.3  million  and  $0.2  million,
respectively.  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, 2019 was less than $0.1 million, resulting in the contingent amount due to TPC being $2.7 million (C$3.7 million).

83

 
 
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
us 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 and in January 2015, filed a Statement of Claim, which alleged entitlement to $3.5
million in allegedly unpaid royalties based on publicly available information, and an unspecified amount based on non-public information. UBC also sought
interest and costs, including legal fees. The Company filed its Statement of Defense to UBC’s Statement of Claims, as well as a Counterclaim involving a
patent application that the Company alleged UBC wrongly licensed to a third party. The proceedings were divided into three phases, with the first hearing
taking  place  in  June  2017.  In  the  first  phase,  the  arbitrator  determined  which  agreements  are  sublicense  agreements  within  UBC’s  claim.  Also  in  the  first
phase, UBC updated its alleged entitlement from $3.5 million originally claimed to seek $10.9 million in alleged unpaid royalties, plus interest arising from
payments as early as 2008. The arbitrator also held in the first phase of the arbitration that the patent application that is the subject of the Counterclaim was
not required to be licensed to Arbutus.  The second phase of arbitration took place in the second quarter of 2019. In August 2019, the arbitrator issued his
decision for the second phase of the arbitration, awarding UBC $5.9 million, which includes interest of approximately$2.6 million. The Company paid the
$5.9 million award to UBC in September 2019. The arbitrator also held that the third phase of the arbitration, which would address patent validity, should the
Company choose to pursue a third phase, would not provide a defense to the award. An award for costs and attorneys’ fees is still to be determined.

The  Company  recorded  a  charge  of  $6.3 million  in  2019  consisting  $5.9 million  for  the  award  (including  interest)  and  $0.4  million  for  an  estimate  of  a
potential award for costs and attorneys’ fees.

License Agreements between Enantigen

In October 2014, Arbutus Inc. acquired all of the outstanding shares of Enantigen Therapeutics, Inc. (“Enantigen”) pursuant to a stock purchase agreement.
Through this transaction, Arbutus Inc. acquired a HBV surface antigen secretion inhibitor program and a capsid assembly inhibitor program.

Under the stock purchase agreement, Arbutus Inc. agreed to pay up to a total of $21.0 million to Enantigen’s selling stockholders upon the achievement of
specified development and regulatory milestones for (a) the first two products that contain either a capsid compound or an HBV surface antigen compound
that is covered by a patent acquired under this agreement, or (b) a capsid compound from an agreed-upon list of compounds. The development milestones are
tied to programs which are no longer under development by us, and therefore the contingency related to these milestones has been reduced to zero.

An  additional  $102.5 million  may  also  be  paid  to  Enantigen’s  selling  stockholders  related  to  the  achievement  of  certain  sales  performance  milestones  in
connection with the sale of the first commercialized product by Arbutus Inc. 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 Inc.’s milestone payment obligations.

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 $3.0 million as of December 31, 2019.

84

 
 
14.    Collaborations, contracts and licensing agreements

Alnylam Pharmaceuticals, Inc.

In 2012, the Company entered into a license agreement with Alnylam that entitles Alnylam to develop and commercialize products with the Company’s LNP
technology.  During the third quarter of 2018, Alnylam’s ONPATTRO, which utilizes the Company’s LNP technology, was approved by the U.S. Food and
Drug Administration (“FDA”) and the European Medicines Agency. The Company is entitled to tiered low to mid single-digit royalty payments on global net
sales of ONPATTRO and received its first royalty payment in the fourth quarter of 2018. In July 2019, the Company sold a portion of its royalty entitlement
for Alnylam’s ONPATTRO to OMERS. See note 12 for further details.

The Company recognized $1.7 million of non-cash revenue and $0.2 million of cash revenue based on global net sales of Alnylam’s ONPATTRO for the year
ended December 31, 2019 and 2018, respectively.

Acuitas Therapeutics, Inc.

The  Company  has  rights  to  a  second  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 us and was not part of the royalty entitlement sale to OMERS.

The Company recognized $1.9 million and $1.0 million of revenue from Acuitas based on global net sales of Alnylam’s ONPATTRO for the years ended
December 31, 2019 and 2018, respectively.

Gritstone Oncology, Inc.

On October 16, 2017, the Company entered into a license agreement with Gritstone Oncology, Inc. (“Gritstone”) that entitles Gritstone to research, develop,
manufacture  and  commercialize  products  with  the  Company’s  LNP  technology.    The  Company  received  an  upfront  payment  in  November  2017,  and  is
eligible  to  receive  future  potential  payments  including  development  and  commercial  milestone  payments,  royalty  payments  on  future  product  sales  and
payments for research services provided. 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. In  2018,  Gritstone  paid  a  development  milestone  payment  of  $2.5 million  pursuant  to  the  license  agreement  and  the  Company  recorded  related
revenue, net of the portion paid to Genevant, of $1.3 million.

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 recognized $1.8 million and $4.3 million of revenue from Gritstone for the years ended December 31, 2019 and 2018, respectively.

Acrotech Biopharma LLC and Spectrum Pharmaceuticals, Inc.

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

In  2012,  Talon  had  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 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

85

 
  
sold the license of Marqibo to Acrotech Biopharma LLC in January 2019. The acquisitions and license sale did not affect the terms of the license between
Talon and the Company.

The Company recognized $0.6 million and $0.2 million of revenue related to sales of Marqibo for the years ended December 31, 2019 and 2018, respectively.

15.    Shareholders’ equity

Authorized share capital

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

In December 2018, the Company entered into the 2018 Sale Agreement with Jefferies, under which it may issue and sell common shares, from time to time,
for an aggregate sales price of up to $50.0 million. For the twelve months ended December 31, 2019, the Company issued 9,138,232 common shares pursuant
to  the  Sale  Agreement,  resulting  in  gross  proceeds  of  approximately  $19.5  million.  There  were  no  shares  issued  during  the  twelve  months  ended
December 31, 2018 under the Sale Agreement.

In December 2019, the Company entered into an amendment to the Sale Agreement with Jefferies in connection with filing a new shelf registration statement
on Form S-3 (File No. 333-235674), filed with the SEC on December 23, 2019 (the “New Shelf Registration Statement”). The Amendment revised the Sale
Agreement to reflect that we may sell our common shares, without par value, from time to time for an aggregate sales price of up to $50.0 million, under the
New Shelf Registration Statement. In 2020, through March 2, 2020, we issued 4,127,092 common shares pursuant to the amendment to the Sale Agreement,
resulting in net proceeds of approximately $12.3 million.

Series A Preferred Shares

On October 2, 2017, the Company announced that it 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  are  non-voting  and  are  convertible  into  common  shares  at  a  conversion  price  of  $7.13 per share (which
represents 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, will be subject to mandatory conversion into common shares on October 18, 2021 (subject to limited exceptions in the event of certain
fundamental  corporate  transactions  relating  to  Arbutus’  capital  structure  or  assets,  which  would  permit  earlier  conversion  at  Roivant’s  option).  Assuming
conversion of the Preferred Shares into common shares, based on the number of common shares outstanding on December 31, 2019 Roivant would hold 42%
of the Company’s common shares. Roivant has agreed to a four year lock-up period for this investment and its existing holdings in Arbutus. Roivant has also
agreed to a four year standstill whereby Roivant will not acquire greater than 49.99% of the Company’s common shares or securities convertible into common
shares.

The  initial  investment  of  $50.0  million  closed  on  October  16,  2017,  and  the  remaining  amount  of  $66.4  million  closed  on  January  12,  2018  following
regulatory and shareholder approvals.

The Company records the Preferred Shares wholly as equity under ASC 480, with no bifurcation of conversion feature from the host contract, given that the
Preferred  Shares  cannot  be  cash  settled  and  the  redemption  features  are  within  the  Company’s  control,  which  include  a  fixed  conversion  ratio  with
predetermined timing and proceeds. The Company accrues 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).

86

 
16.    Stock-based compensation

Awards outstanding and available for issuance

During the year ended December 31, 2019, the Company had stock options outstanding under the following plans: the 2016 Omnibus Share and Incentive
Plan  (the  “2016  Plan”),  the  2011  Omnibus  Share  Compensation  Plan  (the  “2011  Plan”),  the  2013  designated  plans  (the  “Designated  Plans”),  the  2019
inducement grant and the OnCore Option Plan.

As of December 31, 2019, the aggregate number of shares authorized for awards under all Plans was 12,790,202. As of December 31, 2019, the Company had
8,576,584 options outstanding and a further 2,424,703 awards available for issuance. 

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

Under the 2016 and 2011 Plans, 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 or the prior day and the term may not exceed 10 years.  Options granted generally vest over three or four years for
employees and for directors’ initial grants, and immediately for directors’ annual grants.

Additionally,  the  Company  granted  a  total  of  200,000  options  in  2013  to  two  executive  officers  in  conjunction  with  their  new  appointments  as  executive
officers. These options were granted in accordance with the policies of the Toronto Stock Exchange and pursuant to newly designated share compensation
plans (the “Designated Plans”). The Designated Plans are governed by substantially the same terms as the 2011 Plan. No new options can be granted under
the Designated Plans. There were 150,000 options outstanding for one of the Company’s former executive officers as of December 31, 2018, all of which
expired unexercised in February 2019.

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, the 2007 Plan, the Designated Plans 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.

87

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 for the year ended December 31, 2019:

Stock Options Outstanding

  Vested Stock Options  

Non-Vested Stock Options

Number

Weighted-Average
Exercise Price

Number

Number

Balance as of December 31, 2018

Options granted

Options exercised

Options forfeit, canceled or expired

Options vested

Balance as of December 31, 2019

6,331,088   $

3,018,000   $

(83,000)   $

(1,016,995)   $

—   $

8,249,093   $

6.05  

3.41  

3.25  

6.98  

—  

5.00  

Weighted-Average
Grant-Date Fair Value
3.39

2,620,542  

3,710,546   $

—  

3,018,000   $

(83,000)  

(477,848)  

2,234,955  

4,294,649  

—   $

(539,147)   $

(2,234,955)   $

3,954,444   $

2.43

—

3.24

3.10

2.86

The intrinsic value of options exercised under the Arbutus plans during 2019 and 2018 are less than $0.1 million and $1.1 million, respectively.

The following table summarizes additional information related to the Company’s equity-classified stock options as of December 31, 2019:

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

As of December 31, 2019

8,249,093

5

1,001

6.9 years

4,294,649

5.85

189

5.0 years

$

$

$

$

On March 3, 2015, the Company voluntarily de-listed from the Toronto Stock Exchange. All stock options granted after March 3, 2015 were denominated in
US dollars based on the Company’s stock price on the Nasdaq Global Select Market. The methodology and assumptions used to estimate the fair value of
stock options at date of grant under the Black-Scholes option-pricing model remain unchanged. 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.  Assumptions  about  the  Company’s  expected  stock-price
volatility  are  based  on  the  historical  volatility  of  the  Company’s  publicly  traded  stock.  The  risk-free  interest  rate  used  for  each  grant  is  equal  to  the  zero
coupon rate for instruments with a similar expected life. Expected life assumptions are based on the Company’s historical data.

88

 
 
 
 
 
 
 
 
 
The assumptions used in the Black-Scholes option-pricing for grants made during the years ended December 31, 2019 and 2018 are as follows:

Expected average option term

Expected volatility

Expected dividends

Risk-free interest rate

Liability-classified stock options under the Arbutus Plans

December 31, 2019

December 31, 2018

7.3 years

6.7 years

75.9%  

—%  

2.27%  

75.2%

—%

2.81%

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, 2019:

Balance as of December 31, 2018

Options exercised

Options forfeit, canceled or expired

Balance as of December 31, 2019

Stock Options Vested and Outstanding

Number

Weighted-Average Exercise Price

377,500   $

—   $

(150,000)   $

227,500   $

5.81

—

7.01

5.49

There were no exercises of liability-classified stock options during 2019. The intrinsic value of liability-classified options exercised during 2018  was  $0.1
million.

The following table summarizes additional information related to the Company’s liability-classified stock options as of December 31, 2019:

Options outstanding and expected to vest

Intrinsic value (in $000s)

Weighted-average term remaining

As of December 31, 2019

$

96

1.6 years

Liability  options  are  re-measured  to  their  fair  values  at  each  reporting  date,  using  the  Black-Scholes  valuation  model.  The methodology and assumptions
prevailing at the re-measurement date used to estimate the fair values of liability options remain unchanged from the date of grant of equity classified stock
option awards. Assumptions about the Company’s expected stock-price volatility are based on the historical volatility of the Company’s publicly traded stock.
The risk-free interest rate used for each grant is equal to the zero coupon rate for instruments with a similar expected life. Expected life assumptions are based
on the Company’s historical data.

89

 
 
 
 
 
 
 
The weighted average Black-Scholes option-pricing assumptions and the resultant fair values as of December 31, 2019 and December 31, 2018, are presented
in the following table:

Stock price

Expected average option term

Expected volatility

Expected dividends

Risk-free interest rate

Weighted-average fair value per share

Total fair value of vested liability-classified options (in $000s)

OnCore Option Plan

December 31, 2019

December 31, 2018

$

$

$

2.78

  $

1.6 years

113.1%  

—%  

1.59%  

1.11

253

  $

  $

3.83

2.2 years

75.2%

—%

2.48%

1.27

479

As  of  the  acquisition  date  in  March  2015,  the  Company  reserved  184,332  shares  for  the  future  exercise  of  OnCore  stock  options.  The  total  fair  value  of
OnCore stock options at the date of acquisition was $3.3 million, using the Black-Scholes pricing model with an assumed risk-free interest rate of 0.97%,
volatility of 78%, a zero dividend yield and an expected life of 8.0 years, which are consistent with the assumption inputs used by the Company to determine
the  fair  value  of  its  options.  Of  the  total  fair  value,  $1.1  million  was  attributed  as  pre-combination  service  and  included  as  part  of  the  total  acquisition
consideration. The post-combination attribution of $2.2 million was recognized as compensation expense over the vesting period of the stock options through
December 2018.

Following the merger, 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, 2019:

Balance as of December 31, 2018

Options exercised

Options forfeit, canceled or expired

Balance as of December 31, 2019

Stock Options Vested and Outstanding

Number of OnCore Options

Number of Equivalent
Company Common Shares

Weighted-Average Exercise
Price

139,290  

(40,000)  

—  

99,290  

140,273   $

(40,282)   $

—   $

99,991   $

0.56

0.58

—

0.56

The intrinsic value of options exercised under the OnCore plan during 2019 and 2018 was $0.1 million and $0.3 million, respectively.

The following table summarizes additional information related to the OnCore stock options as of December 31, 2019:

Vested stock options

Intrinsic value (in $000s)

Weighted-average term remaining

90

As of December 31, 2019

$

222,248

4.9 years

 
 
 
 
 
 
 
 
 
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; and (2) fair value adjustments for the Company’s liability-classified stock options.

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

2019

2018

$

$

(in thousands)

2,971   $

3,828  

6,799   $

2,670

3,337

6,007

During the year ended December 31, 2019, the Company recognized $1.1 million of non-cash stock-based compensation expense for the accelerated vesting
stock options, related to the departure of the Company’s former President and Chief Executive Officer in June of 2019.

At December 31, 2019, there remains $6.8 million of unearned compensation expense related to unvested equity employee stock options to be recognized as
expense over a weighted-average period of approximately 2.1 years.

17.    Income taxes

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% (2018 - 27%) to the loss before income taxes as shown in the following tables:

Computed taxes (benefits) at Canadian federal and provincial tax rates

Difference between statutory rate and foreign rate

Adjustments to prior year

Permanent and other differences

Change in valuation allowance - other

Difference due to income taxed at foreign rates

Stock-based compensation

Impairment of goodwill

Deferred income tax benefit

Year ended December 31,

2019

2018

(in thousands)

(44,922)   $

8,356  

(525)  

3,458  

19,078  

(3,343)  

523  

4,719  

(12,656)   $

(16,563)

—

—

(2,328)

13,062

(138)

1,685

—

(4,282)

$

$

As of December 31, 2019, the Company has investment tax credits available to reduce Canadian federal income taxes of $10.0 million, versus $8.8 million as
of December 31, 2018, which expire between 2027 and 2037, and provincial income taxes of $4.5

91

 
 
 
 
                                                                
 
 
 
 
million, versus $4.0 million as of December 31, 2018, which expire between 2024 and 2027. In addition, the Company has research and development credits
of $3.9 million as of December 31, 2019, versus the $4.3 million it had as of December 31, 2018, which expire between 2031 and 2038 and which can be
used to reduce future taxable income in the United States.

As of December 31, 2019, the Company had scientific research and experimental development expenditures of $60.6 million available for indefinite carry-
forward, versus the $61.5 million it had as of December 31, 2018. The Company also had net operating losses of $164.9 million as of December 31, 2019 and
$182.3 million as of December 31, 2018, which are due to expire between 2031 and 2038 and which can be used to offset future taxable income in Canada.

As of December 31, 2019, the Company had $11.7 million of net operating losses due to expire in 2035 and $62.0 million of net operating losses subject to an
indefinite  carryforward  period  which  can  be  used  to  offset  future  taxable  income  in  the  United  States,  versus  the  $11.0  million  the  Company  had  as  of
December 31, 2018. Future use of a portion of the United States loss carry-forwards is subject to limitations under the Internal Revenue Code Section 382.

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 $27.1 million and $139.3 million in pre-tax domestic and foreign losses, respectively, for the year ended December 31, 2019.

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

Deferred tax assets (liabilities):

Non-capital loss carryforwards

Research and development deductions

Book amortization in excess of tax

Share issue costs

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

In-process research and development

Upfront license fees

Equity accounted for investment

Other

Total deferred tax assets (liabilities)

Valuation allowance

Net deferred tax assets (liabilities)

18.    Related Party Transactions

As of December 31,

2019

2018

(in thousands)

$

59,956   $

16,349  

(914)  

202  

5,128  

705  

7,325  

4,535  

—  

236  

3,038  

6,202  

102,762  

(102,762)  

$

—   $

51,575

15,803

(608)

307

—

147

9,686

3,955

(12,664)

283

37

2,503

71,024

(83,685)

(12,661)

During 2018, the Company purchased certain research and development services from Roivant, which were billed at agreed hourly rates and reflective of
market  rates  for  such  services.    The  total  cost  of  these  services  was  $0.6 million  during  2018  and  was  recorded  in  the  income  statement  in  research  and
development. There were no such purchases in 2019.

92

 
 
 
 
 
   
During 2018, the Company also purchased certain research and development services from its equity method investee, Genevant. These services were billed
at agreed hourly rates and reflective of market rates for such services.  The total cost of these services was $0.4 million during 2018 and were included in the
income statement in research and development. There were no such purchases during 2019.

Conversely, Genevant purchased certain administrative and transitional services from the Company totaling $0.1 million and $0.2 million during 2019 and
2018, respectively, and these costs were netted in research and development in the income statement.

In addition, Genevant had a sublease for 17,900 square feet in the Company’s Burnaby facility. Sublease income, including management fee reimbursements,
from Genevant was $0.2 million and $0.2 million, in 2019 and 2018, respectively, which was netted against site consolidation costs in the income statement
(note 10).

19.    Interim financial data (unaudited)

Summarized unaudited quarterly financial data is presented below.

2019
Total revenue

Loss from operations  

Net loss  

Net loss attributable to common shares  

Basic  and  diluted  net 
common share

income/(loss)  per

$

$

$

$

$

Quarters Ended

March 31

June 30

September 301

December 31

Full Year

(in thousands, except per share data)

679   $

(19,071)   $

(23,251)   $

(25,966)   $

653   $

(20,515)   $

(23,315)   $

(26,077)   $

3,061   $

(91,401)   $

(82,503)   $

(85,295)   $

1,618   $

(13,087)   $

(24,654)   $

(27,534)   $

6,011

(144,074)

(153,723)

(164,872)

(0.47)   $

(0.46)   $

(1.50)   $

(0.46)   $

(2.89)

1  In the third quarter of 2019, the Company recorded non-cash impairment charges of $43.8 million and $22.5 million, respectively, to reduce the carrying value of its
IPR&D intangible assets and goodwill to zero. The Company also recognized a corresponding income tax benefit of $12.7 million related to the decrease in its deferred
tax liability related to the IPR&D intangible assets. See note 8 for more information.

2018
Total revenue

Loss from operations

Net loss

income/(loss)  attributable 

Net 
shares

to  common

Basic  and  diluted  net 
common share

income/(loss)  per

$

$

$

$

$

Quarters Ended

March 31

June 30

September 301

December 31

Full Year

1,436   $

(18,405)   $

(17,429)   $

(in thousands, except per share data)

1,244   $

(22,046)   $

3,091   $

1,587   $

(32,426)   $

(24,473)   $

1,678   $

(16,903)   $

(18,249)   $

5,945

(89,780)

(57,060)

(19,765)   $

550   $

(27,040)   $

(20,896)   $

(67,151)

(0.36)   $

0.01   $

(0.49)   $

(0.38)   $

(1.21)

1  In the third quarter of 2018, the Company recorded a $14.8 million non-cash impairment charge to reduce the carrying value of its IPR&D intangible assets, as well as a

corresponding income tax benefit of $4.3 million related to the decrease in the related deferred tax liability.

93

 
 
 
 
 
 
 
 
 
 
 
 
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,  2019,  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, 2019.

Attestation Report of the Registered Public Accounting Firm

The independent registered public accounting firm’s report on the effectiveness of our internal control over financial reporting, is included in Item 8 of this
annual report on Form 10-K and is incorporated herein by reference.

94

 
 
 
 
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, 2019 that have materially affected or are
reasonably likely to materially affect the Company’s internal control over financial reporting.

Item 9B. Other Information

None.

95

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 2020 Annual General Meeting of the Stockholders to
be filed with the SEC within 120 days of the fiscal year ended December 31, 2019.

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 and 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 2020 Annual General Meeting of the Stockholders to
be filed with the SEC within 120 days of the fiscal year ended December 31, 2019.

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 2020 Annual General Meeting of the Stockholders to
be filed with the SEC within 120 days of the fiscal year ended December 31, 2019.

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 2020 Annual General Meeting of the Stockholders to
be filed with the SEC within 120 days of the fiscal year ended December 31, 2019.

Item 14. Principal Accounting Fees and Services

The information required by this item is incorporated herein by reference to our Proxy Statement for the 2020 Annual General Meeting of the Stockholders to
be filed with the SEC within 120 days of the fiscal year ended December 31, 2019.

96

Item 15. Exhibits and Financial Statement Schedules

Exhibit

  Description

PART IV

2.1*

3.1*

3.2*

4.1*

4.2**

10.1†*

10.2†*

10.3†*

10.4**#

10.5†*

10.6†*

10.7†*

10.8†*

10.9*

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).

Governance Agreement between the Company and Roivant Sciences Ltd., a Bermuda exempted company, dated January 11, 2015
(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).

  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 Indemnity Agreement (refiled herein with initial Agreement by reference to Exhibit 4.15 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).

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).

97

 
 
 
 
 
 
 
 
 
 
 
 
 
10.10†*

10.11†*

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*

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).

Forms of Lock-Up 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).

Form of Registration Rights 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).

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).

Form of Representation Letter (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 Elizabeth Howard, dated March 7, 2016 (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 10.1 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).

2016 Omnibus Share and Incentive Plan (incorporated herein by reference to Exhibit 10.2 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).

Subscription Agreement and Related Documents between the Company and Roivant Sciences Ltd. (incorporated herein by reference to
Exhibit A to the Registrant’s Preliminary Proxy Soliciting Materials on Schedule Pre 14A for the Special Meeting, filed with the SEC on
November 21, 2017).

98

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10.26*

10.27*

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*

Governance Amendments between the Company and Roivant Sciences Ltd. (incorporated herein by reference to Exhibit B to the
Registrant’s Preliminary Proxy Soliciting Materials on Schedule Pre 14A for the Special Meeting, filed with the SEC on November 21,
2017).

Amended and Restated Lockup Agreement between the Company and Roivant Sciences Ltd. (incorporated herein by reference to Exhibit
D to the Registrant’s Preliminary Proxy Soliciting Materials on Schedule Pre 14A for the Special Meeting, filed with the SEC on
November 21, 2017).

Amendment to Registration Rights Agreement between the Company and Roivant Sciences Ltd. (incorporated herein by reference to
Exhibit E to the Registrant’s Preliminary Proxy Soliciting Materials on Schedule Pre 14A for the Special Meeting, filed with the SEC on
November 21, 2017).

Amended and Restated Standstill Agreement between the Company and Roivant Sciences Ltd. (incorporated herein by reference to
Exhibit F to the Registrant’s Preliminary Proxy Soliciting Materials on Schedule Pre 14A for the Special Meeting, filed with the SEC on
November 21, 2017).

Preferred Share Article Amendment between the Company and Roivant Sciences Ltd. (incorporated herein by reference to Exhibit G to
the Registrant’s Preliminary Proxy Soliciting Materials on Schedule Pre 14A for the Special Meeting, filed with the SEC on November
21, 2017).

Exclusivity Agreement, dated February 13, 2018, by and between the Company and Roivant Sciences Ltd. (incorporated herein by
reference to Exhibit 7.09 of the Schedule 13D filed with the SEC by Roivant Sciences Ltd. on February 14, 2018).

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).

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 Signing Bonus, dated May 28, 2018, by and between the Company and David Hastings. (incorporated herein by reference to
Exhibit 10.53 of the Form10-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).

Separation Agreement and Release, dated June 13, 2019, by and the Company and Mark J. Murray (incorporated herein by reference to
Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed with the SEC on June 18, 2019).

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).

Form of Indemnity Agreement (incorporated herein by reference to Exhibit 10.4 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).

99

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10.42*

10.43*

10.44*

10.45*

10.46*

10.47*

16.1*

21.1**

23.1**

23.2**

31.1**

31.2**

32.1**

32.2**

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 9, 2019
(incorporated herein by reference to Exhibit 10.7 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).

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).

Form of Arbutus Biopharma Corporation Indemnity Agreement (incorporated herein by reference to Exhibit 10.1 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).

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).

Letter from KPMG LLP, dated April 23, 2019. (incorporated herein by reference to Exhibit 16.1 to the Registrant’s Current Report on
Form 8-K filed with the SEC on April 23, 2019.)

  List of Subsidiaries.

  Consent of KPMG LLP, an Independent Registered Public Accounting Firm.

  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.

Certification of Chief Financial 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.

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

*

**

†

#

Previously filed

Filed herewith

Portions of this exhibit have been omitted in compliance with Item 601 of Regulation S-K.

Management Contract

100

 
 
 
 
 
 
 
 
 
 
 
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

101

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 5, 2020.

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 5, 2020.

Signatures

Capacity in Which Signed

/s/ Frank Torti, M.D.

Dr. Frank Torti, M.D.

/s/ William Collier

William Collier

/s/ David C. Hastings

David C. Hastings

/s/ Daniel Burgess

Daniel Burgess

/s/ Richard C. Henriques

Richard C. Henriques

/s/ Keith Manchester

Keith Manchester

/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

  Director (Chairman)

  President and Chief Executive Officer and Director

  (Principal Executive Officer)

  Chief Financial Officer

  (Principal Financial Officer)

  Director

  Director

  Director

  Director

  Director

  Director

102

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
   
 
   
 
   
   
 
   
   
 
   
   
 
   
   
 
   
   
 
   
   
DESCRIPTION OF THE REGISTRANT’S SECURITIES
REGISTERED PURSUANT TO SECTION 12 OF THE
SECURITIES EXCHANGE ACT OF 1934

Exhibit 4.2 

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 entierty 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 2, 2020 there were (a) 68,941,406 common shares outstanding
and (b) 1,164,000 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.

Series A Participating Convertible Preferred Shares

In October 2017, we entered into a subscription agreement with Roivant Sciences Ltd., or Roivant, for the sale of 1,164,000 Series A participating convertible
preferred shares, or the Preferred Shares, for gross proceeds of $116.4 million. These Preferred Shares are non-voting and accrue an 8.75% per annum coupon
in the form of additional Preferred Shares, compounded annually, until October 16, 2021, at which time all the Preferred Shares will be subject to mandatory
conversion into common shares (subject to limited exceptions in the event of certain fundamental corporate transactions relating to our capital structure or
assets, which would permit earlier conversion at Roivant’s option). The conversion price is $7.13 per share, which will result in the Preferred Shares being
converted into approximately 23 million common shares. After conversion of the Preferred Shares into common shares, based on the number of common
shares outstanding as of March 2, 2020, Roivant would hold approximately 42% of our common

shares. Roivant agreed to a four year lock-up period for this investment and its existing holdings in us. Roivant also agreed to a four year standstill whereby
Roivant will not acquire greater than 49.99% of our common shares or securities convertible into common shares. The initial investment of $50.0 million
closed in October 2017, and the remaining amount of $66.4 million closed in January 2018 following regulatory and shareholder approvals.

Registration Rights

On January 11, 2015, we entered into an Agreement and Plan of Merger and Reorganization, or the Merger Agreement, with OnCore Biopharma, Inc., or
OnCore, pursuant to which OnCore became our wholly-owned subsidiary. In connection with the Merger Agreement, we entered into a Registration Rights
Agreement, or the Registration Rights Agreement, with certain of OnCore’s shareholders. On October 16, 2017, we entered into an Amending Agreement
pursuant to which the common shares underlying the Preferred Shares purchased by Roivant were included as registrable securities under the Registration
Rights Agreement.

Pursuant  to  the  Registration  Rights  Agreement,  certain  holders  of  our  common  shares  have  registration  rights.  After  registration  of  these  common  shares
pursuant  to  these  rights,  these  shares  will  become  freely  tradable  without  restriction  under  the  Securities  Act.  The  registration  rights  will  terminate  with
respect to each shareholder on the date on which such shareholder ceases to beneficially own more than three percent of our common shares then outstanding,
if such shares may be sold pursuant to Rule 144 of the Securities Act.

An aggregate of approximately 42 million common shares are entitled to these registration rights, including approximately 23 million common shares issuable
upon conversion of the Preferred Shares.

Director Nomination Rights

Pursuant to the terms of the Amended and Restated Governance Agreement, dated October 16, 2017, between us and Roivant and Part 28 of our Articles, for
so long as Roivant has "beneficial ownership" (as defined pursuant Rule 13d-3 under the Securities Exchange Act of 1934, as amended, or the Exchange Act),
or Beneficial Ownership, or exercises control or direction over not less than:

•

•

•

thirty percent (30%) of our issued and outstanding common shares calculated on a partially diluted basis as of a particular date, Roivant has the right
to nominate three (3) individuals for election to our Board of Directors at each shareholder meeting, one (1) of whom must satisfy the applicable
independence standards;
twenty percent (20%) of our issued and outstanding common shares calculated on a partially diluted basis as of a particular date, Roivant has the
right to nominate two (2) individuals for election to our Board of Directors at each shareholder meeting; and
ten percent (10%) of our issued and outstanding common shares calculated on a partially diluted basis as of a particular date, Roivant has the right to
nominate one (1) individual for election to our Board of Directors at each shareholder meeting.

Upon Roivant having Beneficial Ownership or exercising control or direction over less than ten percent (10%) of our outstanding common shares calculated
on a partially diluted basis as of a particular date, the nomination rights provided above will be of no further force and effect. The total number of common
shares underlying the Preferred Shares beneficially owned by Roivant are included in the Beneficial Ownership calculations described above.

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).

Arbutus Biopharma Corporation

List of Subsidiaries

Name

Jurisdiction

Arbutus Biopharma Inc.

Delaware, United States of America

Arbutus Biopharma US Holdings, Inc.

Delaware, United States of America

Exhibit 21.1 

 
 
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors
Arbutus Biopharma Corporation

We  consent  to  the  incorporation  by  reference  in  the  registration  statement  (No.  333‑235674)  on  Form  S-3,  and  registration  statements  (No.
333-233192, No. 333-228919, No. 333‑202762, No. 333-212115, and No. 333-186185) on Form S-8 of Arbutus Biopharma Corporation (the
“Company”) of our report dated March 7, 2019, with respect to the consolidated balance sheet of the Company as of December 31, 2018 and
the related consolidated statements of operations and comprehensive loss, stockholders’ equity and cash flows for the year then ended, and
related notes, which report appears in the December 31, 2019 Form 10-K of the Company.

/s/ KPMG LLP
Chartered Professional Accountants

Vancouver, Canada
Date

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.  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,

2) Registration Statement (Form S-8 No. 333-233192) pertaining to the Inducement Plan of Arbutus Biopharma Corporation,

3) Registration Statement (Form S-8 No. 333-228919) pertaining to the 2011 Omnibus Share Compensation Plan,

4) Registration Statement (Form S-8 No. 333-212115) pertaining to the 2016 Omnibus Share and Incentive Plan,

5) Registration Statement (Form S-8 No. 333‑202762) pertaining to the OnCore Biopharma, Inc. 2014 Equity Incentive Plan, and

6) 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 reports dated March 5, 2020, with respect to the consolidated financial statements of Arbutus Biopharma Corporation and the effectiveness of internal
control over financial reporting of Arbutus Biopharma Corporation included in this Annual Report (Form 10-K) of Arbutus Biopharma Corporation for the
year ended December 31, 2019.

/s/ Ernst Young LLP

Philadelphia, Pennsylvania
March 5, 2020

                
            
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:

Exhibit 31.1

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 5, 2020

  /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. 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

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 5, 2020

  /s/ David Hastings

Name:   David Hastings

Title:   Chief Financial Officer

 
 
 
 
CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.1

In connection with the Annual Report of Arbutus Biopharma Corporation (the “Company”) on Form 10-K for the year ended December 31, 2019, 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 5, 2020

  /s/ William Collier

Name:   William Collier

Title:   President and Chief Executive Officer

  (Principal Executive Officer)

 
 
 
 
 
 
CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.2

In connection with the Annual Report of Arbutus Biopharma Corporation (the “Company”) on Form 10-K for the year ended December 31, 2019, 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 5, 2020

  /s/ David Hastings

Name:   David Hastings

Title:   Chief Financial Officer