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Aptose Biosciences Inc.

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FY2019 Annual Report · Aptose Biosciences Inc.
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

(Mark one)

☒

☐

ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2019.

TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number 001-3200

APTOSE BIOSCIENCES INC.

(Exact name of registrant as specified in its charter)

Canada
(State or other jurisdiction of incorporation or organization)

98-1136802
(I.R.S. Employer Identification No.)

251 Consumers Road, Suite 1105
Toronto, Ontario, Canada M2J 4R3
(Address of principal executive offices)

647-479-9828
(Registrant’s telephone number, including area code)

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

Title of each class
Common Shares, no par value

Trading Symbol(s)
APTO

Name of each exchange on which registered
Nasdaq Capital Market

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

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

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

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the

preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
YES ☒ NO ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T

(§229.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). YES ☒ NO ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging

growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange
Act. (Check one):

Large accelerated filer ☐
Non-accelerated filer ☐
Emerging growth company ☒

  Accelerated filer ☐
  Smaller reporting company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised

financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☒

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

The aggregate market value of the voting stock and nonvoting common equity held by non-affiliates computed by reference to the price at which the common equity was last
sold, or the average bid and asked prices of such common equity, as of June 30, 2019 was $143,417,295.

As of March 10, 2020, the registrant had 76,269,806 shares of common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of our Proxy Statement for our 2020 Annual Meeting of Stockholders (the “Proxy Statement”), are incorporated by reference in Part III

 
 
 
   
 
 
 
 
 
 
 
 
TABLE OF CONTENTS

PART I.

ITEM 1. BUSINESS

ITEM 1A. RISK FACTORS

ITEM 1B. UNRESOLVED STAFF COMMENTS

ITEM 2. PROPERTIES

ITEM 3. LEGAL PROCEEDINGS

ITEM 4. MINE SAFETY DISCLOSURES

PART II.

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

ITEM 6. SELECTED FINANCIAL DATA

ITEM 7 - MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

ITEM 7A. QUALITATIVE AND QUANTITATIVE DISCLOSURES ABOUT MARKET RISK

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

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

ITEM 9A. CONTROLS AND PROCEDURES

ITEM 9B. OTHER INFORMATION

PART III.

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

ITEM 11. EXECUTIVE COMPENSATION

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

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AN DIRECTOR INDEPENDENCE

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

PART IV.

ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

ITEM 16. FORM 10-K SUMMARY

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This Annual Report on Form 10-K contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and

Section 21E of the Securities Exchange Act of 1934, as amended, and is subject to the safe harbor created by those sections. For more information, see “Part I. Item 1. Business
— Cautionary Note Regarding Forward-Looking Statements.”

As used in this report, the terms “Aptose,” “Aptose Biosciences,” the “Company,” “we,” “us,” “our” and similar references refer to Aptose Biosciences Inc.

(formerly known as Lorus Therapeutics Inc.) and our consolidated subsidiaries, and the term “common stock” refers to our common stock, no par value.

Aptose has historically qualified as a “foreign private issuer” for purposes of reporting under the Securities Exchange Act of 1934, as amended, and filing registration

statements under the Securities Act of 1933, as amended. Effective December 31, 2018, however, Aptose ceased qualifying as a foreign private issuer and began filing reports
with the SEC as a “domestic issuer”. As a result, Aptose changed the accounting standards by which it prepares its financial statements from International Financial Reporting
Standards, or “IFRS”, to generally accepted accounting principles in the United States, or “US GAAP”. All financial statements contained in this Annual Report are
presented on the basis of U.S. GAAP. This report contains the following trademarks, trade names and service marks of ours: Aptose. This report also contains trademarks,
trade names and service marks that are owned by other persons or entities.

 PART I.

 ITEM 1. BUSINESS

Overview

Aptose  is  a  science-driven  biotechnology  company  advancing  highly  differentiated  agents  to  treat  unmet  medical  needs  in  life-threatening  cancers,  such  as  acute  myeloid
leukemia  (“AML”),  certain  B-cell  malignancies,  high-risk  myelodysplastic  syndrome  (“MDS”)  and  other  hematologic  malignancies. Aptose  is  a  publicly  listed  company
incorporated under the laws of Canada. The Company’s shares are listed on the Nasdaq Capital Markets and the Toronto Stock Exchange. The Company was incorporated on
September 5, 1986, under the name RML Medical Laboratories (“RML”) pursuant to the Business Corporations Act (Ontario). Between 1986 and 2014, the Company operated
under the names of RML, IMUTEC Corporation and Lorus Therapeutics Inc. On August 28, 2014, the Company changed its name from Lorus Therapeutics Inc. to Aptose
Biosciences Inc. and, on October 1, 2014, we consolidated our outstanding common shares (the “Common Shares”) on the basis of one post-consolidation Common Share for
each twelve pre-consolidation Common Shares.

Based on insights  into  the  genetic  and  epigenetic  profiles  of  certain  cancers  and  patient  populations, Aptose  is  building  a  pipeline  of  novel  and  targeted  oncology  therapies
directed at dysregulated processes and signaling pathways in cancer cells, and this strategy is intended to optimize efficacy through simultaneous targeting of key drivers of
disease in cancer cells, while preserving quality of life in patients by minimizing the side effects associated with conventional therapies. Our product pipeline includes cancer
drug  candidates  that  exert  potent  activity  as  stand-alone  agents  and  that  enhance  the  activities  of  other  anticancer  agents  without  causing  overlapping  toxicities.  Indeed,  we
believe our targeted products can emerge as first-in-class or best-in-class agents that deliver single agent benefit and may serve as part of a combination therapeutic strategy for
specific populations of cancer patients.

We believe the future of cancer treatment and management lies in the prospective selection and treatment of patients having malignancies that are genetically or epigenetically
predisposed to response based on a drug’s unique mechanism of action. We are of the view that many drugs currently approved for the treatment and management of cancer are
not selective for the specific genetic alterations (targets) and pathways that cause the patient’s tumor and hence allow for disease progression and /or significant toxicities due to
off-target effects. Aptose’s strategy is to develop agents that target underlying disease-promoting mutations or altered pathways within a patient population, and we intend to
apply this strategy across several therapeutic indications in oncology, including hematologic malignancies and solid tumor indications.

Aptose Programs

Aptose has two clinical-stage programs, and a third program that is discovery-stage and partnered with another company.

·

CG-806, our first clinical stage program: An investigational new drug (“IND”) application was submitted February 22, 2019 to the U.S. Food and Drug Administration
(“FDA”)  for  CG026806  (“CG-806”), Aptose’s  mutation-agnostic  FMS-like  tyrosine  kinase  3  /  Bruton’s  tyrosine  kinase  (“FLT3/BTK”)  inhibitor.  CG-806  is  being
currently  evaluated  in  a  Phase  Ia/b  dose  escalation  study  in  patients  with  certain  B-cell  malignancies,  including  chronic  lymphocytic  leukemia  (“CLL”),  small
lymphocytic lymphoma (“SLL”) and certain non-Hodgkin’s lymphomas (“NHL”) that are resistant/refractory/intolerant to other therapies. The CG-806 clinical program
also is planned to expand into patients with relapsed/refractory (“R/R”) acute myeloid leukemia (“R/R AML”), including the emerging populations resistant to FLT3
inhibitors.

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·

·

APTO-253, our second clinical-stage program: APTO-253 is a small molecule MYC oncogene inhibitor and we are currently enrolling patients in a Phase Ib clinical trial
for the treatment of patients with R/R blood cancers, including AML and high-risk MDS.

APL-581, our partnered program, is a dual bromodomain and extra-terminal domain motif (“BET”) protein and kinase inhibitor program which we partnered to Ohm
Oncology (“OHM”) on March 7, 2018.

Aptose  is  committed  to  the  development  of  anticancer  drugs  that  target  aberrant  oncologic  signaling  that  underlies  a  particular  life-threatening  malignancy.  This  targeted
approach is intended to impact the disease-causing events in cancer cells without affecting normal processes within cells. Such an approach requires that we first identify critical
underlying oncogenic mechanisms in cancer cells and then develop a therapeutic that selectively impacts such oncogenic mechanisms.

·

·

As a cluster-selective kinase inhibitor, CG-806 targets multiple critical pathways that overlap to lead to the proliferation of cancer cells, including the B-cell receptor
signaling pathway and FLT3 receptor pathways, as well as other receptor kinases and signaling cascades that drive dysregulated survival of the cancer cells.

Further, Aptose created the APTO-253 small molecule targeted drug that inhibits expression of the MYC oncogene and is under development as a novel therapy for
AML  and  related  MDS.  Dysregulation  of  the  MYC  oncogene  reprograms  signaling  of  cancer  cells  to  allow  for  malignant  transformation  and  resistance  to  typical
anticancer drugs. APTO-253 directly targets the MYC gene and inhibits production of MYC mRNA and protein, thereby leading to cancer cell death.

The following table sets forth various product conditions in our pipeline and their respective stages of development.

CG-806 Program

Overview

On May 7, 2018, we exercised an option by paying $2.0 million in cash to South Korean company CrystalGenomics, Inc. (“CG”), in order to purchase an exclusive license to
research, develop and commercialize CG-806 in all countries of the world except the Republic of Korea and China, for all fields of use (collectively, the “Rights”). CG-806 is a
highly  potent,  orally  bioavailable  non-covalent  small  molecule  being  developed  for  AML  and  certain  B-cell  malignancies  because  of  its  actions  as  a  mutation-agnostic
FLT3/BTK  inhibitor.  Subsequently,  on  June  14,  2018,  we  announced  that  we  entered  into  a  license  agreement  with  CG  for Aptose  to  gain  a  license  for  Rights  in  China
(including the People’s Republic of China, Hong Kong and Macau) (the “China Rights”). Under the license agreement, Aptose made an upfront payment to CG of $3.0 million
for the China Rights. CG is eligible for development, regulatory and commercial-based milestones, as well as single-digit royalties on product sales in China. The total deal
value for the China Rights, including the upfront payment, is up to $125 million. Aptose now owns worldwide (excluding Korea) Rights, including an issued patent in China, to
CG-806, a first-in-class, highly potent oral small molecule being developed for AML, B-cell malignancies and other hematologic malignancies. Future possible royalties that
might  be  paid  under  these  agreements  are  determined  on  a  country-by-country  and  product-by-product  basis,  on  net  sales  during  the  period  of  time  beginning  on  the  first
commercial sale of such product in such country and continuing until the later of: (i) the expiration of the last-to-expire valid claim of the CG Patents in such country covering
such product; and (ii) ten (10) years after the first commercial sale of such product in such country.

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CG-806 exhibits a picomolar half maximal inhibitory concentration (IC50) toward FLT3 with the Internal Tandem Duplication (“FLT3-ITD”), potency against the wild type
FLT3  and  a  host  of  mutant  forms  of  FLT3,  as  well  as  single-digit  nanomolar  IC50’s  against  BTK  and  its  C481S  mutant  (“BTK-C481S”).  Consequently,  CG-806  is
characterized  as  a  mutation-agnostic  FLT3/  BTK  inhibitor.  Further,  CG-806  suppresses  a  small  group  of  other  relevant  oncogenic  kinases/pathways  (including  CSF1R,
PDGFRα, TRK, and the ERK, MYC, AKT/mTOR/S6K and AURK/H3S10 pathways) that are operative in AML and certain B cell malignancies, but does not inhibit the TEC,
EGFR and ErbB2/4 kinases that are responsible for safety concerns with certain other kinase inhibitors.

As  a  potent  inhibitor  of  FLT3-ITD,  CG-806  may  become  an  effective  therapy  in  a  high-risk  subset  of AML  patients.  This  is  because  the  FLT3-ITD  mutation  occurs  in
approximately  30%  of  patients  with AML  and  is  associated  with  a  poor  prognosis.  In  murine  xenograft  studies  of  human AML  (FLT3-ITD),  CG-806  administered  orally
resulted  in  tumor  elimination  (“cures”)  without  measurable  toxicity.  Importantly,  CG-806  targets  other  oncogenic  kinases  which  may  also  be  operative  in  FLT3-ITD AML,
thereby potentially allowing the agent to become an important therapeutic option for a broader group of this difficult-to-treat AML patient population. The findings that CG-806
targets all forms of FLT3 and several other key oncogenic pathways, and that CG-806 was well tolerated from a safety perspective during efficacy and formal Good Laboratory
Practice  (“GLP”)  toxicology  studies,  suggest  that  CG-806  may  also  have  applicability  in  treating  patients,  particularly  those  over  the  age  of  65,  who  cannot  tolerate  other
therapies.

Separate from the AML and FLT3 story, CG-806 may be a preferable treatment for patients with B cell malignancies over alternatives such as ibrutinib or other commercially
approved  or  development  stage  BTK  inhibitors  in  certain  circumstances.  Overexpression  of  the  BTK  enzyme  can  drive  oncogenic  signaling  of  certain  B  cell  malignancies,
including  chronic  lymphocytic  leukemia  (“CLL”)  and  certain  NHL  such  as  mantle  cell  lymphoma  (“MCL”),  diffuse  large  cell  B  cell  lymphoma  (“DLBCL”)  and  others.
Therapy of these patients with covalent, irreversible BTK inhibitors, such as ibrutinib, that target the active site cysteine (“Cys”) residue of BTK can be beneficial in many
patients. However, therapy with covalent BTK inhibitors can select for BTK with a C481S mutation, thereby conferring resistance to covalent BTK inhibitors. Furthermore,
approximately  half  of  CLL  patients  have  discontinued  treatment  with  ibrutinib  after  3.4  years  of  therapy.  Discontinuation  of  ibrutinib  is  due  to  the  development  of  drug
resistance  (in  particular,  patients  have  malignancies  that  developed  the  BTK-C481S  mutation),  or  due  to  refractory  disease  (patient  tumors  did  not  respond  to  ibrutinib)  or
intolerance (side effects led to discontinuation of ibrutinib), according to a study performed at The Ohio State University. The C481S mutation is observed in 5-10% of the
patients,  while  40-45%  of  the  patients  were  intolerant  or  refractory  to  ibrutinib. As  a  non-covalent,  reversible  inhibitor  of  BTK,  CG-806  does  not  rely  on  the  Cysteine  481
residue  (“C481”)  for  inhibition  of  the  BTK  enzyme.  Indeed,  recent  X-ray  crystallographic  studies  (with  wild  type  and  C481S  BTK)  demonstrated  that  CG-806  binds
productively to the BTK active site in a manner that is indifferent to the presence or absence of mutations at the 481 residue. Moreover, in vitro studies demonstrated that CG-
806  kills  B  cell  malignancy  cell  lines  on  average  approximately  1000  times  more  potently  than  ibrutinib  and  kills  ibrutinib-resistance  cancer  cells,  and  that  CG-806  more
potently  killed  primary  malignant  cells  taken  from  the  bone  marrow  of  CLL  and ALL  B-cell  cancer  patients.  Yet,  CG-806  demonstrated  a  high  degree  of  safety  in  animal
efficacy and GLP toxicology studies. Consequently, patients who are resistant, refractory or intolerant to ibrutinib or other commercially approved or development-stage BTK
inhibitors with B cell malignancies may continue to be sensitive to CG-806 therapy. This is particularly true since CG-806 inhibits the wild type and mutant forms of BTK, as
well as other kinases/pathways that drive the survival and proliferation of B cell malignancies.

Role of BTK in B-cell signaling

BTK, a member of the TEC family kinase, is an essential element of B-cell receptor (“BCR”) signaling, which is required for B-cell maturation, survival and proliferation. It is
an  upstream  activator  of  multiple  pro-survival  /  anti-apoptotic  pathways,  including  the  NF-KB,  mTOR-AKT,  RAS,  ERK  and  MAPK  pathways.  BTK  is  overexpressed  in
malignant cells from patients with various B-cell malignancies, such as CLL, MCL, AML, and DLBCL. Disruption of BCR signaling via inhibition of BTK, has been shown to
lead to clinical remissions in these patients.

CG-806 as a Non-covalent, Reversible Kinase Inhibitor

Binding studies of CG-806 have confirmed non-covalent, reversible inhibition of BTK, FLT3-ITD and Aurora Kinase A. Ibrutinib, a commercially-approved, covalent BTK
inhibitor, possesses a Michael acceptor to react with C481 in BTK and irreversibly inactivates the BTK enzyme. In contrast, CG-806 does not require reactivity with the C481
residue for inhibition of the BTK enzyme, thereby allowing CG-806 to inhibit the wild type and C481 mutant form of the BTK enzyme.

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Preclinical In Vitro Evaluation of CG-806

CG-806 is a potent inhibitor of BTK and FLT3 wild types, as well as the BTK C481S and FLT3-ITD mutants, which are strongly associated with clinical relapse or are negative
prognostic factors in patients. In enzymatic assays, CG-806 has demonstrated potency against the BTK C481S mutant with a half maximal IC50 of 2.5 nanomolar (nM). CG-
806 also has potent activity against the FLT-ITD mutation, occurring in 30-35% of AML patients, with an IC50 against the purified enzyme of 0.8nM (800pM). Likewise, CG-
806 exerts low nM IC50 values against the FLT3 enzyme having various mutations in the tyrosine kinase domain (TKD) and the Gatekeeper region, and CG-806 has the ability
to potently suppress the CSF1R, PDGFRα, AKT/mTOR/S6K, ERK, MAPK, MYC and AURK/H3S10 pathways. Finally, CG-806 does not exhibit any inhibition of epidermal
growth  factor  receptor  (“EGFR”),  TEC  or  ErbB2/4  kinases.  Inhibition  of  one  or  more  of  these  kinases  has  been  speculated  to  contribute  to  the  toxicity  observed  from  the
commercially approved BTK inhibitor.

BTK is overexpressed in the blast cells of approximately 80% of AML patients as compared to normal peripheral blood mononuclear cells (“PBMCs”) in healthy subjects.
Researchers have shown that BTK inhibition attenuates the proliferation and survival of FLT3-ITD primary AML blasts and AML cell lines, as well as inhibits the downstream
activation  of  FLT3-ITD-dependent  MYC  and  STAT5  kinases.  We  believe  that  CG-806  is  the  only  drug  in  development  that  inhibits  both  FLT3-ITD  and  BTK  pathways
reported to synergize to drive the proliferation and survival of AML.

CG-806 Xenograft Studies

In vivo subcutaneous AML tumor models of anti-cancer efficacy revealed CG-806 induced rapid and sustained tumor eradication (Figure 1a). CG-806 was administered orally
once  daily,  for  14  days.  Moreover,  CG-806  exhibited  the  sustained  tumor  elimination  post  therapy,  while  demonstrating  no  impact  to  murine  body  weight,  no  impacts  to
hematology cell counts or visible organ toxicities – necropsy and clinical pathology findings did not reveal any abnormal observations. A maximum tolerated dose has not yet
been identified with murine xenograft studies.

Figure 1a. Efficacy of CG-806 in MV4-11 xenograft model.

MV4-11 tumor bearing mice were administered an oral suspension once daily for 14 days of CG-806 at 2 mg/kg (red line), 10 mg/kg (green line) or 100 mg/kg (purple line),
Ibrutinib, 12 mg/kg (black line), or Vehicle Control (light blue line) with 7-day post-treatment follow-up. Tumor volumes and body weights were measured 3 times weekly.

In a separate MV4-11 xenograft study (Figure 1b), the antitumor efficacy of CG-806 and mouse survival over 120 days were evaluated when mice were treated orally for 28
consecutive days with CG 806 at dose levels of 0 (vehicle only, red), 10 (olive), 30 (green), 100 (blue), or 300 mg/kg (magenta). In this study, the clinical formulation (CG-806
co-micronized with 2.5% sodium lauryl sulfate (SLS) and the dosing schedule (“BID”) planned for human clinical studies were utilized. CG-806 produced slower tumor growth
and extended survival at the 10 and 30mg/kg dose levels, while 100% cure rates were achieved at the 100 and 300 mg/kg dose levels (11/11 mice survived in the latter two
groups). Moreover, no signs of toxicity were noted at any dose level.

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Figure 1b. CG-806 Extends Survival in a Dose-Dependent Way in MV4-11 AML Xenograft Mouse Model Following Oral BID Dosing for 28 Consecutive Days.

Although the above murine xenograft models demonstrate potent antitumor activity with no observed toxicity, the models utilize an AML cell line rather than cells derived
from an AML patient. In a study performed at the University of Texas MD Anderson Cancer Center (“MDACC”), the efficacy of CG-806 was evaluated in a patient derived
xenograft (“PDX”) model (Figure 1c). Bone marrow cells were collected from an AML patient that had relapsed on a clinical trial. The patient entered the trial with FLT3-ITD
AML and was placed on sorafenib and azacytidine. After one cycle, the patient had a complete response but then relapsed after cycle 3. Genetic analysis demonstrated that the
AML cells had acquired a second mutation in AML, and this was the D835 mutation, making the patient dual mutant FLT3-ITD/D835. Bone marrow cells from the patient
(AML FLT3-ITD/D835) were implanted in mice to establish a PDX model. Expansion of the human AML cells in the bone marrow and peripheral blood of the mice took
approximately one month. In the vehicle (15% Transcutol HP/85% PEG-400) treated mice, the leukemic burden in the peripheral blood increased from day 31 through day 50
and  beyond.  However,  treatment  with  100  mg/kg  CG-806  (orally  daily  for  5  consecutive  days  followed  by  2  days  off  every  week),  resulted  in  significant  reduction  in  the
leukemic burden and reductions in splenomegaly at 52 days post-implantation. These data suggest CG-806 may be used to treat patients whose disease has become resistant to
other FLT3 inhibitors.

Figure 1c. CG-806 Efficacy in PDX Model Against AML Patient Cells with FLT3-ITD+D835Y Mutations

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APTO-253 Program

Overview

APTO-253,  our  second  clinical-stage  program,  is  a  novel  small  molecule  therapeutic  agent  that  inhibits  expression  of  the  MYC  oncogene,  leading  to  cell  cycle  arrest  and
programmed cell death (apoptosis) in human-derived solid tumor and hematologic cancer cells, without causing general myelosuppression of the healthy bone marrow. The
MYC oncogene is overexpressed in hematologic cancers, including AML. MYC is a transcription factor that regulates cell growth, proliferation, differentiation and apoptosis,
and overexpression amplifies new sets of genes to promote oncogenesis. APTO-253 dramatically down-regulates expression of the MYC oncogene in AML cells and depletes
those cells of the MYC oncoprotein, leading to apoptotic cell death in AML cells. Thus APTO-253 may serve as safe and effective MYC inhibitor for AML that combines well
with other agents and does not impact the normal bone marrow.

During 2015, we were evaluating APTO-253 in a Phase Ib clinical trial in patients with relapsed / refractory hematologic malignancies, particularly AML and MDS, before
being placed on clinical hold by the FDA in November 2015.  The  Phase  Ib  trial  was  placed  on  clinical  hold  in  order  to  solve  a  chemistry-based  formulation  issue,  and  the
chemistry of the API and the formulation underwent minor modifications to deliver a stable and soluble drug product for return to the clinical setting. In December 2016, we
announced that we had successfully manufactured multiple non-GMP batches of a new drug product formulation for APTO-253, including a batch that had been stable and
soluble for over six months. However, the 40L batch that was the intended clinical supply encountered an unanticipated mishap during the filling process that compromised the
stability of that batch of drug product. On January 23, 2017, we announced that the root cause and corrective action studies would take longer than originally expected and that
we would temporarily delay clinical activities with APTO-253 in order to elucidate the cause of manufacturing mishap, with the intention of restoring the molecule to a state
supporting clinical development and partnering. Formal root cause analyses studies were completed to identify the reason for the drug product stability failure, and a correction
action was implemented. We then manufactured a new GMP clinical supply of drug product and performed the studies required to demonstrate the fitness of the drug product
for clinical usage, and presented the findings to the FDA in the second quarter of 2018. On June 28, 2018, the FDA notified us that it had lifted the clinical hold on APTO-253.
This was followed by resubmission of the revised clinical protocol to Institutional Review Boards (“IRB”) at multiple clinical sites.

On November 28, 2018, we announced that we dosed the first patient in the re-initiation of the Phase Ib Clinical Study of APTO-253. Since then, we have completed the first
three dose cohorts (20mg/m2, 40mg/m2 and 66mg/m2) and are currently dosing patients in the fourth dose cohort at 100mg/m2 dose level. In the patients we have dosed at the
first three dose levels, we observed meaningful reductions in MYC expression in the patient PBMC samples and noted that the drug product is well tolerated to date.

APTO-253 Studies on Solid Tumors

In January 2011, Aptose announced the first patient enrollment in a Phase I dose-escalation study for APTO-253 in patients with advanced or metastatic solid tumors who are
unresponsive to conventional therapy or for whom no effective therapy is available. The study was initially being conducted at Memorial Sloan-Kettering Cancer Center in New
York.  Objectives  of  the  study  included  determination  or  characterization  of  the  safety  profile,  maximum  tolerated  dose,  and  antitumor  activity  of APTO-253,  as  well  as
pharmacokinetics and a recommended Phase II dose for subsequent clinical trials.

In June 2012, MDACC in Houston was added as a second site under the direction of Dr. Jennifer Wheler as the principal investigator. In addition, Aptose announced that the
study had successfully completed the accelerated drug dose escalation stage (Stage 1), with further escalation under way in the non-accelerated dose escalation stage (Stage 2)
for the purpose of determining the maximal tolerated dose level and recommended Phase II dose. The addition of a second site expanded patient availability for enrollment.

In January 2013, Aptose announced that Phase I clinical study of APTO-253 had successfully escalated to the target dose level based on predicted and observed clinical effects
without limitation by toxicity. The success of this study allowed Aptose to initiate a biomarker clinical investigation to further explore the effects of the drug at relevant doses
determined in the clinical trial.

In April 2013, Aptose announced that studies demonstrated the antitumor activity of APTO-253 in animal models of human NSCLC with a dose-response effect in NSCLC.

In July 2013, Aptose announced the results of the Phase I clinical trial of APTO-253. In this first-in-man dose-escalation clinical study, APTO-253 demonstrated a favorable
safety profile, as well as encouraging signs of antitumor activity in patients with solid tumors. The design of this trial consisted of APTO-253 as a single agent in patients with
advanced solid tumors resistant to multiple standard therapies. The study enrolled 27 patients, all of which had failed a median of four prior chemotherapies. Although this was
primarily a dose-escalation safety study, efficacy and pharmacokinetics were also explored.

7

 
 
 
 
 
 
 
 
 
 
 
 
The clinical trial enrolled patients at seven dose levels ranging from 20 to 229 mg/m2. Of the 27 patients enrolled, 17 were evaluable for efficacy. Of these 17 patients, seven
(41%)  achieved  stable  disease  by  Response  Evaluation  Criteria  In  Solid  Tumors  (“RECIST”).  This  included  patients  with  colorectal,  lung,  appendiceal,  liver  and  uterine
cancers. Dose related activity was demonstrated at the higher dose levels (176 and 229 mg/m2). At these two highest dose levels, four of five evaluable patients (80%) achieved
sustained stable disease by RECIST ranging from 5.6 months to 8 months, representative of disease control. Of these, a patient with non-small cell lung cancer at the highest
dose level additionally demonstrated non-index tumor shrinkage.

The safety assessment indicated that APTO-253 was well tolerated at all dose levels tested in this trial. The dose escalation was not limited by toxicity. The most common
adverse event was Grade 1 or 2 fatigue seen in three patients. There was one Grade 3 toxicity, asymptomatic low blood phosphate level that was reversible by supplementation
with phosphates. The pharmacokinetic profile was consistent with the predictive profile seen preclinically, and the elimination profile and half-life in patients were suggestive of
a very rapid distribution phase and prolonged retention. No further studies were performed by the prior administration of Aptose following the arrival of the new administration
in late 2013.

APL-581 Program

In November 2015, Aptose announced an exclusive drug discovery partnership with Laxai Avanti Life Sciences (“LALS”) for their expertise in next generation epigenetic-
based therapies. Under the agreement, LALS was to be responsible for developing multiple clinical candidates, including optimizing candidates that exert dual BRD4 / kinase
inhibitory  activity.  Based  on  available  resources,  Aptose  halted  further  investment  in  the  collaboration  with  LALS  in  late  2016.  However,  the  program  delivered  novel
intellectual property and hit molecules (such as APL-581). Consequently, Aptose chose to out-license the program.

On March 7, 2018, Aptose entered into an exclusive global license agreement with OHM, an affiliate of LALS that was formed in 2016 to advance the clinical development of
compelling molecules derived from the LALS initiative, for the development, manufacture and commercialization of APL-581, as well as related molecules, from Aptose’s dual
BET protein and kinase inhibitor program. Under the agreement, Aptose retained reacquisition rights to certain molecules, while OHM/LALS has the rights to develop and
sublicense all other molecules. Aptose received a nominal upfront cash payment and is eligible to receive up to $125 million of additional payments based on the achievement of
certain developmental, regulatory and sales milestones, as well as significant royalties on future sales generated from the program, if any. We have not received any milestone
or royalty payments pursuant to this agreement. Future possible royalties that might be paid by Ohm to Aptose under these agreements are determined on a country-by-country
and product-by-product basis, on net sales during the period of time beginning on the first commercial sale of such product in such country and continuing until the later of: (i)
the expiration of the last-to-expire valid claim of the CG Patents in such country covering such product; and (ii) ten (10) years after the first commercial sale of such product in
such country.

Competitive Conditions

The biotechnology and pharmaceutical industries are characterized by rapidly evolving technology and intense competition. There are numerous companies in these industries
that are focusing their efforts on activities similar to ours. Some of these are companies with established positions in the pharmaceutical industry and may have substantially
more financial and technical resources, more extensive research and development capabilities, and greater marketing, distribution, production and human resources than Aptose.
In addition, we face competition from other companies for opportunities to enter into partnerships with biotechnology and pharmaceutical companies and academic institutions.

Competition  with  our  potential  products  may  include  chemotherapeutic  agents,  monoclonal  antibodies,  antisense  therapies,  small  molecules,  immunotherapies,  vaccines  and
other biologics with novel mechanisms of action. These drugs may kill cancer cells indiscriminately, or through a targeted approach, and some have the potential to be used in
non-cancer indications. We also expect that we will experience competition from established and emerging pharmaceutical and biotechnology companies that have other forms
of treatment for the cancers that we target, including drugs currently in development for the treatment of cancer that employ a number of novel approaches for attacking these
cancer targets. Cancer is a complex disease with more than 100 indications requiring drugs for treatment. The drugs in competition with our potential drugs have specific targets
for attacking the disease, targets which are not necessarily the same as ours. These competitive drugs, however, could potentially also be used together in combination therapies
with  our  drugs  to  manage  the  disease.  Other  factors  that  could  render  our  potential  products  less  competitive  may  include  the  stage  of  development,  where  competitors’
products may achieve earlier commercialization, as well as superior patent protection, better safety profiles, or a preferred cost-benefit profile.

CG-806 Treatment for B Cell Malignancies

We are aware of a number of companies that have developed and are pursuing different approaches to BTK inhibition, both for the wild type and to the C481S-mutant forms.
Companies  that  have  developed  approved  or  are  currently  developing  inhibitors  that  directly  target  the  wild  type  include  AbbVie  (IMBRUVICA)  and  AstraZeneca
(CALQUENCE) and Beigene Co., Ltd. (Zanubrutinib).

Others that are developing inhibitors that target the C481S-mutant BTK include Merck (ARQ 531), Roche, Sunesis Pharmaceuticals (vecabrutinib) and Eli Lilly (LOXO-305)
among others.

8

 
 
 
 
 
 
 
 
 
 
 
 
 
CG-806 and APTO-253 for AML

We also face intense competition in AML as there is a wide range of therapies that have been approved and are under development for the treatment of AML. Companies that
have  developed  approved  or  are  currently  developing  non-targeted  therapies  include  Jazz  (VYXEOS),  Pfizer  (MYLOTARG)  and AbbVie  (VENCLEXTA),  among  others.
Others that have developed or are developing highly targeted therapies such as FLT3 include Novartis (RYDAPT), Astellas (XOSAPTA), Daiichi Sankyo (quizartinib), Arog
(crenolanib), and IDH1/2 include Agios (TIBSOVO) and Celgene/BMS (IDHIFA) among others.

Manufacturers, Suppliers and Other Third Party Contractors

Contract manufacturing organizations (“CMOs”) manufacture our product candidates for all preclinical studies and clinical trials. We rely on CMOs for manufacturing, filling,
packaging, storing and shipping of drug product in compliance with Current Good Manufacturing Practice (“cGMP”) regulations applicable to our products. The FDA ensures
the quality of drug products by carefully monitoring drug manufacturers’ compliance with cGMP regulations. The cGMP regulations for drugs contain minimum requirements
for the methods, facilities and controls used in manufacturing, processing and packing of a drug product. These CMOs are reputable companies active in the biotechnology
industry. Pricing is predictable as there are many alternatives of such supplies that are readily available.

We rely and will continue to rely on third party contract research organizations (“CROs”) to conduct a significant portion of our preclinical and clinical development activities.
Preclinical  activities  include in vivo studies providing access to specific disease models, pharmacology and toxicology studies, and assay development. Clinical development
activities include trial design, regulatory submissions, clinical patient recruitment, clinical trial monitoring, clinical data management and analysis, safety monitoring and project
management, contract manufacturing and quality assurance.

Intellectual Property

We believe that our issued patents and pending applications are important in establishing and maintaining a competitive position with respect to our products and technology.

CG-806

A Patent Cooperation Treaty (“PCT”) application providing composition of matter and use protection for CG-806 was filed in late 2013, with a potential expiry in 2033 before
extension opportunities, across all major geographies

In May 2018, we paid $2.0 million in cash and licensed the rights to CG-806, for all fields of use, in all territories outside of the Republic of Korea and China, by exercising an
option  we  obtained  through  a  June  2016  option-license  agreement  with  South  Korean  company  CrystalGenomics,  Inc.  (“CG”)  that  had  granted  us  an  exclusive  option  to
research, develop and commercialize (collectively, the “Rights”) CG-806.

In June 2018, we entered into a separate license agreement with CG for Aptose to gain a license for Rights to CG-806 in the People’s Republic of China, Hong Kong and Macau
(the  “China  Rights”).  This  license  agreement  was  formally  executed  by Aptose  through  an  upfront  payment  to  CG  of  $3.0  million  for  the  China  Rights.  CG  is  eligible  for
payments upon the achievement of developmental, regulatory and commercial-based milestones, as well as single-digit royalties on product sales in China. Aptose now owns
worldwide Rights to CG-806, including an issued patent in China but excluding any Rights in Korea.

US Patent No. 9,758,508

On September 12, 2017, we announced that United States Patent and Trademark Office (“USPTO”) issued patent number 9,758,508 entitled “2,3-dihydro-isoindole-1-on
derivative as BTK kinase suppressant, and pharmaceutical composition including same”. patent claims numerous compounds, including the CG-806 compound, pharmaceutical
compositions comprising the CG-806 compound, and methods of treating various diseases. The patent is expected to provide protection until December of 2033.

European Patent No. EP2940014B1

The  granted  patent  claims  the  CG-806  compound,  pharmaceutical  compositions  comprising  the  CG-806  compound,  and  uses  for  treating  diseases  caused  by  abnormal  or
uncontrolled activation of protein kinases, such as cancer. This European patent will be nationalized in, and cover, approximately forty European countries including the United
Kingdom, France, Germany, Italy, Netherlands and Spain. The patent is expected to provide protection until December of 2033.

9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Australian Patent No. 2013371146

The granted patent clams numerous compounds, including the CG-806 compound, pharmaceutical compositions comprising the CG-806 compound, and methods of treating
various diseases. The patent is expected to provide protection until December of 2033.

Chinese Patent No. CN 104995184 B

The  granted  patent  claims  numerous  compounds,  including  the  CG-806  compound,  pharmaceutical  compositions  comprising  the  CG-806  compound,  and  the  use  of  such  a
compound for the manufacture of a pharmaceutical composition for treating a disease caused by an abnormal or uncontrolled protein kinase. The patent is expected to provide
protection until December of 2033.

Japanese Patent No. 6325573

The  granted  patent  claims  numerous  compounds,  including  the  CG-806  compound,  pharmaceutical  compositions  comprising  the  CG-806  compound,  and  the  use  of  such  a
compound for the manufacture of a pharmaceutical composition for treating a disease caused by an abnormal or uncontrolled protein kinase. The patent is expected to provide
protection until December of 2033.

Canadian Patent No. 2896711

The  granted  patent  claims  numerous  compounds,  including  the  CG-806  compound,  pharmaceutical  compositions  comprising  the  CG-806  compound,  and  the  use  of  such  a
compound for the manufacture of a pharmaceutical composition for treating a disease caused by an abnormal or uncontrolled protein kinase. The patent is expected to provide
protection until December of 2033.

APTO-253

As of March 10, 2020, we are the owner of record of five issued U.S. patents, which together provide coverage for the APTO-253 compound, its pharmaceutical composition
and methods of treating various cancers with APTO-253, including solid tumors and leukemia. The APTO-253 composition of matter has patent protection until February, 2028
in the United States and May, 2026 in other countries. We also hold 20 international (non-U.S.) patents which together provide coverage for APTO-253, three of which are
issued European patents, validated in at least eight countries in Europe. Our patents also include several compounds that are similar to APTO-253, which provide protection
from competitors seeking to develop anticancer products that are related in chemical structure to APTO-253.

Environmental Protection

The  Company’s  research  and  development  activities  involve  the  controlled  use  of  hazardous  and  radioactive  materials  and,  accordingly,  the  Company  is  subject  to  federal,
provincial and local laws and regulations in the United States and Canada governing the use, manufacture, storage, handling and disposal of such materials and certain waste
products.  To  the  knowledge  of  the  Company,  compliance  with  such  environmental  laws  and  regulations  does  not  and  will  not  have  any  significant  impact  on  its  capital
spending, profits or competitive position within the normal course of its operating activities. There can be no assurance, however, that the Company will not be required to incur
significant costs to comply with environmental laws and regulations in the future or that its operations, business or assets will not be materially adversely affected by current or
future environmental laws or regulations.

Employees

As at December 31, 2019, we employed 31 full-time persons and two part-time persons in research and drug development and administration activities. Seven of our employees
hold Ph.Ds. and numerous others hold degrees and designations such as MD, MSc, BSc, CPA (CA), CPA (California) and MBA. To encourage a focus on achieving long-term
performance,  employees  and  members  of  the  board  of  directors  of  the  Company  (the  “Board”)  have  the  ability  to  acquire  an  ownership  interest  in  the  Company  through
Aptose’s share option and alternate compensation plans. Of note, in January of 2020, Aptose hired a Chief Medical Officer holding an MD and a PhD.

10

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The business of the Company requires personnel with specialized skills and knowledge in oncology. Researchers must be able to design and implement studies to assess the
efficacy  of  anticancer  drugs.  Specialized  knowledge  and  skills  relating  to  chemistry  and  formulation  process  development  are  also  needed.  Such  knowledge  and  skills  are
needed to develop product specific analytical methods and formulation processes. The Company’s business also requires clinical and regulatory expertise and knowledge. The
Company has trained scientists and personnel with broad experience in these fields.

None of our employees are unionized, and we consider our relations with our employees to be good.

Government Regulation

Overview

Our overall regulatory strategy is to work with the appropriate government departments which regulate the use and sale of therapeutic drug products. This includes the FDA in
the United States, Health Canada in Canada, the European Medicines Agency in Europe, and other local regulatory agencies with oversight of preclinical studies, clinical trials
and marketing of therapeutic products. Where possible, we intend to take advantage of opportunities for accelerated development of drugs designed to treat rare and serious or
life-threatening diseases. We also intend to pursue priority evaluation of any application for marketing approval filed in Canada, the United States or the European Union and to
file additional drug applications in other markets where commercial opportunities exist. We may not be able to pursue these opportunities successfully.

Regulation(s) by government authorities in the United States, Canada, and the European Union are significant factors in guiding our current research and drug development
activities. To clinically test, manufacture and market drug products for therapeutic use, we must be in compliance with guidance and regulations established by the regulatory
agencies in the countries in which we currently operate or intend to operate.

The  laws  of  most  of  these  countries  require  the  licensing  of  manufacturing  facilities,  carefully  controlled  research  and  the  extensive  testing  of  products.  Biotechnology
companies must establish the safety and efficacy of their new products in clinical trials; they must establish and comply with cGMPs for the manufacturing of the product and
control over marketing activities before being allowed to market a product. The safety and efficacy of a new drug must be shown through human clinical trials of the drug
carried out in accordance with the guidance and regulations established by local and federal regulatory agencies.

The process of completing clinical trials and obtaining regulatory approval for a new drug takes a number of years and requires the expenditure of substantial resources. Once a
new drug or product license application is submitted, regulatory agencies may not review the application in a timely manner and may not approve the product. Even after a New
Drug  Application  (“NDA”)  submission  has  occurred  and/or  approval  has  been  obtained,  further  studies,  including  post-marketing  studies,  may  be  required  to  provide
additional data on the efficacy and safety necessary to confirm the approved indication or to gain approval for the use of the new drug as a treatment for clinical indications other
than those for which the new drug was initially tested. Also, regulatory agencies require post-marketing surveillance programs to monitor a new drug’s side effects, safety and
long-term effects of the product. A serious safety or effectiveness problem involving an approved new drug may result in a regulatory agency mandating a withdrawal of the
new drug from the market and possible civil action. It is possible that we could encounter such difficulties or excessive costs in our efforts to secure necessary approvals, which
could delay or prevent us from manufacturing or marketing our products.

In addition to the regulatory product approval framework, biotechnology companies, including Aptose, are subject to regulation under local, provincial, state and federal law,
including requirements regarding occupational safety, laboratory practices, environmental protection and hazardous substance control, and may be subject to other present and
future local, provincial, state, federal and foreign regulation, including possible future regulation of the biotechnology industry.

Approval of New Drugs in Canada

In Canada, the manufacture and sale of new drugs are controlled by Health Canada. New drugs must pass through a number of testing stages, including pre-clinical testing and
human clinical trials. Pre-clinical testing involves testing the new drug’s chemistry, pharmacology and toxicology in vitro and in vivo. Successful results (that is, potentially
valuable pharmacological activity combined with an acceptable low level of toxicity) enable the developer of the new drug to file a clinical trial application to begin clinical
trials involving humans.

To study a drug in Canadian patients, a clinical trial application submission must be filed with Health Canada. The clinical trial application submission must contain specified
information,  including  the  results  of  the  pre-clinical  tests  completed  at  the  time  of  the  submission  and  any  available  information  regarding  use  of  the  drug  in  humans.  In
addition, since the method of manufacture may affect the efficacy and safety of a new drug, information on manufacturing methods and standards and the stability of the drug
substance and dosage form must be presented. Production methods and quality control procedures must be in place to ensure an acceptably pure product, essentially free of
contamination, and to ensure uniformity with respect to all quality aspects.

11

 
 
 
 
 
 
 
 
 
 
 
 
 
In addition, all federally regulated trials must be approved and monitored by an independent committee of doctors, scientists, advocates and others to ensure safety and ethical
standards.  These  committees  are  called  Institutional  Review  Boards  (IRBs)  or  Ethics  Review  Boards  (“ERBs”).  The  review  boards  study  and  approve  all  study-related
documents before a clinical trial begins and also carefully monitor data to detect benefit or harm, and validity of results.

Provided Health Canada does not reject a clinical trial application submission and IRB or ERB approval has been obtained, clinical trials can begin. Clinical trials for product
candidates in Canada, as in the United States, are generally carried out in three phases. Phase I involves studies to evaluate toxicity and ideal dose levels in healthy humans. The
new drug is administered to human patients who have met the clinical trial entry criteria to determine pharmacokinetics, human tolerance and prevalence of any adverse side
effects. Phases II and III involve therapeutic studies. In Phase II, efficacy, dosage, side effects and safety are established in a small number of patients who have the disease or
disorder that the new drug is intended to treat. In Phase III, there are controlled clinical trials in which the new drug is administered to a large number of patients who are likely
to receive benefit from the new drug. In Phase III, the effectiveness of the new drug in patients is compared to that of standard accepted methods of treatment in order to provide
sufficient data for the statistical proof of safety and efficacy for the new drug.

If clinical studies establish that a new drug has value, the manufacturer submits a new drug submission application to Health Canada for marketing approval. The new drug
submission contains all information known about the new drug, including the results of pre-clinical testing and clinical trials. Information about a substance contained in new
drug submission includes its proper name, its chemical name, and details on its method of manufacturing and purification, and its biological, pharmacological and toxicological
properties. The new drug submission also provides information about the dosage form of the new drug, including a quantitative listing of all ingredients used in its formulation,
its method of manufacture, manufacturing facility information, packaging and labelling, the results of stability tests, and its diagnostic or therapeutic claims and side effects, as
well as details of the clinical trials to support the safety and efficacy of the new drug. Furthermore, for biological products, an on-site evaluation is completed to assess the
production process and manufacturing facility. It is required prior to the issuance of a notice of compliance. All aspects of the new drug submission are critically reviewed by
Health  Canada.  If  a  new  drug  submission  is  found  satisfactory,  a  notice  of  compliance  is  issued  permitting  the  new  drug  to  be  sold  for  the  approved  use.  In  Canada,  an
establishment license must be obtained prior to marketing the product.

Health Canada has a policy of priority evaluation of new drug submissions for all drugs intended for serious or life-threatening diseases for which no drug product has received
regulatory approval in Canada and for which there is reasonable scientific evidence to indicate that the proposed new drug is safe and may provide effective treatment.

An exception to the foregoing requirements relating to the manufacture and sale of a new drug is the limited authorization that may be available in respect of the sale of new
drugs for emergency treatment. Under the special access program, Health Canada may authorize the sale of a quantity of a new drug for human use to a specific practitioner for
the emergency treatment of a patient under the practitioner’s care. Prior to authorization, the practitioner must supply Health Canada with information concerning the medical
emergency for which the new drug is required, such data as is in the possession of the practitioner with respect to the use, safety and efficacy of the new drug, the names of the
institutions at which the new drug is to be used and such other information as may be requested by Health Canada. In addition, the practitioner must agree to report to both the
drug manufacturer and Health Canada the results of the new drug’s use in the medical emergency, including information concerning adverse reactions, and must account to
Health Canada for all quantities of the new drug made available.

The  Canadian  regulatory  approval  requirements  for  new  drugs  outlined  above  are  similar  to  those  of  other  major  pharmaceutical  markets.  While  the  testing  carried  out  in
Canada  is  often  acceptable  for  the  purposes  of  regulatory  submissions  in  other  countries,  individual  regulatory  authorities  may  request  supplementary  testing  during  their
assessment of any submission. Therefore, the clinical testing conducted under Health Canada authorization or the approval of regulatory authorities of other countries may not
be accepted by regulatory authorities outside Canada or other countries.

Approval of New Drugs in the United States

In  the  United  States,  the  FDA  controls  and  investigates  the  investigation,  manufacturing,  and  sale  of  new  drugs.  New  drugs  require  FDA  approval  of  a  NDA  prior  to
commercial sale. In the case of certain biological products, a Biological License Application (“BLA”) must be obtained prior to marketing and batch releasing. As in Canada, to
obtain marketing approval, data from adequate and well-controlled human clinical trials, demonstrating to the FDA’s satisfaction a new drug’s safety and effectiveness for its
intended use, are required. Data are generated in studies conducted pursuant to an IND submission, similar to that required for a clinical trial application in Canada. Clinical
trials  with  human  subjects  are  characterized  as  Phase  I,  Phase  II  and  Phase  III  trials  or  a  combination  thereof.  In  a  marketing  application,  the  manufacturer  must  also
demonstrate  the  identity,  potency,  quality  and  purity  of  the  active  ingredients  of  the  new  drug  involved,  and  the  stability  of  those  ingredients.  Further,  the  manufacturing
facilities, equipment, processes and quality controls for the new drug must comply with the FDA’s current cGMP regulations for drugs both in a pre-licensing inspection before
product licensing and in subsequent periodic inspections after licensing. An establishment license grants the sponsor permission to fabricate, package, label, distribute, import,
wholesale or test the newly approved drug.

12

 
 
 
 
 
 
 
 
 
Federally  regulated  trials  must  be  approved  and  monitored  by  an  independent  committee  of  doctors,  scientists,  advocates  and  others  to  ensure  safety  and  ethical  standards.
These committees are called IRBs or ERBs. The review boards study and approve all study-related documents before a clinical trial begins and also carefully monitor data to
detect benefit or harm, and validity of results.

Post-Approval Regulation

The monitoring of a new drug does not cease once it is on the market. For example, a manufacturer of a new drug must report any new information received concerning serious
side effects, as well as the failure of the new drug to produce desired effects. If Health Canada determines it to be in the interest of public health, a notice of compliance for a
new drug may be suspended and the new drug may be removed from the market.

A  post  surveillance  program  involves  clinical  trials  conducted  after  a  drug  is  marketed  (referred  to  as  Phase  IV  studies  in  the  United  States)  and  is  an  important  source  of
information on as yet undetected adverse outcomes, especially in populations that may not have been involved in the premarketing trials (e.g., children, the elderly, pregnant
women) and the drug’s long-term morbidity and mortality profile. Regulatory authorities may require companies to conduct Phase IV studies as a condition of market approval.
Companies often conduct post-marketing studies in the absence of a regulatory mandate.

The  foregoing  description  is  a  brief  summary  of  the  requirements  for  a  new  drug  to  be  approved  for  marketing  in  North America.  The  European  Medicines Agency  and
Japanese Pharmaceuticals and Medical Devices Agency are also important regulatory authorities in drug development. Together with the FDA, they are the three International
Conference on Harmonization parties which oversee the three largest markets for drug sales.

Information About Our Executive Officers

Aptose’s  leadership  team  comprises  accomplished  industry,  financial  and  clinical  research  professionals  who  are  dedicated  to  building  a  comprehensive  anticancer  drug
pipeline  and  clinical  development  programs  focused  on  targeted  therapeutics  directed  against  dysregulated  oncogenic  processes  in  patients  with  life.  The  team  includes  our
Chairman and Chief Executive Officer, our Chief Financial Officer, our Chief Business Officer and our Chief Medical Officer.

Dr. William G. Rice, age 61, joined Aptose as Chairman, President and Chief Executive Officer in October 2013. Prior to joining Aptose, Dr. Rice served as the President,
Chief Executive Officer and Chairman of the board of Cylene Pharmaceuticals, Inc., a private biotechnology company (“Cylene”) from 2003 to 2013. Prior to Cylene, Dr. Rice
was the founder, President, Chief Executive Officer and Director of Achillion Pharmaceuticals, Inc. from 1998 to 2003. He also served as Senior Scientist and Head of the Drug
Mechanism Laboratory at the National Cancer Institute-Frederick Cancer Research and Development Center from 1992 to 1998, and served as a faculty member in the division
of  Pediatric  Hematology  and  Oncology  at  Emory  University  School  of  Medicine  from  1989  to  1992.  Dr.  Rice  received  his  Ph.D.  from  Emory  University  Department  of
Biochemistry. He continues to serve as the Chairman of the board of Cylene and is a member of the board of directors of Oncolytics Biotech Inc. since 2015.

Gregory K. Chow, age 47, joined Aptose as Senior Vice President and Chief Financial Officer in December 2013. Previously, Mr. Chow served as Managing Director, Director
of Private Placements at Wedbush Securities from 2012 to 2013, where he led the private placement capital activities within the Life Sciences Investment Banking Group. Prior
to joining Wedbush, he was a Director in the Private Placements / Equity Capital Markets Group at RBC Capital Markets from 2006 to 2011, where he led life science private
capital activities. From 2003 to 2006, he led the Private Capital Group at Wells Fargo Securities and was a Senior Auditor at BDO Seidman, LLP in their Century City, CA
office. Mr. Chow is a Certified Public Accountant (inactive) in the State of California. Mr. Chow received his MBA in Finance from The Wharton School at the University of
Pennsylvania, and his BA in Business Economics with an emphasis in Accounting from the University of California, Santa Barbara.

Dr. Jotin Marango, age 41, joined Aptose as Senior Vice President and Chief Business Officer in June 2019. Prior to joining Aptose, from 2017 to 2019, Dr. Marango was a
managing director and senior research analyst at Roth Capital Partners covering biotechnology and therapeutics. Dr. Marango joined Roth from H.C. Wainwright & Co., where
he worked from 2015 to 2017 and covered hematology, oncology, and pulmonary therapeutics, with a focus on epigenetic and molecularly targeted therapies. Dr. Marango
began his career in equity research with Collins Stewart/Canaccord Genuity in 2010. Previously, Dr. Marango also served as Chief Operating Officer at the Samuel Waxman
Cancer Research Foundation from 2012 to 2015, where he oversaw academic collaborations in  translational  therapeutics,  as  well  as  venture  philanthropy  initiatives  in  drug
development.  Dr.  Marango  studied  theoretical  chemistry  and  classical  literature  at  Harvard  University  and  later  received  his  M.D.  and  Ph.D.  degrees  from  the  Mount  Sinai
School of Medicine in New York.

13

 
 
 
 
 
 
 
  
 
 
 
Dr. Rafael Bejar, M.D, Ph.D., age 48, joined Aptose as Senior Vice President and Chief Medical Officer in January 2020. Dr. Bejar is an internationally recognized physician
scientist  with  extensive  research  and  clinical  experience  in  the  area  of  hematologic  malignancies.  Dr.  Bejar  joined Aptose  from  UC  San  Diego  (“UCSD”)  where  he  began
working  in  2012.  He  continues  to  serve  at  UCSD  as  an  Associate  Professor  of  Clinical  Medicine,  caring  for  patients  and  maintaining  a  research  laboratory  focused  on
translational studies of myeloid malignancies. At UCSD, he founded the MDS Center of Excellence and led the Hematology Disease Team from 2017 to 2019. There he has
directed  several  clinical  studies  and  served  as  an  advisor  for  numerous  companies  including  Celgene,  Takeda, AbbVie, Astex,  Genoptix,  Forty  Seven,  PersImmune,  and
Daiichi-Sankyo. Outside UCSD, Dr. Bejar sits on the Scientific Advisory Board for the MDS Foundation, is a prior member of the National Comprehensive Cancer Network
Guidelines Committee, and  has  led  projects  for  the  International  Working  Group  for  MDS.  He  is  frequently  invited  to  speak  at  national  and  international  meetings  and  has
published articles in a variety of journals including The New England Journal of Medicine, Journal of Clinical Oncology, Leukemia, Blood, and Blood Advances. Dr. Bejar has
been board certified in Hematology and Oncology since completing his fellowship at the Dana-Farber Cancer Institute. He completed his internship in Internal Medicine at the
University  of  Chicago  followed  by  his  residency  at  the  Brigham  and  Women’s  Hospital  in  Boston  where  he  later  served  a  Medical  Chief  Resident  and  an  Instructor  in
Hematology. He holds an MD degree and Neuroscience PhD from UCSD and a BS in Physics from MIT.

Corporate Information

Aptose is a publicly traded company incorporated pursuant to the Canada Business Corporations Act, or CBCA. Our headquarters are located at 251 Consumers Road, Suite
1105  Toronto,  Ontario,  Canada  M2J  4R3  (telephone:  647-479-9828),  and  our  executive  offices  are  located  at  12770  High  Bluff  Drive,  Suite  120,  San  Diego,  CA  92130
(telephone: 858-926-2730).

We file annual, quarterly, current reports, proxy statements and other information with the Securities and Exchange Commission (the “SEC”). The SEC maintains an Internet
site that contains our public filings and other information regarding the Company, at www.sec.gov. We are also a reporting issuer under the securities laws of the Province of
Ontario in Canada. We make these reports available free of charge at our website http://www.aptose.com (under the “Investors — Financial Information” caption).

Prior to December 31, 2018, Aptose was a foreign private issuer, and in compliance with SEC regulations, filed its Quarterly reports on Form 6-Ks, and its Annual Reports on
either Forms F-20 or F-40. These reports were made available on our website as soon as reasonably practicable after their filing with, or furnishing to, the SEC. We are also a
reporting issuer under the securities laws of the Province of Ontario in Canada.

Cautionary Note Regarding Forward-Looking Statements

This Annual Report on Form 10-K contains forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995 and “forward-
looking information” within the meaning of applicable Canadian securities law. We refer to such forward-looking statements and forward-looking information collectively as
“forward-looking statements”. These statements relate to future events or future performance and reflect our expectations and assumptions regarding our growth, results of
operations, performance and business prospects and opportunities. Such forward-looking statements reflect our current beliefs and are based on information currently available
to us. In some cases, forward-looking statements can be identified by terminology such as “may”, “would”, “could”, “will”, “should”, “expect”, “plan”, “intend”, “anticipate”,
“believe”, “estimate”, “predict”, “potential”, “continue” or the negative of these terms or other similar expressions concerning matters that are not historical facts. The forward-
looking statements in this Annual Report on Form 10-K include, among others, statements regarding our future operating results, economic performance and product
development efforts and statements in respect of:

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our ability to obtain the substantial capital we require to fund research and operations;
our business strategy;
our clinical development plans;
our plans to conduct clinical trials and preclinical programs;
our ability to accrue appropriate numbers and types of patients;
our reliance on external contract research/manufacturing organizations for certain activities;
our plans to secure and maintain strategic partnerships to assist in the further development of our product candidates and to build our pipeline;
our ability to file and maintain intellectual property to protect our pharmaceutical assets;
potential exposure to legal actions and potential need to take action against other entities;
our expectations regarding the progress and the successful and timely completion of the various stages of our drug discovery, drug synthesis and formulation,
preclinical and clinical studies and the regulatory approval process;
our plans, objectives, expectations and intentions; and

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other statements including words such as “anticipate”, “contemplate”, “continue”, “believe”, “plan”, “estimate”, “expect”, “intend”, “will”, “should”, “may”,
and other similar expressions.

The forward-looking statements contained in this Annual Report on Form 10-K reflect our current views with respect to future events, are subject to significant risks and
uncertainties, and are based upon a number of estimates and assumptions that, while considered reasonable by us, are inherently subject to significant business, economic,
competitive, political and social uncertainties and contingencies. Many factors could cause our actual results, performance or achievements to be materially different from any
future results, performance, or achievements that may be expressed or implied by such forward-looking statements, including, among others:

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our lack of product revenues and net losses and a history of operating losses;
our early stage of development, particularly the inherent risks and uncertainties associated with (i) developing new drug candidates generally,
(ii) demonstrating the safety and efficacy of these drug candidates in clinical studies in humans, and (iii) obtaining regulatory approval to commercialize these
drug candidates;
our need to raise substantial additional capital in the future and that we may be unable to raise such funds when needed and on acceptable terms;
further equity financing, which may substantially dilute the interests of our existing shareholders;
clinical studies and regulatory approvals of our drug candidates are subject to delays, and may not be completed or granted on expected timetables, if at all, and
such delays may increase our costs and could substantially harm our business;
our reliance on external contract research/manufacturing organizations for certain activities and if we are subject to quality, cost, or delivery issues with the
preclinical and clinical grade materials supplied by contract manufacturers, our business operations could suffer significant harm;
clinical studies are long, expensive and uncertain processes and the FDA, or other similar foreign regulatory agencies that we are required to report to, may
ultimately not approve any of our product candidates;
our ability to comply with applicable governmental regulations and standards;
our inability to achieve our projected development goals in the time frames we announce and expect;
difficulties in enrolling patients for clinical trials may lead to delays or cancellations of our clinical trials;
our reliance on third-parties to conduct and monitor our preclinical studies;
our ability to attract and retain key personnel, including key executives and scientists;
any misconduct or improper activities by our employees;
our exposure to exchange rate risk;
our ability to commercialize our business attributed to negative results from clinical trials;
the marketplace may not accept our products or product candidates due to the intense competition and technological change in the biotechnical and
pharmaceuticals, and we may not be able to compete successfully against other companies in our industries and achieve profitability;
our ability to obtain and maintain patent protection;
our ability to afford substantial costs incurred with defending our intellectual property;
our ability to protect our intellectual property rights and not infringe on the intellectual property rights of others;
our business is subject to potential product liability and other claims;
potential exposure to legal actions and potential need to take action against other entities;
commercialization limitations imposed by intellectual property rights owned or controlled by third parties;
our ability to maintain adequate insurance at acceptable costs;
our ability to find and enter into agreements with potential partners;
extensive government regulation;
data security incidents and privacy breaches could result in increased costs and reputational harm;
our share price has been and is likely to continue to be volatile;
future sales of our Common Shares by us or by our existing shareholders could cause our share price to drop;
changing global market and financial conditions;
changes in an active trading market in our Common Shares;
difficulties by non-Canadian investors to obtain and enforce judgments against us because of our Canadian incorporation and presence;
potential adverse U.S. federal tax consequences for U.S. shareholders because we are a “passive foreign investment company”;
our “emerging growth company” and “smaller reporting company” status;
any failures to maintain an effective system of internal controls may result in material misstatements of our financial statements, or cause us to fail to meet our
reporting obligations or fail to prevent fraud;

15

 
 
 
 
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our broad discretion in how we use the proceeds of the Common Shares issued pursuant to the two confidentially marketed public offerings completed in the
year ended December 31, 2019, and from the sale of the Common Shares to Aspire Capital pursuant to the purchase agreements between us and Aspire;
our ability to expand our business through the acquisition of companies or businesses; and
other risks detailed from time-to-time in our on-going filings with the SEC and Canadian securities regulators, and those which are discussed in Item 1A. Risk
Factors in this Annual Report on Form 10-K.

Should one or more of these risks or uncertainties materialize, or should the assumptions described in the Item 1A. Risk Factors in this Annual Report on Form 10-K underlying
those forward-looking statements prove incorrect, actual results may vary materially from those described in the forward-looking statements.

More detailed information about these and other factors is included in this Annual Report on Form 10-K under Item 1A. Risk Factors. Although we have attempted to identify
factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions,
events or results not to be as anticipated, estimated or intended. Forward-looking statements are based upon our beliefs, estimates and opinions at the time they are made and we
undertake no obligation to update forward-looking statements if these beliefs, estimates and opinions or circumstances should change, except as required by applicable law.
There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such
statements. Accordingly, readers should not place undue reliance on forward-looking statements.

Forward-looking statements contained in this Annual Report on Form 10-K are made as of the date of this Annual Report on Form 10-K.

Except as required under applicable securities legislation, we undertake no obligation to publicly update or revise forward-looking statements, whether as a result of new
information, future events or otherwise. We qualify all the forward-looking statements contained in this Annual Report on Form 10-K by the foregoing cautionary
statements.

 ITEM 1A. RISK FACTORS

Risk Factors and Uncertainties

Any of the risks and uncertainties described below could significantly and negatively affect our business, prospects, financial condition, operating results, or credit ratings,
which could cause the trading price of our Common Shares to decline. Additional risks and uncertainties not presently known to us, or risks that we currently consider
immaterial, could also impair our business operations or financial condition. The following discussion of risk factors contains “forward-looking” statements, as discussed above.

Risks Related to our Business

We are an early stage development company with no significant revenues from product sales.

We are at an early stage of development. In the past five years, none of our potential products has obtained regulatory approval for commercial use and sale in any country and
as  such,  no  significant  revenues  have  resulted  from  product  sales.  Significant  additional  investment  will  be  necessary  to  complete  the  development  of  any  of  our  product
candidates. Preclinical and clinical trial work must be completed before our potential products could be ready for use within the markets that we have identified. We may fail to
develop  any  products,  obtain  regulatory  approvals,  enter  clinical  trials  or  commercialize  any  products.  We  do  not  know  whether  any  of  our  potential  product  development
efforts will prove to be effective, meet applicable regulatory standards, obtain the requisite regulatory approvals, be capable of being manufactured at a reasonable cost or be
accepted in the marketplace. We also do not know whether sales, license fees or related royalties will allow us to recoup any investment we make in the commercialization of
our products.

The product candidates we are currently developing are not expected to be commercially viable for at least the next several years and we may encounter unforeseen difficulties
or delays in commercializing our product candidates. In addition, our potential products may not be effective or may cause undesirable side effects.

Our  product  candidates  require  significant  funding  to  reach  regulatory  approval  assuming  positive  clinical  results.  For  example,  our  product  candidate APTO-253  began
enrollment  in  a  Phase  Ib  clinical  trial  in  patients  with  relapsed  or  refractory AML  and  high  risk  MDS  and  was  placed  on  clinical  hold  by  the  FDA  following  a  voluntary
suspension of dosing by us. That hold has been lifted, but significant additional funding will be necessary to complete the restarted Phase Ib clinical and, if required, Phase II or
Phase III clinical trials. Similarly, we have received FDA approval to initiate a Phase I clinical trial with our product candidate CG-806 for patients with B-cell malignancies.
Significant additional capital will be necessary to complete the Phase I clinical trial, and if required, Phase II or Phase III clinical trials. Such funding for our product candidates
may be difficult, or impossible to raise in the public or private markets or through partnerships. If funding or partnerships are not readily attainable, the development of our
product candidates may be significantly delayed or stopped altogether. The announcement of a delay or discontinuation of development would likely have a negative impact on
our share price.

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We need to raise additional capital.

We  have  an  ongoing  need  to  raise  additional  capital.  To  obtain  the  necessary  capital,  we  must  rely  on  some  or  all  of  the  following:  additional  share  issues,  debt  issuances
(including  promissory  notes),  collaboration  agreements  or  corporate  partnerships  and  grants  and  tax  credits  to  provide  full  or  partial  funding  for  our  activities. Additional
funding may not be available on terms that are acceptable to us or in amounts that will enable us to carry out our business plan.

Our need for capital may require us to:

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engage in equity financings that could result in significant dilution to existing investors;

delay or reduce the scope of or eliminate one or more of our development programs;

obtain funds through arrangements with collaborators or others that may require us to relinquish rights to technologies, product candidates or products that we
would otherwise seek to develop or commercialize ourselves;

license rights to technologies, product candidates or products on terms that are less favorable to us than might otherwise be available;

considerably reduce operations; or

cease our operations.

We have a history of operating losses. We expect to incur net losses and we may never achieve or maintain profitability.

We have not been profitable since our inception in 1986. We reported net losses of $26.3 million in the fiscal year ended December 31, 2019, $28.8 million in the fiscal year
ended December 31, 2018, and $11.7 million in the fiscal year ended December 31, 2017, and as of December 31, 2019, we had an accumulated deficit of $301.9 million.

We have not generated any significant revenue to date and it is possible that we will never have sufficient product sales revenue (if any) to achieve profitability. We expect to
continue  to  incur  losses  for  at  least  the  next  several  years  as  we  or  our  collaborators  and  licensees  pursue  clinical  trials  and  research  and  development  efforts.  To  become
profitable, we, either alone or with our collaborators and licensees, must successfully develop, manufacture and market our current product candidates APTO-253 or CG-806,
as well as continue to identify, develop, manufacture and market new product candidates. It is possible that we will never have significant product sales revenue or receive
royalties on our licensed product candidates. If funding is insufficient at any time in the future, we may not be able to develop or commercialize our products, take advantage of
business opportunities or respond to competitive pressures.

We currently do not earn any revenues from our drug candidates and are therefore considered to be in the development stage. The continuation of our research and development
activities and the commercialization of the targeted therapeutic products are dependent upon our  ability  to  successfully  finance  and  complete  our  research  and  development
programs through a combination of equity financing and payments from strategic partners. We have no current sources of significant payments from strategic partners.

We heavily rely on the capabilities and experience of our key executives and scientists and the loss of any of them could affect our ability to develop our products.

The loss of our executive officers could harm our operations and our ability to achieve strategic objectives. While we have employment agreements with our executive officers,
such employment agreements do not guarantee their retention. We also depend on our scientific and clinical collaborators and advisors, all of whom have outside commitments
that may limit their availability to us. In addition, we believe that our future success will depend in large part upon our ability to attract and retain highly skilled scientific,
managerial,  medical,  clinical  and  regulatory  personnel,  particularly  as  we  expand  our  activities  and  seek  regulatory  approvals  for  clinical  trials.  We  routinely  enter  into
consulting agreements with our scientific and clinical collaborators and advisors, key opinion leaders and academic partners in the ordinary course of our business. We also
enter  into  contractual  agreements  with  physicians  and  institutions  who  will  recruit  patients  into  our  clinical  trials  on  our  behalf  in  the  ordinary  course  of  our  business.
Notwithstanding these arrangements, we face significant competition for these types of personnel from other companies, research and academic institutions, government entities
and other organizations. We cannot predict our success in hiring or retaining the personnel we require for continued growth. The loss of the services of any of our executive
officers or other key personnel could potentially harm our business, operating results or financial condition.

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Our employees may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which could have a material
adverse effect on our business.

We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees could include failures to comply with FDA/Health Canada regulations, provide
accurate information to the FDA/Health Canada, comply with manufacturing standards we have established, comply with federal, state and provincial health-care fraud and
abuse laws and regulations, report financial information or data accurately or disclose unauthorized activities to us. In particular, sales, marketing and business arrangements in
the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, kickbacks, self-dealing and other abusive practices. These laws and regulations
may  restrict  or  prohibit  a  wide  range  of  pricing,  discounting,  marketing  and  promotion,  sales  commission,  customer  incentive  programs  and  other  business  arrangements.
Employee misconduct could also involve the improper use of information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm to
our  reputation.  If  any  such  actions  are  instituted  against  us,  and  we  are  not  successful  in  defending  ourselves  or  asserting  our  rights,  those  actions  could  have  a  substantial
impact on our business and results of operations, including the imposition of substantial fines or other sanctions.

We have no sales, marketing or distribution experience and would have to invest significant financial and management resources to establish these capabilities.

We have no sales, marketing or distribution experience. We currently expect to rely heavily on third parties to launch and market our products, if they approved. However, if we
elect to develop internal sales, distribution and marketing capabilities, we will need to invest significant financial and management resources. For products where we decide to
perform sales, marketing and distribution functions ourselves, we could face a number of additional risks, including: 

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we may not be able to attract and build a significant marketing or sales force;

the cost of establishing a marketing or sales force may not be justifiable in light of the revenues generated by any particular product; and

our direct sales and marketing efforts may not be successful.

If we are unable to develop our own sales, marketing and distribution capabilities, we will not be able to successfully commercialize our products without reliance on third
parties.

We may expand our business through the acquisition of companies or businesses or by entering into collaborations or by in-licensing product candidates, each of which
could disrupt our business and harm our financial condition.

We may in the future seek to expand our pipeline and capabilities by acquiring one or more companies or businesses, entering into collaborations or in-licensing one or more
product candidates. For example, in June 2016, we entered into a definitive agreement with CG, granting Aptose an exclusive option to research, develop and commercialize
CG-806 in all countries of the world except Korea, for all fields of use.

Acquisitions, collaborations and in-licenses involve numerous risks, including, but not limited to:

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substantial cash expenditures;

technology development risks;

potentially dilutive issuances of equity securities;

incurrence of debt and contingent liabilities, some of which may be difficult or impossible to identify at the time of acquisition;

difficulties in assimilating the operations of the acquired companies;

potential disputes regarding contingent consideration;

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diverting our management’s attention away from other business concerns;

entering markets in which we have limited or no direct experience;

potential loss of our key employees or key employees of the acquired companies or businesses; and

failure of the in-licenses agents or technologies to deliver the desired activities or functions.

We have experience in entering collaborations and in-licensing product candidates; however, we cannot provide assurance that any acquisition, collaboration or in-license will
result in short-term or long-term benefits to us. We may incorrectly judge the value or worth of an acquired company or business or in-licensed product candidate. In addition,
our future success would depend in part on our ability to manage the rapid growth associated with some of these acquisitions, collaborations and in-licenses. We cannot assure
you  that  we  would  be  able  to  successfully  combine  our  business  with  that  of  acquired  businesses,  manage  a  collaboration  or  integrate  in-licensed  product  candidates.
Furthermore, the development or expansion of our business may require a substantial capital investment by us.

Fluctuations in exchange rates can cause us to incur losses.

We may be exposed to fluctuations of the United States dollar against certain other currencies because we hold most of our cash and cash equivalents in United States dollars,
while we incur some of our expenses in foreign currencies, primarily the Canadian dollar. Fluctuations in the value of currencies could cause us to incur currency exchange
losses, and we do not currently employ a hedging strategy against exchange rate risk. As a result, changes in the exchange rate between the Canadian dollar and the U.S. dollar
could materially impact our reported results of operations and distort period to period comparisons. In particular, to the extent that foreign currency-denominated (i.e., non-U.S.
dollar) monetary assets do not equal the amount of our foreign currency denominated monetary liabilities, foreign currency gains or losses could arise and materially impact our
financial statements. As a result of such foreign currency fluctuations, it could be more difficult to detect underlying trends in our business and results of operations. In addition,
to the extent that fluctuations in currency exchange rates cause our results of operations to differ from our expectations or the expectations of our investors, the trading price of
our Common Shares could be adversely affected.

Risks Related to Development, Clinical Testing and Regulatory Approval of Our Product Candidates

Clinical  trials  are  long,  expensive  and  uncertain  processes  and  the  FDA  or  Health  Canada  may  ultimately  not  approve  any  of  our  product  candidates.  We  may  never
develop any commercial drugs or other products that generate revenues.

In the past five years, none of our product candidates has received regulatory approval for commercial use and sale in North America.  We  cannot  market  a  pharmaceutical
product in any jurisdiction until it has completed thorough preclinical testing and clinical trials in addition to that jurisdiction’s extensive regulatory approval process. Approval
in one country does not assure approval in another country. In general, significant research and development and clinical studies are required to demonstrate the safety and
effectiveness of our product candidates before we can submit any applications for regulatory approval.

Clinical trials are long, expensive and uncertain processes. Clinical trials may not start or be on schedule and the FDA or Health Canada or any other regulatory body may not
ultimately approve our product candidates for commercial sale in the relevant territory. The clinical trials of any of our drug candidates could be unsuccessful, which would
prevent us from advancing, commercializing or partnering the drug.

Even if the results of our preclinical studies or clinical trials are initially positive, it is possible that we will obtain different results in the later stages of drug development or that
results seen in clinical trials will not continue with longer term treatment. Positive results in Phase I clinical trials may not necessarily repeat in larger Phase II or Phase III
clinical trials.

Our  preclinical  studies  and  clinical  trials  may  not  generate  positive  results  that  will  allow  us  to  move  towards  the  commercial  use  and  sale  of  our  product  candidates.
Furthermore, negative preclinical or clinical trial results may cause our business, financial condition, or results of operations to be materially adversely affected. For example,
our Phase Ib clinical trial of APTO-253 in patients with relapsed or refractory AML and high risk MDS was placed on clinical hold by the FDA in November 2015. Those short
comings of the drug product were addressed and the clinical hold was lifted. However, there can be no assurance that the Company will have the resources, or that we will
decide, to continue the development of APTO-253. There is a long development path ahead that will take many years to complete the development and is prone to the risks of
failure  or  delays  inherent  in  drug  development.  Likewise,  our  CG-806  product  candidate  is  currently  being  evaluated  in  a  Phase  Ia/b  study  for  patients  having  B-cell
malignancies, and it is expected to undergo many years of testing and regulatory examinations prior to any potential regulatory approvals.

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Preparing,  submitting  and  advancing  applications  for  regulatory  approval  of  products  is  complex,  expensive  and  time  intensive  and  entails  significant  uncertainty.  A
commitment of substantial resources to conduct time-consuming research, preclinical studies and clinical trials is required if we are to complete development of our products.

Clinical  trials  of  our  products  require  that  we  identify  and  enroll  a  large  number  of  patients  with  the  illness  under  investigation.  We  may  not  be  able  to  enroll  a  sufficient
number of appropriate patients to complete our clinical trials in a timely manner, particularly in smaller indications and indications where there is significant competition for
patients. If we experience difficulty in enrolling a sufficient number of patients to conduct our clinical trials, we may need to delay or terminate ongoing clinical trials and will
not accomplish objectives material to our success. Delays in planned patient enrollment or lower than anticipated event rates in our current clinical trials or future clinical trials
also may result in increased costs, program delays, or both.

In addition, unacceptable toxicities or adverse side effects may occur at any time in the course of preclinical studies or human clinical trials or, if any product candidates are
successfully developed and approved for marketing, during commercial use of any approved products. The appearance of any unacceptable toxicities or adverse side effects
could interrupt, limit, delay or abort the development of any of our product candidates or, if previously approved, necessitate their withdrawal from the market. Furthermore,
disease resistance or other unforeseen factors may limit the effectiveness of our potential products.

Our failure to develop safe and commercially viable drugs would substantially impair our ability to generate revenues and sustain our operations and would materially harm our
business and adversely affect our share price.

We may not achieve our projected development goals in the time frames we announce and expect.

We  set  goals  for,  and  make  public  statements  regarding,  the  expected  timing  of  the  accomplishment  of  objectives  material  to  our  success,  such  as  the  commencement  and
completion of clinical trials, the submission of a drug-regulatory application, and the expected costs to develop our product candidates. The actual timing and costs of these
events can vary dramatically due to factors within and beyond our control, such as delays or failures in our IND submissions or clinical trials, issues related to the manufacturing
of drug supply, uncertainties inherent in the regulatory approval process, market conditions and interest by partners in our product candidates among other things. Our clinical
trials may not be completed, we may not make regulatory submissions or receive regulatory approvals as planned; or we may not secure partnerships for any of our product
candidates. Any  failure  to  achieve  one  or  more  of  these  milestones  as  planned  would  have  a  material  adverse  effect  on  our  business,  financial  condition  and  results  of
operations.

Delays in clinical testing could result in delays in commercializing our product candidates and our business may be substantially harmed.

We cannot predict whether any clinical trials will begin as planned, will need to be restructured or will be completed on schedule, if at all. Our product development costs will
increase if we experience delays in clinical testing. Significant clinical trial delays could shorten any periods during which we may have the exclusive right to commercialize our
product candidates or allow our competitors to bring products to market before us, which would impair our ability to successfully commercialize our product candidates and
may harm our financial condition, results of operations and prospects. The recommencement and completion of clinical trials for our products, including the APTO-253 phase
Ib clinical trial, the phase Ia/b clinical trial for CG-806 study for the treatment of patients having B-cell malignancies, and the IND acceptance of our planned Phase I study for
the development of CG-806 for the treatment of patients with relapsed/refractory acute myeloid leukemia (“R/R AML”) may be delayed for a number of reasons, including
delays related, but not limited, to:.

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failure by regulatory authorities to grant permission to proceed with a clinical trial;

a regulatory decision to place or placing the clinical trial on hold;

patients failing to enroll or remain in our trials at the rate we expect;

suspension or termination of clinical trials by regulators for many reasons, including concerns about patient safety or failure of our contract manufacturers to
comply with cGMP requirements;

any changes to our manufacturing process that may be necessary or desired;

delays or failure to obtain GMP-grade clinical supply from contract manufacturers of our products necessary to conduct clinical trials;

product candidates demonstrating a lack of safety or efficacy during clinical trials;

patients choosing an alternative treatment for the indications for which we are developing any of our product candidates or participating in competing clinical
trials;

patients failing to complete clinical trials due to dissatisfaction with the treatment, side effects or other reasons;

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reports of clinical testing on similar technologies and products raising safety and/or efficacy concerns;

competing clinical trials and scheduling conflicts with participating clinicians;

clinical investigators not performing our clinical trials on their anticipated schedule, dropping out of a trial, or employing methods not consistent with the
clinical trial protocol, regulatory requirements or other third parties not performing data collection and analysis in a timely or accurate manner;

failure of our contract research organizations, or CROs, to satisfy their contractual duties or meet expected deadlines;

inspections of clinical trial sites by regulatory authorities or IRBs, or ethics committees or boards finding regulatory violations that require us to undertake
corrective action, resulting in suspension or termination of one or more sites or the imposition of a clinical hold on the entire study;

one or more IRBs or ethics committees or boards rejecting, suspending or terminating the study at an investigational site, precluding enrollment of additional
subjects, or withdrawing its approval of the trial; or

failure to reach agreement on acceptable terms with prospective clinical trial sites.

Our product development costs will increase if we experience delays in testing or approval or if we need to perform more or larger clinical trials than planned. Additionally,
changes in regulatory requirements and policies may occur, and we may need to amend study protocols to reflect these changes. Amendments may require us to resubmit our
study  protocols  to  regulatory  authorities  or  IRBs  or  ethics  committees  or  boards  for  re-examination,  which  may  impact  the  cost,  timing  or  successful  completion  of  a  trial.
Delays or increased product development costs may have a material adverse effect on our business, financial condition and prospects.

We rely on contract manufacturers over whom we have limited control. If we are subject to quality, cost or delivery issues with the preclinical and clinical grade materials
supplied by contract manufacturers, our business operations could suffer significant harm.

We rely on CMOs to manufacture our product candidates for some preclinical studies and clinical trials. We rely on CMOs for manufacturing, filling, packaging, storing and
shipping  of  drug  product  in  compliance  with  cGMP  regulations  applicable  to  our  products.  The  FDA  and  other  regulatory  agencies  ensure  the  quality  of  drug  products  by
carefully monitoring drug manufacturers’ compliance with cGMP regulations. The cGMP regulations for drugs contain minimum requirements for the methods, facilities and
controls used in manufacturing, processing and packing of a drug product.

We contracted with multiple CMOs for the manufacture of APTO-253 and CG-806 to supply the active ingredient and then drug product for our clinical trials. The synthesis of
CG-806 is challenging from a scale-up synthetic chemistry perspective. The formulation and manufacture of APTO-253 is a complex process with many variables involved. We
pre-qualified CMOs to have the capacity, the systems and the experience to supply CG-806 and APTO-253 for our clinical trials. We have qualified the manufacturing facilities
and  the  FDA  has  also  performed  site  audits  for  our  selected  CMOs.  In  spite  of  the  efforts  to  prequalify  CMOs,  delays  and  errors  may  occur,  and  any  such  manufacturing
failures, delays or compliance issues could cause delays in the completion of our clinical trial programs.

There can be no assurances that CMOs will be able to meet our timetable and requirements. We have contracted with alternate suppliers in the event our current CMOs are
unable  to  scale  up  production,  or  if  our  current  CMOs  otherwise  experience  any  other  significant  problems  in  the  manufacture  of  CG-806  and APTO-253.  However,  it  is
possible that all third-party manufacturing sources may experience failure or delays and may demand commercially unreasonable terms, which may lead to further delays in the
development of our product candidates. Further, contract manufacturers must operate in compliance with cGMP and failure to do so could result in, among other things, the
disruption of product supplies. Our dependence upon third parties for the manufacture of our products may adversely affect our profit margins and our ability to develop and
deliver products on a timely and competitive basis.

Some components of our products are manufactured by third parties outside of the United States, and our business may be harmed by legal, regulatory, economic, political
and public health risks associated with international trade and those markets.

We have third-party manufacturing partners in Germany and the United Kingdom; in addition, some materials used by our third-party manufacturers are supplied by companies
located  in  other  countries,  including  China.  Our  reliance  on  suppliers  and  manufacturers  in  foreign  markets  creates  risks  inherent  in  doing  business  in  foreign  jurisdictions,
including: (a) the burdens of complying with a variety of foreign laws and regulations, including laws relating to the importation and taxation of goods (b) public health crises,
such as pandemics and epidemics, in the countries where our suppliers and manufacturers are located; (c) transportation interruptions or increases in transportation costs; and (d)
foreign  intellectual  property  infringement  risks.  For  example,  the  ongoing  coronavirus  outbreak  emanating  from  China  at  the  beginning  of  2020  has  resulted  in  extended
shutdown of certain businesses in the region causing reduced availability for certain pharmaceutical ingredients. This public health crisis or any further political developments
or health concerns in markets in which our products are manufactured or from which we obtain necessary pharmaceutical ingredients could adversely affect the supply of our
drug products and, in turn, our business, financial condition, and results of operations.

21

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
If we have difficulty enrolling patients in clinical trials, the completion of the trials may be delayed or cancelled.

As our product candidates advance from preclinical testing to clinical testing, and then through progressively larger and more complex clinical trials, we will need to enroll an
increasing number of patients that meet our eligibility criteria. There is significant competition for recruiting cancer patients in clinical trials, and we may be unable to enroll the
patients we need to complete clinical trials for cancer indications on a timely basis or at all. Certain factors that affect enrollment of patients in our clinical trials are impacted by
external forces that may be beyond our control. Such factors include, but are not limited to, the following:

·

·

·

·

·

·

·

size and nature of the patient population;

eligibility and exclusion criteria for the trial;

design of the study protocol;

competition with other companies for clinical sites or patients;

the perceived risks and benefits of the product candidate under study;

the patient referral practices of physicians; and

the number, availability, location and accessibility of clinical trial sites.

If we are unable to successfully develop companion diagnostics for our therapeutic product candidates, or experience significant delays in doing so, we may not achieve
marketing approval or realize the full commercial potential of our therapeutic product candidates.

We plan to develop companion diagnostics for our therapeutic product candidates. We expect that, at least in some cases, regulatory authorities may require the development
and regulatory approval of a companion diagnostic as a condition to approving our therapeutic product candidates. We have limited experience and capabilities in developing or
commercializing diagnostics and plan to rely in large part on third parties to perform these functions. We do not currently have any agreement in place with any third party to
develop or commercialize companion diagnostics for any of our therapeutic product candidates.

Companion  diagnostics  are  subject  to  regulation  by  the  FDA,  Health  Canada  and  comparable  foreign  regulatory  authorities  as  medical  devices  and  may  require  separate
regulatory approval or clearance prior to commercialization. If we, or any third parties that we engage to assist us, are unable to successfully develop companion diagnostics for
our therapeutic product candidates, or experience delays in doing so, our business may be substantially harmed.

We rely and will continue to rely on third parties to conduct and monitor many of our preclinical studies and our clinical trials, and their failure to perform as required
could cause substantial harm to our business.

We rely and will continue to rely on third parties to conduct a significant portion of our preclinical and clinical development activities. Preclinical activities include in vivo
studies  providing  access  to  specific  disease  models,  pharmacology  and  toxicology  studies,  and  assay  development.  Clinical  development  activities  include  trial  design,
regulatory  submissions,  clinical  patient  recruitment,  clinical  trial  monitoring,  clinical  data  management  and  analysis,  safety  monitoring  and  project  management,  contract
manufacturing  and  quality  assurance.  If  there  is  any  dispute  or  disruption  in  our  relationship  with  third  parties,  or  if  they  are  unable  to  provide  quality  services  in  a  timely
manner and at a feasible cost, our active development programs will face delays. Further, if any of these third parties fails to perform as we expect or if their work fails to meet
regulatory requirements, our testing could be delayed, cancelled or rendered ineffective.

22

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Negative  results  from  clinical  trials  or  studies  of  others  and  adverse  safety  events  involving  the  targets  of  our  products  may  have  an  adverse  impact  on  our  future
commercialization efforts.

From time to time, studies or clinical trials on various aspects of biopharmaceutical products are conducted by academic researchers, competitors or others. The results of these
studies or trials, when published, may have a significant effect on the market for the biopharmaceutical product that is the subject of the study. The publication of negative
results of studies or clinical trials or adverse safety events related to our product candidates, or the therapeutic areas in which our product candidates compete, could adversely
affect our share price and our ability to finance future development of our product candidates, and our business and financial results could be materially and adversely affected.

The design or our execution of clinical trials may not support regulatory approval.

The design or execution of a clinical trial can determine whether its results will support regulatory approval and flaws in the design or execution of a clinical trial may not
become apparent until the clinical trial is well advanced. In some instances, there can be significant variability in safety or efficacy results between different trials of the same
product candidate due to numerous factors, including changes in trial protocols, differences in size and type of the patient populations, adherence to the dosing regimen and
other trial protocols and the rate of dropout among clinical trial participants. We do not know whether any Phase II, Phase III or other clinical trials that we may conduct will
demonstrate consistent or adequate efficacy and safety to obtain regulatory approval to market our product candidates.

Further,  the  FDA,  Health  Canada  and  comparable  foreign  regulatory  authorities  will  have  some  discretion  in  the  approval  process  and  in  determining  when  or  whether
regulatory approval will be obtained for any of our product candidates. Our product candidates may not be approved even if they  achieve  their  primary  endpoints  in  future
Phase III clinical trials or registration trials. The FDA, Health Canada or other regulatory authorities may disagree with our trial design and the Company’s interpretation of data
from preclinical studies and clinical trials. In addition, any of these regulatory authorities may change requirements for the approval of a product candidate even after reviewing
and providing comments or advice on a protocol for a pivotal Phase III clinical trial that has the potential to result in approval by the FDA, Health Canada or another regulatory
agency. In addition, any of these regulatory authorities may also approve a product candidate for fewer or more limited indications than the Company requests or may grant
approval contingent on the performance of costly post-marketing clinical trials. The FDA, Health Canada or other regulatory authorities may not approve the labeling claims that
we believe would be necessary or desirable for the successful commercialization of our product candidates.

As a result of intense competition and technological change in the biotechnical and pharmaceutical industries, the marketplace may not accept our products or product
candidates, and we may not be able to compete successfully against other companies in our industry and achieve profitability.

Many of our competitors have:

·

·

·

·

drug products that have already been approved or are in development;

large, well-funded research and development programs in the biotechnical and pharmaceutical fields;large, well-funded research and development programs in
the biotechnical and pharmaceutical fields;

substantially greater financial, technical and management resources, stronger intellectual property positions and greater manufacturing, marketing and sales
capabilities, areas in which we have limited or no experience; and

significantly greater experience than we do in undertaking preclinical testing and clinical trials of new or improved pharmaceutical products and obtaining
required regulatory approvals.

Consequently, our competitors may obtain FDA, Health Canada and other regulatory approvals for product candidates sooner and may be more successful in manufacturing
and marketing their products than we or our collaborators are.

Our  competitors’  existing  and  future  products,  therapies  and  technological  approaches  will  compete  directly  with  the  products  we  seek  to  develop.  Current  and  prospective
competing products may be more effective than our existing and future products insofar as they may provide greater therapeutic benefits for a specific problem or may offer
easier delivery or comparable performance at a lower cost.

For CG-806 and APTO-253 in AML, examples of potential competitors include Companies that have developed approved or are currently developing inhibitors that directly
target the wild type include AbbVie (IMBRUVICA) and AstraZeneca (CALQUENCE) and Beigene Co., Ltd. (Zanubrutinib).

Others  that  are  developing  inhibitors  that  target  the  C481S-mutant  BTK  include Arqule,  Inc.  (ARQ  531),  Roche,  Sunesis  Pharmaceuticals  (SNS-062)  and  Eli  Lilly  among
others.

For CG-806 and APTO-253 in AML, examples of potential competitors include companies that have developed approved or are currently developing non-targeted therapies
include  Jazz  (VYXEOS),  Pfizer  (MYLOTARG)  and  Roche  (VENCLEXTA),  among  others.  Others  that  have  developed  or  are  developing  highly  targeted  therapies  such  as
FLT-3  include  Novartis  (RYDAPT),  Astellas  (XOSAPTA),  Daiichi  Sankyo  (QUIZARTINIB),  Arog  (CRENOLANIB),  and  IDH1  include  Agios  (TIBSOVO)  and
Celgene/BMS (IDHIFA) among others.

23

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Any product candidate that we develop and that obtains regulatory approval must then compete for market acceptance and market share. Our products may not gain market
acceptance among physicians, patients, healthcare payers, insurers, the medical community and other stakeholders. The degree of market acceptance of our product candidates,
if approved for commercial sale, will depend on a number of factors, including:

·

·

·

·

·

·

·

efficacy and potential advantages compared to alternative treatments;

the ability to offer our product candidates for sale at competitive prices;

convenience and ease of administration compared to alternative treatments;

the willingness of the target patient population to try new therapies and of physicians to prescribe these therapies;

the strength of marketing and distribution support;

sufficient third-party coverage or reimbursement; and

the prevalence and severity of any side effects.

Further, any products we develop may become obsolete or face generic entry before we recover any expenses we incurred in connection with the development of these products.
As a result, we may never achieve profitability.

Risks Related to our Intellectual Property

We may be unable to obtain patents to protect our technologies from other companies with competitive products, and patents of other companies could prevent us from
manufacturing, developing or marketing our products.

Patent protection

The patent positions of pharmaceutical and biotechnology companies are uncertain and involve complex legal and factual questions. The USPTO and many other patent offices
in the world have not established a consistent policy regarding the breadth of claims that they will allow in biotechnology patents.

Our  pending  patent  applications  may  not  result  in  issued  patents  and  our  issued  patents  may  not  be  held  valid  and  enforceable  if  challenged.  Competitors  may  be  able  to
circumvent any such issued patents by adoption of a competitive, though non-infringing product or process. Interpretation and evaluation of pharmaceutical or biotechnology
patent  claims  present  complex  and  often  novel  legal  and  factual  questions.  Our  business  could  be  adversely  affected  by  increased  competition  in  the  event  that  any  patent
granted to it is held to be invalid or unenforceable or is inadequate in scope to protect our operations.

Allowable patentable subject matter and the scope of patent protection obtainable may differ between jurisdictions. If a patent office allows broad claims, the number and cost
of patent interference proceedings in the United States, or analogous proceedings in other jurisdictions and the risk of infringement litigation may increase. If it allows narrow
claims, the risk of infringement may decrease, but the value of our rights under our patents, licenses and patent applications may also decrease.

The scope of the claims in a patent application can be significantly modified during prosecution before the patent is issued. Consequently, we cannot know whether our pending
applications  will  result  in  the  issuance  of  patents  or,  if  any  patents  are  issued,  whether  they  will  provide  us  with  significant  proprietary  protection  or  will  be  circumvented,
invalidated or found to be unenforceable.

Publication  of  discoveries  in  scientific  or  patent  literature  often  lags  behind  actual  discoveries.  Patent  applications  filed  in  the  United  States  generally  will  be  published  18
months after the filing date unless the applicant certifies that the invention will not be the subject of a foreign patent application. In many other jurisdictions, such as Canada,
patent applications are published 18 months from the priority date. We may not be aware of such literature. Accordingly, we cannot be certain that the named inventors of our
products and processes were the first to invent that product or process or that we were the first to pursue patent coverage for our inventions.

In addition, United States patent laws may change which could prevent or limit us from filing patent applications or patent claims in the United States to protect our products
and technologies or limit the exclusivity periods that are available to patent holders for United States patents. For example, the Leahy-Smith America Invents Act, (the “Leahy-
Smith Act”) was signed into law in 2011 and includes a number of significant changes to United States patent law. These include changes to transition from a “first-to-invent”
system to a “first-to-file” system and to the way issued patents are challenged. These changes may favor larger and more established companies that have more resources to
devote  to  patent  application  filing  and  prosecution.  It  is  not  clear  what,  if  any,  impact  the  Leahy-Smith  Act  will  ultimately  have  on  the  cost  of  prosecuting  our  patent
applications in the United States, our ability to obtain patents in the United States based on our discoveries and our ability to enforce or defend our United States issued patents.

24

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Until  such  time,  if  ever,  that  further  patents  are  issued  to  us,  we  will  rely  upon  the  law  of  trade  secrets  to  the  extent  possible  given  the  publication  requirements  under
international patent treaty laws and/or requirements under foreign patent laws to protect our technology and our products incorporating the technology. In this regard, we have
adopted certain confidentiality procedures. These include: limiting access to confidential information to certain key personnel; requiring all directors, officers, employees and
consultants  and  others  who  may  have  access  to  our  intellectual  property  to  enter  into  confidentiality  agreements  which  prohibit  the  use  of  or  disclosure  of  confidential
information to third parties; and implementing physical security measures designed to restrict access to such confidential information and products. Our ability to maintain the
confidentiality of our technology is crucial to our ultimate possible commercial success. The procedures adopted by us to protect the confidentiality of our technology may not
be effective, third parties may gain access to our trade secrets or our trade secrets or those of our collaborators may be independently discovered by others. Our collaborators,
employees and consultants and other parties may not comply with the terms of their agreements with us, and we might be unable to adequately enforce our rights or obtain
adequate compensation for the damages caused by unauthorized disclosure or use of our trade secrets or know how. Further, by seeking patent protection in various countries, it
is inevitable that a substantial portion of our technology will become available to our competitors, through publication of such patent applications.

Enforcement of intellectual property rights

Protection of the rights revealed in published patent applications can be complex, costly and uncertain. Our commercial success depends in part on our ability to maintain and
enforce our proprietary rights. If third parties engage in activities that infringe our proprietary rights, our management’s focus will be diverted and we may incur significant
costs in asserting our rights. We may not be successful in asserting our proprietary rights, which could result in our patents being held invalid or a court holding that the third
party is not infringing, either of which would harm our competitive position.

Others  may  design  around  our  patented  technology.  We  may  have  to  participate  in  interference  proceedings  declared  by  the  United  States  Patent  and  Trademark  Office,
European  opposition  proceedings,  or  other  analogous  proceedings  in  other  parts  of  the  world  to  determine  priority  of  invention  and  the  validity  of  patent  rights  granted  or
applied for, which could result in substantial cost and delay, even if the eventual outcome is favorable to us. Our pending patent applications, even if issued, may not be held
valid or enforceable.

Our products and product candidates may infringe the intellectual property rights of others, or others may infringe on our intellectual property rights which could increase
our costs.

Our success also depends on avoiding infringement of the proprietary technologies of others. In particular, there may be certain issued patents and patent applications claiming
subject matter which we or our collaborators may be required to license in order to research, develop or commercialize APTO-253 or CG-806. In addition, third parties may
assert infringement or other intellectual property claims against us. An adverse outcome in these proceedings could subject us to significant liabilities to third-parties, require
disputed rights to be licensed from third-parties or require us to cease or modify our use of the technology. If we are required to license third-party technology, a license under
such patents and patent applications may not be available on acceptable terms or at all. Further, we may incur substantial costs defending ourselves in lawsuits against charges
of patent infringement or other unlawful use of another’s proprietary technology. We may also need to bring claims against others who we believe are infringing our rights in
order to become or remain competitive and successful. Any such claims can be time consuming and expensive to pursue.

We may incur substantial cost in defending our intellectual property.

While we believe that our products and technology do not infringe proprietary rights of others, third parties may assert infringement claims in the future and such claims could
be successful. Even if challenges are unsuccessful, we could incur substantial costs in defending ourselves against patent infringement claims brought by others or in prosecuting
suits against others. In addition, others may obtain patents that we would need to license, which may not be available to us on reasonable terms. Whether we are able to obtain a
necessary license would depend on the terms offered, the degree of risk of infringement and the need for the patent.

We have licensed important portions of our intellectual property from CG, and are subject to significant obligations under that license agreement.

The  rights  we  hold  under  our  license  agreement  with  CG  are  critical  to  our  business.  Our  CG-806  program  is  built  around  patents  exclusively  in-licensed  from  CG,  which
permit us to research, develop and commercialize CG-806 worldwide except for the Republic of Korea. Under our agreement with CG, we are subject to significant obligations,
including  diligence  obligations  with  respect  to  development  and  commercialization  activities,  payment  obligations  upon  achievement  of  certain  milestones  and  royalties  on
product sales, as well as other material obligations. CG is eligible for payments upon the achievement of developmental, regulatory and commercial-based milestones, as well
as low single-digit royalties on product sales in all territories outside of the Republic of Korea.

25

 
 
 
 
 
 
 
 
 
 
 
If there is any conflict, dispute, disagreement or issue of non-performance between us and CG regarding our rights or obligations under the license agreements, including any
conflict, dispute or disagreement arising from our failure to satisfy diligence or payment obligations under such agreements, CG may have a right to terminate the license. The
loss of this license agreement could materially and adversely affect our ability to use intellectual property that could be critical to our drug discovery and development efforts, as
well as our ability to enter into future collaboration, licensing and/or marketing agreements for one or more affected drug candidates or development programs.

Our business depends, in part, on our ability to use technology that we have licensed or will in the future license from third parties, including CG, and, if these licenses
were terminated or if we were unable to license additional technology we may need in the future, our business will be adversely affected.

We currently hold licenses for certain technologies that are or may be critical to our current and subsequent product candidates. These include our exclusive license to research,
develop and commercialize CG-806 worldwide except for the Republic of Korea. The license from CG is subject to termination in the event of a breach by us of the license, if
we fail to cure the breach following notice and the passage of a cure period. We may need to acquire additional licenses in the future to technologies developed by others.
Furthermore, future license agreements may require us to make substantial milestone payments. We may also be obligated to make royalty payments on the sales, if any, of
products resulting from the license. The termination of a license or the inability to license future technologies on acceptable terms may adversely affect our ability to develop or
sell our products.

Legal and Regulatory Risk

Our ability to develop, produce and market our products is subject to extensive government regulation.

Government  regulation  is  a  significant  factor  in  the  development,  production  and  marketing  of  the  Company’s  products.  Research  and  development,  testing,  manufacture,
marketing and sales of pharmaceutical products or related products are subject to extensive regulatory oversight, often in multiple jurisdictions, which may cause significant
additional  costs  and/or  delays  in  bringing  products  to  market,  and  in  turn,  may  cause  significant  losses  to  investors.  The  regulations  applicable  to  the  Company’s  product
candidates in a given jurisdiction may change. Even if granted, regulatory approvals may include significant limitations on the uses for which products can be marketed or may
be  conditioned  on  the  conduct  of  post-marketing  surveillance  studies.  Failure  to  comply  with  applicable  regulatory  requirements  can,  among  other  things,  result  in  delay  in
approving  or  refusal  to  approve  a  product  candidate,  interruptions  of  clinical  trials  or  manufacturing,  suspension  or  withdrawal  of  regulatory  approval,  warning  letters,  the
imposition of civil penalties or other monetary payments, product recall or seizure, operating restrictions, injunctions or criminal prosecution. In addition, regulatory agencies
many not approve the labeling claims that are necessary or desirable for the successful commercialization of the Company’s product candidates.

Requirements for regulatory approval vary widely from country to country. Whether or not approved in Canada or the United States, regulatory authorities in other countries
must approve a product prior to the commencement of marketing the product in those countries. The time required to obtain any such approval may be longer or shorter than in
Canada or the United States. Approved drugs, as well as their manufacturers, are subject to continuing and ongoing review, and discovery of problems with these products or
the failure to adhere to manufacturing or quality control requirements may result in regulatory restrictions being imposed.

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

In the United States and some foreign jurisdictions, there have been 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, 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. Additionally, the
Drug Supply Chain Security Act, enacted in 2013, imposed new obligations on manufacturers of pharmaceutical products related to product tracking and tracing.

26

 
 
 
  
 
 
 
 
 
 
 
Members of Congress and the Trump Administration have considered legislation to fundamentally change or repeal the Affordable Care Act. While Congress has not passed
repeal legislation to date, the Tax Cuts and Jobs Act (“TCJA”) includes a provision repealing the individual insurance coverage mandate included in the Affordable Care Act,
effective January 1, 2019. Further, 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,  the  President  signed  an  Executive  Order
terminating  the  cost-sharing  subsidies  that  reimburse  insurers  under  the  Affordable  Care  Act.  Several  state  Attorneys  General  filed  suit  to  stop  the  administration  from
terminating the subsidies, but their request for a restraining order was denied by a federal judge in California on October 25, 2017. In addition, the Centers for Medicare and
Medicaid Services has recently proposed regulations that would give states greater flexibility in setting benchmarks for insurers in the individual and small group marketplaces,
which may have the effect of relaxing the essential health benefits required under the Affordable Care Act for plans sold through such marketplaces. Congress may consider
other legislation to replace elements of the Affordable Care Act. The implications of the Affordable Care Act, its possible repeal, any legislation that may be proposed to replace
the Affordable Care Act, or the political uncertainty surrounding any repeal or replacement legislation for our business and financial condition, if any, are not yet clear.

We expect ongoing initiatives in the United States and internationally to increase pressure on drug pricing. Regulations that mandate price controls and limitations on patient
access to products or establish prices paid by government entities or programs may impact product candidates that we may successfully develop. Pharmaceutical product pricing
is subject to enhanced government and public scrutiny and calls for reform. Some U.S. states have implemented, and other U.S. states are considering, pharmaceutical price
controls or patient access constraints under the Medicaid program, and some U.S. states are considering price-control regimes that would apply to broader segments of their
populations that are not Medicaid eligible. Efforts by government officials or legislators to implement measures to regulate prices or payments for pharmaceutical products,
including legislation on drug importation, 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 drug candidates.

Legislative and regulatory proposals have also been made to expand post approval requirements and restrict sales and promotional activities for pharmaceutical products in the
US. 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.

In Canada, the Patented Medicine Prices Review Board ("PMPRB")  has jurisdiction to control prices of patented medicines that are considered excessive. Recent changes to the
regulations governing the PMPRB are intended to lower the prices of patented medicines even further. The PMPRB's jurisdiction could extend to any of our drug products that
are approved in Canada and protected under Canadian patents, with an adverse effect on the prices that we would otherwise obtain for these drugs in the relevant market.

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 drug candidates 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 drug candidates will be made on a plan by plan basis. One
payor’s determination to provide coverage for a product does not assure that other payors will also provide coverage, and adequate reimbursement, for the product. Additionally,
a third party payor’s decision to provide coverage for a drug does not imply that an adequate reimbursement rate will be approved. Each plan determines whether or not it will
provide  coverage  for  a  drug,  what  amount  it  will  pay  the  manufacturer  for  the  drug,  and  on  what  tier  of  its  formulary  the  drug  will  be  placed.  The  position  of  a  drug  on  a
formulary generally determines the copayment that a patient will need to make to obtain the drug and can strongly influence the adoption of a drug by patients and physicians.
Patients who are prescribed treatments for their conditions and providers performing the prescribed services generally rely on third party payors to reimburse all or part of the
associated healthcare costs. Patients are unlikely to use our products unless coverage is provided and reimbursement is adequate to cover a significant portion of the cost of our
products. 

A primary trend in the U.S. 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 drug
candidates that we develop.

27

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

We are subject to U.S. 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 could expose us to broadly applicable U.S. and Canadian laws and regulations relating to fraud abuse
and healthcare more generally 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.

Efforts  to  ensure  that  our  collaborations  with  third  parties,  and  our  business  generally,  will  comply  with  applicable  U.S.  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.

If product liability, clinical trial liability or environmental liability claims are brought against us or we are unable to obtain or maintain product liability, clinical trial or
environmental liability insurance, we may incur substantial liabilities that could reduce our financial resources.

The clinical testing and commercial use of pharmaceutical products involves significant exposure to product liability, clinical trial liability, environmental liability and other
risks that are inherent in the testing, manufacturing and marketing of our products. These liabilities, if realized, could have a material adverse effect on the Company’s business,
results of operations and financial condition.

We have obtained limited product liability insurance coverage for our clinical trials on humans; however, our insurance coverage may be insufficient to protect us against all
product liability damages. Regardless of merit or eventual outcome, liability claims may result in decreased demand for a future product, injury to reputation, withdrawal of
clinical trial volunteers, loss of revenue, costs of litigation, distraction of management and substantial monetary awards to plaintiffs. Additionally, if we are required to pay a
product liability claim, we may not have sufficient financial resources to complete development or commercialization of any of our product candidates and our business and
results of operations will be adversely affected. In general, insurance will not protect us against some of our own actions, such as negligence.

As the Company’s development activities progress towards the commercialization of product candidates, our liability coverage may not be adequate, and the Company may not
be able to obtain adequate product liability insurance coverage at a reasonable cost, if at all. Even if the Company obtains product liability insurance, its financial position may
be materially adversely affected by a product liability claim. A product liability claim could also significantly harm the Company’s reputation and delay market acceptance of its
product  candidates. Additionally,  product  recalls  may  be  issued  at  the  direction  of  the  FDA,  other  government  agencies  or  other  companies  having  regulatory  control  for
pharmaceutical sales. If a product recall occurs in the future, such a recall could adversely affect our business, financial condition or reputation.

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

We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use, storage, treatment
and  disposal  of  hazardous  materials  and  wastes.  Our  operations  involve  the  use  of  hazardous  and  flammable  materials,  including  chemicals  and  radioactive  and  biological
materials. Our operations also produce hazardous waste products. We generally contract with third parties for the disposal of these materials and wastes. We cannot eliminate
the risk of contamination or injury from these materials. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable for any
resulting damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties.

28

 
 
 
 
 
 
 
 
 
 
 
Although we maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from the use of hazardous
materials, this insurance may not provide adequate coverage against potential liabilities. We do not maintain insurance for environmental liability or toxic tort claims that may
be asserted against us in connection with our storage or disposal of biological, hazardous or radioactive materials.

In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws and regulations. These current or future laws and
regulations may impair our research, development or production efforts. Failure to comply with these laws and regulations also may result in substantial fines, penalties or other
sanctions.

We may be unable to obtain partnerships for our product candidates, which could curtail future development and negatively affect our share price. In addition, our partners
might not satisfy their contractual responsibilities or devote sufficient resources to our partnership.

Our strategy for the research, development and commercialization of our products requires entering into various arrangements with corporate collaborators, licensors, licensees
and others, and our commercial success is dependent upon these outside parties performing their respective contractual responsibilities. The amount and timing of resources that
such third parties will devote to these activities may not be within our control. These third parties may not perform their obligations as expected and our collaborators may not
devote adequate resources to our programs. In addition, we could become involved in disputes with our collaborators, which could result in a delay or termination of the related
development programs or result in litigation. We intend to seek additional collaborative arrangements to develop and commercialize some of our products. We may not be able
to negotiate collaborative arrangements on favorable terms, or at all, in the future, and our current or future collaborative arrangements may not be successful.

If  we  cannot  negotiate  collaboration,  license  or  partnering  agreements,  we  may  never  achieve  profitability  and  we  may  not  be  able  to  continue  to  develop  our  product
candidates. Commencing Phase I, Phase II and Phase III clinical trials for CG-806 and continuing Phase Ib, and commencing Phase II and Phase III clinical trials for APTO-253
would require significant amounts of funding and such funding may not be available to us.

Risks Related to Our Common Shares

Our share price has been and is likely to continue to be volatile and an investment in our Common Shares could suffer a decline in value.

You should consider an investment in our Common Shares as risky and invest only if you can withstand a significant loss and wide fluctuations in the market value of your
investment. The market price of our Common Shares has been highly volatile and is likely to continue to be volatile. This leads to a heightened risk of securities litigation
pertaining to such volatility. Factors affecting our Common Share price include but are not limited to:

·

·

·

·

·

·

·

·

the progress of our pre-clinical and clinical trials;

our ability to obtain partners and collaborators to assist with the future development of our products;

general market conditions;

announcements of technological innovations or new product candidates by us, our collaborators or our competitors;

published reports by securities analysts;

developments in patent or other intellectual property rights;

the cash and investments held by us and our ability to secure future financing;

our ability to raise additional capital;

29

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
·

·

·

·

public concern as to the safety and efficacy of drugs that we and our competitors develop;

shareholder interest in our Common Shares;

low liquidity in the daily trading volume of our Common Shares; and

our ability to continue as a going concern;

Future sales of our Common Shares by us or by our existing shareholders could cause our share price to fall.

The issuance of Common Shares by us could result in significant dilution in the equity interest of existing shareholders and adversely affect the market price of our Common
Shares. Sales by existing shareholders of a large number of our Common Shares in the public market and the issuance of Common Shares in connection with strategic alliances,
or the perception that such additional sales could occur, could cause the market price of our Common Shares to decline and have an undesirable impact on our ability to raise
capital.

We are susceptible to stress in the global economy and therefore, our business may be affected by the current and future global financial conditions.

If the increased level of volatility and market turmoil that have marked recent years continue, our operations, business, financial condition and the trading price of our Common
Shares  could  be  materially  adversely  affected.  Furthermore,  general  economic  conditions  may  have  a  great  impact  on  us,  including  our  ability  to  raise  capital,  our
commercialization opportunities and our ability to establish and maintain arrangements with others for research, manufacturing, product development and sales.

An active trading market in our Common Shares may not be sustained.

Our Common Shares are listed for trading on the Nasdaq Capital Market and the TSX. However, an active trading market in our Common Shares on the stock exchanges may
not be sustained and we may not be able to maintain our listings.

Certain Canadian laws could delay or deter a change of control.

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 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.

The exercise of all or any number of outstanding stock options, the award of any additional options, restricted stock units or other stock-based awards or any issuance of
shares to raise funds or acquire a business may dilute your Common Shares.

We have in the past and may in the future grant to some or all of our directors, officers and employees options to purchase our Common Shares and other stock-based awards as
non-cash incentives to those persons. The issuance of any equity securities could, and the issuance of any additional shares will, cause our existing shareholders to experience
dilution of their ownership interests.

Any additional issuance of shares or a decision to acquire other businesses through the sale of equity securities may dilute our investors’ interests, and investors may suffer
dilution in their net book value per share depending on the price at which such securities are sold. Such issuance may cause a reduction in the proportionate ownership and
voting power of all other shareholders. The dilution may result in a decline in the price of our Common Shares or a change in control.

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.

30

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
Other Risks

It may be difficult for non-Canadian investors to obtain and enforce judgments against us because of our Canadian incorporation and presence.

We are a corporation existing under the laws of Canada. Some of our directors and officers, and many of the experts named in this Annual Report on Form 10-K, are residents
of  Canada,  and  all  or  a  substantial  portion  of  their  assets,  and  a  substantial  portion  of  our  assets,  are  located  outside  the  United  States.  Consequently,  although  we  have
appointed an agent for service of process in the United States, it may be difficult for holders of our shares who reside in the United States to effect service within the United
States upon our directors and officers and experts who are not residents of the United States. It may also be difficult for holders of our shares who reside in the United States to
realize in the United States upon judgments of courts of the United States predicated upon our civil liability and the civil liability of our directors, officers and experts under the
United States federal securities laws. Investors should not assume that Canadian courts (i) would enforce judgments of United States courts obtained in actions against us or our
directors, officers or experts predicated upon the civil liability provisions of the United States federal securities laws or the securities or “blue sky” laws of any state within the
United States or (ii) would enforce, in original actions, liabilities against us or our directors, officers or experts predicated upon the United States federal securities laws or any
such state securities or “blue sky” laws. In addition, we have been advised by our Canadian counsel that in normal circumstances, only civil judgments and not other rights
arising from United States securities legislation are enforceable in Canada and that the protections afforded by Canadian securities laws may not be available to investors in the
United States.

We are likely a “passive foreign investment company” which may have adverse United States federal income tax consequences for United States shareholders.

United States investors in our Common Shares should be aware that the Company believes it was classified as a passive foreign investment company (“PFIC”) during the tax
year  ended  December  31,  2019,  and  based  on  the  nature  of  our  business,  the  projected  composition  of  our  gross  income  and  the  projected  composition  and  estimated  fair
market value of our assets, the Company expects to be a PFIC for the year ending December 31, 2020, and may be a PFIC in subsequent tax years. If the Company is a PFIC
for any year during a United States shareholder’s holding period, then such United States shareholder generally will be required to treat any gain realized upon a disposition of
Common  Shares,  or  any  so-called  “excess  distribution”  received  on  its  Common  Shares,  as  ordinary  income,  and  to  pay  an  interest  charge  on  a  portion  of  such  gain  or
distributions,  unless  the  shareholder  makes  a  timely  and  effective  “qualified  electing  fund”  election  (“QEF  election”)  or  a  “mark-to-market”  election  with  respect  to  the
Common Shares. A United States shareholder who makes a QEF election generally must report on a current basis its share of the Company’s net capital gain and ordinary
earnings for any year in which the Company is a PFIC, whether or not the Company distributes any amounts to its shareholders. However, United States shareholders should be
aware  that  we  do  not  intend  to  satisfy  record  keeping  requirements  that  apply  to  a  qualified  electing  fund,  and  we  do  not  intend  to  supply  United  States  shareholders  with
information that such United States shareholders require to report under the QEF election rules, in the event that we are a PFIC and a United States shareholder wishes to make a
QEF  election.  Thus,  United  States  shareholders  should  assume  that  they  will  not  be  able  to  make  a  QEF  election  with  respect  to  their  Common  Shares. A  United  States
shareholder who makes the mark-to-market election generally must include as ordinary income each year the excess of the fair market value of the Common Shares over the
taxpayer’s  basis  therein.  Each  United  States  shareholder  should  consult  its  own  tax  advisor  regarding  the  United  States  federal,  United  States  local,  and  foreign  tax
consequences of the PFIC rules and the acquisition, ownership, and disposition of our Common Shares.

We are an “emerging growth company,” and we cannot be certain if the reduced reporting requirements applicable to emerging growth companies will make our Common
Shares less attractive to investors.

We are an “emerging growth company,” as defined in the Jumpstart Our Business Startups Act of 2012 (United States), or the JOBS Act. For as long as we continue to be an
emerging  growth  company,  we  may  take  advantage  of  exemptions  from  various  reporting  requirements  that  are  applicable  to  other  public  companies  that  are  not  emerging
growth  companies,  including  not  being  required  to  comply  with  the  auditor  attestation  requirements  of  Section  404  of  the Sarbanes-Oxley  Act  of  2002  (United  States)  (the
“SOX”), reduced disclosure obligations regarding executive compensation in our periodic reports and exemptions from the requirements of holding a nonbinding advisory vote
on executive compensation and shareholder approval of any golden parachute payments not previously approved.

We will cease to be an emerging growth company upon the earliest of:

31

 
 
 
 
 
 
 
 
 
·

·

·

·

the last day of the fiscal year during which we have total annual gross revenues of $1,000,000,000 (as such amount is indexed for inflation every five years by
the SEC or more;

the last day of our fiscal year following the fifth anniversary of the completion of our first sale of common equity securities pursuant to an effective registration
statement under the Securities Act (United States) which will be in September 2020;

the date on which we have, during the previous three-year period, issued more than $1,000,000,000 in non- convertible debt; or

the date on which we are deemed to be a “large accelerated filer”, as defined in Rule 12b–2 of the Exchange Act (United States) (the “Exchange Act”), which
would occur if the market value of our ordinary shares that are held by non-affiliates exceeds $700,000,000 as of the last day of our most recently completed
second fiscal quarter.

We cannot predict if investors will find our Common Shares less attractive because we may rely on these exemptions. If some investors find our Common Shares less attractive
as a result, there may be a less active trading market for our Common Shares and our share price may be more volatile.

Any failure to maintain an effective system of internal controls may result in material misstatements of our consolidated financial statements or cause us to fail to meet our
reporting obligations or fail to prevent fraud; and in that case, our shareholders could lose confidence in our financial reporting, which would harm our business and
could negatively impact the price of our Common Shares.

Section  404(a)  of  the  SOX  requires  that  our  management  assess  and  report  annually  on  the  effectiveness  of  our  internal  control  over  financial  reporting  and  identify  any
material weaknesses in our internal control over financial reporting. Although Section 404(b) of the SOX requires our independent registered public accounting firm to issue an
annual report that addresses the effectiveness of our internal control over financial reporting, we have opted to rely on the exemptions provided to us by virtue of being an
emerging growth company, and consequently will not be required to comply with SEC rules that implement Section 404(b) of SOX until we lose our emerging growth company
status.

Effective internal controls are necessary for us to provide reliable financial reports and prevent fraud. If we fail to maintain an effective system of internal controls, we might
not be able to report our financial results accurately or prevent fraud; and in that case, our shareholders could lose confidence in our financial reporting, which would harm our
business and could negatively impact the price of our Common Shares. While we believe that we have sufficient personnel and review procedures to allow us to maintain an
effective  system  of  internal  controls,  we  cannot  assure  you  that  we  will  not  experience  potential  material  weaknesses  in  our  internal  control.  Even  if  we  conclude  that  our
internal control over financial reporting provides reasonable assurance regarding the reliability of financial reporting and the preparation of consolidated financial statements for
external  purposes  in  accordance  with  generally  accepted  accounting  principles  in  the  United  States  (“US  GAAP”),  because  of  its  inherent  limitations,  internal  control  over
financial  reporting  may  not  prevent  or  detect  fraud  or  misstatements.  Failure  to  implement  required  new  or  improved  controls,  or  difficulties  encountered  in  their
implementation, could harm our results of operations or cause us to fail to meet our future reporting obligations.

If we fail to timely achieve and maintain the adequacy of our internal control over financial reporting, we may not be able to produce reliable financial reports or help prevent
fraud. Our failure to achieve and maintain effective internal control over financial reporting could prevent us from complying with our reporting obligations on a timely basis,
which could result in the loss of investor confidence in the reliability of our consolidated financial statements, harm our business and negatively impact the trading price of our
Common Shares.

Prior to December 31, 2018, we were a foreign private issuer and were therefore not subject to certain United States securities law disclosure requirements that apply to a
domestic United States issuer, which may limit the historical information publicly available to our shareholders.

As a foreign private issuer prior to December 31, 2018, we were exempt from certain rules under the Exchange Act that impose disclosure requirements as well as procedural
requirements for proxy solicitations under Section 14 of the Exchange Act. In addition, our officers, directors and principal shareholders were exempt from the reporting and
“short-swing” profit recovery provisions of Section 16 of the Exchange Act. Moreover, we were not required to file periodic reports and financial statements with the SEC as
frequently or as promptly as a company that files as a domestic issuer whose securities are registered under the Exchange Act, nor were we generally required to comply with
the SEC’s Regulation Fair Disclosure, which restricts the selective disclosure of material non-public information. For as long as we were a “foreign private issuer” or an eligible
Canadian  issuer  under  the  Multijurisdictional  Disclosure  System,  we  filed  our  annual  financial  statements  on  Form  20-F,  or  on  Form  40-F,  respectively,  and  furnished  our
quarterly updates on Form 6-K to the SEC. However, the information we filed or furnished was not the same as the information required in annual and quarterly reports on Form
10-K or Form 10-Q for United States domestic issuers. Accordingly, there may be less historical information publicly available concerning us than there is for a company that
has filed as a domestic issuer for longer.

32

 
 
 
 
 
 
 
 
 
 
 
 
Data security incidents and privacy breaches could result in important remediation costs, increased cyber security costs, litigation and reputational harm.

Cyber security incidents can result from deliberate attacks or unintentional events. Cyber-attacks and security breaches could include unauthorized attempts to access, disable,
improperly modify or degrade the Company’s information, systems and networks, the introduction of computer viruses and other malicious codes and fraudulent “phishing”
emails  that  seek  to  misappropriate  data  and  information  or  install  malware  onto  users’  computers.  Cyber-attacks  in  particular  vary  in  technique  and  sources,  are  persistent,
frequently change and are increasingly more targeted and difficult to detect and prevent against. Our network security and data recovery measures and those of third parties with
which we contract, may not be adequate to protect again cyber-attacks.

Disruptions due to cyber security incidents could adversely affect Aptose’s business. In particular, a cyber security incident could result in the loss or corruption of data from
Aptose’s  research  and  development  activities,  including  clinical  trials,  which  may  cause  significant  delays  to  some  or  all  of  the  Company’s  clinical  programs. Also,  the
Company’s trade secrets, including unpatented know how, technology and other proprietary information could be disclosed to competitors further to a breach, which would
harm the Company’s business and competitive position. We expect that risks and exposures related to cyber security attacks will remain high for the foreseeable future due to the
rapidly evolving nature and sophistication of these threats. While we have invested in the protection of data and information technology, there can be no assurance that our
efforts to implement adequate security measures would be sufficient to protect the Company against cyber-attacks.

We must successfully upgrade and maintain our information technology systems.

We rely on various information technology systems to manage our operations. There are inherent costs and risks associated with maintaining, modifying and/or changing these
systems and implementing new systems, including potential disruption of our internal control structure, substantial capital expenditures, additional administration and operating
expenses, retention of sufficiently skilled personnel to implement and operate its systems, demands on management time and other risks and costs of delays or difficulties in
transitioning  to  new  systems  or  of  integrating  new  systems  into  our  current  systems.  In  addition,  our  information  technology  system  implementations  may  not  result  in
productivity  improvements  at  a  level  that  outweighs  the  costs  of  implementation,  or  at  all.  The  implementation  of  new  information  technology  systems  may  also  cause
disruptions in our business operations and have an adverse effect on our business, prospects, financial condition and operating results.

 ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

 ITEM 2. PROPERTIES

We lease approximately 7,309 square feet of office space and 2,168 square feet of lab space in San Diego, California. The lease for the office space expires on March 31, 2023,
and can be extended for an additional 5 year period. We lease approximately 2,078 square feet of office space in Toronto, Ontario, Canada. The lease for this location expires on
June 30, 2023, with an option to renew for another five-year period. We believe that our facilities are sufficient to meet our needs and that suitable additional space will be
available as and when needed.

 ITEM 3. LEGAL PROCEEDINGS

We know of no material pending legal proceedings to which our company or subsidiaries is a party or of which any of our properties, or the properties of our subsidiaries, is the
subject. However, from time to time, we may be subject to various pending or threatened legal actions and proceedings, including those that arise in the ordinary course of our
business.  Such matters are subject to many uncertainties and to outcomes that are not predictable with assurance and that may not be known for extended periods of time.

 ITEM 4. MINE SAFETY DISCLOSURES

None.

33

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 PART II.

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

Our Common Shares are currently traded on The Nasdaq Capital Market under the symbol “APTO” and the Toronto Stock Exchange under the symbol “APS”.

As of March 10, 2020, there were approximately 33 shareholders of record of our Common Shares, which included Cede & Co., a nominee for Depository Trust Company, or
DTC, and CDS & Co., a nominee for The Canadian Depository for Securities Ltd., or CDS. Common shares that are held by financial institutions as nominees for beneficial
owners are deposited into participant accounts at either DTC or CDS, and are considered to be held of record by Cede & Co. or CDS & Co. as one shareholder.

We currently intend to retain all future earnings, if any, for the operation and expansion of our business and, therefore, do not anticipate declaring or paying cash dividends on
our Common Shares in the foreseeable future.

Repurchases of Equity Securities

There were no repurchases of equity securities during the fourth quarter of 2019.

 ITEM 6. SELECTED FINANCIAL DATA

The following selected consolidated financial data have been derived from, and should be read in conjunction with, the accompanying audited consolidated financial statements
for the years ended December 31, 2019 and 2018, respectively, and related notes appearing elsewhere in this Annual Report on Form 10-K (the “Financial Statements”) which
are  prepared  in  accordance  with  US  GAAP.  You  should  read  the  selected  financial  data  set  forth  below  in  conjunction  with  “Management’s  Discussion  and Analysis  of
Financial Condition and Results of Operations” and our consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K.

Consolidated Statements of Loss and Comprehensive Loss

(amounts in US thousands except for per common share data)
REVENUE

EXPENSES
Research and development
General and administrative
Operating expenses
Interest Income
Foreign exchange gains/(loss)
Total other income
Net loss

Other comprehensive loss:
Unrealized gain on securities available-for-sale
Total comprehensive loss
Basic and diluted loss per common share
Weighted average number of Common Shares outstanding used in the calculation of:

Basic and diluted loss per share

Total Assets
Total non-current Liabilities

34

Year ended
December 31,
2019

Year ended
December 31,
2018

  $

—    $

— 

16,835     
10,022     
26,857     
574     
6     
580     
(26,277)    

18     
(26,259)    
(0.52)   $

50,160     
100,476    $
1,011    $

18,733 
10,374 
29,107 
283 
(44)
239 
(28,868)

— 
(28,868)
(0.86)

33,391 
16,870 
— 

  $

  $
  $

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
 
      
  
 
 
 
 
 ITEM 7 - MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This discussion contains forward-looking statements that involve risks and uncertainties. When reviewing the discussion below, you should keep in mind the substantial risks
and uncertainties that impact our business. In particular, we encourage you to review the risks and uncertainties described in “Risk Factors” in Part I, Item 1A in this Annual
Report on Form 10-K. These risks and uncertainties could cause actual results to differ materially from those projected or implied by our forward-looking statements contained
in this report. These forward-looking statements are made as of the date of this management’s discussion and analysis, and we do not intend, and do not assume any obligation,
to update these forward-looking statements, except as required by law.

All amounts are expressed in United States dollars unless otherwise stated.

OVERVIEW

Aptose  Biosciences  Inc.  (“we”,  “our”,  “us”,  “Aptose”  or  the  “Company”)  is  a  science-driven  biotechnology  company  advancing  first-in-class  targeted  agents  to  treat  life-
threatening cancers, such as acute myeloid leukemia (“AML”), high-risk myelodysplastic syndromes (“MDS”), chronic lymphocytic leukemia (“CLL”) and other hematologic
malignancies. Based on insights into the genetic and epigenetic profiles of certain cancers and patient populations, Aptose is building a pipeline of novel oncology therapies
directed at dysregulated processes and signaling pathways. Aptose is developing targeted medicines for precision treatment of these diseases to optimize efficacy and quality of
life by minimizing the side effects associated with conventional therapies. We currently have in development two molecules: CG026806 (“CG-806”) and APTO-253, both being
evaluated for safety, tolerability, pharmacokinetics and signals of efficacy in Phase I clinical trials. Each molecule is described below:

CG-806  is  an  orally  administered,  highly  potent  first-in-class  pan-FLT3/pan-BTK  inhibitor  that  targets  defined  clusters  of  kinases  that  are  operative  in  hematologic
malignancies.  This  mutationally  agnostic  small  molecule  anticancer  agent  is  currently  being  evaluated  in  a  Phase  Ia/b  study  for  the  treatment  of  patients  having  B-cell
malignancies including CLL, small lymphocytic lymphoma (“SLL”) and certain non-Hodgkin’s lymphomas (“NHL”) that are resistant/refractory/intolerant to other therapies.
Aptose  also  is  planning  for  a  Phase  I  study  for  the  development  of  CG-806  for  the  treatment  of  patients  with  relapsed/refractory  acute  myeloid  leukemia  (“R/R AML”),
including the emerging populations resistant to FMS-like tyrosine kinase 3 (“FLT3”) inhibitors.

APTO-253 is our Phase I/b-stage small molecule therapeutic agent that inhibits expression of the MYC oncogene without causing, to date, general myelosuppression of the
bone marrow. The MYC oncogene is overexpressed in hematologic cancers, including AML and certain B cell malignancies. MYC is a transcription factor that regulates cell
growth,  proliferation,  differentiation  and  apoptosis,  and  overexpression  of  MYC  amplifies  new  sets  of  genes  to  promote  survival  of  cancer  cells.  APTO-253  suppresses
expression of the MYC oncogene in AML cells and depletes those cells of the MYC oncoprotein, leading to apoptotic cell death. Indeed, the first AML patient administered the
lowest dose level (20 mg/m2) of APTO-253 experienced a significant reduction in the expression of MYC in blood cells (“PBMCs”) during the 28-day cycle of therapy, and no
drug-related adverse events were noted. Likewise, the second patient administered APTO-253, this time an MDS patient administered the second dose level (40 mg/m2), also
showed  a  significant  reduction  in  the  expression  of  MYC  in  PBMCs  during  the  28-day  cycle  of  therapy,  and  no  drug-related  adverse  events  were  noted.  Similarly,  MYC
inhibition was observed in patients in the 66 mg/m2 dose level. Aptose now is dosing and enrolling patients with the fourth dose level (100 mg/m2). Thus, APTO-253 may
serve as a safe and effective MYC inhibitor for AML/MDS patients that combines well with other agents and does not significantly impact the normal bone marrow.

35

 
 
 
 
 
 
 
  
PROGRAM UPDATES

CG-806
Indication and Clinical Trials:

CG-806  is  being  developed  with  the  intent  to  deliver  the  agent  as  an  oral  therapeutic  and  to  develop  it  for  relapsed  and  refractory  (R/R) AML  and  for  appropriate  B  cell
malignancies (including but not limited to CLL, SLL and NHL).

On March 25, 2019, we announced that the U.S Food and Drug Administration (“FDA”) granted Aptose Investigational New Drug (“IND”) allowance to initiate its Phase I
clinical  trial  for  CG-806.  The  Phase  I  clinical  trial  is  a  multicenter,  open  label,  dose-escalation  study  with  expansions  to  assess  the  safety,  tolerability,  PK,  and  preliminary
efficacy of CG-806 in patients with CLL, SLL or NHL. The initial goal of the trial is to evaluate safety, tolerability, pharmacokinetics and pharmacodynamic effects of CG-806
in these patient populations and to observe for signals of efficacy. In this study, CG-806 is administered in gelatin capsules twice daily (“BID”) during a 28-day cycle.

As of the date of this report, we have initiated eighteen clinical sites for the Phase Ia/b trial in patients with CLL/SLL or NHL and have completed enrollment of patients on the
first, second, and third dose cohorts. Under an FDA-approved accelerated titration protocol, only one patient was required at each of the first two dose levels. The first CLL
patient at the first dose level received 150mg BID during a 28-day cycle and is continuing on study in their ninth cycle. A second CLL patient was enrolled at the second dose
level (300mg BID) during a 28-day cycle, and this patient completed four cycles before discontinuing during the fifth cycle. In this CLL patient, we observed pharmacologic
inhibition  of  phospho-BTK  (100%  inhibition  4hrs  following  administration  of  the  first  dose),  an  increase  in  peripheral  blood  lymphocytes  (or  lymphocytosis)  classically
ascribed as a response to inhibition of BTK, and no treatment related adverse events. Aptose is now dosing three patients enrolled at the third dose cohort (450mg BID). Our
Clinical Safety Review Committee reviews relevant data following completion of each cohort, and following completion of the third dose level the committee may approve
escalation to the fourth dose level (600mg BID) as appropriate.

Aptose also plans to seek allowance from the FDA to move  CG-806  into  the AML  patient  population  in  a  separate  Phase  I  trial.  Currently,  we  are  finalizing  our  efforts  to
advance  into  a  study  in  patients  with AML.  The  FDA  has  granted  orphan  drug  designation  to  CG-806  for  the  treatment  of  patients  with AML.  Orphan  drug  designation  is
granted by the FDA to encourage companies to develop therapies for the treatment of diseases that affect fewer than 200,000 individuals in the United States. Orphan drug
status provides research and development tax credits, an opportunity to obtain grant funding, exemption from FDA application fees and other benefits. If CG-806 is approved to
treat AML, the orphan drug designation provides us with seven years of marketing exclusivity.

Manufacturing:
We created a scalable chemical synthetic route for the manufacture of CG-806 drug substance and have scaled the manufacture of API (active pharmaceutical ingredient, or
drug substance) to multi-kg levels. We manufactured and delivered a batch of API which was used for Dose Range Finding Studies that were performed and completed in early
January 2018. We completed in March 2018 the manufacture of a multi-kg batch of Good Laboratory Practice (“GLP”) grade API and then formulated that API into a drug
product  for  use  in  IND-enabling  GLP  toxicology  studies.  We  also  completed  the  manufacture  of  a  multi-kg  batch  of API  under  Good  Manufacturing  Product  (“GMP”)
conditions as our API supply for our first-in-human clinical trials, and we manufactured under GMP conditions two dosage strengths of capsules to serve as our clinical supply
in  those  human  studies.  Since  then,  we  have  completed  successful  manufacture  of  multiple  batches  of API  and  drug  product,  and  have  planned  numerous  GMP  production
campaigns to supply the ongoing trial and planned trials into the future. Although we have been able to manufacture API and capsules to support clinical supplies under GMP
conditions, research and development funds are being utilized to support further exploratory formulation studies in an ongoing effort to craft a superior formulation for CG-806.

36

 
 
 
 
 
 
 
 
Preclinical Program Updates:
We have completed several non-clinical studies that demonstrate the highly differentiated profile of CG-806. Key studies that have been presented at scientific forums are as
follows:
·

On April 15, 2018, at the 2018 Annual Meeting of the American Association for Cancer Research (“AACR”), we presented with the OHSU Knight Cancer Institute
preclinical  data  demonstrating  that  CG-806,  a  pan-FLT3/pan-BTK  inhibitor,  demonstrates  broader  activity  and  superior  potency  to  other  FLT3  and  BTK  inhibitors
against  primary  bone  marrow  samples  from  patients  with  hematologic  malignancies.  We  also  presented  preclinical  data  demonstrating  CG-806  targets  multiple
pathways to kill diverse subtypes of AML and B-cell malignancies in vitro.

·

·

·

·

·

On June 15, 2018, at the 23rd Congress of the European Hematology Association (“EHA”), we presented, during a poster presentation, preclinical data demonstrating a
unique binding mode of CG-806 to wild type and C481S mutant BTK. Further, we presented that CG-806 suppresses the BCR, AKT/PI3K, ERK and NFkB signaling
pathways and exerts broader and far greater potency of direct cancer cell killing that ibrutinib against malignant bone marrow cells from patients with CLL, ALL and a
host of other hematologic malignancies.

On December 3, 2018, we announced two separate poster presentations at the American Society of Hematology (ASH) Annual Meeting being held on December 1-4,
2018. The OHSU Knight Cancer Institute and Aptose presented data in one poster and the team at The University of Texas MD Anderson Cancer Center (“MDACC”)
presented  data  in  a  separate  poster.  These  presentations  highlighted  several  key  findings.  First,  in  collaboration  with  the  MDACC,  orally  administered  CG-806
demonstrated efficacy in a patient derived xenograft (“PDX”) study in which the bone marrow cells from a patient with AML having dual ITD and D835 mutations in
FLT3  were  implanted  into  a  mouse.  The  dual  FLT3  mutant  form  of AML  represents  a  very  difficult-to-treat  population  that  has  shown  resistance  to  other  FLT3
inhibitors, and data from the PDX model suggest that CG-806 may be useful in treating such patients. Secondly, Aptose presented high level data from preclinical GLP
toxicology studies that demonstrate orally administered CG-806 is a well-tolerated targeted molecule. Finally, in collaboration with the OHSU Knight Cancer Center,
studies  of  CG-806  on  124  samples  of  freshly  isolated  bone  marrow  from  CLL  patients  demonstrated  both  broader  and  greater  cell  killing  potency  for  CG-806  than
Ibrutinib.

On April 1, 2019, at the 2019 Annual Meeting of the AACR, Aptose, along with our collaborators at OHSU Knight Cancer Institute, presented data highlighting CG-
806 was more potent in killing AML patient-derived samples than other FLT3 inhibitors including midostaurin, sorafenib, sunitinib, dovitinib, quizartinib, crenolanib
and gilteritinib. CG-806 was equally potent against cells from patients in the adverse, intermediate and favorable risk groups (2017 ELN risk stratification), and cells
from  patients  with  relapsed  or  transformed AML  (World  Health  Organization  classification)  were  as  sensitive  as  those  from  patients  with  de  novo AML.  The  data
demonstrated potency on primary AML patient samples across all AML subgroups including relapsed/refractory/transformed AML and those with genetic abnormalities
related to poor prognosis. While patient samples with FLT3-ITD mutations were expected to have greater sensitivity to CG-806, the most surprising correlation was the
sensitivity  of  patient  samples  with  IDH1  R132  mutations.  The  enhanced  sensitivity  of  IDH-1  mutant AML  to  CG-806  warrants  investigation  in  the  clinical  setting.
Moreover, in studies of CG-806 on AML patient bone marrow samples, we demonstrated that mutations in p53, ASXL1 and NPM1 do not hinder the potency of CG-
806.

On June 14, 2019, we presented new preclinical data for CG-806 in a poster presentation at the 24th Congress of the EHA in Amsterdam, the Netherlands. The poster,
CG-806,  preclinical  in  vivo  efficacy  and  safety  profile  as  a  pan-FLT3  /  pan-BTK  inhibitor,  highlights  the  in  vivo  anti-leukemic  efficacy  of  CG-806  and  its  GLP
toxicology  and  toxicokinetic  profile.  In  a  preclinical  MV4-11  FLT3-ITD  AML  xenograft  mouse  model,  CG-806  suppressed  leukemia  growth  at  all  doses  tested
throughout the 28-day period of dosing. In the mice treated with 100 mg/kg, 5 of 11 (45%) were cured through day 120, and in the 300 mg/kg group, 10 of 11 (91%) of
the mice were cured. Retreating the “uncured’ mice in these two dose groups for an additional 28 days beginning on day 88 led to rapid and robust antitumor response in
all retreated mice through day 120. In the “re-treated” mice, no drug resistance and no toxicities were observed. GLP 28-day toxicology and TK studies mice and dogs
showed no adverse CG-806-related effects on body weight, ophthalmic, respiratory or neurological examinations, clinical pathology (coagulation, clinical chemistry, or
urinalysis),  organ  weight  or  macroscopic  evaluations.  No  CG-806-related  cardiovascular  effects  were  noted  in  the  28-day  GLP  toxicology  study  or  in  a  separate
preclinical cardiovascular safety study.

On  October  24,  2019,  we  presented  preclinical  data  in  a  poster  presentation  at  the  5th  International  Conference  on  Acute  Myeloid  Leukemia  “Molecular  and
Translational”  Advances  in  Biology  and  Treatment  in  Estoril,  Portugal.  The  poster,  CG-806  Pan-FLT3/Pan-BTK  Inhibitor  Simultaneously  Suppresses  Multiple
Oncogenic Signaling Pathways to Treat AML, highlighted that CG-806 acts on large xenograft tumors with no evidence of drug resistance and with no observed toxicity,
enhances  killing  of  patient-derived AML  and  B-cell  cancer  cells  when  combined  with  venetoclax,  and  retains  activity  in  patient-derived AML  cells  even  when  cells
harbor mutations of FLT3, IDH-1, NPM1, ASXL1 or p53.

37

 
 
 
 
 
 
 
 
·

·

On December 8 and 9, 2019, we presented new preclinical data in two separate poster presentations at the 61st Annual American Society of Hematology (“ASH”). On
December  8, 2019,  the  poster CG-806,  a  First-in-Class  Pan-FLT3/Pan-BTK  Inhibitor,  Exhibits  Broad  Signaling  Inhibition  in  Chronic  Lymphocytic  Leukemia  Cells
compared CG-806 and ibrutinib, the standard of care, on primary patient cells of CLL highlighting that CG-806 broadly inhibits B-cell receptor signaling in CLL cells,
resulting in CLL cell apoptosis and reduced proliferation, CG-806 is more potent than ibrutinib in inducing apoptosis of MEC1 CLL cells and, finally, CG-806 targets
elements  of  the CLL  microenvironment,  and  thereby  potentially  targets  pro-survival  signals  from  the  microenvironment. The  poster  presented  on  December  9,  2019
titled Synergistic Targeting of BTK and E-Selectin/CXCR4 in the Microenvironment of Mantle Cell Lymphomas, explored the effects of CG-806 on cells of MCL, a rare
subtype  of  aggressive  B  cell  non  Hodgkin  lymphoma  that  is  incurable with  standard  therapy,  and  investigated  the  molecular  mechanisms  of  acquired  resistance to
treatment,  highlighted  that  CG-806  demonstrated  superior  anti-lymphoma  effects  compared with ibrutinib, exerting potent cell growth inhibitory effects on ibrutinib-
resistant MCL  cells,  CG-806  suppresses  phospho-BTK,  -Stat3,  -AKT,  -ERK,  -Src,  NF-kB,  and  the  anti-apoptotic  protein  Mcl1,  while  upregulating  p53,  CG-806
increased autophagy in MCL cells, which may be associated with resistance to CG-806-mediated apoptosis. Inhibition of autophagy re-sensitizes MCL cells to CG-806-
induced  apoptosis,  CG-806  treatment  upregulates  CXCR4/E-selectin levels  in  MCL  cells  and  finally,  combination  of  CXCR4/E-selectin  antagonists  with  CG-806
enhances CG-806-induced apoptotic killing of MCL cells in the presence of the tumor microenvironment.

On  December  7,  2019  at  the  61st ASH Annual  Meeting  and  Exposition  in  Orlando,  FL Aptose  hosted  a  corporate  event  and  clinical  update,  where  the  company’s
management  and  invited  Key  Opinion  Leaders  highlighted  some  early  clinical  observations  on  safety,  tolerability,  pharmacokinetics,  and  activity,  including.  The
discussion focused on key findings from dose levels one and two of CG-806 in heavily pretreated R/R CLL patients, including: the clean safety profile to date, with no
myelosuppression, drug-related adverse events or dose-limiting toxicity observed; meaningful oral absorption and predictable pharmacokinetic (PK) profile; evidence of
target engagement manifesting as inhibition of Phospho-BTK, Phospho-SYK and Phospho-ERK in a plasma inhibitory assay (PIA) using plasma from the CLL patient
on  dose  level  two,  and  early  evidence  of  clinical  activity  in  the  same  patient  manifesting  as  increase  in  peripheral  blood  lymphocytes  (lymphocytosis),  typically
associated with BTK inhibition.  

APTO-253
Phase Ib Trial
APTO-253, a small molecule inhibitor of MYC gene expression, is being evaluated in a Phase Ib clinical trial in patients with R/R hematologic malignancies, particularly R/R-
AML and high-risk MDS. The Phase Ib, multicenter, open-label, dose-escalation clinical trial of APTO-253 is designed to assess the safety, tolerability, pharmacokinetics and
pharmacodynamic responses and efficacy of APTO-253 as a single agent and determine the recommended Phase II dose. APTO-253 is being administered once weekly, over a
28-day cycle. The dose escalation stage of the study could potentially enroll up to 20 patients with R/R-AML or high-risk MDS. The study is designed to then transition, as
appropriate, to single-agent expansion cohorts in R/R-AML and/or high-risk MDS.

38

 
 
 
 
 
As of the date of this report, we have eight active sites recruiting patients in the dose escalation stage of the trial. The first patient, having AML, was dosed with 20mg/m2 and
successfully completed the 28-day cycle. As only one patient was required at the first dose level, we then placed an MDS patient on the second dose level of 40mg/m2, and that
patient successfully completed the 28-day cycle. We then successfully fulfilled the third cohort with three patients completing the 28-day cycle at a dose level of 66mg/m 2.
Following review of relevant data and approval by our Clinical Safety Review Committee, we began enrolling patients into the fourth cohort at a dose level of 100mg/m2. At the
first  three  dose  levels,  we  observed  meaningful  reductions  in  MYC  expression  in  peripheral  blood  mononuclear  cells  (PBMCs)  from  patients  with  the  new  formulation  of
APTO-253.

We are continuing to manufacture additional drug substance and drug product for use in the ongoing trial. We completed manufacture of a second 2kg GMP batch of drug
substance and recently used that drug substance to complete the manufacture of a batch of GMP drug product.

We are exploring additional drug delivery methods for APTO-253 and plan to initiate additional non-clinical studies for solid tumor and hematologic cancer development. As
preparing,  submitting,  and  advancing  applications  for  regulatory  approval,  developing  drugs  and  drug  product  and  clinical  trials  are  sometimes  complex,  costly,  and  time-
consuming processes, an estimate of the future costs is not reasonable at this time.

As reported previously, APTO-253 was placed on clinical hold by the FDA in November 2015 due to deficiencies in the drug product that was manufactured prior to 2013.
Those shortcomings of the drug product were addressed and the clinical hold was lifted. More specifically, the Phase Ib trial of APTO-253 was placed on clinical hold as a
consequence of an event that occurred at a clinical site with during an infusion procedure that involved precipitation of the drug substance from the pre-2013 drug product.
Importantly, Aptose acted to withhold infusion of that batch of APTO-253 drug product and no patients were put at risk. Ultimately, a root cause investigation determined that
the event resulted from chemistry and manufacturing based issues. Consequently, Aptose manufactured a modified batch of API and formulated drug product, the details of
which were incorporated into a Chemistry, Manufacturing and Control amendment to the IND application.

Immediately upon occurrence of the infusion event, the Phase Ib trial was placed on clinical hold in order to solve a chemistry-based formulation issue, and the chemistry of the
API  and  the  formulation  had  undergone  minor  modifications  to  deliver  a  stable  and  soluble  drug  product  for  return  to  the  clinical  setting.  In  December  2016,  we  had
successfully manufactured multiple non-GMP batches of a new drug product formulation for APTO-253; however, a batch that was the intended clinical supply encountered an
unanticipated mishap during the filling process that compromised the stability of that batch of drug product. We conducted formal root cause analyses studies, identified the
reason  for  the  drug  product  stability  failure,  and  established  a  corrective  and  prevention  action  plan  for  the  manufacture  of  future  batches  of  drug  product.  During  the  first
quarter of 2018, we manufactured a new GMP clinical supply of drug product and performed studies required to demonstrate the fitness of the drug product for clinical usage.
The release specifications for the new clinical supply were met, and we presented the findings to the FDA in the second quarter of 2018.

On June 28, 2018, the FDA notified us that it had lifted the clinical hold on APTO-253 and the clinical trial was re-initiated on June 29, 2018.

We then completed all tasks required to return APTO-253 to the Phase Ib clinical trial.

Preclinical data presented at scientific forums are as follows:

·

·

·

On April 17, 2018, at the 2018 Annual Meeting of the AACR, we presented preclinical data demonstrating that APTO-253 is a new addition to the repertoire of drugs
that can exploit DNA BRCA1/2 deficiency, broadening the potential applicability of APTO-253 towards solid cancer indications.

On June 4, 2018, we announced that preclinical data elucidating the mechanism of action of APTO-253 were published in two separate articles in the June 2018 issue
(Volume 17, Number 6) of Molecular Cancer Therapeutics, a peer-reviewed journal of the AACR. The most important finding disclosed in the published articles is the
ability of the APTO-253 small molecule to bind to and stabilize a G-quadruplex DNA motif found in the promoter regulatory region of the MYC oncogene and to inhibit
expression of the MYC gene, thereby depleting the cells of the MYC oncoprotein and leading to cancer cell death. These findings make APTO-253 the only clinical
stage molecule that can directly target the MYC gene and inhibit its expression.

On April 1, 2019, at the 2019 Annual Meeting of the AACR, we presented in vitro studies that further define the mechanism of action of APTO-253. Researchers found
that APTO-253 targets a G-quadruplex motif in the P1/P2 promoter region of the MYC gene and inhibits MYC gene expression to induce apoptosis, resulting in its
ability to potently kill hematologic malignant cell lines and primary samples from AML and CLL patients. In this study, researchers performed long-term in vitro studies
to determine if and how cells might develop resistance to APTO-253. MYC driven Raji cells required three years in increasing concentrations of APTO-253 in order to
adopt  multiple  modifications  and  develop  high  level  resistance  to APTO-253.  These  modifications  include  up-regulation  of  the ABCG2  transporter,  acquisition  of  a
more stable MYC protein lacking the conserved core sequence of MYC Box III generated by deletion of an internal region of the MYC gene exon 2, and utilization of
alternate P3 promoter not inhibited by G4 binding and stabilization. Importantly, these studies confirmed the MYC gene as a target of APTO-253.

39

 
 
 
 
 
 
 
 
 
 
 
  
LIQUIDITY AND CAPITAL RESOURCES

We are an early stage development company and we currently do not earn any revenues from our drug candidates. The continuation of our research and development activities
and the commercialization of the targeted therapeutic products are dependent upon our ability to successfully finance and complete our research and development programs
through a combination of equity financing and payments from strategic partners. We have no current sources of significant payments from strategic partners.

Sources of liquidity:

The following table presents our cash and cash equivalents, investments and working capital as at December 31, 2019 and 2018.

(in thousands)
Cash and cash equivalents
Investments
Total

Working capital

Balances at 
December 31, 2019

Balances at 
December 31, 2018

  $

  $

  $

79,842    $
17,758     
97,600    $

93,227    $

15,299 
440 
15,739 

13,697 

Working capital represents primarily cash, cash equivalents, investments and other current assets less current liabilities. Current liabilities of approximately $5.5 million as at
December 31, 2019 included approximately $521 thousand related to the current portion of the Company’s lease liability. There was no comparable amount in current liabilities
of approximately $2.79 million as at December 31, 2018. See “Critical Accounting Policies” below.

We believe that our cash, cash equivalents and investments on hand at December 31, 2019 will be sufficient to finance our operations for at least 12 months from the issuance
date of these financial statements. Our cash needs for the next twelve months include estimates of the number of patients and rate of enrollment of our clinical trials, the amount
of drug product that we will require to support our clinical trials, and our general corporate overhead costs to support our operations,and our reliance on our manufacturers. We
have based these estimates on assumptions and plans which may change and which could impact the magnitude and/or timing of operating expenses and our cash runway. Since
our  inception,  we  have  financed  our  operations  and  technology  acquisitions  primarily  from  equity  financing,  proceeds  from  the  exercise  of  warrants  and  stock  options,  and
interest income on funds held for future investment. We expect that we will need to raise additional capital or incur indebtedness to continue to fund our operations in the future.
Our ability to raise additional funds could be affected by adverse market conditions, the status of our product pipeline and various other factors and we may be unable to raise
capital  when  needed,  or  on  terms  favorable  to  us.  If  necessary  funds  are  not  available,  we  may  have  to  delay,  reduce  the  scope  of,  or  eliminate  some  of  our  development
programs, potentially delaying the time to market for any of our product candidates.

40

 
 
 
 
 
 
 
 
   
 
   
      
  
  
 
 
Cash flows:

The following table presents a summary of our cash flows for the years ended December 31, 2019 and 2018:

(in thousands)

Net cash provided by (used in):

Operating activities
Investing activities
Financing activities
Effect of exchange rates changes on cash and cash equivalents

Net increase in cash and cash equivalents

Cash used in operating activities:

For the Years Ended,

December 31, 2019

December 31, 2018

  $

  $

(21,558)   $
(17,370)    
103,448     
23     
64,543    $

(23,207)
12 
27,871 
(8)
4,668 

Our cash used from operating activities for the years ended December 31, 2019 and 2018 was approximately $21.6 million and $23.2 million, respectively. Our uses of cash for
operating activities for both years primarily consisted of salaries and wages for our employees, facility and facility-related costs for our offices and laboratories, fees paid in
connection with preclinical and clinical studies, drug manufacturing costs, laboratory supplies and materials, and professional fees. In the year ended December 31, 2018, our
use of cash from operating activities also included $5.0 million in license fees to CG for development and commercialization rights to CG-806 for all territories outside of South
Korea.

We do not expect to generate positive cash flow from operations for the foreseeable future due to additional research and development costs, including costs related to drug
discovery, preclinical testing, clinical trials, and manufacturing, as well as operating expenses associated with supporting these activities, and potential milestone payment to our
collaborators.  It  is  expected  that  negative  cash  flow  will  continue  until  such  time,  if  ever,  that  we  receive  regulatory  approval  to  commercialize  any  of  our  products  under
development and/or royalty or milestone revenue from any such products exceeds expenses.

Cash flow from investing activities:

Our cash used by investing activities for the year ended December 31, 2019 was $17.4 million, and consisted of net purchases of investments of $17.3 million and purchases of
property and equipment of $102 thousand. Our cash provided by investing activities in the year ended December 31, 2018 was $12 thousand, and consisted of maturities of
investments of $341 thousand and offset by purchases of property and equipment of $329 thousand. The composition and mix of cash, cash equivalents and investments is based
on our evaluation of conditions in financial markets and our near-term liquidity needs. We have exposure to credit risk, liquidity risk and market risk related to our investments.
The  Company  manages  credit  risk  associated  with  its  cash  and  cash  equivalents  and  investments  by  maintaining  minimum  standards  of  R1-low  or A-low  investments.  The
Company invests only in highly rated corporations which are capable of prompt liquidation. The Company manages its liquidity risk by continuously monitoring forecasts and
actual cash flows. The Company is subject to interest rate risk on its cash and cash equivalents and investments. The Company does not believe that the results of operations or
cash flows would be affected to any significant degree by a sudden change in market interest rates relative to interest rates on the investments, owing to the relative short-term
nature of the investments.

41

 
 
 
 
 
 
 
 
   
   
   
      
  
   
   
   
 
 
 
 
 
 
Cash flow from financing activities:

Our cash flow from financing activities for the years ended December 31, 2019 and 2018 was approximately $103.4 million and $27.9 million, respectively. During the year
ended December 31, 2019, we raised net proceeds of approximately $88.2 million from two confidentially marketed public offerings, approximately $14.4 million from the
issuance of Common Shares pursuant to the 2018 and 2019 Purchase Agreements (as defined below), $178 thousand from the issuance of Common Shares pursuant to the 2019
ATM Facility (as defined below) and $718 thousand from the issuance of Common Shares pursuant to exercise of employee stock options. During the year ended December 31,
2018, we raised net proceeds of approximately $16.9 million from the issuance of Common Shares pursuant to the 2017 and 2018 Purchase Agreements (as defined below),
$10.7 million from the issuance of Common Shares pursuant to the 2018 ATM Facility (as defined below) and $240 thousand from the issuance of Common Shares pursuant to
exercise of employee stock options.

On June 3, 2019, we completed a confidentially marketed public offering through the issuance of 11,500,000 Common Shares at a price of $1.85 per Common Share, which
included the exercise in full by the underwriters of their option to purchase 1,500,000 additional Common Shares. The gross proceeds from the offering were approximately
$21.3 million ($19.6 million net of share-issue costs).

On December 19, 2019, we completed a confidentially marketed public offering through the issuance of 18,543,750 Common Shares at a price of $4.00 per Common Share,
which  included  the  exercise  in  full  by  the  underwriters  of  their  option  to  purchase  2,418,750  additional  Common  Shares.  The  gross  proceeds  from  the  offering  were
approximately $74.2 million. ($68.6 million net of share-issue costs).

On October 27, 2017, we entered into a Common Share Purchase Agreement (the “2017 Purchase Agreement”) with Aspire Capital Fund, LLC (“Aspire Capital”) to sell up to
$15.5 million of Common Shares to Aspire Capital. We issued 321,429 Common Shares at a value of $1.40 per share to Aspire Capital as consideration for Aspire Capital
entering into the 2017 Purchase Agreement. Under the terms of the 2017 Purchase Agreement, in October 2017, Aspire Capital made an initial purchase of 357,143 Common
Shares at a price of $1.40 per share, representing gross proceeds of approximately $500.0 thousand ($324.0 thousand net of share issue costs). During the year ended December
31, 2018, we issued 5,231,953 Common Shares under the 2017 Purchase Agreement at an average price of $2.87 for gross and net proceeds of approximately $15 million. On a
cumulative basis, we raised a total of $15.5 million in gross proceeds under the 2017 Purchase Agreement, the maximum amount that was available under the 2017 Purchase
Agreement.

On May 30, 2018, we entered into a second Common Share Purchase Agreement (the “2018 Purchase Agreement”) with Aspire Capital to sell up to $20.0 million of Common
Shares to Aspire Capital. Under the terms of the 2018 Purchase Agreement, we issued 170,261 Common Shares at a value of $3.524 per share to Aspire Capital as consideration
for Aspire Capital entering into the 2018 Purchase Agreement and, during the year ended December 31, 2018, we issued 907,547 Common Shares at an average price of $2.12
per  share  for  gross  and  net  proceeds  of  approximately  $1.9  million.  During  the  year  ended  December  31,  2019,  the  Company  issued  5,502,433  additional  Common  Shares
under the 2018 Purchase Agreement at an average price of $1.82 per share for gross and net proceeds of $10 million. On a cumulative basis to May 24, 2019, we raised a total
of approximately $11.9 million gross proceeds and issued 6,409,980 Common Shares, the maximum number of shares issuable under this facility without shareholder approval.

On May 7, 2019, we entered into a third Common Share Purchase Agreement (the “2019 Purchase Agreement”) with Aspire Capital to sell up to $20.0 million of Common
Shares to Aspire Capital. Under the terms of the 2019 Purchase Agreement, Aspire Capital has committed to purchase up to an aggregate of $20.0 million of our Common
Shares, at our request from time to time during a 30-month period beginning on the effective date of a registration statement related to the transaction and at prices based on the
market price at the time of each sale. Under the terms of the 2019 Purchase Agreement, we issued 171,428 Common Shares at a value of $2.10 per share to Aspire Capital as
consideration for Aspire Capital entering into the 2019 Purchase Agreement, and during the year ended December 31, 2019, we issued 1,800,000 Common Shares at an average
price of $2.43 per share for gross and net proceeds of approximately $4.37 million. The 2019 Purchase Agreement was terminated on December 16, 2019.

On March 27, 2018, we entered into an at-the-market equity facility (the “2018 ATM Facility”) with Cantor Fitzgerald & Co (“Cantor Fitzgerald”), acting as sole agent. Under
the terms of this facility, we could, from time to time, sell Common Shares having an aggregate offering value of up to $30 million through Cantor Fitzgerald. We determined,
at our sole discretion, the timing and number of shares to be sold under the 2018 ATM Facility. During the year ended December 31, 2018, we issued 4,085,615 Common
Shares under the 2018 ATM Facility at an average price of $2.71 per share for gross proceeds of approximately $11 million ($10.7 million net of share issue costs). During the
period from January 1, 2019 to May 24, 2019, the date the 2018 ATM Facility was terminated, the Company issued 77,349 shares under the 2018 ATM Facility at an average
price of $2.37 per share for gross proceeds of $183 thousand ($178 thousand net of share issue costs). Costs associated with the proceeds consisted of a 3% cash commission.
On a cumulative basis to May 24, 2019, the Company raised a total of $11.2 million gross proceeds ($10.9 million net of share issue costs) under the 2018 ATM Facility.

On May 24, 2019, we entered into an at-the-market equity facility (the “2019 ATM Facility”) with Piper Jaffray & Co. (now Piper Sandler Companies) and Canaccord Genuity
LLC,  acting  as  co-agents.  The  2019 ATM  Facility  replaced  the  2018 ATM  Facility  that  we  had  entered  into  with  Cantor  Fitzgerald.  The  2019 ATM  Facility  allowed  us  to
instruct our co-agents to offer up to approximately 20.2 million Common Shares, having an aggregate offering value of up to $40.0 million, at the prevailing market price from
time to time. The Company did not issue any shares under the 2019 ATM Facility, and on December 16, 2019, the Company terminated the 2019 ATM Facility.

42

 
 
 
 
 
 
 
 
 
 
Contractual Obligations and Off Balance Sheet Financing

At December 31, 2019, we had contractual obligations requiring annual payments as follows:

Operating leases (1)

Less than 1 year

1 – 3 years

3 – 5 years

Greater than 5 years

Total

  $

534 

  $

1,008    $

119    $

—    $

1,661 

(1) Consists primarily of lease obligations for our executive offices in San Diego, California, our Headquarters in Toronto, Ontario, and a research facility located in San Diego,

California.

The table above does not include certain general and administrative and development support services under agreements we can cancel without significant penalty.

As at December 31, 2019, we have not entered into any off-balance sheet arrangements. The Company enters into research, development and license agreements in the ordinary
course of business where the Company receives research services and rights to proprietary technologies. Milestone and royalty payments that may become due under various
agreements are dependent on, among other factors, clinical trials, regulatory approvals and ultimately the successful development of a new drug, the outcome and timing of
which is uncertain.

Under the license agreement with CG, the Company has obligations for development milestones of $16 million related to the initiation of Phase II and pivotal clinical trials, and
regulatory milestones totaling $44 million. The Company also has an obligation to pay royalty payments on sales of commercialized product. The timing of any milestone or
royalty payments that may become due is not yet determinable.

On June 13, 2018, we entered into a license agreement with CG to gain an exclusive license to CG-806 in China (including the People’s Republic of China, Hong Kong and
Macau). The Company has future obligations of development milestones of $6 million related to approval of an IND and to the initiation of Phase II and pivotal clinical trials,
and regulatory milestones totaling $20 million. The Company also has an obligation to pay sales milestones and royalty payments on sales of commercialized product. The
timing of any milestone or royalty payments that may become due is not yet determinable.

RESULTS OF OPERATIONS

A summary of the results of operations for the years ended December 31, 2019 and 2018 is presented below:

(in thousands except per common share data)

Revenues
Research and development expenses
General and administrative expenses
Net finance income
Net loss
Unrealized gain on securities available-for-sale
Total comprehensive loss
Basic and diluted loss per common share

Year ended December 31,

2019

2018

—    $
16,835     
10,022     
580     
(26,277)   $
18     
(26,259)   $
(0.52)   $

— 
18,733 
10,374 
239 
(28,868)
— 
(28,868)
(0.86)

  $

  $

  $
  $

Net loss of $26.3 million for the year ended December 31, 2019 decreased by approximately $2.6 million as compared with $28.9 million for the year ended December 31,
2018, primarily as a result of a decline in research and development expenses of $5.0 million in license fees paid to CG for development and commercial rights of CG-806 in
fiscal 2018 and a decrease in stock option compensation expense of approximately $2.0 million, offset by increased expenditures of approximately $3.7 million on our CG-806
and 253 development programs, reflecting program costs and related labor and higher cash-based general and administrative expenses of $1 million in the year ended December
31, 2019. The net loss was also lower in 2019 due to higher net finance income, which increased by $341 thousand compared to 2018, mostly as a result of higher interest earned
on larger balances of cash equivalents and investments held during the year ended December 31, 2019.

43

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
      
  
 
 
Research and Development Expenses

The research and development expenses for the years ended December 31, 2019 and 2018 were as follows:

(in thousands)

License fees – CG-806
Program costs – CG-806
Program costs – APTO-253
Personnel expenses
Stock-based compensation
Depreciation of equipment

Year ended December 31,

2019

2018

  $

  $

—    $
8,475     
4,177     
3,679     
474     
30     
16,835    $

5,000 
6,119 
4,490 
2,063 
1,026 
35 
18,733 

Research and development expenses of $16.8 million for the year ended December 31, 2019, decreased by approximately $1.9 million compared with $18.7 million for the
prior year, primarily as a result of the following events:

·

·

·

·

·

License fees paid in the year ended December 31, 2018 to CG of $2.0 million for development and commercial rights of CG-806 in all territories outside of
Korea and China, and a further $3.0 million paid for development and commercial rights of CG-806 in China. CG is eligible for development, regulatory and
commercial-based milestones as well as royalties on future product sales. There were no license fees paid to CG or other collaborators in the year ended
December 31, 2019.

An increase in research and development activities related to our CG-806 development program of approximately $2.4 million, mostly as a result of increases
to our clinical trial operating costs for our CG-806 BCM phase Ib clinical trial and planned CG-806 AML phase I clinical trial. For the year ended December
31, 2019, program costs consisted mostly of manufacturing costs to supply our clinical trials, operating costs to conduct our CG-806 BCM phase Ib clinical
trial, which was approved by the FDA in March 2019, as well as preparation costs for our planned CG-806 AML clinical trial. For the year ended December 31,
2018, program costs consisted mostly of manufacturing costs to supply our clinical trials, for preclinical studies to support the IND application we filed in
February of 2019 to test CG-806 in patients with BCM, and for consultant and CRO costs to prepare for the CG-806 BCM trial.

A decrease in research and development activities related to our APTO-253 development program of approximately $313 thousand related to lower
manufacturing costs to supply the trial, and offset by an increase in costs associated with conducted the phase Ia/b clinical trial for APTO-253. For both the
fiscal years ended December 31, 2018 and 2019, program costs consisted of costs for manufacturing APTO-253 to supply the trial, and for operating costs to
conduct the ongoing phase Ib clinical trial. The APTO-253 clinical trial, which had been on a clinical hold since November 2015 was taken off clinical hold in
June 2018.

An increase in personnel expenses of $1.6 million in the year ended December 31, 2019, as compared with prior year mostly related to additional clinical
research staff to support two Phase I clinical trials. At December 31, 2019, we had 23 employees in research and development, including clinical operations as
compared to 16 employees as at December 31, 2018.

A decrease in stock option compensation of approximately $552 in the year ended December 31, 2019, related mostly to higher forfeitures in the year ended
December 31, 2019, as well faster vesting of certain stock options granted in the period ended December 31, 2018. In the three-month period ended March 31,
2018, 100,000 stock options with a grant date fair value of $2.03 vested immediately, contributing to higher expenses in that period.

General and Administrative Expenses

The general and administrative expenses for the years ended December 31, 2019 and 2018 are as follows:

44

 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(in thousands)

General and administrative, excluding items below:
Stock-based compensation
Depreciation of equipment

Year ended December 31,

2019

2018

  $

  $

8,078    $
1,822     
122     
10,022    $

7,071 
3,250 
53 
10,374 

General and administrative expenses of $10.0 million for the year ended December 31, 2019, decreased by approximately $352 thousand as compared with $10.4 million for the
prior year. Changes to the components of our general and administrative expenses presented in the table above are primarily as a result of the following:

·

·

General and administrative expenses, other than stock-based compensation and depreciation of equipment increased by approximately $1.0 million to $8.1 million for the
year  ended  December  31,  2019,  primarily  as  a  result  of  higher  compensation  costs,  increased  travel,  rent,  consulting  and  office  administrative  costs  associated  with
additional employees to support increased operations of the Company, and offset by lower professional and regulatory costs.

Stock-based compensation decreased for the year ended December 31, 2019, by approximately $1.4 million compared with the year ended December 31, 2018, mostly
related to faster vesting of certain stock options granted in 2018 when 850,000 of the approximately 1.7 million stock options granted had immediate vesting.

CRITICAL ACCOUNTING POLICIES

Critical Accounting Policies and Estimates

We periodically review our financial reporting and disclosure practices and accounting policies to ensure that they provide accurate and transparent information relative to the
current  economic  and  business  environment. As  part  of  this  process,  we  have  reviewed  our  selection,  application  and  communication  of  critical  accounting  policies  and
financial disclosures. Management has discussed the development and selection of the critical accounting policies with the Audit Committee of the Board of Directors and the
Audit Committee has reviewed the disclosure relating to critical accounting policies in this MD&A.

Significant accounting judgments and estimates

Management’s assessment of our ability to continue as a going concern involves making a judgment, at a particular point in time, about inherently uncertain future outcomes
and events or conditions. Please see the “Liquidity and Capital Resources” section in this document for a discussion of the factors considered by management in arriving at its
assessment.

Other important accounting policies and estimates made by management are the valuation of contingent liabilities, the valuation of tax accounts, and the assumptions used in
determining the valuation of share-based compensation.

Valuation of contingent liabilities:

The Company utilizes considerable judgment in the measurement and recognition of provisions and the Company’s exposure to contingent liabilities. Judgment is required to
assess and determine the likelihood that any potential or pending litigation or any and all potential claims against the Company may be successful. The Company must estimate
if an obligation is probable, as well as quantify the possible economic cost of any claim or contingent liability. Such judgments and assumptions are inherently uncertain. The
increase or decrease of one of these assumptions could materially increase or decrease the fair value of the liability and the associated expense.

Valuation of tax accounts:

Uncertainties exist with respect to the interpretation of complex tax regulations and the amount and timing of future taxable income. Currently, the Company has deductible
temporary differences which would create a deferred tax asset. Deferred tax assets are recognized for all deductible temporary differences to the extent that it is probable that
future taxable profit will be available against which the deductible temporary differences can be utilized. Management judgment is required to determine the amount of deferred
tax assets that can be recognized, based upon the likely timing and the level of future taxable profits together with future tax planning strategies. To date, the Company has
determined that none of its deferred tax assets should be recognized. The Company’s deferred tax assets are mainly comprised of its net operating losses from prior years and
prior year research and development expenses not yet deducted for income tax purposes. These tax pools relate to entities that have a history of losses, have varying expiry
dates, and may not be used to offset taxable income. As well, there are no taxable temporary differences or any tax planning opportunities available that could partly support the
recognition of these losses as deferred tax assets. The generation of future taxable income could result in the recognition of some portion or all of the remaining benefits, which
could result in an improvement in the Company’s results of operations through the recovery of future income taxes.

45

 
 
 
 
 
 
 
 
   
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
Valuation of share based compensation

Management measures the costs for share based payments using market based option valuation techniques. Assumptions are made and judgment is used in applying valuation
techniques. These assumptions and judgments include estimating the future volatility of the share price, expected dividend yield, and expected life of the options. The Company
uses historical data to estimate the expected dividend yield and expected volatility of its Common Shares in determining the fair value of stock options. The expected life of the
options  represents  the  estimated  length  of  time  the  options  are  expected  to  remain  outstanding.  Such  judgments  and  assumptions  are  inherently  uncertain.  The  increase  or
decrease  of  one  of  these  assumptions  could  materially  increase  or  decrease  the  fair  value  of  share  based  payments  and  share  purchase  warrants  issued  and  the  associated
expense.

The  weighted  average  assumptions  that  were  used  in  the  Black  Scholes  option  pricing  model  to  determine  the  fair  value  of  stock  options  granted  during  the  periods  ended
December 31, 2019 and 2018, respectively, are presented in Note 11 to the consolidated financial statements.

Leases

Effective  January  1,  2019,  the  Company  adopted  Financial  Accounting  Standards  Board,  or  FASB,  standard  ASU  No.  2016-02,  “Leases  (Topic  842)”.  The  Company’s
operating leases of tangible property with terms greater than twelve months are recognized as right of use assets, which represents the lessee’s right to use, or control the use of,
a specified asset for the lease term, and a corresponding lease liability, which represents the lessee’s obligation to make lease payments under a lease, measured on a discounted
basis. The Company adopted the new standard using the alternative transition method, which permits a company to use its effective date as the date of initial application without
restating comparative period financial statements. Landlord inducements in the form of free rent periods are netted against lease payments to the landlord in measuring right-of-
use assets and lease liabilities.

Impact of adoption:

As a result of adopting Topic 842, we recorded as of January 1, 2019, a right of use asset of approximately $1.570 million, and a lease liability of approximately $1.647 million.
Upon adoption, landlord inducements of approximately $78 thousand were de-recognized, and a corresponding adjustment was made to right-of-use assets.

Updated share information

As  at  March  10,  2020,  we  had  76,269,806  Common  Shares  issued  and  outstanding.  In  addition,  there  were  11,597,968  Common  Shares  issuable  upon  the  exercise  of
11,557,968 outstanding stock options and upon the vesting of 40,000 outstanding restricted share units.

 ITEM 7A. QUALITATIVE AND QUANTITATIVE DISCLOSURES ABOUT MARKET RISK

Under SEC rules and regulations, as a smaller reporting company, we are not required to provide this information.

 ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The financial statements required by this item are included in the Exhibits to this Annual Report on Form 10-K.

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

None.

46

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 ITEM 9A. CONTROLS AND PROCEDURES

As of the end of our fiscal year ended December 31, 2019, an evaluation of the effectiveness of our “disclosure controls and procedures” (as such term is defined in Rules 13a-
15(e) and 15d-15(e) under the United States Securities Exchange Act of 1934) was carried out by our management, with the participation of our principal executive officer and
principal financial officer. Based upon that evaluation, our principal executive officer and principal financial officer have concluded that as of the end of that fiscal year, our
disclosure controls and procedures are effective to ensure that information required to be disclosed by us in reports that we file or submit under the Exchange Act is (i)
recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms and (ii) accumulated and
communicated to our management, including our principal executive officer and principal financial officers, to allow timely decisions regarding required disclosure.

It should be noted that while our principal executive officer and principal financial officer believe that our disclosure controls and procedures provide a reasonable level of
assurance that they are effective, they do not expect that our disclosure controls and procedures or internal control over financial reporting will prevent all errors or fraud. A
control system, no matter how well conceived or operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met.

Our  management  is  responsible  for  establishing  and  maintaining  adequate  internal  control  over  financial  reporting  as  such  term  is  defined  in  Exchange Act  Rule  13a-15(f).
Internal  control  over  financial  reporting  is  a  process  designed  under  the  supervision  and  with  the  participation  of  our  management,  including  our  principal  executive  and
financial officer, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance
with accounting principles generally accepted in the United States of America.

As of December 31, 2019, our management assessed the effectiveness of our internal control over financial reporting using the criteria set forth by the Committee of Sponsoring
Organizations  of  the  Treadway  Commission  in  Internal  Control-Integrated  Framework  (2013  Framework).  Based  on  this  assessment,  our  management  concluded  that,  as  of
December 31, 2019, our internal control over financial reporting was effective based on those criteria. We are an “emerging growth company,” as defined in the JOBS Act. For
as  long  as  we  continue  to  be  an  emerging  growth  company,  we  may  take  advantage  of  exemptions  from  various  reporting  requirements  that  are  applicable  to  other  public
companies that are not emerging growth companies, including not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act.

CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

There were no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) under the 1934 Act) during our fiscal quarter ended December 31, 2019, that
have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

 ITEM 9B. OTHER INFORMATION

None.

 PART III.

Certain information required by Part III of this Annual Report on Form 10-K is omitted from this report because we are incorporating by reference to the definitive Proxy
Statement for our 2020 Annual Meeting of Shareholders, referred to as the Proxy Statement, which will be filed with the SEC within 120 days of the 2019 fiscal year-end.

 ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

The information required by this item is incorporated herein by reference to the information from the Proxy Statement under the sections entitled “Election of Directors,”
“Nomination of Directors,” and “Corporate Governance – Board Committees” and except for the information required with respect to our executive officers, which has been
included under the heading “Executive Officers” in Item 1, Part I of this Form 10-K, and is incorporated herein by reference, and except for information on our code of ethics:

We have adopted a code of ethics for directors, officers (including our principal executive officer, principal financial officer and principal accounting officer) and employees,
known  as  the  Code  of  Business  Conduct  and  Ethics.  The  Code  of  Business  Conduct  and  Ethics  is  available  on  our  website  at  http://www.aptose.com  under  the  Corporate
Governance  section  of  our  Investor  Relations  page.  We  will  promptly  disclose  on  our  website  (i)  the  nature  of  any  amendment  to  the  policy  that  applies  to  our  principal
executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions and (ii) the nature of any waiver, including an
implicit waiver, from a provision of the policy that is granted to one of these specified individuals that is required to be disclosed pursuant to SEC rules and regulations, the
name of such person who is granted the waiver and the date of the waiver.

47

 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 ITEM 11. EXECUTIVE COMPENSATION

The information required by this item is incorporated herein by reference to the information from the Proxy Statement under the sections entitled “Executive Compensation,”
and “Director Compensation.”

 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 the information from the Proxy Statement under the sections entitled “Share Ownership of Certain
Beneficial Owners, Management and Directors” and “Equity Compensation Plan Information.”

 ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AN DIRECTOR INDEPENDENCE

The information required by this item is incorporated herein by reference to the information from the Proxy Statement under the sections entitled “Corporate Governance -
Independence of the Board” and “Interest of Related Persons in Transactions.”

 ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

The information required by this item is incorporated herein by reference to the information from the Proxy Statement under the section entitled “Audit, Audit-Related, Tax and
Other Fees” and “Pre-Approval Policies and Procedures.”

 ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a) Documents filed as part of this report.

1. Financial Statements. We have filed the following documents as part of this Annual Report:

 PART IV.

Report of Independent Registered Public Accounting Firm
Balance Sheets
Statements of Operations and Comprehensive Loss
Statements of Shareholders’ Equity
Statements of Cash Flows
Notes to Financial Statements

2. Financial Statement Schedules.

Page
F-1
F-2
F-3
F-4
F-5
F-6

All schedules are omitted because they are not applicable or the required information is shown in the Financial Statements or notes thereto.

(b) Exhibits

The following exhibits are filed as part of, or incorporated by reference into, this report:

Exhibit
Number

3.1

3.2

4.1*

Articles of Incorporation, Arrangement and Amendment (incorporated herein by reference to Exhibit 99.3 to the Company’s Current Report on Form 6-K filed
with the SEC on June 12, 2015)

By-law #2 of the Company (incorporated herein by reference to Exhibit 99.2 to the Company’s Current Report on Form 6-K filed with the SEC on June 12,
2015)

Description of Document

Description of Securities

48

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
Number

Description of Document

10.1

10.2+

10.3+

10.4+

10.5+

10.6+

10.7+*

10.8^^

10.9^

10.10

10.11

10.12

10.13

10.14^

21.1*

23.1*

24.1*

31.1*

31.2*

32.1*

32.2*

101**

Indemnification Agreement dated July 10, 2007 between Lorus Therapeutics Inc. and the Company (incorporated herein by reference to Exhibit  99.1 to the
Company’s Current Report on Form 6-K filed with the SEC on September 4, 2007)

Amended and Restated Executive Employment Agreement between the Company and Dr. William G. Rice dated August  19, 2014 (incorporated herein by
reference to Exhibit 4.9A to the Company’s Annual Report on Form 20-F filed with the SEC on March 4, 2015)

Executive Employment Agreement between the Company and Gregory K. Chow dated November 29, 2013 (incorporated herein by reference to Exhibit 4.9.1
to the Company’s Annual Report on Form 20-F filed with the SEC on May 16, 2014)

Share Option Plan as amended May 5, 2015 (incorporated herein by reference to Exhibit 99.2 to the Company’s Current Report on Form 6-K filed with the
SEC on June 12, 2015)

Stock Incentive Plan as adopted May 5, 2015 (incorporated herein by reference to Exhibit 99.1 to the Company’s Current Report on Form 6-K filed with the
SEC on June 12, 2015)

Form of Executive Employment Agreement, dated June 3, 2019, between the Company and Dr. Jotin Marango (incorporated herein by reference to Exhibit
10.4 to the Company’s Quarterly Report filed on Form 10-Q on August 6, 2019)

Form of Executive Employment Agreement, dated December 4, 2019, between the Company and Dr. Rafael Bejar

License agreement dated June 13, 2018 by and between the Company and CrystalGenomics, Inc. (incorporated herein by reference to Exhibit 1.1 to the
Company’s Current Report on Form 6-K filed with the SEC filed on June 22, 2018)

Option and License Agreement between the Company and CrystalGenomics, Inc. dated March 21, 2016 (incorporated herein by reference on Form 10-KA/3
filed with the SEC on April 22, 2019)

Amendment to Option and License Agreement between the Company and CrystalGenomics, Inc., dated April 26, 2016 (incorporated herein by reference to
Exhibit 99.2 to the Company’s Current Report on Form 6-K filed with the SEC on June 8, 2016)

Second Amendment to Option and License Agreement between the Company and CrystalGenomics, Inc., dated May 13, 2016 (incorporated herein by
reference to Exhibit 99.3 to the Company’s Current Report on Form 6-K filed with the SEC on June 8, 2016)

Third Amendment to Option and License Agreement between the Company and CrystalGenomics, Inc., dated May 19, 2016 (incorporated herein by reference
to Exhibit 99.4 to the Company’s Current Report on Form 6-K filed with the SEC on June 8, 2016)

Fourth Amendment to Option and License Agreement between the Company and CrystalGenomics, Inc., dated June 1, 2016 (incorporated herein by reference
to Exhibit 99.5 to the Company’s Current Report on Form 6-K filed with the SEC on June 8, 2016)

License Agreement dated as of March 6, 2018 between the Company and Ohm Oncology Inc. (incorporated herein by reference on Form 10-KA/3 filed with
the SEC on April 22, 2019)

List of Subsidiaries

Consent of Independent Registered Public Accounting Firm (KPMG)

Powers of Attorney (included on signature page)

Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002.

Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002.

Certification of Principal 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 Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

The following consolidated financial statements from the Aptose Biosciences Inc. Annual Report on Form 10-K for the year ended December 31, 2019,
formatted in Inline Extensible Business Reporting Language (Inline XBRL): (i) statements of operations and comprehensive loss, (ii) balance sheets, (iii)
statements of changes of shareholders’ equity, (iv) statements of cash flows, and (v) the notes to the financial statements.

104*

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

+

*

^

^^

**

Indicates management contract or compensatory plan.

Filed herewith.

Portions of this exhibit have been omitted pursuant to Rule 601(b)(10) of Regulation S-K.

Confidential treatment has been granted with respect to certain portions of this exhibit. Omitted portions have been filed separately with the Securities and
Exchange Commission.

In accordance with Rule 406T of Regulation S-T, the Inline XBRL related information in Exhibit 101 to this Annual Report on Form 10-K is deemed not filed
or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act, is deemed not filed for purposes of Section 18 of the
Exchange Act, and otherwise is not subject to liability under these sections.

49

 
  
 
 
 
 ITEM 16. FORM 10-K SUMMARY

None.

50

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the requirements of the Securities Act, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in

the City of San Diego, State of California, on the 10th day of March, 2020.

Aptose Biosciences Inc.  

/s/ William G. Rice

 SIGNATURES

By:

William G. Rice, Ph.D.
President, Chief Executive Officer and Chairman of the Board of Directors

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Dr. William G. Rice and Mr. Gregory K. Chow,
and each of them, his or her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead,
in  any  and  all  capacities,  to  sign  any  and  all  amendments  (including  post-effective  amendments)  to  this  report,  and  to  file  the  same,  with  all  exhibits  thereto,  and  other
documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to
do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in
person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or either of them, or their or his substitutes or substitute, may lawfully do or cause to be done
by virtue hereof.

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

Signature

Title

/s/ William G. Rice
William G. Rice, Ph.D.

/s/ Gregory K. Chow
Gregory K. Chow

/s/ Denis R. Burger
Denis R. Burger, Ph.D.

/s/ Carol G. Ashe
Carol G. Ashe

/s/ Caroline Loewy
Caroline Loewy

/s/ Erich M. Platzer
Erich M. Platzer, M.D., Ph.D.

/s/ Mark D. Vincent
Mark D.Vincent, M.D.

/s/ Warren Whitehead
Warren Whitehead

  President, Chief Executive Officer and Chairman of the Board of Directors (Principal

Executive Officer)

  Senior Vice President and Chief Financial Officer (Principal Financial Officer and

Accounting Officer)

  Director, Lead Independent

  Director

  Director

  Director

  Director

  Director

51

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
   
   
 
   
   
 
   
   
 
   
   
 
   
   
 
   
   
 
 
 
 
 
 
Consolidated Financial Statements

APTOSE BIOSCIENCES INC.

Years ended December 31, 2019 and 2018

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
KPMG LLP
100 New Park Place, Suite 1400 Vaughan, ON L4K 0J3
Tel 905-265 5900
Fax 905-265 6390
www.kpmg.ca

To the Stockholders and Board of Directors Aptose Biosciences Inc.

Opinion on the Consolidated Financial Statements

Report of Independent Registered Public Accounting Firm

We have audited the accompanying consolidated statements of financial position of Aptose Biosciences Inc. (the “Company”) as of December 31, 2019 and 2018, the related
consolidated statements of loss and comprehensive loss, changes in shareholders’ equity, and cash flows for each of the years in the two-year period ended December 31, 2019,
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, 2019 and 2018, and the results of its operations and its cash flows for each of the years in the two-year period ended
December 31, 2019, in conformity with U.S. generally accepted accounting principles.

Change in Accounting Principle

As discussed in Note 2 to the consolidated financial statements, the Company has changed its method of accounting for leases on January 1, 2019, due to the adoption of
Financial Accounting Standards Board, ASU No. 2016-02, Leases (Topic 842).

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 audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to
be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange
Commission and the PCAOB.

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

Our audits included performing procedures to assess the risks of material misstatement of the 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 audits 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 audits provide a reasonable basis for our opinion.

We have served as the Company’s auditor since 2003.

Chartered Professional Accountants, Licensed Public Accountants
Vaughan, Canada
March 10, 2020

KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (“KPMG
International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

F-1

  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 APTOSE BIOSCIENCES INC.
Consolidated Statements of Financial Position
(Expressed in thousands of US dollars)

Assets
Current assets:

Cash and cash equivalents
Investments
Prepaid expenses
Other current assets
Total current assets

Non-current assets:

Property and equipment
Right-of-use assets, operating leases
Total non-current assets

Total assets

Liabilities and Shareholders’ Equity
Current liabilities:

Accounts payable
Accrued liabilities
Current portion of lease liability, operating leases
Total current liabilities 

Non-current liabilities:

Lease liability, operating leases
Total liabilities

Shareholders’ equity:

Share capital:

Common shares, no par value, unlimited authorized shares, 76,108,031 and 38,161,808 shares issued and outstanding
at December 31, 2019 and December 31, 2018
Additional paid-in capital

Accumulated other comprehensive loss
Deficit
Total shareholders’ equity

Total liabilities and shareholders’ equity

See accompanying notes to consolidated financial statements
Subsequent events (note 16)

F-2

  $

  $

  $

December 31, 

December 31,

2019   

2018  

79,842    $
17,758     
1,025     
141     
98,766     

334     
1,376     
1,710     

15,299 
440 
646 
101 
16,486 

384 
- 
384 

100,476    $

16,870 

1,960    $
3,058     
521     
5,539     

1,011     
6,550     

1,315 
1,474 
- 
2,789 

- 
2,789 

365,490     
34,649     
(4,298)    
(301,915)    
93,926     

261,072 
32,963 
(4,316)
(275,638)
14,081 

  $

100,476    $

16,870 

 
 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
 
 
      
  
 
 
 
      
  
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
 
 
 
 
 
 
      
  
 
 
 APTOSE BIOSCIENCES INC.
Consolidated Statements of Loss and Comprehensive Loss
(Expressed in thousands of US dollars, except for per common share data)

Revenue

Expenses:

Research and development
General and administrative
Operating expenses

Other income (expense):

Interest income
Foreign exchange gain/(loss)
Total other income

Net loss

Other comprehensive loss:
Unrealized gain on securities available-for-sale
Total comprehensive loss

Basic and diluted loss per common share

Year ended

December 31, 2019   

  $

-    $

Year ended

December 31, 2018  
- 

16,835     
10,022     
26,857     

574     
6     
580     

18,733 
10,374 
29,107 

283 
(44)
239 

(26,277)    

(28,868)

  $

  $

18     
(26,259)   $

(0.52)   $

- 
(28,868)

(0.86)

Weighted average number of common shares outstanding used in the calculation of (in thousands) 

Basic and diluted loss per common share

50,160     

33,391 

See accompanying notes to consolidated financial statements.

F-3

 
 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
 
 
      
  
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
      
  
 
 
 
      
  
 
 
 
 
 
 APTOSE BIOSCIENCES INC.
Consolidated Statements of Changes in Shareholders’ Equity
(Expressed in thousands of US dollars)

Balance, December 31, 2018
Common shares issued pursuant to the
December 2019 public offering
Common shares issued pursuant to the
June 2019 public offering
Common shares issued pursuant to
2019 share purchase agreement
Common shares issued under the 2018
ATM
Common shares issued pursuant to
2018 share purchase agreement
Common shares issued upon exercise
of stock options
Common shares issued on redemption
of restricted share units
Stock-based compensation
Other comprehensive gain
Net loss
Balance, December 30, 2019
Balance, December 31, 2017
Common shares issued under the 2018
ATM
Common shares issued pursuant to
2017 share purchase agreement
Common shares issued pursuant to
2018 purchase agreement
Shares issued on redemption of
restricted share units
Common shares issued upon exercise
of stock options
Stock-based compensation
Net loss
Balance, December 31, 2018

Common Shares
Shares
(thousands)    
38,162 

  $

18,544 

11,500 

1,971 

77 

5,502 

312 

40 
- 
- 
- 
76,108 
27,502 

4,086 

5,232 

1,078 

150 

  $
  $

114 
- 
- 
38,162 

  $

See accompanying notes to consolidated financial statements.

Amount     
261,072    $

68,588     

19,594     

4,730     

178     

10,000     

1,248     

80     
-     
-     
-     
365,490    $
231,923    $

10,710     

14,995     

2,526     

503     

415     
-     
-     
261,072    $

F-4

Additional      
paid-in
capital     
32,963    $

Accumulated

other      

Deficit      

Total  

comprehensive

loss       
(4,316)   $

(275,638)   $

14,081 

-     

-     

-     

-     

-     

(530)    

(80)    
2,296     
-     
-     
34,649    $
29,365    $

-     

-     

-     

(503)    

(175)    
4,276     
-     
32,963    $

-     

-     

-     

-     

-     

-     

-     

-     

-     

-     

-     

-     

-     
-     
18     
-     
(4,298)   $
(4,316)   $

-     
-     
-     
(26,277)    
(301,915)   $
(246,770)   $

-     

-     

-     

-     

-     

-     

-     

-     

-     
-     
-     
(4,316)   $

-     
-     
(28,868)    
(275,638)   $

68,588 

19,594 

4,730 

178 

10,000 

718 

- 
2,296 
18 
(26,277)
93,926 
10,202 

10,710 

14,995 

2,526 

- 

240 
4,276 
(28,868)
14,081 

 
 
 
 
 
 
 
       
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 APTOSE BIOSCIENCES INC.
Consolidated Statements of Cash Flows
(Expressed in thousands of US dollars)

Cash flows from operating activities:

Net loss for the year
Items not involving cash:

Stock-based compensation
Shares issued to Aspire Capital as commitment fees
Depreciation and amortization
Amortization of right-of-use assets
Interest on lease liabilities
Unrealized foreign exchange gain/(loss)
Accrued interest on investments
Change in operating working capital:

Prepaid expenses
Operating lease payments
Other assets
Accounts payable
Accrued liabilities
Cash used in operating activities

Cash flows from financing activities:

Issuance of common shares pursuant to December 2019 Public Offering, net of broker commission and agent legal fees
Issuance of common shares pursuant to June 2019 Public Offering, net of broker commission and agent legal fees
Issuance of common shares under the 2018 ATM, net of broker commission
Issuance of common shares under 2019 share purchase agreement
Issuance of common shares under 2018 share purchase agreement
Issuance of common shares under 2017 share purchase agreement
Offering costs paid
Issuance of common shares pursuant to exercise of stock options
Cash provided by financing activities

Cash flows from (used in) investing activities:
Maturity (acquisition) of investments, net
Purchase of property and equipment
Cash provided by (used in) investing activities

Effect of exchange rate fluctuations on cash and cash equivalents held
Increase in cash and cash equivalents
Cash and cash equivalents, beginning of year
Cash and cash equivalents, end of year

See accompanying notes to consolidated financial statements.

  $

F-5

Year ended

Year ended

December 31, 2019   

December 31, 2018  

  $

(26,277)   $

(28,868)

2,296     
360     
152     
461     
90     
(23)    
(34)    

(379)    
(471)    
(40)    
645     
1,662     
(21,558)    

68,883     
19,736     
178     
4,370     
10,000     
-     
(437)    
718     
103,448     

(17,268)    
(102)    
(17,370)    

23     
64,543     
15,299     
79,842    $

4,276 
600 
87 
- 
- 
25 
- 

(324)
- 
(27)
726 
298 
(23,207)

- 
- 
10,720 
- 
1,926 
15,000 
(15)
240 
27,871 

341 
(329)
12 

(8)
4,668 
10,631 
15,299 

 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
      
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
      
  
 
 
      
  
 
 
 
 
 
 
 
 
 
      
  
 
 
 
 
 
 
 
 
 1.

Reporting entity:

Aptose  Biosciences  Inc.  (“Aptose”  or  the  “Company”)  is  a  clinical-stage  biotechnology  company  committed  to  discovering  and  developing  personalized  therapies
addressing  unmet  medical  needs  in  oncology.  The  Company’s  executive  office  is  located  in  San  Diego,  California  and  its  corporate  office  is  located  in  Toronto,
Canada.

Aptose has two clinical-stage programs and a third program that is discovery-stage and partnered with another company. CG026806 (“CG-806”), Aptose’s mutation-
agnostic FMS-like tyrosine kinase 3 (FLT3 / Bruton’s tyrosine kinase (BTK) inhibitor, is currently enrolling patients in a Phase 1a/b, multicenter, open label, dose-
escalation study with expansions to assess the safety, tolerability, PK, and preliminary efficacy of CG-806 in patients with chronic lymphocytic leukemia (CLL/SLL)
or non-Hodgkin lymphomas (NHL). Aptose plans to seek allowance from the FDA to move into patient populations that include relapsed or refractory acute myeloid
leukemia (AML) and myelodysplastic syndromes (MDS) in a separate Phase 1 trial. APTO-253, Aptose’s second program, is a small molecule MYC inhibitor and is
currently enrolling patients in a Phase 1b clinical trial for the treatment of patients with R/R blood cancers, including AML and high-risk Myelodysplastic Syndrome.

Since our inception, we have financed our operations and technology acquisitions primarily from equity financing, proceeds from the exercise of warrants and stock
options,  and  interest  income  on  funds  held  for  future  investment.  Our  uses  of  cash  for  operating  activities  have  primarily  consisted  of  salaries  and  wages  for  our
employees, facility and facility-related costs for our offices and laboratories, fees paid in connection with preclinical and clinical studies, drug manufacturing costs,
laboratory supplies and materials, and professional fees.

During the year ended December 31, 2019, the Company completed two confidentially marketed public offering (CMPO) through the issuance of 30,043,750 common
shares for gross proceeds of $95.45 million (approximately $88.18 million net of share issue costs). The Company also raised capital pursuant to two separate share
purchase agreement with Aspire Capital (Aspire) through the issuance of 7,302,433 common shares for gross and net proceeds of $14.4 million.

We do not expect to generate positive cash flow from operations for the foreseeable future due to the early stage of our clinical trials. It is expected that negative cash
flow will continue until such time, if ever, that we receive regulatory approval to commercialize any of our products under development and/or royalty or milestone
revenue from any such products exceeds expenses.

We believe that our cash, cash equivalents and investments on hand at December 31, 2019 will be sufficient to finance our operations for at least 12 months from the
issuance date of these financial statements.  We have based these estimates on assumptions and plans which may change and which could impact the magnitude and/or
timing of operating expenses and our cash runway. These estimates include the rate of enrolment and timing and release of the results of our clinical trials, and our
reliance on our manufacturers.

We expect that we will need to raise additional capital or incur indebtedness to continue to fund our operations in the future. Our ability to raise additional funds could
be affected by adverse market conditions, the status of our product pipeline and various other factors and we may be unable to raise capital when needed, or on terms
favorable to us. If necessary funds are not available, we may have to delay, reduce the scope of, or eliminate some of our development programs, potentially delaying
the time to market for any of our product candidates.

2.

Significant accounting policies

(a) Basis of consolidation:

These consolidated financial statements include the accounts of its subsidiaries. All intercompany transactions, balances, revenue and expenses are eliminated on
consolidation.

(b) Basis of presentation:

These consolidated financial statements have been prepared in conformity with generally accepted accounting principles in the United States, or GAAP and the
rules and regulations of the Securities and Exchange Commission, or SEC, related to annual reports filed on Form 10-K. The functional and presentation currency
of the Company is the US dollar.

F-6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
(c) Significant accounting policies, estimates and judgments:

The  preparation  of  the  consolidated  financial  statements  requires  management  to  make  judgments,  estimates  and  assumptions  that  affect  the  application  of
accounting  policies  and  reported  amounts  of  assets  and  liabilities  at  the  date  of  the  consolidated  financial  statements  and  reported  amounts  of  revenue  and
expenses during the reporting period. Actual outcomes could differ from those estimates. The consolidated financial statements include estimates, which, by their
nature, are uncertain.

The  impacts  of  such  estimates  are  pervasive  throughout  the  consolidated  financial  statements  and  may  require  accounting  adjustments  based  on  future
occurrences.

The estimates and underlying assumptions are reviewed on a regular basis. Revisions to accounting estimates are recognized in the period in which the estimate is
revised and in any future periods affected.

(d) Leases

Effective  January  1,  2019,  the  Company  adopted  Financial Accounting  Standards  Board,  or  FASB,  standard ASU  No.  2016-02,  “Leases  (Topic  842)”.  The
Company’s operating leases of tangible property with terms greater than twelve months are recognized as right of use assets, which represents the lessee’s right to
use, or control the use of, a specified asset for the lease term, and a corresponding lease liability, which represents the lessee’s obligation to make lease payments
under a lease, measured on a discounted basis. The Company adopted the new standard using the alternative transition method, which permits a company to use its
effective date as the date of initial application without restating comparative period financial statements. Landlord inducements in the form of free rent periods are
netted against lease payments to the landlord in measuring right-of-use assets and lease liabilities.

Impact of adoption:

As a result of adopting Topic 842, we recorded as of January 1, 2019, a right of use asset of approximately $1.570 million, and a lease liability of approximately
$1.647 million. Upon adoption, landlord inducements of approximately $78 thousand were de-recognized, and a corresponding adjustment was made to right-of-
use assets.

(e) Cash and cash equivalents:

Cash and cash equivalents are short-term highly liquid investments with original maturities of 90 days or less as at the date of purchase. Cash equivalents are
accounted for on amortized cost basis, which approximates its fair value due to their short-term maturities.

(f)

Investments:

Investments consist of time deposits with original maturities greater than 90 days are classified by management as securities available-for-sale. These available-for-
sale securities are recorded at estimated fair values. Unrealized gains and losses on these investments are recorded in accumulated other comprehensive income
(AOCI) in shareholder’s equity. Realized gains and losses and declines in value that are judged to be other than temporary are included in interest income.

(g) Concentration of risk:

The Company is subject to credit risk from the Company’s cash and cash equivalents and investments. The carrying amount of the financial assets represents the
maximum credit exposure. The Company manages credit risk associated with its cash and cash equivalents and investments by maintaining minimum standards of
R1-low or A-low investments and the Company invests only in highly rated Canadian corporations which are capable of prompt liquidation.

(h) Property and equipment:

Property  and  equipment  is  measured  at  cost  less  accumulated  depreciation  and  accumulated  impairment  losses.  Cost  includes  expenditures  that  are  directly
attributable to the acquisition of the asset. The Company records depreciation at rates that charge operations with the cost of the assets over their estimated useful
lives on a straight-line basis as follows:

F-7

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Office furniture (years)
Laboratory equipment (years)
Computer hardware (years)
Computer software (years)
Leasehold improvements

5 
5 
3 
3 
Life of lease 

The residual value, useful life and methods of depreciation of the assets are reviewed at each reporting period and adjusted prospectively if appropriate.

(i) Research and development:

Research and development (R&D) costs are expensed as incurred. R&D costs consist primarily of salaries and benefits, stock-based compensation, manufacturing,
contract services, clinical trials, intangibles, and research related overhead. Non-refundable advance payments for goods and services that will be used in future
research are recorded in prepaid and other assets and are expensed when the services are performed.

(j) Fair value:

The Company measures its financial assets and liabilities at fair value. The carrying amounts for the Company’s financial instruments, including cash and cash
equivalents, accounts payable and accrued liabilities approximate their fair value due to their short maturities. Fair value is the price that would be received to sell
an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.

(k) Stock-based compensation:

The Company has a stock-based compensation plan (the “Plan”) available to officers, directors, employees and consultants with grants under the Plan approved by
the Company’s Board of Directors. Under the Plan, the exercise price of each option equals the closing trading price of the Company’s stock on the day prior to
the grant if the grant is made during the trading day or the closing trading price on the day of grant if the grant is issued after markets have closed. Vesting is
provided for at the discretion of the Board of Directors and the expiration of options is to be no greater than 10 years from the date of grant.

The Company uses the fair value based method of accounting for employee awards granted under the Plan. The Company calculates the fair value of each stock
option  grant  using  the  Black-Scholes  option  pricing  model  at  the  grant  date.  The  stock-based  compensation  cost  of  the  options  is  recognized  as  stock-based
compensation expense over the relevant vesting period of the stock options using an estimate of the number of options that will eventually vest.

Stock options awarded to non-employees are accounted for at the fair value of the goods received or the services rendered. The fair value is measured at the grant
date. In June 2018, FASB issued accounting standards update No 2018-07, Improvements to Nonemployee Share-Based Payment Accounting. The amendment
establishes that nonemployee share-based payment awards within the scope of Topic 718 be measured at grant-date fair value of the equity instruments issued.
The amendments are effective for fiscal years beginning after December 15, 2018. Early adoption is permitted and the Company elected to early adopt this policy.
The early adoption did not result in any changes in retained earnings or other components of equity as the accounting.

The Company has a stock incentive plan pursuant to which the Board may grant stock-based awards comprised of restricted stock units or dividend equivalents to
employees, officers, consultants, independent contractors, advisors and non-employee directors of the Company. Compensation cost for restricted share units is
measured at fair value at the date of grant, which is the market price of the underlying security, and is expensed over the award’s vesting period on a straight-line
basis using an estimate of the number of awards that will eventually vest.

(l) Segment reporting:

Operating  segments  are  identified  as  components  of  an  enterprise  about  which  separate  discrete  financial  information  is  available  for  evaluation  by  the  chief
operating decision-maker, or CODM. The Company’s Chief Executive Officer serves as its CODM. The Company views its operations and manages its business
as one segment, which is the discovery and development of personalized therapies addressing unmet medical needs in oncology. The Company operates primarily
in the US.

F-8

 
 
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
(m) Loss per share:

Basic loss per share is computed by dividing the net loss available to common shareholders by the weighted average number of shares outstanding during the year.
Diluted loss per share is computed similarly to basic loss per share except that the weighted average share outstanding is increased to include additional shares for
the  assumed  exercise  of  stock  options  and  warrants,  if  dilutive.  The  number  of  additional  shares  is  calculated  by  assuming  that  outstanding  stock  options  and
warrants were exercised and that the proceeds from such exercises were used to acquire common stock at the average market price during the year. The inclusion
of the Company’s stock options and warrants in the computation of diluted loss per share has an anti-dilutive effect on the loss per share and, therefore, they have
been excluded from the calculation of diluted loss per share.

(n)

Income taxes:

The  Company  accounts  for  income  taxes  under  the  asset  and  liability  method.  Under  this  method,  deferred  tax  assets  and  liabilities  are  recognized  for  the
estimated future tax consequences attributable to differences between financial statement carrying amounts of existing assets and liabilities and their respective tax
bases. Deferred tax assets and liabilities are measured using enacted rates in effect for the year in which these temporary differences are expected to be recovered
or settled. Valuation allowances are provided if, based on the weight of available evidence, it is more likely than not that some or all of the deferred tax assets
will not be realized.

The Company provides reserves for potential payments of tax to various tax authorities related to uncertain tax positions and other issues. Reserves are based on a
determination of whether and how much of a tax benefit taken by the Company in its tax filing is more likely than not to be realized following resolution of any
potential contingencies present related to the tax benefit. Potential interest and penalties associated with such uncertain tax positions are recorded as components
of income tax expense. As at December 31, 2019 and December 31, 2018, the Company has not recorded any reserves for potential payments as the Company
has a history of losses and does not have any revenue from operations.

3.

Cash and cash equivalents:

Cash and cash equivalents consists of cash of $1.640 million (December 31, 2018 - $621 thousand) and deposits in high interest savings accounts and other term
deposits with maturities less than 90 days totaling of $78.202 million (December 31, 2018 - $14.678 million).

4.

Property and equipment:

December 31, 2019

Laboratory equipment
Computer hardware
Computer software
Office furniture
Leasehold improvements

December 31, 2018

Laboratory equipment
Computer hardware
Computer software
Office furniture
Leasehold improvements

Cost   

185    $
122     
222     
116     
177     
822    $

Cost   

176    $
80     
222     
82     
160     
720    $

Accumulated
depreciation   

  Net book value  

160    $
60     
128     
51     
89     
488    $

25 
62 
94 
65 
88 
334 

Accumulated
depreciation      Net book value  

129    $
40     
80     
28     
59     
336    $

47 
40 
142 
54 
101 
384 

  $

  $

  $

  $

F-9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
   
   
   
   
   
 
 
 
 
 
 
 
 
    
 
    
 
   
   
   
   
   
 
 
 
5.

Right of-use assets, operating leases:

Right-of-use assets, January 1, 2019
Additions to right-of-use assets
Right-of-use assets, December 31, 2019
Accumulated amortization
Right-of use assets, NBV

6.

Investments:

Investments consisted of the following as of December 31, 2019 and December 31, 2018:

Guaranteed investment certificate(s)
Commercial notes
Canadian promissory note

Year ended 

Year  ended

December 31, 2019   

December 31, 2018  

  $

1,570     
267     
1,837     
(461)    
1,376     

- 
- 
- 
- 
- 

December 31, 2019
Unrealized
gain/(loss)   

Cost   

12,008     
3,736     
1,996     
17,740     

18     
-     
-     
18     

December 31, 2018
Unrealized
gain (loss)   

Cost   

Market

value  

12,026 
3,736 
1,996 
17,758 

Market

value  

Guaranteed investment certificate(s)

440     

-     

440 

7.

Fair value measurements and financial instruments:

The fair value hierarchy establishes three levels to classify the inputs to valuation techniques used to measure fair value.

Level 1 - inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities;

Level 2 - inputs are quoted prices in markets that are not active, quoted prices for similar assets or liabilities in active markets, inputs other than quoted prices that are
observable for the asset or liability, or inputs that are derived principally from or corroborated by observable market data or other means; and

Level 3 - inputs are unobservable (supported by little or no market activity).

The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs.

F-10

 
 
 
 
 
 
 
 
 
    
 
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
   
   
   
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
      
      
  
   
 
 
 
 
 
 
 
 
The following table presents the Company’s assets that are measured at fair value on a recurring basis for the periods presented:

Assets

High interest savings account
Commercial notes
Canadian provincial promissory notes
Guaranteed investment certificates, issued by a Canadian financial

institution

Assets

High interest savings account
United States treasury bills
Canadian provincial promissory notes
Guaranteed investment certificates, Royal Bank of Canada

December 31,

2019   

Level 1   

Level 2   

Level 3  

2,989    $
6,235     
5,493     

81,243     
95,960    $

-    $
-     
-     

-     
-    $

2,989     
6,235     
5,493     

81,243     
95,960    $

- 
- 
- 

- 
- 

December 31,

2018   

Level 1   

Level 2   

Level 3  

496    $
3,989     
5,991     
4,642     
15,118    $

-    $
-     
-     
-     
-    $

496    $
3,989     
5,991     
4,642     
15,118    $

- 
- 
- 
- 
- 

  $

  $

  $

  $

8.

Accrued liabilities:

Accrued liabilities as of December 31, 2019 and December 31, 2018 consisted of the following:

Accrued personnel related costs
Accrued research and development expenses
Other accrued expenses

9.

Lease liability

December 31,

2019   

December 31,
2018  

  $

  $

1,739    $
1,062     
257     
3,058    $

955 
257 
262 
1,474 

Aptose leases office space and lab space in San Diego, California. The lease for the office space expires on March 31, 2023 and can be extended for an additional 5
year  period.  The  lease  for  our  lab  space  expired  on  February  29,  2019,  and  on  February  18,  2019  was  renewed  until  February  28,  2022.  We  lease  office  space  in
Toronto, Ontario, Canada and the lease for this location expires on June 30, 2023 with an option to renew for another 5-year period. The Company has not included any
extension periods in calculating its right-to-use assets and lease liabilities. The Company also enters into leases for small office equipment.

F-11

 
 
 
 
 
 
 
 
   
      
      
      
  
 
   
      
      
      
  
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
    
 
   
 
   
   
   
 
 
   
      
      
      
  
   
   
   
 
 
 
 
 
 
 
 
 
 
 
    
 
   
   
   
 
 
 
 
 
Minimum payments, undiscounted, under our operating leases are as follows:

Years ending December 31,
2020
2021
2022
2023
Thereafter

  $

  $

534 
545 
463 
119 
- 
1,661 

To  calculate  the  lease  liability,  the  lease  payments  in  the  table  above  were  discounted  over  the  remaining  term  of  the  leases  using  the  Company’s  incremental
borrowing rate as at January 1, 2019 for existing leases at the time of adopting the Topic 842, and for new leases after the date adoption, as at the date of the execution
date of the new lease. The following table presents the weighted average remaining term of the leases and the weighted average discount rate:

Weighted-average remaining term – operating leases (years)
Weighted-average discount rate – operating leases

Lease liability, current portion
Lease liability, long term portion
Lease liability, total

Right-of-use assets obtained in exchange for new operating lease liabilities are as follows:

Right-of-use assets recorded upon adoption of Topic 842, January 1, 2019
Right-of-use assets obtained in exchange for new operating lease liabilities in the period

Operating lease costs and operating cash flows from our operating leases are as follows:

Operating lease cost
Operating cash flows from operating leases

Year ended 

December 31, 2019  

3.3 
5.43%

521 
1,011 
1,532 

Year ended 
December 31, 2019  
1,570 
267 

  $
  $

Year ended 
December 31, 2019  
551 
471 

  $
  $

Comparable figures are not presented as the Company adopted the new standard using the alternative transition method, which permits a company to use its effective
date as the date of initial application without restating comparative period financial statements.

F-12

 
 
 
 
   
   
   
   
 
 
 
 
 
   
   
 
   
  
   
   
   
 
 
 
 
 
 
 
 
 
 
10.

Share capital:

The Company has authorized share capital of an unlimited number of common voting shares.

(a) Equity issuances:

(i) December 2019 Confidentially Marketed Public Offering (CMPO)

On December 19, 2019, the Company completed a confidentially marketed public offering through the issuance of 18,543,750 common shares at a price of
$4.00 per share for gross proceeds of $74.175 million (approximately $68.588 million net of share issue costs). Costs associated with the proceeds consisted
of a 7% cash commissions and share issue costs, which consisted of agent commission, legal and professional fees and listing fees.

(ii) June 2019 Confidentially Marketed Public Offering (CMPO)

On June 3, 2019, the Company completed a confidentially marketed public offering through the issuance of 11,500,000 common shares at a price of $1.85
per share for gross proceeds of $21.275 (approximately $19.594 million net of share issue costs). Costs associated with the proceeds consisted of a 7% cash
commissions and share issue costs, which consisted of agent commission, legal and professional fees and listing fees.

(iii) 2019 Share Purchase agreement

On  May  7,  2019,  the  Company  entered  into  the  2019 Aspire  Purchase Agreement,  which  provided  that,  upon  the  terms  and  subject  to  the  conditions  and
limitations set forth therein, Aspire Capital was committed to purchase up to an aggregate of $20 million of Common Shares over approximately 30 months.
Pursuant  to  the  terms  of  this  agreement,  on  May  13,  2019,  the  Company  issued  171,428  Common  Shares  (“Commitment  Shares”)  to Aspire  Capital  in
consideration for entering into the 2019 Aspire Purchase Agreement for a total cost of $360 thousand. During the period from May 7, 2019 up to December
16, 2019, the date the 2019 Aspire Purchase Agreement was terminated, the Company issued 1,800,000 common shares under the agreement at an average
price of $2.43 per share for gross and net proceeds of $4.37 million.

(iv) 2018 Share Purchase agreement

On May 30, 2018, the Company entered into the 2018 Aspire Purchase Agreement, which provided that, upon the terms and subject to the conditions and
limitations set forth therein, Aspire Capital was committed to purchase up to an aggregate of $20 million of Common Shares over approximately 30 months.
Pursuant  to  the  terms  of  this  agreement,  on  June  8,  2018,  the  Company  issued  170,261  Common  Shares  (“Commitment  Shares”)  to Aspire  Capital  in
consideration for entering into the 2018 Aspire Purchase Agreement for a total cost of $600 thousand. During the period from January 1, 2019 up to May 24,
2019, the date the 2018 Aspire Purchase Agreement was terminated, the Company issued 5,502,433 common shares under the agreement at an average price
of $1.82 per share for gross and net proceeds of $10 million. On a cumulative basis up to May 24, 2019, the Company raised a total of approximately $11.9
million gross and net proceeds under the 2018 Aspire Purchase Agreement. As of May 24, 2019, the Company has issued 6,409,980, the maximum number
of shares issuable under this facility without shareholder approval.

(v) 2017 Share purchase agreement

On October 27, 2017, the Company entered into the 2017 Aspire Purchase Agreement, which provided that, upon the terms and subject to the conditions and
limitations set forth therein, Aspire Capital was committed to purchase up to an aggregate of $15,500,000 of Common Shares over approximately 30 months.
During the year ended December 31, 2017, and pursuant to the terms of the Aspire Purchase Agreement, Aspire Capital purchased 357,143 Common Shares
for gross proceeds of $500 thousand ($324 thousand net of cash share issue costs) and the Company also issued 321,429 Common Shares to Aspire Capital in
consideration for entering into the Aspire Purchase Agreement. During the year ended December 31, 2018, the Company issued 5,231,953 common shares
under the Aspire Purchase Agreement at an average price of $2.87 per share for gross and net proceeds of approximately $15 million. On a cumulative basis
to  December  31,  2018,  the  Company  has  raised  a  total  of  $15.5  million  gross  proceeds  under  the Aspire  Purchase Agreement,  the  total  amount  that  was
available under the Agreement.

F-13

 
 
 
 
 
 
 
 
 
 
 
 
 
 
(vi) 2019 At-The-Market (“ATM”) Facility

On May 24, 2019, the Company entered into an “At-The-Market” Facility (“ATM”) equity distribution agreement with Piper Jaffray and Canaccord Genuity
acting as co-agents. Under the terms of this facility, the Company may, from time to time, sell shares of our common stock having an aggregate offering
value of up to $40 million through Piper Jaffray and Canaccord Genuity on the Nasdaq Capital Market. During the period from May 24, 2019 to December
16, 2019, the date the “ATM” Facility was terminated, the Company did not issue any shares under this ATM equity.

(vii) 2018 At-The-Market (“ATM”) Facility

On March 27, 2018, the Company entered into an “At-The-Market” Facility (“ATM”) equity distribution agreement with Cantor Fitzgerald acting as sole
agent. Under the terms of this facility, the Company may, from time to time, sell shares of our common stock having an aggregate offering value of up to $30
million through Cantor Fitzgerald on the Nasdaq Capital Market. During the year ended December 31, 2018, the Company issued 4,085,615 shares under this
ATM equity facility at an average price of $2.71 for gross proceeds of $11 million ($10.7 million net of share issue costs). During the period from January 1,
2019  to  May  24,  2019,  the  date  the Agreement  was  terminated,  the  Company  issued  77,349  shares  under  this ATM  equity  facility  at  an  average  price  of
$2.37 for gross proceeds of $183 thousand ($178 thousand net of share issue costs). Costs associated with the proceeds consisted of a 3% cash commission.
As of May 24, 2019, the Company has raised a total of $11.2 million gross proceeds ($10.9 million net of share issue costs) under the ATM Facility.

(b) Loss per share:

Loss per common share is calculated using the weighted average number of common shares outstanding and is presented in the table below:

(in thousands)

Net loss
Weighted-average common shares – basic and diluted
Net loss per share – basic and diluted

Year ended
Dec 31, 2019   

Year ended
Dec 31, 2018  

  $

  $

(26,277)   $
50,160     
(0.52)   $

(28,868)
33,391 
(0.86)

The  effect  of  any  potential  exercise  of  the  Company’s  stock  options  outstanding  during  the  year  has  been  excluded  from  the  calculation  of  diluted  loss  per
common share as it would be anti-dilutive.

11.

Stock-based compensation:

(a) Stock options

Under the Company’s stock option plan, options, rights and other entitlements may be granted to directors, officers, employees and consultants of the Company to
purchase  up  to  a  maximum  of  17.5%  of  the  total  number  of  outstanding  common  shares,  estimated  at  13.3  million  options,  rights  and  other  entitlements  as  at
December 31, 2019. Options are granted at the fair market value of the common shares on the closing trading price of the Company’s stock on the day prior to the
grant if the grant is made during the trading day or the closing trading price on the day of grant if the grant is issued after markets have closed. Options vest at various
rates (immediate to four years) and have a term of 10 years.

F-14

 
 
 
 
 
 
 
 
 
 
 
 
    
 
   
   
 
 
 
 
 
Stock option transactions for the years ended December 31, 2018 and 2019 are summarized as follows:

Option numbers are in (000’s)

Outstanding, December 31, 2017
Granted
Exercised
Expired
Forfeited
Outstanding, December 31, 2018
Granted
Exercised
Expired
Forfeited
Outstanding, December 31, 2019
Exercisable, December 31, 2019
Vested and expected to vest, December 31, 2109

Year ended
December 31, 2019
Weighted average 
exercise price

Weighted
average
remaining
contractual 
life(years)

Aggregate
Intrinsic
Value

3.46     
2.98     
2.04     
2.34     
4.97     
3.11     
2.00     
2.32     
4.61     
2.36     
2.84     
3.44     
2.89     

7.6     
6.5     
7.5     

16,866,623 
6,853,978 
15,364,726 

Options   

2,344    $
2,320     
(114)    
(51)    
(10)    
4,489    $
2,160     
(312)    
(67)    
(329)    
5,941     
3,057     
5,508     

Aggregate intrinsic value represents the excess of the value of the closing stock price on the previous trading day of the respective balance sheet dates over the exercise
price of the stock options. Total intrinsic value of options exercised was $259 thousand for 2019 (2018 – $255 thousand).

As of December 31, 2019, there was $1.38 million of total unrecognized compensation cost related to non-vested stock options, which is expected to be recognized
over an estimated weighted-average period of 1.77 years.

The following table presents the weighted average assumptions that were used in the Black-Scholes option pricing model to determine the fair value of stock options
granted during the year, and the resultant weighted average fair values:

Risk-free interest rate
Expected dividend yield
Expected volatility
Expected life of options (years)
Grant date fair value

Year ended 

Year ended 

December 31, 2019   

2.18%   
- 
83.9%   
5 
1.34 

  $

December 31, 2018  
2.43%
- 
93.3%
5 
2.22 

  $

The Company uses historical data to estimate the expected dividend yield and expected volatility of its common shares in determining the fair value of stock options.
The expected life of the options represents the estimated length of time the options are expected to remain outstanding.

Stock options granted by the Company during the year ended December 31, 2019, vest 50% after one year and 16.67% on each of the next three anniversaries, except
for 160,000 options which vest 50% after one year and 25% on each of the next two anniversaries and 335,000 options which vest 100% after one year.

Stock options granted by the Company during the year ended December 30, 2018 vest 50% after one year and 16.67% on each of the next three anniversaries, except
for 166,000 options which vest 50% after one year and 25% on each of the next two anniversaries and 850,000 options which vested immediately on the grant date.

F-15

 
 
 
  
  
  
 
 
 
 
   
   
 
   
      
  
   
      
  
   
      
  
   
      
  
   
      
  
   
      
  
   
      
  
   
      
  
   
      
  
   
      
  
   
   
   
 
 
 
 
 
 
   
   
   
   
   
   
 
 
 
 
(b) Restricted share units

The Company has a stock incentive plan (SIP) pursuant to which the Board may grant stock-based awards comprised of restricted stock units or dividend equivalents
to employees, officers, consultants, independent contractors, advisors and non-employee directors of the Company. Each restricted unit is automatically redeemed for
one common share of the Company upon vesting. The following table presents the activity under the SIP plan for the year ended December 31, 2019 and 2018 the
units outstanding.

Outstanding, December 31. 2018
Granted
Redeemed
Outstanding, December 31, 2019

Year ended, 
December 31, 2019

Year ended, 
December 31, 2018

Number

(in thousands)    

Weighted
average grant
date fair value   

Number

(in thousands)    

-    $
80     
(40)    
40    $

-     
2.00     
2.00     
2.00     

-    $
150     
(150)    
-    $

Weighted
average grant
date fair value
- 
3.35 
3.35 
- 

On  June  3,  2019,  the  Company  granted  80,000  restricted  share  units  (RSUs),  40,000  restricted  share  units  of  which  have  a  vesting  term  of  three  months  and  the
balance having a vesting term of one year. On September 3, 2019, 50% of these restricted share units were vested and were redeemed for 40,000 common shares.

On July 13, 2018, the Company granted 150,000 restricted share units with a vesting term of three months.

The grant date fair value of the June 3, 2019 RSUs and July 13, 2018 were respectively determined as the closing value of the common shares of the Company on the
Nasdaq Stock Market on the date prior to the date of grant.

(c) Share-based payment expense

The Company recorded share-based payment expense related to stock options and RSUs as follows:

Research and development
General and administrative
Total

12.

Related party transactions:

Year ended

December 31, 2019   

  $

  $

474    $
1,822     
2,296    $

Year ended
December 31, 2018
1,026 
3,250 
4,276 

The  Company  uses  Moores  Cancer  Center  at  the  University  of  California  San  Diego  (UCSD)  to  provide  pharmacology  lab  services  to  the  Company.  Dr.  Stephen
Howell is the Acting Chief Medical Officer of Aptose and is also a Professor of Medicine at UCSD and oversees the laboratory work. The work is completed under the
terms of research services agreements executed in March 2015 and has been extended annually. In March 2019, the Board approved an extension of this agreement for
twelve months for services up to $300,000. These transactions are in the normal course of business and are measured at the amount of consideration established and
agreed to by the related parties.

During  the  year  ended  December  31,  2019,  the  Company  recorded  $223  thousand  (2018  –  $279  thousand)  in  research  and  development  expenses  related  to  the
agreement.

F-16

 
 
 
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
13.

Collaborative agreements:

The Company enters into research, development and license agreements in the ordinary course of business where the Company receives research services and rights to
proprietary  technologies.  Milestone  and  royalty  payments  that  may  become  due  under  various  agreements  are  dependent  on,  among  other  factors,  clinical  trials,
regulatory approvals and ultimately the successful development of a new drug, the outcome and timing of which is uncertain.

Under the Company’s license agreement with CrystalGenomics for rights to CG-806, in all territories outside of the Republic of Korea and China, the Company has
obligations for development milestones of $16 million related to the initiation of Phase 2 and pivotal clinical trials, and regulatory milestones totaling $44 million. The
Company also has an obligation to pay royalty payments on sales of commercialized product. The timing of any milestone or royalty payments that may become due is
not yet determinable.

On June 13, 2018, the Company entered into a license agreement with CrystalGenomics to gain an exclusive license to CG-806 in China. The Company has potential
future obligations of development milestones of $6 million related to approval of an Investigational New Drug (“IND”) and to the initiation of Phase 2 and pivotal
clinical  trials,  and  regulatory  milestones  totaling  $20  million.  The  Company  also  has  an  obligation  to  pay  sales  milestones  and  royalty  payments  on  sales  of
commercialized product. The timing or likelihood of any milestone or royalty payments that may become due is not yet determinable.

On March 7, 2018, we entered into an exclusive global license agreement with Ohm Oncology (OHM), for the development, manufacture and commercialization of
APL-581,  as  well  as  related  molecules  from  our  dual  bromodomain  and  extra-terminal  domain  motif  (BET)  protein  and  kinase  inhibitor  program.  Under  the
agreement, we will retain reacquisition rights to certain molecules, while OHM/LALS will have the rights to develop and sublicense all other molecules. We have
received two nominal upfront cash payments and are eligible to receive up to $125 million of additional payments based on the achievement of certain development,
regulatory and sales milestones, as well as significant royalties on future sales generated from the program, if any.

14.

Income taxes:

(a) Recent tax legislation

In December 2017 the U.S. government enacted comprehensive tax legislation, the Tax Cuts and Jobs Act (the "Tax Act"), which significantly revises the U.S. tax
code, generally effective January 1, 2018, by lowering the U.S. federal corporate income tax rate from 35% to 21%, implementing a territorial tax system and setting
limitations on the deductibility of certain costs (e.g. Interest expenses) among other things. As a Canadian entity, we generally would be classified as a foreign entity
(and, therefore, a non-U.S. tax resident) under general rules of U.S. federal income taxation. However, we have a branch and U.S. subsidiary subject to U.S. federal
income taxation. The Tax Act has impacted our consolidated results of operations during 2017 and 2018, and is expected to continue to impact our consolidated results
of operations in future periods. The ultimate impact of the Tax Act on our effective tax rate in future periods will depend on interpretations and regulatory changes
from the Internal Revenue.

(b)

Income taxes

For the years ended December 31, 2018 and 2019, the total comprehensive loss is as follows:

Loss attributed to US foreign operations
Loss attributed to Canadian operations
Income (loss) before income taxes

 December 31, 2019   

 December 31, 2018  

  $

(20,470)   $
(5,807)    
(26,277)    

(21,807)
(7,061)
(28,868)

F-17

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
   
   
   
 
 
(c) Tax rate reconciliation

Major items causing the Company’s income tax rate to differ from the statutory rate of approximately 26.5% (December 31, 2018 – 26.5%) are as follows:

Net loss
Statutory Canadian corporate tax rate

Computed expected tax recovery
Non-deductible permanent differences
Change in valuation allowance
Foreign tax rate differential
Foreign exchange differences
Prior year true-up adjustments
Other

(d) Significant components of deferred taxes

Year ended

Year ended

December 31, 2019   

December 31, 2018  

  $

  $

  $

(26,277)   $
26.5%   

(6,963)   $
(1,305)    
12,146 

(286)    
- 
(3,563)    
(29)    
  $
- 

(28,868)
26.5%

(7,650)
1,422 
4,528 
(325)
2,183 
- 
(158)
- 

The tax effects of temporary differences that give rise to significant portions of the unrecognized deferred tax assets are presented below:

Net operating losses carried forward
Research and development expenditures
Property, equipment, and other intangible assets
Research and development tax credits
Financing costs
Right-of-use assets
Total deferred tax assets
Valuation allowance
Net deferred tax asset

  $

  $

 December 31, 2019   

26,786    $
5,031     
4,191     
3,685     
2,010     
41     
41,744     
(41,744)    
-    $

 December 31, 2018  
19,567 
5,024 
4,161 
394 
452 
- 
29,598 
(29,598)
- 

The valuation allowance at December 31, 2019 was primarily related to net operating loss carryforwards that, in the judgment of management, are not more-likely
than-not to be realized. In assessing the realizability of deferred tax assets, management considers whether it is more-likely than-not that all or some portion of the
deferred assets will  not  be  realized.  This  ultimate  realization  of  deferred  tax  assets  is  dependent  upon  the  generation  of  future  taxable  income  during  the  period  in
which those deductible temporary difference become deductible. Based on the history of losses and projections for future taxable income, management believes that it
is not more-likely than-not that the Company will realize the benefits of these deductible temporary differences (e.g. deferred tax assets).

The  Company  has  undeducted  research  and  development  expenditures,  totaling  $18.958  million  that  can  be  carried  forward  indefinitely.  The  Company  also  has
Canadian non-refundable federal and provincial investment tax credits of approximately $4.113 million which are available to reduce future federal taxes payable and
begin to expire in 2020, as well as non-refundable US research and development tax credits of approximately $0.557 million which are available to reduce future US
taxes payable and begin to expire in 2038.

F-18

 
 
 
 
 
   
 
   
  
   
  
   
   
   
   
   
   
   
   
 
 
 
 
 
 
   
   
   
   
   
   
   
 
 
 
In  addition,  the  Company  has  Canadian  non-capital  loss  carryforwards  of  $97.127  million.  To  the  extent  that  the  non-capital  loss  carryforwards  are  not  used,  they
begin to expire in 2026. The Company also has US non-capital loss carryforward of $0.586 million, To the extent that the non-capital loss carryforwards are not used,
they begin to expire in 2034.

The Company files income tax returns with Canada and its provinces and territories. Generally we are subject to routine examinations by the Canada Revenue Agency
("CRA"). Income tax returns filed with various provincial jurisdictions are generally open to examination for periods of four to five years subsequent to the filing of the
respective return.

The Company also files income tax returns for our U.S. operations and subsidiary with the U.S. federal and state tax jurisdictions. Generally, we are subject to routine
examination  by  taxing  authorities  in  the  U.S.  jurisdictions.  There  are  presently  no  examination  of  our  U.S.  federal  and  U.S.  state  returns.  We  believe  that  our  tax
positions comply with the applicable tax law.

15.

Selected quarterly financial data (unaudited):

Selected financial data (unaudited) for the periods presented was as follows:

Revenue
Net loss
Basic and diluted loss per common share

Revenue
Net loss
Basic and diluted loss per common share

16.

Subsequent events

  $

  $

March 31,

June 30, 

September 30,

2019  

-    $
(5,506)    
(0.14)    

2019  

-    $
(6,218)    
(0.13)    

2019   

-    $
(6,844)    
(0.12)    

March 31, 

2018   

-    $
(6,814)    
(0.23)    

June 30, 

2018   

-    $
(10,262)    
(0.30)    

September 30,

2018   

-    $
(5,531)    
(0.16)    

December 31,
2019  
- 
(7,709)
(0.13)

December 31,
2018  
- 
(6,261)
(0.17)

(a) Subsequent to the year end, the Company issued 5,808,834 stock options with an average exercise price of $6.82. The stock options vest 50% after one year and

16.67% on each of the next three anniversaries, except for 861,834 options which vest 50% after one year and 25% on each of the next two anniversaries.

(b) Subsequent to the year end, the Company issued 161,775 common shares upon the exercise of stock options, with an average exercise price of $2.68.

F-19

 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
Description of Securities Registered
Under Section 12 of the Exchange Act of 1934

The following description of our common shares, no par value per share, is a summary and does not purport to be complete. It is subject to and qualified in its entirety
by reference to our Articles of Incorporation, Arrangement and Amendment last amended on June 12, 2015 (the “Articles”) and our Amended By-Law No. 2 (the “Bylaws”),
each of which is incorporated by reference as an exhibit to the Annual Report on Form 10-K of which this Exhibit is a part. We encourage you to read our Articles and our
Bylaws for additional information.

Exhibit 4.1

Authorized Capital

Our authorized share capital consists of an unlimited number of common shares.

Voting Rights

Holders of common shares will be entitled to receive notice of and to attend all meetings of the shareholders. Holders of common shares are entitled to one vote per
share on all matters voted on by the shareholders, including the election of directors. Our common shares do not have cumulative voting rights. Each director is elected by a
plurality of the votes cast. However, in an uncontested election, if a nominee for director receives a greater number of votes “withheld” from his or her election than votes “for”
such election, the nominee will be considered not to have received the support of the shareholders, even though duly elected as a matter of corporate law. Such a nominee will
be  expected  to  provide  forthwith  his  or  her  resignation  to  the  board,  effective  on  acceptance  by  the  board.  Unless  special  circumstances  apply,  the  board  will  accept  the
resignation.  Within  90  days  following  the  applicable  meeting  of  the  shareholders,  the  board  will  determine  whether  to  accept  or  reject  the  resignation  offer  that  has  been
submitted. Following the board’s decision on the resignation, the board will promptly disclose, via press release, its decision (including the reasons for rejecting the resignation
offer, if applicable).

Except for the election of directors, or as otherwise required by the Articles, the Bylaws or applicable laws and regulations, all questions properly before a meeting of

shareholders will be decided by a majority of the votes cast on the question.

Dividend Rights and Dividend Policy

The holders of common shares are entitled, at the discretion of our board of directors, to receive out of any or all of our assets properly available for the payment of
dividends, any dividend declared by the board of directors and payable by us on our common shares. Any dividend unclaimed after a period of six years from the date on which
the same has been declared to be payable shall be forfeited and shall revert to us. We and our subsidiaries are, and may become, parties to agreements pursuant to which we
borrow  money,  and  certain  covenants  in  these  agreements  may  limit  our  ability  to  pay  dividends  or  other  distributions  with  respect  to  the  common  shares  or  to  repurchase
common shares.

We have not paid any dividends since our incorporation. At the discretion of our board of directors, we will consider paying dividends in the future as our operational
circumstances may permit, having regard to, among other things, our earnings, cash flow and financial requirements. It is the current policy of our board of directors to retain
all earnings to finance our business plan.

Liquidation Rights

The holders of common shares will participate on a pro rata basis in any distribution of our remaining property upon our liquidation, dissolution or winding-up or any

other return of capital or distribution of our assets among our shareholders for the purpose of winding up our affairs.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other Rights and Preferences

Our common shares have no sinking fund or redemption provisions or preemptive, conversion or exchange rights.

Fully Paid Shares

Our outstanding common shares are, and any newly issued common shares will be, fully paid and non-assessable.

2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 10.7

APTOSE BIOSCIENCES INC.
EXECUTIVE EMPLOYMENT AGREEMENT

This Executive Employment Agreement (the ''Agreement'"), made between Aptose Biosciences Inc. (the "Company") and Rafael Bejar, M.D., Ph.D. ("Executive," and
together with the Company, the "Parties"), is entered into as of December 4, 2019. In the event Executive's employment with the Company does not commence on or prior to
January 1, 2020, this Agreement shall be null and void.

WHEREAS,  the  Company  desires  for  Executive  to  commence  employment  with  the  Company  on  January  1,  2019,  and  wishes  to  provide  Executive  with  certain

compensation and benefits in return for such employment; and

WHEREAS, Executive wishes to be employed by the Company and to provide personal services to the Company in return for certain compensation and benefits;

NOW,  THEREFORE, in  consideration  of  the  mutual  promises  and  covenants  contained  herein  and  for  other  good  and  valuable  consideration,  the  receipt  and

sufficiency of which is hereby acknowledged, the Parties hereto agree as follows:

1.

Employment by the Company.

1.1               Position. Executive shall serve as the Company's Chief Medical Officer. While employed by the Company, Executive will devote Executive's
best efforts and substantially all of Executive's business time and attention to the business of the Company, except for approved vacation periods and reasonable periods of
illness or other incapacities permitted by the Company's general employment policies.

1.2               Duties and Location. Executive shall perform such duties as are required by the Company's Chief Executive Officer, to whom Executive will
report. In the event of the Chief Executive Officer's incapacity or unavailability, Executive will report to the Board of Directors of the Company (the "Board").  Executive's
primary office location shall be the Company's executive office located at 12270 High Bluff Drive, Suite 120, San Diego, California 92130. The Company reserves the right to
reasonably require Executive to perform Executive's duties at places other than Executive's primary office location from time to time, and to require reasonable business travel.
The Company may modify Executive's job title and duties as it deems necessary and appropriate in light of the Company's needs and interests from time to time.

1.3               Policies and Procedures. The employment relationship between the Parties shall be governed by the general employment policies and practices
of the Company, except that when the terms of this Agreement differ from or are in conflict with the Company's general employment policies or practices, this Agreement shall
control.

2.

Compensation.

2.1                Base  Salary. For  services  to  be  rendered  hereunder,  Executive  shall  receive  a  base  salary  at  the  rate  of  U.S.  $400,000  per  year  (the  "Base
Salary"). The Base Salary will be payable in accordance with the Company's regular payroll schedule. Executive's Base Salary shall be subject to review annually by and at the
sole discretion of the Board or its designee.

1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
2.2               Bonus. Commencing in 2020, Executive will be eligible for an annual discretionary bonus of up to forty percent (40%) of Executive's then
current  Base  Salary  (the  "Annual  Bonus").  Whether  Executive  receives  an Annual  Bonus  for  any  given  fiscal  year,  and  the  amount  of  any  such Annual  Bonus,  will  be
determined in the good faith discretion of the Board or its designee based upon the Company's and Executive's achievement of objectives and milestones to be determined on an
annual basis by the Board or its designee. Any such Annual Bonus will be paid prior to the fifteenth (15 th) day of the third (3rd) month following the close of the Company's
fiscal year to which such Annual Bonus relates. Except as otherwise provided in Section 6.2 herein, the Company’s payment, and the amount, of any such Annual Bonus shall
be in the sole discretion of the Company, and any such Annual Bonus will not be deemed earned unless Executive is an employee of the Company in good standing on the dates
the Annual Bonus is determined and paid.

3.                   Standard Company Benefits. Executive shall, in accordance with Company policy and the terms and conditions of the applicable Company benefit plan
documents, be eligible to participate in the benefit and fringe benefit programs provided by the Company to its U.S. based executive officers and other employees from time to
time, including, without limitation, vacation. Executive shall be entitled to four (4) weeks of vacation per year, which will accrue in accordance with Company policy.

4.                    Expenses. The Company will reimburse Executive for reasonable travel, entertainment or other expenses incurred by Executive in furtherance or in
connection with the performance of Executive's duties hereunder, in accordance with the Company's expense reimbursement policy as in effect from time to time. Any amounts
payable under this Section 4 shall be made in accordance with Treasury Regulation Section 1.409A-3(i)(1)(iv) and shall be paid on or before the last day of Executive's
taxable year following the taxable year in which Executive incurred the expenses. The amounts provided under this Section 4 during any taxable year of Executive's will
not  affect  such  amounts  provided  in  any  other  taxable  year  of  Executive's,  and  Executive's  right  to  reimbursement  for  such  amounts  shall  not  be  subject  to  liquidation  or
exchange for any other benefit.

5.                    Equity. Subject to approval by the Board, and pursuant to the Company’s equity plan (the “Plan”), the Company shall grant Executive an award of
options to purchase 400,000 shares of the Company’s common stock, at an exercise price equal to the stock’s fair market value per share on the date of grant (the “Option”). The
Option will be subject to the terms and conditions of the Plan, and the corresponding grant notice and stock option agreement, and will be subject to the Company's standard
four-year vesting schedule.

6.

Termination of Employment; Severance.

6.1                              At-Will  Employment. Executive's  employment  relationship  is  at-will.  Either  Executive  or  the  Company  may  terminate  the  employment
relationship at any time, with or without Cause (as defined below) or advance notice. If Executive's employment terminates for any reason, Executive shall not be entitled to any
payments, benefits, damages, awards or compensation other than as provided in this Agreement. Upon any termination of Executive's employment, in addition to any severance
benefits to which Executive may be entitled under Section 6.2 below, the Company shall pay to Executive (a) his or her fully earned but unpaid base salary, through the date of
termination at the rate then in effect, plus (b) all accrued but unpaid vacation, plus (c) all other amounts to which Executive is entitled under any compensation plan or practice
of  the  Company  at  the  time  of  termination  in  accordance  with  the  terms  of  such  plans  or  practices,  including,  without  limitation,  any  continuation  of  benefits  required  by
COBRA or applicable law (together, the "Accrued Obligations").

2

 
 
 
 
 
 
6.2

Termination Without Cause; Resignation for Good Reason.

below). Further, Executive may resign at any time for Good Reason (as defined in Section 10.2 below).

(i)                    

The Company may terminate Executive's employment with the Company at any time without Cause (as defined in Section 10.1

In the event Executive's employment with the Company is terminated by the Company without Cause (and other than as a result of
Executive's  death  or  Permanent  Disability  (as  defined  in  Section  6.3(i)  below)),  or  Executive  resigns  for  Good  Reason,  then  provided  that  Executive  satisfies  the  Release
Requirement in Section 7 herein, and remains in compliance with the terms of this Agreement and the Confidentiality Agreement (as defined below), the Company shall provide
Executive with the following "Severance Benefits":

(ii)                 

(a)                 A lump sum cash payment equal to Executive's annual Base Salary (i.e., a full payment of one year’s salary at the Base Salary
rate) at the time of employment termination (without giving effect to any reduction in Base Salary that would give Executive the right to resign for Good Reason) to be paid by
the Company on the first payroll date following the Effective Date of the Release (as defined below), but in no event more than seventy-five (75) days following the date of
Executive's termination of employment.

(b)               A lump sum cash payment in an amount equal to the average of the Annual Bonus payments Executive received from the
Company during the last three years of employment completed prior to the year of the employment termination (or such lesser number of years of employment completed by
Executive prior to the year of the employment termination if Executive has not yet been employed for three full years prior to the year of the employment termination), pro-
rated based on the number of days Executive worked during the fiscal year of the employment termination, divided by 365, to be paid by the Company on the first payroll date
following the Effective Date of the Release, but in no event more than seventy-five (75) days following the date of Executive's termination of employment.

(c)                If the Company has previously established a group health plan in which Executive participates prior to Executive's termination
and Executive timely elects COBRA coverage following any such termination, the Company will pay Executive for the full amount of such COBRA premiums for himself or
herself and his or her covered dependents (on a monthly basis) for a period of up to twelve (12) months following the date of termination; provided, that, if and to the extent that
any benefit described in this Section 6.2(ii)(c) is not or cannot be paid or provided under any Company plan or program without penalties or adverse tax consequences to the
Company or for any other reason, as determined by the Company in its sole discretion, then the Company shall pay Executive a fully taxable cash payment equal to the COBRA
premium for each month that such benefits cannot be so paid or provided by the Company for a period of up to twelve (12) months following the date of termination; provided,
further,  that the COBRA payments or, if applicable, the taxable monthly payment discussed above, shall terminate on the earliest to occur of (A) the close of the 12-month
period following the termination of Executive's employment; (B) the expiration of Executive's (or Executive's dependents') eligibility for coverage under COBRA; and (C) the
date when Executive becomes eligible for group health insurance coverage in connection with new employment or self-employment. If Executive becomes eligible for coverage
under  another  employer's  group  health  plan  or  otherwise  ceases  to  be  eligible  for  COBRA  coverage  during  the  period  provided  in  this  Section  6.2(ii)(c),  Executive  must
immediately provide written notice to the Company of such event, and the Company-provided COBRA payments, or if applicable, the monthly payments under this Section
6.2(ii)(c) shall immediately cease.

3

 
 
 
 
 
 
(iii)             Furthermore, in the event Executive's employment with the Company is terminated by the Company pursuant to Section 6.2(ii), in either
case, within sixty (60) days immediately preceding or twelve (12) months immediately following the consummation of a Change in Control (as defined below), then, in lieu of
(and not additional to) the severance benefits described in Section 6.2(ii), and provided that Executive satisfies the Release Requirement in Section 7 herein and remains in
compliance with the terms of this Agreement and the Confidentiality Agreement, the Company shall instead provide Executive with the following benefits (the " Change  in
Control Severance Benefits"). For the avoidance of doubt: (A) in no event will Executive be entitled to severance benefits under Section 6.2(ii) and this Section 6.2(iii), and (B)
if the Company has commenced providing severance benefits to Executive under Section 6.2(ii) prior to the date that Executive becomes eligible to receive Change in Control
Severance Benefits under this Section 6.2(iii), the benefits previously provided to Executive under Section 6.2(ii) of this Agreement shall reduce the severance benefits provided
under this Section 6.2(iii):

(a)                 A lump sum cash payment in an amount equal to eighteen (18) months of Executive's annual Base Salary (without giving
effect to any reduction in Base Salary that would give Executive the right to resign for Good Reason), to be paid in a single lump sum during the first payroll date following the
later of (i) the Effective Date of the Release or (ii) if Executive's termination of employment occurs prior to a Change in Control, the date of such Change in Control, but in no
event more than seventy-five (75) days following the date of Executive's termination of employment.

(b)               A lump sum cash payment in an amount equal to 150% of the average of the Annual Bonus payments Executive received from
the Company during the last three years of employment completed prior to the year of the employment termination (or such lesser number of years of employment completed by
Executive prior to the year of the employment termination if Executive has not yet been employed for three full years prior to the year of the employment termination), pro-
rated  based  on  the  number  of  days  Executive  worked  during  the  fiscal  year  of  the  employment  termination,  divided  by  three  hundred  sixty-five  (365),  to  be  paid  by  the
Company  on  the  first  payroll  date  following  the  later  of  (i)  the  Effective  Date  of  the  Release  or  (ii)  if  Executive's  termination  of  employment  occurs  prior  to  a  Change  in
Control, the date of such Change in Control, but in no event more than seventy-five (75) days following the date of Executive's termination of employment.

(c)                If the Company has previously established a group health plan in which Executive participates prior to Executive's termination
and Executive timely elects COBRA coverage following any such termination, the Company will pay Executive for the full amount of such COBRA premiums for himself or
herself and his or her covered dependents (on a monthly basis) for a period of up to twelve (12) months following the date of termination; provided, that, if and to the extent that
any benefit described in this Section 6.2(iii)(c) is not or cannot be paid or provided under any Company plan or program without penalties or adverse tax consequences to the
Company or for any other reason, as determined by the Company in its sole discretion, then the Company shall pay Executive a fully taxable cash payment equal to the COBRA
premium for each month that such benefits cannot be so paid or provided by the Company for a period of up to twelve (12) months following the date of termination; provided,
further,  that the COBRA payments or, if applicable, the monthly payment discussed above, shall terminate on the earliest to occur of (A)  the  close  of  the  12-month  period
following the termination of Executive's employment; (B) the expiration of Executive's (or Executive's covered dependents) eligibility for coverage under COBRA; and (C) the
date when Executive becomes eligible for group health insurance coverage in connection with new employment or self-employment. If Executive becomes eligible for coverage
under  another  employer's  group  health  plan  or  otherwise  ceases  to  be  eligible  for  COBRA  coverage  during  the  period  provided  in  this  Section  6.2(iii)(c),  Executive  must
immediately provide written notice to the Company of such event, and the Company-provided COBRA payments, or if applicable, the monthly payments under this Section
6.2(iii)(c) shall immediately cease.

4

 
 
 
 
(d)               Notwithstanding anything to the contrary set forth in the Company's equity plan or form of award agreement, effective as of
Executive's  employment  termination  date,  the  vesting  and  exercisability  of  all  then  outstanding  unvested  Stock Awards  (as  defined  below)  then  held  by  Executive  shall
accelerate  such  that  all  shares  become  immediately  vested  and  exercisable,  if  applicable,  by  Executive  upon  such  termination  and  shall  remain  exercisable,  if  applicable,
following Executive's termination as set forth in the applicable equity award documents.

6.3               Termination for Cause; Resignation Without Good Reason; Death or Permanent Disability.

(i)                  The Company may terminate Executive's employment with the Company for Cause. Further, Executive may resign at any time without Good
Reason.  Executive's  employment  with  the  Company  will  also  terminate  automatically  upon  Executive's  death.  Executive's  employment  may  also  be  terminated  following
Executive's  "Permanent  Disability."  For  purposes  of  this Agreement,  “Permanent  Disability”  shall  be  deemed  to  have  occurred  if  Executive  shall  become  physically  or
mentally incapacitated or disabled or otherwise unable fully to discharge his duties hereunder for a period of ninety (90) consecutive calendar days or for one hundred twenty
(120) calendar days in any one hundred eighty (180) calendar-day period. The existence of Executive's Permanent Disability shall be determined by the Company on the advice
of a duly licensed physician reasonably acceptable to the Company and Executive.

(ii)                              If  Executive  resigns  without  Good  Reason,  or  the  Company  terminates  Executive's  employment  for  Cause,  or  upon  Executive's  death  or
following Executive's Permanent Disability, then (a) Executive will no longer vest in his or her Stock Awards, (b) all payments of compensation by the Company to Executive
hereunder  will  terminate  immediately  (except  as  to  amounts  already  earned  and  the Accrued  Obligations),  and  (c)  Executive  will  not  be  entitled  to  any  severance  benefits,
including (without limitation) the Severance Benefits and Change in Control Benefits listed in Sections 6.2(ii) and 6.2(iii). In addition, Executive shall resign from all positions
and terminate any relationships as an employee, advisor, officer or director with the Company and any of its affiliates, each effective on the date of termination. In the event of
Executive's death or Permanent Disability, Executive, or his estate or heirs, as the case may be, shall also be entitled to any life insurance or disability benefits provided under
the Company's benefit plans in which Executive participates, subject to the terms and conditions of such plans.

5

 
 
 
 
7.                    Conditions to Receipt of Severance Benefits and Change in Control Severance Benefits. Notwithstanding the foregoing, to be eligible for any of the
Severance Benefits or Change in Control Severance Benefits, on or within sixty (60) days following the termination of employment, Executive must satisfy the requirement (the
"Release Requirement") to return to the Company a signed and dated general release of all known and unknown claims in a form acceptable to the Company (the "Release and
Waiver")  and  allow  that  Release  and  Waiver  to  become  effective  in  accordance  with  its  terms  (such  date,  the  "Effective  Date  of  the  Release").  No  Severance  Benefits  or
Change  in  Control  Severance  Benefits  will  be  paid  hereunder  prior  to  the  Effective  Date  of  the  Release. Accordingly,  if  Executive  breaches  the  preceding  sentence  and/or
refuses to sign and deliver to the Company an executed Release and Waiver within the foregoing time period or signs and delivers to the Company the Release and Waiver but
exercises his or her right, if any, under applicable law to revoke the Release and Waiver (or any portion thereof), then Executive will not be entitled to any severance, payment
or benefit under this Agreement.

8.                   Section 409A. It is intended that all of the severance benefits and other payments payable under this Agreement satisfy, to the greatest extent possible, the
exemptions from the application of Section 409A of the Internal Revenue Code of 1986, as amended (the "Code") and the regulations and other guidance thereunder and any
state law of similar effect (collectively "Section 409A"), provided under Treasury Regulations l.409A-1(b)(4), 1.409A- l (b)(5) and 1.409A-l (b)(9), and this Agreement will be
construed to the greatest extent possible as consistent with those provisions, and to the extent not so exempt, this Agreement (and any definitions hereunder) will be construed
in a manner that complies with Section 409A. For purposes of Code Section 409A (including, without limitation, for purposes of Treasury Regulation Section 1.409A-2(b)(2)
(iii)),  Executive's  right  to  receive  any  installment  payments  under  this Agreement  (whether  severance  payments,  reimbursements  or  otherwise)  shall  be  treated  as  a  right  to
receive a series of separate payments and, accordingly, each installment payment hereunder shall at all times be considered a separate and distinct payment. Notwithstanding
anything herein to the contrary, to the extent any payments to Executive pursuant to this Agreement (including the Severance Benefits or Change in Control Severance Benefits)
constitute “non-qualified deferred compensation” subject to Section 409A of the Code, then, to the extent required by Section 409A of the Code (including, without limitation,
to secure an exemption from or to comply with Section 409A), no amount shall be payable pursuant to such sections unless Executive's termination of employment constitutes a
“separation from service” with the Company (as defined under Treasury Regulation Section 1.409A-1(h), without regard to any alternative definition thereunder, a "Separation
from Service"). Notwithstanding any provision to the contrary in this Agreement, if Executive is deemed by the Company at the time of Executive's Separation from Service to
be a "specified employee" for purposes of Code Section 409A(a)(2)(B)(i), and if any of the payments upon Separation from Service set forth herein and/or under any other
agreement with the Company are deemed to be "deferred compensation", then to the extent delayed commencement of any portion of such payments is required in order to
avoid a prohibited distribution under Code Section 409A(a)(2)(B)(i) and the related adverse taxation under Section 409A, such payments shall not be provided to Executive
prior to the earliest of (a) the expiration of the six-month and one day period measured from the date of Executive's Separation from Service with the Company, (b) the date of
Executive's death or (c) such earlier date as permitted under Section 409A without the imposition of adverse taxation. Upon the first business day following the expiration of
such applicable Code Section 409A(a)(2)(B)(i) period, all payments deferred pursuant to this Paragraph shall be paid in a lump sum to Executive, and any remaining payments
due shall be paid as otherwise provided herein or in the applicable agreement. No interest shall be due on any amounts so deferred. If any severance benefits provided under this
Agreement  constitute  "non-qualified  deferred  compensation"  under  Section  409A,  any  such  severance  benefits  shall  not  be  paid,  or  in  the  case  of  installments  shall  not
commence  payment,  until  the  sixtieth  (60th)  day  following  the  Executive's  Separation  from  Service  (the  "Initial  Payment  Date"),  regardless  of  when  the  Release  actually
becomes effective (and any payments scheduled to be made prior to such Initial Payment Date shall instead accrue and be paid in a single lump sum on such Initial Payment
Date) and the remaining payments shall be made as provided in this Agreement.

6

 
 
9.

Section 280G; Limitations on Payment.

9.1               If any payment or benefit Executive will or may receive from the Company or otherwise (a "280G Payment") would (a) constitute a "parachute
payment" within the meaning of Section 280G of the Code, and (b) but for this sentence, be subject to the excise tax imposed by Section 4999 of the Code (the "Excise Tax"),
then any such 280G Payment provided pursuant to this Agreement (a "Payment") shall be equal to the Reduced Amount. The "Reduced Amount" shall be either (x) the largest
portion of the Payment that would result in no portion of the Payment (after reduction) being subject to the Excise Tax or (y) the largest portion, up to and including the total, of
the Payment, whichever amount (i.e., the amount determined by clause (x) or by clause (y)), after taking into account all applicable federal, state and local employment taxes,
income taxes, and the Excise Tax (all computed at the highest applicable marginal rate), results in Executive's receipt, on an after-tax basis, of the greater economic benefit
notwithstanding that all or some portion of the Payment may be subject to the Excise Tax. If a reduction in a Payment is required pursuant to the preceding sentence and the
Reduced Amount is determined pursuant to clause (x) of the preceding sentence, the reduction shall occur in the manner (the "Reduction Method") that results in the greatest
economic benefit for Executive. If more than one method of reduction will result in the same economic benefit, the items so reduced will be reduced pro rata (the "Pro Rata
Reduction Method").

9.2               Notwithstanding any provision of Section 9.1 to the contrary, if the Reduction Method or the Pro Rata Reduction Method would result in any
portion of the Payment being subject to taxes pursuant to Section 409A that would not otherwise be subject to taxes pursuant to Section 409A, then the Reduction Method
and/or the Pro Rata Reduction Method, as the case may be, shall be modified so as to avoid the imposition of taxes pursuant to Section 409A as follows: (A) as a first priority,
the  modification  shall  preserve  to  the  greatest  extent  possible,  the  greatest  economic  benefit  for  Executive  as  determined  on  an  after-tax  basis;  (B)  as  a  second  priority,
Payments that are contingent on future events (e.g., being terminated without Cause), shall be reduced (or eliminated) before Payments that are not contingent on future events;
and  (C)  as  a  third  priority,  Payments  that  are  "deferred  compensation"  within  the  meaning  of  Section  409A  shall  be  reduced  (or  eliminated)  before  Payments  that  are  not
deferred compensation within the meaning of Section 409A.

9.3                    Unless Executive and the Company agree on an alternative accounting firm or law firm, the accounting firm engaged by the Company for
general tax compliance purposes as of the day prior to the effective date of the Change in Control transaction shall perform the foregoing calculations. If the accounting firm so
engaged  by  the  Company  is  serving  as  accountant  or  auditor  for  the  individual,  entity  or  group  effecting  the  Change  in  Control  transaction,  the  Company  shall  appoint  a
nationally recognized accounting or law firm to make the determinations required by this Section 9. The Company shall bear all expenses with respect to the determinations by
such accounting or law firm required to be made hereunder. The Company shall use commercially reasonable efforts to cause the accounting or law firm engaged to make the
determinations hereunder to provide its calculations, together with detailed supporting documentation, to Executive and the Company within fifteen (15) calendar days after the
date on which Executive's right to a 280G Payment becomes reasonably likely to occur (if requested at that time by Executive or the Company) or such other time as requested
by Executive or the Company.

7

 
 
 
 
9.4               If Executive receives a Payment for which the Reduced Amount was determined pursuant to clause (x) of Section 9.1 and the Internal Revenue
Service determines thereafter that some portion of the Payment is subject to the Excise Tax, Executive agrees to promptly return to the Company a sufficient amount of the
Payment (after reduction pursuant to clause (x) of Section 9.1) so that no portion of the remaining Payment is subject to the Excise Tax. For the avoidance of doubt, if the
Reduced Amount  was  determined  pursuant  to  clause  (y)  of  Section  9.1,  Executive  shall  have  no  obligation  to  return  any  portion  of  the  Payment  pursuant  to  the  preceding
sentence.

10.

Definitions.

10.1             Cause. For purposes of this Agreement, "Cause" for termination will mean: (a) Executive's commission of any felony or commission of a crime
involving dishonesty; (b) Executive's participation in any fraud against the Company; (c) a material breach of Executive's duties to the Company; (d) Executive's persistent
unsatisfactory performance of his job duties; (e) Executive's intentional damage to any property of the Company; (f) Executive's misconduct, or other violation of Company
policy that causes harm to the Company; and (g) Executive's breach of any material provision of this Agreement or any other written agreement between Executive and the
Company; provided, however, that prior to the determination that “Cause” under this Section 10.1 has occurred, the Company shall (i) provide to Executive a written notice
providing,  in  reasonable  detail,  the  reasons  for  the  determination  that  such  “Cause”  exists,  (ii)  other  than  with  respect  to  clause  (a)  above,  afford  Executive  a  reasonable
opportunity  to  remedy  any  such  event  or  breach  (if  deemed  curable),  (iii)  provide  Executive  an  opportunity  to  be  heard  prior  to  the  final  decision  to  terminate  Executive's
employment hereunder for such “Cause” and (iv) make any decision that such “Cause” exists in good faith.

10.2             Good Reason. For purposes of this Agreement, Executive shall have "Good Reason" for resignation from employment with the Company if any
of the following actions are taken by the Company without Executive's prior written consent: (a) a material reduction in Executive's Base Salary, other than in connection with
an across-the-board decrease of base salaries applicable to all senior executives of the Company; (b) a material reduction in Executive's duties (including responsibilities and/or
authorities), provided,  however, that a change in job position (including a change in title) shall not be deemed a "material reduction" in and of itself unless Executive's new
duties are materially reduced from the prior duties; or (c) relocation of Executive's principal place of employment to a place that increases Executive's one-way commute from
the Executive’s residence  (after  the  relocation  agreed  by  Executive  and  the  Company  in  Section  1.2)  by  more  than  fifty  (50)  miles  as  compared  to  Executive's  then-current
principal place of employment immediately prior to such relocation. In order for Executive to resign for Good Reason, each of the following requirements must be met: (i)
Executive must provide written notice to the Company's Chief Executive Officer within 60 days after the first occurrence of the event giving rise to Good Reason setting forth
the basis for Executive's resignation, (ii) the Executive must allow the Company at least 30 days from receipt of such written notice to cure such event (the "Cure Period"), (iii)
such event is not reasonably cured by the Company within the Cure Period, and (iv) Executive must resign from all positions Executive then holds with the Company not later
than 30 days after the expiration of the Cure Period.

8

 
 
 
 
10.3                 Change  in  Control. For purposes of this Agreement, "Change in Control" shall mean the consummation of any of the following: (a) the
acquisition of the Company by another entity by means of any transaction or series of related transactions to which the Company is party (including, without limitation, any
stock acquisition, reorganization, merger or consolidation but excluding any sale of stock for capital raising purposes) other than a transaction or series of transactions in which
the holders of the voting securities of the Company outstanding immediately prior to such transaction continue to retain (either by such voting securities remaining outstanding
or by such voting securities being converted into voting securities of the surviving entity), following such transaction, at least fifty percent  (50%)  of  the  total  voting  power
represented by the voting securities of the surviving entity outstanding immediately after such transaction or series of transactions; (b) a sale, lease or other conveyance of all or
substantially  all  of  the  assets  of  the  Company;  or  (c)  any  liquidation,  dissolution  or  winding  up  of  the  Company,  whether  voluntarily  or  involuntarily.  Notwithstanding  the
foregoing, the Company and Executive agree that Change in Control does not include any reorganization, sale or plan of arrangement undertaken to move the domicile of the
Company  to  the  U.S.,  pursuant  to  which  the  Company  will  become  a  wholly-owned  subsidiary  of  a  Delaware  corporation.  Notwithstanding  the  foregoing,  if  a  Change  in
Control constitutes a payment event with respect to any payment hereunder that provides for the deferral of compensation that is subject to Section 409A, to the extent required
to avoid the imposition of additional taxes under Section 409A, the transaction or event with respect to such payment shall only constitute a Change in Control for purposes of
the payment timing of such payment if such transaction also constitutes a “change in control event,” as defined in Treasury Regulation Section 1.409A-3(i)(5).

incentive award plans or agreements and any shares of stock issued upon exercise thereof.

10.4                

"Stock Awards" means all stock options, restricted stock and such other awards granted pursuant to the Company’s stock option and equity

11.

Confidential Information Obligations.

Employee Proprietary Information and Inventions Assignment Agreement (the "Confidentiality Agreement").

11.1             Confidential Information Agreement. As a condition of employment, Executive shall execute and abide by the Company's standard form of

11.2             Third-Party Agreements and Information. Executive represents and wan-ants that Executive's employment by the Company does not conflict
with  any  prior  employment  or  consulting  agreement  or  other  agreement  with  any  third  party,  and  that  Executive  will  perform  Executive's  duties  to  the  Company  without
violating any such agreement. Executive represents and warrants that Executive does not possess confidential information arising out of prior employment, consulting, or other
third party relationships, that would be used in connection with Executive's employment by the Company, except as expressly authorized by that third party. During Executive's
employment by the Company, Executive will use in the performance of Executive's duties only information which is generally known and used by persons with training and
experience  comparable  to  Executive's  own,  common  knowledge  in  the  industry,  otherwise  legally  in  the  public  domain,  or  obtained  or  developed  by  the  Company  or  by
Executive in the course of Executive's work for the Company.

11.3             Return of Company Property. If Executive's employment is  terminated  for  any  reason,  the  Company  shall  have  the  right,  at  its  option,  to
require Executive to vacate his or her offices prior to or on the effective date of termination and to cease all activities on the Company’s behalf. Upon the termination of his or
her employment in any manner, as a condition to the Executive's receipt of any post-termination benefits described in this Agreement, Executive shall immediately surrender to
the Company all lists, books, records and documents of, or in connection with, the Company’s business, and all other property belonging to the Company, it being distinctly
understood that all such lists, books and records, and other documents and property, are the property of the Company. Executive shall deliver to the Company a signed statement
certifying compliance with this Section 11.3 prior to the receipt of any post-termination benefits described in this Agreement.

9

 
 
 
 
 
 
12 below, the Company shall have all of the rights and remedies available to the Company under law or in equity.

11.4            Rights and Remedies Upon Breach. If Executive breaches or threatens to commit a breach of any of the provisions of this Section 11 or Section

11.5             Whistleblower Provision.  Nothing  herein  shall  be  construed  to  prohibit  Executive  from  communicating  directly  with,  cooperating  with,  or
providing  information  to,  any  government  regulator,  including,  but  not  limited  to,  the  U.S.  Securities  and  Exchange  Commission,  the  U.S.  Commodity  Futures  Trading
Commission, or the U.S. Department of Justice. Executive acknowledges that the Company has provided Executive with the following notice of immunity rights in compliance
with the requirements of the Defend Trade Secrets Act: (a) Executive shall not be held criminally or civilly liable under any Federal or State trade secret law for the disclosure
of proprietary information of the Company that is made in confidence to a Federal, State, or local government official or to an attorney solely for the purpose of reporting or
investigating a suspected violation of law, (b) Executive shall not be held criminally or civilly liable under any Federal or State trade secret law for the disclosure of proprietary
information of the Company that is made in a complaint or other document filed in a lawsuit or other proceeding, if such filing is made under seal and (c) if Executive files a
lawsuit for retaliation by the Company for reporting a suspected violation of law, Executive may disclose the proprietary information to my attorney and use the proprietary
information in the court proceeding, if Executive files any document containing the proprietary information under seal, and does not disclose the proprietary information, except
pursuant to court order.

12.

Outside Activities During Employment; Non-Solicitation.

12.1             Non-Company Business. Except with the prior written consent of the Board or the Chief Executive Officer of the Company, Executive will not
during  the  term  of  Executive's  employment  with  the  Company  undertake  or  engage  in  any  other  employment,  occupation  or  business  enterprise,  other  than  ones  in  which
Executive is a passive investor. Subject to the terms of the Confidentiality Agreement and Section 12.2 below, Executive may engage in civic and not-for-profit activities so
long as such activities do not materially interfere with the performance of Executive's duties hereunder. Executive agrees that he or she will not join any boards, other than civic
and not-for-profit boards (which do not materially interfere with Executive's duties to the Company), without the prior written approval of the Board, which approval shall not
be unreasonably withheld.

12.2            

No  Adverse  Interests. During  the  term  of  Executive's  employment,  Executive  agrees  not  to  acquire,  assume  or  participate  in,  directly  or
indirectly,  any  position,  investment  or  interest  known  to  be  adverse  or  antagonistic  to  the  Company,  its  business  or  prospects,  financial  or  otherwise.  In  addition,  and  in
furtherance of the provisions of this Section 12, except as may otherwise be approved in writing by the Board or the Chief Executive Officer of the Company, during the period
of Executive's employment, Executive shall not have any ownership interest (of record or beneficial) in, or perform services as an employee, salesman, consultant, independent
contractor, officer or director of, or otherwise aid or assist in any manner, any firm, corporation, partnership, proprietorship or other business that engages in any county, city or
part thereof in the United States and/or any foreign country in a business which competes directly or indirectly (as determined by the Board) with the Company’s business in
such county, city or part thereof, so long as the Company, or any successor in interest of the Company to the business and goodwill of the Company, remains engaged in such
business in such county, city or part thereof or continues to solicit customers or potential customers therein; provided, however, that Executive may own, directly or indirectly,
solely as an investment, securities of any entity which are traded on any national securities exchange if Executive (a) is not a controlling person of, or a member of a group
which controls, such entity; or (b) does not, directly or indirectly, own one percent (1%) or more of any class of securities of any such entity.

10

 
 
 
 
 
12.3             Solicitation of Employees. Executive shall not during the term of Executive’s employment and for a period of twelve (12) months following
Executive’s termination of employment, directly or indirectly, solicit or encourage to leave the employment of the Company or any of its subsidiaries, any employee of the
Company or any of its subsidiaries.

13.               Insurance; Indemnification. The Company shall have the right to take out life, health, accident, “key-man” or other insurance covering Executive, in the
name of the Company and at the Company’s expense in any amount deemed appropriate by the Company. Executive shall assist the Company in obtaining such insurance,
including, without limitation, submitting to any required examinations and providing information and data required by insurance companies. Executive will be provided with
indemnification against third party claims related to his or her work for the Company as required by applicable law, including advancement of attorneys’ fees and costs related
to any such indemnification as provided by applicable law. The Company shall provide Executive with directors and officers liability insurance coverage at least as favorable as
that which the Company may maintain from time to time for the directors of the Company or the other executive officers.

14.               Dispute Resolution.

14.1            

In the event of any dispute, claim, cause of action or disagreement (a “Dispute”) arising out of or in connection to this Agreement, including,
without limitation, the negotiation, execution, interpretation, performance or non-performance of this Agreement, as well as Executive's employment with the Company or the
termination thereof, the Parties shall attempt to resolve the Dispute in non-binding mediation administered by JAMS, Inc. ("JAMS") or its successors. The parties shall agree on
a mediator or if they cannot agree, the dispute shall be submitted to the mediation process of JAMS. The place of mediation shall be San Diego, California. If the Dispute is not
resolved pursuant to the foregoing procedure within thirty (30) days after the initial mediation meeting among the parties and the mediator, or if the mediation is otherwise
terminated, then either Party may submit the Dispute to arbitration pursuant to Section 14.2 below. Each Party shall pay the fees of its own attorneys and all other expenses
connected with presenting its case. Other costs of the mediation, including JAMS' administrative fees, the fee of the mediator, and all other fees and costs, shall be borne by the
Company.

14.2             To ensure the rapid and economical resolution of Disputes, including any and all Disputes, in law or equity, including but not limited to statutory
claims, arising from or relating to the enforcement, breach, performance, or interpretation of this Agreement, Executive's employment with the Company, or the termination of
Executive's  employment  from  the  Company,  shall  be  resolved  pursuant  to  the  Federal Arbitration Act,  9  U.S.C.  §1-16,  and  to  the  fullest  extent  permitted  by  law,  by  final,
binding and confidential arbitration conducted in San Diego, California by JAMS or its successors before a single arbitrator, under the JAMS Employment Arbitration Rules &
Procedures (which can be found at https://www.jamsadr.com/rules-employment-arbitration/, and which will be provided to Executive on request); provided that the arbitrator
shall issue a written arbitration decision including the arbitrator’s essential findings and conclusions and a statement of the award. The judgment and award rendered by the
arbitrator may be entered in any court or tribunal of competent jurisdiction. This Section 14 is intended to be the exclusive method for resolving any and all claims by the parties
against  each  other  for  payment  of  damages  under  this Agreement  or  relating  to  Executive’s  employment;  provided, however,  that  (i)  Executive  shall  retain  the  right  to  file
administrative  charges  with  or  seek  relief  through  any  government  agency  of  competent  jurisdiction,  and  to  participate  in  any  government  investigation,  including  but  not
limited to (a) claims for workers’ compensation, state disability insurance or unemployment insurance; (b) claims for unpaid wages or waiting time penalties brought before the
California Division of Labor Standards Enforcement (or any similar agency in any applicable jurisdiction other than California); provided, however, that any appeal from an
award or from denial of an award of wages and/or waiting time penalties shall be arbitrated pursuant to the terms of this Agreement; and (c) claims for administrative relief
from  the  United  States  Equal  Employment  Opportunity  Commission  and/or  the  California  Department  of  Fair  Employment  and  Housing  (or  any  similar  agency  in  any
applicable jurisdiction other than California). Executive and the Company shall be entitled to all rights and remedies that either would be entitled to pursue in a court of law;
provided, however, that in no event shall the arbitrator be empowered to hear or determine any class or collective claim of any type. Nothing in this Agreement is intended to
prevent either Executive or the Company from obtaining injunctive relief (or any other provisional remedy) in any court of competent jurisdiction pursuant to California Code
of Civil Procedure Section 1281.8 (or similar statute of an applicable jurisdiction) to prevent irreparable harm (including, without limitation, pending the conclusion of any
arbitration),  which,  to  the  extent  applicable,  shall  be  brought  in  the  state  or  federal  courts  of  California,  as  applicable. The  Company  shall  pay  all  fees  relating  to  the
administration of the arbitration, including the arbitrator’s fees, arbitration expenses and any other costs unique to the arbitration proceeding (recognizing that each side shall
bear its own deposition, witness, expert and attorney’s fees and other expenses to the same extent as if the matter were being heard in court). In the event that a Party refuses to
acknowledge his or its obligation to arbitrate a Dispute or files an action in court that is subject to arbitration pursuant to this Section 14.2, and the Executive or the Company
seeks to compel arbitration pursuant to this Section 14.2, or if either Party brings an action to enforce an arbitration award hereunder, the prevailing party shall  be  entitled  to
attorneys'  fees and costs  pursuant  to  applicable  law.  In  addition, if a  Party  to  this Agreement  hereafter  pursues  any  dispute  by  any  method  other than as set forth  herein,  the
responding  Party  shall  be  entitled to  recover from the initiating  Party  all damages, costs,  expenses  and  attorneys'  fees incurred as  a  result  of defending  such action.  BOTH
EXECUTIVE AND THE COMPANY ACKNOWLEDGE THAT BY AGREEING TO THIS ARBITRATION PROCEDURE, EACH WAIVES THE RIGHT TO RESOLVE
ANY SUCH DISPUTE THROUGH A TRIAL BY JURY OR JUDGE OR ADMINISTRATIVE PROCEEDING.

11

 
 
 
 
 
15.

General Provisions.

15.1             Notices. Any notices provided must be in writing and will be deemed effective upon the earlier of personal delivery (including delivery by email
or facsimile transmission upon acknowledgment of receipt of electronic transmission) or the next day after sending by overnight carrier, to the Company at its primary office
location (with any email notice to the Chief Executive Officer of the Company at his primary Company email address) and to Executive at the address (or email address) as
listed on the Company payroll.

15.2            

Severability. Whenever  possible,  each  provision  of  this Agreement  will  be  interpreted  in  such  manner  as  to  be  effective  and  valid  under
applicable law, but if any provision of this Agreement is held to be invalid, illegal or unenforceable in any respect under any applicable law or rule in any jurisdiction, such
invalidity,  illegality  or  unenforceability  will  not  affect  any  other  provision  or  any  other  jurisdiction,  but  this Agreement  will  be  reformed,  construed  and  enforced  in  such
jurisdiction to the extent possible in keeping with the intent of the Parties.

12

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
have waived any preceding or succeeding breach of the same or any other provision of this Agreement.

15.3             Waiver. Any waiver of any breach of any provisions of this Agreement must be in writing to be effective, and it shall not thereby be deemed to

15.4               Complete Agreement. This Agreement, together with the Confidentiality Agreement, constitutes the entire agreement between Executive and
the Company with regard to the subject matter hereof and is the complete, final, and exclusive embodiment of the Company's and Executive's agreement with regard to this
subject matter, and supersedes any prior agreements between Executive and the Company, including, without limitation, the offer letter between Executive and the Company
dated November 6, 2019. This Agreement is entered into without reliance on any promise or representation, written or oral, other than those expressly contained herein, and it
supersedes any other such promises, warranties or representations. It cannot be modified or amended except in a writing signed by Executive and a duly authorized officer of the
Company.

but both of which taken together will constitute one and the same Agreement.

15.5               Counterparts. This Agreement may be executed in separate counterparts, any one of which need not contain signatures of more than one Party,

affect the meaning thereof.

15.6               Headings. The headings of the paragraphs hereof are inserted for convenience only and shall not be deemed to constitute a part hereof nor to

15.7               Successors and Assigns. This Agreement is intended to bind and inure to the benefit of and be enforceable by Executive and the Company, and
their respective successors, assigns, heirs, executors and administrators, except that Executive may not assign any of his or her duties hereunder and he or she may not assign
any of his or her rights hereunder without the written consent of the Company, which shall not be withheld unreasonably.

15.8            Tax Withholding. All amounts payable to Executive will be subject to appropriate payroll deductions and withholdings.

15.9             Governing Law; Consent to Personal Jurisdiction. This Agreement shall be governed by and construed in accordance with the laws of the
State  of  California  without  regard  to  the  conflict  of  laws  provisions  thereof.  Executive  hereby  expressly  consents  to  the  personal  jurisdiction  of  the  state  and  federal  courts
located in San Diego County, California for any lawsuit filed by Executive or by the Company arising from or related to this Agreement or Executive's employment with the
Company

any termination of this Agreement.

15.10        Survival. The covenants, agreements, representations and warranties contained in or made in Sections 6 through 15 of this Agreement shall survive

Party to this Agreement.

15.11         Third-Party Beneficiaries. This Agreement does not create, and shall not be construed as creating, any rights enforceable by any person not a

13

 
 
 
 
 
 
 
 
 
[Signature Page Follows]

14

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
IN WITNESS WHEREOF, the Parties have executed this Agreement on the day and year first written above.

APTOSE BIOSCIENCES INC.

By: ___________________________________
Name: William G. Rice, Ph.D.
Title: Chairman, President & CEO

Date: __________________________________

EXECUTIVE

_______________________________________
Print Name: Rafael Bejar, M.D., Ph.D.

Date: __________________________________

15

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Name

Aptose Biosciences U.S. Inc.
NuChem Pharmaceuticals Inc.

Subsidiaries of the Registrant

State/Jurisdiction of Incorporation

Delaware
Ontario, Canada

Exhibit 21.1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 23.1

KPMG LLP
Vaughan Metropolitan Centre 100 New Park Place, Suite 1400 Vaughan, ON L4K 0J3
Canada
Tel 905-265-5900
Fax 905-265-6390

Consent of Independent Registered Public Accounting Firm

The Board of Directors
Aptose Biosciences Inc.

We, KPMG LLP, consent to the incorporation by reference in the registration statement (No. 333-235730) on Form S-3 of common shares or warrants or any combination of
those securities, either individually or in units, up to an aggregate initial offering price of $200,000,000 and by reference in the registration statements on Form S-8 (No. 333-
228794) and (No.333-205158) related to the stock incentive plan of Aptose Biosciences Inc. (the Company), of our report dated March 10, 2020, on the consolidated financial
statements of the Company, which comprise the consolidated statements of financial position as at December 31, 2019 and December 31, 2018, the related consolidated
statements of loss and comprehensive loss, changes in shareholders’ equity and cash flows for each of the years in the two-year period ended December 31, 2019, and the
related notes, (collectively, the consolidated financial statements), and to the reference to our firm under the heading “Experts” in the registration statement.

Our report dated March 10, 2020, on the consolidated financial statements referred to above contains an explanatory paragraph indicating the Company has changed its method
of accounting for leases on January 1, 2019, due to the adoption of Financial Accounting Standards Board, ASU No. 2016-02, Leases (Topic 842).

Chartered Professional Accountants, Licensed Public Accountants
March 10, 2020
Vaughan, Canada

KPMG LLP is a Canadian limited liability partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International
Cooperative (“KPMG International”), a Swiss entity. KPMG Canada provides services to KPMG LLP.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 31.1

Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, William G. Rice, certify that:

1.

I have reviewed this Annual Report on Form 10-K of Aptose Biosciences Inc.;

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 fourth fiscal quarter that has

materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5. The registrant's other certifying 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 10, 2020

/s/ William G. Rice
Name: William G. Rice, Ph.D.
Title: President and Chief Executive Officer

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 31.2

Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Gregory K. Chow, certify that:

1.

I have reviewed this Annual Report on Form 10-K of Aptose Biosciences Inc.;

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 fourth fiscal quarter that has

materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5. The registrant's other certifying 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 10, 2020

/s/ Gregory K. Chow
Name: Gregory K. Chow
Title: Executive Vice President and Chief Financial Officer

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, I, William G. Rice, the President and Chief Executive

Officer of Aptose Biosciences Inc. (the “Company”), hereby certify that, to my knowledge:

1. The Annual Report on Form 10-K for the year ended December 31, 2019 (the “Report”) of the Company fully complies with the requirements of Section 13(a) or

Section 15(d) of the Securities Exchange Act of 1934; and

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

Date: March 10, 2020

Exhibit 32.1

/s/ William G. Rice
Name: William G. Rice, Ph.D.
Title: President and Chief Executive Officer

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 32.2

Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, I, Gregory K. Chow, the Executive President and Chief

Financial Officer of Aptose Biosciences Inc. (the “Company”), hereby certify that, to my knowledge:

1. The Annual Report on Form 10-K for the year ended December 31, 2019 (the “Report”) of the Company fully complies with the requirements of Section 13(a) or

Section 15(d) of the Securities Exchange Act of 1934; and

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

Date: March 10, 2020

/s/ Gregory K. Chow
Name: Gregory K. Chow
Title: Executive Vice President and Chief Financial Officer