Document:

Exhibit 10.3

 

Execution Version

 

AMENDMENT AND CONSENT

 

This Amendment and Consent (this “Amendment
and Consent”) is entered into on _______________, 2022, by and between AMCI Acquisition Corp. II, a Delaware corporation (the
 “Company”), and the undersigned subscriber (“Subscriber”).

 

WHEREAS, the Company and Subscriber entered into
that certain Subscription Agreement, dated as of October 18, 2022 (the “Subscription Agreement”), pursuant to which
Subscriber agreed to subscribe for and purchase from the Company, and the Company agreed to issue and sell to Subscriber, that number
of shares of the Company’s Class A common stock, par value $0.0001 per share (the “Class A Common Stock”), set
forth on the signature page thereto (the “Subscribed Shares”), for a purchase price of $10.00 per share (the “Per
Share Price” and the aggregate of such Per Share Price for all Subscribed Shares being referred to herein as the “Purchase
Price”);

 

WHEREAS, on March 8, 2022, the Company entered
into a definitive agreement with LanzaTech NZ, Inc., a Delaware corporation (“LanzaTech”), and the other parties thereto,
providing for a business combination between the Company and LanzaTech (the “Merger Agreement” and the transactions
contemplated by the Merger Agreement, the “Transaction”);

 

WHEREAS, the Company desires to amend the Merger
Agreement in the form attached hereto as Annex A (the “Merger Agreement Amendment”) and, pursuant to Section
2(e) of the Subscription Agreement, the consent of Subscriber in writing is required in order to amend certain provisions of the Merger
Agreement; and

 

WHEREAS, the Company and Subscriber desire to
amend the Subscription Agreement in order to align its terms with the proposed amendment to the Merger Agreement.

 

NOW, THEREFORE, in consideration of the foregoing
and the mutual representations, warranties and covenants, and subject to the conditions, herein contained, and intending to be legally
bound hereby, the Company and Subscriber hereto hereby agree as follows:

 

1.                  
Capitalized terms used in this Amendment and Consent but not otherwise defined herein have the meanings ascribed thereto in the
Subscription Agreement.

 

2.                  
Subscriber hereby consents, for all purposes under the Subscription Agreement, to the Merger Agreement Amendment, in the form attached
hereto as Annex A.

 

3.                  
Effective as of the effective date of the Merger Agreement Amendment, the first recital of the Subscription Agreement shall be
amended to include the words “as amended, amended and restated or supplemented from time to time” immediately before the words
 “the ‘Merger Agreement’”.

 

4.                  
Effective as of the effective date of the Merger Agreement Amendment, Section 6 of the Subscription Agreement shall be amended
to replace “December 7, 2022” with “February 28, 2023”.

 

5.                  
Except as expressly amended hereby, the Subscription Agreement shall not be amended, modified or affected by this Amendment and
Consent, and the Subscription Agreement, and the rights and obligations of the Company and Subscriber thereunder, shall remain in full
force and effect in all respects.

 

     

     

    

 

6.                   In
the event of any conflict between the terms of this Amendment and Consent and the terms of the Subscription Agreement, the terms of
this Amendment and Consent shall prevail. Upon the effectiveness of this Amendment and Consent, each reference in the Subscription
Agreement to “this Agreement,” “hereunder,” “hereof,” “herein,” or words of like
import shall mean and be a reference to the Subscription Agreement as amended hereby, and each reference to the Subscription
Agreement in any other document, instrument or agreement executed or delivered in connection with the Subscription Agreement shall
mean and be a reference to the Subscription Agreement as amended hereby.

 

7.                  
This Amendment and Consent shall be governed by, and construed in accordance with, the laws of the State of Delaware, without regard
to the principles of conflicts of laws that would otherwise require the application of the laws of any other state.

 

8.                  
Any Action based upon, arising out of or related to this Amendment and Consent shall be finally resolved pursuant to Sections 8(p)-(q)
of the Subscription Agreement, which are hereby incorporated by reference and shall apply to this Amendment and Consent as if set forth
herein in their entirety, mutatis mutandis.

 

9.                  
This Amendment and Consent may be executed and delivered in one or more counterparts (including by electronic mail, in .pdf or
other electronic submission) and by different parties in separate counterparts, with the same effect as if all parties hereto had signed
the same document. All counterparts so executed and delivered shall be construed together and shall constitute one and the same agreement.

 

[Signature Page Follows]

 

     

     

    

 

IN WITNESS WHEREOF, the Company and Subscriber
have caused this Amendment and Consent to be duly executed as of the date first written above.

 

	 	AMCI ACQUISITION CORP. II
	 
	 	By:	 
	 	 	Name:
	 	 	Title:
	 

 

	SUBSCRIBER	 
	 	 
	Name of Subscriber:	 
	 	 
	By:	 	 
	 	Name:	 
	 	Title:	 

 

[Signature Page to Amendment and Consent]Exhibit 10.1

 

Execution Version

 

 

APTOSE BIOSCIENCES INC.

 

EQUITY DISTRIBUTION AGREEMENT 

 

December 9, 2022

 

JonesTrading Institutional Services LLC

211 E. 43rd Street

New York, NY 10017

 

Ladies and Gentlemen:

 

As further set forth in this agreement (this “Agreement”),
Aptose Biosciences Inc., a company incorporated under the Canada Business Corporations Act (the “Company”),
proposes to issue and sell from time to time through JonesTrading Institutional Services LLC (the “Agent”),
as sales agent, the Company’s common shares, no par value per share (the “Common Shares”) (such Common
Shares to be sold pursuant to this Agreement, the “Shares”) on terms set forth herein. Notwithstanding anything
to the contrary contained herein, the parties hereto agree that compliance with the limitation set forth in Section 2 of this Agreement
on the number of Shares issued and sold under this Agreement shall be the sole responsibility of the Company, and the Agent shall have
no obligation in connection with such compliance.

 

The Company hereby confirms its agreement with the Agent with respect
to the sale of the Shares.

 

	 	1.	Representations and
    Warranties of the Company. 

 

(a) The Company represents and warrants to, and agrees with, the Agent
that as of the date of this Agreement, each Representation Date, each date on which a Placement Notice (as defined in Section 2(a)(i)
below) is given, and any date on which Shares are sold hereunder as follows:

 

(i) Registration Statement and Prospectus. The Company has filed,
in accordance with the provisions of the Securities Act of 1933, as amended, and the rules and regulations thereunder (collectively, the
“Securities Act”), with the Securities and Exchange Commission (the “Commission”)
a registration statement on Form S-3 (File No. 333-267801), including a base prospectus, relating to certain securities, including the
Common Shares, to be issued from time to time by the Company, and which incorporates by reference documents that the Company has filed
or will file in accordance with the provisions of the Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder
(collectively, the “Exchange Act”). The Company has prepared a prospectus supplement to the base prospectus
included as part of such registration statement specifically relating to the Shares (the “Prospectus Supplement”).
The Company has furnished to the Agent, for use by Agent, copies of the prospectus included as part of such registration statement, as
supplemented by the Prospectus Supplement, relating to the Shares. Except where the context otherwise requires, such registration statement,
as amended when it became effective, including all documents filed as part thereof or incorporated by reference therein, and including
any information contained in a Prospectus (as defined below) subsequently filed with the Commission pursuant to Rule 424(b) under the
Securities Act or deemed to be a part of such registration statement pursuant to Rule 430B or 462(b) (a “Rule 462(b) Registration
Statement”) of the Securities Act, is herein called the “Registration Statement.” The base prospectus,
including all documents incorporated therein by reference, included in the Registration Statement, as it may be supplemented by the Prospectus
Supplement, in the form in which such prospectus and/or Prospectus Supplement have most recently been filed by the Company with the Commission
pursuant to Rule 424(b) under the Securities Act, together with any “issuer free writing prospectus,” as defined in Rule 433
of the Securities Act regulations (“Rule 433”), relating to the Shares, if any, that (i) is required to be filed
with the Commission by the Company or (ii) is exempt from filing pursuant to Rule 433(d)(5)(i), in each case in the form filed or required
to be filed with the Commission or, if not required to be filed, in the form retained in the Company’s records pursuant to Rule
433(g), is herein called the “Prospectus.” Any reference herein to the Registration Statement, the Prospectus
or any amendment or supplement thereto shall be deemed to refer to and include the documents incorporated by reference therein, and any
reference herein to the terms “amend,” “amendment” or “supplement” with respect to the Registration
Statement or the Prospectus shall be deemed to refer to and include the filing after the execution hereof of any document with the Commission
deemed to be incorporated by reference therein. For purposes of this Agreement, all references to the Registration Statement, the Prospectus
or to any amendment or supplement thereto shall be deemed to include any copy filed with the Commission pursuant the Electronic Data Gathering
Analysis and Retrieval System (“EDGAR”).

     

     

    

(ii) Continuing Effectiveness of Registration Statement. The
Registration Statement and any Rule 462(b) Registration Statement have been declared effective by the Commission under the Securities
Act. The Company has complied, to the Commission’s satisfaction, with all requests of the Commission for additional or supplemental
information. No stop order suspending the effectiveness of the Registration Statement or any Rule 462(b) Registration Statement is in
effect and no proceedings for such purpose have been instituted or are pending or, to the knowledge of the Company, contemplated or threatened
by the Commission. The Company meets the requirements for use of Form S-3 under the Securities Act. The sale of the Shares hereunder meets
the requirements of General Instruction I.B.1 of Form S-3. 

 

(iii) No Material Misstatements or Omissions. The Prospectus,
when filed, will comply, and as amended or supplemented, if applicable, will comply in all material respects with the Securities Act.
Each of the Registration Statement, any Rule 462(b) Registration Statement, the Prospectus and any post-effective amendments or supplements
thereto, at the time it becomes effective or its date, as applicable, and as of each Settlement Date (as defined in Section 2(a)(vii)
below), will comply in all material respects with the Securities Act, and as of each effective date and each Settlement Date, did not
and will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary
to make the statements therein not misleading. The Prospectus, as amended or supplemented, when filed, will not and, as of each of the
Settlement Date, will not contain any untrue statement of a material fact or omit to state a material fact necessary in order to make
the statements therein, in the light of the circumstances under which they were made, not misleading. The representations and warranties
set forth in the two immediately preceding sentences do not apply to statements in or omissions from the Registration Statement, any Rule
462(b) Registration Statement, or any post-effective amendment thereto, or the Prospectus, or any amendments or supplements thereto, made
in reliance upon and in conformity with information relating to the Agent furnished to the Company in writing by the Agent expressly for
use therein. There are no contracts or other documents required to be described in the Prospectus or to be filed as exhibits to the Registration
Statement which have not been described or filed as required.

 

(iv) Eligible Issuer. The Company is not an “ineligible
issuer” (as defined in Rule 405 under the Securities Act) as of the eligibility determination date for purposes of Rules 164 and
433 under the Securities Act with respect to the offering of the Shares contemplated by the Registration Statement; the parties hereto
agree and understand that the content of any and all “road shows” (as defined in Rule 433 under the Securities Act) related
to the offering of the Shares contemplated hereby is solely the property of the Company.

 

(v) Financial Statements. The historical financial statements
(including the related notes and supporting schedules) to be included or incorporated by reference, in the Registration Statement, and
the Prospectus comply as to form in all material respects with the requirements of Regulation S-X under the Securities Act (“Regulation
S-X”) and present fairly the financial condition, results of operations and cash flows of the entities purported to be shown
thereby at the dates and for the periods indicated and have been prepared in conformity with generally accepted accounting principles
in the United States applied on a consistent basis throughout the periods involved. There are no financial statements (historical or pro
forma) that are required to be included in the Registration Statement or the Prospectus that are not so included as required. The interactive
data in eXtensible Business Reporting Language (“XBRL”) included or incorporated by reference in the Registration
Statement and the Prospectus fairly present the information called for in all material respects and have been prepared in accordance with
the Commission’s rules and guidelines applicable thereto.

 

(vi) No Off-Balance Sheet Transactions. There are no transactions,
arrangements and other relationships between and/or among the Company, and/or, to the knowledge of the Company, any of its affiliates
and any unconsolidated entity, including, but not limited to, any structural finance, special purpose or limited purpose entity (each,
an “Off-Balance Sheet Transaction”) that could reasonably be expected to affect materially the Company’s
liquidity or the availability of or requirements for its capital resources, including those Off Balance Sheet Transactions described in
the Commission’s Statement about Management’s Discussion and Analysis of Financial Conditions and Results of Operations (Release
Nos. 33-8056; 34-45321; FR-61), and are required to be described in the Prospectus, which have not been described as required.

 

     

     

    

(vii) Auditor Independence. KPMG LLP, who have audited certain
financial statements of the Company, whose report appears in the Registration Statement and the Prospectus, are independent public accountants
as required by the Securities Act and the Public Accounting Oversight Board.

 

(viii) No Material Adverse Effect. The Company and each of its
consolidated subsidiaries (the “Subsidiaries”) (a complete list of the Subsidiaries is included as Schedule
4 hereto) has been duly organized, validly existing as a corporation and in good standing under the laws of their respective jurisdictions
of organization. The Company and each of its Subsidiaries are, and will be, duly licensed or qualified as a foreign corporation for transaction
of business and in good standing under the laws of each other jurisdiction in which their respective ownership or lease of property or
the conduct of their respective businesses requires such license or qualification, and have all corporate power and authority necessary
to own or hold their respective properties and to conduct their respective businesses as described in the Registration Statement and the
Prospectus, except where the failure to be so qualified or in good standing or have such power or authority would not, individually or
in the aggregate, have a material adverse effect or would reasonably be expected to have a material adverse effect on or affecting the
assets, business, operations, earnings, properties, condition (financial or otherwise), prospects, stockholders’ equity or results
of operations of the Company and the Subsidiaries taken as a whole, or prevent or materially interfere with consummation of the transactions
contemplated hereby (a “Material Adverse Effect”). The Company does not own or control, directly or indirectly,
any corporation, association or other entity other than the Subsidiaries listed in Exhibit 21.1 to the Company’s Annual Report on
Form 10-K for the fiscal year ended December 31, 2021, except for Subsidiaries that in the aggregate would not constitute a “significant
subsidiary” (as defined in Rule 405 under the Securities Act). None of the Subsidiaries of the Company is a “significant
subsidiary” (as defined in Rule 405 under the Securities Act).

 

(ix) Capitalization. The Company has an authorized capitalization
as set forth in each of the Registration Statement and the Prospectus, and all of the issued shares of the Company have been duly authorized
and validly issued, are fully paid and non-assessable, conform in all material respects to the description thereof contained in the Registration
Statement and the Prospectus and were not issued in violation of any preemptive right, resale right, right of first refusal or similar
right. All of the Company’s options, warrants and other rights to purchase or exchange any securities for shares of the Company’s
capital stock have been duly authorized and validly issued, and conform in all material respects to the description thereof contained
in the Registration Statement and the Prospectus. All of the issued shares of capital stock or other ownership interest of each Subsidiary
have been duly authorized and validly issued, are fully paid and non-assessable and are owned directly or indirectly by the Company, free
and clear of all liens, encumbrances, equities or claims, except for such liens, encumbrances, equities or claims as would not, individually
or in the aggregate, reasonably be expected to have a Material Adverse Effect.

 

(x) Due Authorization, Valid Issuance and Non-Assessability of Shares.
The Shares to be issued and sold by the Company to the Agent hereunder have been duly authorized, and upon payment and delivery in accordance
with this Agreement, will be validly issued, fully paid and non-assessable, will conform in all material respects to the description thereof
contained in the Registration Statement and the Prospectus, will be issued in compliance with federal and state securities laws and will
be free of statutory and contractual preemptive rights, rights of first refusal and similar rights.

 

(xi) Authority to Enter into this Agreement. The Company has
all requisite corporate power and authority to execute, deliver and perform its obligations under this Agreement. This Agreement has been
duly and validly authorized, executed and delivered by the Company.

 

(xii) Non-Contravention. The issue and sale of the Shares, the
execution, delivery and performance of this Agreement by the Company, the consummation of the transactions contemplated hereby and the
application of the proceeds from the sale of the Shares as described under “Use of Proceeds” in the Registration Statement
and the Prospectus will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, impose any lien,
charge or encumbrance upon any property or assets of the Company and its Subsidiaries, or constitute a default under, any indenture, mortgage,
deed of trust, loan agreement, license, lease or other agreement or instrument to which the Company or any of its Subsidiaries is a party
or by which the Company or any of its Subsidiaries is bound or to which any of the property or assets of the Company or any of its Subsidiaries
is subject; (ii) result in any violation of the provisions of the articles of association, charter or by-laws (or similar organizational
documents) of the Company or any of its Subsidiaries; or (iii) result in any violation of any statute or any judgment, order, decree,
rule or regulation of any court or governmental agency or body having jurisdiction over the Company or any of its Subsidiaries or any
of their properties or assets, except, with respect to clauses (i) and (iii), for such conflicts, breaches, violations, liens, charges,
encumbrances or defaults that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. The
issuance and sale of the Shares hereunder does not contravene the rules and regulations of the Exchange or the Toronto Stock Exchange
(the “TSX”).

     

     

    

(xiii) No Consent or Approval Required. No consent, approval,
authorization or order of, or filing, registration or qualification with, any court or governmental agency or body having jurisdiction
over the Company or any of its Subsidiaries or any of their properties or assets is required for the issue and sale of the Shares, the
execution, delivery and performance of this Agreement by the Company, the consummation of the transactions contemplated hereby, the application
of the proceeds from the sale of the Shares as described under “Use of Proceeds” in the Registration Statement and the Prospectus,
except for (i) the registration of the Shares under the Securities Act; (ii) such consents, approvals, authorizations, orders, filings,
registrations or qualifications as may be required under the Exchange Act, and applicable state or foreign securities laws and/or the
bylaws and rules of the Financial Industry Regulatory Authority (the “FINRA”) and/or the TSX in connection with
the sale of the Shares by the Agent; and (iii) the inclusion of the Shares on the Nasdaq Capital Market (the “Exchange”).

 

(xiv) Internal Accounting Controls. The Company and each of
its Subsidiaries maintain internal accounting controls designed to provide reasonable assurances regarding the reliability of financial
reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles
in the United States, including, but not limited to, internal accounting controls sufficient to provide reasonable assurance that (i)
transactions are executed in accordance with management’s general or specific authorization, (ii) transactions are recorded as necessary
to permit preparation of the Company’s financial statements in conformity with generally accepted accounting principles in the United
States and to maintain accountability for its assets, (iii) access to the Company’s assets is permitted only in accordance with
management’s general or specific authorization, (iv) the recorded accountability for the Company’s assets is compared with
existing assets at reasonable intervals and appropriate action is taken with respect to any differences, and (v) the interactive data
in XBRL included or incorporated by reference in the Registration Statement and the Prospectus fairly present the information called for
in all material respects and are prepared in accordance with the Commission’s rules and guidelines applicable thereto. Except as
disclosed in the Registration Statement or the Prospectus, as of the date of the most recent balance sheet of the Company and its consolidated
Subsidiaries audited by KPMG LLP, there were no material weaknesses in the Company’s internal controls.

 

(xv) Disclosure Controls. The Company and each of its Subsidiaries
maintain disclosure controls and procedures (as such term is defined in Rule 13a-15(e) under the Exchange Act) designed to ensure that
the information required to be disclosed by the Company and its Subsidiaries in the reports they file or submit under the Exchange Act
is accumulated and communicated to management of the Company and its Subsidiaries, including their respective principal executive officers
and principal financial officers, as appropriate, to allow timely decisions regarding required disclosure to be made, and as of September
30, 2022, such disclosure controls and procedures are effective in all material respects to perform the functions for which they were
established.

 

(xvi) Critical Accounting Policies. The section entitled “Critical
Accounting Policies” incorporated by reference in the Registration Statement and the Prospectus accurately describes in all material
respects (i) the accounting policies that the Company believes are the most important in the portrayal of the Company’s financial
condition and results of operations and that require management’s most difficult, subjective or complex judgments (“Critical
Accounting Policies”); (ii) the judgments and uncertainties affecting the application of Critical Accounting Policies; and
(iii) the likelihood that materially different amounts would be reported under different conditions or using different assumptions, and
an explanation thereof.

 

(xvii) Sarbanes-Oxley Compliance. There is and has been no failure
on the part of the Company or, to the knowledge of the Company, any of the Company’s directors or officers, in their capacities
as such, to comply with any provision of the Sarbanes-Oxley Act of 2002 and the rules and regulations promulgated in connection therewith
that are applicable to the Company or its directors or officers in their capacities as directors or officers of the Company.

     

     

    

(xviii) Exceptions. Except as would not, in the aggregate, reasonably
be expected to have a Material Adverse Effect, since the date of the latest audited financial statements included in the Registration
Statement and the Prospectus, and, except as disclosed in the Registration Statement and the Prospectus, neither the Company nor any of
its Subsidiaries has (i) sustained any loss or interference with its business from fire, explosion, flood or other calamity, whether or
not covered by insurance, or from any labor dispute or court or governmental action, order or decree, (ii) issued or granted any securities
(other than pursuant to employee benefit plans, qualified stock option plans or other equity compensation plans or arrangements existing
on the date hereof and disclosed in the Registration Statement and the Prospectus (the “Specified Equity Plans”)),
(iii) incurred any material liability or obligation, direct or contingent, other than liabilities and obligations that were incurred in
the ordinary course of business, (iv) entered into any material transaction not in the ordinary course of business, or (v) declared or
paid any dividend on its share capital; and since such date, except as disclosed in the Registration Statement and the Prospectus, there
has not been any change in the share capital, long-term debt, net current assets or short-term debt of the Company or any of its Subsidiaries
or any adverse change, or any development involving a prospective adverse change, in or affecting the condition (financial or otherwise),
results of operations, shareholders’ equity, properties, management, business or prospects of the Company and its Subsidiaries taken
as a whole.

 

(xix) Valid Title. The Company and each of its Subsidiaries
have good and marketable title in fee simple to all real property and good and marketable title to all personal property owned by them,
that are material to the business of the Company, in each case free and clear of all liens, encumbrances and defects, except such liens,
encumbrances and defects as do not materially affect the value of such property and do not materially interfere with the use made and
proposed to be made of such property by the Company and its Subsidiaries. All assets held under lease by the Company and its Subsidiaries,
that are material to the business of the Company, are held by them under valid, subsisting and enforceable leases, with such exceptions
as do not materially interfere with the use made and proposed to be made of such assets by the Company and its Subsidiaries.

 

(xx) Intellectual Property. The Company and each of its Subsidiaries
owns, possesses or has valid and enforceable licenses to use, or can acquire on reasonable terms, all Intellectual Property (as defined
below) necessary for the conduct of the Company’s and it Subsidiaries’ business as now conducted or as described in the Registration
Statement and the Prospectus to be conducted, except as such failure to own, possess, or acquire such rights would not reasonably be expected
to, individually or in the aggregate, result in a Material Adverse Effect. Furthermore, (A) to the knowledge of the Company, there is
no infringement, misappropriation or violation by third parties of any such Intellectual Property, the effect of which would have a Material
Adverse Effect; (B) there is no pending or, to the knowledge of the Company, threatened, action, suit, proceeding or claim by others challenging
the Company’s or any of its Subsidiaries’ rights in or to any such Intellectual Property, the effect of which would have a
Material Adverse Effect; (C) the Intellectual Property owned by the Company and its Subsidiaries, and to the knowledge of the Company,
the Intellectual Property licensed to the Company and its Subsidiaries, has not been adjudged invalid or unenforceable, in whole or in
part, and there is no pending or, to the knowledge of the Company, threatened action, suit, proceeding or claim by others challenging
the validity or scope of any such Intellectual Property, the effect of which would have a Material Adverse Effect; (D) there is no pending
or, to the knowledge of the Company, threatened action, suit, proceeding or claim by others that the Company or any of its Subsidiaries
infringes, misappropriates or otherwise violates any Intellectual Property or other proprietary rights of others, and neither the Company
or any of its Subsidiaries has received any written notice of such claim, the effect of which would have a Material Adverse Effect; and
(E) to the Company’s knowledge, no employee of the Company or any of its Subsidiaries is in or has ever been in violation of any
term of any employment contract, patent disclosure agreement, invention assignment agreement, non-competition agreement, non-solicitation
agreement, nondisclosure agreement or any restrictive covenant to or with a former employer where the basis of such violation relates
to such employee’s employment with the Company or any of its Subsidiaries or actions undertaken by the employee while employed with
the Company or any of its Subsidiaries, the effect of which would have a Material Adverse Effect. “Intellectual Property”
shall mean all patents, patent applications, trade and service marks, trade and service mark registrations, trade names, copyrights, licenses,
inventions, trade secrets, domain names, technology, know-how and other intellectual property.

 

     

     

    

(xxi) Consents and Permits. Except as set forth in the Registration
Statement and the Prospectus, the Company and each of its Subsidiaries have such permits, licenses, patents, franchises, certificates
of need and other approvals consents and other authorizations (the “Regulatory Permits”) issued by the appropriate
domestic or foreign regional, federal, state, or local regulatory agencies or bodies necessary to conduct the business of the Company,
including, without limitation, any Investigational New Drug Application (an “IND”) and/or New Drug Application
(an “NDA”), as required by the U.S. Food and Drug Administration (the “FDA”), any
authorizations issued by the Drug Enforcement Administration (the “DEA”), or any other authorizations issued
by domestic or foreign regional, federal, state, or local agencies or bodies engaged in the regulation of pharmaceuticals such as those
being developed by the Company and its Subsidiaries, except for any of the foregoing that would not reasonably be expected to, individually
or in the aggregate, have a Material Adverse Effect; the Company (i) is in compliance in all material respects with the requirements of
the Regulatory Permits, and (ii) all of the Regulatory Permits are valid and in full force and effect, in each case, except for any of
the foregoing that would not reasonably be expected to, individually or in the aggregate, have a Material Adverse Effect; the Company
has not received any written notice of proceedings relating to the revocation, termination, modification or impairment of rights of any
of the Regulatory Permits that, individually or in the aggregate, if the subject of an unfavorable decision, ruling or finding, would
reasonably be expected to result in a Material Adverse Effect; the Company has not failed to submit to the FDA any IND or NDA necessary
to conduct the business of the Company, any such filings that were required to be made were in material compliance with applicable laws
when filed, and no material deficiencies have been asserted by the FDA with respect to any such filings or submissions that were made.

 

(xxii) Compliance with Applicable Laws and Regulations. Except
as described in the Registration Statement and the Prospectus, as applicable, the Company and its Subsidiaries (i) are and at all times
have been in compliance with all statutes, rules and regulations applicable to the ownership, testing, development, manufacture, packaging,
processing, use, distribution, marketing, advertising, labeling, promotion, sale, offer for sale, storage, import, export or disposal
of any product manufactured or distributed by the Issuer including, without limitation the Federal Food, Drug and Cosmetic Act (21 U.S.C.
§301 et seq.), the federal Anti-Kickback Statute (42 U.S.C. §1320a-7b(b)), the Health Insurance Portability and Accountability
Act of 1996, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, and the Patient Protection
and Affordable Care Act of 2010, as amended by the Health Care and Education Affordability Reconciliation Act of 2010, the regulations
promulgated pursuant to such laws, and any successor government programs and comparable state laws, regulations relating to Good Clinical
Practices and Good Laboratory Practices and all other local, state, federal, national, supranational and foreign laws, manual provisions,
policies and administrative guidance relating to the regulation of the Company (collectively, the “Applicable Laws”);
(ii) have not received any notice from any court or arbitrator or governmental or regulatory authority or third party alleging or asserting
noncompliance with any Applicable Laws or any licenses, exemptions, certificates, approvals, clearances, authorizations, permits, registrations
and supplements or amendments thereto required by any such Applicable Laws (“Authorizations”); (iii) possess
all Authorizations and such Authorizations are valid and in full force and effect and are not in violation of any term of any such Authorizations;
(iv) have not received written notice of any claim, action, suit, proceeding, hearing, enforcement, investigation arbitration or other
action from any court or arbitrator or governmental or regulatory authority or third party alleging that any product operation or activity
is in violation of any Applicable Laws or Authorizations nor is any such claim, action, suit, proceeding, hearing, enforcement, investigation,
arbitration or other action threatened; (v) have received any written notice that any court or arbitrator or governmental or regulatory
authority has taken, is taking or intends to take, action to limit, suspend, materially modify or revoke any Authorizations nor is any
such limitation, suspension, modification or revocation threatened; (vi) have filed, obtained, maintained or submitted all material reports,
documents, forms, notices, applications, records, claims, submissions and supplements or amendments as required by any Applicable Laws
or Authorizations and that all such reports, documents, forms, notices, applications, records, claims, submissions and supplements or
amendments were complete and accurate on the date filed (or were corrected or supplemented by a subsequent submission); and (vii) are
not a party to any corporate integrity agreements, monitoring agreements, consent decrees, settlement orders, or similar agreements with
or imposed by any governmental or regulatory authority.

 

(xxiii) Clinical Trials. The clinical and pre-clinical trials
conducted by or on behalf of or sponsored by the Company, or in which the Company has participated, that are described in the Prospectus
or the results of which are referred to in the Registration Statement and the Prospectus, as applicable, and are intended to be submitted
to Regulatory Authorities as a basis for product approval, were and, if still pending, are being conducted in accordance with standard
medical and scientific research procedures and all applicable statutes, rules and regulations of the FDA and comparable drug regulatory
agencies outside of the United States to which it is subject (collectively, the “Regulatory Authorities”), including,
without limitation, 21 C.F.R. Parts 50, 54, 56, 58, and 312, and current Good Clinical Practices and Good Laboratory Practices; the descriptions
in the Registration Statement or the Prospectus of the results of such studies and trials are accurate and complete and fairly present
the data derived from such trials; the Company has no knowledge of any other trials the results of which are inconsistent with or otherwise
call into question the results described or referred to in the Registration Statement and the Prospectus; the Company and its Subsidiaries
have each operated and are currently in compliance with all applicable statutes, rules and regulations of the Regulatory Authorities;
neither the Company, nor any of its Subsidiaries, has not received any written notices, correspondence or other communication from the
Regulatory Authorities or any governmental authority which could lead to the termination or suspension of any clinical or pre-clinical
trials that are described in the Prospectus or the results of which are referred to in the Prospectus, and there are no reasonable grounds
for same.

     

     

    

(xxiv) Regulatory Filings. Except as disclosed in the Registration
Statement and the Prospectus, neither the Company nor any of its Subsidiaries has failed to file with the applicable regulatory authorities
(including, without limitation, the FDA, or any foreign, federal, state, provincial or local governmental or regulatory authority performing
functions similar to those performed by the FDA) any required filing, declaration, listing, registration, report or submission, except
for such failures that, individually or in the aggregate, would not reasonably be expected to have a Material Adverse Effect; except as
disclosed in the Registration Statement and the Prospectus, all such filings, declarations, listings, registrations, reports or submissions
were in compliance with applicable laws when filed and no deficiencies have been asserted by any applicable regulatory authority with
respect to any such filings, declarations, listings, registrations, reports or submissions, except for any deficiencies that, individually
or in the aggregate, would not reasonably be expected to have a Material Adverse Effect. The Company has operated and currently is in
compliance with the United States Federal Food, Drug, and Cosmetic Act, all applicable rules and regulations of the FDA and other federal,
state, local and foreign governmental bodies exercising comparable authority, except where the failure to be so in compliance would not
reasonably be expected to have a Material Adverse Effect. The Company has no knowledge of any studies, tests or trials not described in
the Prospectus the results of which reasonably call into question in any material respect the results of the studies, tests and trials
described in the Prospectus.

 

(xxv) Clinical Studies. The studies, tests and preclinical and
clinical investigations conducted by or on behalf of the Company and its Subsidiaries were and, if still pending, are, in all material
respects, being conducted in accordance with established protocols, procedures and controls pursuant to accepted professional scientific
standards and all Applicable Laws and Authorizations, including, without limitation, the Federal Food, Drug, and Cosmetic Act and implementing
regulations including good laboratory practice (“GLP”) regulations (21 C.F.R. Part 58) if any such studies,
tests or preclinical and clinical investigations are being conducted pursuant to GLP, and good clinical practice and IND requirements
(21 C.F.R. Parts 50, 54, 56, and 312) if any such studies, tests or preclinical and clinical investigations were or are subject to good
clinical practice regulations or were or are being conducted under an IND; the descriptions of the results of such studies, tests and
trials contained in the Registration Statement and the Prospectus are accurate in all material respects and fairly present the data derived
from such studies, tests and trials; except to the extent disclosed in the Registration Statement and the Prospectus, the Company is not
aware of any studies, tests or trials the results of which the Company believes reasonably call into question the study, test, or trial
results described or referred to in the Registration Statement and the Prospectus when viewed in the context in which such results are
described and the clinical state of development; and neither the Company nor any of its Subsidiaries have received any notices or correspondence
from any governmental authority requiring the termination, suspension or material modification of any studies, tests or preclinical or
clinical investigations conducted by or on behalf of the Company or any of its Subsidiaries.

 

(xxvi) Absence of Settlement Agreements or Undertakings. Except
as disclosed in the Registration Statement and the Prospectus, the Company is not a party to any corporate integrity agreements, monitoring
agreements, consent decrees, settlement orders, or similar agreements with or imposed by any governmental authority.

 

(xxvii) Absence of Legal or Governmental Proceedings. Except
as disclosed in the Registration Statement and the Prospectus, there are no legal or governmental proceedings pending to which the Company
or any of its Subsidiaries is a party or of which any property or assets of the Company or any of its Subsidiaries is the subject that,
if determined adversely to the Company, would, in the aggregate, reasonably be expected to have a Material Adverse Effect or would, in
the aggregate, reasonably be expected to have a Material Adverse Effect on the performance of this Agreement or the consummation of the
transactions contemplated hereby; and to the Company’s knowledge, no such proceedings are threatened or contemplated by governmental
authorities or others.

     

     

    

(xxviii) Material Contracts. There are no contracts or other
documents required to be described in the Registration Statement or filed as exhibits to the Registration Statement that are not described
and filed as required. The statements made in the Registration Statement and Prospectus, insofar as they purport to constitute summaries
of the terms of the contracts and other documents described and filed, constitute accurate summaries of the terms of such contracts and
documents in all material respects. Except as disclosed in the Registration Statement and the Prospectus, neither the Company nor any
of its Subsidiaries has knowledge that any other party to any such contract or other document has any intention not to render full performance
as contemplated by the terms thereof.

 

(xxix) Insurance. The Company and each of its Subsidiaries maintain
insurance from nationally recognized, in the applicable country, insurers in such amounts and covering such risks as is commercially reasonable
in accordance with customary practices for companies engaged in similar businesses and similar industries for the conduct of their respective
businesses and the value of their respective properties and as is customary for companies engaged in similar businesses in similar industries.
All policies of insurance of the Company and its Subsidiaries are in full force and effect; the Company and each of its Subsidiaries are
in compliance with the terms of such policies in all material respects; and neither the Company nor any of its Subsidiaries has received
notice from any insurer or agent of such insurer that capital improvements or other expenditures are required or necessary to be made
in order to continue such insurance; there are no material claims by the Company or any of its Subsidiaries under any such policy or instrument
as to which any insurance company is denying liability or defending under a reservation of rights clause; and neither the Company nor
any such Subsidiary has any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage
expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not reasonably
be expected to have a Material Adverse Effect.

 

(xxx) Related Party Disclosure. No relationship, direct or indirect,
exists between or among the Company, on the one hand, and the directors, officers, shareholders, customers or suppliers of the Company,
on the other hand, that is required to be described in the Registration Statement or the Prospectus which is not so described.

 

(xxxi) No Labor Dispute. No labor disturbance by or dispute
with the employees of the Company or any of its Subsidiaries exists or, to the knowledge of the Company, is imminent that could reasonably
be expected to have a Material Adverse Effect.

 

(xxxii) No Default. Except as disclosed in the Registration
Statement and the Prospectus, neither the Company nor any of its Subsidiaries (i) is in violation of its articles of association, charter
or by-laws (or similar organizational documents), (ii) is in default, and no event has occurred that, with notice or lapse of time or
both, would constitute such a default, in the due performance or observance of any term, covenant, condition or other obligation contained
in any indenture, mortgage, deed of trust, loan agreement, license or other agreement or instrument to which it is a party or by which
it is bound or to which any of its properties or assets is subject, or (iii) is in violation of any statute or any order, rule or regulation
of any court or governmental agency or body having jurisdiction over it or its property or assets or has failed to obtain any license,
permit, certificate, franchise or other governmental authorization or permit necessary to the ownership of its property or to the conduct
of its business, except in the case of clauses (ii) and (iii), to the extent any such conflict, breach, violation or default would not,
individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

 

(xxxiii) Environmental Laws. Except as set forth in the Registration
Statement or the Prospectus, the Company and its Subsidiaries (i) are in compliance with any and all applicable federal, state, local
and foreign laws, rules, regulations, decisions and orders relating to the protection of human health and safety, the environment or hazardous
or toxic substances or wastes, pollutants or contaminants (collectively, “Environmental Laws”); (ii) have received
and are in compliance with all permits, licenses or other approvals required of them under applicable Environmental Laws to conduct their
respective businesses as described in the Registration Statement and the Prospectus; and (iii) have not received notice of any actual
or potential liability for the investigation or remediation of any disposal or release of hazardous or toxic substances or wastes, pollutants
or contaminants, except, in the case of any of clauses (i), (ii) or (iii) above, for any such failure to comply or failure to receive
required permits, licenses, other approvals or liability as would not reasonably be expected to, individually or in the aggregate, have
a Material Adverse Effect.

     

     

    

(xxxiv) Taxes. The Company and each of its Subsidiaries have
filed all federal, state, local and foreign tax returns required to be filed through the date hereof, subject to permitted extensions,
and have paid all taxes due, and no tax deficiency has been determined adversely to the Company or any of its Subsidiaries, nor does the
Company have any knowledge of any tax deficiencies that have been, or would reasonably be expected to be asserted against the Company,
that would, in the aggregate, reasonably be expected to have a Material Adverse Effect.

 

(xxxv) ERISA Compliance. (i) Each “employee benefit plan”
(within the meaning of Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”))
for which the Company or any member of its “Controlled Group” (defined as any organization which is a member of a controlled
group of corporations within the meaning of Section 414 of the Internal Revenue Code of 1986, as amended (the “Code”))
would have any liability (each a “Plan”) has been maintained in compliance in all material respects with its
terms and with the requirements of all applicable statutes, rules and regulations including ERISA and the Code; (ii) no prohibited transaction,
within the meaning of Section 406 of ERISA or Section 4975 of the Code, has occurred with respect to any Plan excluding transactions effected
pursuant to a statutory or administrative exemption; (iii) with respect to each Plan subject to Title IV of ERISA (A) no “reportable
event” (within the meaning of Section 4043(c) of ERISA) has occurred or is reasonably expected to occur that would result in a material
loss to the Company, (B) no “accumulated funding deficiency” (within the meaning of Section 302 of ERISA or Section 412 of
the Code), whether or not waived, has occurred or is reasonably expected to occur, (C) the fair market value of the assets under each
Plan that is required to be funded exceeds the present value of all benefits accrued under such Plan (determined based on those assumptions
used to fund such Plan), and (D) neither the Company or any member of its Controlled Group has incurred, or reasonably expects to incur,
any liability under Title IV of ERISA (other than contributions to the Plan or premiums to the Pension Benefit Guaranty Corporation in
the ordinary course and without default) in respect of a Plan (including a “multiemployer plan”, within the meaning of Section
4001(c)(3) of ERISA); and (iv) each Plan that is intended to be qualified under Section 401(a) of the Code is so qualified and nothing
has occurred, to the Company’s knowledge, whether by action or by failure to act, which would cause the loss of such qualification.

 

(xxxvi) Accuracy of Statistical and Market Data. The statistical
and market-related data included in the Registration Statement and the Prospectus and the consolidated financial statements of the Company
and its Subsidiaries included or incorporated by reference in the Registration Statement and the Prospectus are based on or derived from
sources that the Company believes to be reliable in all material respects.

 

(xxxvii) Not an Investment Company. Neither the Company nor
any of its Subsidiaries is, and as of the applicable Settlement Date and, after giving effect to the offer and sale of the Shares and
the application of the proceeds therefrom as described under “Use of Proceeds” in the Registration Statement and the Prospectus,
none of them will be, (i) an “investment company” or a company “controlled” by an “investment company”
within the meaning of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the
rules and regulations of the Commission thereunder, or (ii) a “business development company” (as defined in Section 2(a)(48)
of the Investment Company Act).

 

(xxxviii) Accuracy of Certain Summaries and Statements. The
statements set forth or incorporated by reference, as applicable, in each of the Registration Statement and the Prospectus under the captions
“Description of Share Capital,” and in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021
under the captions “Legal Proceedings” and “Certain Relationships and Related Transactions, and Director Independence”,
insofar as they purport to summarize the provisions of the laws and documents referred to therein, are accurate summaries in all material
respects.

 

(xxxix) Registration Rights. Except as disclosed in the Registration
Statement and the Prospectus, there are no contracts, agreements or understandings between the Company and any person granting such person
the right to require the Company to file a registration statement under the Securities Act with respect to any securities of the Company
owned or to be owned by such person. There are no contracts, agreements or understandings to require the Company to include any such securities
in the securities proposed to be offered pursuant to this Agreement.

     

     

    

(xl) No Other Brokers. Neither the Company nor any of its Subsidiaries
is a party to any contract, agreement or understanding with any person (other than this Agreement) that would give rise to a valid claim
against any of them or the Agent for a brokerage commission, finder’s fee or like payment in connection with the offering and sale
of the Shares.

(xli) No Integration. The Company has not sold or issued any
securities that would be integrated with the offering of the Shares contemplated by this Agreement pursuant to the Securities Act or the
interpretations thereof by the Commission.

 

(xlii) Absence of Stabilization or Manipulation. The Company
and its affiliates have not taken, directly or indirectly, any action designed to or that has constituted or that could reasonably be
expected to cause or result in the stabilization or manipulation of the price of any security of the Company in connection with the offering
of the Shares.

 

(xliii) Exchange Act Registration and Listing of the Common Shares.
The Common Shares are registered pursuant to Section 12(b) of the Exchange Act and listed on the Exchange; the Company has taken no action
designed to, or reasonably likely to have the effect of, terminating the registration of the Common Shares under the Exchange Act or delisting
the Common Shares from the Exchange, and except as disclosed nor has the Company received any notification that the Commission or FINRA
is contemplating terminating such registration or listing. The Common Shares are currently listed on (i) the Exchange under the trading
symbol “APTO” and (ii) the TSX under the trading symbol “APS”. Except as described in the Registration Statement
and the Prospectus, the Company has not, in the twelve (12) months preceding the date hereof, received any notice from any Person to the
effect that the Company is not in compliance with the rules and regulations of the Exchange or the TSX. Except as described in the Registration
Statement and the Prospectus, the Company is, and has no reason to believe that it will not in the foreseeable future continue to be,
in material compliance with the rules and regulations of the Exchange and the TSX.

 

(xliv) Offering Material. The Company has not distributed and
prior to any Settlement Date, will not distribute any offering material in connection with any Placement (as defined in Section 2(a)(i)
below), other than the Prospectus, and any Permitted Free Writing Prospectus to which the Agent has consented.

 

(xlv) Compliance with Labor Laws. Neither the Company nor any
Subsidiary is in violation of or has received notice of any violation with respect to any federal or state law relating to discrimination
in the hiring, promotion or pay of employees, nor any applicable federal or state wage and hour laws, nor any state law precluding the
denial of credit due to the neighborhood in which a property is situated, the violation of any of which could reasonably be expected to
have a Material Adverse Effect.

 

(xlvi) No Unlawful Payments. Neither the Company nor any of
its Subsidiaries, nor, to the knowledge of the Company, any director, officer, agent, employee or other person associated with or acting
on behalf of the Company or any of its Subsidiaries, has (i) used any corporate funds for any unlawful contribution, gift, entertainment
or other unlawful expense relating to political activity; (ii) made any direct or indirect unlawful payment to any foreign or domestic
government official or employee from corporate funds; (iii) violated or is in violation of any provision of the U.S. Foreign Corrupt Practices
Act of 1977, the Organization for Economic Co-operation and Development Convention on Bribery of Foreign Public Officials in International
Business Transactions, and the rules and regulations thereunder and any other similar foreign or domestic law or regulation; or (iv) made
any bribe, rebate, payoff, influence payment, kickback or other unlawful payment. The Company has instituted and maintains policies and
procedures designed to ensure continued compliance with the laws and regulations referenced in clause (iii) of this paragraph.

 

(xlvii) Anti-Money Laundering Compliance. The operations of
the Company and its Subsidiaries are and have been conducted at all times in compliance with applicable financial recordkeeping and reporting
requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the money laundering statutes of all applicable
jurisdictions, the rules and regulations thereunder and any applicable related or similar rules, regulations or guidelines, issued, administered
or enforced by any governmental agency (collectively, the “Money Laundering Laws”) and no action, suit or proceeding
by or before any court or governmental agency, authority or body or any arbitrator involving the Company or any of its Subsidiaries with
respect to the Money Laundering Laws is pending or, to the knowledge of the Company, threatened.

     

     

    

(xlviii) OFAC Compliance. Neither the Company nor any of its
Subsidiaries nor, to the knowledge of the Company, any director, officer, agent, employee or affiliate of the Company or any of its Subsidiaries
is currently subject to any U.S. sanctions administered by the Office of Foreign Assets Control of the U.S. Treasury Department (“OFAC”);
and the Company will not directly or indirectly use the proceeds of the offering, or lend, contribute or otherwise make available such
proceeds to any Subsidiary, joint venture partner or other person or entity, for the purpose of financing the activities of any person
currently subject to any U.S. sanctions administered by OFAC.

 

(xlix) Passive Foreign Investment Company. Subject to the qualifications
and assumptions set forth in the Registration Statement, the Company believes that as of its most recently completed year-end it is, and
as of the end of each year-end during which sales of the Shares contemplated by this Agreement occur the Company expects to be, a “passive
foreign investment company” (as defined in Section 1297 of the Code, and the regulations promulgated thereunder)

 

(l) No Taxes or Fees Due Upon Issuance. No stamp, issue, registration,
documentary, transfer or other similar taxes and duties, including interest and penalties, are payable on or in connection with the issuance
and sale of the Shares by the Company or the execution and delivery of this Agreement.

 

(li) No Immunity. Neither the Company nor any Subsidiary, nor
any of their respective properties or assets, has any immunity from the jurisdiction of any court or from any legal process (whether through
service or notice, attachment to prior judgment, attachment in aid of execution or otherwise) under the laws of any jurisdiction in which
it is organized, headquartered or doing business.

 

(lii) No Legal, Accounting or Tax Advice. The Company has not
relied upon the Agent or legal counsel for the Agent for any legal, tax or accounting advice in connection with the offering and sale
of the Shares.

 

(liii) Certificate as Representation and Warranty. Any certificate
signed by any officer of the Company and delivered to the Agent or the Agent’s counsel in connection with the offering of the Shares
shall be deemed a representation and warranty by the Company to the Agent as to the matters covered thereby.

 

	 	2.	Purchase, Sale and Delivery of Shares. 

 

(a) At-the-Market Sales. On the basis of the representations,
warranties and agreements herein contained, but subject to the terms and conditions herein set forth, the Company agrees to issue and
sell through the Agent as sales agent, and the Agent agrees to use its commercially reasonable efforts to sell for and on behalf of the
Company, the Shares on the following terms and conditions; provided, however, that any obligation of the Agent to use such
commercially reasonable efforts shall be subject to the continuing accuracy of the representations and warranties of the Company herein,
the performance by the Company of its covenants and obligations hereunder and the continuing satisfaction of the additional conditions
specified in Section 4 of this Agreement. The Company acknowledges and agrees that (i) there can be no assurance that the Agent will be
successful in selling Shares, and (ii) the Agent will incur no liability or obligation to the Company or any other person or entity if
it does not sell Shares for any reason other than a failure by the Agent to use its commercially reasonable efforts consistent with its
normal trading and sales practices to sell such Shares as required under this Section 2.

 

(i) Each time that the Company wishes to issue and sell the Shares
hereunder (each, a “Placement”), it will notify the Agent by email notice (or other method mutually agreed to
in writing by the parties) (a “Placement Notice”) containing the parameters in accordance with which it desires
the Shares to be sold, which shall at a minimum include the number of Shares to be issued, the time period during which sales are requested
to be made, any limitation on the number of Shares that may be sold in any one Trading Day (as defined below) and any minimum price below
which sales may not be made, a form of which containing such minimum sales parameters necessary is attached hereto as Schedule 1.
The Placement Notice shall originate from any of the individuals from the Company set forth on Schedule 2 (with a copy to each
of the other individuals from the Company listed on such schedule), and shall be addressed to each of the individuals from the Agent set
forth on Schedule 2, as such Schedule 2 may be amended from time to time. The Placement Notice shall be effective upon receipt
by the Agent unless and until (i) in accordance with the notice requirements set forth in Section 2(a)(iii) of this Agreement, the Agent
declines to accept the terms contained therein for any reason, in its sole discretion, (ii) the entire amount of the Shares have been
sold, (iii) the Company suspends or terminates the Placement Notice in accordance with the notice requirements set forth in Section 2(a)(iii)
below, (iv) the Company issues a subsequent Placement Notice with parameters superseding those on the earlier dated Placement Notice,
or (v) this Agreement has been terminated under the provisions of Section 7. The amount of any commission or other compensation to be
paid by the Company to the Agent in connection with the sale of the Shares shall be calculated in accordance with the terms set forth
in Section 2(a)(v) below. It is expressly acknowledged and agreed that neither the Company nor the Agent will have any obligation whatsoever
with respect to a Placement or any Shares unless and until the Company delivers a Placement Notice to the Agent and the Agent does not
decline such Placement Notice pursuant to the terms set forth above, and then only upon the terms specified therein and herein. In the
event of a conflict between the terms of this Agreement and the terms of the Placement Notice, the terms of the Placement Notice will
control. For the purposes hereof, “Trading Day” means any day on which the Company’s Common Shares is
purchased and sold on the principal market on which the Common Shares is listed or quoted.

     

     

    

(ii) The Shares are to be sold by the Agent on a daily basis or otherwise
as shall be agreed to by the Company and the Agent on any day that is a trading day for the Exchange (other than a day on which the Exchange
is scheduled to close prior to its regular weekday closing time). The gross sales price of the Shares sold under this Section 2(a) shall
be the market price for the Company’s Common Shares sold by the Agent under this Section 2(a) at the time of such sale.

 

(iii) Notwithstanding the foregoing, the Company may instruct the Agent
by telephone (confirmed promptly by email) not to sell the Shares if such sales cannot be effected at or above the price designated by
the Company in any such instruction. Furthermore, the Company shall not authorize the issuance and sale of, and the Agent shall not be
obligated to use its commercially reasonable efforts to sell, any Share at a price lower than the minimum price therefor designated from
time to time by the Company’s Board of Directors and notified to the Agent in writing. In addition, the Company or the Agent may,
upon notice to the other party hereto by telephone (confirmed promptly by email), suspend the offering of the Shares, whereupon the Agent
shall so suspend the offering of Shares until further notice is provided to the other party to the contrary; provided, however,
that such suspension or termination shall not affect or impair the parties’ respective obligations with respect to the Shares sold
hereunder prior to the giving of such notice. Notwithstanding any other provision of this Agreement, during any period in which the Company
is in possession of material non-public information, the Company and the Agent agree that (i) no sale of Shares will take place, (ii)
the Company shall not request the sale of any Shares, and (iii) the Agent shall not be obligated to sell or offer to sell any Shares.

 

(iv) Subject to the terms of the Placement Notice, the Agent may sell
the Shares by any method permitted by law deemed to be an “at the market offering” as defined in Rule 415(a)(4) under the
Securities Act, including sales made directly on or through the Exchange. Subject to the terms of any Placement Notice, the Agent may
also sell Shares in negotiated transactions at market prices prevailing at the time of sale or at prices related to such prevailing market
prices and/or any other method permitted by law, subject to the prior written consent of the Company.

 

(v) The compensation to the Agent for sales of the Shares, as an agent
of the Company, shall be up to 3.0% of the gross sales price of the Shares sold by the Agent pursuant to this Section 2(a), payable in
cash (the “Commission”); provided that the combined Commission and reimbursement of the Agent for the
out-of-pocket reasonable fees and disbursements of Agent’s counsel pursuant to Section 3(g), shall not exceed 8.0% of the gross
sales price of the Shares. The remaining proceeds, after further deduction for any transaction fees imposed by any governmental or self-regulatory
organization in respect of such sales, and reimbursement of expenses that the Agent may be entitled to pursuant to Section 3(g), shall
constitute the net proceeds to the Company for such Shares (the “Net Proceeds”).

 

(vi) The Agent will provide written confirmation to the Company (including
by email correspondence to each of the individuals of the Company set forth on Schedule 2), no later than the opening of the Trading
Day immediately following the Trading Day on which it has made sales of Shares hereunder, setting forth the number of Shares sold on such
day, the volume-weighted average price of the Shares sold, and the Net Proceeds payable to the Company.

 

(vii) All Shares sold pursuant to this Section 2(a) will be delivered
by the Company to the Agent for the account of the Agent, against payment of the Net Proceeds therefor, by wire transfer of same-day funds
payable to the order of the Company at the offices of (i) JonesTrading Institutional Services LLC, 211 E. 43rd Street, New York, NY 10017
or (ii) or such other location as may be mutually acceptable, at 9:00 a.m. Eastern Time on the second full business day following the
date on which such Shares are sold, or at such other time and date as the Agent and the Company determine pursuant to Rule 15c6-1(a) under
the Exchange Act, each such time and date of delivery being herein referred to as a “Settlement Date.” If the
Agent so elects, delivery of the Shares may be made by credit through full fast transfer to an account or accounts at The Depository Trust
Company designated by the Agent. On each Settlement Date, the Agent will deliver the Net Proceeds in same day funds to an account designated
by the Company on, or prior to, such Settlement Date. The Company agrees that if the Company, or its transfer agent (if applicable), defaults
in its obligation to timely deliver duly authorized Shares on a Settlement Date, the Company agrees that in addition to and in no way
limiting the rights and obligations set forth in Section 5 hereto, it will (i) hold the Agent harmless against any loss, claim, damage,
or expense (including reasonable legal fees and expenses), as incurred, arising out of or in connection with such default by the Company,
(iii) reimburse the Agent for any losses incurred by the Agent attributable, directly or indirectly, to such default and (iii) pay to
the Agent any commission or other compensation to which the Agent would otherwise have been entitled absent such default.

     

     

    

(viii) Each of the Company and the Agent hereby agrees and acknowledges
that all sales and solicitations of sales of the Shares by the Agent shall be made solely in the United States and no sales or solicitations
of sales of the Shares by the Agent shall be done in Canada or through the facilities of the TSX.

 

(ix) During the term of this Agreement, neither the Agent
nor any of its respective affiliates or subsidiaries shall engage in (i) any short sale of any security of the Company or (ii) any sale
of any security of the Company that the Agent does not own or any sale which is consummated by the delivery of a security of the Company
borrowed by, or for the account of, the Agent. Neither the Agent nor any of its respective affiliates or subsidiaries shall engage in
any proprietary trading or trading for the Agent’s (or its affiliates’ or subsidiaries’) own account.

 

(x) During the term of this Agreement, and notwithstanding
anything to the contrary herein, the Agent agrees that in no event will it or any of its affiliates engage in any market making, bidding,
stabilization or other trading activity with regard to the Common Shares if such activity would be prohibited under Regulation M or other
anti-manipulation rules under the Securities Act.

 

(b) Maximum Amount. Under no circumstances shall the aggregate
number or aggregate value of the Shares sold pursuant to this Agreement exceed: (i) the aggregate number and aggregate dollar amount of
Common Shares available for issuance under the currently effective Registration Statement, (ii) the aggregate dollar amount of Common
Shares permitted to be sold under the Company’s effective Registration Statement (including any limit set forth in General Instruction
I.B.6 thereof, if applicable) or (iii) the aggregate number of aggregate dollar amount of the Common Shares for which the Company has
filed any Prospectus Supplement in connection with the Shares (the lesser of (i), (ii) and (iii) the “Maximum Amount”).

 

(c) No Association or Partnership. Nothing herein contained
shall constitute the Agent an unincorporated association or partner with the Company.

 

(d) Duration. Under no circumstances shall any Shares be sold
pursuant to this Agreement after the date which is three years after the Registration Statement is first declared effective by the Commission.

 

(e) Market Transactions by Agents. The Company acknowledges
and agrees that the Agent has informed the Company that the Agent may, to the extent permitted under the Securities Act, the Exchange
Act and this Agreement, purchase and sell Common Shares for its own account while this Agreement is in effect, provided, that (i)
no sale for its own account shall take place while a Placement Notice is in effect (except to the extent the Agent may engage in sales
of Shares purchased or deemed purchased from the Company as a “riskless principal” or in a similar capacity) and (ii) the
Company shall not be deemed to have authorized or consented to any such purchases or sales by the Agent. The Company consents to the Agent
trading in the Common Shares for the account of any of its clients at the same time as sales of the Shares occur pursuant to this Agreement.

 

	 	3.	Covenants of the Company. The Company covenants and agrees with the Agent as follows:

 

(a) Amendments to Registration Statement and Prospectus. After
the date of this Agreement and during any period in which a Prospectus relating to any Shares is required to be delivered by the Agent
under the Securities Act (including in circumstances where such requirement may be satisfied pursuant to Rule 172 under the Securities
Act), the Company agrees that it will: (i) notify the Agent promptly of the time when any subsequent amendment to the Registration Statement,
other than documents incorporated by reference or amendments not related to the Shares, has been filed with the Commission and/or has
become effective or any subsequent supplement to the Prospectus related to the Shares has been filed and of any request by the Commission
for any amendment or supplement to the Registration Statement (insofar as it relates to the transactions contemplated hereby) or Prospectus
or for additional information; (ii) prepare and file with the Commission, promptly upon the Agent’s request, any amendments or supplements
to the Registration Statement or Prospectus that, in the Agent’s reasonable opinion, may be necessary or advisable in connection
with the sale of the Shares by the Agent (provided, however, that the failure of the Agent to make such request shall not relieve
the Company of any obligation or liability hereunder, or affect the Agent’s right to rely on the representations and warranties
made by the Company in this Agreement); (iii) not file any amendment or supplement to the Registration Statement or Prospectus, other
than documents incorporated by reference, relating to the Shares or a security convertible into the Shares unless a copy thereof has been
submitted to the Agent within a reasonable period of time before the filing and the Agent has not reasonably objected thereto (provided,
however, that (A) the failure of the Agent to make such objection shall not relieve the Company of any obligation or liability hereunder,
or affect the Agent’s right to rely on the representations and warranties made by the Company in this Agreement), (B) the Company
has no obligation to provide the Agent any advance copy of such filing or to provide the Agent an opportunity to object to such filing
if the filing does not name the Agent or does not relate to a Placement or other transaction contemplated hereunder, and (C) the only
remedy that the Agent shall have with respect to the failure by the Company to provide the Agent with such copy or the filing of such
amendment or supplement despite the Agent’s objection shall be to cease making sales under this Agreement); (iv) furnish to the
Agent at the time of filing thereof a copy of any document that upon filing is deemed to be incorporated by reference into the Registration
Statement or Prospectus, except for those documents available via EDGAR; and (iv) cause each amendment or supplement to the Prospectus,
other than documents incorporated by reference, to be filed with the Commission as required pursuant to the applicable paragraph of Rule
424(b) of the Securities Act.

     

     

    

 

(b) Stop Order. The Company will advise the Agent, promptly
after it receives notice or obtains knowledge thereof, of the issuance or threatened issuance by the Commission of any stop order suspending
the effectiveness of the Registration Statement, of the suspension of the qualification of the Shares for offering or sale in any jurisdiction,
or of the initiation or threatening of any proceeding for any such purpose, and it will promptly use its commercially reasonable efforts
to prevent the issuance of any stop order or to obtain its withdrawal if such a stop order should be issued.

 

(c) Continuing Amendments. During any period in which a Prospectus
relating to the Shares is required to be delivered by the Agent under the Securities Act with respect to any Placement or pending sale
of the Shares, (including in circumstances where such requirement may be satisfied pursuant to Rule 172 under the Securities Act), the
Company will comply with all requirements imposed upon it by the Securities Act, as from time to time in force, and to file on or before
their respective due dates all reports (taking into account any extensions available under the Exchange Act) and any definitive proxy
or information statements required to be filed by the Company with the Commission pursuant to Sections 13(a), 13(c), 14, 15(d) or any
other provision of or under the Exchange Act. If during such period any event occurs as a result of which the Prospectus as then amended
or supplemented would include an untrue statement of a material fact or omit to state a material fact necessary to make the statements
therein, in the light of the circumstances then existing, not misleading, or if during such period it is necessary to amend or supplement
the Registration Statement or Prospectus to comply with the Securities Act, the Company will promptly notify the Agent to suspend the
offering of Shares during such period and the Company will promptly amend or supplement the Registration Statement or Prospectus (at the
expense of the Company) so as to correct such statement or omission or effect such compliance.

 

(d) Qualification of the Shares. The Company shall take or cause
to be taken all necessary action to qualify the Shares for sale under the securities laws of such jurisdictions as the Agent reasonably
designates and to continue such qualifications in effect so long as required for the distribution of the Shares, except that the Company
shall not be required in connection therewith to qualify as a foreign corporation or to execute a general consent to service of process
in any state. The Company shall promptly advise the Agent of the receipt by the Company of any notification with respect to the suspension
of the qualification of the Shares for offer or sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose.

 

(e) Copies of Registration Statement and Prospectus. The Company
will furnish to the Agent and counsel for the Agent copies of the Registration Statement (which will include three complete manually signed
copies of the Registration Statement and all consents and exhibits filed therewith), the Prospectus and all amendments and supplements
to such documents, in each case as soon as available and in such quantities as the Agent may from time to time reasonably request.

     

     

    

(f) Section 11(a). The Company will make generally available
to its security holders as soon as practicable an earnings statement (which need not be audited) covering a 12-month period that shall
satisfy the provisions of Section 11(a) of the Securities Act and Rule 158 promulgated thereunder.

 

(g) Expenses. The Company, whether or not the transactions contemplated
hereunder are consummated or this Agreement is terminated, will pay or cause to be paid (i) all expenses (including stock or transfer
taxes and stamp or similar duties allocated to the respective transferees) incurred in connection with the registration, issue, sale and
delivery of the Shares, (ii) all expenses and fees (including, without limitation, fees and expenses of the Company’s accountants
and counsel) in connection with the preparation, printing, filing, delivery, and shipping of the Registration Statement (including the
financial statements therein and all amendments, schedules, and exhibits thereto), the Shares, the Prospectus and any amendment thereof
or supplement thereto, and the producing, word-processing, printing, delivery, and shipping of this Agreement and other underwriting documents
or closing documents, including Blue Sky Memoranda (covering the states and other applicable jurisdictions) and including the cost to
furnish copies of each thereof to the Agent, (iii) all filing fees, (iv) all fees and disbursements of the Agent’s counsel incurred
in connection with the qualification of the Shares for offering and sale by the Agent or by dealers under the securities or blue sky laws
of the states and other jurisdictions which Agent shall designate, (v) the fees and expenses of any transfer agent or registrar, (vi)
the filing fees and fees and disbursements of Agent’s counsel incident to any required review and approval by FINRA of the terms
of the sale of the Shares, (vii) listing fees, if any, (viii) the cost and expenses of the Company relating to investor presentations
or any “roadshow” undertaken in connection with marketing of the Shares, and (ix) all other costs and expenses incident to
the performance of its obligations hereunder that are not otherwise specifically provided for herein. In addition to (iv) and (vi) above,
the Company shall reimburse the Agent for the out of pocket reasonable fees and disbursements of the Agent’s counsel actually incurred
in an amount which shall not exceed (A) $50,000 in connection the signing of this Agreement and (B) an additional $10,000 in each calendar
year in connection with any Representation Dates.

 

(h) Use of Proceeds. The Company will apply the net proceeds
from the sale of the Shares in the manner the Prospectus.

 

(i) Restrictions on Future Sales. During the term of this Agreement,
without giving the Agent at least two business days’ prior written notice specifying the nature of the proposed sale and the date
of such proposed sale so as to permit the Agent to suspend activity under this Agreement for such period of time as requested by the Company,
the Company will not, offer for sale, sell, contract to sell, pledge, grant any option for the sale of, enter into any transaction which
is designed to, or might reasonably be expected to, result in the disposition of Common Shares (whether by actual disposition or effective
economic disposition due to cash settlement or otherwise) by the Company or any affiliate, or otherwise issue or dispose of, directly
or indirectly (or publicly disclose the intention to make any such offer, sale, pledge, grant, issuance or other disposition), any Common
Shares or any securities convertible into or exchangeable for, or any options or rights to purchase or acquire, Common Shares, or permit
the registration under the Securities Act of any such Common Shares, securities, options or rights, except for: (i) the registration of
the Shares and the sales through the Agent pursuant to this Agreement, (ii) the registration, sales and issuance of shares through any
dividend reinvestment and stock purchase plan of the Company, (iii) the grant of restricted stock units and options pursuant to employee
or director benefit plans existing as of the date hereof or hereafter implemented, and the issuance of Common Shares issuable upon the
exercise of such options or vesting of such restricted stock units and (iv) the issuance of shares pursuant to the exercise of warrants.

 

(j) No Stabilization or Manipulation. The Company has not taken
and will not take, directly or indirectly, any action designed to, or which might reasonably be expected to cause or result in, or which
constitutes: (i) the stabilization or manipulation of the price of the Common Shares or any other security of the Company to facilitate
the sale or resale of the Shares, (ii) a violation of Regulation M. The Company shall notify the Agent of any violation of Regulation
M by the Company or any of its Subsidiaries or any of their respective officers or directors promptly after the Company has received notice
or obtained knowledge of any such violation. The Company shall not invest in futures contracts, options on futures contracts or options
on commodities, unless the Company is exempt from the registration requirements of the Commodity Exchange Act, as amended (the “Commodity
Act”), or otherwise complies with the Commodity Act. The Company will not engage in any activities bearing on the Commodity
Act, unless such activities are exempt from the Commodity Act or otherwise comply with the Commodity Act.

     

     

    

(k) No Other Broker. The Company will not incur any liability
for any finder’s or broker’s fee or agent’s commission in connection with the execution and delivery of this Agreement,
or the consummation of the transactions contemplated hereby.

 

(l) Timely Securities Act and Exchange Act Reports. During any
prospectus delivery period, the Company will use its commercially reasonable efforts to file on a timely basis with the Commission such
periodic and current reports as required by the Securities Act and the Exchange Act.

 

(m) Internal Controls. The Company and its Subsidiaries will
maintain such controls and other procedures, including without limitation, those required by Sections 302 and 906 of the Sarbanes-Oxley
Act and the applicable regulations thereunder, that are designed to ensure that information required to be disclosed by the Company in
the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified
in the Commission’s rules and forms, including without limitation, controls and procedures designed to ensure that information required
to be disclosed by the Company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the Company’s
management, including its principal executive officer and its principal financial officer, or persons performing similar functions, as
appropriate to allow timely decisions regarding required disclosure, to ensure that material information relating to Company, including
its Subsidiaries, is made known to them by others within those entities.

 

(n) Permitted Free Writing Prospectus. The Company represents
and agrees that, unless it obtains the prior written consent of the Agent, and the Agent represents and agrees that, unless it obtain
the prior written consent of the Company, the Agent has made and will not make any offer relating to the Shares that would constitute
an “issuer free writing prospectus,” as defined in Rule 433 under the Securities Act, or that would otherwise constitute a
“free writing prospectus,” as defined in Rule 405 under the Securities Act, required to be filed with the Commission. Any
such free writing prospectus consented to by the Company and the Agent is hereinafter referred to as a “Permitted Free Writing
Prospectus.” The Company represents that it has treated or agrees that it will treat each Permitted Free Writing Prospectus
as an “issuer free writing prospectus,” as defined in Rule 433, and has complied and will comply with the requirements of
Rule 433 applicable to any Permitted Free Writing Prospectus, including timely Commission filing where required, legending and record
keeping.

 

(o) Representation Date and Opinions of Counsel. Prior to the
date of the first Placement Notice, and thereafter during the term of this Agreement, each time the Company (A) files an amendment to
the Registration Statement or Prospectus (other than relating solely to the offering of securities other than the Shares), (B) files an
annual report on Form 10-K under the Exchange Act or files its quarterly reports on Form 10-Q under the Exchange Act; and (C) files a
report on Form 8-K containing amended financial statements (other than an earnings release) under the Exchange Act, (each of the dates
in (A), (B) and (C) are referred to herein as a “Representation Date”), the Company shall cause:

 

(i) McCarthy Tétrault LLP, Canadian counsel for the Company,
to furnish to the Agent the opinion of such counsel, dated as of such date and addressed to the Agent, in form and substance reasonably
satisfactory to the Agent; provided, however that the opinion of such counsel shall only be required for the first Representation Date.

 

(ii) Dorsey and Whitney, U.S. counsel for the Company, to furnish to
the Agent the opinion of such counsel, dated as of such date and addressed to the Agent, in form and substance reasonably satisfactory
to the Agent.

 

(iii) Cooley LLP, intellectual property and patent counsel for the
Company, to furnish to the Agent the opinion of such counsel, dated as of such date and addressed to the Agent, in form and substance
reasonably satisfactory to the Agent; provided however, the opinion of counsel shall only be required for the first Representation Date.

 

Notwithstanding the foregoing, the requirement to provide counsel opinions
under this Section 3(o) shall be waived for any Representation Date occurring at a time at which no Placement Notice is pending, which
waiver shall continue until the date the Company delivers a Placement Notice to the Agent. Notwithstanding the foregoing, if the Company
subsequently decides to sell Shares following a Representation Date when the Company relied on such waiver and did not provide the Agent
with opinions under this Section 3(o), then before the Agent sells any Shares pursuant to Section 2(a), the Company shall cause the opinions
(including the opinion pursuant to Section 3(o) if not delivered on the date of the prior Form 10-K), comfort letter, certificates and
documents that would be delivered on a Representation Date to be delivered.

     

     

    

(p) Representation Date and Comfort Letter. Prior to the date
of the first Placement Notice and thereafter during the term of this Agreement, on each Representation Date to which a waiver does not
apply, the Company shall cause KPMG LLP, or other independent accountants satisfactory to the Agent (the “Accountants”),
to deliver to the Agent a letter, dated as of such date and addressed to the Agent, confirming that they are independent public accountants
within the meaning of the Securities Act and are in compliance with the applicable requirements relating to the qualifications of accountants
under Rule 2-01 of Regulation S-X of the Commission, and stating the conclusions and findings of said firm with respect to the financial
information and other matters covered by its letter in form and substance satisfactory to the Agent of the same tenor as the first such
letter received hereunder (the “Comfort Letter”), provided, however, the Company shall not be required to deliver
a Comfort Letter to the Agent on or prior to each Representation Date in connection with the filing of a quarterly report on Form 10-Q
(including any Form 10-Q/A containing amended financial information or a material amendment to the previously filed quarterly report on
Form 10-Q). For the avoidance of doubt, the Company shall be required to furnish no more than one Comfort Letter pursuant to the Agreement
per calendar year.

 

(q) Representation Date and Representation Certificate. Prior
to the date of the First Placement Notice and thereafter during the term of this Agreement, on each Representation Date to which a waiver
does not apply, the Company shall furnish to the Agent a certificate (the “Representation Certificate”), substantially
in the form of Schedule 3 and dated as of such date, addressed to the Agent and signed by the chief executive officer and by the
chief financial officer of the Company.

 

(r) Disclosure of Shares Sold. The Company shall disclose in
its quarterly reports on Form 10-Q and in its annual report on Form 10-K the number of the Shares sold through the Agent under this Agreement,
the net proceeds to the Company and the compensation paid by the Company with respect to sales of the Shares pursuant to this Agreement
during the relevant quarter.

 

(s) Continued Listing of Shares. The Company shall use its commercially
reasonable efforts to maintain the listing of the Common Shares on the Exchange and the TSX.

 

(t) Canadian Securities Laws. The Company will use commercially
reasonable efforts to comply with all requirements imposed upon it by the Canadian securities laws as from time to time in force, so far
as necessary to permit the continuance of sales of, or dealings in, the Shares as contemplated by the provisions hereof and the Prospectus.

 

(u) Notice of Changes. At any time during the term of this
Agreement, as supplemented from time to time, the Company shall advise the Agent immediately after it shall have received notice or obtain
knowledge thereof, of any information or fact that would alter or affect any opinion, certificate, letter and other document provided
to the Agent pursuant to this Section 3.

 

(v) Maximum Amount. The Company will not instruct the Agent
to sell or otherwise attempt to sell Shares in excess of the Maximum Amount.

 

4. Conditions of Agent’s Obligations. The obligations
of the Agent hereunder are subject to (i) the accuracy, as of the Effective Time, each Representation Date, each Settlement Date (in each
case, as if made at such date) of and compliance with all representations, warranties and agreements of the Company contained herein,
(ii) the performance by the Company of its obligations hereunder and (iii) the following additional conditions:

 

(a) Continuing Amendments; No Stop Order. If filing of the Prospectus,
or any amendment or supplement thereto, or any Permitted Free Writing Prospectus, is required under the Securities Act, the Company shall
have filed the Prospectus (or such amendment or supplement) or such Permitted Free Writing Prospectus with the Commission in the manner
and within the time period so required (without reliance on Rule 424(b)(8) or Rule 164(b)); the Registration Statement shall be effective;
no stop order suspending the effectiveness of the Registration Statement or any part thereof, any Rule 462(b) Registration Statement,
or any amendment thereof, nor suspending or preventing the use of the Prospectus shall have been issued; no proceedings for the issuance
of such an order shall have been initiated or threatened; and any request of the Commission for additional information (to be included
in the Registration Statement, the Prospectus or otherwise) shall have been complied with to the Agent;s satisfaction.

     

     

    

(b) Absence of Certain Events. None of the following events
shall have occurred and be continuing: (i) receipt by the Company or any of its Subsidiaries of any request for additional information
from the Commission or any other federal or state governmental authority during the period of effectiveness of the Registration Statement,
the response to which would require any post-effective amendments or supplements to the Registration Statement or the Prospectus; (ii)
the issuance by the Commission or any other federal or state governmental authority of any stop order suspending the effectiveness of
the Registration Statement or the initiation of any proceedings for that purpose; (iii) receipt by the Company of any notification with
respect to the suspension of the qualification or exemption from qualification of any of the Shares for sale in any jurisdiction or the
initiation or threatening of any proceeding for such purpose; or (iv) the occurrence of any event that makes any material statement made
in the Registration Statement or the Prospectus or any material document incorporated or deemed to be incorporated therein by reference
untrue in any material respect or that requires the making of any changes in the Registration Statement, related Prospectus or such documents
so that, in the case of the Registration Statement, it will not contain any materially untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary to make the statements therein not misleading and, that in the case
of the Prospectus, it will not contain any materially untrue statement of a material fact or omit to state any material fact required
to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

 

(c) No Material Misstatement or Omission. The Agent shall not
have advised the Company that the Registration Statement or any the Prospectus, contains an untrue statement of fact which, in the Agent’s
opinion, is material, or omits to state a fact which, in the Agent’s opinion, is material and is required to be stated therein or
necessary to make the statements therein not misleading.

 

(d) No Adverse Changes. Except as contemplated in the Prospectus,
subsequent to the respective dates as of which information is given in the Prospectus, neither the Company nor any of its Subsidiaries
shall have incurred any material liabilities or obligations, direct or contingent, or entered into any material transactions, or declared
or paid any dividends or made any distribution of any kind with respect to its capital stock; and there shall not have been any change
in the capital stock (other than a change in the number of outstanding Common Shares due to the issuance of shares upon the exercise of
outstanding options or warrants), or any material change in the short-term or long-term debt of the Company, or any issuance of options,
warrants, convertible securities or other rights to purchase the capital stock of the Company or any of its Subsidiaries, or any development
involving a prospective Material Adverse Effect (whether or not arising in the ordinary course of business), or any loss by strike, fire,
flood, earthquake, accident or other calamity, whether or not covered by insurance, incurred by the Company or any Subsidiary, the effect
of which, in any such case described above, in the Agent’s judgment, makes it impractical or inadvisable to offer or deliver the
Shares on the terms and in the manner contemplated in the Prospectus.

 

(e) Compliance with Certain Obligations. The Company shall have
performed each of its obligations under Sections 3(o) – 3(q).

 

(f) Opinion of Agent’s Counsel. On each Representation
Date to which a waiver does not apply, there shall have been furnished to the Agent the opinion and negative assurance letter of Mintz,
Levin, Cohn, Ferris, Glovsky and Popeo, P.C., counsel for the Agent, dated as of such Representation Date and addressed to the Agent,
in a form reasonably satisfactory to the Agent, and such counsel shall have received such papers and information as they request to enable
them to pass upon such matters; provided however, the opinion of Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. shall only be required
prior to the first Placement Notice, and thereafter, only a negative assurance letter of such counsel shall be required for each subsequent
Representation Date.

 

(g) Representation Certificate. On or prior to the first Placement
Notice, the Agent shall have received the Representation Certificate in form and substance satisfactory to the Agent and its counsel.

     

     

    

(h) No Objection by FINRA. The Financial Industry Regulatory
Authority, Inc. shall have raised no objection to the fairness and reasonableness of the underwriting terms and arrangements.

 

(i) Timely Filing of Prospectus and Prospectus Supplement. All
filings with the Commission required by Rule 424 under the Securities Act to have been filed by the Settlement Date, as the case may be,
shall have been made within the applicable time period prescribed for such filing by Rule 424.

 

(j) Additional Documents and Certificates. The Company shall
have furnished to the Agent and the Agent’s counsel such additional documents, certificates and evidence as they may have reasonably
requested.

All opinions, certificates, letters and other documents described in
this Section 4 will be in compliance with the provisions hereof only if they are satisfactory in form and substance to the Agent and the
Agent’s counsel. The Company will furnish the Agent with such conformed copies of such opinions, certificates, letters and other
documents as the Agent shall reasonably request.

 

5. Indemnification and Contribution.

 

(a) Company Indemnification. The Company agrees to indemnify
and hold harmless the Agent, its affiliates, directors, officers and employees, and each person, if any, who controls the Agent within
the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act against any losses, claims, damages or liabilities,
joint or several, to which the Agent may become subject, under the Securities Act or otherwise (including in settlement of any litigation),
insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon, in whole or in
part:

 

(i) an untrue statement or alleged untrue statement of a material fact
contained in the Registration Statement, including the 430B Information and at any subsequent time pursuant to Rules 430A and 430B promulgated
under the Securities Act, and any other information deemed to be part of the Registration Statement at the time of effectiveness, and
at any subsequent time pursuant to the Securities Act or the Exchange Act, and the Prospectus, or any amendment or supplement thereto
(including any documents filed under the Exchange Act and deemed to be incorporated by reference into the Prospectus), any Permitted Free
Writing Prospectus, or any roadshow as defined in Rule 433(h) under the Securities Act (a “road show”), or an
omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein
not misleading,

 

(ii) any inaccuracy in the representations and warranties of the Company
contained herein;

 

(i) any investigation or proceeding by any governmental authority,
commenced or threatened (whether or not the Agent is a target of or party to such investigation or proceeding);

 

(ii) any failure of the Company to perform its respective obligations
hereunder or under law;

 

and will reimburse the Agent for any legal or other expenses reasonably
incurred by it in connection with investigating or defending against such loss, claim, damage, liability or action; provided, however,
that the Company shall not be liable in any such case of (i) through (iv) to the extent that any such loss, claim, damage, liability or
action arises out of or is based upon an untrue statement or alleged untrue statement or omission or alleged omission made in the Registration
Statement, the Prospectus, or any such amendment or supplement, in reliance upon and in conformity with written information furnished
to the Company by the Agent specifically for use in the preparation thereof. “Rule 430B Information,” as used
herein, means information with respect to the Shares and the offering thereof permitted to be omitted from the Registration Statement
when it becomes effective pursuant to Rule 430B.

 

In addition to its other obligations under this Section 5(a), the Company
agrees that, as an interim measure during the pendency of any claim, action, investigation, inquiry or other proceeding arising out of
or based upon any statement or omission, or any alleged statement or omission, described in this Section 5(a), it will reimburse the Agent
on a monthly basis for all reasonable legal fees or other expenses incurred in connection with investigating or defending any such claim,
action, investigation, inquiry or other proceeding, notwithstanding the absence of a judicial determination as to the propriety and enforceability
of the Company’s obligation to reimburse the Agent for such expenses and the possibility that such payments might later be held
to have been improper by a court of competent jurisdiction. Any such interim reimbursement payments which are not made to the Agent within
30 days of a request for reimbursement shall bear interest at the WSJ Prime Rate (as published from time to time by the Wall Street Journal).

     

     

    

(b) Agent’s Indemnification. The Agent will indemnify
and hold harmless the Company against any losses, claims, damages or liabilities to which the Company may become subject, under the Securities
Act or otherwise (including in settlement of any litigation, if such settlement is effected with the written consent of the Agent), but
only insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon an untrue statement
or alleged untrue statement of a material fact contained in the Registration Statement, the Prospectus, any amendment or supplement thereto,
or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary
to make the statements therein not misleading, in each case to the extent, but only to the extent, that such untrue statement or alleged
untrue statement or omission or alleged omission was made in conformity with written information furnished to the Company by the Agent
specifically for use in the preparation thereof, it being understood and agreed that the only information furnished by the Agent for use
in the Registration Statement or the Prospectus consists of the statements set forth in the fifth and sixth paragraphs under the caption
“Plan of Distribution” in the Prospectus, and will reimburse the Company for any legal or other expenses reasonably incurred
by the Company in connection with investigating or defending against any such loss, claim, damage, liability or action.

 

(c) Notice and Procedures. Promptly after receipt by an indemnified
party under subsection (a) or (b) above of notice of the commencement of any action, such indemnified party shall, if a claim in respect
thereof is to be made against the indemnifying party under such subsection, notify the indemnifying party in writing of the commencement
thereof; but the omission so to notify the indemnifying party shall not relieve the indemnifying party from any liability that it may
have to any indemnified party except to the extent such indemnifying party has been materially prejudiced by such failure. In case any
such action shall be brought against any indemnified party, and it shall notify the indemnifying party of the commencement thereof, the
indemnifying party shall be entitled to participate in, and, to the extent that it shall wish, jointly with any other indemnifying party
similarly notified, to assume the defense thereof, with counsel reasonably satisfactory to such indemnified party, and after notice from
the indemnifying party to such indemnified party of the indemnifying party’s election so to assume the defense thereof, the indemnifying
party shall not be liable to such indemnified party under such subsection for any legal or other expenses subsequently incurred by such
indemnified party in connection with the defense thereof other than reasonable costs of investigation; provided, however,
that if, in the sole judgment of the Agent, it is advisable for the Agent to be represented by separate counsel, the Agent shall have
the right to employ separate counsel to represent the Agent, in which event the reasonable fees and expenses of such separate counsel
shall be borne by the indemnifying party or parties and reimbursed to the Agent as incurred (in accordance with the provisions of the
second paragraph in subsection (a) above).

 

The indemnifying party under this Section 5 shall not be liable for
any settlement of any proceeding effected without its written consent, but if settled with such consent or if there be a final judgment
for the plaintiff, the indemnifying party agrees to indemnify the indemnified party against any loss, claim, damage, liability or expense
by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an indemnified party shall have requested
an indemnifying party to reimburse the indemnified party for fees and expenses of counsel as contemplated by this Section 5, the indemnifying
party agrees that it shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement
is entered into more than 30 days after receipt by such indemnifying party of the aforesaid request, (ii) such indemnifying party shall
have received notice of the terms of such settlement at least 30 days prior to such settlement being entered into, and (iii) such indemnifying
party shall not have reimbursed the indemnified party in accordance with such request prior to the date of such settlement. No indemnifying
party shall, without the prior written consent of the indemnified party, effect any settlement, compromise or consent to the entry of
judgment in any pending or threatened action, suit or proceeding in respect of which any indemnified party is or could have been a party
and indemnity was or could have been sought hereunder by such indemnified party, unless such settlement, compromise or consent (a) includes
an unconditional release of such indemnified party from all liability on claims that are the subject matter of such action, suit or proceeding
and (b) does not include a statement as to or an admission of fault, culpability or a failure to act by or on behalf of any indemnified
party.

     

     

    

(d) Contribution; Limitations on Liability; Non-Exclusive Remedy.
If the indemnification provided for in this Section 5 is unavailable or insufficient to hold harmless an indemnified party under subsection
(a) or (b) above, then each indemnifying party shall contribute to the amount paid or payable by such indemnified party as a result of
the losses, claims, damages or liabilities referred to in subsection (a) or (b) above, (i) in such proportion as is appropriate to reflect
the relative benefits received by the Company on the one hand and the Agent on the other from the offering of the Shares, or (ii) if the
allocation provided by clause (i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the
relative benefits referred to in clause (i) above but also the relative fault of the Company on the one hand and the Agent on the other
in connection with the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant
equitable considerations. The relative benefits received by the Company on the one hand and the Agent on the other shall be deemed to
be in the same proportion as the total net proceeds from the offering (before deducting expenses) received by the Company bear to the
total commissions received by the Agent (before deducting expenses) from the sale of the Shares. The relative fault shall be determined
by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission
to state a material fact relates to information supplied by the Company or the Agent, the intent of the parties and their relative knowledge,
access to information and opportunity to correct or prevent such untrue statement or omission. The Company and the Agent agree that it
would not be just and equitable if contributions pursuant to this subsection (d) were to be determined by pro rata allocation or by any
other method of allocation which does not take account of the equitable considerations referred to in this subsection (d). The amount
paid or payable by an indemnified party as a result of the losses, claims, damages or liabilities referred to in this subsection (d) shall
be deemed to include any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending
against any action or claim which is the subject of this subsection (d). Notwithstanding the provisions of this subsection (d), the Agent
shall not be required to contribute any amount in excess of the commissions received by it under this Agreement. No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was
not guilty of such fraudulent misrepresentation.

 

6. Representations and Agreements to Survive Delivery.
All representations, warranties, and agreements of the Company herein or in certificates delivered pursuant hereto, including but not
limited to the agreements of the Agent and the Company contained in Section 5 hereof, shall remain operative and in full force and effect
regardless of any investigation made by or on behalf of the Agent or any controlling person thereof, or the Company or any of its officers,
directors, or controlling persons, and shall survive delivery of, and payment for, the Shares to and by the Agent hereunder.

 

7. Termination of this Agreement.  

 

(a) The Company shall have the right, by giving prior written notice
as hereinafter specified, to terminate the provisions of this Agreement relating to the solicitation of offers to purchase the Shares
in its sole discretion at any time. Any such termination shall be without liability of any party to any other party except that (i) with
respect to any pending sale, through the Agent for the Company, the obligations of the Company, including in respect of compensation of
the Agent, shall remain in full force and effect notwithstanding the termination and (ii) the provisions of Section 3.(g), Section 5 and
Section 6 of this Agreement shall remain in full force and effect notwithstanding such termination.

 

(b) The Agent shall have the right, by giving written notice as hereinafter
specified, to terminate the provisions of this Agreement solely with respect to the Agent relating to the solicitation of offers to purchase
the Shares in its sole discretion at any time. Any such termination shall be without liability of any party to any other party except
that the provisions of Section 3.(g), Section 5 and Section 6 of this Agreement shall remain in full force and effect notwithstanding
such termination.

 

(c) Unless earlier terminated pursuant to this Section 7, this Agreement
shall automatically terminate upon the earlier to occur of the issuance and sale of all of the Shares through the Agent on the terms and
subject to the conditions set forth herein, except that the provisions of Section 3.(g), Section 5 and Section 6 of this Agreement shall
remain in full force and effect notwithstanding such termination.

 

     

     

    

(d) This Agreement shall remain in full force and effect unless terminated
pursuant to Sections 7(a), (b) or (c) above or otherwise by mutual agreement of the parties; provided that any such termination by mutual
agreement shall in all cases be deemed to provide that Section 3.(g), Section 5 and Section 6 shall remain in full force and effect.

 

(e) Any termination of this Agreement shall be effective on the date
specified in such notice of termination; provided that such termination shall not be effective until the close of business on the date
of receipt of such notice by the Agent or the Company, as the case may be. If such termination shall occur prior to the Settlement Date
for any sale of the Shares, such sale shall settle in accordance with the provisions of Section 2(a)(vii) of this Agreement.

 

8. Default by the Company. If the Company shall fail
at any Settlement Date to sell and deliver the number of Shares which it is obligated to sell hereunder, then this Agreement shall terminate
without any liability on the part of the Agent or, except as provided in Section 3.(g) hereof, any non-defaulting party. No action taken
pursuant to this Section shall relieve the Company from liability, if any, in respect of such default, and the Company shall (A) hold
the Agent harmless against any loss, claim or damage arising from or as a result of such default by the Company and (B) pay the Agent
any commission to which it would otherwise be entitled absent such default.

 

9. Notices. Except as otherwise provided herein,
all communications under this Agreement shall be in writing and, if to the Agent, shall be delivered via overnight delivery services to
(i) JonesTrading Institutional Services LLC, 211 E. 43rd Street, New York, NY 10017, Attention: Ryan J. Gerety; and (ii) the Company at
251 Consumers Road, Suite 1105, Toronto A6 M2J 4R3, Attention: Chief Financial Officer; or in each case to such other address as the person
to be notified may have requested in writing. Any party to this Agreement may change such address for notices by sending to the parties
to this Agreement written notice of a new address for such purpose.

 

10. Persons Entitled to Benefit of Agreement. This Agreement
shall inure to the benefit of and be binding upon the parties hereto and their respective successors and assigns and the controlling persons,
officers and directors referred to in Section 5(d). Nothing in this Agreement is intended or shall be construed to give to any other person,
firm or corporation any legal or equitable remedy or claim under or in respect of this Agreement or any provision herein contained. The
term “successors and assigns” as herein used shall not include any purchaser, as such purchaser, of any of the Shares from
the Agent.

 

11. Absence of Fiduciary Relationship. The Company, having
been advised by counsel, acknowledges and agrees that: (a) the Agent has been retained solely to act as a sales agent in connection with
the sale of the Shares and that no fiduciary, advisory or agency relationship between the Company (including any of the Company’s
affiliates (including directors), equity holders, creditors, employees or agents, hereafter, “Company Representatives”),
on the one hand, and the Agent on the other, has been created or will be created in respect of any of the transactions contemplated by
this Agreement, irrespective of whether the Agent has advised or is advising the Company on other matters and irrespective of the use
of the defined term “Agent;” (b) neither of the Agent nor any of its respective affiliates (including directors), equity holders,
creditors, employees or agents, hereafter, “Agent Representatives”) shall have any duty or obligation to the
Company or any Company Representative except as set forth in this Agreement; (b) the price and other terms of any Placement executed pursuant
to this Agreement, as well as the terms of this Agreement, are deemed acceptable to the Company and its counsel, following discussions
and arms-length negotiations with the Agent; (c) the Company is capable of evaluating and understanding, and in fact has evaluated, understands
and accepts the terms, risks and conditions of any Placement to be executed pursuant to this Agreement, and any other transactions contemplated
by this Agreement; (c) the Company has been advised that the Agent and the Agent Representatives are engaged in a broad range of transactions
which may involve interests that differ from those of the Company and that the Agent and the Agent Representatives have no obligation
to disclose any such interests and transactions to the Company by virtue of any fiduciary, advisory or agency relationship, or otherwise;
(d) the Company has been advised that the Agent is acting, in respect of any Placement and the transactions contemplated by this Agreement,
solely for the benefit of the Agent, and not on behalf of the Company; and (e) the Company and the Company Representatives waive, to the
fullest extent permitted by law, any claims that they may have against the Agent or any of the Agent Representatives for breach of fiduciary
duty or alleged breach of fiduciary duty in respect of any Placement or any of the transactions contemplated by this Agreement and agree
that the Agent and the Agent Representatives shall have no liability (whether direct or indirect, in contract, tort or otherwise) to the
Company or any of the Company Representatives in respect of any person asserting any claim of breach of any fiduciary duty on behalf of
or in right of the Company or any of the Company Representatives.

 

     

     

    

12. Governing Law and Waiver of Jury Trial. This Agreement
shall be governed by and construed in accordance with the laws of the State of New York. THE COMPANY (ON ITS OWN BEHALF AND ON BEHALF
OF ITS STOCKHOLDERS AND AFFILIATES) HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO
TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

 

13. Submission to Jurisdiction, Etc. Each party hereby
submits to the exclusive jurisdiction of the U.S. federal and New York state courts sitting in the Borough of Manhattan, City of New York,
in any suit or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby. The parties hereby irrevocably
and unconditionally waive any objection to the laying of venue of any lawsuit, action or other proceeding in such courts, and hereby further
irrevocably and unconditionally waive and agree not to plead or claim in any such court that any such lawsuit, action or other proceeding
brought in any such court has been brought in an inconvenient forum. The Company irrevocably designates and appoints Aptose Biosciences
U.S. Inc. located at Unit 120, 12770 High Bluff Drive, San Diego, California 92130, as its authorized agent in the United States upon
which process may be served in any such suit or proceeding, and agrees that service of process upon such authorized agent be certified
or registered mail, or by personal delivery by Federal Express, to such authorized agent shall be deemed in every respect effective service
of process upon the Company in any such suit or proceeding. The Company further agrees to take any and all actions as may be necessary
to maintain such designation and appointment of such agent in full force and effect for a period of five years from the date of this Agreement.

 

14. Counterparts. This Agreement may be executed in one
or more counterparts, each of which shall be deemed an original, and all of which together shall constitute one and the same instrument.

 

15. Construction. The section and exhibit headings herein
are for convenience only and shall not affect the construction hereof. References herein to any law, statute, ordinance, code, regulation,
rule or other requirement of any governmental authority shall be deemed to refer to such law, statute, ordinance, code, regulation, rule
or other requirement of any governmental authority as amended, reenacted, supplemented or superseded in whole or in part and in effect
from time to time and also to all rules and regulations promulgated thereunder

 

[Signature Page Follows]

 

     

     

    

Please sign and return to the Company the enclosed duplicates of this
letter whereupon this letter will become a binding agreement between the Company and the Agent in accordance with its terms.

 

	 	 	 
	Very truly yours,
	 
	APTOSE BIOSCIENCES INC.
	 	 
	By:	 /s/
    	Fletcher
    Payne
	 	 	Name:  Fletcher
    Payne
	 	 	Title:  Chief
    Financial Officer and Senior Vice President

 

Confirmed as of the date first

above mentioned.

 

	 	 	 
	JONESTRADING INSTITUTIONAL SERVICES
    LLC
	 	 
	By:	 	/s/ Burke Cook
	 	 	Name: Burke Cook
	 	 	Title: General Counsel

 

	 	 	 

 

 

     

     

    

SCHEDULE 1 

 

FORM OF PLACEMENT NOTICE 

 

No Facsimile and No Voicemail 

 

	 	 	 
	From:	 	Aptose Biosciences Inc.
	 	 
	To:	 	 
	 	 
	 	 	Attention:
	 	 
	Date:	 	[●], 20[●]
	 	 
	Subject:	 	Equity Distribution Agreement
    – Placement Notice

 

Gentlemen:

 

Pursuant to the terms and subject to the conditions contained in the
Equity Distribution Agreement between Aptose Biosciencs Inc. (“Company”), and JonesTrading Institutional Services LLC
(the “Agent”) dated December 9, 2022 (the “Agreement”), the Company hereby requests that the Agent
sell up to [●] shares of the Company’s common shares, no par value per share, at a minimum market price of $[●] per
share. Sales should begin on the date of this Placement Notice and shall continue until [●] /[all shares are sold].

 

 

     

     

    

SCHEDULE 2 

 

NOTICE PARTIES 

 

Aptose Biosciences Inc. 

 

William G. Rice

wrice@aptose.com

 

Fletcher Payne

fpayne@aptose.com

 

 

JonesTrading Institutional Services LLC 

 

Moe Cohen

moec@jonestrading.com

 

John D’Agostini

johnd@jonestrading.com

 

Bryan Turley

bturley@jonestrading.com

 

Ryan J. Gerety

ryang@jonestrading.com

 

Ryan Loforte

rloforte@jonestrading.com

 

Burke Cook

burke@jonestrading.com

 

     

     

    

SCHEDULE 3 

 

FORM OF REPRESENTATION CERTIFICATE 

PURSUANT TO SECTION 3(Q) OF THE AGREEMENT 

 

[Date]

 

JonesTrading Institutional Services LLC

211 E. 43rd Street

New York, NY 10017

 

Sir:

 

The undersigned, the duly qualified and elected [•], of Aptose
Biosciences Inc., a company incorporated under the Canada Business Corporations Act (the “Company”), does hereby certify
in such capacity and on behalf of the Company, pursuant to Section 3(q) of the Equity Distribution Agreement, dated December 9,
2022 (the “Equity Distribution Agreement”), between the Company and JonesTrading Institutional Services LLC, that to
the best of the knowledge of the undersigned:

 

(i) The representations and warranties of the Company in this Agreement
are true and correct, in all material respects, as if made at and as of the date of the certificate, and the Company has complied with
all the agreements and satisfied all the conditions on its part to be performed or satisfied at or prior to the date of the certificate;

 

(ii) No stop order or other order suspending the effectiveness of the
Registration Statement or any part thereof or any amendment thereof or the qualification of the Shares for Registration Statement, nor
suspending or preventing the use of the base prospectus, the Prospectus or any Permitted Free Writing Prospectus, has been issued, and
no proceeding for that purpose has been instituted or, to the best of the Company’s knowledge, is contemplated by the Commission
or any state or regulatory body;

 

(iii) The Shares have been duly and validly authorized by the Company
and that all corporate action required to be taken for the authorization, issuance and sale of the Shares has been validly and sufficiently
taken;

 

(iv) The signers of this certificate have carefully examined the Registration
Statement, the base prospectus, the Prospectus and any Permitted Free Writing Prospectus, and any amendments thereof or supplements thereto
(including any documents filed under the Exchange Act and deemed to be incorporated by reference into the base prospectus, the Prospectus
and any Permitted Free Writing Prospectus), (A) each part of the Registration Statement and the Prospectus, and any amendments thereof
or supplements thereto (including any documents filed under the Exchange Act and deemed to be incorporated by reference into the Prospectus)
contain, and contained when such part of the Registration Statement (or such amendment) became effective, all statements and information
required to be included therein, each part of the Registration Statement, or any amendment thereof, does not contain, and did not contain,
when such part of the Registration Statement (or such amendment) became effective, any untrue statement of a material fact or omit to
state, and did not omit to state when such part of the Registration Statement (or such amendment) became effective, any material fact
required to be stated therein or necessary to make the statements therein not misleading, and the Prospectus, as amended or supplemented,
does not include and did not include as of its date, or the time of first use within the meaning of the Securities Act Regulations, any
untrue statement of a material fact or omit to state and did not omit to state as of its date, or the time of first use within the meaning
of the Securities Act Regulations, a material fact necessary to make the statements therein, in light of the circumstances under which
they were made, not misleading,

 

(B) at no time during the period that begins on the earlier of the
date of such base prospectus, Prospectus, or Permitted Free Writing Prospectus and the date such base prospectus, Prospectus, or Permitted
Free Writing Prospectus was filed with the Commission and ends on the date of this certificate did such base prospectus, Prospectus, or
Permitted Free Writing Prospectus, as then amended or supplemented, include an untrue statement of a material fact or omit to state any
material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading,

     

     

    

(C) since the date of the Equity Distribution Agreement, there has
occurred no event required to be set forth in an amended or supplemented prospectus which has not been so set forth, and there has been
no document required to be filed under the Exchange Act that upon such filing would be deemed to be incorporated by reference into the
base prospectus, the Prospectus or any Permitted Free Writing Prospectus that has not been so filed,

 

(D) except as stated in the Prospectus or any Permitted Free Writing
Prospectus, the Company has not incurred any material liabilities or obligations, direct or contingent, or entered into any material transactions,
not in the ordinary course of business, or declared or paid any dividends or made any distribution of any kind with respect to its capital
stock, and except as disclosed in the base prospectus, the Prospectus, and any Permitted Free Writing Prospectus, there has not been any
change in the capital stock (other than a change in the number of outstanding Common Shares due to sales of Shares pursuant to the Equity
Distribution Agreement and the issuance of Common Shares upon the exercise of equity awards or warrants), or any material change in the
short term or long term debt, or any Material Adverse Effect or any development involving a prospective Material Adverse Effect (whether
or not arising in the ordinary course of business), or any loss by strike, fire, flood, earthquake, accident or other calamity, whether
or not covered by insurance, incurred by the Company, and

 

(E) except as stated in the base prospectus, the Prospectus, and any
Permitted Free Writing Prospectus, there is not pending, or, to the knowledge of the Company, threatened or contemplated, any action,
suit or proceeding to which the Company is a party before or by any court or governmental agency, authority or body, or any arbitrator,
which might result in a Material Adverse Effect.

 

Capitalized terms used herein without definition shall have the meanings
given to such terms in the Equity Distribution Agreement.

 

	 	 	 
	APTOSE BIOSCIENCES INC.
	 	 
	By:	 	 
	 	 
	Name:	 	 
	 	 
	Title:	 	 

 

 

 

     

     

    

SCHEDULE 4 

 

SUBSIDIARIES 

 

	 	 
	Name	State/Jurisdiction of Incorporation
	Aptose Biosciences U.S. Inc.	Delaware
	NuChem Pharmaceuticals Inc.	Ontario, Canada

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