6-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2018

Commission File Number: 001-32001 

Aptose Biosciences Inc.
(Translation of registrant's name into English)

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

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F [   ]      Form 40-F [ X ]

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  

On October 23, 2018, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

(c) Exhibit 99.1. Press release dated October 23, 2018

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Aptose Biosciences Inc.
	(Registrant)
Date: October 23, 2018	/s/ Gregory K. Chow
	Gregory K. Chow
	Senior Vice President and Chief Financial Officer

EX-99.1

EXHIBIT 99.1

Aptose to Release Third Quarter Ended September 30, 2018 Financial Results on November 6, 2018

Conference Call to Be Held Wednesday, November 7, 2018

SAN DIEGO and TORONTO, Oct. 23, 2018 (GLOBE NEWSWIRE) -- Aptose Biosciences Inc. (NASDAQ: APTO; TSX: APS), a clinical-stage company developing highly differentiated therapeutics targeting the underlying mechanisms of cancer, will release its financial results for the quarter ended September 30, 2018 on Tuesday, November 6, 2018 after market hours and will hold a conference call Wednesday, November 7, 2018 at 8:00 am Eastern time. 

Conference Call & Webcast:
Wednesday, November 7, 2018 @ 8:00 am Eastern time
Toll-Free:	(844) 882-7834
International:	(574) 990-9707
Passcode:	6967538
Webcast:	https://edge.media-server.com/m6/p/tbu8mvyy
Replay available through November 14, 2018
Toll-Free:	(855) 859-2056
Replay Passcode:	6967538

The live conference call can also be accessed through a link on the Investor Relations section of Aptose’s website at ir.aptose.com.  Please log onto the webcast at least 10 minutes prior to the start of the call to ensure time for any software downloads that may be required.  An archived version of the webcast along with a transcript will be available on the company’s website for 30 days.

The press release, the financial statements and the management’s discussion and analysis for the quarter ended September 30, 2018 will be available on SEDAR at www.sedar.com and EDGAR at www.sec.gov/edgar.shtml

About Aptose Biosciences Inc.

Aptose Biosciences is a clinical-stage biotechnology company committed to developing personalized therapies addressing unmet medical needs in oncology, with an initial focus on hematology. The company's small molecule cancer therapeutics pipeline includes products designed to provide single agent efficacy and to enhance the efficacy of other anti-cancer therapies and regimens without overlapping toxicities. APTO-253, the only clinical stage inhibitor of MYC oncogene expression, is in a Phase 1b clinical trial for the treatment of patients with relapsed or refractory acute myeloid leukemia (AML) or high risk MDS. CG-806 is an oral, first-in-class pan-FLT3/pan-BTK multi-cluster kinase inhibitor being developed to treat AML and certain B cell malignancies.  For further information, please visit www.aptose.com.

For further information, please contact:                            

Aptose Biosciences Greg Chow, CFO 647-479-9828 Email: gchow@aptose.com
SMP Communications Susan Pietropaolo 201-923-2049 susan@smpcommunications.com	LifeSci Advisors Michael Wood Managing Director 646-597-6983 mwood@lifesciadvisors.com