Donald R. Wilson Jr. - Aug 3, 2021 Form 4 Insider Report for Aptose Biosciences Inc. (APTO)

Role: 10%+ Owner
Signature: /s/ Donald R. Wilson, Jr.
Stock symbol: APTO
Transactions as of: Aug 3, 2021
Transactions value $: -$5,794
Form type: 4
Date filed: 8/5/2021, 09:54 PM

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	APTO	Common Stock	Purchase	$151K	+57.2K	+0.64%	$2.65	8.95M	Aug 3, 2021	Through DRW Investments, LLC	F1, F2, F3
transaction	APTO	Common Stock	Sale	-$157K	-60K	-0.67%	$2.62	8.89M	Aug 5, 2021	Through DRW Investments, LLC	F3
holding	APTO	Common Stock						4.16K	Aug 3, 2021	Through DRW Commodities, LLC	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Donald R. Wilson Jr. is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id	Content
F1	The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $2.64 to $2.65, inclusive. The Reporting Persons (as defined below) undertake to provide to Aptose Biosciences Inc. (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.
F2	This Form 4 is being filed by the undersigned Donald R. Wilson Jr. ("Wilson"), as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Wilson is the sole manager of each of DRW Investments, LLC ("DRW Investments"), DRW Commodities, LLC ("DRW Commodities") and DRW Holdings, LLC ("DRW Holdings"). DRW Holdings owns 100% of the outstanding equity of each of DRW Commodities and DRW Investments. A majority of the equity of DRW Holdings is owned, directly or indirectly, by trusts for the benefit of members of Wilson's immediate family and of which Wilson serves as trustee or investment advisor.
F3	Each of the Reporting Persons disclaims beneficial ownership of any securities held by DRW Commodities or DRW Investments, except to the extent of his indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.