Aptose Biosciences Inc. - Common Shares

CUSIP: 03835T200

Q3 2023 13F Holders as of 30 Sep 2023

Holder snapshot 5 signals
Share change
+21,334
SEC-reported price per share
$2.80
Number of holders
2
Value change
+$59,717
Number of buys
1
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
2,556,332

Security key

03835T200

Report period

Q3 2023

Institutions

2

Top holders

2

Ownership snapshot

Top reported holders of 03835T200 - Aptose Biosciences Inc. - Common Shares (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Donald R. Wilson Jr.
Disclosed value leader
Donald R. Wilson Jr.
Comparable rows
0/15
Latest evidence
30 Jun 2023
3/4/5 13F Highest disclosed value: $12,885,141 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

Donald R. Wilson Jr. has the largest disclosed position value at $12.89M.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Donald R. Wilson Jr.'s linked filing trail.
Disclosed position value Top 5
Donald R. Wilson Jr. $12.89M
DRW Securities, LLC $2.75M
Nantahala Capital Management, LLC $678.5K
Carlson Capital, L.P. $494.9K
Annandale Capital, LLC $247K

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Donald R. Wilson Jr.
3/4/5
10%+ Owner
—
denominator unverified
$12,885,141
8,892,437 shares
— 03 Aug 2021
DRW Securities, LLC
13F
Company
13F
—
denominator unverified
$2,751,000
592,829 shares
— 30 Jun 2023
Nantahala Capital Management, LLC
13F
Company
13F
—
denominator unverified
$678,516
146,232 shares
— 30 Jun 2023
Carlson Capital, L.P.
13F
Company
13F
—
denominator unverified
$494,930
106,666 shares
— 30 Jun 2023
Annandale Capital, LLC
13F
Company
13F
—
denominator unverified
$247,000
53,332 shares
— 30 Jun 2023
MORGAN STANLEY
13F
Company
13F
—
denominator unverified
$218,461
47,082 shares
— 30 Jun 2023
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2023

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
2
Shares
74,758
Rows available
2
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2023 vs Q2 2023 Across Filers

Q2 2023 holders
2
Q3 2023 holders
2
Holder diff
0
Investor Q2 2023 Shares Q3 2023 Shares Share Diff Share Chg % Q2 2023 value Q3 2023 value Value change Value Chg %
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .