Aptose Biosciences Inc. - Common Shares

CUSIP: 03835T200

Q4 2022 13F Holders as of 31 Dec 2022

Holder snapshot 6 signals
Share change
-1,679,159
SEC-reported price per share
$0.58
Number of holders
48
Value change
-$985,663
Number of buys
18
Number of sells
19
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
2,556,332

Security key

03835T200

Report period

Q4 2022

Institutions

48

Top holders

10

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
DRW SECURITIES, L.L.C.
Disclosed value leader
DRW SECURITIES, L.L.C.
Comparable rows
15/15
Latest evidence
30 Sep 2022
13F Lead comparable stake: 348% Showing 1-6 of 15 holder rows.

Quick read

DRW SECURITIES, L.L.C. leads the comparable SEC ownership view at 348%.

15 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 DRW SECURITIES, L.L.C.'s linked filing trail.
Comparable ownership Top 5
DRW SECURITIES, L.L.C. 348%
Nantahala Capital Management, LLC 269%
Carlson Capital, L.P. 79%
Sigma Planning Corp 35%
MORGAN STANLEY 30%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
DRW SECURITIES, L.L.C.
13F
Company
13F
348%
$5,291,000
8,892,437 shares
30 Sep 2022
Nantahala Capital Management, LLC
13F
Company
13F
269%
$4,099,000
6,888,822 shares
30 Sep 2022
Carlson Capital, L.P.
13F
Company
13F
79%
$1,196,000
2,010,000 shares
30 Sep 2022
Sigma Planning Corp
13F
Company
13F
35%
$535,000
899,554 shares
30 Sep 2022
MORGAN STANLEY
13F
Company
13F
30%
$460,000
772,553 shares
30 Sep 2022
Annandale Capital, LLC
13F
Company
13F
28%
$422,000
710,000 shares
30 Sep 2022
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 Q4 2022

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

Institutions
48
Shares
22,970,643
Rows available
48
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 Q4 2022 vs Q3 2022 Across Filers

Q3 2022 holders
47
Q4 2022 holders
48
Holder diff
1
Investor Q3 2022 Shares Q4 2022 Shares Share Diff Share Chg % Q3 2022 value Q4 2022 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 .