Who owns Aptose Biosciences Inc., from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
Bleichroeder LP: 1.6% · 41,666 shares — Bleichroeder Holdings LLC: 1.6% · 41,666 shares — Andrew Gundlach: 1.6% · 41,666 shares
Hanmi Pharmaceutical Co., Ltd.: 19.9% · 508,710 shares
1 more 5% stakes behind a free account
See every investor who has disclosed crossing 5% of Aptose Biosciences Inc..
Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Aptose Biosciences Inc. they hold. Together these 34 managers report 234.21% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC | $776K | 1,888,000 | 0.01% | 73.97% | September 30, 2024 |
| Bleichroeder LP | $563K | 2,500,000 | 0.14% | 97.95% | December 31, 2024 |
32 more institutional holders behind a free account
See every manager reporting Aptose Biosciences Inc., how much of the company they hold, and how big the position is inside their own portfolio.
Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 2 funds hold 0.11% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| Fidelity Nasdaq Composite Index Fund | $882 | 0.00% | 0.08% | August 31, 2024 |
| The Canadian Small Company Series | $443 | 0.00% | 0.03% | July 31, 2024 |
Loading...
