Aptose BiosciencesAPTOF
13F holders, Q2 2025 (June 30)4holders −12
2new positions
15sold out
$0.86avg. 13F price*
At the end of Q2 2025, 4 institutions reported holding Aptose Biosciences Inc. (APTOF) in their 13F filings, down 12 from Q1 2025. 2 opened new positions and 15 sold out. The largest holders were DRW Securities, LLC ($17K), Gleason Group, Inc. ($4K) and TD Waterhouse Canada Inc. ($19).
- Company
- Aptose Biosciences Inc.
- CUSIP
- 03835T408
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $17K |
| Exits | 15 | $487K |
All 13F filers, Q1 2025 → Q2 2025: 23,929 shares bought and 154,552 shares sold, net −130,623 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 4 holders
| DRW Securities, LLC | 0.00% | New | 19,761 | $17K |
| Gleason Group, Inc. | 0.00% | Add +10415.0% | 4,206 | $4K |
| TD Waterhouse Canada Inc. | 0.00% | No change | 22 | $19 |
| Caldwell Sutter Capital, Inc. | 0.00% | New | 2 | $2 |
"% of holder's portfolio" is APTOF's weight in each manager's 13F, not the share of Aptose Biosciences Inc. the manager owns.