Aptose BiosciencesAPTOF
13F holders, Q3 2025 (September 30)3holders −1
0new positions
1sold out
$1.17avg. 13F price*
At the end of Q3 2025, 3 institutions reported holding Aptose Biosciences Inc. (APTOF) in their 13F filings, down 1 from Q2 2025. 0 opened new positions and 1 sold out. The largest holders were DRW Securities, LLC ($23K), Gleason Group, Inc. ($5K) and Caldwell Sutter Capital, Inc. ($2).
- Company
- Aptose Biosciences Inc.
- CUSIP
- 03835T408
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 1 | $19 |
All 13F filers, Q2 2025 → Q3 2025: 22 shares sold, net −22 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 3 holders
| DRW Securities, LLC | 0.00% | No change | 19,761 | $23K |
| Gleason Group, Inc. | 0.00% | No change | 4,206 | $5K |
| Caldwell Sutter Capital, Inc. | 0.00% | No change | 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.