Aptose BiosciencesAPTOF
13F holders, Q4 2025 (December 31)4holders +1
1new positions
0sold out
$1.49avg. 13F price*
At the end of Q4 2025, 4 institutions reported holding Aptose Biosciences Inc. (APTOF) in their 13F filings, up 1 from Q3 2025. 1 opened new positions and 0 sold out. The largest holders were DRW Securities, LLC ($29K), Gleason Group, Inc. ($6K) and Farther Finance Advisors, LLC ($15).
- Company
- Aptose Biosciences Inc.
- CUSIP
- 03835T408
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $15 |
| Exits | 0 | $0 |
All 13F filers, Q3 2025 → Q4 2025: 10 shares bought, net +10 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 4 holders
| DRW Securities, LLC | 0.00% | No change | 19,761 | $29K |
| Gleason Group, Inc. | 0.00% | No change | 4,206 | $6K |
| Farther Finance Advisors, LLC | 0.00% | New | 10 | $15 |
| Caldwell Sutter Capital, Inc. | 0.00% | No change | 2 | $3 |
"% of holder's portfolio" is APTOF's weight in each manager's 13F, not the share of Aptose Biosciences Inc. the manager owns.