Aptose BiosciencesAPTOF
13F holders, Q1 2026 (March 31)4holders
0new positions
0sold out
$1.67avg. 13F price*
At the end of Q1 2026, 4 institutions reported holding Aptose Biosciences Inc. (APTOF) in their 13F filings, unchanged from Q4 2025. 0 opened new positions and 0 sold out. The largest holders were DRW Securities, LLC ($33K), Gleason Group, Inc. ($7K) and Farther Finance Advisors, LLC ($17).
- Company
- Aptose Biosciences Inc.
- CUSIP
- 03835T408
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
Ownership 4 holders
| DRW Securities, LLC | 0.00% | No change | 19,761 | $33K |
| Gleason Group, Inc. | 0.00% | No change | 4,206 | $7K |
| Farther Finance Advisors, LLC | 0.00% | No change | 10 | $17 |
| 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.