Bleichroeder LP 13D and 13G filings for Aptose Biosciences Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-05-13 12:28 pm Unchanged | 2025-03-31 | 13G | Aptose Biosciences Inc. APTO | Bleichroeder LP | 163,032 6.300% | 0 (Unchanged) | Filing |
| 2025-03-24 6:48 pm Sale | 2025-03-24 | 13G | Aptose Biosciences Inc. APTO | Bleichroeder LP | 163,032 7.500% | -3,586,968 (-95.65%) | Filing |
| 2025-03-21 7:14 pm Purchase | 2025-03-19 | 13G | Aptose Biosciences Inc. APTO | Bleichroeder LP | 3,750,000 6.200% | 3,625,000 (+2900.00%) | Filing |
| 2025-02-13 8:26 pm Purchase | 2024-12-31 | 13G | Aptose Biosciences Inc. APTO | Bleichroeder LP | 125,000 6.200% | 125,000 (New Position) | Filing |