Adiumentum Capital Fund I LP 13D and 13G filings for Atara Biotherapeutics, 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 |
| 2025-05-16 6:28 pm Purchase | 2025-05-14 | 13D | Atara Biotherapeutics, Inc. ATRA | Adiumentum Capital Fund I LP | 1,370,081 19.990% | 235,759 (+20.78%) | Filing |
| 2024-09-05 4:07 pm Purchase | 2024-09-03 | 13D | Atara Biotherapeutics, Inc. ATRA | Adiumentum Capital Fund I LP | 1,134,322 19.990% | 811,685 (+251.58%) | Filing |
| 2024-05-22 6:18 pm Purchase | 2024-05-15 | 13D | Atara Biotherapeutics, Inc. ATRA | Adiumentum Capital Fund I LP | 322,637 6.700% | 322,637 (New Position) | Filing |