Atara Biotherapeutics, Inc. (ATRA)
CIK 1604464 · operating company. SEC filings, financial statements, 10-K sections, 8-K items and insider trades for Atara Biotherapeutics, Inc..
Recent SEC filings
| Filed | Form | Accession number |
|---|---|---|
| Sep 4, 2026 | 4 | 0000905148-26-004085 |
| Aug 26, 2026 | 144 | 0000905148-26-003961 |
| Aug 26, 2026 | 4 | 0000905148-26-003960 |
| Aug 14, 2026 | SCHEDULE 13G/A | 0000919574-26-005481 |
| Aug 12, 2026 | 8-K | 0001193125-26-346857 |
| Aug 12, 2026 | 10-Q | 0001193125-26-346885 |
| Jul 24, 2026 | SCHEDULE 13D/A | 0001104659-26-086728 |
| Jul 24, 2026 | 4 | 0001104659-26-086733 |
| Jul 6, 2026 | 3 | 0000905148-26-003168 |
| Jun 26, 2026 | 8-K | 0001193125-26-285498 |
| Jun 15, 2026 | 4 | 0000905148-26-002951 |
| Jun 15, 2026 | 3 | 0000905148-26-002950 |
| Jun 12, 2026 | S-8 | 0001213900-26-068286 |
| Jun 12, 2026 | 8-K | 0001213900-26-068264 |
| Jun 11, 2026 | 4 | 0000905148-26-002920 |
| Jun 11, 2026 | 4 | 0000905148-26-002921 |
| Jun 11, 2026 | 4 | 0000905148-26-002919 |
| May 20, 2026 | 4 | 0000905148-26-002570 |
| May 20, 2026 | 4 | 0000905148-26-002571 |
| May 18, 2026 | 144 | 0000905148-26-002507 |
| May 18, 2026 | 144 | 0000905148-26-002506 |
| May 14, 2026 | SCHEDULE 13D/A | 0001104659-26-061506 |
| May 13, 2026 | SCHEDULE 13G | 0000919574-26-002914 |
| May 12, 2026 | 424B5 | 0001193125-26-219518 |
| May 12, 2026 | 10-Q | 0001193125-26-219482 |