Atara Biotherapeutics, Inc. — All Filings
1,000 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
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144
3
4
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424B1
424B3
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8-A12B
8-K
CERTNAS
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFR14A
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DRSLTR
EFFECT
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S-1
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S-3
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S-8
SC 13D
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SC 13G
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SCHEDULE 13D
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 3 | OWNERSHIP DOCUMENT | 0001104659-25-052410 | May 23, 2025 | May 16, 2025 |
| SCHEDULE 13D | — | 0001104659-25-052422 | May 23, 2025 | — |
| 3 | 3 | 0000950170-25-075902 | May 21, 2025 | May 16, 2025 |
| SCHEDULE 13D | — | 0000950170-25-075903 | May 21, 2025 | — |
| 4 | — | 0000905148-25-001865 | May 20, 2025 | May 16, 2025 |
| 4 | — | 0000905148-25-001866 | May 20, 2025 | May 16, 2025 |
| SCHEDULE 13D/A | — | 0001104659-25-050119 | May 16, 2025 | — |
| 8-K | 8-K | 0001193125-25-121824 | May 16, 2025 | May 14, 2025 |
| 144 | — | 0000905148-25-001837 | May 16, 2025 | — |
| 144 | — | 0000905148-25-001838 | May 16, 2025 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-050116 | May 16, 2025 | — |
| 424B5 | 424B5 | 0001193125-25-120939 | May 15, 2025 | — |
| SCHEDULE 13G/A | — | 0001104659-25-049700 | May 15, 2025 | — |
| 10-Q | 10-Q | 0000950170-25-072040 | May 15, 2025 | Mar 31, 2025 |
| 8-K | 8-K | 0001193125-25-120345 | May 15, 2025 | May 14, 2025 |
| 8-K | 8-K | 0000950170-25-069198 | May 12, 2025 | — |
| 8-K | 8-K | 0001193125-25-113811 | May 6, 2025 | May 5, 2025 |
| DEFA14A | DEFA14A | 0000950170-25-059333 | Apr 28, 2025 | — |
| DEF 14A | DEF 14A | 0000950170-25-059322 | Apr 28, 2025 | Jun 10, 2025 |
| 3 | — | 0000905148-25-001196 | Apr 10, 2025 | Mar 31, 2025 |
| 8-K | 8-K | 0000950170-25-051121 | Apr 4, 2025 | Mar 31, 2025 |
| 4 | — | 0000905148-25-001058 | Apr 2, 2025 | Mar 31, 2025 |
| 8-K | 8-K | 0001193125-25-068789 | Mar 31, 2025 | Mar 25, 2025 |
| 8-K | 8-K | 0000950170-25-035482 | Mar 7, 2025 | — |
| 10-K | 10-K | 0000950170-25-035507 | Mar 7, 2025 | Dec 31, 2024 |
| 4 | — | 0000905148-25-000865 | Mar 5, 2025 | Mar 3, 2025 |
| 4 | — | 0000905148-25-000863 | Mar 5, 2025 | Mar 3, 2025 |
| 4 | — | 0000905148-25-000864 | Mar 5, 2025 | Mar 3, 2025 |
| 144 | — | 0000905148-25-000812 | Mar 3, 2025 | — |
| 144 | — | 0000905148-25-000810 | Mar 3, 2025 | — |
| 144 | — | 0000905148-25-000811 | Mar 3, 2025 | — |
| 8-K | 8-K | 0000950170-25-030832 | Mar 3, 2025 | — |
| SCHEDULE 13G | — | 0000950170-25-015605 | Feb 6, 2025 | — |
| 4 | — | 0000905148-25-000245 | Jan 29, 2025 | Jan 27, 2025 |
| 8-K | 8-K | 0000950170-25-009225 | Jan 27, 2025 | — |
| 8-K | 8-K | 0000950170-25-006992 | Jan 21, 2025 | — |
| S-8 | S-8 | 0001193125-25-008413 | Jan 17, 2025 | — |
| 8-K | 8-K | 0000950170-25-006191 | Jan 16, 2025 | — |
| 8-K | 8-K | 0001193125-24-284167 | Dec 23, 2024 | Dec 20, 2024 |
| 4 | — | 0000905148-24-003241 | Nov 20, 2024 | Nov 18, 2024 |
| 4 | — | 0000905148-24-003242 | Nov 20, 2024 | Nov 18, 2024 |
| 4 | — | 0000905148-24-003243 | Nov 20, 2024 | Nov 18, 2024 |
| 144 | — | 0000905148-24-003232 | Nov 18, 2024 | — |
| 144 | — | 0000905148-24-003229 | Nov 18, 2024 | — |
| 144 | — | 0000905148-24-003230 | Nov 18, 2024 | — |
| 144 | — | 0000905148-24-003231 | Nov 18, 2024 | — |
| SC 13G/A | SC 13G/A | 0001104659-24-118959 | Nov 14, 2024 | — |
| SC 13G/A | — | 0000935836-24-000720 | Nov 14, 2024 | — |
| 8-K | 8-K | 0000950170-24-125334 | Nov 12, 2024 | Nov 8, 2024 |
| 10-Q | 10-Q | 0000950170-24-125389 | Nov 12, 2024 | Sep 30, 2024 |