Atara Biotherapeutics, Inc.
SEC Filing List
ATRA CIK: 0001604464
| Form | Description | Owner/Filer | Filing Agent | Date | Actions |
|---|---|---|---|---|---|
| SCHEDULE 13D/A | Toppan Merrill/FA | 05/14/2026 | |||
| SCHEDULE 13G | SEWARD & KISSEL LLP /fa | 05/13/2026 | |||
| 8-K | Current report filing | Atara Biotherapeutics, Inc. | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 05/12/2026 | |
| 424B5 | Prospectus filed pursuant to Rule 424(b)(5) | Atara Biotherapeutics, Inc. | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 05/12/2026 | |
| 10-Q | Quarterly report pursuant to Section 13 ... | Atara Biotherapeutics, Inc. | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 05/12/2026 | |
| 3 | Initial statement of beneficial ownershi... | Ecor1 Capital, Llc | SHARTSIS FRIESE LLP /fa | 05/11/2026 | |
| 4 | Statement of changes in beneficial owner... | Ecor1 Capital, Llc | SHARTSIS FRIESE LLP /fa | 05/11/2026 | |
| SCHEDULE 13D/A | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 05/11/2026 | |||
| 4 | Statement of changes in beneficial owner... | DONNELLEY FINANCIAL SOLUTIONS /FA/ | 05/11/2026 | ||
| SCHEDULE 13G | SEWARD & KISSEL LLP /fa | 05/08/2026 | |||
| No record found. | |||||
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