Atara Biotherapeutics, Inc. (ATRA) SEC Filings

Atara Biotherapeutics, Inc. (ATRA) SEC EDGAR filings (10-Q, 8-K, DEF 14A, 10-K), newest first; latest 10-Q filed 2026-08-12. Every filing links to the canonical SEC document. First-party data.

SEC filings — source: EDGAR

Filed	Form	Title
2026-08-12	10-Q	10-Q filed 2026-08-12 by Atara Biotherapeutics, Inc.
2026-08-12	8-K	8-K filed 2026-08-12 by Atara Biotherapeutics, Inc.
2026-06-26	8-K	8-K filed 2026-06-26 by Atara Biotherapeutics, Inc.
2026-06-12	8-K	8-K filed 2026-06-12 by Atara Biotherapeutics, Inc.
2026-05-12	8-K	8-K filed 2026-05-12 by Atara Biotherapeutics, Inc.
2026-05-12	10-Q	10-Q filed 2026-05-12 by Atara Biotherapeutics, Inc.
2026-05-07	8-K	8-K filed 2026-05-07 by Atara Biotherapeutics, Inc.
2026-05-01	8-K	8-K filed 2026-05-01 by Atara Biotherapeutics, Inc.
2026-04-24	DEF 14A	DEF 14A filed 2026-04-24 by Atara Biotherapeutics, Inc.
2026-03-16	10-K	10-K filed 2026-03-16 by Atara Biotherapeutics, Inc.
2026-03-16	8-K	8-K filed 2026-03-16 by Atara Biotherapeutics, Inc.
2026-03-12	8-K	8-K filed 2026-03-12 by Atara Biotherapeutics, Inc.
2026-03-03	8-K	8-K filed 2026-03-03 by Atara Biotherapeutics, Inc.
2026-02-23	8-K	8-K filed 2026-02-23 by Atara Biotherapeutics, Inc.
2026-01-12	8-K	8-K filed 2026-01-12 by Atara Biotherapeutics, Inc.
2026-01-02	8-K	8-K filed 2026-01-02 by Atara Biotherapeutics, Inc.
2025-11-12	8-K	8-K filed 2025-11-12 by Atara Biotherapeutics, Inc.
2025-11-12	10-Q	10-Q filed 2025-11-12 by Atara Biotherapeutics, Inc.
2025-10-07	8-K	8-K filed 2025-10-07 by Atara Biotherapeutics, Inc.
2025-09-04	8-K	8-K filed 2025-09-04 by Atara Biotherapeutics, Inc.
2025-08-11	8-K	8-K filed 2025-08-11 by Atara Biotherapeutics, Inc.
2025-08-11	10-Q	10-Q filed 2025-08-11 by Atara Biotherapeutics, Inc.
2025-07-14	8-K	8-K filed 2025-07-14 by Atara Biotherapeutics, Inc.
2025-06-11	8-K	8-K filed 2025-06-11 by Atara Biotherapeutics, Inc.
2025-05-16	8-K	8-K filed 2025-05-16 by Atara Biotherapeutics, Inc.
2025-05-15	8-K	8-K filed 2025-05-15 by Atara Biotherapeutics, Inc.
2025-05-15	10-Q	10-Q filed 2025-05-15 by Atara Biotherapeutics, Inc.
2025-05-12	8-K	8-K filed 2025-05-12 by Atara Biotherapeutics, Inc.
2025-05-06	8-K	8-K filed 2025-05-06 by Atara Biotherapeutics, Inc.
2025-04-28	DEF 14A	DEF 14A filed 2025-04-28 by Atara Biotherapeutics, Inc.

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Data sourced from U.S. SEC EDGAR. Not personalized investment advice.