ATARA BIOTHERAPEUTICS, INC.

ATRA ·Healthcare, Drug Manufacturers - General, United States
Financial Statements SEC Filings

SEC Filings

Form Filed Description
4 Sep 4, 2026 FORM 4
144 Aug 26, 2026
4 Aug 26, 2026 FORM 4
SCHEDULE 13G/A Aug 14, 2026
10-Q Aug 12, 2026 10-Q
8-K Aug 12, 2026 8-K
4 Jul 24, 2026 OWNERSHIP DOCUMENT
SCHEDULE 13D/A Jul 24, 2026
3 Jul 6, 2026 FORM 3
8-K Jun 26, 2026 8-K
4 Jun 15, 2026 FORM 4
3 Jun 15, 2026 FORM 3
S-8 Jun 12, 2026 REGISTRATION STATEMENT
8-K Jun 12, 2026 CURRENT REPORT
4 Jun 11, 2026 FORM 4
4 Jun 11, 2026 FORM 4
4 Jun 11, 2026 FORM 4
4 May 20, 2026
4 May 20, 2026
144 May 18, 2026
144 May 18, 2026
SCHEDULE 13D/A May 14, 2026
SCHEDULE 13G May 13, 2026
424B5 May 12, 2026 424B5
10-Q May 12, 2026 10-Q
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