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

FiledFormAccession number
Sep 4, 202640000905148-26-004085
Aug 26, 20261440000905148-26-003961
Aug 26, 202640000905148-26-003960
Aug 14, 2026SCHEDULE 13G/A0000919574-26-005481
Aug 12, 20268-K0001193125-26-346857
Aug 12, 202610-Q0001193125-26-346885
Jul 24, 2026SCHEDULE 13D/A0001104659-26-086728
Jul 24, 202640001104659-26-086733
Jul 6, 202630000905148-26-003168
Jun 26, 20268-K0001193125-26-285498
Jun 15, 202640000905148-26-002951
Jun 15, 202630000905148-26-002950
Jun 12, 2026S-80001213900-26-068286
Jun 12, 20268-K0001213900-26-068264
Jun 11, 202640000905148-26-002920
Jun 11, 202640000905148-26-002921
Jun 11, 202640000905148-26-002919
May 20, 202640000905148-26-002570
May 20, 202640000905148-26-002571
May 18, 20261440000905148-26-002507
May 18, 20261440000905148-26-002506
May 14, 2026SCHEDULE 13D/A0001104659-26-061506
May 13, 2026SCHEDULE 13G0000919574-26-002914
May 12, 2026424B50001193125-26-219518
May 12, 202610-Q0001193125-26-219482