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Mailing Address 2380 CONEJO SPECTRUM ST SUITE 200 THOUSAND OAKS CA 91320
Business Address 2380 CONEJO SPECTRUM ST SUITE 200 THOUSAND OAKS CA 91320 805-623-4244
Atara Biotherapeutics, Inc. CIK#: 0001604464 (see all company filings)

SIC: 2836 - BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES)
State location: CA | State of Inc.: DE | Fiscal Year End: 1231
(CF Office: 03 Life Sciences)
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Items 1 - 40  0001604464 Filings RSS Feed
Filings Format Description Filed/Effective File/Film Number
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0000950170-24-049170 (34 Act)  Size: 378 KB
2024-04-26 001-36548
24884084
DEF 14A  Documents   Interactive Data Other definitive proxy statements
Acc-no: 0000950170-24-049147 (34 Act)  Size: 4 MB
2024-04-26 001-36548
24883956
PRE 14A  Documents   Interactive Data Other preliminary proxy statements
Acc-no: 0000950170-24-044046 (34 Act)  Size: 3 MB
2024-04-12 001-36548
24841645
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0000950170-24-038690 (34 Act)  Size: 147 KB
2024-03-29 001-36548
24804420
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0000950170-24-037644 (34 Act)  Size: 14 MB
2024-03-28 001-36548
24793778
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000950170-24-037643 (34 Act)  Size: 456 KB
2024-03-28 001-36548
24793716
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001104659-24-035552 (34 Act)  Size: 145 KB
2024-03-18 005-88393
24759173
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0000950170-24-019416 (34 Act)  Size: 148 KB
2024-02-23 001-36548
24671685
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001193125-24-036542 (34 Act)  Size: 78 KB
2024-02-14 005-88393
24640203
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001104659-24-023785 (34 Act)  Size: 75 KB
2024-02-14 005-88393
24638934
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001104659-24-020351 (34 Act)  Size: 13 KB
2024-02-13 005-88393
24627411
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000814133-24-000060 (34 Act)  Size: 4 KB
2024-02-09 005-88393
24615349
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000769993-24-000055 (34 Act)  Size: 23 KB
2024-02-06 005-88393
24600889
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001086364-24-004860 (34 Act)  Size: 13 KB
2024-01-26 005-88393
24569157
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000093751-24-000070 (34 Act)  Size: 8 KB
2024-01-22 005-88393
24548076
424B5  Documents Prospectus [Rule 424(b)(5)]
Acc-no: 0001193125-24-005223 (33 Act)  Size: 639 KB
2024-01-09 333-275256
24523595
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001567619-24-000004 (34 Act)  Size: 117 KB
2024-01-09 005-88393
24523521
8-K  Documents   Interactive Data Current report, items 1.01, 3.01, and 9.01
Acc-no: 0001193125-24-005188 (34 Act)  Size: 482 KB
2024-01-09 001-36548
24523230
8-K  Documents   Interactive Data Current report, items 2.05, 5.02, 7.01, 8.01, and 9.01
Acc-no: 0001193125-24-003945 (34 Act)  Size: 2 MB
2024-01-08 001-36548
24518449
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0001193125-24-001495 (33 Act)  Size: 82 KB
2024-01-03 333-276360
24506409
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0000950170-23-071896 (34 Act)  Size: 177 KB
2023-12-20 001-36548
231501659
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000019617-23-000584 (34 Act)  Size: 89 KB
2023-12-07 005-88393
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000935836-23-000715 (34 Act)  Size: 47 KB
2023-11-21 005-88393
231424066
424B3  Documents Prospectus [Rule 424(b)(3)]
Acc-no: 0001193125-23-279824 (33 Act)  Size: 190 KB
2023-11-17 333-275256
231419252
EFFECT  Documents Notice of Effectiveness
Acc-no: 9999999995-23-003308 (33 Act)  Size: 1 KB
2023-11-13 16:30:00 333-275256
231401274
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001193125-23-273808 (34 Act)  Size: 166 KB
2023-11-09 001-36548
231389754
CORRESP  Documents [Cover]Correspondence
Acc-no: 0001193125-23-273647 Size: 8 KB
2023-11-08
UPLOAD  Documents [Cover]SEC-generated letter
Acc-no: 0000000000-23-012129 Size: 40 KB
2023-11-06
S-3  Documents Registration statement under Securities Act of 1933
Acc-no: 0001193125-23-268364 (33 Act)  Size: 658 KB
2023-11-01 333-275256
231369284
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001193125-23-268185 (34 Act)  Size: 371 KB
2023-11-01 001-36548
231368193
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-23-057147 (34 Act)  Size: 10 MB
2023-11-01 001-36548
231366701
8-K  Documents   Interactive Data Current report, items 1.01, 2.02, 2.05, and 9.01
Acc-no: 0000950170-23-057146 (34 Act)  Size: 506 KB
2023-11-01 001-36548
231366686
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001193125-23-237762 (34 Act)  Size: 162 KB
2023-09-20 001-36548
231264947
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-23-039820 (34 Act)  Size: 10 MB
2023-08-08 001-36548
231151458
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000950170-23-039797 (34 Act)  Size: 559 KB
2023-08-08 001-36548
231151284
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0000950170-23-027257 (34 Act)  Size: 165 KB
2023-06-09 001-36548
231005270
8-K  Documents   Interactive Data Current report, items 5.02 and 5.07
Acc-no: 0000950170-23-026351 (34 Act)  Size: 205 KB
2023-06-05 001-36548
23992479
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0000950170-23-021809 (34 Act)  Size: 165 KB
2023-05-12 001-36548
23916352
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-23-018820 (34 Act)  Size: 9 MB
2023-05-08 001-36548
23897912
8-K  Documents   Interactive Data Current report, items 2.02, 5.02, and 9.01
Acc-no: 0000950170-23-018793 (34 Act)  Size: 456 KB
2023-05-08 001-36548
23897739