Atara Biotherapeutics, Inc.

Symbol
ATRA on Nasdaq
Entity
Company
Business address
1280 Rancho Conejo Blvd, 91320 Thousand Oaks, CA
Phone
805-623-4211
State of incorporation
DE
Fiscal year end
December 31
Category
Non-accelerated filer
Smaller reporting company
All SEC filings
View on sec.gov
Get insider transactions for this issuer
Atara Biotherapeutics, Inc. has filed 1,060 SEC EDGAR filings since 4/10/2014

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
8-K Open Document | Data Open Filing 8-K Sep 4, 2025 Sep 2, 2025 001-36548
4 Open Document Open Filing Aug 20, 2025 Aug 18, 2025
4 Open Document Open Filing Aug 20, 2025 Aug 18, 2025
4 Open Document Open Filing 4 Aug 19, 2025 Aug 15, 2025
SCHEDULE 13D/A Open Document Open Filing Aug 19, 2025 005-88393
144 Open Document Open Filing Aug 18, 2025 001-36548
144 Open Document Open Filing Aug 18, 2025 001-36548
10-Q Open Document | Data Open Filing 10-Q Aug 11, 2025 Jun 30, 2025 001-36548
8-K Open Document | Data Open Filing 8-K Aug 11, 2025 Aug 11, 2025 001-36548
4 Open Document Open Filing 4 Jul 21, 2025 Jul 17, 2025
8-K Open Document | Data Open Filing 8-K Jul 14, 2025 Jul 14, 2025 001-36548
4 Open Document Open Filing Jun 12, 2025 Jun 10, 2025
4 Open Document Open Filing Jun 12, 2025 Jun 10, 2025
4 Open Document Open Filing Jun 12, 2025 Jun 10, 2025
4 Open Document Open Filing Jun 12, 2025 Jun 10, 2025
4 Open Document Open Filing Jun 12, 2025 Jun 10, 2025
4 Open Document Open Filing Jun 12, 2025 Jun 10, 2025
8-K Open Document | Data Open Filing 8-K Jun 11, 2025 Jun 10, 2025 001-36548
SCHEDULE 13D Open Document Open Filing May 23, 2025 005-88393
3 Open Document Open Filing OWNERSHIP DOCUMENT May 23, 2025 May 16, 2025
3 Open Document Open Filing OWNERSHIP DOCUMENT May 23, 2025 May 16, 2025
3 Open Document Open Filing 3 May 21, 2025 May 16, 2025
SCHEDULE 13D Open Document Open Filing May 21, 2025 005-88393
4 Open Document Open Filing May 20, 2025 May 16, 2025
4 Open Document Open Filing May 20, 2025 May 16, 2025
144 Open Document Open Filing May 16, 2025 001-36548
144 Open Document Open Filing May 16, 2025 001-36548
SCHEDULE 13D/A Open Document Open Filing May 16, 2025 005-88393
4 Open Document Open Filing OWNERSHIP DOCUMENT May 16, 2025 May 16, 2025
8-K Open Document | Data Open Filing 8-K May 16, 2025 May 14, 2025 001-36548
SCHEDULE 13G/A Open Document Open Filing May 15, 2025 005-88393
424B5 Open Document Open Filing 424B5 May 15, 2025 333-275256
10-Q Open Document | Data Open Filing 10-Q May 15, 2025 Mar 31, 2025 001-36548
8-K Open Document | Data Open Filing 8-K May 15, 2025 May 14, 2025 001-36548
8-K Open Document | Data Open Filing 8-K May 12, 2025 May 12, 2025 001-36548
8-K Open Document | Data Open Filing 8-K May 6, 2025 May 5, 2025 001-36548
DEFA14A Open Document Open Filing DEFA14A Apr 28, 2025 001-36548
DEF 14A Open Document | Data Open Filing DEF 14A Apr 28, 2025 Jun 10, 2025 001-36548
3 Open Document Open Filing Apr 10, 2025 Mar 31, 2025
8-K Open Document | Data Open Filing 8-K Apr 4, 2025 Mar 31, 2025 001-36548
4 Open Document Open Filing Apr 2, 2025 Mar 31, 2025
8-K Open Document | Data Open Filing 8-K Mar 31, 2025 Mar 25, 2025 001-36548
10-K Open Document | Data Open Filing 10-K Mar 7, 2025 Dec 31, 2024 001-36548
8-K Open Document | Data Open Filing 8-K Mar 7, 2025 Mar 7, 2025 001-36548
4 Open Document Open Filing Mar 5, 2025 Mar 3, 2025
4 Open Document Open Filing Mar 5, 2025 Mar 3, 2025
4 Open Document Open Filing Mar 5, 2025 Mar 3, 2025
144 Open Document Open Filing Mar 3, 2025 001-36548
144 Open Document Open Filing Mar 3, 2025 001-36548
144 Open Document Open Filing Mar 3, 2025 001-36548
8-K Open Document | Data Open Filing 8-K Mar 3, 2025 Mar 3, 2025 001-36548
SCHEDULE 13G Open Document Open Filing Feb 6, 2025 005-88393
4 Open Document Open Filing Jan 29, 2025 Jan 27, 2025
8-K Open Document | Data Open Filing 8-K Jan 27, 2025 Jan 27, 2025 001-36548
8-K Open Document | Data Open Filing 8-K Jan 21, 2025 Jan 21, 2025 001-36548
S-8 Open Document Open Filing S-8 Jan 17, 2025 333-284338
8-K Open Document | Data Open Filing 8-K Jan 16, 2025 Jan 16, 2025 001-36548
8-K Open Document | Data Open Filing 8-K Dec 23, 2024 Dec 20, 2024 001-36548
4 Open Document Open Filing Nov 20, 2024 Nov 18, 2024
4 Open Document Open Filing Nov 20, 2024 Nov 18, 2024
4 Open Document Open Filing Nov 20, 2024 Nov 18, 2024
144 Open Document Open Filing Nov 18, 2024 001-36548
144 Open Document Open Filing Nov 18, 2024 001-36548
144 Open Document Open Filing Nov 18, 2024 001-36548
144 Open Document Open Filing Nov 18, 2024 001-36548
SC 13G/A Open Document Open Filing Nov 14, 2024 005-88393
SC 13G/A Open Document Open Filing SC 13G/A Nov 14, 2024 005-88393
10-Q Open Document | Data Open Filing 10-Q Nov 12, 2024 Sep 30, 2024 001-36548
8-K Open Document | Data Open Filing 8-K Nov 12, 2024 Nov 8, 2024 001-36548
SC 13G/A Open Document Open Filing Nov 12, 2024 005-88393
SC 13G/A Open Document Open Filing Nov 4, 2024 005-88393
8-K Open Document | Data Open Filing 8-K Oct 15, 2024 Oct 14, 2024 001-36548
SC 13G/A Open Document Open Filing SC 13G/A Sep 13, 2024 005-88393
4 Open Document Open Filing Sep 11, 2024 Sep 9, 2024
3 Open Document Open Filing OWNERSHIP DOCUMENT Sep 5, 2024 Sep 3, 2024
SC 13D/A Open Document Open Filing SC 13D/A Sep 5, 2024 005-88393
424B5 Open Document Open Filing 424B5 Sep 4, 2024 333-275256
8-K Open Document | Data Open Filing 8-K Sep 3, 2024 Sep 3, 2024 001-36548
4 Open Document Open Filing Aug 20, 2024 Aug 16, 2024
4 Open Document Open Filing Aug 20, 2024 Aug 16, 2024
4 Open Document Open Filing Aug 20, 2024 Aug 16, 2024
4 Open Document Open Filing Aug 20, 2024 Aug 16, 2024
4 Open Document Open Filing Aug 20, 2024 Aug 16, 2024
144 Open Document Open Filing Aug 16, 2024 001-36548
144 Open Document Open Filing Aug 16, 2024 001-36548
144 Open Document Open Filing Aug 16, 2024 001-36548
144 Open Document Open Filing Aug 16, 2024 001-36548
144 Open Document Open Filing Aug 16, 2024 001-36548
4 Open Document Open Filing Aug 14, 2024 Aug 12, 2024
10-Q Open Document | Data Open Filing 10-Q Aug 12, 2024 Jun 30, 2024 001-36548
8-K Open Document | Data Open Filing 8-K Aug 12, 2024 Aug 10, 2024 001-36548
8-K Open Document | Data Open Filing 8-K Jul 17, 2024 Jul 17, 2024 001-36548
SC 13G/A Open Document Open Filing Jul 8, 2024 005-88393
8-K Open Document | Data Open Filing 8-K Jun 20, 2024 Jun 20, 2024 001-36548
8-K Open Document | Data Open Filing 8-K Jun 17, 2024 Jun 17, 2024 001-36548
S-8 Open Document Open Filing S-8 Jun 11, 2024 333-280126
S-8 Open Document Open Filing S-8 Jun 11, 2024 333-280125
8-K Open Document | Data Open Filing 8-K Jun 11, 2024 Jun 10, 2024 001-36548
SC 13D Open Document Open Filing SC 13D May 22, 2024 005-88393
4 Open Document Open Filing May 20, 2024 May 16, 2024
4 Open Document Open Filing May 20, 2024 May 16, 2024
4 Open Document Open Filing May 20, 2024 May 16, 2024
4 Open Document Open Filing May 20, 2024 May 16, 2024
4 Open Document Open Filing May 20, 2024 May 16, 2024
144 Open Document Open Filing May 16, 2024 001-36548
144 Open Document Open Filing May 16, 2024 001-36548
144 Open Document Open Filing May 16, 2024 001-36548
144 Open Document Open Filing May 16, 2024 001-36548
144 Open Document Open Filing May 16, 2024 001-36548
144 Open Document Open Filing May 16, 2024 001-36548
DEFR14A Open Document Open Filing DEFR14A May 10, 2024 001-36548
10-Q Open Document | Data Open Filing 10-Q May 9, 2024 Mar 31, 2024 001-36548
8-K Open Document | Data Open Filing 8-K May 9, 2024 May 9, 2024 001-36548
DEFA14A Open Document Open Filing DEFA14A Apr 26, 2024 001-36548
DEF 14A Open Document | Data Open Filing DEF 14A Apr 26, 2024 Jun 10, 2024 001-36548
PRE 14A Open Document | Data Open Filing PRE 14A Apr 12, 2024 Jun 10, 2024 001-36548
4 Open Document Open Filing Apr 2, 2024 Mar 31, 2024
4 Open Document Open Filing Apr 2, 2024 Mar 31, 2024
4 Open Document Open Filing Apr 2, 2024 Mar 31, 2024
4 Open Document Open Filing Apr 2, 2024 Mar 31, 2024
4 Open Document Open Filing Apr 2, 2024 Mar 31, 2024
8-K Open Document | Data Open Filing 8-K Mar 29, 2024 Mar 26, 2024 001-36548
10-K Open Document | Data Open Filing 10-K Mar 28, 2024 Dec 31, 2023 001-36548
8-K Open Document | Data Open Filing 8-K Mar 28, 2024 Mar 28, 2024 001-36548
SC 13G Open Document Open Filing SC 13G Mar 18, 2024 005-88393
4 Open Document Open Filing Mar 6, 2024 Mar 4, 2024
4 Open Document Open Filing Mar 6, 2024 Mar 4, 2024
4 Open Document Open Filing Mar 6, 2024 Mar 4, 2024
4 Open Document Open Filing Mar 6, 2024 Mar 4, 2024
4 Open Document Open Filing Mar 6, 2024 Mar 4, 2024
144 Open Document Open Filing Mar 4, 2024 001-36548
144 Open Document Open Filing Mar 4, 2024 001-36548
144 Open Document Open Filing Mar 4, 2024 001-36548
144 Open Document Open Filing Mar 4, 2024 001-36548
144 Open Document Open Filing Mar 4, 2024 001-36548
8-K Open Document | Data Open Filing 8-K Feb 23, 2024 Feb 22, 2024 001-36548
SC 13G/A Open Document Open Filing SC 13G/A Feb 14, 2024 005-88393
SC 13G/A Open Document Open Filing SC 13G/A Feb 14, 2024 005-88393
SC 13G/A Open Document Open Filing SCHEDULE 13G/A Feb 13, 2024 005-88393
SC 13G/A Open Document Open Filing Feb 9, 2024 005-88393
SC 13G/A Open Document Open Filing Feb 6, 2024 005-88393
SC 13G/A Open Document Open Filing Jan 26, 2024 005-88393
SC 13G/A Open Document Open Filing Jan 22, 2024 005-88393
4 Open Document Open Filing Jan 9, 2024 Jan 8, 2024
4 Open Document Open Filing Jan 9, 2024 Jan 8, 2024
4 Open Document Open Filing Jan 9, 2024 Jan 8, 2024
4 Open Document Open Filing Jan 9, 2024 Jan 8, 2024
4 Open Document Open Filing Jan 9, 2024 Jan 8, 2024
424B5 Open Document Open Filing 424B5 Jan 9, 2024 333-275256
SC 13G/A Open Document Open Filing NONE Jan 9, 2024 005-88393
8-K Open Document | Data Open Filing 8-K Jan 9, 2024 Jan 8, 2024 001-36548
8-K Open Document | Data Open Filing 8-K Jan 8, 2024 Jan 8, 2024 001-36548
S-8 Open Document Open Filing S-8 Jan 3, 2024 333-276360
8-K Open Document | Data Open Filing 8-K Dec 20, 2023 Dec 20, 2023 001-36548
SC 13G/A Open Document Open Filing FILING ATARA BIOTHERAPEUTICS, INC. Dec 7, 2023 005-88393
SC 13G Open Document Open Filing Nov 21, 2023 005-88393
4 Open Document Open Filing Nov 20, 2023 Nov 16, 2023
4 Open Document Open Filing Nov 20, 2023 Nov 16, 2023
4 Open Document Open Filing Nov 20, 2023 Nov 16, 2023
4 Open Document Open Filing Nov 20, 2023 Nov 16, 2023
4 Open Document Open Filing Nov 20, 2023 Nov 16, 2023
4 Open Document Open Filing Nov 20, 2023 Nov 16, 2023
424B3 Open Document Open Filing 424B3 Nov 17, 2023 333-275256
4 Open Document Open Filing Nov 15, 2023 Nov 13, 2023
4 Open Document Open Filing Nov 14, 2023 Nov 10, 2023
4 Open Document Open Filing Nov 14, 2023 Nov 10, 2023
EFFECT Open Document Open Filing Nov 13, 2023 333-275256
8-K Open Document | Data Open Filing 8-K Nov 9, 2023 Nov 8, 2023 001-36548
CORRESP Open Document Open Filing Nov 8, 2023
UPLOAD Open Document Open Filing Nov 6, 2023
S-3 Open Document Open Filing S-3 Nov 1, 2023 333-275256
8-K Open Document | Data Open Filing 8-K Nov 1, 2023 Nov 1, 2023 001-36548
10-Q Open Document | Data Open Filing 10-Q Nov 1, 2023 Sep 30, 2023 001-36548
8-K Open Document | Data Open Filing 8-K Nov 1, 2023 Oct 31, 2023 001-36548
8-K Open Document | Data Open Filing 8-K Sep 20, 2023 Sep 19, 2023 001-36548
4 Open Document Open Filing Aug 18, 2023 Aug 16, 2023
4 Open Document Open Filing Aug 18, 2023 Aug 16, 2023
4 Open Document Open Filing Aug 18, 2023 Aug 16, 2023
4 Open Document Open Filing Aug 18, 2023 Aug 16, 2023
4 Open Document Open Filing Aug 18, 2023 Aug 16, 2023
4 Open Document Open Filing Aug 18, 2023 Aug 16, 2023
10-Q Open Document | Data Open Filing 10-Q Aug 8, 2023 Jun 30, 2023 001-36548
8-K Open Document | Data Open Filing 8-K Aug 8, 2023 Aug 8, 2023 001-36548
4 Open Document Open Filing Jun 29, 2023 Jun 27, 2023
3 Open Document Open Filing Jun 9, 2023 Jun 1, 2023
3 Open Document Open Filing Jun 9, 2023 Jun 1, 2023
3 Open Document Open Filing Jun 9, 2023 Jun 1, 2023
8-K Open Document | Data Open Filing 8-K Jun 9, 2023 Jun 9, 2023 001-36548
8-K Open Document | Data Open Filing 8-K Jun 5, 2023 May 31, 2023 001-36548
4 Open Document Open Filing Jun 2, 2023 May 31, 2023
4 Open Document Open Filing Jun 2, 2023 May 31, 2023
4 Open Document Open Filing Jun 2, 2023 May 31, 2023
4 Open Document Open Filing Jun 2, 2023 May 31, 2023
4 Open Document Open Filing Jun 2, 2023 May 31, 2023
4 Open Document Open Filing Jun 2, 2023 May 31, 2023
4 Open Document Open Filing Jun 2, 2023 May 31, 2023
4 Open Document Open Filing May 18, 2023 May 16, 2023
4 Open Document Open Filing May 18, 2023 May 16, 2023
4 Open Document Open Filing May 18, 2023 May 16, 2023
4 Open Document Open Filing May 18, 2023 May 16, 2023
8-K Open Document | Data Open Filing 8-K May 12, 2023 May 12, 2023 001-36548
10-Q Open Document | Data Open Filing 10-Q May 8, 2023 Mar 31, 2023 001-36548
8-K Open Document | Data Open Filing 8-K May 8, 2023 May 5, 2023 001-36548
UPLOAD Open Document Open Filing May 2, 2023
CORRESP Open Document Open Filing Apr 21, 2023
3 Open Document Open Filing Apr 7, 2023 Apr 1, 2023
DEFA14A Open Document Open Filing DEFA14A Apr 7, 2023 001-36548
DEF 14A Open Document | Data Open Filing DEF 14A Apr 7, 2023 001-36548
8-K Open Document | Data Open Filing 8-K Mar 31, 2023 Mar 31, 2023 001-36548
UPLOAD Open Document Open Filing Mar 27, 2023
PRE 14A Open Document | Data Open Filing PRE 14A Mar 24, 2023 001-36548
8-K Open Document | Data Open Filing 8-K Mar 10, 2023 Mar 10, 2023 001-36548
4 Open Document Open Filing FORM 4 Mar 6, 2023 Mar 2, 2023
4 Open Document Open Filing FORM 4 Mar 6, 2023 Mar 2, 2023
4 Open Document Open Filing FORM 4 Mar 6, 2023 Mar 2, 2023
4 Open Document Open Filing FORM 4 Mar 6, 2023 Mar 2, 2023
4 Open Document Open Filing Mar 3, 2023 Mar 1, 2023
4 Open Document Open Filing Mar 3, 2023 Mar 1, 2023
4 Open Document Open Filing Mar 3, 2023 Mar 1, 2023
4 Open Document Open Filing Mar 3, 2023 Mar 1, 2023
SC 13G/A Open Document Open Filing SC 13G/A Feb 14, 2023 005-88393
SC 13G/A Open Document Open Filing SCHEDULE 13G/A, AMENDMENT #2 Feb 14, 2023 005-88393
SC 13G/A Open Document Open Filing SC 13G/A Feb 14, 2023 005-88393
EFFECT Open Document Open Filing Feb 13, 2023 333-253731
4 Open Document Open Filing FORM 4 Feb 9, 2023 Feb 7, 2023
SC 13G/A Open Document Open Filing SCHEDULE 13G/A Feb 9, 2023 005-88393
SC 13G/A Open Document Open Filing Feb 9, 2023 005-88393
POS AM Open Document Open Filing POS AM Feb 9, 2023 333-253731
S-8 Open Document Open Filing S-8 Feb 9, 2023 333-269647
10-K Open Document | Data Open Filing 10-K Feb 8, 2023 Dec 31, 2022 001-36548
POSASR Open Document Open Filing POSASR Feb 8, 2023 333-253731
8-K Open Document | Data Open Filing 8-K Feb 8, 2023 Feb 3, 2023 001-36548
SC 13G Open Document Open Filing Feb 8, 2023 005-88393
SC 13G Open Document Open Filing Feb 7, 2023 005-88393
SC 13G Open Document Open Filing Feb 3, 2023 005-88393
SC 13G/A Open Document Open Filing Jan 24, 2023 005-88393
SC 13G/A Open Document Open Filing FILING ATARA BIOTHERAPEUTICS, INC. Jan 18, 2023 005-88393
8-K Open Document | Data Open Filing 8-K Jan 6, 2023 Dec 30, 2022 001-36548
8-K Open Document | Data Open Filing 8-K Dec 20, 2022 Dec 20, 2022 001-36548
8-K Open Document | Data Open Filing 8-K Dec 19, 2022 Dec 16, 2022 001-36548
3 Open Document Open Filing FORM 3 Dec 16, 2022 Dec 14, 2022
4 Open Document Open Filing Nov 18, 2022 Nov 16, 2022
4 Open Document Open Filing Nov 18, 2022 Nov 16, 2022
4 Open Document Open Filing Nov 18, 2022 Nov 16, 2022
4 Open Document Open Filing Nov 18, 2022 Nov 16, 2022
10-Q Open Document | Data Open Filing 10-Q Nov 8, 2022 Sep 30, 2022 001-36548
8-K Open Document | Data Open Filing 8-K Nov 8, 2022 Nov 8, 2022 001-36548
8-K Open Document | Data Open Filing 8-K Sep 28, 2022 Sep 28, 2022 001-36548
8-K Open Document | Data Open Filing 8-K Sep 27, 2022 Sep 26, 2022 001-36548
4 Open Document Open Filing FORM 4 Aug 18, 2022 Aug 16, 2022
4 Open Document Open Filing FORM 4 Aug 18, 2022 Aug 16, 2022
4 Open Document Open Filing FORM 4 Aug 18, 2022 Aug 16, 2022
4 Open Document Open Filing FORM 4 Aug 18, 2022 Aug 16, 2022
10-Q Open Document | Data Open Filing 10-Q Aug 8, 2022 Jun 30, 2022 001-36548
8-K Open Document | Data Open Filing 8-K Aug 8, 2022 Aug 2, 2022 001-36548
S-8 Open Document Open Filing S-8 Jul 22, 2022 333-266288
4 Open Document Open Filing FORM 4 Jun 29, 2022 Jun 27, 2022
4 Open Document Open Filing FORM 4 Jun 27, 2022 Jun 23, 2022
4 Open Document Open Filing FORM 4 Jun 27, 2022 Jun 23, 2022
4 Open Document Open Filing FORM 4 Jun 27, 2022 Jun 23, 2022
4 Open Document Open Filing FORM 4 Jun 27, 2022 Jun 23, 2022
4 Open Document Open Filing FORM 4 Jun 27, 2022 Jun 23, 2022
4 Open Document Open Filing FORM 4 Jun 27, 2022 Jun 23, 2022
4 Open Document Open Filing FORM 4 Jun 27, 2022 Jun 23, 2022
4 Open Document Open Filing FORM 4 Jun 27, 2022 Jun 23, 2022
4 Open Document Open Filing FORM 4 Jun 27, 2022 Jun 23, 2022
8-K Open Document | Data Open Filing 8-K Jun 24, 2022 Jun 23, 2022 001-36548
4 Open Document Open Filing FORM 4 Jun 10, 2022 Jun 8, 2022
4 Open Document Open Filing FORM 4 May 19, 2022 May 17, 2022
4 Open Document Open Filing FORM 4 May 19, 2022 May 17, 2022
4 Open Document Open Filing FORM 4 May 19, 2022 May 17, 2022
4 Open Document Open Filing FORM 4 May 19, 2022 May 17, 2022
8-K Open Document | Data Open Filing 8-K May 19, 2022 May 13, 2022 001-36548
10-Q Open Document | Data Open Filing 10-Q May 5, 2022 Mar 31, 2022 001-36548
8-K Open Document | Data Open Filing 8-K May 5, 2022 May 5, 2022 001-36548
DEFA14A Open Document Open Filing DEFA14A Apr 27, 2022 001-36548
DEF 14A Open Document Open Filing DEF 14A Apr 27, 2022 Jun 23, 2022 001-36548
8-K Open Document | Data Open Filing 8-K Apr 4, 2022 Apr 4, 2022 001-36548
SC 13G/A Open Document Open Filing SC 13G/A Mar 11, 2022 005-88393
4 Open Document Open Filing FORM 4 Mar 3, 2022 Mar 1, 2022
4 Open Document Open Filing FORM 4 Mar 3, 2022 Mar 1, 2022
4 Open Document Open Filing FORM 4 Mar 3, 2022 Mar 1, 2022
4 Open Document Open Filing FORM 4 Mar 3, 2022 Mar 1, 2022
4 Open Document Open Filing FORM 4 Mar 3, 2022 Mar 1, 2022
S-8 Open Document Open Filing FORM S-8 Feb 28, 2022 333-263109
10-K Open Document | Data Open Filing 10-K Feb 28, 2022 Dec 31, 2021 001-36548
8-K Open Document | Data Open Filing 8-K Feb 28, 2022 Feb 28, 2022 001-36548
8-K Open Document | Data Open Filing 8-K Feb 18, 2022 Feb 18, 2022 001-36548
SC 13G/A Open Document Open Filing SC 13G/A Feb 15, 2022 005-88393
4 Open Document Open Filing FORM 4 Feb 14, 2022 Feb 10, 2022
SC 13G/A Open Document Open Filing SC 13G/A Feb 14, 2022 005-88393
SC 13G/A Open Document Open Filing SCHEDULE 13G (AMENDMENT NO. 1) Feb 14, 2022 005-88393
SC 13G/A Open Document Open Filing NONE Feb 9, 2022 005-88393
4 Open Document Open Filing FORM 4 Feb 9, 2022 Feb 7, 2022
SC 13G/A Open Document Open Filing SCHEDULE 13G/A Feb 9, 2022 005-88393
SC 13G Open Document Open Filing Feb 9, 2022 005-88393
SC 13G/A Open Document Open Filing Feb 3, 2022 005-88393
8-K Open Document | Data Open Filing 8-K Jan 26, 2022 Jan 26, 2022 001-36548
8-K Open Document | Data Open Filing 8-K Jan 10, 2022 Jan 10, 2022 001-36548
SC 13G/A Open Document Open Filing FILING ATARA BIOTHERAPEUTICS, INC. Jan 7, 2022 005-88393
4 Open Document Open Filing FORM 4 Jan 5, 2022 Jan 3, 2022
SC 13G Open Document Open Filing SCHEDULE 13G Dec 21, 2021 005-88393
4 Open Document Open Filing FORM 4 Dec 3, 2021 Dec 1, 2021
8-K Open Document | Data Open Filing 8-K Nov 26, 2021 Nov 26, 2021 001-36548
424B5 Open Document Open Filing 424B5 Nov 26, 2021 333-253731
4 Open Document Open Filing FORM 4 Nov 18, 2021 Nov 16, 2021
4 Open Document Open Filing FORM 4 Nov 18, 2021 Nov 16, 2021
4 Open Document Open Filing FORM 4 Nov 18, 2021 Nov 16, 2021
4 Open Document Open Filing FORM 4 Nov 18, 2021 Nov 16, 2021
4 Open Document Open Filing FORM 4 Nov 18, 2021 Nov 16, 2021
4 Open Document Open Filing FORM 4 Nov 17, 2021 Nov 15, 2021
4 Open Document Open Filing FORM 4 Nov 5, 2021 Nov 4, 2021
4 Open Document Open Filing FORM 4 Nov 4, 2021 Nov 2, 2021
10-Q Open Document | Data Open Filing 10-Q Nov 4, 2021 Sep 30, 2021 001-36548
8-K Open Document | Data Open Filing 8-K Nov 4, 2021 Nov 4, 2021 001-36548
8-K Open Document | Data Open Filing 8-K Oct 4, 2021 Oct 2, 2021 001-36548
S-8 Open Document Open Filing S-8 Sep 29, 2021 333-259882
4 Open Document Open Filing FORM 4 Sep 24, 2021 Sep 22, 2021
4 Open Document Open Filing FORM 4 Sep 17, 2021 Sep 15, 2021
4 Open Document Open Filing FORM 4 Aug 31, 2021 Aug 30, 2021
4 Open Document Open Filing FORM 4 Aug 19, 2021 Aug 17, 2021
4 Open Document Open Filing FORM 4 Aug 19, 2021 Aug 17, 2021
4 Open Document Open Filing FORM 4 Aug 19, 2021 Aug 17, 2021
4 Open Document Open Filing FORM 4 Aug 19, 2021 Aug 17, 2021
4 Open Document Open Filing FORM 4 Aug 19, 2021 Aug 17, 2021
4 Open Document Open Filing FORM 4 Aug 10, 2021 Aug 9, 2021
3 Open Document Open Filing FORM 3 Aug 10, 2021 Aug 9, 2021
8-K Open Document | Data Open Filing 8-K Aug 10, 2021 Aug 9, 2021 001-36548
10-Q Open Document | Data Open Filing 10-Q Aug 9, 2021 Jun 30, 2021 001-36548
8-K Open Document | Data Open Filing 8-K Aug 9, 2021 Aug 9, 2021 001-36548
4 Open Document Open Filing FORM 4 Jun 29, 2021 Jun 25, 2021
4 Open Document Open Filing FORM 4 Jun 15, 2021 Jun 11, 2021
4 Open Document Open Filing FORM 4 Jun 9, 2021 Jun 8, 2021
4 Open Document Open Filing FORM 4 Jun 9, 2021 Jun 8, 2021
4 Open Document Open Filing FORM 4 Jun 9, 2021 Jun 8, 2021
4 Open Document Open Filing FORM 4 Jun 9, 2021 Jun 8, 2021
4 Open Document Open Filing FORM 4 Jun 9, 2021 Jun 8, 2021
4 Open Document Open Filing FORM 4 Jun 9, 2021 Jun 8, 2021
4 Open Document Open Filing FORM 4 Jun 9, 2021 Jun 8, 2021
4 Open Document Open Filing FORM 4 Jun 9, 2021 Jun 8, 2021
8-K Open Document | Data Open Filing 8-K Jun 9, 2021 Jun 8, 2021 001-36548
4 Open Document Open Filing FORM 4 Jun 9, 2021 Jun 8, 2021
DEFA14A Open Document Open Filing DEFA14A May 28, 2021 001-36548
4 Open Document Open Filing FORM 4 SUBMISSION May 20, 2021 May 18, 2021
4 Open Document Open Filing FORM 4 SUBMISSION May 20, 2021 May 18, 2021
4 Open Document Open Filing FORM 4 SUBMISSION May 20, 2021 May 18, 2021
4 Open Document Open Filing FORM 4 SUBMISSION May 20, 2021 May 18, 2021
4 Open Document Open Filing FORM 4 SUBMISSION May 20, 2021 May 18, 2021
4 Open Document Open Filing FORM 4 SUBMISSION May 20, 2021 May 18, 2021
4 Open Document Open Filing FORM 4 SUBMISSION May 17, 2021 May 17, 2021
10-Q Open Document | Data Open Filing 10-Q May 4, 2021 Mar 31, 2021 001-36548
8-K Open Document | Data Open Filing 8-K May 4, 2021 May 4, 2021 001-36548
DEFA14A Open Document Open Filing DEFA14A Apr 22, 2021 001-36548
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4 Open Document Open Filing FORM 4 SUBMISSION Aug 17, 2017 Aug 15, 2017
4 Open Document Open Filing FORM 4 SUBMISSION Aug 17, 2017 Aug 15, 2017
4 Open Document Open Filing FORM 4 SUBMISSION Aug 17, 2017 Aug 15, 2017
4 Open Document Open Filing FORM 4 SUBMISSION Aug 17, 2017 Aug 15, 2017
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SC 13G/A Open Document Open Filing SC 13G/A Feb 16, 2016 005-88393
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SC 13G Open Document Open Filing Feb 12, 2016 005-88393
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4 Open Document Open Filing FORM 4 SUBMISSION Nov 25, 2015 Nov 23, 2015
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CORRESP Open Document Open Filing Nov 19, 2015
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4 Open Document Open Filing FORM 4 SUBMISSION Nov 18, 2015 Nov 16, 2015
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8-K Open Document Open Filing 8-K Sep 14, 2015 Sep 9, 2015 001-36548
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424B1 Open Document Open Filing 424B1 Jul 10, 2015 333-205347
EFFECT Open Document Open Filing Jul 9, 2015 333-205347
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CORRESP Open Document Open Filing Jul 7, 2015
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CT ORDER Open Document Open Filing Jul 7, 2015 333-205347
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UPLOAD Open Document Open Filing Jul 2, 2015
S-1 Open Document Open Filing S-1 Jun 29, 2015 333-205347
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3 Open Document Open Filing FORM 3 SUBMISSION Mar 30, 2015 Mar 26, 2015
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SC 13G Open Document Open Filing SC 13G Feb 17, 2015 005-88393
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SC 13G Open Document Open Filing SC 13G Feb 13, 2015 005-88393
SC 13G Open Document Open Filing Feb 13, 2015 005-88393
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S-1MEF Open Document Open Filing S-1MEF Feb 11, 2015 333-202044
S-1/A Open Document Open Filing AMENDMENT NO. 1 TO FORM S-1 Feb 9, 2015 333-201728
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