Atara Biotherapeutics, Inc. SEC EDGAR Filings (CIK 0001604464)

SEC EDGAR filings, ownership reports, and insider transactions for Atara Biotherapeutics, Inc..

Symbol
ATRA on Nasdaq
Business address
1280 Rancho Conejo Blvd, Thousand Oaks, CA, 91320
State of incorporation
DE
Fiscal year end
31 December
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Atara Biotherapeutics, Inc. has filed 1,075 SEC EDGAR filings since 10 Apr 2014

Latest Filings

Recent SEC filings for Atara Biotherapeutics, Inc. including SCHEDULE 13D/A, 4, 144 and more.

Form type Document Filing Description Filing date Reporting date File number(s)
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 14 Jan 2026 005-88393
4 Open 4 document View SEC filing for 4 4 14 Jan 2026 12 Jan 2026
144 Open 144 document View SEC filing for 144 12 Jan 2026 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Jan 2026 12 Jan 2026 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 Jan 2026 30 Dec 2025 001-36548
4 Open 4 document View SEC filing for 4 4 01 Dec 2025 28 Nov 2025
4 Open 4 document View SEC filing for 4 19 Nov 2025 17 Nov 2025
4 Open 4 document View SEC filing for 4 19 Nov 2025 17 Nov 2025
144 Open 144 document View SEC filing for 144 17 Nov 2025 001-36548
144 Open 144 document View SEC filing for 144 17 Nov 2025 001-36548
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 14 Nov 2025 005-88393
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Nov 2025 005-88393
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Nov 2025 30 Sep 2025 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Nov 2025 12 Nov 2025 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Oct 2025 06 Oct 2025 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Sep 2025 02 Sep 2025 001-36548
4 Open 4 document View SEC filing for 4 20 Aug 2025 18 Aug 2025
4 Open 4 document View SEC filing for 4 20 Aug 2025 18 Aug 2025
4 Open 4 document View SEC filing for 4 4 19 Aug 2025 15 Aug 2025
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 19 Aug 2025 005-88393
144 Open 144 document View SEC filing for 144 18 Aug 2025 001-36548
144 Open 144 document View SEC filing for 144 18 Aug 2025 001-36548
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 11 Aug 2025 30 Jun 2025 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Aug 2025 11 Aug 2025 001-36548
4 Open 4 document View SEC filing for 4 4 21 Jul 2025 17 Jul 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Jul 2025 14 Jul 2025 001-36548
4 Open 4 document View SEC filing for 4 12 Jun 2025 10 Jun 2025
4 Open 4 document View SEC filing for 4 12 Jun 2025 10 Jun 2025
4 Open 4 document View SEC filing for 4 12 Jun 2025 10 Jun 2025
4 Open 4 document View SEC filing for 4 12 Jun 2025 10 Jun 2025
4 Open 4 document View SEC filing for 4 12 Jun 2025 10 Jun 2025
4 Open 4 document View SEC filing for 4 12 Jun 2025 10 Jun 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Jun 2025 10 Jun 2025 001-36548
SCHEDULE 13D Open SCHEDULE 13D document View SEC filing for SCHEDULE 13D 23 May 2025 005-88393
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 23 May 2025 16 May 2025
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 23 May 2025 16 May 2025
3 Open 3 document View SEC filing for 3 3 21 May 2025 16 May 2025
SCHEDULE 13D Open SCHEDULE 13D document View SEC filing for SCHEDULE 13D 21 May 2025 005-88393
4 Open 4 document View SEC filing for 4 20 May 2025 16 May 2025
4 Open 4 document View SEC filing for 4 20 May 2025 16 May 2025
144 Open 144 document View SEC filing for 144 16 May 2025 001-36548
144 Open 144 document View SEC filing for 144 16 May 2025 001-36548
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 16 May 2025 005-88393
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 16 May 2025 16 May 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 May 2025 14 May 2025 001-36548
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 15 May 2025 005-88393
424B5 Open 424B5 document View SEC filing for 424B5 424B5 15 May 2025 333-275256
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 May 2025 31 Mar 2025 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 May 2025 14 May 2025 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 May 2025 12 May 2025 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 May 2025 05 May 2025 001-36548
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 28 Apr 2025 001-36548
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 28 Apr 2025 10 Jun 2025 001-36548
3 Open 3 document View SEC filing for 3 10 Apr 2025 31 Mar 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Apr 2025 31 Mar 2025 001-36548
4 Open 4 document View SEC filing for 4 02 Apr 2025 31 Mar 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 31 Mar 2025 25 Mar 2025 001-36548
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 07 Mar 2025 31 Dec 2024 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Mar 2025 07 Mar 2025 001-36548
4 Open 4 document View SEC filing for 4 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 05 Mar 2025 03 Mar 2025
144 Open 144 document View SEC filing for 144 03 Mar 2025 001-36548
144 Open 144 document View SEC filing for 144 03 Mar 2025 001-36548
144 Open 144 document View SEC filing for 144 03 Mar 2025 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Mar 2025 03 Mar 2025 001-36548
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 06 Feb 2025 005-88393
4 Open 4 document View SEC filing for 4 29 Jan 2025 27 Jan 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Jan 2025 27 Jan 2025 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Jan 2025 21 Jan 2025 001-36548
S-8 Open S-8 document View SEC filing for S-8 S-8 17 Jan 2025 333-284338
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Jan 2025 16 Jan 2025 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Dec 2024 20 Dec 2024 001-36548
4 Open 4 document View SEC filing for 4 20 Nov 2024 18 Nov 2024
4 Open 4 document View SEC filing for 4 20 Nov 2024 18 Nov 2024
4 Open 4 document View SEC filing for 4 20 Nov 2024 18 Nov 2024
144 Open 144 document View SEC filing for 144 18 Nov 2024 001-36548
144 Open 144 document View SEC filing for 144 18 Nov 2024 001-36548
144 Open 144 document View SEC filing for 144 18 Nov 2024 001-36548
144 Open 144 document View SEC filing for 144 18 Nov 2024 001-36548
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Nov 2024 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 14 Nov 2024 005-88393
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Nov 2024 30 Sep 2024 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Nov 2024 08 Nov 2024 001-36548
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Nov 2024 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 04 Nov 2024 005-88393
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Oct 2024 14 Oct 2024 001-36548
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 13 Sep 2024 005-88393
4 Open 4 document View SEC filing for 4 11 Sep 2024 09 Sep 2024
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 05 Sep 2024 03 Sep 2024
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 05 Sep 2024 005-88393
424B5 Open 424B5 document View SEC filing for 424B5 424B5 04 Sep 2024 333-275256
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Sep 2024 03 Sep 2024 001-36548
4 Open 4 document View SEC filing for 4 20 Aug 2024 16 Aug 2024
4 Open 4 document View SEC filing for 4 20 Aug 2024 16 Aug 2024
4 Open 4 document View SEC filing for 4 20 Aug 2024 16 Aug 2024
4 Open 4 document View SEC filing for 4 20 Aug 2024 16 Aug 2024
4 Open 4 document View SEC filing for 4 20 Aug 2024 16 Aug 2024
144 Open 144 document View SEC filing for 144 16 Aug 2024 001-36548
144 Open 144 document View SEC filing for 144 16 Aug 2024 001-36548
144 Open 144 document View SEC filing for 144 16 Aug 2024 001-36548
144 Open 144 document View SEC filing for 144 16 Aug 2024 001-36548
144 Open 144 document View SEC filing for 144 16 Aug 2024 001-36548
4 Open 4 document View SEC filing for 4 14 Aug 2024 12 Aug 2024
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Aug 2024 30 Jun 2024 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Aug 2024 10 Aug 2024 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Jul 2024 17 Jul 2024 001-36548
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 08 Jul 2024 005-88393
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Jun 2024 20 Jun 2024 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Jun 2024 17 Jun 2024 001-36548
S-8 Open S-8 document View SEC filing for S-8 S-8 11 Jun 2024 333-280126
S-8 Open S-8 document View SEC filing for S-8 S-8 11 Jun 2024 333-280125
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Jun 2024 10 Jun 2024 001-36548
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 22 May 2024 005-88393
4 Open 4 document View SEC filing for 4 20 May 2024 16 May 2024
4 Open 4 document View SEC filing for 4 20 May 2024 16 May 2024
4 Open 4 document View SEC filing for 4 20 May 2024 16 May 2024
4 Open 4 document View SEC filing for 4 20 May 2024 16 May 2024
4 Open 4 document View SEC filing for 4 20 May 2024 16 May 2024
144 Open 144 document View SEC filing for 144 16 May 2024 001-36548
144 Open 144 document View SEC filing for 144 16 May 2024 001-36548
144 Open 144 document View SEC filing for 144 16 May 2024 001-36548
144 Open 144 document View SEC filing for 144 16 May 2024 001-36548
144 Open 144 document View SEC filing for 144 16 May 2024 001-36548
144 Open 144 document View SEC filing for 144 16 May 2024 001-36548
DEFR14A Open DEFR14A document View SEC filing for DEFR14A DEFR14A 10 May 2024 001-36548
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 May 2024 31 Mar 2024 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 May 2024 09 May 2024 001-36548
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 26 Apr 2024 001-36548
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 26 Apr 2024 10 Jun 2024 001-36548
PRE 14A Open PRE 14A document | Open XBRL data View SEC filing for PRE 14A PRE 14A 12 Apr 2024 10 Jun 2024 001-36548
4 Open 4 document View SEC filing for 4 02 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 02 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 02 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 02 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 02 Apr 2024 31 Mar 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Mar 2024 26 Mar 2024 001-36548
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 28 Mar 2024 31 Dec 2023 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 28 Mar 2024 28 Mar 2024 001-36548
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 18 Mar 2024 005-88393
4 Open 4 document View SEC filing for 4 06 Mar 2024 04 Mar 2024
4 Open 4 document View SEC filing for 4 06 Mar 2024 04 Mar 2024
4 Open 4 document View SEC filing for 4 06 Mar 2024 04 Mar 2024
4 Open 4 document View SEC filing for 4 06 Mar 2024 04 Mar 2024
4 Open 4 document View SEC filing for 4 06 Mar 2024 04 Mar 2024
144 Open 144 document View SEC filing for 144 04 Mar 2024 001-36548
144 Open 144 document View SEC filing for 144 04 Mar 2024 001-36548
144 Open 144 document View SEC filing for 144 04 Mar 2024 001-36548
144 Open 144 document View SEC filing for 144 04 Mar 2024 001-36548
144 Open 144 document View SEC filing for 144 04 Mar 2024 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Feb 2024 22 Feb 2024 001-36548
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 14 Feb 2024 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 14 Feb 2024 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 13 Feb 2024 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 09 Feb 2024 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 06 Feb 2024 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 26 Jan 2024 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 22 Jan 2024 005-88393
4 Open 4 document View SEC filing for 4 09 Jan 2024 08 Jan 2024
4 Open 4 document View SEC filing for 4 09 Jan 2024 08 Jan 2024
4 Open 4 document View SEC filing for 4 09 Jan 2024 08 Jan 2024
4 Open 4 document View SEC filing for 4 09 Jan 2024 08 Jan 2024
4 Open 4 document View SEC filing for 4 09 Jan 2024 08 Jan 2024
424B5 Open 424B5 document View SEC filing for 424B5 424B5 09 Jan 2024 333-275256
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A NONE 09 Jan 2024 005-88393
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 Jan 2024 08 Jan 2024 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Jan 2024 08 Jan 2024 001-36548
S-8 Open S-8 document View SEC filing for S-8 S-8 03 Jan 2024 333-276360
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Dec 2023 20 Dec 2023 001-36548
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A FILING ATARA BIOTHERAPEUTICS, INC. 07 Dec 2023 005-88393
SC 13G Open SC 13G document View SEC filing for SC 13G 21 Nov 2023 005-88393
4 Open 4 document View SEC filing for 4 20 Nov 2023 16 Nov 2023
4 Open 4 document View SEC filing for 4 20 Nov 2023 16 Nov 2023
4 Open 4 document View SEC filing for 4 20 Nov 2023 16 Nov 2023
4 Open 4 document View SEC filing for 4 20 Nov 2023 16 Nov 2023
4 Open 4 document View SEC filing for 4 20 Nov 2023 16 Nov 2023
4 Open 4 document View SEC filing for 4 20 Nov 2023 16 Nov 2023
424B3 Open 424B3 document View SEC filing for 424B3 424B3 17 Nov 2023 333-275256
4 Open 4 document View SEC filing for 4 15 Nov 2023 13 Nov 2023
4 Open 4 document View SEC filing for 4 14 Nov 2023 10 Nov 2023
4 Open 4 document View SEC filing for 4 14 Nov 2023 10 Nov 2023
EFFECT Open EFFECT document View SEC filing for EFFECT 13 Nov 2023 333-275256
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 Nov 2023 08 Nov 2023 001-36548
CORRESP Open CORRESP document View SEC filing for CORRESP 08 Nov 2023
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 06 Nov 2023
S-3 Open S-3 document View SEC filing for S-3 S-3 01 Nov 2023 333-275256
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Nov 2023 01 Nov 2023 001-36548
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 01 Nov 2023 30 Sep 2023 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Nov 2023 31 Oct 2023 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Sep 2023 19 Sep 2023 001-36548
4 Open 4 document View SEC filing for 4 18 Aug 2023 16 Aug 2023
4 Open 4 document View SEC filing for 4 18 Aug 2023 16 Aug 2023
4 Open 4 document View SEC filing for 4 18 Aug 2023 16 Aug 2023
4 Open 4 document View SEC filing for 4 18 Aug 2023 16 Aug 2023
4 Open 4 document View SEC filing for 4 18 Aug 2023 16 Aug 2023
4 Open 4 document View SEC filing for 4 18 Aug 2023 16 Aug 2023
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Aug 2023 30 Jun 2023 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Aug 2023 08 Aug 2023 001-36548
4 Open 4 document View SEC filing for 4 29 Jun 2023 27 Jun 2023
3 Open 3 document View SEC filing for 3 09 Jun 2023 01 Jun 2023
3 Open 3 document View SEC filing for 3 09 Jun 2023 01 Jun 2023
3 Open 3 document View SEC filing for 3 09 Jun 2023 01 Jun 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 Jun 2023 09 Jun 2023 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 Jun 2023 31 May 2023 001-36548
4 Open 4 document View SEC filing for 4 02 Jun 2023 31 May 2023
4 Open 4 document View SEC filing for 4 02 Jun 2023 31 May 2023
4 Open 4 document View SEC filing for 4 02 Jun 2023 31 May 2023
4 Open 4 document View SEC filing for 4 02 Jun 2023 31 May 2023
4 Open 4 document View SEC filing for 4 02 Jun 2023 31 May 2023
4 Open 4 document View SEC filing for 4 02 Jun 2023 31 May 2023
4 Open 4 document View SEC filing for 4 02 Jun 2023 31 May 2023
4 Open 4 document View SEC filing for 4 18 May 2023 16 May 2023
4 Open 4 document View SEC filing for 4 18 May 2023 16 May 2023
4 Open 4 document View SEC filing for 4 18 May 2023 16 May 2023
4 Open 4 document View SEC filing for 4 18 May 2023 16 May 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 May 2023 12 May 2023 001-36548
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2023 31 Mar 2023 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 May 2023 05 May 2023 001-36548
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 02 May 2023
CORRESP Open CORRESP document View SEC filing for CORRESP 21 Apr 2023
3 Open 3 document View SEC filing for 3 07 Apr 2023 01 Apr 2023
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 07 Apr 2023 001-36548
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 07 Apr 2023 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 31 Mar 2023 31 Mar 2023 001-36548
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 27 Mar 2023
PRE 14A Open PRE 14A document | Open XBRL data View SEC filing for PRE 14A PRE 14A 24 Mar 2023 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 Mar 2023 10 Mar 2023 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 06 Mar 2023 02 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 06 Mar 2023 02 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 06 Mar 2023 02 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 06 Mar 2023 02 Mar 2023
4 Open 4 document View SEC filing for 4 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 03 Mar 2023 01 Mar 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 14 Feb 2023 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A, AMENDMENT #2 14 Feb 2023 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 14 Feb 2023 005-88393
EFFECT Open EFFECT document View SEC filing for EFFECT 13 Feb 2023 333-253731
4 Open 4 document View SEC filing for 4 FORM 4 09 Feb 2023 07 Feb 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 09 Feb 2023 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 09 Feb 2023 005-88393
POS AM Open POS AM document View SEC filing for POS AM POS AM 09 Feb 2023 333-253731
S-8 Open S-8 document View SEC filing for S-8 S-8 09 Feb 2023 333-269647
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 08 Feb 2023 31 Dec 2022 001-36548
POSASR Open POSASR document View SEC filing for POSASR POSASR 08 Feb 2023 333-253731
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Feb 2023 03 Feb 2023 001-36548
SC 13G Open SC 13G document View SEC filing for SC 13G 08 Feb 2023 005-88393
SC 13G Open SC 13G document View SEC filing for SC 13G 07 Feb 2023 005-88393
SC 13G Open SC 13G document View SEC filing for SC 13G 03 Feb 2023 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 24 Jan 2023 005-88393
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A FILING ATARA BIOTHERAPEUTICS, INC. 18 Jan 2023 005-88393
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Jan 2023 30 Dec 2022 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Dec 2022 20 Dec 2022 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Dec 2022 16 Dec 2022 001-36548
3 Open 3 document View SEC filing for 3 FORM 3 16 Dec 2022 14 Dec 2022
4 Open 4 document View SEC filing for 4 18 Nov 2022 16 Nov 2022
4 Open 4 document View SEC filing for 4 18 Nov 2022 16 Nov 2022
4 Open 4 document View SEC filing for 4 18 Nov 2022 16 Nov 2022
4 Open 4 document View SEC filing for 4 18 Nov 2022 16 Nov 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Nov 2022 30 Sep 2022 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Nov 2022 08 Nov 2022 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 28 Sep 2022 28 Sep 2022 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Sep 2022 26 Sep 2022 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 18 Aug 2022 16 Aug 2022
4 Open 4 document View SEC filing for 4 FORM 4 18 Aug 2022 16 Aug 2022
4 Open 4 document View SEC filing for 4 FORM 4 18 Aug 2022 16 Aug 2022
4 Open 4 document View SEC filing for 4 FORM 4 18 Aug 2022 16 Aug 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Aug 2022 30 Jun 2022 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Aug 2022 02 Aug 2022 001-36548
S-8 Open S-8 document View SEC filing for S-8 S-8 22 Jul 2022 333-266288
4 Open 4 document View SEC filing for 4 FORM 4 29 Jun 2022 27 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 27 Jun 2022 23 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 27 Jun 2022 23 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 27 Jun 2022 23 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 27 Jun 2022 23 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 27 Jun 2022 23 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 27 Jun 2022 23 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 27 Jun 2022 23 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 27 Jun 2022 23 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 27 Jun 2022 23 Jun 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 24 Jun 2022 23 Jun 2022 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 10 Jun 2022 08 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 19 May 2022 17 May 2022
4 Open 4 document View SEC filing for 4 FORM 4 19 May 2022 17 May 2022
4 Open 4 document View SEC filing for 4 FORM 4 19 May 2022 17 May 2022
4 Open 4 document View SEC filing for 4 FORM 4 19 May 2022 17 May 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 May 2022 13 May 2022 001-36548
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 May 2022 31 Mar 2022 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 May 2022 05 May 2022 001-36548
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SC 13G Open SC 13G document View SEC filing for SC 13G FILING ATARA BIOTHERAPEUTICS, INC. 08 Jan 2021 005-88393
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Aug 2020 18 Aug 2020
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SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G HOLDINGS REPORT 01 Nov 2019 005-88393
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Oct 2019 21 Oct 2019 001-36548
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8-K Open 8-K document View SEC filing for 8-K 8-K 08 Aug 2019 08 Aug 2019 001-36548
SC 13G Open SC 13G document View SEC filing for SC 13G PRIMARY DOCUMENT 29 Jul 2019 005-88393
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Feb 2019 06 Feb 2019
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8-K Open 8-K document View SEC filing for 8-K 8-K 03 Jan 2019 02 Jan 2019 001-36548
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Aug 2018 15 Aug 2018
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 01 Aug 2018 30 Jun 2018 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K 01 Aug 2018 01 Aug 2018 001-36548
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Jun 2018 14 Jun 2018
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Jun 2018 14 Jun 2018
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8-K Open 8-K document View SEC filing for 8-K 8-K 07 Jun 2018 07 Jun 2018 001-36548
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 May 2018 14 May 2018
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 May 2018 15 May 2018
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 May 2018 15 May 2018
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 May 2018 15 May 2018
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 May 2018 15 May 2018
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2018 31 Mar 2018 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K - Q1 2018 EARNINGS RELEASE 08 May 2018 08 May 2018 001-36548
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DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 26 Apr 2018 001-36548
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SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A NONE 09 Apr 2018 005-88393
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8-K Open 8-K document View SEC filing for 8-K 8-K 02 Mar 2018 28 Feb 2018 001-36548
424B5 Open 424B5 document View SEC filing for 424B5 424B5 01 Mar 2018 333-223262
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Feb 2018 15 Feb 2018
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Feb 2018 15 Feb 2018
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Feb 2018 15 Feb 2018
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Feb 2018 15 Feb 2018
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Feb 2018 06 Feb 2018
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Feb 2018 06 Feb 2018
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Feb 2018 06 Feb 2018
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Feb 2018 06 Feb 2018
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 08 Feb 2018 06 Feb 2018 001-36548
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SC 13G Open SC 13G document View SEC filing for SC 13G PRIMARY DOCUMENT 05 Jan 2018 005-88393
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SC 13G Open SC 13G document View SEC filing for SC 13G MS INITIAL 07 Dec 2017 005-88393
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Nov 2017 30 Sep 2017 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K Q3 EARNINGS RELEASE 09 Nov 2017 09 Nov 2017 001-36548
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Aug 2017 15 Aug 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Aug 2017 15 Aug 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Aug 2017 15 Aug 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Aug 2017 15 Aug 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Aug 2017 15 Aug 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Aug 2017 15 Aug 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Aug 2017 10 Aug 2017
S-8 Open S-8 document View SEC filing for S-8 S-8 - 2017 EVERGREEN AND NASDAQ 07 Aug 2017 333-219763
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Aug 2017 30 Jun 2017 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K - Q2 2017 07 Aug 2017 07 Aug 2017 001-36548
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8-K Open 8-K document View SEC filing for 8-K 8K - 2017 ANNUAL MEETING RESULTS 08 Jun 2017 08 Jun 2017 001-36548
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 May 2017 15 May 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 May 2017 15 May 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 May 2017 15 May 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 May 2017 15 May 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 May 2017 15 May 2017
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 May 2017 31 Mar 2017 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K Q1 2017 EARNINGS RELEASE 04 May 2017 04 May 2017 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Apr 2017 25 Apr 2017
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 25 Apr 2017 001-36548
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10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 09 Mar 2017 31 Dec 2016 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K FYE 2016 09 Mar 2017 09 Mar 2017 001-36548
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SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2017 005-88393
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8-K Open 8-K document View SEC filing for 8-K FORM 8-K 10 Feb 2017 06 Feb 2017 001-36548
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Feb 2017 06 Feb 2017
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 07 Feb 2017 005-88393
8-K Open 8-K document View SEC filing for 8-K 8-K 07 Feb 2017 06 Feb 2017 001-36548
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SC 13G Open SC 13G document View SEC filing for SC 13G 30 Jan 2017 005-88393
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CT ORDER Open CT ORDER document View SEC filing for CT ORDER 19 Dec 2016 001-36548
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S-8 Open S-8 document View SEC filing for S-8 S-8 04 Nov 2016 333-214431
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 Nov 2016 30 Sep 2016 001-36548
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8-K Open 8-K document View SEC filing for 8-K 8-K 23 Sep 2016 22 Sep 2016 001-36548
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Aug 2016 15 Aug 2016
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Aug 2016 15 Aug 2016
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Aug 2016 15 Aug 2016
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Aug 2016 15 Aug 2016
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Aug 2016 30 Jun 2016 001-36548
8-K Open 8-K document View SEC filing for 8-K EARNING RELEASE Q2 2016 08 Aug 2016 08 Aug 2016 001-36548
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2016 16 May 2016
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2016 16 May 2016
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2016 16 May 2016
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2016 16 May 2016
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2016 16 May 2016
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 May 2016 31 Mar 2016 001-36548
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 May 2016 05 May 2016 001-36548
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 29 Apr 2016 001-36548
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S-8 Open S-8 document View SEC filing for S-8 S-8 04 Mar 2016 333-209961
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 04 Mar 2016 31 Dec 2015 001-36548
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SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 16 Feb 2016 005-88393
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8-K Open 8-K document View SEC filing for 8-K 8-K 16 Feb 2016 09 Feb 2016 001-36548
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A NONE 12 Feb 2016 005-88393
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SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A FOR ATARA BIOTHERAPEUTICS, INC. 19 Jan 2016 005-88393
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Jan 2016 13 Jan 2016
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4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Dec 2015 17 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Dec 2015 17 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Dec 2015 17 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Dec 2015 17 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Dec 2015 17 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Dec 2015 16 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Dec 2015 16 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Dec 2015 14 Dec 2015
8-K Open 8-K document View SEC filing for 8-K 8-K 14 Dec 2015 14 Dec 2015 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K 11 Dec 2015 09 Dec 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Dec 2015 03 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Dec 2015 30 Nov 2015
8-K Open 8-K document View SEC filing for 8-K 8-K 27 Nov 2015 23 Nov 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Nov 2015 23 Nov 2015
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 25 Nov 2015 23 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Nov 2015 23 Nov 2015
EFFECT Open EFFECT document View SEC filing for EFFECT 23 Nov 2015 333-207876
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 19 Nov 2015
CORRESP Open CORRESP document View SEC filing for CORRESP 19 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Nov 2015 16 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Nov 2015 16 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Nov 2015 16 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Nov 2015 16 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Nov 2015 16 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Nov 2015 16 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Nov 2015 16 Nov 2015
DEL AM Open DEL AM document View SEC filing for DEL AM DEL AM 10 Nov 2015 333-207876
S-3 Open S-3 document View SEC filing for S-3 S-3 09 Nov 2015 333-207876
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Nov 2015 30 Sep 2015 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K 05 Nov 2015 05 Nov 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Oct 2015 21 Oct 2015
8-K Open 8-K document View SEC filing for 8-K 8-K 16 Oct 2015 12 Oct 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Oct 2015 06 Oct 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Sep 2015 23 Sep 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Sep 2015 17 Sep 2015
8-K Open 8-K document View SEC filing for 8-K 8-K 21 Sep 2015 18 Sep 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Sep 2015 10 Sep 2015
8-K Open 8-K document View SEC filing for 8-K 8-K 14 Sep 2015 09 Sep 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Sep 2015 31 Aug 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 31 Aug 2015 27 Aug 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 24 Aug 2015 20 Aug 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Aug 2015 17 Aug 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Aug 2015 17 Aug 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Aug 2015 17 Aug 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Aug 2015 17 Aug 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Aug 2015 17 Aug 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Aug 2015 17 Aug 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Aug 2015 17 Aug 2015
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Aug 2015 30 Jun 2015 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K 06 Aug 2015 06 Aug 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Aug 2015 31 Jul 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Aug 2015 30 Jul 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Jul 2015 16 Jul 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Jul 2015 15 Jul 2015
424B1 Open 424B1 document View SEC filing for 424B1 424B1 10 Jul 2015 333-205347
EFFECT Open EFFECT document View SEC filing for EFFECT 09 Jul 2015 333-205347
S-1MEF Open S-1MEF document View SEC filing for S-1MEF S-1MEF 09 Jul 2015 333-205593
S-1/A Open S-1/A document View SEC filing for S-1/A AMENDMENT NO. 2 TO FORM S-1 09 Jul 2015 333-205347
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 07 Jul 2015 06 Jul 2015
CORRESP Open CORRESP document View SEC filing for CORRESP 07 Jul 2015
CORRESP Open CORRESP document View SEC filing for CORRESP 07 Jul 2015
S-1/A Open S-1/A document View SEC filing for S-1/A AMENDMENT NO. 1 TO FORM S-1 07 Jul 2015 333-205347
CT ORDER Open CT ORDER document View SEC filing for CT ORDER 07 Jul 2015 333-205347
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Jul 2015 01 Jul 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Jul 2015 30 Jun 2015
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 02 Jul 2015
S-1 Open S-1 document View SEC filing for S-1 S-1 29 Jun 2015 333-205347
8-K Open 8-K document View SEC filing for 8-K 8-K 29 Jun 2015 25 Jun 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Jun 2015 17 Jun 2015
CT ORDER Open CT ORDER document View SEC filing for CT ORDER 18 Jun 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jun 2015 15 Jun 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jun 2015 15 Jun 2015
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 15 Jun 2015 12 Jun 2015 001-36548
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 10 Jun 2015 005-88393
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Jun 2015 04 Jun 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Jun 2015 01 Jun 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Jun 2015 29 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 May 2015 21 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 May 2015 19 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 May 2015 19 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 May 2015 15 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 May 2015 15 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 May 2015 15 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 May 2015 15 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 May 2015 15 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 May 2015 15 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2015 14 May 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2015 14 May 2015
S-8 Open S-8 document View SEC filing for S-8 S-8 12 May 2015 333-204076
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 11 May 2015 31 Mar 2015 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K 07 May 2015 07 May 2015 001-36548
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 29 Apr 2015 001-36548
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 29 Apr 2015 25 Jun 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 24 Apr 2015 22 Apr 2015
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A NONE 09 Apr 2015 005-88393
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 01 Apr 2015 005-88393
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 30 Mar 2015 26 Mar 2015
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 30 Mar 2015 26 Mar 2015
8-K Open 8-K document View SEC filing for 8-K 8-K 27 Mar 2015 26 Mar 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Mar 2015 09 Mar 2015
10-K/A Open 10-K/A document View SEC filing for 10-K/A 10-K/A 06 Mar 2015 31 Dec 2014 001-36548
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 26 Feb 2015 31 Dec 2014 001-36548
8-K Open 8-K document View SEC filing for 8-K 8-K 26 Feb 2015 26 Feb 2015 001-36548
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Feb 2015 18 Feb 2015
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 17 Feb 2015 005-88393
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 17 Feb 2015 005-88393
SC 13G Open SC 13G document View SEC filing for SC 13G 17 Feb 2015 005-88393
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 13 Feb 2015 005-88393
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 13 Feb 2015 005-88393
SC 13G Open SC 13G document View SEC filing for SC 13G 13 Feb 2015 005-88393
424B4 Open 424B4 document View SEC filing for 424B4 424(B)(4) 12 Feb 2015 333-201728

About this filer

Atara Biotherapeutics, Inc. files with the SEC under CIK 0001604464. This page aggregates EDGAR filings and related ownership activity.

Industry: Biological Products, (No Disgnostic Substances).

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
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Updates follow new EDGAR submissions and periodic data refreshes.

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