08/20/2025 3:11 PM | Atara Biotherapeutics (Issuer) Nguyen AnhCo (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
08/20/2025 3:08 PM | Atara Biotherapeutics (Issuer) Grant-Huerta Yanina (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
08/19/2025 7:15 PM | Atara Biotherapeutics (Subject) Panacea Innovation Ltd (Filed by)
| Form SCHEDULE 13D/A | |
08/19/2025 7:15 PM | Atara Biotherapeutics (Issuer) Huang James (Reporting) Panacea Innovation Ltd (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
07/21/2025 8:00 AM | Atara Biotherapeutics (Issuer) Huang James (Reporting) Panacea Innovation Ltd (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
07/14/2025 3:03 PM | Atara Biotherapeutics (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
06/12/2025 7:38 PM | Atara Biotherapeutics (Issuer) MALLIK AMEET (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/12/2025 7:39 PM | Atara Biotherapeutics (Issuer) Roncarolo Maria Grazia (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/12/2025 7:39 PM | Atara Biotherapeutics (Issuer) Touchon Pascal (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/12/2025 7:39 PM | Atara Biotherapeutics (Issuer) Fust Matthew K (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/12/2025 7:39 PM | Atara Biotherapeutics (Issuer) Gallagher Carol Giltner (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
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06/12/2025 7:36 PM | Atara Biotherapeutics (Issuer) HEIDEN WILLIAM K (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/11/2025 3:15 PM | Atara Biotherapeutics (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
05/23/2025 3:05 PM | Atara Biotherapeutics (Subject) Redmile Group, LLC (Filed by)
| Form SCHEDULE 13D | |
05/21/2025 5:00 PM | Atara Biotherapeutics (Subject) Panacea Innovation Ltd (Filed by)
| Form SCHEDULE 13D | |
05/21/2025 5:00 PM | Atara Biotherapeutics (Issuer) Huang James (Reporting) Panacea Innovation Ltd (Reporting)
| Form 3 Initial statement of beneficial ownership of securities | |
05/16/2025 6:27 PM | Atara Biotherapeutics (Subject) Grant-Huerta Yanina (Reporting)
| Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
05/16/2025 6:32 PM | Atara Biotherapeutics (Subject) Nguyen AnhCo (Reporting)
| Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
05/16/2025 5:26 PM | Adiumentum Capital Fund I GP LLC (Reporting) Adiumentum Capital Fund I LP (Reporting) Atara Biotherapeutics (Issuer) Ciongoli Gregory Austin (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/16/2025 5:28 PM | Adiumentum Capital Fund I LP (Filed by) Atara Biotherapeutics (Subject)
| Form SCHEDULE 13D/A | |
05/16/2025 4:26 PM | Atara Biotherapeutics (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
05/15/2025 8:00 PM | Atara Biotherapeutics (Subject) Redmile Group, LLC (Filed by)
| Form SCHEDULE 13G/A | |
05/15/2025 7:41 AM | Atara Biotherapeutics (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
05/15/2025 7:45 AM | Atara Biotherapeutics (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
04/28/2025 3:15 PM | Atara Biotherapeutics (Filer)
| Form DEF 14A | |
04/10/2025 6:14 PM | Atara Biotherapeutics (Issuer) Grant-Huerta Yanina (Reporting)
| Form 3 Initial statement of beneficial ownership of securities | |
04/02/2025 6:54 PM | Atara Biotherapeutics (Issuer) Hyllengren Eric J (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/05/2025 4:16 PM | Atara Biotherapeutics (Issuer) Henrich Jill (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/05/2025 4:17 PM | Atara Biotherapeutics (Issuer) Hyllengren Eric J (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/05/2025 4:17 PM | Atara Biotherapeutics (Issuer) Nguyen AnhCo (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
03/03/2025 5:29 PM | Atara Biotherapeutics (Subject) Hyllengren Eric J (Reporting)
| Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
03/03/2025 5:30 PM | Atara Biotherapeutics (Subject) Nguyen AnhCo (Reporting)
| Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
03/03/2025 5:27 PM | Atara Biotherapeutics (Subject) Henrich Jill (Reporting)
| Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
02/06/2025 5:34 PM | Atara Biotherapeutics (Subject) Panacea Innovation Ltd (Filed by)
| Form SCHEDULE 13G | |
01/29/2025 3:52 PM | Atara Biotherapeutics (Issuer) Hyllengren Eric J (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
01/27/2025 3:30 PM | Atara Biotherapeutics (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
01/21/2025 6:36 AM | Atara Biotherapeutics (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
01/16/2025 3:05 PM | Atara Biotherapeutics (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
12/23/2024 3:00 PM | Atara Biotherapeutics (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
11/20/2024 5:04 PM | Atara Biotherapeutics (Issuer) Nguyen AnhCo (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
11/20/2024 5:04 PM | Atara Biotherapeutics (Issuer) Hyllengren Eric J (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
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11/20/2024 5:05 PM | Atara Biotherapeutics (Issuer) Henrich Jill (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
11/18/2024 4:54 PM | Atara Biotherapeutics (Subject) Henrich Jill (Reporting)
| Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
11/18/2024 4:55 PM | Atara Biotherapeutics (Subject) Hyllengren Eric J (Reporting)
| Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
11/18/2024 4:56 PM | Atara Biotherapeutics (Subject) Murugan Amar (Reporting)
| Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
11/18/2024 4:58 PM | Atara Biotherapeutics (Subject) Nguyen AnhCo (Reporting)
| Form 144 Notice of proposed sale of securities pursuant to Rule 144 | |
11/14/2024 5:10 PM | Atara Biotherapeutics (Subject) EcoR1 Capital, LLC (Filed by)
| Form SC 13G/A | |
11/12/2024 12:29 PM | Atara Biotherapeutics (Subject) VANGUARD GROUP INC (Filed by)
| Form SC 13G/A | |
11/04/2024 10:24 AM | Atara Biotherapeutics (Subject) VANGUARD GROUP INC (Filed by)
| Form SC 13G/A | |
10/15/2024 3:05 PM | Atara Biotherapeutics (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
09/11/2024 4:03 PM | Atara Biotherapeutics (Issuer) Nguyen AnhCo (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
09/05/2024 5:42 PM | Adiumentum Capital Fund I GP LLC (Reporting) Adiumentum Capital Fund I LP (Reporting) Atara Biotherapeutics (Issuer) Ciongoli Gregory Austin (Reporting)
| Form 3 Initial statement of beneficial ownership of securities | |
09/05/2024 3:07 PM | Adiumentum Capital Fund I LP (Filed by) Atara Biotherapeutics (Subject)
| Form SC 13D/A | |
09/04/2024 3:42 PM | Atara Biotherapeutics (Filer)
| Form 424B5 | |
09/03/2024 4:05 PM | Atara Biotherapeutics (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |