ATRA News — Page 2
Official issuer or fund updates, exact SEC current reports, and large established publisher coverage, newest first. Every lawfully retained item remains in the corpus; each public page contains at most 100 rows. Headlines open the exact source; summaries are concise descriptions and not investment recommendations. Captured 2026-08-31.
| Date | Type | Publisher | Headline | Summary |
|---|---|---|---|---|
| 2019-04-03 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2019-02-26 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2019-01-03 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2018-11-06 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2018-09-12 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2018-08-01 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2018-06-18 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.07. |
| 2018-06-07 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2018-05-08 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2018-03-02 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 8.01,9.01. |
| 2018-02-27 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2018-02-21 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2018-02-08 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2018-01-04 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 8.01,9.01. |
| 2017-12-29 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 8.01,9.01. |
| 2017-11-09 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2017-08-07 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2017-06-08 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.07. |
| 2017-05-04 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2017-04-20 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 8.01,9.01. |
| 2017-03-27 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 1.01,9.01. |
| 2017-03-09 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2017-02-10 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2017-02-07 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 1.01. |
| 2016-11-04 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2016-09-23 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2016-08-08 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2016-06-24 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.07. |
| 2016-05-05 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2016-03-03 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2016-02-16 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2015-12-14 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 7.01,9.01. |
| 2015-12-11 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 1.01. |
| 2015-11-27 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2015-11-05 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2015-10-16 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2015-09-21 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2015-09-14 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 1.01. |
| 2015-08-06 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2015-06-29 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.07. |
| 2015-06-15 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 1.01. |
| 2015-05-07 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2015-03-27 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2015-02-26 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2015-01-21 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 5.02. |
| 2014-11-12 | Current report | SEC filing | Atara Biotherapeutics, Inc. filed Form 8-K | Atara Biotherapeutics, Inc. filed Form 8-K covering items 2.02,9.01. |