| SC 13G/A | 2018-04-09 | BAUPOST GROUP LLC/MA | Atara Biotherapeutics, Inc. | 6,254,632 | 14.5% | EDGAR |
| SC 13G/A | 2018-02-14 | BRIDGER MANAGEMENT, LLC | Atara Biotherapeutics, Inc. | 2,598,599 | 8.5% | EDGAR |
| SC 13G/A | 2018-02-14 | Redmile Group, LLC | Atara Biotherapeutics, Inc. | 2,815,988 | 9.2% | EDGAR |
| SC 13G/A | 2018-02-13 | MORGAN STANLEY | Atara Biotherapeutics, Inc. | 1,739,038 | 5.6% | EDGAR |
| SC 13G/A | 2018-02-13 | DAG Ventures V-QP, L.P. | Atara Biotherapeutics, Inc. | 1,802,564 | 5.9% | EDGAR |
| SC 13G/A | 2018-02-12 | FMR LLC | Atara Biotherapeutics, Inc. | 4,703,988 | 12.5% | EDGAR |
| SC 13G/A | 2018-02-09 | FMR LLC | Atara Biotherapeutics, Inc. | 1,833,868 | 6.0% | EDGAR |
| SC 13G/A | 2018-02-09 | ArrowMark Colorado Holdings LLC | Atara Biotherapeutics, Inc. | 3,146,820 | 8.4% | EDGAR |
| SC 13G/A | 2018-01-29 | BlackRock Inc. | Atara Biotherapeutics, Inc. | 1,962,261 | 6.4% | EDGAR |
| SC 13G | 2018-01-05 | Camber Capital Management LLC | Atara Biotherapeutics, Inc. | - | - | EDGAR |
| SC 13G/A | 2017-12-08 | CELGENE CORP /DE/ | Atara Biotherapeutics, Inc. | 1,154,540 | - | EDGAR |
| SC 13G | 2017-12-07 | MORGAN STANLEY | Atara Biotherapeutics, Inc. | 1,530,167 | 5.0% | EDGAR |
| SC 13G | 2017-04-21 | BRIDGER MANAGEMENT, LLC | Atara Biotherapeutics, Inc. | 1,524,191 | 5.2% | EDGAR |
| SC 13G/A | 2017-02-14 | FMR LLC | Atara Biotherapeutics, Inc. | 2,782,447 | 9.6% | EDGAR |
| SC 13G/A | 2017-02-14 | Redmile Group, LLC | Atara Biotherapeutics, Inc. | 2,670,942 | 9.2% | EDGAR |
| SC 13G | 2017-02-13 | Arrowpoint Asset Management, LLC | Atara Biotherapeutics, Inc. | 1,560,612 | 5.4% | EDGAR |
| SC 13G/A | 2017-02-07 | AMGEN INC | Atara Biotherapeutics, Inc. | 1,403,501 | - | EDGAR |
| SC 13G | 2017-01-30 | BlackRock Inc. | Atara Biotherapeutics, Inc. | 1,740,900 | 6.0% | EDGAR |
| SC 13G/A | 2016-07-11 | FMR LLC | Atara Biotherapeutics, Inc. | 3,125,407 | 10.9% | EDGAR |
| SC 13G/A | 2016-02-16 | HELU CARLOS SLIM | Atara Biotherapeutics, Inc. | 616,153 | 2.2% | EDGAR |