Company: ATRA
Filing Date: 2025-04-10
Form Type: 3
Source: 0000905148-25-001196
Chunk: 1

Company: Atara Biotherapeutics, Inc.
Filing Date: 2025-04-10
Form: 3
Chunk 1
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                         |                      |     |     |   |
| Employee Stock Option (Right to Buy)       |                                                  $198.00 | N/A                                                                         | N/A                                                    | N/A                                                      | N/A                                                   | N/A | N/A | 04/06/2024 - 04/30/2030 | Common Stock - 800   | N/A | N/A | D |
| Employee Stock Option (Right to Buy)       |                                                   $97.75 | N/A                                                                         | N/A                                                    | N/A                                                      | N/A                                                   | N/A | N/A | 03/01/2025 - 02/28/2033 | Common Stock - 1,100 | N/A | N/A | D |
| Employee Stock Option (Right to Buy)       |                                                   $97.75 | N/A                                                                         | N/A                                                    | N/A                                                      | N/A                                                   | N/A | N/A | [F3] - 02/28/2033       | Common Stock - 550   | N/A | N/A | D |
| Employee Stock Option (Right to Buy)       |                                                   $11.00 | N/A                                                                         | N/A                                                    | N/A                                                      | N/A                                                   | N/A | N/A | 07/31/2024 - 01/05/2034 | Common Stock - 275   | N/A | N/A | D |

Remarks:

Exhibit List: Exhibit 24 - Power of Attorney

| ** Signature of Reporting Person                            
 /s/ /s/ John Chao, Attorney-in-Fact for Yanina Grant-Huerta | Date       
 04/10/2025 |

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