Grant-Huerta Yanina (CIK 2064348) reported 13 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-20). Recent activity: Sell ATRA (2,414 shares), Buy ATRA (20,300 shares), Sell ATRA (24 shares), Sell ATRA (1,603 shares), Sell ATRA (377 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-20 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 2,414 | $22,036 |
| 2026-03-11 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Buy | 20,300 | $0 |
| 2026-03-04 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 24 | $122 |
| 2026-03-04 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 1,603 | $8,143 |
| 2026-03-04 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 377 | $1,915 |
| 2026-03-04 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 100 | $508 |
| 2025-11-19 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 1,645 | $21,698 |
| 2025-11-19 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 85 | $1,121 |
| 2025-11-19 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 74 | $976 |
| 2025-08-20 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 55 | $639 |
| 2025-08-20 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 86 | $998 |
| 2025-08-20 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 1,668 | $19,365 |
| 2025-05-20 | Atara Biotherapeutics, Inc. (ATRA) | Chief Accounting Officer | Sell | 2,218 | $14,994 |
Source: SEC Form 4 filings · as of 2026-05-20