Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2025-05-16 Sale | 2025-05-20 4:59 pm | Atara Biotherapeutics Inc. | ATRA | Grant-Huerta Yanina Chief Accounting Officer | 2,218 | $6.763 | $15,000 | 37,067 (Direct) | View |
| 2025-05-16 Sale | 2025-05-20 4:58 pm | Atara Biotherapeutics Inc. | ATRA | Nguyen AnhCo President and CEO | 3,276 | $6.763 | $22,156 | 70,847 (Direct) | View |
| 2025-03-03 Sale | 2025-03-05 5:17 pm | Atara Biotherapeutics Inc. | ATRA | Nguyen AnhCo President and CEO | 3,331 | $6.997 | $23,307 | 74,123 (Direct) | View |
| 2025-03-03 Sale | 2025-03-05 5:17 pm | Atara Biotherapeutics Inc. | ATRA | Hyllengren Eric J EVP, CFO and COO | 1,211 | $6.997 | $8,473 | 56,231 (Direct) | View |
| 2025-03-03 Sale | 2025-03-05 5:16 pm | Atara Biotherapeutics Inc. | ATRA | Henrich Jill EVP, Chief Regulatory Officer | 1,059 | $6.997 | $7,410 | 18,679 (Direct) | View |
| 2024-11-18 Sale | 2024-11-20 6:05 pm | Atara Biotherapeutics Inc. | ATRA | Henrich Jill EVP, Chief Regulatory Officer | 1,000 | $11.2 | $11,198 | 19,378 (Direct) | View |
| 2024-11-18 Sale | 2024-11-20 6:04 pm | Atara Biotherapeutics Inc. | ATRA | Hyllengren Eric J EVP, CFO and COO | 1,364 | $11.2 | $15,274 | 23,392 (Direct) | View |
| 2024-11-18 Sale | 2024-11-20 6:04 pm | Atara Biotherapeutics Inc. | ATRA | Nguyen AnhCo President and CEO | 1,664 | $11.2 | $18,633 | 77,454 (Direct) | View |
| 2024-08-16 Sale | 2024-08-20 6:27 pm | Atara Biotherapeutics Inc. | ATRA | Touchon Pascal President and CEO | 3,038 | $6.6291 | $20,139 | 70,127 (Direct) | View |
| 2024-08-16 Sale | 2024-08-20 6:27 pm | Atara Biotherapeutics Inc. | ATRA | Nguyen AnhCo EVP, Chief Sci. & Tech Officer | 1,821 | $6.6292 | $12,072 | 34,118 (Direct) | View |
| 2024-08-16 Sale | 2024-08-20 6:27 pm | Atara Biotherapeutics Inc. | ATRA | Murugan Amar EVP, Chief Legal Officer | 1,158 | $6.6293 | $7,677 | 26,827 (Direct) | View |
| 2024-08-16 Sale | 2024-08-20 6:27 pm | Atara Biotherapeutics Inc. | ATRA | Hyllengren Eric J EVP, CFO | 1,070 | $6.6291 | $7,093 | 24,756 (Direct) | View |
| 2024-08-16 Sale | 2024-08-20 6:26 pm | Atara Biotherapeutics Inc. | ATRA | Henrich Jill EVP, Global Head RA & Quality | 963 | $6.6293 | $6,384 | 20,378 (Direct) | View |
| 2024-05-16 Sale | 2024-05-20 8:34 pm | Atara Biotherapeutics Inc. | ATRA | Touchon Pascal President and CEO | 81,506 | $0.617 | $50,289 | 1,829,146 (Direct) | View |
| 2024-05-16 Sale | 2024-05-20 8:34 pm | Atara Biotherapeutics Inc. | ATRA | Nguyen AnhCo EVP, Chief Sci. & Tech Officer | 42,899 | $0.617 | $26,469 | 898,498 (Direct) | View |
| 2024-05-16 Sale | 2024-05-20 8:33 pm | Atara Biotherapeutics Inc. | ATRA | Murugan Amar EVP, Chief Legal Officer | 32,401 | $0.617 | $19,991 | 695,120 (Direct) | View |
| 2024-05-16 Sale | 2024-05-20 8:33 pm | Atara Biotherapeutics Inc. | ATRA | Hyllengren Eric J EVP, CFO | 28,648 | $0.617 | $17,676 | 645,671 (Direct) | View |
| 2024-05-16 Sale | 2024-05-20 8:32 pm | Atara Biotherapeutics Inc. | ATRA | Henrich Jill EVP, Global Head RA & Quality | 25,750 | $0.617 | $15,888 | 529,251 (Direct) | View |
| 2024-03-04 Sale | 2024-03-06 6:19 pm | Atara Biotherapeutics Inc. | ATRA | Touchon Pascal President and CEO | 24,844 | $0.72 | $17,888 | 1,910,652 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2025-06-10 Option Award | 2025-06-12 8:39 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Gallagher Carol Giltner Director | 7,828 | $0 | 33,012 (Direct) | View |
| 2025-06-10 Option Award | 2025-06-12 8:39 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Fust Matthew K Director | 7,828 | $0 | 18,188 (Direct) | View |
| 2025-06-10 Option Award | 2025-06-12 8:39 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Touchon Pascal Director | 7,828 | $0 | 77,955 (Direct) | View |
| 2025-06-10 Option Award | 2025-06-12 8:39 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Roncarolo Maria Grazia Director | 7,828 | $0 | 17,368 (Direct) | View |
| 2025-06-10 Option Award | 2025-06-12 8:38 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | MALLIK AMEET Director | 7,828 | $0 | 16,928 (Direct) | View |
| 2025-06-10 Option Award | 2025-06-12 8:36 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | HEIDEN WILLIAM K Director | 7,828 | $0 | 22,188 (Direct) | View |
Ownership | 2025-05-23 4:01 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Redmile Group LLC Green Jeremy Director | 0 | $0 | 3,863,519 (Indirect) | View |
Ownership | 2025-05-21 6:00 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 0 | $0 | 1,638,565 (Indirect) | View |
| 2025-05-16 Option Award | 2025-05-16 6:26 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Adiumentum Capital Fund I LP Adiumentum Capital Fund I GP LLC Ciongoli Gregory Austin See remarks 10% Owner | 227,000 | $6.6099 | 1,586,588 (Direct) | View |
| 2025-05-16 Option Award | 2025-05-16 6:26 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Adiumentum Capital Fund I LP Adiumentum Capital Fund I GP LLC Ciongoli Gregory Austin See remarks 10% Owner | 75,572 | $6.61 | 1,586,588 (Direct) | View |
Ownership | 2025-04-10 7:14 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Grant-Huerta Yanina Chief Accounting Officer | 0 | $0 | 42,010 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 4:52 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Hyllengren Eric J EVP, CFO and COO | 34,050 | $0 | 57,442 (Direct) | View |
| 2024-09-09 Option Award | 2024-09-11 5:03 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Nguyen AnhCo President and CEO | 45,000 | $0 | 79,118 (Direct) | View |
Ownership | 2024-09-05 6:42 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Adiumentum Capital Fund I LP Adiumentum Capital Fund I GP LLC Ciongoli Gregory Austin Director 10% Owner | 0 | $0 | 1,284,016 (Direct) | View |
| 2024-03-31 Option Award | 2024-04-02 6:13 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Fust Matthew K Director | 150,000 | $0 | 259,000 (Direct) | View |
| 2024-03-31 Option Award | 2024-04-02 6:12 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | HEIDEN WILLIAM K Director | 150,000 | $0 | 359,000 (Direct) | View |
| 2024-03-31 Option Award | 2024-04-02 6:12 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Roncarolo Maria Grazia Director | 150,000 | $0 | 238,500 (Direct) | View |
| 2024-03-31 Option Award | 2024-04-02 6:12 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Gallagher Carol Giltner Director | 150,000 | $0 | 629,608 (Direct) | View |
| 2024-03-31 Option Award | 2024-04-02 6:11 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | MALLIK AMEET Director | 150,000 | $0 | 227,500 (Direct) | View |