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 |
| 2026-05-07 Sale | 2026-05-11 6:45 pm | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 313,446 | $10.1 | $3,165,021 | 1,318,894 (Indirect) | View |
| 2026-01-12 Sale | 2026-01-14 9:16 pm | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 80,554 | $6.0707 | $489,019 | 1,373,182 (Indirect) | View |
| 2025-08-15 Purchase | 2025-08-19 8:15 pm | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 55,000 | $12.19 | $670,423 | 1,405,000 (Indirect) | View |
| 2025-07-17 Purchase | 2025-07-21 09:00 am | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 19,335 | $9.6391 | $186,372 | 1,350,000 (Indirect) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-03-17 Exercise | 2026-03-19 4:30 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 259,163 | $0.0001 | 1,632,340 (Indirect) | View |
| 2026-03-17 Tax Withholding | 2026-03-19 4:30 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 5 | $5.23 | 1,632,340 (Indirect) | View |
| 2026-03-17 Exercise | 2026-03-19 4:30 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 259,163 | $6.6099 | 1,632,340 (Indirect) | View |
| 2025-11-28 Exercise | 2025-12-01 5:00 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 48,737 | $0.0001 | 1,712,899 (Indirect) | View |
| 2025-11-28 Tax Withholding | 2025-12-01 5:00 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 1 | $14.03 | 1,712,899 (Indirect) | View |
| 2025-11-28 Exercise | 2025-12-01 5:00 pm | N/A N/A | Atara Biotherapeutics Inc. | ATRA | Panacea Innovation Ltd Huang James 10% Owner | 48,737 | $6.6099 | 1,712,899 (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 |