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 |
2025-06-30 Purchase | 2025-07-01 4:03 pm | Prime Medicine Inc. | PRME | Liu David R. 10% Owner | 21,000 | $2.5157 | $52,830 | 20,240,945 (Direct) | View |
2025-06-23 Purchase | 2025-06-23 4:33 pm | Prime Medicine Inc. | PRME | Liu David R. 10% Owner | 21,000 | $2.162 | $45,402 | 20,219,945 (Direct) | View |
2025-06-16 Purchase | 2025-06-16 5:14 pm | Prime Medicine Inc. | PRME | Liu David R. 10% Owner | 21,000 | $1.4855 | $31,196 | 20,198,945 (Direct) | View |
2025-06-11 Purchase | 2025-06-12 4:49 pm | Prime Medicine Inc. | PRME | Liu David R. 10% Owner | 21,000 | $1.5995 | $33,590 | 20,177,945 (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 |
2023-07-21 Gift(A) | 2023-07-26 08:29 am | N/A N/A | Prime Medicine Inc. | PRME | Liu David R. 10% Owner | 1,000,000 | $0 | 20,156,945 (Direct) | View |
2023-07-21 Gift | 2023-07-25 8:15 pm | N/A N/A | Prime Medicine Inc. | PRME | Liu David R. 10% Owner | 1,000,000 | $0 | 20,156,945 (Direct) | View |
2022-10-24 Conversion | 2022-10-26 8:00 pm | N/A N/A | Prime Medicine Inc. | PRME | Liu David R. 10% Owner | 1,321,666 | $0 | 21,156,945 (Direct) | View |
Ownership | 2022-10-19 8:06 pm | N/A N/A | Prime Medicine Inc. | PRME | Liu David R. 10% Owner | 0 | $0 | 21,250,457 (Direct) | View |