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 |
| 2022-08-15 Sale | 2022-08-15 4:16 pm | Radius Health Inc. | RDUS | Dere Willard H Director | 1,895 | $10 | $18,950 | 0 (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 |
| 2025-06-12 Option Award | 2025-06-13 5:02 pm | N/A 2035-06-11 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 61,500 | $0 | 61,500 (Direct) | View |
| 2025-06-10 Option Award | 2025-06-12 4:36 pm | N/A 2035-06-09 | Metagenomi Inc. | MGX | Dere Willard H Director | 21,000 | $0 | 21,000 (Direct) | View |
| 2025-05-20 Option Award | 2025-05-22 4:54 pm | N/A N/A | BIOMARIN PHARMACEUTICAL INC | BMRN | Dere Willard H Director | 6,650 | $0 | 38,950 (Direct) | View |
| 2025-04-10 Option Award | 2025-04-11 4:05 pm | N/A 2035-04-09 | Seres Therapeutics Inc. | MCRB | Dere Willard H Director | 100,000 | $0 | 100,000 (Direct) | View |
| 2024-06-11 Option Award | 2024-06-12 4:51 pm | N/A 2034-06-10 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 55,000 | $0 | 55,000 (Direct) | View |
| 2024-05-21 Option Award | 2024-05-23 5:20 pm | N/A N/A | BIOMARIN PHARMACEUTICAL INC | BMRN | Dere Willard H Director | 4,720 | $0 | 32,300 (Direct) | View |
| 2024-04-04 Option Award | 2024-04-08 4:45 pm | N/A 2034-04-03 | Seres Therapeutics Inc. | MCRB | Dere Willard H Director | 60,000 | $0 | 60,000 (Direct) | View |
| 2024-04-01 Option Award | 2024-04-03 8:11 pm | N/A 2034-03-31 | Metagenomi Inc. | MGX | Dere Willard H Director | 78,636 | $0 | 78,636 (Direct) | View |
Ownership | 2024-02-08 7:11 pm | N/A N/A | Metagenomi Inc. | MGX | Dere Willard H Director | 0 | $0 | 51,275 (Direct) | View |
| 2024-01-02 Option Award | 2024-01-04 4:11 pm | N/A N/A | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 6,112 | $0 | 39,182 (Direct) | View |
| 2023-10-02 Option Award | 2023-10-04 4:30 pm | N/A N/A | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 11,011 | $0 | 33,070 (Direct) | View |
| 2023-07-03 Option Award | 2023-07-06 4:19 pm | N/A N/A | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 4,217 | $0 | 22,059 (Direct) | View |
| 2023-06-22 Option Award | 2023-06-23 5:21 pm | N/A 2033-06-21 | Seres Therapeutics Inc. | MCRB | Dere Willard H Director | 35,000 | $0 | 35,000 (Direct) | View |
| 2023-06-08 Option Award | 2023-06-12 4:13 pm | N/A 2033-06-07 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 32,822 | $0 | 36,197 (Direct) | View |
| 2023-05-23 Option Award | 2023-05-24 6:24 pm | N/A N/A | BIOMARIN PHARMACEUTICAL INC | BMRN | Dere Willard H Director | 4,190 | $0 | 27,580 (Direct) | View |
| 2023-04-03 Option Award | 2023-04-05 5:12 pm | N/A N/A | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 3,375 | $0 | 3,375 (Direct) | View |
| 2022-08-15 Equity Swap | 2022-08-15 4:16 pm | N/A N/A | Radius Health Inc. | RDUS | Dere Willard H Director | 21,300 | $10 | 0 (Direct) | View |
| 2022-07-05 Option Award | 2022-07-06 7:22 pm | N/A N/A | Seres Therapeutics Inc. | MCRB | Dere Willard H Director | 31,746 | $3.15 | 31,746 (Direct) | View |
| 2022-06-22 Option Award | 2022-06-24 4:30 pm | N/A 2032-06-21 | Seres Therapeutics Inc. | MCRB | Dere Willard H Director | 35,000 | $0 | 35,000 (Direct) | View |
| 2022-06-09 Option Award | 2022-06-10 4:20 pm | N/A 2032-06-08 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 45,000 | $0 | 45,000 (Direct) | View |
| 2022-05-24 Option Award | 2022-05-26 8:29 pm | N/A N/A | BIOMARIN PHARMACEUTICAL INC | BMRN | Dere Willard H Director | 4,980 | $0 | 23,390 (Direct) | View |
| 2022-01-14 Option Award | 2022-01-25 4:30 pm | N/A 2032-01-14 | Radius Health Inc. | RDUS | Dere Willard H Director | 15,500 | $0 | 33,195 (Direct) | View |
| 2022-01-03 Option Award | 2022-01-05 5:01 pm | N/A 2032-01-02 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 12,847 | $0 | 12,847 (Direct) | View |
| 2021-06-16 Option Award | 2021-06-21 4:30 pm | N/A 2031-06-15 | Seres Therapeutics Inc. | MCRB | Dere Willard H Director | 23,000 | $0 | 23,000 (Direct) | View |
| 2021-06-11 Option Award | 2021-06-15 6:03 pm | N/A 2031-06-10 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 25,050 | $0 | 25,050 (Direct) | View |
| 2021-05-25 Option Award | 2021-05-27 5:20 pm | N/A N/A | BIOMARIN PHARMACEUTICAL INC | BMRN | Dere Willard H Director | 5,120 | $0 | 18,410 (Direct) | View |
| 2021-02-22 Option Award | 2021-02-23 5:53 pm | N/A 2031-02-22 | Radius Health Inc. | RDUS | Dere Willard H Director | 15,500 | $0 | 27,695 (Direct) | View |
| 2021-01-21 Option Award | 2021-01-25 5:09 pm | N/A 2031-01-21 | Radius Health Inc. | RDUS | Dere Willard H Director | 20,000 | $0 | 20,000 (Direct) | View |
| 2021-01-15 Option Award | 2021-01-20 7:01 pm | N/A 2031-01-15 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 3,141 | $0 | 3,141 (Direct) | View |