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 |
2020-06-26 Sale | 2020-06-30 2:11 pm | BIOMARIN PHARMACEUTICAL INC | BMRN | Dere Willard H Director | 4,430 | $123.61 | $547,592 | 13,290 (Direct) | View |
2020-02-26 Sale | 2020-02-28 4:15 pm | Radius Health Inc. | RDUS | Dere Willard H Director | 1,925 | $17.95 | $34,554 | 12,195 (Direct) | View |
2019-04-16 Sale | 2019-04-18 4:41 pm | Radius Health Inc. | RDUS | Dere Willard H Director | 1,680 | $22.22 | $37,330 | 8,620 (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 |
2022-08-15 Disposition | 2022-08-15 4:16 pm | N/A 2032-01-14 | Radius Health Inc. | RDUS | Dere Willard H Director | 10,000 | $3.6 | 0 (Direct) | View |
2022-08-15 Disposition | 2022-08-15 4:16 pm | N/A N/A | Radius Health Inc. | RDUS | Dere Willard H Director | 1,895 | $10 | 0 (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 |
2020-06-25 Option Award | 2020-06-29 8:09 pm | N/A 2030-06-25 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 9,200 | $0 | 9,200 (Direct) | View |
2020-06-18 Option Award | 2020-06-22 4:11 pm | N/A 2030-06-17 | Seres Therapeutics Inc. | MCRB | Dere Willard H Director | 30,000 | $0 | 30,000 (Direct) | View |
2020-05-27 Option Award | 2020-05-29 4:23 pm | N/A N/A | BIOMARIN PHARMACEUTICAL INC | BMRN | Dere Willard H Director | 4,300 | $0 | 17,720 (Direct) | View |
2020-02-20 Option Award | 2020-02-24 5:49 pm | N/A 2030-02-20 | Radius Health Inc. | RDUS | Dere Willard H Director | 15,500 | $0 | 24,120 (Direct) | View |
2020-01-02 Option Award | 2020-01-03 4:38 pm | N/A 2030-01-02 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 11,264 | $0 | 11,264 (Direct) | View |
2019-06-13 Option Award | 2019-06-14 4:12 pm | N/A 2029-06-12 | Seres Therapeutics Inc. | MCRB | Dere Willard H Director | 15,000 | $0 | 15,000 (Direct) | View |
2019-06-07 Option Award | 2019-06-11 4:14 pm | N/A 2029-06-07 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 25,000 | $0 | 25,000 (Direct) | View |
2019-06-04 Option Award | 2019-06-06 6:12 pm | N/A N/A | BIOMARIN PHARMACEUTICAL INC | BMRN | Dere Willard H Director | 4,430 | $0 | 13,420 (Direct) | View |
2019-02-22 Option Award | 2019-02-26 6:12 pm | N/A 2029-02-22 | Radius Health Inc. | RDUS | Dere Willard H Director | 15,500 | $0 | 20,300 (Direct) | View |
2019-02-13 Exercise | 2019-02-13 5:15 pm | N/A N/A | Radius Health Inc. | RDUS | Dere Willard H Director | 4,800 | $0 | 4,800 (Direct) | View |
2019-01-02 Option Award | 2019-01-04 4:01 pm | N/A 2019-01-02 | Mersana Therapeutics Inc. | MRSN | Dere Willard H Director | 13,619 | $0 | 13,619 (Direct) | View |
2018-06-26 Option Award | 2018-06-27 9:07 pm | N/A 2028-06-25 | Seres Therapeutics Inc. | MCRB | Dere Willard H Director | 15,000 | $0 | 15,000 (Direct) | View |
2018-06-05 Option Award | 2018-06-07 8:09 pm | N/A N/A | BIOMARIN PHARMACEUTICAL INC | BMRN | Dere Willard H Director | 4,300 | $0 | 8,990 (Direct) | View |