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 |
| 2025-03-10 Sale | 2025-03-12 4:32 pm | MADRIGAL PHARMACEUTICALS INC. | MDGL | Dier Mardi SVP and CFO | 258 | $323.04 | $83,344 | 10,440 (Direct) | View |
| 2025-03-03 Sale | 2025-03-05 4:31 pm | MADRIGAL PHARMACEUTICALS INC. | MDGL | Dier Mardi SVP and CFO | 1,961 | $324.96 | $637,248 | 6,914 (Direct) | View |
| 2023-05-09 Purchase | 2023-05-11 8:51 pm | ACELYRIN Inc. | SLRN | Dier Mardi CFO and CBO | 7,306 | $18 | $131,508 | 765,278 (Indirect Direct) | View |
| 2022-10-14 Sale | 2022-10-17 6:49 pm | Ultragenyx Pharmaceutical Inc. | RARE | Dier Mardi CFO & Executive Vice President | 1,629 | $40.16 | $65,421 | 66,695 (Direct) | View |
| 2022-10-12 Sale | 2022-10-14 12:58 pm | Ultragenyx Pharmaceutical Inc. | RARE | Dier Mardi CFO & Executive Vice President | 3,484 | $38.22 | $133,158 | 68,324 (Direct) | View |
| 2022-03-01 Sale | 2022-03-03 6:12 pm | Ultragenyx Pharmaceutical Inc. | RARE | Dier Mardi CFO & Executive Vice President | 954 | $65.71 | $62,686 | 76,708 (Direct) | View |
| 2021-10-12 Sale | 2021-10-14 6:33 pm | Ultragenyx Pharmaceutical Inc. | RARE | Dier Mardi CFO & Executive Vice President | 6,738 | $82 | $552,524 | 38,762 (Direct) | View |
| 2020-09-29 Purchase | 2020-09-29 8:09 pm | Prelude Therapeutics Inc | PRLD | Dier Mardi Director | 10,000 | $19 | $190,000 | 10,000 (Direct) | View |
| 2020-07-02 Sale | 2020-07-02 4:25 pm | PORTOLA PHARMACEUTICALS INC | PTLA | Dier Mardi EVP and CFO | 39,573 | $18 | $712,314 | 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 4:15 pm | N/A 2035-06-11 | Prelude Therapeutics Inc | PRLD | Dier Mardi Director | 38,000 | $0 | 38,000 (Direct) | View |
| 2025-03-05 Option Award | 2025-03-07 5:43 pm | N/A 2035-03-05 | MADRIGAL PHARMACEUTICALS INC. | MDGL | Dier Mardi SVP and CFO | 10,158 | $0 | 17,072 (Direct) | View |
| 2025-01-02 Option Award | 2025-01-06 4:43 pm | N/A 2035-01-01 | Oric Pharmaceuticals Inc. | ORIC | Dier Mardi Director | 35,000 | $0 | 35,000 (Direct) | View |
| 2024-06-14 Option Award | 2024-06-18 4:13 pm | N/A 2034-06-13 | Prelude Therapeutics Inc | PRLD | Dier Mardi Director | 23,500 | $0 | 23,500 (Direct) | View |
| 2024-06-12 Option Award | 2024-06-14 4:22 pm | N/A 2034-06-11 | Oric Pharmaceuticals Inc. | ORIC | Dier Mardi Director | 25,600 | $0 | 25,600 (Direct) | View |
Ownership | 2024-03-21 4:30 pm | N/A N/A | MADRIGAL PHARMACEUTICALS INC. | MDGL | Dier Mardi SVP and CFO | 0 | $0 | 31,103 (Direct) | View |
| 2023-06-16 Option Award | 2023-06-21 4:13 pm | N/A 2033-06-15 | Prelude Therapeutics Inc | PRLD | Dier Mardi Director | 23,500 | $0 | 23,500 (Direct) | View |
| 2023-06-14 Option Award | 2023-06-15 4:52 pm | N/A 2033-06-13 | Oric Pharmaceuticals Inc. | ORIC | Dier Mardi Director | 20,500 | $0 | 20,500 (Direct) | View |
| 2023-05-09 Other | 2023-05-11 8:51 pm | N/A 2032-11-20 | ACELYRIN Inc. | SLRN | Dier Mardi CFO and CBO | 1,517,694 | $0 | 765,278 (Direct) | View |
| 2023-05-04 Option Award | 2023-05-04 7:59 pm | N/A 2033-05-03 | ACELYRIN Inc. | SLRN | Dier Mardi CFO and CBO | 85,226 | $0 | 85,226 (Direct) | View |
Ownership | 2023-05-04 6:45 pm | N/A 2032-11-20 | ACELYRIN Inc. | SLRN | Dier Mardi CFO and CBO | 0 | $0 | 673,621 (Direct) | View |
| 2022-09-16 Option Award | 2022-09-19 9:39 pm | N/A N/A | Ultragenyx Pharmaceutical Inc. | RARE | Dier Mardi CFO & Executive Vice President | 20,000 | $0 | 71,808 (Direct) | View |
| 2022-06-17 Option Award | 2022-06-22 4:13 pm | N/A 2032-06-16 | Prelude Therapeutics Inc | PRLD | Dier Mardi Director | 34,300 | $0 | 34,300 (Direct) | View |
| 2022-06-17 Option Award | 2022-06-17 8:19 pm | N/A 2032-06-16 | Oric Pharmaceuticals Inc. | ORIC | Dier Mardi Director | 53,700 | $0 | 53,700 (Direct) | View |
| 2022-03-01 Option Award | 2022-03-03 6:12 pm | N/A 2032-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Dier Mardi CFO & Executive Vice President | 38,900 | $0 | 76,708 (Direct) | View |
| 2021-06-18 Option Award | 2021-06-22 5:40 pm | N/A 2031-06-17 | Prelude Therapeutics Inc | PRLD | Dier Mardi Director | 23,344 | $0 | 23,344 (Direct) | View |
| 2021-06-16 Option Award | 2021-06-17 7:42 pm | N/A 2031-06-15 | Oric Pharmaceuticals Inc. | ORIC | Dier Mardi Director | 16,625 | $0 | 16,625 (Direct) | View |
| 2021-06-02 Option Award | 2021-06-04 4:13 pm | 2022-06-02 2031-06-01 | Adamas Pharmaceuticals Inc | ADMS | Dier Mardi Director | 15,000 | $0 | 20,000 (Direct) | View |
| 2021-03-01 Option Award | 2021-03-03 8:38 pm | N/A 2031-03-01 | Ultragenyx Pharmaceutical Inc. | RARE | Dier Mardi CFO & Executive Vice President | 16,500 | $0 | 56,500 (Direct) | View |
| 2020-10-12 Option Award | 2020-10-13 5:52 pm | N/A 2030-10-12 | Ultragenyx Pharmaceutical Inc. | RARE | Dier Mardi CFO & Executive Vice President | 40,000 | $0 | 80,000 (Direct) | View |
| 2020-09-24 Option Award | 2020-09-28 7:35 pm | N/A 2030-09-23 | Prelude Therapeutics Inc | PRLD | Dier Mardi Director | 3,458 | $0 | 3,458 (Direct) | View |
Ownership | 2020-09-24 7:32 pm | N/A 2030-09-01 | Prelude Therapeutics Inc | PRLD | Dier Mardi Director | 0 | $0 | 43,230 (Direct) | View |
| 2020-06-18 Option Award | 2020-07-02 4:25 pm | N/A N/A | PORTOLA PHARMACEUTICALS INC | PTLA | Dier Mardi EVP and CFO | 10 | $8.36 | 0 (Direct) | View |