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 |
| 2026-01-16 Sale | 2026-01-16 4:27 pm | C4 Therapeutics Inc. | CCCC | REYNO LEONARD Chief Medical Officer | 10,000 | $2.22 | $22,200 | 156,382 (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 |
| 2026-07-10 Tax Withholding | 2026-07-13 4:33 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | REYNO LEONARD Chief Medical Officer | 7,397 | $4.06 | 372,406 (Direct) | View |
| 2026-07-10 Exercise | 2026-07-13 4:33 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | REYNO LEONARD Chief Medical Officer | 15,325 | $0 | 372,406 (Direct) | View |
| 2026-07-01 Option Award | 2026-07-02 4:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Anderson Kenneth Carl Director | 2,650 | $4.34 | 358,235 (Direct) | View |
| 2026-07-01 Option Award | 2026-07-02 4:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | GROGAN DONNA ROY Director | 3,341 | $4.34 | 74,853 (Direct) | View |
| 2026-06-24 Option Award | 2026-06-26 8:33 pm | N/A 2036-06-23 | C4 Therapeutics Inc. | CCCC | Hughes Owen Director | 62,000 | $0 | 62,000 (Direct) | View |
| 2026-06-24 Option Award | 2026-06-26 8:26 pm | N/A 2036-06-23 | C4 Therapeutics Inc. | CCCC | Hoerter Steven L. Director | 62,000 | $0 | 62,000 (Direct) | View |
| 2026-06-24 Option Award | 2026-06-26 4:31 pm | N/A 2036-06-23 | C4 Therapeutics Inc. | CCCC | Koppikar Utpal Director | 62,000 | $0 | 62,000 (Direct) | View |
| 2026-06-24 Option Award | 2026-06-26 4:30 pm | N/A 2036-06-23 | C4 Therapeutics Inc. | CCCC | Anderson Kenneth Carl Director | 62,000 | $0 | 62,000 (Direct) | View |
| 2026-06-24 Option Award | 2026-06-26 4:29 pm | N/A 2036-06-23 | C4 Therapeutics Inc. | CCCC | Cooper Ronald Harold Wilfred Director | 62,000 | $0 | 62,000 (Direct) | View |
| 2026-06-24 Option Award | 2026-06-26 4:28 pm | N/A 2036-06-23 | C4 Therapeutics Inc. | CCCC | Bessen Laura Director | 62,000 | $0 | 62,000 (Direct) | View |
| 2026-06-24 Option Award | 2026-06-26 4:27 pm | N/A 2036-06-23 | C4 Therapeutics Inc. | CCCC | Fawell Stephen Director | 62,000 | $0 | 62,000 (Direct) | View |
| 2026-06-24 Option Award | 2026-06-26 4:25 pm | N/A 2036-06-23 | C4 Therapeutics Inc. | CCCC | GROGAN DONNA ROY Director | 62,000 | $0 | 62,000 (Direct) | View |
| 2026-06-01 Exercise | 2026-06-04 4:14 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Anderson Kenneth Carl Director | 1,070 | $2.11 | 355,585 (Direct) | View |
| 2026-06-01 Exercise | 2026-06-04 4:14 pm | N/A 2026-07-12 | C4 Therapeutics Inc. | CCCC | Anderson Kenneth Carl Director | 1,070 | $0 | 355,585 (Direct) | View |
| 2026-04-01 Option Award | 2026-04-03 10:45 am | N/A N/A | C4 Therapeutics Inc. | CCCC | Anderson Kenneth Carl Director | 4,259 | $2.7 | 354,515 (Direct) | View |
| 2026-04-01 Option Award | 2026-04-03 10:45 am | N/A N/A | C4 Therapeutics Inc. | CCCC | GROGAN DONNA ROY Director | 5,370 | $2.7 | 71,512 (Direct) | View |
| 2026-02-13 Tax Withholding | 2026-02-18 5:05 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Boyle Scott N Chief Business Officer | 9,004 | $1.89 | 298,801 (Direct) | View |
| 2026-02-13 Option Award | 2026-02-18 5:05 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Boyle Scott N Chief Business Officer | 200,000 | $0 | 298,801 (Direct) | View |
| 2026-02-13 Exercise | 2026-02-18 5:05 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Boyle Scott N Chief Business Officer | 25,950 | $0 | 298,801 (Direct) | View |
| 2026-02-14 Tax Withholding | 2026-02-18 5:05 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Mahaney Paige Chief Scientific Officer | 2,446 | $1.89 | 336,910 (Direct) | View |
| 2026-02-13 Option Award | 2026-02-18 5:05 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Mahaney Paige Chief Scientific Officer | 240,000 | $0 | 336,910 (Direct) | View |
| 2026-02-14 Exercise | 2026-02-18 5:05 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Mahaney Paige Chief Scientific Officer | 7,050 | $0 | 336,910 (Direct) | View |
| 2026-02-13 Tax Withholding | 2026-02-18 5:05 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Schick Kelly Chief People Officer | 9,004 | $1.89 | 299,881 (Direct) | View |
| 2026-02-13 Option Award | 2026-02-18 5:05 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Schick Kelly Chief People Officer | 200,000 | $0 | 299,881 (Direct) | View |
| 2026-02-13 Exercise | 2026-02-18 5:05 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Schick Kelly Chief People Officer | 25,950 | $0 | 299,881 (Direct) | View |
| 2026-02-14 Tax Withholding | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Hirsch Andrew President & CEO | 48,211 | $1.89 | 1,074,934 (Direct) | View |
| 2026-02-13 Option Award | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Hirsch Andrew President & CEO | 700,000 | $0 | 1,074,934 (Direct) | View |
| 2026-02-14 Exercise | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Hirsch Andrew President & CEO | 102,125 | $0 | 1,074,934 (Direct) | View |
| 2026-02-14 Tax Withholding | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | REYNO LEONARD Chief Medical Officer | 16,579 | $1.89 | 379,803 (Direct) | View |
| 2026-02-13 Option Award | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | REYNO LEONARD Chief Medical Officer | 240,000 | $0 | 379,803 (Direct) | View |
| 2026-02-14 Exercise | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | REYNO LEONARD Chief Medical Officer | 30,950 | $0 | 379,803 (Direct) | View |
| 2026-02-13 Tax Withholding | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Adams Kendra Chief Financial Officer | 17,244 | $1.89 | 385,098 (Direct) | View |
| 2026-02-13 Option Award | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Adams Kendra Chief Financial Officer | 240,000 | $0 | 385,098 (Direct) | View |
| 2026-02-13 Exercise | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Adams Kendra Chief Financial Officer | 34,700 | $0 | 385,098 (Direct) | View |
| 2026-02-14 Tax Withholding | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Mossler Mark Chief Accounting Officer | 3,268 | $1.89 | 71,916 (Direct) | View |
| 2026-02-13 Option Award | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Mossler Mark Chief Accounting Officer | 56,980 | $0 | 71,916 (Direct) | View |
| 2026-02-14 Exercise | 2026-02-18 5:04 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Mossler Mark Chief Accounting Officer | 9,420 | $0 | 71,916 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-05 4:10 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Anderson Kenneth Carl Director | 5,958 | $1.93 | 350,256 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-05 4:10 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | GROGAN DONNA ROY Director | 7,513 | $1.93 | 66,142 (Direct) | View |
| 2025-10-28 Exercise | 2025-10-30 4:30 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Mahaney Paige Chief Scientific Officer | 19,200 | $0 | 99,356 (Direct) | View |
| 2025-10-28 Tax Withholding | 2025-10-30 4:30 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Mahaney Paige Chief Scientific Officer | 5,644 | $2.58 | 99,356 (Direct) | View |
| 2025-10-01 Option Award | 2025-10-03 4:14 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Anderson Kenneth Carl Director | 5,349 | $2.15 | 344,298 (Direct) | View |
| 2025-10-01 Option Award | 2025-10-03 4:13 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | GROGAN DONNA ROY Director | 6,740 | $2.15 | 58,629 (Direct) | View |
| 2025-09-18 Tax Withholding | 2025-09-19 4:13 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Adams Kendra Chief Financial Officer | 2,775 | $3.32 | 162,342 (Direct) | View |
| 2025-09-18 Exercise | 2025-09-19 4:13 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Adams Kendra Chief Financial Officer | 6,250 | $0 | 162,342 (Direct) | View |
| 2025-07-10 Tax Withholding(A) | 2025-07-15 09:00 am | N/A N/A | C4 Therapeutics Inc. | CCCC | REYNO LEONARD Chief Medical Officer | 7,382 | $1.99 | 166,382 (Direct) | View |
| 2025-07-10 Exercise(A) | 2025-07-15 09:00 am | N/A N/A | C4 Therapeutics Inc. | CCCC | REYNO LEONARD Chief Medical Officer | 15,325 | $0 | 166,382 (Direct) | View |
| 2025-07-10 Tax Withholding | 2025-07-14 4:19 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | REYNO LEONARD Chief Medical Officer | 7,382 | $1.99 | 166,382 (Direct) | View |
| 2025-07-01 Option Award | 2025-07-02 4:17 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | Anderson Kenneth Carl Director | 7,616 | $1.51 | 338,949 (Direct) | View |
| 2025-07-01 Option Award | 2025-07-02 4:17 pm | N/A N/A | C4 Therapeutics Inc. | CCCC | GROGAN DONNA ROY Director | 9,609 | $1.51 | 51,889 (Direct) | View |
| 2025-06-18 Option Award | 2025-06-20 4:12 pm | N/A 2035-06-17 | C4 Therapeutics Inc. | CCCC | Koppikar Utpal Director | 35,500 | $0 | 35,500 (Direct) | View |
| 2025-06-18 Option Award | 2025-06-20 4:11 pm | N/A 2035-06-17 | C4 Therapeutics Inc. | CCCC | Hughes Owen Director | 35,500 | $0 | 35,500 (Direct) | View |
| 2025-06-18 Option Award | 2025-06-20 4:11 pm | N/A 2035-06-17 | C4 Therapeutics Inc. | CCCC | Fawell Stephen Director | 35,500 | $0 | 35,500 (Direct) | View |
| 2025-06-18 Option Award | 2025-06-20 4:11 pm | N/A 2035-06-17 | C4 Therapeutics Inc. | CCCC | Anderson Kenneth Carl Director | 35,500 | $0 | 35,500 (Direct) | View |
| 2025-06-18 Option Award | 2025-06-20 4:11 pm | N/A 2035-06-17 | C4 Therapeutics Inc. | CCCC | Bessen Laura Director | 35,500 | $0 | 35,500 (Direct) | View |
| 2025-06-18 Option Award | 2025-06-20 4:11 pm | N/A 2035-06-17 | C4 Therapeutics Inc. | CCCC | GROGAN DONNA ROY Director | 35,500 | $0 | 35,500 (Direct) | View |
| 2025-06-18 Option Award | 2025-06-20 4:10 pm | N/A 2035-06-17 | C4 Therapeutics Inc. | CCCC | Cooper Ronald Harold Wilfred Director | 35,500 | $0 | 35,500 (Direct) | View |
| 2025-06-18 Option Award | 2025-06-20 4:10 pm | N/A 2035-06-17 | C4 Therapeutics Inc. | CCCC | Hoerter Steven L. Director | 35,500 | $0 | 35,500 (Direct) | View |