REYNO LEONARD (CIK 1528716) reported 9 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-18). Recent activity: Buy CCCC (240,000 shares), Buy CCCC (30,950 shares), Sell CCCC (16,579 shares), Sell CCCC (10,000 shares), Buy CCCC (15,325 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-18 | C4 Therapeutics, Inc. (CCCC) | Chief Medical Officer | Buy | 240,000 | $0 |
| 2026-02-18 | C4 Therapeutics, Inc. (CCCC) | Chief Medical Officer | Buy | 30,950 | $0 |
| 2026-02-18 | C4 Therapeutics, Inc. (CCCC) | Chief Medical Officer | Sell | 16,579 | $31,334 |
| 2026-01-16 | C4 Therapeutics, Inc. (CCCC) | Chief Medical Officer | Sell | 10,000 | $22,200 |
| 2025-07-15 | C4 Therapeutics, Inc. (CCCC) | Chief Medical Officer | Buy | 15,325 | $0 |
| 2025-07-15 | C4 Therapeutics, Inc. (CCCC) | Chief Medical Officer | Sell | 7,382 | $14,690 |
| 2025-07-14 | C4 Therapeutics, Inc. (CCCC) | Chief Medical Officer | Sell | 7,382 | $14,690 |
| 2025-02-18 | C4 Therapeutics, Inc. (CCCC) | Chief Medical Officer | Buy | 87,100 | $0 |
| 2025-02-18 | C4 Therapeutics, Inc. (CCCC) | Chief Medical Officer | Sell | 5,145 | $16,361 |
Source: SEC Form 4 filings · as of 2026-02-18