Mossler Mark (CIK 1992219) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-18). Recent activity: Buy CCCC (56,980 shares), Buy CCCC (9,420 shares), Sell CCCC (3,268 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-18 | C4 Therapeutics, Inc. (CCCC) | Chief Accounting Officer | Buy | 56,980 | $0 |
| 2026-02-18 | C4 Therapeutics, Inc. (CCCC) | Chief Accounting Officer | Buy | 9,420 | $0 |
| 2026-02-18 | C4 Therapeutics, Inc. (CCCC) | Chief Accounting Officer | Sell | 3,268 | $6,177 |
Source: SEC Form 4 filings · as of 2026-02-18