Hack Andrew A. F. (CIK 1657434) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-01-06). Recent activity: Sell MRSN (578 shares), Sell MRSN (346,545 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-01-06 | Mersana Therapeutics, Inc. (MRSN) | Director | Sell | 578 | $0 |
| 2026-01-06 | Mersana Therapeutics, Inc. (MRSN) | Director | Sell | 346,545 | $0 |
Source: SEC Form 4 filings · as of 2026-01-06