| 2023-01-17 | Sale | Mersana Therapeutics, Inc. MRSN | SVP, Chief Medical Officer | 2,209 0.0021% | $5.74 | $12,680 | -41.65% | |
| 2022-12-01 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Medical Officer | 5,527 0.0053% | $6.59 | $36,423 | -39.14% | |
| 2021-12-01 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Medical Officer | 11,054 0.0166% | $6.81 | $75,278 | -17.5% |