| 2024-01-16 | Sale | Mersana Therapeutics, Inc. MRSN | SVP, Chief Sci.&Tech. Officer | 10,409 0.0086% | $2.71 | $28,208 | +25.09% | |
| 2023-01-17 | Sale | Mersana Therapeutics, Inc. MRSN | SVP, Chief Sci.&Tech. Off. | 6,233 0.0058% | $5.74 | $35,777 | -41.65% | |
| 2022-01-18 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech Off. | 9,482 0.0124% | $5.92 | $56,133 | -7.05% | |
| 2021-08-20 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 4,432 0.0045% | $8.59 | $38,049 | -54.72% | |
| 2021-07-20 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 4,454 0.0046% | $9.13 | $40,687 | -54.63% | |
| 2021-07-19 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 16,992 0.0239% | $12.02 | $204,244 | -52.68% | |
| 2021-07-16 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 15,550 0.0216% | $12.47 | $193,909 | -54.68% | |
| 2021-07-01 | Sale | Mersana Therapeutics, Inc. MRSN | CS & Technology Officer | 3,772 0.0052% | $13.60 | $51,299 | -56.37% | |
| 2021-06-21 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 2,220 0.003% | $13.77 | $30,571 | -56.96% | |
| 2021-05-20 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 4,102 0.0038% | $9.26 | $37,982 | -43.07% | |
| 2021-04-20 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 4,102 0.0038% | $10.24 | $42,013 | -43.4% | |
| 2021-03-22 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 4,101 0.0038% | $11.11 | $45,550 | -44.32% | |
| 2021-02-22 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 4,101 0.0038% | $12.47 | $51,140 | -40.75% | |
| 2021-01-20 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 4,454 0.0066% | $21.54 | $95,939 | -39.3% | |
| 2020-12-21 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 6,328 0.0073% | $19.05 | $120,578 | -47.52% | |
| 2020-11-20 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 6,328 0.0076% | $17.26 | $109,242 | -37.69% | |
| 2020-10-21 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 4,101 0.0065% | $17.50 | $71,768 | -10.84% | |
| 2020-10-20 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science & Tech. Officer | 4,102 0.0041% | $10.69 | $43,861 | -7.63% | |
| 2020-09-21 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Science, Tech. Officer | 33,025 0.0416% | $18.71 | $617,925 | -20.82% | |
| 2018-09-24 | Sale | Mersana Therapeutics, Inc. MRSN | Chief Scientific Officer | 7,000 0.0173% | $6.51 | $45,605 | -58.79% |