| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MRSN | Mersana Therapeutics, Inc. | Kaufman Michael J. | Chief Manufacturing Officer | Jul 16, 2021 | Sale | $12.47 | 5,776 | 72,027 | 38,934 | Jul 19, 2021, 08:50 PM | |
| MRSN | Mersana Therapeutics, Inc. | Kaufman Michael J. | Chief Manufacturing Officer | Jul 19, 2021 | Sale | $12.02 | 6,312 | 75,870 | 32,622 | Jul 19, 2021, 08:50 PM | |
| MRSN | Mersana Therapeutics, Inc. | Kaufman Michael J. | Sr VP, Chemistry, Man.&Control | Jan 15, 2021 | Option Exercise | $21.09 | 1,957 | 41,273 | 4,710 | Jan 20, 2021, 07:04 PM |
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