Insider · CIK 0001733204
David A Spellman
Files at: MRSN. On EDGAR ↗
Reported trades — common stock
No reported common-stock activity in this period.
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jan 23, 2019 AForm 4 → | Jan 25, 4:07 pm EST | Mersana Therapeutics, Inc.MRSN | 100,000 | — | — | 100,000 | — | |
| Mar 12, 2018 AForm 4 → | Mar 14, 4:49 pm EDT | Mersana Therapeutics, Inc.MRSN | 150,000 | — | — | 150,000 | — |