February 2, 2024 · Form 4 insider transaction
Wingrove Theresa sold 7,800 shares of ImmunoGen, Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 4 days after the transaction.
Each restricted stock unit ("RSU") represents the contingent right to receive, upon vesting of the RSU, one share of the Issuer's common stock.; The RSUs were awarded on 2/3/2023 and vest over a three-year period, with 33 1/3% of the RSUs vesting on each of the first three anniversaries of the date of grant, subject to continued service through each vesting date.