Kristen Harrington-Smith - 15 Nov 2021 Form 4 Insider Report for ImmunoGen, Inc.

Signature
/s/ Renee Lentini, attorney in fact
Issuer symbol
N/A
Transactions as of
15 Nov 2021
Net transactions value
+$2,556,000
Form type
4
Filing time
17 Nov 2021, 15:14:04 UTC
Next filing
17 Feb 2022

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction IMGN Restricted Stock Unit Award $0 +75,000 $0.000000 75,000 15 Nov 2021 Common Stock 75,000 $0.000000 Direct F1, F2
transaction IMGN Common Stock (right to buy) Award $2,556,000 +450,000 $5.68 450,000 15 Nov 2021 Common Stock 450,000 $5.68 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit ("RSU") represents the contingent right to receive, upon vesting of the RSU, one share of the Issuer's common stock.
F2 The RSUs vest over a three-year period, with one-third of the RSUs vesting on each of the first three anniversaries of the date of grant, subject to continued service through each vesting date.
F3 These options vest over a four-year period, with 25% of the shares vesting on the one year anniversary of the date of grant, and thereafter an additional 6.25% of the shares vesting on each succeeding quarterly anniversary of the date of grant, subject to continued service through each vesting date.