Dean J. Mitchell - Sep 22, 2023 Form 4/A Insider Report for ImmunoGen, Inc. (IMGN)

Role
Director
Signature
/s/ Renee Lentini, Attorney-in-Fact
Stock symbol
IMGN
Transactions as of
Sep 22, 2023
Transactions value $
$147,000
Form type
4/A
Date filed
12/19/2023, 07:00 PM
Date Of Original Report
Sep 26, 2023
Previous filing
Jun 16, 2023
Next filing
Feb 12, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IMGN Common Stock Options Exercise $147K +10K +10.75% $14.70 103K Sep 22, 2023 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Due to clerical error, this amendment to Form 4 is being filed to correct the number of shares beneficially owned following the reported transaction.