Dean J. Mitchell - Sep 22, 2023 Form 4 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
Date filed
9/26/2023, 04:08 PM
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 +7.01% $14.70 153K Sep 22, 2023 Direct

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 Stock Option (Right to Buy) Options Exercise $0 -10K -100% $0.00* 0 Sep 22, 2023 Common Stock 10K $14.70 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This option was granted on 11/12/2013 and was exercisable as to 2,500 shares commencing on February 1, 2014, 2,500 shares commencing on May 1, 2014, 2,500 shares commencing on August 1, 2014, and 2,500 shares commencing on November 1, 2014.