Stacy Ann Coen - 30 Nov 2023 Form 4 Insider Report for ImmunoGen, Inc.

Signature
/s/ Renee Lentini, Attorney-in-Fact
Issuer symbol
N/A
Transactions as of
30 Nov 2023
Net transactions value
-$111,719
Form type
4
Filing time
05 Dec 2023, 21:08:03 UTC
Previous filing
17 Nov 2023
Next filing
03 Jan 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IMGN Common Stock Sale $111,719 -3,826 -10% $29.20 33,140 30 Nov 2023 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Effected pursuant to a trading plan adopted on August 10, 2023 pursuant to Rule 10b5-1 under the Securities Exchange Act of 1934, as amended.