Theresa Wingrove - Feb 2, 2024 Form 4 Insider Report for ImmunoGen, Inc. (IMGN)

Role
SVP OF REGULATORY AFFAIRS
Signature
/s/ Renee Lentini, Attorney-in-Fact
Stock symbol
IMGN
Transactions as of
Feb 2, 2024
Transactions value $
-$352,391
Form type
4
Date filed
2/6/2024, 09:43 PM
Previous filing
Feb 5, 2024
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 $0 +29.6K +865.15% $0.00 33.1K Feb 2, 2024 Direct
transaction IMGN Common Stock Sale -$352K -12K -36.37% $29.30 21K Feb 5, 2024 Direct F1, F2

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 Options Exercise $0 -21.8K -40% $0.00 32.8K Feb 2, 2024 Common Stock 21.8K $0.00 Direct F3, F4
transaction IMGN Restricted Stock Unit Options Exercise $0 -7.8K -33.33% $0.00 15.6K Feb 2, 2024 Common Stock 7.8K $0.00 Direct F3, F5
* 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 June 13, 2023 pursuant to Rule 10b5-1 under the Securities Exchange Act of 1934, as amended.
F2 The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.295 to $29.315, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within these ranges.
F3 Each restricted stock unit ("RSU") represents the contingent right to receive, upon vesting of the RSU, one share of the Issuer's common stock.
F4 The RSUs were awarded on 2/3/2023 and vest with respect to 40% of such RSUs on the one-year anniversary of the date of grant and with respect to the remaining 60% of such RSUs on the eighteen-month anniversary of the date of grant, subject to continued service through each vesting date.
F5 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.