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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
855654	Immunogen Inc.	IMGN	Pharmaceutical Preparations (2834)	042726691

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1510720	Theresa Wingrove	C/O Immunogen, Inc. 830 Winter Street Waltham MA 02451	Svp Of Regulatory Affairs	No	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2023-11-07	19,517	$10.65	22,328	No	4	M	Direct
Common Stock	Disposition	2023-11-07	19,517	$16.66	2,811	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2023-11-07	19,517	$0.00	19,517	$10.65

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
140,483		2028-02-15	No	4	M	Direct

Footnotes

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.
The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.65 to $16.71, 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.
This option was granted on 2/15/2018 and is fully vested as of the transaction date.