Stacy Ann Coen Form 4 ImmunoGen / Stacy Ann Coen ownership change

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Coen Stacy Ann

(Last) (First) (Middle)

C/O IMMUNOGEN, INC.

830 WINTER STREET

(Street)

WALTHAM MA 02451

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ImmunoGen, Inc. [ IMGN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
SVP & CHIEF BUSINESS OFFICER

3. Date of Earliest Transaction (Month/Day/Year)
11/15/2023

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/15/2023		M(1)		20,986	A	$4.92	57,952	D
Common Stock	11/15/2023		M(1)		5,300	A	$7.69	63,252	D
Common Stock	11/15/2023		S(1)		26,286	D	$16.01(2)	36,966	D
Common Stock	11/16/2023		M(1)		3,200	A	$4.92	40,166	D
Common Stock	11/16/2023		M(1)		900	A	$7.69	41,066	D
Common Stock	11/16/2023		S(1)		4,100	D	$16.01(3)	36,966	D
Common Stock	11/17/2023		M(1)		2,200	A	$4.92	39,166	D
Common Stock	11/17/2023		M(1)		76,023	A	$7.69	115,189	D
Common Stock	11/17/2023		S(1)		78,223	D	$16.05(4)	36,966	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$4.92	11/15/2023		M(1)			20,986	(5)	06/01/2030	Common Stock	20,986	$0	54,223	D
Stock Option (Right to Buy)	$7.69	11/15/2023		M(1)			5,300	(6)	02/05/2031	Common Stock	5,300	$0	153,710	D
Stock Option (Right to Buy)	$4.92	11/16/2023		M(1)			3,200	(5)	06/01/2030	Common Stock	3,200	$0	51,023	D
Stock Option (Right to Buy)	$7.69	11/16/2023		M(1)			900	(6)	02/05/2031	Common Stock	900	$0	152,810	D
Stock Option (Right to Buy)	$4.92	11/17/2023		M(1)			2,200	(5)	06/01/2030	Common Stock	2,200	$0	48,823	D
Stock Option (Right to Buy)	$7.69	11/17/2023		M(1)			76,023	(6)	02/05/2031	Common Stock	76,023	$0	76,787	D

Explanation of Responses:

1. 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.

2. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.00 to $16.03, 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.

3. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.00 to $16.02, 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.

4. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.00 to $16.17, 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.

5. This option was granted on June 1, 2020 and is exercisable as to 25% on the first year anniversary of the grant and 6.25% quarterly for the subsequent three years.

6. This option was granted on February 5, 2021 and is exercisable as to 25% on the first year anniversary of the grant and 6.25% quarterly for the subsequent three years.

	/s/ Renee Lentini, Attorney-in-Fact	11/17/2023
	** Signature of Reporting Person	Date
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