Bruce Keyt - 05 Jan 2023 Form 4 Insider Report for IGM Biosciences, Inc. (IGMS)

Role: Chief Scientific Officer
Signature: /s/ Misbah Tahir, by power of attorney
Issuer symbol: IGMS
Transactions as of: 05 Jan 2023
Net transactions value: +$31,393
Form type: 4
Filing time: 09 Jan 2023, 17:16:13 UTC
Previous filing: 20 Dec 2022
Next filing: 16 Mar 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IGMS	Common Stock	Options Exercise	$31,393	+33,756	+58%	$0.9300^*	91,997	05 Jan 2023	Direct
holding	IGMS	Common Stock						1,013	05 Jan 2023	See footnote	F1

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	IGMS	Stock Option (right to buy)	Options Exercise	$0	-33,756	-100%	$0.000000^*	0	05 Jan 2023	Common Stock	33,756	$0.9300	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The shares are held directly by the reporting person's spouse.
F2	The shares subject to the option are vested and exercisable as of the date hereof.