Bruce Keyt - Mar 12, 2022 Form 4 Insider Report for IGM Biosciences, Inc. (IGMS)

Role: Chief Scientific Officer
Signature: /s/ Misbah Tahir, by power of attorney
Stock symbol: IGMS
Transactions as of: Mar 12, 2022
Transactions value $: $0
Form type: 4
Date filed: 3/15/2022, 08:52 PM
Previous filing: Nov 17, 2021
Next filing: Mar 17, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IGMS	Common Stock	Award	$0	+12.5K	+94.73%	$0.00	25.7K	Mar 12, 2022	Direct	F1
holding	IGMS	Common Stock						1.01K	Mar 12, 2022	See footnote	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	IGMS	Stock Option (right to buy)	Award	$0	+75K		$0.00	75K	Mar 12, 2022	Common Stock	75K	$17.11	Direct	F3

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

Explanation of Responses:

Id	Content
F1	These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. One-fourth of the RSUs shall vest on March 12, 2023 and each one-year anniversary thereafter, provided that the Reporting Person remains a service provider through each vesting date.
F2	The shares are held directly by the Reporting Person's spouse.
F3	1/48 of the shares subject to the option shall vest on April 12, 2022 and each month thereafter, provided that the Reporting Person remains a service provider through each vesting date.