Bruce Keyt - Mar 12, 2024 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, 2024
Transactions value $: $0
Form type: 4
Date filed: 3/14/2024, 06:15 PM
Previous filing: Mar 5, 2024
Next filing: Mar 15, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IGMS	Common Stock	Award	$0	+46.3K	+35.7%	$0.00	176K	Mar 12, 2024	Direct	F1
holding	IGMS	Common Stock						4.04K	Mar 12, 2024	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	+92.5K		$0.00	92.5K	Mar 12, 2024	Common Stock	92.5K	$9.95	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-sixteenth of the RSUs shall vest on June 12, 2024 and each three-month anniversary thereafter, provided that the Reporting Person remains a service provider through each vesting date.
F2	The securities are held directly by the reporting person's spouse.
F3	One forty-eighth of the shares subject to the option shall vest on April 12, 2024 and each month thereafter, provided that the Reporting Person remains a service provider through each vesting date.