Redmile Group, LLC - Mar 12, 2022 Form 4 Insider Report for IGM Biosciences, Inc. (IGMS)

Role: Director, 10%+ Owner
Signature: By: /s/ Jeremy Green, Managing Member of Redmile Group, LLC
Stock symbol: IGMS
Transactions as of: Mar 12, 2022
Transactions value $: $0
Form type: 4
Date filed: 3/15/2022, 09:45 PM
Previous filing: Jan 4, 2022
Next filing: Apr 4, 2022

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	+29.5K		$0.00	29.5K	Mar 12, 2022	Common Stock	29.5K	$17.11	See Footnote	F1, F2, F3, F4

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

Explanation of Responses:

Id	Content
F1	1/12th of the shares subject to the option shall vest each month following the Issuer's 2022 Annual Meeting of Stockholders on the same day of the month, subject to Mr. Michael Lee's continued service to the Issuer through each applicable vesting date; provided, however, if the Issuer's 2023 Annual Meeting of Stockholders is prior to the one-year anniversary of the Issuer's 2022 Annual Meeting of Stockholders, then the shares subject to the option will be fully vested as of the date of the Issuer's 2023 Annual Meeting of Stockholders.
F2	The stock option was granted to Mr. Lee, a managing director of Redmile Group, LLC ("Redmile"), in connection with his service as a member of the Board of Directors of the Issuer. Pursuant to the policies of Redmile, Mr. Lee holds this stock option as a nominee on behalf, and for the sole benefit, of Redmile and has assigned all economic, pecuniary and voting rights in respect of the stock option to Redmile. Mr. Lee disclaims beneficial ownership of the stock option, and the filing of this Form 4 shall not be deemed an admission that Mr. Lee is the beneficial owner of the stock option for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.
F3	The stock option may also be deemed beneficially owned by Jeremy Green as the principal of Redmile. Redmile and Mr. Green disclaim beneficial ownership of the stock option except to the extent of their pecuniary interest therein, and this Form 4 shall not be deemed an admission that Redmile or Mr. Green is the beneficial owner of the stock option for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.
F4	Mr. Lee, a member of the board of directors of the Issuer and a managing director of Redmile, was elected to the board of the Issuer as a representative of Redmile. As a result, the Reporting Persons are directors by deputization for purposes of Section 16 of the Securities Exchange Act of 1934, as amended.