Redmile Group, LLC - Apr 4, 2023 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: Apr 4, 2023
Transactions value $: $0
Form type: 4
Date filed: 4/6/2023, 09:30 PM
Previous filing: Apr 4, 2023
Next filing: Apr 17, 2023

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	+15.5K		$0.00	15.5K	Apr 4, 2023	Common Stock	15.5K	$12.86	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 that is completed after the date of the Issuer's first annual stockholder meeting following the grant date of the options (the "Annual Meeting"), provided that the options will vest in full on the earlier of (i) the 12-month anniversary of the Annual Meeting, or (ii) the date of the Issuer's next annual stockholder meeting, in each case subject to Michael Lee continuing to provide his service as a member of the Board of Directors of the Issuer through the applicable vesting date.
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.