Hugh Rienhoff JR - Jul 15, 2021 Form 3 Insider Report for Imago BioSciences, Inc. (IMGO)

Role: Chief Executive Officer, Director
Signature: /s/ Matthew Plunkett, as Attorney-in-fact for Hugh Rienhoff, Jr.
Stock symbol: IMGO
Transactions as of: Jul 15, 2021
Transactions value $: $0
Form type: 3
Date filed: 7/15/2021, 05:35 PM
Next filing: Nov 19, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	IMGO	Common Stock						489K	Jul 15, 2021	Direct	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
holding	IMGO	Stock Option (Right to Buy)							Jul 15, 2021	Common Stock	4.76K	$2.52	Direct	F1
holding	IMGO	Stock Option (Right to Buy)							Jul 15, 2021	Common Stock	255K	$2.52	Direct	F1
holding	IMGO	Stock Option (Right to Buy)							Jul 15, 2021	Common Stock	143K	$1.52	Direct	F1, F2
holding	IMGO	Stock Option (Right to Buy)							Jul 15, 2021	Common Stock	157K	$2.10	Direct	F1, F3
holding	IMGO	Stock Option (Right to Buy)							Jul 15, 2021	Common Stock	609K	$4.20	Direct	F1, F4

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

Explanation of Responses:

Id	Content
F1	Reflects a 8.4-for-1 reverse stock split of the Issuer's outstanding securities effected prior to the effectiveness of the Issuer's S-1 Registration Statement.
F2	One forty-eighth (1/48th) of the shares initially subject to the option will vest on each monthly anniversary measured from April 10, 2019 (the "Vesting Commencement Date"), so that 100% of the shares subject to the option will be fully vested and exercisable as of the fourth anniversary of the Vesting Commencement Date, subject to the Reporting Person's continued service through each vesting date.
F3	The Option vests with respect to 25% of the shares subject thereto on July 7, 2020 (the "Vesting Commencement Date"), and 1/48th of the total number of shares vest monthly thereafter, so that 100% of the shares subject to the option will be fully vested and exercisable as of the fourth anniversary of the Vesting Commencement Date, subject to the Reporting Person's continued service through each vesting date.
F4	One forty-eighth (1/48th) of the shares initially subject to the option will vest on each monthly anniversary measured from November 12, 2020 (the "Vesting Commencement Date"), so that 100% of the shares subject to the option will be fully vested and exercisable as of the fourth anniversary of the Vesting Commencement Date, subject to the Reporting Person's continued service through each vesting date.