AmirAli Talasaz - 13 Aug 2021 Form 4 Insider Report for Guardant Health, Inc. (GH)

Role: Co-Chief Executive Officer, Director
Signature: /s/ John Saia, as attorney-in-fact for AmirAli Talasaz
Issuer symbol: GH
Transactions as of: 13 Aug 2021
Net transactions value: +$99,998
Form type: 4
Filing time: 17 Aug 2021, 19:02:59 UTC
Next filing: 23 Nov 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GH	COMMON STOCK	Options Exercise	$99,998	+23,923	+1.4%	$4.18^*	1,749,345	13 Aug 2021	Direct	F1
holding	GH	COMMON STOCK						470,800	13 Aug 2021	Shares held by Talasaz Investments, L.P.

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	GH	STOCK OPTION (RIGHT TO BUY)	Options Exercise	$0	-23,923	-4%	$0.000000	567,659	13 Aug 2021	COMMON STOCK	23,923	$4.18	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Represents shares acquired by the Reporting Person through a cash exercise of a vested Stock Option Award.
F2	The stock option vests and becomes exercisable in equal monthly installments over 48 months commencing on April 23, 2017.