<SEC-DOCUMENT>0001977179-26-000002.txt : 20260105
<SEC-HEADER>0001977179-26-000002.hdr.sgml : 20260105
<ACCEPTANCE-DATETIME>20260105175750
ACCESSION NUMBER:		0001977179-26-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260101
FILED AS OF DATE:		20260105
DATE AS OF CHANGE:		20260105

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Chudova Darya
		CENTRAL INDEX KEY:			0001977179
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38683
		FILM NUMBER:		26508222

	MAIL ADDRESS:	
		STREET 1:		3100 HANOVER STREET
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94304

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Guardant Health, Inc.
		CENTRAL INDEX KEY:			0001576280
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				454139254
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3100 HANOVER STREET
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94304
		BUSINESS PHONE:		855-698-8887

	MAIL ADDRESS:	
		STREET 1:		3100 HANOVER STREET
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94304
</SEC-HEADER>
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    <footnotes>
        <footnote id="F1">These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock units. The amount retained by the Company was not in excess of the amount of the tax liability.</footnote>
        <footnote id="F2">This represents a restricted stock unit award granted on November 7, 2022 that vests over a four-year period. 25% of the shares subject to such award vested on October 1, 2023 and the remaining 75% of the shares vests in equal quarterly installments over the remaining three-year period thereafter.</footnote>
        <footnote id="F3">Not applicable for Restricted Stock Units.</footnote>
        <footnote id="F4">This represents a performance-based restricted stock unit award granted on June 7, 2023, with a performance metric and 2-year vest period that was achieved. The shares vested on January 1, 2026.</footnote>
        <footnote id="F5">This represents a restricted stock unit award granted on December 13, 2023 that vests over a three-year period. 33% of the shares subject to such award vested on October 1, 2024 and the remaining 67% of the shares vests in equal quarterly installments over the remaining two-year period thereafter.</footnote>
        <footnote id="F6">This represents a performance-based restricted stock unit award granted on February 26, 2024, that a performance metric was achieved and that 33% of the shares subject to such award vested on March 1, 2025. 33% of the shares subject to the award vested on January 1, 2026, and the remaining 34% of the shares subject to the award will vest on January 1, 2027.</footnote>
        <footnote id="F7">This represents a restricted stock unit award granted on November 8, 2024 that vests over a three-year period. 33% of the shares subject to such award vested on October 1, 2025 and the remaining 67% of the shares vests in equal quarterly installments over the remaining two-year period thereafter.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John G. Saia, as attorney-in-fact for Darya Chudova</signatureName>
        <signatureDate>2026-01-05</signatureDate>
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