<SEC-DOCUMENT>0001576280-25-000004.txt : 20250103
<SEC-HEADER>0001576280-25-000004.hdr.sgml : 20250103
<ACCEPTANCE-DATETIME>20250103175244
ACCESSION NUMBER:		0001576280-25-000004
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20241231
FILED AS OF DATE:		20250103
DATE AS OF CHANGE:		20250103

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Eltoukhy Helmy
		CENTRAL INDEX KEY:			0001752968
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38683
		FILM NUMBER:		25508227

	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
		IRS NUMBER:				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>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1735944758.xml
<DESCRIPTION>FORM 4
<TEXT>
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        <issuerCik>0001576280</issuerCik>
        <issuerName>Guardant Health, Inc.</issuerName>
        <issuerTradingSymbol>GH</issuerTradingSymbol>
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            <rptOwnerName>Eltoukhy Helmy</rptOwnerName>
        </reportingOwnerId>
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            <rptOwnerStreet1>3100 HANOVER STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94304</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Co-Chief Executive Officer</officerTitle>
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            <securityTitle>
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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 restricted stock unit award was granted on March 18, 2024 and vests in four equal installments on the last day of each calendar quarter, March 31st, June 30th, September 30th, and December 31st, 2024.</footnote>
        <footnote id="F3">Not applicable for Restricted Stock Units.</footnote>
        <footnote id="F4">This restricted stock unit award was granted on March 18, 2024 and vests with respect to 1/3 of the shares on January 1, 2025, and then quarterly for the remaining twenty-four months.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John G. Saia, as attorney-in-fact for Helmy Eltoukhy</signatureName>
        <signatureDate>2025-01-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>