<SEC-DOCUMENT>0001137789-21-000081.txt : 20210914
<SEC-HEADER>0001137789-21-000081.hdr.sgml : 20210914
<ACCEPTANCE-DATETIME>20210914192120
ACCESSION NUMBER:		0001137789-21-000081
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210909
FILED AS OF DATE:		20210914
DATE AS OF CHANGE:		20210914

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Naik Ravi
		CENTRAL INDEX KEY:			0001845312

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31560
		FILM NUMBER:		211253739

	MAIL ADDRESS:	
		STREET 1:		47488 KATO ROAD
		CITY:			FREMONT
		STATE:			CA
		ZIP:			94538

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Seagate Technology Holdings plc
		CENTRAL INDEX KEY:			0001137789
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER STORAGE DEVICES [3572]
		IRS NUMBER:				981597419
		FISCAL YEAR END:			0702

	BUSINESS ADDRESS:	
		STREET 1:		38/39 FITZWILLIAM SQUARE
		CITY:			DUBLIN 2
		STATE:			L2
		ZIP:			D02 NX53
		BUSINESS PHONE:		353-1234-3136

	MAIL ADDRESS:	
		STREET 1:		38/39 FITZWILLIAM SQUARE
		CITY:			DUBLIN 2
		STATE:			L2
		ZIP:			D02 NX53

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Seagate Technology plc
		DATE OF NAME CHANGE:	20100706

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Seagate Technology
		DATE OF NAME CHANGE:	20090330

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SEAGATE TECHNOLOGY
		DATE OF NAME CHANGE:	20021212
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4
<TEXT>
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        <issuerTradingSymbol>STX</issuerTradingSymbol>
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            <rptOwnerName>Naik Ravi</rptOwnerName>
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            <rptOwnerStreet1>SEAGATE TECHNOLOGY HOLDINGS PLC</rptOwnerStreet1>
            <rptOwnerStreet2>47488 KATO ROAD</rptOwnerStreet2>
            <rptOwnerCity>FREMONT</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94538</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
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            <officerTitle>EVP &amp; CIO</officerTitle>
            <otherText></otherText>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8045.0</value>
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            </underlyingSecurity>
            <postTransactionAmounts>
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                    <value>D</value>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>NQ Options</value>
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                </transactionShares>
                <transactionPricePerShare>
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                    <value>3847</value>
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                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                    <value>Ordinary Shares</value>
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                    <value>3847.0</value>
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                    <value>11543</value>
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    <footnotes>
        <footnote id="F1">These Ordinary Shares are withheld securities to cover tax liabilities incident to the vesting of Restricted Share Units (&quot;RSUs&quot;).</footnote>
        <footnote id="F2">Each RSU represents a contingent right to receive one Ordinary Share of the Issuer.</footnote>
        <footnote id="F3">Consists of a grant of RSUs awarded to the Reporting Person under the Amended and Restated Seagate Technology Holdings plc 2012 Equity Incentive Plan (the &quot;Plan&quot;). Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on September 9, 2022 and each one-year anniversary thereafter.</footnote>
        <footnote id="F4">Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter of the options will vest on September 9, 2022, and the remaining options vest in equal monthly installments over the 36 months following September 9, 2022.</footnote>
        <footnote id="F5">Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on September 9, 2020 and each one-year anniversary thereafter.</footnote>
        <footnote id="F6">Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on September 9, 2021 and each one-year anniversary thereafter.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jamie Amentler, Attorney-in-Fact for Ravi Naik</signatureName>
        <signatureDate>2021-09-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
