<SEC-DOCUMENT>0001137789-21-000008.txt : 20210129
<SEC-HEADER>0001137789-21-000008.hdr.sgml : 20210129
<ACCEPTANCE-DATETIME>20210129183806
ACCESSION NUMBER:		0001137789-21-000008
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210127
FILED AS OF DATE:		20210129
DATE AS OF CHANGE:		20210129

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Nygaard Jeffrey D.
		CENTRAL INDEX KEY:			0001720273

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31560
		FILM NUMBER:		21573397

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

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Seagate Technology plc
		CENTRAL INDEX KEY:			0001137789
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER STORAGE DEVICES [3572]
		IRS NUMBER:				980648577
		STATE OF INCORPORATION:			L2
		FISCAL YEAR END:			0703

	BUSINESS ADDRESS:	
		STREET 1:		38/39 FITZWILLIAM SQUARE
		CITY:			DUBLIN 2
		STATE:			L2
		ZIP:			00000
		BUSINESS PHONE:		510-661-1000

	MAIL ADDRESS:	
		STREET 1:		38/39 FITZWILLIAM SQUARE
		CITY:			DUBLIN 2
		STATE:			L2
		ZIP:			00000

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

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SEAGATE TECHNOLOGY
		DATE OF NAME CHANGE:	20021212

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SEAGATE TECHNOLOGY HOLDINGS
		DATE OF NAME CHANGE:	20010406
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_161196346979646.xml
<DESCRIPTION>FORM 4
<TEXT>
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            <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>Executive Vice President</officerTitle>
            <otherText></otherText>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Jeffrey D. Nygaard Revocable Trust U/A Dated August 17, 2009</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
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            </securityTitle>
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            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-01-27</value>
            </transactionDate>
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            </transactionAmounts>
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            </expirationDate>
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                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
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                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
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                </sharesOwnedFollowingTransaction>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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                </directOrIndirectOwnership>
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        <derivativeTransaction>
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                <transactionCode>M</transactionCode>
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                <transactionShares>
                    <value>7800</value>
                </transactionShares>
                <transactionPricePerShare>
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                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2015-09-09</value>
                <footnoteId id="F3"/>
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            <expirationDate>
                <value>2021-09-09</value>
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                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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                </underlyingSecurityShares>
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                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>NQ Stock Option</value>
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            </transactionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>9380</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2016-09-09</value>
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            <expirationDate>
                <value>2022-09-09</value>
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                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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            </underlyingSecurity>
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                    <value>0</value>
                </sharesOwnedFollowingTransaction>
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                </directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The option exercise and sale of Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.</footnote>
        <footnote id="F2">Options granted to the Reporting Person under the Seagate Technology plc 2012 Equity Incentive Plan (the &quot;Plan&quot;) are subject to a four-year vesting schedule. One quarter of the options vested on November 20, 2018. Subject to the Reporting Person's continuous employment, the remaining options vest in equal monthly installments over the 36 months following November 20, 2018.</footnote>
        <footnote id="F3">Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. The remaining options vested in equal monthly installments over the 36 months following September 9, 2015.</footnote>
        <footnote id="F4">Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. The remaining options vested in equal monthly installments over the 36 months following September 9, 2016.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jamie Amentler, Attorney-in-Fact for Jeffrey D. Nygaard</signatureName>
        <signatureDate>2021-01-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
