<SEC-DOCUMENT>0001137789-23-000066.txt : 20230905
<SEC-HEADER>0001137789-23-000066.hdr.sgml : 20230905
<ACCEPTANCE-DATETIME>20230905170649
ACCESSION NUMBER:		0001137789-23-000066
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230831
FILED AS OF DATE:		20230905
DATE AS OF CHANGE:		20230905

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MOSLEY WILLIAM D
		CENTRAL INDEX KEY:			0001388390

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31560
		FILM NUMBER:		231236770

	MAIL ADDRESS:	
		STREET 1:		SEAGATE TECHNOLOGY
		STREET 2:		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:			0630

	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
<FILENAME>wf-form4_169394799353632.xml
<DESCRIPTION>FORM 4
<TEXT>
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        <issuerName>Seagate Technology Holdings plc</issuerName>
        <issuerTradingSymbol>STX</issuerTradingSymbol>
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            <rptOwnerName>MOSLEY WILLIAM D</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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        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
            <otherText></otherText>
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    <aff10b5One>1</aff10b5One>

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                <transactionPricePerShare>
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                <transactionPricePerShare>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares</value>
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            <transactionDate>
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                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>30.95</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares</value>
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            <transactionDate>
                <value>2023-08-31</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>70.0772</value>
                    <footnoteId id="F7"/>
                </transactionPricePerShare>
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                    <value>D</value>
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                    <value>D</value>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares</value>
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            <transactionDate>
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            </transactionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
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                    <footnoteId id="F1"/>
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        <nonDerivativeTransaction>
            <securityTitle>
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                <transactionCode>S</transactionCode>
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            <transactionAmounts>
                <transactionShares>
                    <value>16607</value>
                    <footnoteId id="F1"/>
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                <transactionPricePerShare>
                    <value>71.3967</value>
                    <footnoteId id="F8"/>
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                    <footnoteId id="F1"/>
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                <transactionPricePerShare>
                    <value>72.2937</value>
                    <footnoteId id="F9"/>
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            <transactionDate>
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            <transactionCoding>
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                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>62857</value>
                    <footnoteId id="F1"/>
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                <transactionPricePerShare>
                    <value>73.4483</value>
                    <footnoteId id="F10"/>
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                <transactionAcquiredDisposedCode>
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        <nonDerivativeTransaction>
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                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                    <value>5605</value>
                    <footnoteId id="F1"/>
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                <transactionPricePerShare>
                    <value>74.0076</value>
                    <footnoteId id="F11"/>
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                <transactionAcquiredDisposedCode>
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                </sharesOwnedFollowingTransaction>
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                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>NQ Options</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>36.09</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2023-08-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2017-09-09</value>
                <footnoteId id="F12"/>
            </exerciseDate>
            <expirationDate>
                <value>2023-09-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Ordinary Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100000.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>98860</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>NQ Options</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>30.95</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2023-08-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2018-09-11</value>
                <footnoteId id="F13"/>
            </exerciseDate>
            <expirationDate>
                <value>2024-09-11</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Ordinary Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100000.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>153188</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>NQ Options</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>36.09</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2023-09-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>98860</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2017-09-09</value>
                <footnoteId id="F12"/>
            </exerciseDate>
            <expirationDate>
                <value>2023-09-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Ordinary Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>98860.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The option exercises and sales 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">Includes 314 Ordinary Shares purchased by Reporting Person on January 31, 2023 under the Issuer's Employee Stock Purchase Plan. Such acquisition is exempt from reporting pursuant to Rule 16b-3 under theSecurities Exchange Act of 1934.</footnote>
        <footnote id="F3">This number reflects the deduction of two shares due to an accounting error.</footnote>
        <footnote id="F4">These Ordinary Shares were sold in multiple trades at prices ranging from $68.70 to $69.69. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.</footnote>
        <footnote id="F5">These Ordinary Shares were sold in multiple trades at prices ranging from $69.70 to $70.70. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.</footnote>
        <footnote id="F6">These Ordinary Shares were sold in multiple trades at prices ranging from $70.70 to $70.94. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.</footnote>
        <footnote id="F7">These Ordinary Shares were sold in multiple trades at prices ranging from $70.00 to $70.39. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.</footnote>
        <footnote id="F8">These Ordinary Shares were sold in multiple trades at prices ranging from $70.77 to $71.76. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.</footnote>
        <footnote id="F9">These Ordinary Shares were sold in multiple trades at prices ranging from $71.77 to $72.73. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.</footnote>
        <footnote id="F10">These Ordinary Shares were sold in multiple trades at prices ranging from $72.80 to $73.79. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.</footnote>
        <footnote id="F11">These Ordinary Shares were sold in multiple trades at prices ranging from $73.81 to $74.40. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.</footnote>
        <footnote id="F12">Options granted to the Reporting Person under the Issuer's 2012 Equity Incentive Plan are subject to a four-year vesting schedule. One quarter of the options vested on September 11, 2018, the remaining options vested in equal monthly installments over the 36 months following September 11, 2018.</footnote>
        <footnote id="F13">Options granted to the Reporting Person under the Issuer's 2012 Equity Incentive Plan are subject to a four-year vesting schedule. One quarter of the options vested on September 9, 2017, the remaining options vested in equal monthly installments over the 36 months following September 9, 2017.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Steven M. Haines, Attorney-in-Fact for William D. Mosley</signatureName>
        <signatureDate>2023-09-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
