<SEC-DOCUMENT>0001418812-23-000055.txt : 20231026
<SEC-HEADER>0001418812-23-000055.hdr.sgml : 20231026
<ACCEPTANCE-DATETIME>20231026165436
ACCESSION NUMBER:		0001418812-23-000055
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20231026
DATE AS OF CHANGE:		20231026

SUBJECT COMPANY:	

	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

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-31560
		FILM NUMBER:		231350848

	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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ValueAct Capital Master Fund, L.P.
		CENTRAL INDEX KEY:			0001464912
		IRS NUMBER:				980440869
		STATE OF INCORPORATION:			D8
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144

	BUSINESS ADDRESS:	
		STREET 1:		ONE LETTERMAN DRIVE
		STREET 2:		BUILDING D, 4TH FLOOR
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94129
		BUSINESS PHONE:		415-362-3700

	MAIL ADDRESS:	
		STREET 1:		ONE LETTERMAN DRIVE
		STREET 2:		BUILDING D, 4TH FLOOR
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94129
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001464912</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
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      <liveTestFlag>LIVE</liveTestFlag>



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  <formData>
    <issuerInfo>
      <issuerCik>0001137789</issuerCik>
      <issuerName>Seagate Technology Holdings plc</issuerName>
      <secFileNumber>001-31560</secFileNumber>
      <issuerAddress>
        <com:street1>38/39 FITZWILLIAM SQUARE</com:street1>
        <com:city>DUBLIN 2</com:city>
        <com:stateOrCountry>L2</com:stateOrCountry>
        <com:zipCode>D02 NX53</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>353-1234-3136</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>ValueAct Capital Master Fund, L.P.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>2.9%</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Ordinary Shares</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Morgan Stanley</name>
        <address>
          <com:street1>1585 Broadway</com:street1>
          <com:city>New York</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>10036</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>408000</noOfUnitsSold>
      <aggregateMarketValue>27376800.00</aggregateMarketValue>
      <noOfUnitsOutstanding>207393242</noOfUnitsOutstanding>
      <approxSaleDate>10/26/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Ordinary Shares</securitiesClassTitle>
      <acquiredDate>09/19/2016</acquiredDate>
      <natureOfAcquisitionTransaction>Open Market Sale</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>N/A</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>6264275</amountOfSecuritiesAcquired>
      <paymentDate>09/22/2016</paymentDate>
      <natureOfPayment>Regular way settlement</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>ValueAct Capital Master Fund, L.P.</name>
        <address>
          <com:street1>One Letterman Drive</com:street1>
          <com:street2>Building D, Fourth Floor</com:street2>
          <com:city>San Francisco</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94129</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Ordinary Shares</securitiesClassTitle>
      <saleDate>09/06/2023</saleDate>
      <amountOfSecuritiesSold>5750000</amountOfSecuritiesSold>
      <grossProceeds>396750000.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>ValueAct Capital Master Fund, L.P.</name>
        <address>
          <com:street1>One Letterman Drive</com:street1>
          <com:street2>Building D, Fourth Floor</com:street2>
          <com:city>San Francisco</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94129</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Ordinary Shares</securitiesClassTitle>
      <saleDate>10/16/2023</saleDate>
      <amountOfSecuritiesSold>181482</amountOfSecuritiesSold>
      <grossProceeds>12519562.61</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>ValueAct Capital Master Fund, L.P.</name>
        <address>
          <com:street1>One Letterman Drive</com:street1>
          <com:street2>Building D, Fourth Floor</com:street2>
          <com:city>San Francisco</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94129</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Ordinary Shares</securitiesClassTitle>
      <saleDate>10/17/2023</saleDate>
      <amountOfSecuritiesSold>1542691</amountOfSecuritiesSold>
      <grossProceeds>106412243.58</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>ValueAct Capital Master Fund, L.P.</name>
        <address>
          <com:street1>One Letterman Drive</com:street1>
          <com:street2>Building D, Fourth Floor</com:street2>
          <com:city>San Francisco</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94129</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Ordinary Shares</securitiesClassTitle>
      <saleDate>10/19/2023</saleDate>
      <amountOfSecuritiesSold>549</amountOfSecuritiesSold>
      <grossProceeds>37873.73</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>10/26/2023</noticeDate>
      <signature>/s Jason Breeding, Authorized Signatory</signature>
    </noticeSignature>
  </formData>
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</SEC-DOCUMENT>
