    <SEC-DOCUMENT>0001193125-21-260599-index.html : 20210830
    <SEC-HEADER>0001193125-21-260599.hdr.sgml : 20210830
    <ACCEPTANCE-DATETIME>20210830160729
    ACCESSION NUMBER:		0001193125-21-260599
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20210830
    DATE AS OF CHANGE:		20210830

    FILER:

    	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

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-31560
    		FILM NUMBER:		211223595

    	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>DEFA14A
    <SEQUENCE>1
    <FILENAME>d193166ddefa14a.htm
    <DESCRIPTION>DEFINITIVE ADDITIONAL MATERIALS
    <TEXT>
    Document 1 - file: d193166ddefa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g19316614w26.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g19316614w26.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g193166g15q25.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g193166g15q25.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>