<SEC-DOCUMENT>0001193125-17-273194-index.html : 20170830
<SEC-HEADER>0001193125-17-273194.hdr.sgml : 20170830
<ACCEPTANCE-DATETIME>20170830162206
ACCESSION NUMBER:		0001193125-17-273194
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20170830
DATE AS OF CHANGE:		20170830
EFFECTIVENESS DATE:		20170830

FILER:

	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:			0630

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31560
		FILM NUMBER:		171060931

	BUSINESS ADDRESS:	
		STREET 1:		38/39 FITZWILLIAM SQUARE
		CITY:			DUBLIN 2
		STATE:			L2
		ZIP:			00000
		BUSINESS PHONE:		(353) (1) 234-3136

	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>DEFA14A
<SEQUENCE>1
<FILENAME>d448959ddefa14a.htm
<DESCRIPTION>DEFINITIVE ADDITIONAL MATERIALS
<TEXT>
Document 1 - file: d448959ddefa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g448959gra1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g448959gra1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g448959gra2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g448959gra2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g448959gra3.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g448959gra3.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g448959gra4.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g448959gra4.jpg

</DOCUMENT>
</SEC-DOCUMENT>