<SEC-DOCUMENT>0001206774-18-002862-index.html : 20180928
<SEC-HEADER>0001206774-18-002862.hdr.sgml : 20180928
<ACCEPTANCE-DATETIME>20180928161624
ACCESSION NUMBER:		0001206774-18-002862
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20180928
DATE AS OF CHANGE:		20180928
EFFECTIVENESS DATE:		20180928

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESTERN DIGITAL CORP
		CENTRAL INDEX KEY:			0000106040
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER STORAGE DEVICES [3572]
		IRS NUMBER:				330956711
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0628

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08703
		FILM NUMBER:		181094362

	BUSINESS ADDRESS:	
		STREET 1:		5601 GREAT OAKS PARKWAY
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95119
		BUSINESS PHONE:		9496727000

	MAIL ADDRESS:	
		STREET 1:		3355 MICHELSON DRIVE SUITE 100
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92612

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GENERAL DIGITAL CORP
		DATE OF NAME CHANGE:	19730125
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>wdc3402761-defa14a.htm
<DESCRIPTION>DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS
<TEXT>
Document 1 - file: wdc3402761-defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>wdc3402761-defa14ax1x2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: wdc3402761-defa14ax1x2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>wdc3402761-defa14ax1x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: wdc3402761-defa14ax1x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>wdc3402761-defa14ax2x2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: wdc3402761-defa14ax2x2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>wdc3402761-defa14ax2x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: wdc3402761-defa14ax2x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>wdc3402761-defa14ax3x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: wdc3402761-defa14ax3x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>wdc3402761-defa14ax4x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: wdc3402761-defa14ax4x1.jpg

</DOCUMENT>
</SEC-DOCUMENT>