WESTERN DIGITAL CORP — Director's Dealing 2012

May 18, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTERN DIGITAL CORP (WDC)
CIK: 0000106040
Period of Report: 2012-05-16

Reporting Person: CARRILLO JOSEPH R (Principal Accounting Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-16	Common Stock	A	5630	—	Acquired	91932	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-16	Employee Stock Option (right to buy)	$38.63	A	13388	Acquired	2019-05-16	Common Stock (13388)	Direct

Footnotes

F1: Represents the grant of restricted stock units to the reporting person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F2: Includes 52 shares acquired under the issuer's Employee Stock Purchase Plan on November 30, 2011.

F3: The option vests 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.