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: WELSH JAMES K (EVP & GM, Branded Products)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-16	Common Stock	A	17517	—	Acquired	65459	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	41652	Acquired	2019-05-16	Common Stock (41652)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1450	Indirect

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