WESTERN DIGITAL CORP — Director's Dealing 2018

Mar 14, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTERN DIGITAL CORP (WDC)
CIK: 0000106040
Period of Report: 2018-03-09

Reporting Person: MILLIGAN STEPHEN D (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-03-09	Common Stock	S	2291	$99.31	Disposed	68114	Direct
2018-03-12	Common Stock	M	50973	$68.49	Acquired	119087	Direct
2018-03-12	Common Stock	S	50973	$100.1605	Disposed	68114	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-03-12	Employee Stock Option (right to buy)	$68.49	M	50973	Disposed	2020-08-14	Common Stock (50973)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	69311	Indirect

Footnotes

F1: These transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 30, 2017.

F2: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $100 to a high of $100.34. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

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