WESTERN DIGITAL CORP — Director's Dealing 2017

Dec 22, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTERN DIGITAL CORP (WDC)
CIK: 0000106040
Period of Report: 2017-12-19

Reporting Person: CORDANO MICHAEL D (President and COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-12-19	Common Stock	M	1401	$68.53	Acquired	70560	Direct
2017-12-19	Common Stock	S	1401	$85.0	Disposed	69159	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-12-19	Employee Stock Option (right to buy)	$68.53	M	1401	Disposed	2022-11-03	Common Stock (1401)	Direct

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 August 8, 2016.

F2: The option vested 25% one year from the grant date of 11/3/2015, and an additional 6.25% vested at the end of each three-month period through 11/3/2017. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 11/3/2019.