SEC Form 4 · accession 0001266824-15-000057

WESTERN DIGITAL CORP · WDC

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Sr. VP, Gen Cnsl & Secretary

Period of report

Mar 17, 2015

Accepted (ET)

Mar 18, 2015 · 8:43 pm EDT

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0000106040

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock	Mar 17, 2015	M	1,825	$29.60	A	22,392	D
Common Stock	Mar 17, 2015	M	1,863	$43.11	A	24,255	D
Common Stock	Mar 17, 2015	S	3,688	$97.53	D	20,567	D
Common Stock	holding	—	—		—	8	I	by Trust 401(K)

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Employee Stock Option (right to buy)^F2	$29.60	Mar 17, 2015	M	1,825	D	Sep 14, 2012	Sep 14, 2018	Common Stock	1,825	3,651	D
Employee Stock Option (right to buy)^F3	$43.11	Mar 17, 2015	M	1,863	D	Sep 6, 2013	Sep 6, 2019	Common Stock	1,863	11,177	D

F1These transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 2, 2014.
F2The option vested 25% one year from the grant date of 9/14/2011, and an additional 6.25% vested at the end of each three-month period through 3/14/2015. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 9/14/2015.
F3The option vested 25% one year from the grant date of 9/6/2012, and an additional 6.25% vested at the end of each three-month period through 3/6/2015. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 9/6/2016.