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Filing Details

Accession Number:: 0001266824-17-000093
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2017-05-02 19:23:24
Reporting Period:: 2017-05-01

Filing Date:: 2017-05-02
Accepted Time:: 2017-05-02 19:23:24
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
106040	Western Digital Corp	WDC	Computer Storage Devices (3572)	330956711

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1593123	P Mark Long	C/O Western Digital Corporation 5601 Great Oaks Parkway San Jose CA 95119	Pres Wd Capital, Cso & Cfo	No	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2017-05-01	15,774	$48.63	114,522	No	4	M	Direct
Common Stock	Acquisiton	2017-05-01	11,632	$68.49	126,154	No	4	M	Direct
Common Stock	Disposition	2017-05-01	43,000	$86.77	83,154	No	4	S	Direct
Common Stock	Disposition	2017-05-01	14,446	$87.74	68,708	No	4	S	Direct
Common Stock	Disposition	2017-05-01	400	$88.28	68,308	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (right to buy)	Disposition	2017-05-01	15,774	$0.00	15,774	$48.63
Common Stock	Employee Stock Option (right to buy)	Disposition	2017-05-01	11,632	$0.00	11,632	$68.49

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2014-02-13	2020-02-13	No	4	M	Direct
17,699	2014-08-14	2020-08-14	No	4	M	Direct

Footnotes

These transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 16, 2017.
Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $86.22 to a high of $87.20. 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.
Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $87.25 to a high of $88.18. 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.
Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $88.25 to a high of $88.31. 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.
The option vested 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.
The option vested 25% one year from the grant date of 8/14/2013, and an additional 6.25% vested at the end of each three-month period through 2/14/2017. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 8/14/2017.