WELSH JAMES K 4

4 · WESTERN DIGITAL CORP · Filed Aug 6, 2012

Insider Transaction Report

Form 4

Period: 2012-08-03

WESTERN DIGITAL CORPWDC

WELSH JAMES K

EVP & GM, Branded Products

Transactions

Exercise/Conversion
Common Stock
2012-08-03$16.85/sh+4,500$75,825→ 74,498 total
Exercise/Conversion
Employee Stock Option (right to buy)
2012-08-06−4,500→ 9,001 total
Exercise: $16.85From: 2010-02-04Exp: 2016-02-04→ Common Stock (4,500 underlying)
Exercise/Conversion
Common Stock
2012-08-03$23.78/sh+2,133$50,723→ 67,592 total
Sale
Common Stock
2012-08-03$40.67/sh−9,039$367,620→ 65,459 total
Exercise/Conversion
Employee Stock Option (right to buy)
2012-08-03−4,500→ 13,501 total
Exercise: $16.85From: 2010-02-04Exp: 2016-02-04→ Common Stock (4,500 underlying)
Exercise/Conversion
Employee Stock Option (right to buy)
2012-08-03−2,406→ 27,711 total
Exercise: $26.17From: 2011-09-08Exp: 2017-09-08→ Common Stock (2,406 underlying)
Exercise/Conversion
Employee Stock Option (right to buy)
2012-08-06−461→ 27,250 total
Exercise: $26.17From: 2011-09-08Exp: 2017-09-08→ Common Stock (461 underlying)
Exercise/Conversion
Common Stock
2012-08-03$26.17/sh+2,406$62,965→ 69,998 total
Exercise/Conversion
Common Stock
2012-08-06$26.17/sh+461$12,064→ 70,420 total
Exercise/Conversion
Common Stock
2012-08-06$16.85/sh+4,500$75,825→ 69,959 total
Sale
Common Stock
2012-08-06$41.16/sh−4,961$204,204→ 65,459 total
Exercise/Conversion
Employee Stock Option (right to buy)
2012-08-03−2,133→ 2,133 total
Exercise: $23.78From: 2009-09-11Exp: 2015-09-11→ Common Stock (2,133 underlying)

Holdings

Common Stock
(indirect: By Spouse)
1,450

Footnotes (6)

[F1]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $40.62 to a high of $40.75. 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.
[F2]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $41.16 to a high of $41.162. 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% one year from the grant date of 2/4/2009, and an additional 6.25% vested at the end of each three-month period through 5/4/2012. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 2/4/2013.
[F4]The option vested 25% one year from the grant date of 2/4/2009, and an additional 6.25% vested at the end of each three-month period through 8/4/2012. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 2/4/2013.
[F5]The option vested 25% one year from the grant date of 9/11/2008, and an additional 6.25% vested at the end of each three-month period through 6/11/2012. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 9/11/2012.
[F6]The option vested 25% one year from the grant date of 9/8/2010, and an additional 6.25% vested at the end of each three-month period through 6/8/2012. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 9/8/2014.

Documents

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edgardoc.xmlPrimary
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