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LAMBERT MICHAEL D

Disclosed activity across 1 company

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15901
SEC CIK
0001077820

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
WESTERN DIGITAL CORPWDC · Entity 1010DirectorNovember 07, 2019November 13, 2019

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

WESTERN DIGITAL CORP

Report date November 07, 2019 · Filed November 13, 2019

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect26,324 Reported balance After 2019-11-07 transaction · row 1
1 source row

Row 1 · 2019-11-07 · Exercise / conversion · Acquired 202 · Balance 26,324

F1: The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent.

Dividend Equivalent RightsSEC Table II · derivative / convertible securityDirect0 Reported balance After 2019-11-07 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2019-11-07 · Exercise / conversion · Disposed 202.915 · Balance 0

F1: The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent.

Filing footnotes · ownership attribution and instrument terms

F1: The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 21, 2014 Filed Aug 25, 2014 22:38 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 14,352 $100.37 $1,440,574.82
Disclosure

SEC source: 0001266824-14-000172 · edgardoc.xml · nonDerivative · entry 3

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,272

F1 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $100.03 to a high of $100.51. 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.

Read SEC document
August 21, 2014 Filed Aug 25, 2014 22:38 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 6,909 $38.53 $266,203.77
Disclosure

SEC source: 0001266824-14-000172 · edgardoc.xml · nonDerivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,624

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
August 21, 2014 Filed Aug 25, 2014 22:38 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 7,443 $32.99 $245,544.57
Disclosure

SEC source: 0001266824-14-000172 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,715

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
July 15, 2014 Filed Jul 17, 2014 00:46 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 32.3718 $0.00 $0.00
Disclosure

SEC source: 0001266824-14-000141 · edgardoc.xml · derivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 208.9008

Underlying: Common Stock · 32.3718 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

Read SEC document
April 15, 2014 Filed Apr 18, 2014 00:03 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 26.7264 $0.00 $0.00
Disclosure

SEC source: 0001266824-14-000076 · edgardoc.xml · derivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 176.529

Underlying: Common Stock · 26.7264 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

Read SEC document
January 15, 2014 Filed Jan 17, 2014 23:04 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 26.7533 $0.00 $0.00
Disclosure

SEC source: 0001266824-14-000019 · edgardoc.xml · derivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 149.8026

Underlying: Common Stock · 26.7533 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

Read SEC document
November 14, 2013 Filed Nov 15, 2013 01:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 2,966 $0.00 $0.00
Disclosure

SEC source: 0001266824-13-000192 · edgardoc.xml · nonDerivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,272

F1 · security: Represents the grant of restricted stock units to the reporting person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
November 12, 2013 Filed Nov 15, 2013 01:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 10,000 $71.85 $718,500.00
Disclosure

SEC source: 0001266824-13-000192 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,306

Read SEC document
November 11, 2013 Filed Nov 13, 2013 01:57 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 96.2099 $0.00 $0.00
Disclosure

SEC source: 0001266824-13-000174 · edgardoc.xml · derivative · entry 4

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123.0493

Underlying: Common Stock · 96.2099 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $15.02 was also paid to the holder to settle a fractional dividend equivalent of 0.2099.

F2 · derivative.exercise_date: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $15.02 was also paid to the holder to settle a fractional dividend equivalent of 0.2099.

F2 · derivative.expiration_date: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $15.02 was also paid to the holder to settle a fractional dividend equivalent of 0.2099.

Read SEC document
November 11, 2013 Filed Nov 13, 2013 01:57 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 96 $0.00 $0.00
Disclosure

SEC source: 0001266824-13-000174 · edgardoc.xml · nonDerivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,306

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $15.02 was also paid to the holder to settle a fractional dividend equivalent of 0.2099.

Read SEC document
November 08, 2013 Filed Nov 13, 2013 01:57 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 117.995 $0.00 $0.00
Disclosure

SEC source: 0001266824-13-000174 · edgardoc.xml · derivative · entry 3

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 219.2592

Underlying: Common Stock · 117.995 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $71.31 was also paid to the holder to settle a fractional dividend equivalent of 0.995.

F1 · derivative.exercise_date: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $71.31 was also paid to the holder to settle a fractional dividend equivalent of 0.995.

F1 · derivative.expiration_date: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $71.31 was also paid to the holder to settle a fractional dividend equivalent of 0.995.

Read SEC document
November 08, 2013 Filed Nov 13, 2013 01:57 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 117 $0.00 $0.00
Disclosure

SEC source: 0001266824-13-000174 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,210

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $71.31 was also paid to the holder to settle a fractional dividend equivalent of 0.995.

Read SEC document
October 15, 2013 Filed Oct 18, 2013 00:13 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 56.2572 $0.00 $0.00
Disclosure

SEC source: 0001266824-13-000148 · edgardoc.xml · derivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 337.2542

Underlying: Common Stock · 56.2572 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

Read SEC document
July 15, 2013 Filed Jul 17, 2013 22:51 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 56.1178 $0.00 $0.00
Disclosure

SEC source: 0001266824-13-000098 · edgardoc.xml · derivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 280.997

Underlying: Common Stock · 56.1178 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

Read SEC document
May 09, 2013 Filed May 10, 2013 22:21 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 7,364 $0.00 Strike: $27.64 $0.00
Disclosure

SEC source: 0001266824-13-000064 · edgardoc.xml · derivative · entry 5

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,364 shares

Expires 2014-11-06

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option vested 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

Read SEC document
May 09, 2013 Filed May 10, 2013 22:21 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 16,743 $0.00 Strike: $15.34 $0.00
Disclosure

SEC source: 0001266824-13-000064 · edgardoc.xml · derivative · entry 4

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,743 shares

Expires 2015-11-06

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option vested 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

Read SEC document
May 09, 2013 Filed May 10, 2013 22:21 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 24,107 $57.34 $1,382,225.47
Disclosure

SEC source: 0001266824-13-000064 · edgardoc.xml · nonDerivative · entry 3

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,093

F1 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $57.28 to a high of $57.52. 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.

Read SEC document
May 09, 2013 Filed May 10, 2013 22:21 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 7,364 $27.64 $203,540.96
Disclosure

SEC source: 0001266824-13-000064 · edgardoc.xml · nonDerivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,200

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 09, 2013 Filed May 10, 2013 22:21 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 16,743 $15.34 $256,837.62
Disclosure

SEC source: 0001266824-13-000064 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,836

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
April 15, 2013 Filed Apr 17, 2013 00:12 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 74.4889 $0.00 $0.00
Disclosure

SEC source: 0001266824-13-000044 · edgardoc.xml · derivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 224.8792

Underlying: Common Stock · 74.4889 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

Read SEC document
February 14, 2013 Filed Feb 16, 2013 00:33 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 9,185 $0.00 Strike: $19.09 $0.00
Disclosure

SEC source: 0001266824-13-000012 · edgardoc.xml · derivative · entry 5

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,185 shares

Expires 2017-02-06

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option vested 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

Read SEC document
February 14, 2013 Filed Feb 16, 2013 00:33 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 12,500 $0.00 Strike: $13.76 $0.00
Disclosure

SEC source: 0001266824-13-000012 · edgardoc.xml · derivative · entry 4

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,500 shares

Expires 2015-11-17

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option vested 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

Read SEC document
February 14, 2013 Filed Feb 16, 2013 00:33 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 21,685 $48.85 $1,059,370.80
Disclosure

SEC source: 0001266824-13-000012 · edgardoc.xml · nonDerivative · entry 3

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,093

F1 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $48.85 to a high of $48.871. 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.

Read SEC document
February 14, 2013 Filed Feb 16, 2013 00:33 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 12,500 $13.76 $172,000.00
Disclosure

SEC source: 0001266824-13-000012 · edgardoc.xml · nonDerivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,778

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 14, 2013 Filed Feb 16, 2013 00:33 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 9,185 $19.09 $175,341.65
Disclosure

SEC source: 0001266824-13-000012 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,278

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 26, 2012 Filed Dec 29, 2012 01:21 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 90.0057 $0.00 $0.00
Disclosure

SEC source: 0001363249-12-000027 · edgardoc.xml · derivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150.3903

Underlying: Common Stock · 90.0057 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

Read SEC document
December 20, 2012 Filed Dec 21, 2012 23:44 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 11,484 $42.03 $482,692.04
Disclosure

SEC source: 0001266824-12-000134 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,093

Read SEC document
November 11, 2012 Filed Nov 14, 2012 00:45 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 22.6853 $0.00 $0.00
Disclosure

SEC source: 0001266824-12-000116 · edgardoc.xml · derivative · entry 3

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60.3846

Underlying: Common Stock · 22.6853 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $24.06 was also paid to the holder to settle a fractional dividend equivalent of 0.6853.

F2 · derivative.exercise_date: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $24.06 was also paid to the holder to settle a fractional dividend equivalent of 0.6853.

F2 · derivative.expiration_date: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $24.06 was also paid to the holder to settle a fractional dividend equivalent of 0.6853.

Read SEC document
November 11, 2012 Filed Nov 14, 2012 00:45 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 22 $0.00 $0.00
Disclosure

SEC source: 0001266824-12-000116 · edgardoc.xml · nonDerivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,577

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $24.06 was also paid to the holder to settle a fractional dividend equivalent of 0.6853.

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November 08, 2012 Filed Nov 14, 2012 00:45 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 6,458 $0.00 $0.00
Disclosure

SEC source: 0001266824-12-000116 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,555

F1 · security: Represents the grant of restricted stock units to the reporting person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

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October 15, 2012 Filed Oct 18, 2012 00:44 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 83.0699 $0.00 $0.00
Disclosure

SEC source: 0001266824-12-000092 · edgardoc.xml · derivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83.0699

Underlying: Common Stock · 83.0699 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.

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November 10, 2011 Filed Nov 15, 2011 00:20 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantNon-Qualified Stock Option (right to buy) · Derivative 11,542 $0.00 Strike: $25.79 $0.00
Disclosure

SEC source: 0001266824-11-000050 · edgardoc.xml · derivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,542

Underlying: Common Stock · 11,542 shares

Expires 2018-11-10

F2 · derivative.exercise_date: The option vests 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

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November 10, 2011 Filed Nov 15, 2011 00:20 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 4,846 $0.00 $0.00
Disclosure

SEC source: 0001266824-11-000050 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,097

F1 · security: Represents the grant of restricted stock units to the reporting person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
November 11, 2010 Filed Nov 13, 2010 01:08 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantNon-Qualified Stock Option (right to buy) · Derivative 8,506 $0.00 Strike: $32.99 $0.00
Disclosure

SEC source: 0001363249-10-000043 · edgardoc.xml · derivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,506

Underlying: Common Stock · 8,506 shares

Expires 2017-11-11

F2 · derivative.exercise_date: The option vests 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

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November 11, 2010 Filed Nov 13, 2010 01:08 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 3,789 $0.00 $0.00
Disclosure

SEC source: 0001363249-10-000043 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,251

F1 · security: Represents the grant of restricted stock units to the reporting person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
December 17, 2009 Filed Dec 22, 2009 00:40 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 10,000 $0.00 Strike: $11.61 $0.00
Disclosure

SEC source: 0001266824-09-000098 · edgardoc.xml · derivative · entry 5

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2013-11-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option vested 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

Read SEC document
December 17, 2009 Filed Dec 22, 2009 00:40 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 10,000 $0.00 Strike: $9.21 $0.00
Disclosure

SEC source: 0001266824-09-000098 · edgardoc.xml · derivative · entry 4

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2014-11-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option vested 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

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December 17, 2009 Filed Dec 22, 2009 00:40 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 30,000 $41.85 $1,255,413.00
Disclosure

SEC source: 0001266824-09-000098 · edgardoc.xml · nonDerivative · entry 3

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,462

F1 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $41.69 to a high of $41.93. 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.

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December 17, 2009 Filed Dec 22, 2009 00:40 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 10,000 $9.21 $92,100.00
Disclosure

SEC source: 0001266824-09-000098 · edgardoc.xml · nonDerivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,462

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 17, 2009 Filed Dec 22, 2009 00:40 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 10,000 $11.61 $116,100.00
Disclosure

SEC source: 0001266824-09-000098 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,462

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 17, 2009 Filed Nov 19, 2009 23:48 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 10,000 $0.00 Strike: $7.91 $0.00
Disclosure

SEC source: 0001266824-09-000065 · edgardoc.xml · derivative · entry 5

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2012-11-14

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option vested 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

Read SEC document
November 17, 2009 Filed Nov 19, 2009 23:48 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 10,000 $0.00 Strike: $4.40 $0.00
Disclosure

SEC source: 0001266824-09-000065 · edgardoc.xml · derivative · entry 4

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2012-08-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option vested 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

Read SEC document
November 17, 2009 Filed Nov 19, 2009 23:48 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 20,000 $38.71 $774,146.00
Disclosure

SEC source: 0001266824-09-000065 · edgardoc.xml · nonDerivative · entry 3

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,538

F1 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $38.70 to a high of $38.70821. 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.

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November 17, 2009 Filed Nov 19, 2009 23:48 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 10,000 $7.91 $79,100.00
Disclosure

SEC source: 0001266824-09-000065 · edgardoc.xml · nonDerivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,538

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 17, 2009 Filed Nov 19, 2009 23:48 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 10,000 $4.40 $44,000.00
Disclosure

SEC source: 0001266824-09-000065 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,538

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 11, 2009 Filed Nov 13, 2009 23:39 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantNon-Qualified Stock Option (right to buy) · Derivative 6,909 $0.00 Strike: $38.53 $0.00
Disclosure

SEC source: 0001266824-09-000055 · edgardoc.xml · derivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,909

Underlying: Common Stock · 6,909 shares

Expires 2016-11-11

F2 · derivative.exercise_date: The option vests 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

Read SEC document
November 11, 2009 Filed Nov 13, 2009 23:39 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 3,320 $0.00 $0.00
Disclosure

SEC source: 0001266824-09-000055 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,538

F1 · security: Represents the grant of restricted stock units to the reporting person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
November 11, 2009 Filed Nov 25, 2009 23:27 UTC Amendment WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 3,244 $0.00 $0.00
Disclosure

SEC source: 0001266824-09-000080 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,462

F1 · security: Represents the grant of restricted stock units to the reporting person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F2 · shares: Amended filing to reflect the correct number of restricted stock units granted to the reporting person.

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November 06, 2008 Filed Nov 10, 2008 23:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantNon-Qualified Stock Option (right to buy) · Derivative 16,743 $0.00 Strike: $15.34 $0.00
Disclosure

SEC source: 0001266824-08-000095 · edgardoc.xml · derivative · entry 2

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,743

Underlying: Common Stock · 16,743 shares

Expires 2015-11-06

F2 · derivative.exercise_date: The option vests 25% on the first anniversary of the grant date and 6.25% at the end of each three-month period thereafter.

Read SEC document
November 06, 2008 Filed Nov 10, 2008 23:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 8,148 $0.00 $0.00
Disclosure

SEC source: 0001266824-08-000095 · edgardoc.xml · nonDerivative · entry 1

LAMBERT MICHAEL D · CIK 0001077820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,218

F1 · security: Represents the grant of restricted stock units to the reporting person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.