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person · Reporting owner

MASSENGILL MATTHEW E

Disclosed activity across 3 companies

Tapewire entity
11306
SEC CIK
0001232826

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MICROSEMI CORPMSCC · Entity 166236DirectorMay 29, 2018May 30, 2018
Sandisk CorpSNDK · Entity 1106DirectorMarch 03, 2025March 05, 2025
WESTERN DIGITAL CORPWDC · Entity 1010DirectorSeptember 17, 2026September 21, 2026

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.

MICROSEMI CORP

Report date May 29, 2018 · Filed May 30, 2018

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Microsemi Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2018-05-29 transaction · row 1
1 source row

Row 1 · 2018-05-29 · Disposition to issuer · Disposed 3,255 · Balance 0

F1: Shares disposed of pursuant to the Agreement and Plan of Merger by and among Microchip Technology Incorporated ("Microchip") , Maple Acquisition Corporation and Microsemi Corporation (the "Merger Agreement" and, the transaction contemplated therein, the "Merger"), whereby each share of Issuer's common stock was automatically cancelled and converted into the right to an amount equal to $68.78 in cash (the "Merger Consideration").

Microsemi Common StockSEC Table I · non-derivativeIndirectBy Revocable Living Trust0 Reported balance After 2018-05-29 transaction · row 2 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 2 · 2018-05-29 · Disposition to issuer · Disposed 17,258 · Balance 0

F1: Shares disposed of pursuant to the Agreement and Plan of Merger by and among Microchip Technology Incorporated ("Microchip") , Maple Acquisition Corporation and Microsemi Corporation (the "Merger Agreement" and, the transaction contemplated therein, the "Merger"), whereby each share of Issuer's common stock was automatically cancelled and converted into the right to an amount equal to $68.78 in cash (the "Merger Consideration").

Filing footnotes · ownership attribution and instrument terms

F1: Shares disposed of pursuant to the Agreement and Plan of Merger by and among Microchip Technology Incorporated ("Microchip") , Maple Acquisition Corporation and Microsemi Corporation (the "Merger Agreement" and, the transaction contemplated therein, the "Merger"), whereby each share of Issuer's common stock was automatically cancelled and converted into the right to an amount equal to $68.78 in cash (the "Merger Consideration").

Sandisk Corp

Report date March 03, 2025 · Filed March 05, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect4,840 Reported balance After 2025-03-03 transaction · row 1
1 source row

Row 1 · 2025-03-03 · Grant · Acquired 4,840 · Balance 4,840

F1: 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.

Common StockSEC Table I · non-derivativeIndirectBy Family Trust12,308 Reported balance Holding disclosure · report date 2025-03-03 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 12,308

F2: The reporting person acquired these shares of Sandisk Common Stock in connection with the spin-off from Western Digital Corporation ("WDC") effective February 21, 2025 (the "Spin-Off"), as further described in the Issuer's current report on Form 8-K filed on February 24, 2025, where each WDC shareholder received one-third (1/3) of one share of Sandisk Common Stock for each share of WDC common stock held. Such acquisition was exempt from Section 16 of the Securities Exchange Act of 1934, as amended("Exchange Act") pursuant to Rule 16a-9 under the Exchange Act.

Common StockSEC Table I · non-derivativeIndirectBy IRA166 Reported balance Holding disclosure · report date 2025-03-03 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 166

F2: The reporting person acquired these shares of Sandisk Common Stock in connection with the spin-off from Western Digital Corporation ("WDC") effective February 21, 2025 (the "Spin-Off"), as further described in the Issuer's current report on Form 8-K filed on February 24, 2025, where each WDC shareholder received one-third (1/3) of one share of Sandisk Common Stock for each share of WDC common stock held. Such acquisition was exempt from Section 16 of the Securities Exchange Act of 1934, as amended("Exchange Act") pursuant to Rule 16a-9 under the Exchange Act.

Filing footnotes · ownership attribution and instrument terms

F1: 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: The reporting person acquired these shares of Sandisk Common Stock in connection with the spin-off from Western Digital Corporation ("WDC") effective February 21, 2025 (the "Spin-Off"), as further described in the Issuer's current report on Form 8-K filed on February 24, 2025, where each WDC shareholder received one-third (1/3) of one share of Sandisk Common Stock for each share of WDC common stock held. Such acquisition was exempt from Section 16 of the Securities Exchange Act of 1934, as amended("Exchange Act") pursuant to Rule 16a-9 under the Exchange Act.

WESTERN DIGITAL CORP

Report date September 17, 2026 · Filed September 21, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Dividend Equivalent RightsSEC Table II · derivative / convertible securityDirect121.1113 Reported balance After 2026-09-17 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-09-17 · Grant · Acquired 10.2654 · Balance 121.1113

F1: 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.

Filing footnotes · ownership attribution and instrument terms

F1: 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.

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
November 01, 2017 Filed Nov 4, 2017 01:12 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 120.8684 $0.00 $0.00
Disclosure

SEC source: 0001266824-17-000233 · edgardoc.xml · derivative · entry 4

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 120.8684 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 $77.50 was also paid to the holder to settle a fractional dividend equivalent of 0.8684.

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 $77.50 was also paid to the holder to settle a fractional dividend equivalent of 0.8684.

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 $77.50 was also paid to the holder to settle a fractional dividend equivalent of 0.8684.

Read SEC document
November 01, 2017 Filed Nov 4, 2017 01:12 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 120 $0.00 $0.00
Disclosure

SEC source: 0001266824-17-000233 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,163

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 $77.50 was also paid to the holder to settle a fractional dividend equivalent of 0.8684.

Read SEC document
October 30, 2017 Filed Nov 2, 2017 01:21 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 2,164 $0.00 Strike: $25.79 $0.00
Disclosure

SEC source: 0001363249-17-000007 · edgardoc.xml · derivative · entry 3

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,164 shares

Expires 2018-11-10

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_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
October 30, 2017 Filed Nov 2, 2017 01:21 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 2,164 $25.79 $55,809.56
Disclosure

SEC source: 0001363249-17-000007 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,043

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
October 16, 2017 Filed Oct 17, 2017 01:57 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 29.3076 $0.00 $0.00
Disclosure

SEC source: 0001266824-17-000215 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 120.8684

Underlying: Common Stock · 29.3076 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 17, 2017 Filed Jul 20, 2017 00:07 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 26.7675 $0.00 $0.00
Disclosure

SEC source: 0001266824-17-000142 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91.5608

Underlying: Common Stock · 26.7675 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 17, 2017 Filed Apr 20, 2017 00:51 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 29.9008 $0.00 $0.00
Disclosure

SEC source: 0001266824-17-000082 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64.7933

Underlying: Common Stock · 29.9008 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 15, 2017 Filed Feb 16, 2017 18:22 UTC MICROSEMI CORP MSCC · Entity 166236 SaleMicrosemi Common Stock 1,868 $53.77 $100,451.14
Disclosure

SEC source: 0000310568-17-000031 · wf-form4_148728732593888.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,704

F2 · security: This transaction was executed pursuant to a 10b5-1 plan.

Read SEC document
February 14, 2017 Filed Feb 16, 2017 18:22 UTC MICROSEMI CORP MSCC · Entity 166236 GrantMicrosemi Common Stock 3,572 $0.00 $0.00
Disclosure

SEC source: 0000310568-17-000031 · wf-form4_148728732593888.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,572

F1 · security: Annual award of stock by Microsemi Corporation pursuant to its non-employee director compensation policy.

Read SEC document
January 17, 2017 Filed Jan 20, 2017 00:53 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 34.8925 $0.00 $0.00
Disclosure

SEC source: 0001266824-17-000031 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34.8925

Underlying: Common Stock · 34.8925 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 07, 2016 Filed Nov 9, 2016 01:51 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 700 $57.74 $40,421.01
Disclosure

SEC source: 0001266824-16-000449 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,879

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 17, 2016.

F3 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $57.61 to a high of $57.93. 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.

Read SEC document
November 07, 2016 Filed Nov 9, 2016 01:51 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,487 $57.11 $84,926.88
Disclosure

SEC source: 0001266824-16-000449 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,579

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 17, 2016.

F2 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $56.40 to a high of $57.32. 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
November 04, 2016 Filed Nov 8, 2016 00:36 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 4,998 $0.00 $0.00
Disclosure

SEC source: 0001266824-16-000442 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,066

F2 · 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 03, 2016 Filed Nov 8, 2016 00:36 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 171.1796 $0.00 $0.00
Disclosure

SEC source: 0001266824-16-000442 · edgardoc.xml · derivative · entry 4

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 171.1796 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 $9.90 was also paid to the holder to settle a fractional dividend equivalent of 0.1796.

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 $9.90 was also paid to the holder to settle a fractional dividend equivalent of 0.1796.

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 $9.90 was also paid to the holder to settle a fractional dividend equivalent of 0.1796.

Read SEC document
November 03, 2016 Filed Nov 8, 2016 00:36 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 171 $0.00 $0.00
Disclosure

SEC source: 0001266824-16-000442 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,068

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 $9.90 was also paid to the holder to settle a fractional dividend equivalent of 0.1796.

Read SEC document
October 17, 2016 Filed Oct 20, 2016 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 38.9547 $0.00 $0.00
Disclosure

SEC source: 0001266824-16-000419 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 171.1796

Underlying: Common Stock · 38.9547 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, 2016 Filed Jul 20, 2016 01:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 39.7164 $0.00 $0.00
Disclosure

SEC source: 0001266824-16-000335 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132.2249

Underlying: Common Stock · 39.7164 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, 2016 Filed Apr 19, 2016 00:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 50.0551 $0.00 $0.00
Disclosure

SEC source: 0001266824-16-000294 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92.5085

Underlying: Common Stock · 50.0551 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, 2016 Filed Jan 21, 2016 01:37 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 42.4534 $0.00 $0.00
Disclosure

SEC source: 0001266824-16-000262 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42.4534

Underlying: Common Stock · 42.4534 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 06, 2015 Filed Nov 10, 2015 23:16 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,187 $67.75 $80,424.83
Disclosure

SEC source: 0001266824-15-000232 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,897

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2015.

F2 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $67.29 to a high of $68.15. 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
November 04, 2015 Filed Nov 6, 2015 01:22 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 4,011 $0.00 $0.00
Disclosure

SEC source: 0001266824-15-000227 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,084

F2 · 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 03, 2015 Filed Nov 6, 2015 01:22 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 48.0185 $0.00 $0.00
Disclosure

SEC source: 0001266824-15-000227 · edgardoc.xml · derivative · entry 4

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 48.0185 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 $1.27 was also paid to the holder to settle a fractional dividend equivalent of 0.0185.

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 $1.27 was also paid to the holder to settle a fractional dividend equivalent of 0.0185.

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 $1.27 was also paid to the holder to settle a fractional dividend equivalent of 0.0185.

Read SEC document
November 03, 2015 Filed Nov 6, 2015 01:22 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 48 $0.00 $0.00
Disclosure

SEC source: 0001266824-15-000227 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,073

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 $1.27 was also paid to the holder to settle a fractional dividend equivalent of 0.0185.

Read SEC document
October 15, 2015 Filed Oct 20, 2015 00:36 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 13.8999 $0.00 $0.00
Disclosure

SEC source: 0001266824-15-000201 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48.0185

Underlying: Common Stock · 13.8999 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, 2015 Filed Jul 16, 2015 21:48 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 14.2387 $0.00 $0.00
Disclosure

SEC source: 0001266824-15-000131 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34.1186

Underlying: Common Stock · 14.2387 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 16, 2015 Filed Apr 20, 2015 22:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 11.3947 $0.00 $0.00
Disclosure

SEC source: 0001266824-15-000085 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19.8799

Underlying: Common Stock · 11.3947 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 12, 2015 Filed Feb 18, 2015 01:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 2,126 $0.00 Strike: $32.99 $0.00
Disclosure

SEC source: 0001266824-15-000038 · edgardoc.xml · derivative · entry 6

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,126 shares

Expires 2017-11-11

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.

F4 · 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 12, 2015 Filed Feb 18, 2015 01:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 3,607 $0.00 Strike: $25.79 $0.00
Disclosure

SEC source: 0001266824-15-000038 · edgardoc.xml · derivative · entry 5

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,164

Underlying: Common Stock · 3,607 shares

Expires 2018-11-10

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.

F3 · derivative.exercise_date: The option vested 25% one year from the grant date of 11/10/2011, and an additional 6.25% vested at the end of the three-month period on 2/10/2015. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 11/10/2015.

Read SEC document
February 12, 2015 Filed Feb 18, 2015 01:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 3,507 $107.36 $376,501.70
Disclosure

SEC source: 0001266824-15-000038 · edgardoc.xml · nonDerivative · entry 4

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by IRA

Disclosed balance after: 500

F2 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $107.354 to a high of $107.374. 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 12, 2015 Filed Feb 18, 2015 01:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 5,733 $107.21 $614,658.44
Disclosure

SEC source: 0001266824-15-000038 · edgardoc.xml · nonDerivative · entry 3

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,025

F1 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $107.21 to a high of $107.2501. 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 12, 2015 Filed Feb 18, 2015 01:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 3,607 $25.79 $93,024.53
Disclosure

SEC source: 0001266824-15-000038 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,758

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 12, 2015 Filed Feb 18, 2015 01:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 2,126 $32.99 $70,136.74
Disclosure

SEC source: 0001266824-15-000038 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,151

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
January 15, 2015 Filed Jan 21, 2015 01:45 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 8.4852 $0.00 $0.00
Disclosure

SEC source: 0001266824-15-000024 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8.4852

Underlying: Common Stock · 8.4852 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 11, 2014 Filed Nov 13, 2014 00:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 2,639 $97.18 $256,458.55
Disclosure

SEC source: 0001266824-14-000272 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,025

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 6, 2014.

F3 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $96.66 to a high of $97.64. 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
November 10, 2014 Filed Nov 13, 2014 00:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 200.4197 $0.00 $0.00
Disclosure

SEC source: 0001266824-14-000272 · edgardoc.xml · derivative · entry 4

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 200.4197 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 $40.98 was also paid to the holder to settle a fractional dividend equivalent of 0.4197.

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 $40.98 was also paid to the holder to settle a fractional dividend equivalent of 0.4197.

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 $40.98 was also paid to the holder to settle a fractional dividend equivalent of 0.4197.

Read SEC document
November 10, 2014 Filed Nov 13, 2014 00:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 200 $0.00 $0.00
Disclosure

SEC source: 0001266824-14-000272 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,664

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 $40.98 was also paid to the holder to settle a fractional dividend equivalent of 0.4197.

Read SEC document
November 05, 2014 Filed Nov 7, 2014 01:07 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,575 $100.62 $158,477.76
Disclosure

SEC source: 0001266824-14-000257 · edgardoc.xml · nonDerivative · entry 3

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,464

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 6, 2014.

F4 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $100.21 to a high of $100.89. 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
November 05, 2014 Filed Nov 7, 2014 01:07 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 2,221 $0.00 $0.00
Disclosure

SEC source: 0001266824-14-000257 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,039

F2 · 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 04, 2014 Filed Nov 7, 2014 01:07 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 46.1821 $0.00 $0.00
Disclosure

SEC source: 0001266824-14-000257 · edgardoc.xml · derivative · entry 5

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200.4197

Underlying: Common Stock · 46.1821 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 $18.21 was also paid to the holder to settle a fractional dividend equivalent of 0.1821.

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 $18.21 was also paid to the holder to settle a fractional dividend equivalent of 0.1821.

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 $18.21 was also paid to the holder to settle a fractional dividend equivalent of 0.1821.

Read SEC document
November 04, 2014 Filed Nov 7, 2014 01:07 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 46 $0.00 $0.00
Disclosure

SEC source: 0001266824-14-000257 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,818

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 $18.21 was also paid to the holder to settle a fractional dividend equivalent of 0.1821.

Read SEC document
October 15, 2014 Filed Oct 17, 2014 00:57 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 37.701 $0.00 $0.00
Disclosure

SEC source: 0001266824-14-000232 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 246.6018

Underlying: Common Stock · 37.701 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, 2014 Filed Jul 17, 2014 00:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 32.3718 $0.00 $0.00
Disclosure

SEC source: 0001266824-14-000143 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · 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: 0001266824-14-000078 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · 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: 0001266824-14-000021 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · 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 15, 2013 Filed Nov 19, 2013 23:10 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 6,909 $0.00 Strike: $38.53 $0.00
Disclosure

SEC source: 0001266824-13-000204 · edgardoc.xml · derivative · entry 12

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,909 shares

Expires 2016-11-11

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 15, 2013 Filed Nov 19, 2013 23:10 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 6,380 $0.00 Strike: $32.99 $0.00
Disclosure

SEC source: 0001266824-13-000204 · edgardoc.xml · derivative · entry 11

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,126

Underlying: Common Stock · 6,380 shares

Expires 2017-11-11

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.

F4 · derivative.exercise_date: The option vested 25% one year from the grant date of 11/11/2010, and an additional 6.25% vested at the end of each three-month period through 11/11/2013. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 11/11/2014.

Read SEC document
November 15, 2013 Filed Nov 19, 2013 23:10 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 3,000 $0.00 Strike: $27.64 $0.00
Disclosure

SEC source: 0001266824-13-000204 · edgardoc.xml · derivative · entry 10

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,000 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
November 15, 2013 Filed Nov 19, 2013 23:10 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 2,164 $0.00 Strike: $25.79 $0.00
Disclosure

SEC source: 0001266824-13-000204 · edgardoc.xml · derivative · entry 9

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,771

Underlying: Common Stock · 2,164 shares

Expires 2018-11-10

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.

F3 · derivative.exercise_date: The option vested 25% one year from the grant date of 11/10/2011, and an additional 6.25% vested at the end of the three-month period on 11/10/2013. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 11/10/2015.

Read SEC document
November 15, 2013 Filed Nov 19, 2013 23:10 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 8,000 $0.00 Strike: $15.34 $0.00
Disclosure

SEC source: 0001266824-13-000204 · edgardoc.xml · derivative · entry 8

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,000 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
November 15, 2013 Filed Nov 19, 2013 23:10 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 33,953 $74.52 $2,530,126.63
Disclosure

SEC source: 0001266824-13-000204 · edgardoc.xml · nonDerivative · entry 6

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,772

F1 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $74.42 to a high of $74.65. 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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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.