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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 06, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,400 $28.11 $39,354.00
Disclosure

SEC source: 0001266824-07-000038 · edgardoc.xml · nonDerivative · entry 8

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 167,275

Read SEC document
November 06, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 4,055 $28.10 $113,945.50
Disclosure

SEC source: 0001266824-07-000038 · edgardoc.xml · nonDerivative · entry 7

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 168,675

Read SEC document
November 06, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,700 $28.08 $47,736.00
Disclosure

SEC source: 0001266824-07-000038 · edgardoc.xml · nonDerivative · entry 6

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 172,730

Read SEC document
November 06, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 100 $28.08 $2,807.50
Disclosure

SEC source: 0001266824-07-000038 · edgardoc.xml · nonDerivative · entry 5

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 174,430

Read SEC document
November 06, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 6,900 $28.07 $193,683.00
Disclosure

SEC source: 0001266824-07-000038 · edgardoc.xml · nonDerivative · entry 4

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 174,530

Read SEC document
November 06, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 100 $28.07 $2,806.50
Disclosure

SEC source: 0001266824-07-000038 · edgardoc.xml · nonDerivative · entry 3

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,430

Read SEC document
November 06, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 2,600 $28.06 $72,956.00
Disclosure

SEC source: 0001266824-07-000038 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,530

Read SEC document
November 06, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 100 $28.06 $2,805.50
Disclosure

SEC source: 0001266824-07-000038 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,130

Read SEC document
November 06, 2007 Filed Nov 8, 2007 00:18 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantNon-Qualified Stock Option (right to buy) · Derivative 7,364 $0.00 Strike: $27.64 $0.00
Disclosure

SEC source: 0001266824-07-000039 · edgardoc.xml · derivative · entry 16

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,364

Underlying: Common Stock · 7,364 shares

Expires 2014-11-06

F5 · 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, 2007 Filed Nov 8, 2007 00:18 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 164,100 $0.00 Strike: $13.07 $0.00
Disclosure

SEC source: 0001266824-07-000039 · edgardoc.xml · derivative · entry 13

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,650

Underlying: Common Stock · 164,100 shares

Expires 2013-09-24

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 was scheduled to vest 25% on the first anniversary of the grant date and an additional 6.25% at the end of each three-month period thereafter. By agreement between WDC and the reporting person, each installment of the option scheduled to vest after July 31, 2007 has been cancelled.

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,242 $28.53 $35,434.26
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 23

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,530

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 12,358 $28.52 $352,450.16
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 22

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 151,772

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 200 $28.51 $5,702.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 21

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 164,130

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 5,300 $28.50 $151,050.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 20

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 164,330

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 2,100 $28.45 $59,745.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 19

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 169,630

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,200 $28.42 $34,104.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 18

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 171,730

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,000 $28.42 $28,415.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 17

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 172,930

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,200 $28.41 $34,092.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 16

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 173,930

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 6,000 $28.40 $170,400.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 15

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 175,130

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 6,320 $28.08 $177,465.60
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 14

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,130

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 4,300 $28.07 $120,701.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 13

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 187,450

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 3,300 $28.06 $92,598.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 12

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 191,750

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 34,000 $28.05 $953,700.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 11

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 195,050

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 18,100 $28.04 $507,524.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 10

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 229,050

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 23,000 $28.03 $644,690.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 9

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 247,150

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 300 $28.03 $8,407.50
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 8

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 270,150

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 19,100 $28.02 $535,182.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 7

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 270,450

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 9,300 $28.01 $260,493.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 6

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 289,550

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 113,400 $28.00 $3,175,200.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 5

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 298,850

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 800 $27.91 $22,328.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 4

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 412,250

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 22,480 $27.90 $627,192.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 3

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 413,050

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 103,500 $13.07 $1,352,745.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 435,530

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 05, 2007 Filed Nov 8, 2007 00:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 181,500 $10.21 $1,853,115.00
Disclosure

SEC source: 0001266824-07-000037 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,030

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 05, 2007 Filed Nov 8, 2007 00:18 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 103,500 $0.00 Strike: $13.07 $0.00
Disclosure

SEC source: 0001266824-07-000039 · edgardoc.xml · derivative · entry 12

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 177,750

Underlying: Common Stock · 103,500 shares

Expires 2013-09-24

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 was scheduled to vest 25% on the first anniversary of the grant date and an additional 6.25% at the end of each three-month period thereafter. By agreement between WDC and the reporting person, each installment of the option scheduled to vest after July 31, 2007 has been cancelled.

Read SEC document
November 05, 2007 Filed Nov 8, 2007 00:18 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 181,500 $0.00 Strike: $10.21 $0.00
Disclosure

SEC source: 0001266824-07-000039 · edgardoc.xml · derivative · entry 9

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 181,500 shares

Expires 2015-01-20

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.

F1 · derivative.exercise_date: The option was scheduled to vest 25% on the first anniversary of the grant date and an additional 6.25% at the end of each three-month period thereafter. By agreement between WDC and the reporting person, each installment of the option scheduled to vest after July 31, 2007 has been cancelled.

Read SEC document
February 06, 2007 Filed Feb 9, 2007 00:01 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantNon-Qualified Stock Option (right to buy) · Derivative 9,185 $0.00 Strike: $19.09 $0.00
Disclosure

SEC source: 0001363249-07-000016 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,185

Underlying: Common Stock · 9,185 shares

Expires 2017-02-06

F1 · 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
January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 4,000 $19.45 $77,800.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 17

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,530

Read SEC document
January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 28,200 $19.44 $548,208.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 16

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 154,530

Read SEC document
January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 23,700 $19.44 $460,609.50
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 15

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 182,730

Read SEC document
January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 3,000 $19.43 $58,290.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 14

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 206,430

Read SEC document
January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 4,100 $19.42 $79,622.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 13

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 209,430

Read SEC document
January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 11,300 $19.41 $219,333.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 12

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 213,530

Read SEC document
January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 10,500 $19.40 $203,700.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 11

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 224,830

Read SEC document
January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 6,500 $19.39 $126,035.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 10

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 235,330

Read SEC document
January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 12,200 $19.38 $236,436.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 9

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 241,830

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January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 35,500 $19.37 $687,635.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 8

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 254,030

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January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,300 $19.37 $25,174.50
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 7

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 289,530

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January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 23,800 $19.36 $460,768.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 6

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 290,830

Read SEC document
January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 25,000 $19.36 $483,875.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 5

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 314,630

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January 30, 2007 Filed Feb 1, 2007 00:05 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 10,900 $19.35 $210,915.00
Disclosure

SEC source: 0001266824-07-000023 · edgardoc.xml · nonDerivative · entry 4

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 339,630

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.