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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
September 17, 2026 Filed Sep 21, 2026 22:34 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 10.2654 $0.00 $0.00
Disclosure

SEC source: 0001266824-26-000208 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121.1113

Underlying: Common Stock · 10.2654 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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June 17, 2026 Filed Jun 23, 2026 01:16 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 6.1088 $0.00 $0.00
Disclosure

SEC source: 0001266824-26-000152 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110.8459

Underlying: Common Stock · 6.1088 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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March 18, 2026 Filed Mar 19, 2026 22:42 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 11.8849 $0.00 $0.00
Disclosure

SEC source: 0001266824-26-000064 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104.7371

Underlying: Common Stock · 11.8849 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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February 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 400 $268.06 $107,222.00
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 11

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 0

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 November 6, 2025.

F12 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $267.58 to a high of $268.53. 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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February 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 916 $265.92 $243,580.16
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 10

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 400

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 November 6, 2025.

F11 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $265.57 to a high of $266.27. 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 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 2,200 $264.99 $582,979.76
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 9

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 1,316

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 November 6, 2025.

F10 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $264.54 to a high of $265.51. 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.

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February 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 2,600 $264.01 $686,429.12
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 8

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 3,516

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 November 6, 2025.

F9 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $263.40 to a high of $264.38. 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 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 2,300 $262.77 $604,365.94
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 7

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 6,116

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 November 6, 2025.

F8 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $262.21 to a high of $263.14. 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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February 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 3,597 $261.71 $941,362.60
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 6

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,416

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 November 6, 2025.

F7 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $261.19 to a high of $262.18. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Read SEC document
February 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 5,987 $260.57 $1,560,036.78
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 5

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 12,013

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 November 6, 2025.

F6 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $260.15 to a high of $261.05. 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 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 4,915 $259.59 $1,275,896.15
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 4

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 18,000

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 November 6, 2025.

F5 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $259.15 to a high of $260.12. 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 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 7,000 $258.67 $1,810,703.30
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 3

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 22,915

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 November 6, 2025.

F4 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $258.14 to a high of $259.13. 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 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 4,411 $257.69 $1,136,648.98
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 29,915

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 November 6, 2025.

F3 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $257.14 to a high of $258.13. 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 05, 2026 Filed Feb 6, 2026 23:09 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 2,600 $256.63 $667,241.12
Disclosure

SEC source: 0001266824-26-000008 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 34,326

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 November 6, 2025.

F2 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $256.12 to a high of $257.09. 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
December 18, 2025 Filed Dec 22, 2025 21:51 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 20.691 $0.00 $0.00
Disclosure

SEC source: 0001266824-25-000287 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92.8522

Underlying: Common Stock · 20.691 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 20, 2025 Filed Nov 21, 2025 22:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 1,585 $0.00 $0.00
Disclosure

SEC source: 0001266824-25-000230 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,897

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 · balance_after: Includes 8,508 additional stock units acquired by the Reporting Person in connection with the Issuer's spin-off (the "Spin-Off") of a then-wholly owned subsidiary of the Issuer on February 21, 2025. Pursuant to an Employee Matters Agreement, at the effective time of the Spin-Off, each outstanding Issuer stock unit was adjusted and converted into additional stock units based on the equity conversion ratio of 1.452526 per every Issuer stock unit.

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September 18, 2025 Filed Sep 22, 2025 22:25 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 26.0182 $0.00 $0.00
Disclosure

SEC source: 0001266824-25-000203 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72.1612

Underlying: Common Stock · 26.0182 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
June 18, 2025 Filed Jun 23, 2025 22:11 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 46.143 $0.00 $0.00
Disclosure

SEC source: 0001266824-25-000121 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46.143

Underlying: Common Stock · 46.143 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
March 03, 2025 Filed Mar 5, 2025 00:34 UTC Sandisk Corp SNDK · Entity 1106 GrantCommon Stock 4,840 $0.00 $0.00
Disclosure

SEC source: 0001363249-25-000021 · primary_doc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,840

F1 · shares: 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 20, 2024 Filed Nov 22, 2024 22:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 4,542 $0.00 $0.00
Disclosure

SEC source: 0001266824-24-000119 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,804

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 · balance_after: Reflects a prior transfer by the Reporting Person of directly owned common shares to a trust for the benefit of the Reporting Person and the spouse of the Reporting Person, of which the Reporting Person and the spouse of the Reporting Person are also trustees.

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November 15, 2023 Filed Nov 16, 2023 22:02 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 6,300 $0.00 $0.00
Disclosure

SEC source: 0001266824-23-000110 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,188

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 16, 2022 Filed Nov 17, 2022 23:32 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 7,962 $0.00 $0.00
Disclosure

SEC source: 0001266824-22-000084 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,888

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 16, 2021 Filed Nov 18, 2021 01:49 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 4,958 $0.00 $0.00
Disclosure

SEC source: 0001266824-21-000075 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,926

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 18, 2020 Filed Nov 20, 2020 00:07 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 6,825 $0.00 $0.00
Disclosure

SEC source: 0001266824-20-000147 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,968

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 14, 2020 Filed Nov 17, 2020 22:27 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 110.3375 $0.00 $0.00
Disclosure

SEC source: 0001266824-20-000135 · 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 · 110.3375 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 was also paid to the holder to settle a fractional dividend equivalent.

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 was also paid to the holder to settle a fractional dividend equivalent.

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 was also paid to the holder to settle a fractional dividend equivalent.

Read SEC document
November 14, 2020 Filed Nov 17, 2020 22:27 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 110 $0.00 $0.00
Disclosure

SEC source: 0001266824-20-000135 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,143

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 was also paid to the holder to settle a fractional dividend equivalent.

Read SEC document
April 17, 2020 Filed Apr 21, 2020 22:37 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 68.5 $0.00 $0.00
Disclosure

SEC source: 0001266824-20-000068 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110.3375

Underlying: Common Stock · 68.5 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 21, 2020 Filed Jan 24, 2020 00:21 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 41.8375 $0.00 $0.00
Disclosure

SEC source: 0001266824-20-000025 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41.8375

Underlying: Common Stock · 41.8375 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, 2019 Filed Nov 15, 2019 22:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 5,756 $0.00 $0.00
Disclosure

SEC source: 0001266824-19-000211 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,033

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 08, 2019 Filed Nov 13, 2019 01:16 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 243 $52.73 $12,813.56
Disclosure

SEC source: 0001266824-19-000199 · edgardoc.xml · nonDerivative · entry 3

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,277

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 May 2, 2019.

F4 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $52.72 to a high of $53.01. 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 08, 2019 Filed Nov 13, 2019 01:16 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 2,867 $52.12 $149,420.87
Disclosure

SEC source: 0001266824-19-000199 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,520

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 May 2, 2019.

F3 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $51.61 to a high of $52.58. 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, 2019 Filed Nov 13, 2019 01:16 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 245.1804 $0.00 $0.00
Disclosure

SEC source: 0001266824-19-000199 · edgardoc.xml · derivative · entry 5

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 245.1804 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 was also paid to the holder to settle a fractional dividend equivalent.

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 was also paid to the holder to settle a fractional dividend equivalent.

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 was also paid to the holder to settle a fractional dividend equivalent.

Read SEC document
November 07, 2019 Filed Nov 13, 2019 01:16 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 245 $0.00 $0.00
Disclosure

SEC source: 0001266824-19-000199 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,387

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 was also paid to the holder to settle a fractional dividend equivalent.

Read SEC document
October 22, 2019 Filed Oct 25, 2019 00:28 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 52.3936 $0.00 $0.00
Disclosure

SEC source: 0001266824-19-000175 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 245.1804

Underlying: Common Stock · 52.3936 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, 2019 Filed Jul 17, 2019 23:49 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 55.9284 $0.00 $0.00
Disclosure

SEC source: 0001266824-19-000121 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 192.7868

Underlying: Common Stock · 55.9284 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, 2019 Filed Apr 17, 2019 23:42 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 58.3639 $0.00 $0.00
Disclosure

SEC source: 0001266824-19-000085 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136.8584

Underlying: Common Stock · 58.3639 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 14, 2019 Filed Jan 17, 2019 01:17 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 78.4945 $0.00 $0.00
Disclosure

SEC source: 0001266824-19-000029 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78.4945

Underlying: Common Stock · 78.4945 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, 2018 Filed Nov 9, 2018 00:53 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 5,975 $0.00 $0.00
Disclosure

SEC source: 0001266824-18-000234 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,142

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 05, 2018 Filed Nov 6, 2018 23:07 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 1,681 $47.68 $80,148.06
Disclosure

SEC source: 0001266824-18-000218 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,167

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 February 1, 2018.

F3 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $47.22 to a high of $48.05. 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 02, 2018 Filed Nov 6, 2018 23:07 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionDividend Equivalent Rights · Derivative 89.3698 $0.00 $0.00
Disclosure

SEC source: 0001266824-18-000218 · 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 · 89.3698 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 was also paid to the holder to settle a fractional dividend equivalent.

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 was also paid to the holder to settle a fractional dividend equivalent.

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 was also paid to the holder to settle a fractional dividend equivalent.

Read SEC document
November 02, 2018 Filed Nov 6, 2018 23:07 UTC WESTERN DIGITAL CORP WDC · Entity 1010 Exercise / conversionCommon Stock 89 $0.00 $0.00
Disclosure

SEC source: 0001266824-18-000218 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,848

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 was also paid to the holder to settle a fractional dividend equivalent.

Read SEC document
October 15, 2018 Filed Oct 17, 2018 23:18 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 30.567 $0.00 $0.00
Disclosure

SEC source: 0001266824-18-000196 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89.3698

Underlying: Common Stock · 30.567 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 16, 2018 Filed Jul 19, 2018 01:00 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 21.1061 $0.00 $0.00
Disclosure

SEC source: 0001266824-18-000118 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58.8028

Underlying: Common Stock · 21.1061 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 29, 2018 Filed May 30, 2018 16:36 UTC MICROSEMI CORP MSCC · Entity 166236 Disposition to issuerMicrosemi Common Stock 17,258 Not disclosed Not disclosed
Disclosure

SEC source: 0000310568-18-000106 · wf-form4_152771257348269.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Revocable Living Trust

Disclosed balance after: 0

F1 · price: 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").

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May 29, 2018 Filed May 30, 2018 16:36 UTC MICROSEMI CORP MSCC · Entity 166236 Disposition to issuerMicrosemi Common Stock 3,255 Not disclosed Not disclosed
Disclosure

SEC source: 0000310568-18-000106 · wf-form4_152771257348269.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · price: 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").

Read SEC document
April 16, 2018 Filed Apr 18, 2018 23:50 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 18.1867 $0.00 $0.00
Disclosure

SEC source: 0001266824-18-000086 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37.6967

Underlying: Common Stock · 18.1867 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 13, 2018 Filed Feb 15, 2018 19:13 UTC MICROSEMI CORP MSCC · Entity 166236 GrantMicrosemi Common Stock 3,255 $0.00 $0.00
Disclosure

SEC source: 0000310568-18-000040 · wf-form4_151874001672519.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,255

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

Read SEC document
January 16, 2018 Filed Jan 18, 2018 00:12 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 19.51 $0.00 $0.00
Disclosure

SEC source: 0001266824-18-000024 · edgardoc.xml · derivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19.51

Underlying: Common Stock · 19.51 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 08, 2017 Filed Nov 10, 2017 01:12 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 2,677 $86.53 $231,640.27
Disclosure

SEC source: 0001266824-17-000243 · edgardoc.xml · nonDerivative · entry 1

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,759

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 December 13, 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 $85.84 to a high of $87.25. 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 02, 2017 Filed Nov 4, 2017 01:12 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantCommon Stock 3,273 $0.00 $0.00
Disclosure

SEC source: 0001266824-17-000233 · edgardoc.xml · nonDerivative · entry 2

MASSENGILL MATTHEW E · CIK 0001232826 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,436

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

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