TapewireFind a company

person · Reporting owner

Cole Martin I

Disclosed activity across 3 companies

Tapewire entity
14379
SEC CIK
0001302874

Export transaction history ↓

Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Cloudera, Inc.CLDR · Entity 11702Director · Interim CEODecember 31, 2019January 04, 2020
WESTERN DIGITAL CORPWDC · Entity 1010DirectorSeptember 17, 2026September 21, 2026
Western Union COWU · Entity 4445DirectorMarch 02, 2026March 05, 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.

Cloudera, Inc.

Report date December 31, 2019 · Filed January 04, 2020

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect298,626 Ending reported balance After 2019-12-31 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2019-12-31 · Exercise / conversion · Acquired 181,766 · Balance 381,308

F1: Vesting and release of RSUs granted to the reporting person on July 31, 2019.

Row 2 · 2019-12-31 · Tax withholding · Disposed 82,682 · Balance 298,626

F2: Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of on this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the settlement of vested RSUs. The Reporting Person did not sell or otherwise dispose of any of the shares reported on this Form 4 for any reason other than to cover required taxes.

Restricted Stock Units (RSU)SEC Table II · derivative / convertible securityDirect178,880 Reported balance After 2019-12-31 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2019-12-31 · Exercise / conversion · Disposed 181,766 · Balance 178,880

F4: Each RSU represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

F1: Vesting and release of RSUs granted to the reporting person on July 31, 2019.

F5: The RSUs vest quarterly on the last day of each of the full three (3) month periods following July 31, 2019 at the rate of 37.50% for the first quarter, 31.50% for the second quarter, and 15.50% for each of the third and fourth quarters, subject to reporting person's continued service.

Common StockSEC Table I · non-derivativeIndirectBy Cole Family Holdings, LLLP50,000 Reported balance Holding disclosure · report date 2019-12-31 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 50,000

F3: Shares directly held by the Cole Family Holdings, LLLP, of which the Reporting Person is a trustee and may be deemed to share voting and dispositive power over these shares.

Filing footnotes · ownership attribution and instrument terms

F1: Vesting and release of RSUs granted to the reporting person on July 31, 2019.

F2: Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of on this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the settlement of vested RSUs. The Reporting Person did not sell or otherwise dispose of any of the shares reported on this Form 4 for any reason other than to cover required taxes.

F3: Shares directly held by the Cole Family Holdings, LLLP, of which the Reporting Person is a trustee and may be deemed to share voting and dispositive power over these shares.

F4: Each RSU represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

F5: The RSUs vest quarterly on the last day of each of the full three (3) month periods following July 31, 2019 at the rate of 37.50% for the first quarter, 31.50% for the second quarter, and 15.50% for each of the third and fourth quarters, subject to reporting person's continued service.

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 securityDirect3.2359 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 0.6786 · Balance 3.2359

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.

Western Union CO

Report date March 02, 2026 · Filed March 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect120,018 Reported balance After 2026-03-02 transaction · row 1
1 source row

Row 1 · 2026-03-02 · Grant · Acquired 20,921 · Balance 120,018

F1: Represents a restricted stock unit award which vests in full on March 2, 2027, subject to the reporting person's continued service on the Company's board and any applicable termination provisions contained in the award agreement.

Filing footnotes · ownership attribution and instrument terms

F1: Represents a restricted stock unit award which vests in full on March 2, 2027, subject to the reporting person's continued service on the Company's board and any applicable termination provisions contained in the award agreement.

Transaction history

JSON API
Reset

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 22:32 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 0.6786 $0.00 $0.00
Disclosure

SEC source: 0001266824-26-000201 · edgardoc.xml · derivative · entry 1

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3.2359

Underlying: Common Stock · 0.6786 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 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 199 $461.23 $91,785.75
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 30

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,625

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 5, 2026.

F31 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $460.94 to a high of $461.89. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 248 $459.97 $114,073.35
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 29

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,824

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 5, 2026.

F30 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $459.74 to a high of $460.53. 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.

Read SEC document
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 529 $458.96 $242,787.83
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 28

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,072

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 5, 2026.

F29 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $458.37 to a high of $459.33. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 328 $457.45 $150,043.08
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 27

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,601

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 5, 2026.

F28 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $457.23 to a high of $457.87. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 312 $456.52 $142,433.05
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 26

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,929

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 5, 2026.

F27 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $456.05 to a high of $457.00. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 304 $455.55 $138,486.23
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 25

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,241

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 5, 2026.

F26 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $455.03 to a high of $456.02. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 128 $454.44 $58,168.64
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 24

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,545

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 5, 2026.

F25 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $453.92 to a high of $454.91. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 144 $453.27 $65,271.36
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 23

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,673

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 5, 2026.

F24 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $452.75 to a high of $453.69. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 106 $452.12 $47,925.06
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 22

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,817

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 5, 2026.

F23 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $451.61 to a high of $452.47. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 70 $451.30 $31,591.28
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 21

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,923

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 5, 2026.

F22 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $450.60 to a high of $451.56. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 39 $449.42 $17,527.41
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 20

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,993

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 5, 2026.

F21 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $448.99 to a high of $449.95. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 41 $448.46 $18,386.69
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 19

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,032

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 5, 2026.

F20 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $447.99 to a high of $448.97. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 32 $447.10 $14,307.04
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 18

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,073

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 5, 2026.

F19 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $446.73 to a high of $447.46. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 32 $444.51 $14,224.32
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 17

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,105

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 5, 2026.

F18 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $444.09 to a high of $444.93. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 32 $442.47 $14,159.04
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 16

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,137

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 5, 2026.

F17 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $442.06 to a high of $442.88. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 96 $440.96 $42,332.32
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 15

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,169

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 5, 2026.

F16 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $440.67 to a high of $441.46. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 64 $439.38 $28,120.32
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 14

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,265

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 5, 2026.

F15 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $439.12 to a high of $439.99. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 118 $438.08 $51,693.90
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 13

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,329

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 5, 2026.

F14 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $437.71 to a high of $438.68. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 154 $436.89 $67,281.58
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 12

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,447

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 5, 2026.

F13 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $436.54 to a high of $437.49. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 32 $435.59 $13,938.72
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 11

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,601

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 5, 2026.

F12 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $435.51 to a high of $435.66. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 64 $434.81 $27,827.52
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 10

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,633

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 5, 2026.

F11 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $434.41 to a high of $435.36. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 112 $433.84 $48,589.92
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 9

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,697

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 5, 2026.

F10 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $433.24 to a high of $434.16. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 38 $432.20 $16,423.78
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 8

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,809

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 5, 2026.

F9 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $432.06 to a high of $432.34. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 115 $431.41 $49,611.81
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 7

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,847

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 5, 2026.

F8 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $430.84 to a high of $431.80. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 103 $430.45 $44,336.03
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 6

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,962

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 5, 2026.

F7 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $429.79 to a high of $430.74. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 93 $429.12 $39,907.78
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 5

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,065

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 5, 2026.

F6 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $428.66 to a high of $429.49. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 115 $428.08 $49,229.63
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 4

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,158

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 5, 2026.

F5 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $427.48 to a high of $428.41. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 64 $426.45 $27,292.50
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 3

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,273

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 5, 2026.

F4 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $426.24 to a high of $426.98. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 32 $425.31 $13,609.92
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 2

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,337

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 5, 2026.

F3 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $425.15 to a high of $425.47. 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
July 28, 2026 Filed Jul 29, 2026 23:31 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 64 $424.05 $27,138.88
Disclosure

SEC source: 0001266824-26-000163 · edgardoc.xml · nonDerivative · entry 1

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,369

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 5, 2026.

F2 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $423.42 to a high of $424.39. 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
July 28, 2026 Filed Jul 29, 2026 23:32 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 32 $465.12 $14,883.94
Disclosure

SEC source: 0001266824-26-000164 · edgardoc.xml · nonDerivative · entry 2

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,433

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 March 5, 2026.

F4 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $465.04 to a high of $465.21. 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
July 28, 2026 Filed Jul 29, 2026 23:32 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 160 $462.30 $73,968.21
Disclosure

SEC source: 0001266824-26-000164 · edgardoc.xml · nonDerivative · entry 1

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,465

F1 · security: Due to SEC rules limiting the number of transactions that can be reported on a single Form 4, this Form 4 is a continuation of the Form 4 filed for the same date listed above.

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 March 5, 2026.

F3 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $462.03 to a high of $462.50. 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
June 17, 2026 Filed Jun 23, 2026 01:15 UTC WESTERN DIGITAL CORP WDC · Entity 1010 GrantDividend Equivalent Rights · Derivative 0.4038 $0.00 $0.00
Disclosure

SEC source: 0001266824-26-000145 · edgardoc.xml · derivative · entry 1

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2.5573

Underlying: Common Stock · 0.4038 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 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 128 $527.22 $67,484.65
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 30

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,153

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 5, 2026.

F27 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $526.82 to a high of $527.60. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 16 $525.56 $8,408.96
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 29

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,281

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 5, 2026.

Read SEC document
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 48 $524.72 $25,186.56
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 28

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,297

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 5, 2026.

F26 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $524.19 to a high of $525.01. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 32 $523.23 $16,743.36
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 27

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,345

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 5, 2026.

F25 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $522.98 to a high of $523.48. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 160 $521.14 $83,382.24
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 26

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,377

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 5, 2026.

F24 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $520.76 to a high of $521.59. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 48 $519.25 $24,924.16
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 25

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,537

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 5, 2026.

F23 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $518.90 to a high of $519.79. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 216 $517.59 $111,799.35
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 24

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,585

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 5, 2026.

F22 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $517.17 to a high of $518.16. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 112 $516.72 $57,872.32
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 23

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,801

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 5, 2026.

F21 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $515.99 to a high of $516.91. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 392 $515.40 $202,036.41
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 22

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,913

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 5, 2026.

F20 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $514.95 to a high of $515.86. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 296 $514.09 $152,171.94
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 21

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 27,305

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 5, 2026.

F19 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $513.81 to a high of $514.62. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 316 $513.14 $162,153.66
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 20

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 27,601

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 5, 2026.

F18 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $512.66 to a high of $513.65. 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.

Read SEC document
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 310 $511.67 $158,616.18
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 19

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 27,917

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 5, 2026.

F17 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $511.22 to a high of $512.18. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 326 $510.61 $166,459.06
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 18

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,227

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 5, 2026.

F16 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $510.20 to a high of $511.11. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 32 $509.16 $16,293.14
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 17

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,553

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 5, 2026.

F15 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $508.67 to a high of $509.38. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 96 $507.94 $48,762.08
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 16

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,585

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 5, 2026.

F14 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $507.51 to a high of $508.25. 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
June 09, 2026 Filed Jun 11, 2026 21:47 UTC WESTERN DIGITAL CORP WDC · Entity 1010 SaleCommon Stock 96 $505.51 $48,529.12
Disclosure

SEC source: 0001266824-26-000126 · edgardoc.xml · nonDerivative · entry 15

Cole Martin I · CIK 0001302874 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,681

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 5, 2026.

F13 · price: Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $504.99 to a high of $505.95. 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

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