Cole Martin I 4
4 · WESTERN DIGITAL CORP · Filed Mar 3, 2026
Insider Transaction Report
Form 4
Cole Martin I
Director
Transactions
- Sale
Common Stock
[F1]2026-03-02$263.66/sh−100$26,366→ 35,333 total - Sale
Common Stock
[F1][F2]2026-03-02$265.70/sh−300$79,710→ 35,033 total - Sale
Common Stock
[F1][F3]2026-03-02$267.81/sh−300$80,342→ 34,733 total - Sale
Common Stock
[F1][F4]2026-03-02$268.84/sh−634$170,443→ 34,099 total - Sale
Common Stock
[F1][F5]2026-03-02$269.72/sh−966$260,551→ 33,133 total - Sale
Common Stock
[F1][F6]2026-03-02$271.68/sh−1,400$380,353→ 31,733 total - Sale
Common Stock
[F1][F7]2026-03-02$272.56/sh−1,100$299,814→ 30,633 total - Sale
Common Stock
[F1][F8]2026-03-02$273.56/sh−200$54,713→ 30,433 total - Sale
Common Stock
[F1][F9]2026-03-02$274.87/sh−300$82,460→ 30,133 total - Sale
Common Stock
[F1][F10]2026-03-02$276.52/sh−200$55,305→ 29,933 total - Sale
Common Stock
[F1]2026-03-02$277.16/sh−100$27,716→ 29,833 total - Sale
Common Stock
[F1][F11]2026-03-02$278.97/sh−107$29,850→ 29,726 total - Sale
Common Stock
[F1][F12]2026-03-02$280.73/sh−193$54,180→ 29,533 total - Sale
Common Stock
[F1]2026-03-02$281.99/sh−100$28,199→ 29,433 total
Footnotes (12)
- [F1]The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 1, 2025.
- [F10]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $276.06 to a high of $276.99. 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.
- [F11]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $278.73 to a high of $278.99. 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.
- [F12]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $280.44 to a high of $280.99. 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.
- [F2]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $265.50 to a high of $266.05. 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.
- [F3]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $267.34 to a high of $268.31. 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.
- [F4]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $268.36 to a high of $269.35. 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.
- [F5]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $269.36 to a high of $270.14. 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.
- [F6]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $271.19 to a high of $272.09. 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.
- [F7]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $272.20 to a high of $273.14. 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.
- [F8]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $273.28 to a high of $273.85. 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.
- [F9]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $274.47 to a high of $275.10. 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.
Signature
By: /s/ Sandra Garcia Attorney-in-Fact For: Martin I. Cole|2026-03-03