Cole Martin I 4
4 · WESTERN DIGITAL CORP · Filed Jun 11, 2026
Research Summary
AI-generated summary of this filing
Western Digital (WDC) Director Cole Martin I Sells 3,280 Shares
What Happened
Cole Martin I, a director of Western Digital Corporation (WDC), sold a total of 3,280 shares in multiple open‑market transactions on June 9, 2026. The sales were executed at prices ranging roughly from $484.00 to $527.60 per share, producing aggregate proceeds of about $1,676,598. The filings state the trades were effected pursuant to a Rule 10b5‑1 trading plan adopted March 5, 2026.
Key Details
- Transaction date: June 9, 2026 (Form 4 filed June 11, 2026 — timely within the two‑business‑day window).
- Total shares sold: 3,280 shares. Total proceeds: ≈ $1,676,598.
- Price range reported across multiple lots/footnotes: about $483.99 (low) to $527.60 (high). Several footnotes report weighted‑average prices for grouped sales and the reporting person will provide per‑price details on request.
- Sales executed under a Rule 10b5‑1 plan (footnote F1) — indicates the trades were preplanned.
- Shares owned after the transaction: not specified in the provided filing excerpt.
Context
- These were sales, not purchases; sales under 10b5‑1 plans are typically prearranged and do not necessarily signal new insider views about the company.
- For retail investors, purchases by insiders are generally more informative as potential bullish signals; routine, preplanned sales are common for liquidity or diversification reasons.
- If you need the breakdown of each lot price or the post‑transaction ownership amount, the filer has committed to provide those details to the company, shareholders, or the SEC staff upon request.
Insider Transaction Report
Form 4
Cole Martin I
Director
Transactions
- Sale
Common Stock
[F1]2026-06-09$499.69/sh−16$7,995→ 29,049 total - Sale
Common Stock
[F1][F2]2026-06-09$484.28/sh−48$23,246→ 29,385 total - Sale
Common Stock
[F1]2026-06-09$485.54/sh−16$7,769→ 29,369 total - Sale
Common Stock
[F1][F3]2026-06-09$486.87/sh−48$23,370→ 29,321 total - Sale
Common Stock
[F1]2026-06-09$488.06/sh−16$7,809→ 29,305 total - Sale
Common Stock
[F1][F4]2026-06-09$491.06/sh−38$18,660→ 29,267 total - Sale
Common Stock
[F1][F5]2026-06-09$492.38/sh−30$14,771→ 29,237 total - Sale
Common Stock
[F1][F6]2026-06-09$493.64/sh−44$21,720→ 29,193 total - Sale
Common Stock
[F1][F7]2026-06-09$494.63/sh−32$15,828→ 29,161 total - Sale
Common Stock
[F1][F8]2026-06-09$497.47/sh−48$23,878→ 29,113 total - Sale
Common Stock
[F1][F9]2026-06-09$498.95/sh−48$23,949→ 29,065 total - Sale
Common Stock
[F1][F10]2026-06-09$501.72/sh−64$32,110→ 28,985 total - Sale
Common Stock
[F1][F11]2026-06-09$502.87/sh−128$64,367→ 28,857 total - Sale
Common Stock
[F1][F12]2026-06-09$503.80/sh−80$40,304→ 28,777 total - Sale
Common Stock
[F1][F13]2026-06-09$505.51/sh−96$48,529→ 28,681 total - Sale
Common Stock
[F1][F14]2026-06-09$507.94/sh−96$48,762→ 28,585 total - Sale
Common Stock
[F1][F15]2026-06-09$509.16/sh−32$16,293→ 28,553 total - Sale
Common Stock
[F1][F16]2026-06-09$510.61/sh−326$166,459→ 28,227 total - Sale
Common Stock
[F1][F17]2026-06-09$511.67/sh−310$158,616→ 27,917 total - Sale
Common Stock
[F1][F18]2026-06-09$513.14/sh−316$162,154→ 27,601 total - Sale
Common Stock
[F1][F19]2026-06-09$514.09/sh−296$152,172→ 27,305 total - Sale
Common Stock
[F1][F20]2026-06-09$515.40/sh−392$202,036→ 26,913 total - Sale
Common Stock
[F1][F21]2026-06-09$516.72/sh−112$57,872→ 26,801 total - Sale
Common Stock
[F1][F22]2026-06-09$517.59/sh−216$111,799→ 26,585 total - Sale
Common Stock
[F1][F23]2026-06-09$519.25/sh−48$24,924→ 26,537 total - Sale
Common Stock
[F1][F24]2026-06-09$521.14/sh−160$83,382→ 26,377 total - Sale
Common Stock
[F1][F25]2026-06-09$523.23/sh−32$16,743→ 26,345 total - Sale
Common Stock
[F1][F26]2026-06-09$524.72/sh−48$25,187→ 26,297 total - Sale
Common Stock
[F1]2026-06-09$525.56/sh−16$8,409→ 26,281 total - Sale
Common Stock
[F1][F27]2026-06-09$527.22/sh−128$67,485→ 26,153 total
Footnotes (27)
- [F1]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]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $501.34 to a high of $502.26. 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 $502.49 to a high of $503.39. 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.
- [F12]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $503.52 to a high of $504.05. 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.
- [F13]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.
- [F14]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.
- [F15]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.
- [F16]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.
- [F17]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.
- [F18]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.
- [F19]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.
- [F2]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $483.99 to a high of $484.57. 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.
- [F20]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.
- [F21]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.
- [F22]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.
- [F23]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.
- [F24]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.
- [F25]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.
- [F26]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.
- [F27]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.
- [F3]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $486.54 to a high of $487.31. 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 $490.99 to a high of $491.43. 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 $491.99 to a high of $492.88. 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.
- [F6]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $493.02 to a high of $493.99. 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.
- [F7]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $494.18 to a high of $495.07. 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 $497.11 to a high of $497.69. 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.
- [F9]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $498.49 to a high of $499.18. 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.
Signature
By: /s/ Sandra Garcia Attorney-in-Fact For: Martin Cole|2026-06-11