Western Digital (WDC) director sells 3,808 shares under 10b5-1 plan
Rhea-AI Filing Summary
Cole Martin I, a director of Western Digital, sold 3,808 shares of common stock on July 28, 2026 in 30 open-market or private transactions. The trades occurred at weighted-average prices within ranges from $423.42 to $461.89 per share under a Rule 10b5-1 trading plan adopted March 5, 2026.
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Insider Trade Summary 10b5-1
Net Seller: 3,808 shares
Net Sell
30 txns
Insider
Cole Martin I
Role
Director
Sold
3,808 shs ($1.71M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock F1, F2 | 64 | $424.045 | $27K |
| Sale | Common Stock F1, F3 | 32 | $425.31 | $14K |
| Sale | Common Stock F1, F4 | 64 | $426.4453 | $27K |
| Sale | Common Stock F1, F5 | 115 | $428.0837 | $49K |
| Sale | Common Stock F1, F6 | 93 | $429.1159 | $40K |
| Sale | Common Stock F1, F7 | 103 | $430.4469 | $44K |
| Sale | Common Stock F1, F8 | 115 | $431.407 | $50K |
| Sale | Common Stock F1, F9 | 38 | $432.2047 | $16K |
| Sale | Common Stock F1, F10 | 112 | $433.8386 | $49K |
| Sale | Common Stock F1, F11 | 64 | $434.805 | $28K |
| Sale | Common Stock F1, F12 | 32 | $435.585 | $14K |
| Sale | Common Stock F1, F13 | 154 | $436.8934 | $67K |
| Sale | Common Stock F1, F14 | 118 | $438.0839 | $52K |
| Sale | Common Stock F1, F15 | 64 | $439.38 | $28K |
| Sale | Common Stock F1, F16 | 96 | $440.9617 | $42K |
| Sale | Common Stock F1, F17 | 32 | $442.47 | $14K |
| Sale | Common Stock F1, F18 | 32 | $444.51 | $14K |
| Sale | Common Stock F1, F19 | 32 | $447.095 | $14K |
| Sale | Common Stock F1, F20 | 41 | $448.4559 | $18K |
| Sale | Common Stock F1, F21 | 39 | $449.4208 | $18K |
| Sale | Common Stock F1, F22 | 70 | $451.304 | $32K |
| Sale | Common Stock F1, F23 | 106 | $452.1232 | $48K |
| Sale | Common Stock F1, F24 | 144 | $453.2733 | $65K |
| Sale | Common Stock F1, F25 | 128 | $454.4425 | $58K |
| Sale | Common Stock F1, F26 | 304 | $455.5468 | $138K |
| Sale | Common Stock F1, F27 | 312 | $456.5162 | $142K |
| Sale | Common Stock F1, F28 | 328 | $457.4484 | $150K |
| Sale | Common Stock F1, F29 | 529 | $458.9562 | $243K |
| Sale | Common Stock F1, F30 | 248 | $459.9732 | $114K |
| Sale | Common Stock F1, F31 | 199 | $461.2349 | $92K |
Holdings After Transaction:
Common Stock — 21,625 shares (Direct)
Footnotes (31)
- 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.
- F2. 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.
- F3. 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.
- F4. 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.
- F5. 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.
- F6. 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.
- F7. 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.
- F8. 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.
- F9. 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.
- F10. 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.
- F11. 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.
- F12. 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.
- F13. 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.
- F14. 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.
- F15. 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.
- F16. 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.
- F17. 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.
- F18. 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.
- F19. 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.
- F20. 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.
- F21. 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.
- F22. 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.
- F23. 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.
- F24. 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.
- F25. 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.
- F26. 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.
- F27. 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.
- F28. 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.
- F29. 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.
- F30. 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.
- F31. 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.
Key Figures
Shares sold: 3,808 shares
Number of sale transactions: 30
Lowest trade price: $423.42 per share
+2 more
5 metrics
Shares sold
3,808 shares
Total Western Digital common shares sold by Cole Martin I on July 28, 2026
Number of sale transactions
30
Separate sale transactions in Western Digital common stock on July 28, 2026
Lowest trade price
$423.42 per share
Low end of the price range for the earliest reported sales that day
Highest trade price
$461.89 per share
High end of the price range for the latest reported sales that day
10b5-1 plan adoption date
March 5, 2026
Adoption date of the Rule 10b5-1 trading plan governing these sales
Key Terms
Rule 10b5-1 trading plan, weighted average sale price per share, open market or private transaction
3 terms
Rule 10b5-1 trading plan regulatory
"The sales reported ... were effected pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
open market or private transaction financial
"Sale in open market or private transaction"
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What insider transaction did Cole Martin I report at Western Digital (WDC)?
Cole Martin I reported selling 3,808 shares of Western Digital common stock on July 28, 2026, across 30 separate trades. The sales were made under a Rule 10b5-1 trading plan adopted on March 5, 2026, at prices between $423.42 and $461.89.
What type of transactions did Cole Martin I execute in Western Digital (WDC) stock?
All reported transactions were sales of common stock coded as open-market or private transactions. There were no option exercises, gifts, or derivative transactions; the filing shows only non-derivative common stock dispositions held directly.
How many individual trades did Western Digital (WDC) director Cole Martin I execute?
He executed 30 separate sale transactions in Western Digital common stock on July 28, 2026. Each block of shares has its own reported weighted-average sale price, with accompanying footnotes describing the specific price ranges for those executions.