Form 4 for WDC Western Digital
Accepted 2026-06-11 17:47:15 ET · period of report 2026-06-09 · accession 0001266824-26-000126 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MT | 2026-06-11 17:47 | 2026-06-09 | WDC | Cole Martin I | Dir | S - Sale | $511.16 | -3,280 | 26.2K | -11% | -$1.68M |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-06-09 | S | D | 48 | $484.28 | 29,385 | D | — | — | (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 $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. |
| 2 | Common | Common Stock | 2026-06-09 | S | D | 16 | $485.54 | 29,369 | D | — | — | (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. |
| 3 | Common | Common Stock | 2026-06-09 | S | D | 48 | $486.87 | 29,321 | D | — | — | (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. (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. |
| 4 | Common | Common Stock | 2026-06-09 | S | D | 16 | $488.06 | 29,305 | D | — | — | (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. |
| 5 | Common | Common Stock | 2026-06-09 | S | D | 38 | $491.06 | 29,267 | D | — | — | (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. (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. |
| 6 | Common | Common Stock | 2026-06-09 | S | D | 30 | $492.38 | 29,237 | D | — | — | (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. (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. |
| 7 | Common | Common Stock | 2026-06-09 | S | D | 44 | $493.64 | 29,193 | D | — | — | (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. (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. |
| 8 | Common | Common Stock | 2026-06-09 | S | D | 32 | $494.62 | 29,161 | D | — | — | (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. (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. |
| 9 | Common | Common Stock | 2026-06-09 | S | D | 48 | $497.47 | 29,113 | D | — | — | (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. (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. |
| 10 | Common | Common Stock | 2026-06-09 | S | D | 48 | $498.95 | 29,065 | D | — | — | (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. (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. |
| 11 | Common | Common Stock | 2026-06-09 | S | D | 16 | $499.69 | 29,049 | D | — | — | (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. |
| 12 | Common | Common Stock | 2026-06-09 | S | D | 64 | $501.72 | 28,985 | D | — | — | (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. |
| 13 | Common | Common Stock | 2026-06-09 | S | D | 128 | $502.87 | 28,857 | D | — | — | (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. (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. |
| 14 | Common | Common Stock | 2026-06-09 | S | D | 80 | $503.80 | 28,777 | D | — | — | (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. (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. |
| 15 | Common | Common Stock | 2026-06-09 | S | D | 96 | $505.51 | 28,681 | D | — | — | (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. (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. |
| 16 | Common | Common Stock | 2026-06-09 | S | D | 96 | $507.94 | 28,585 | D | — | — | (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. (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. |
| 17 | Common | Common Stock | 2026-06-09 | S | D | 32 | $509.16 | 28,553 | D | — | — | (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. (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. |
| 18 | Common | Common Stock | 2026-06-09 | S | D | 326 | $510.61 | 28,227 | D | — | — | (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. (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. |
| 19 | Common | Common Stock | 2026-06-09 | S | D | 310 | $511.67 | 27,917 | D | — | — | (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. (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. |
| 20 | Common | Common Stock | 2026-06-09 | S | D | 316 | $513.14 | 27,601 | D | — | — | (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. (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. |
| 21 | Common | Common Stock | 2026-06-09 | S | D | 296 | $514.09 | 27,305 | D | — | — | (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. (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. |
| 22 | Common | Common Stock | 2026-06-09 | S | D | 392 | $515.40 | 26,913 | D | — | — | (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. (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. |
| 23 | Common | Common Stock | 2026-06-09 | S | D | 112 | $516.72 | 26,801 | D | — | — | (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. (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. |
| 24 | Common | Common Stock | 2026-06-09 | S | D | 216 | $517.59 | 26,585 | D | — | — | (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. (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. |
| 25 | Common | Common Stock | 2026-06-09 | S | D | 48 | $519.25 | 26,537 | D | — | — | (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. (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. |
| 26 | Common | Common Stock | 2026-06-09 | S | D | 160 | $521.14 | 26,377 | D | — | — | (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. (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. |
| 27 | Common | Common Stock | 2026-06-09 | S | D | 32 | $523.23 | 26,345 | D | — | — | (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. (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. |
| 28 | Common | Common Stock | 2026-06-09 | S | D | 48 | $524.72 | 26,297 | D | — | — | (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. (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. |
| 29 | Common | Common Stock | 2026-06-09 | S | D | 16 | $525.56 | 26,281 | D | — | — | (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. |
| 30 | Common | Common Stock | 2026-06-09 | S | D | 128 | $527.22 | 26,153 | D | — | — | (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. (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. |