Western Digital Corp. insider trading
In the last twelve months insiders at Western Digital Corp. filed 98 open-market sales worth $20.1 million and 0 open-market purchases, on Form 4 with the SEC. The latest: Tregillis Cynthia L, Chief Legal Officer & Corp Sec, sold 432 shares at $451.20 on 4 September 2026, filed 8 September 2026.
| Traded | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 4 September 2026 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Sale | 432 | $451.20 | $194,918 | Form 4 |
| 4 September 2026 | Gubbi Vidyadhara K | Chief of Global Operations | Sale | 1,795 | $459.87 | $825,472 | Form 4 |
| 1 September 2026 | Streeter Stephanie A | Director | Sale | 1,600 | $455.00 | $728,000 | Form 4 |
| 31 August 2026 | Streeter Stephanie A | Director | Sale | 2,000 | $447.06 | $894,120 | Form 4 |
| 31 August 2026 | Streeter Stephanie A | Director | Sale | 2,000 | $448.58 | $897,160 | Form 4 |
| 27 August 2026 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Sale | 1,007 | $478.36 | $481,709 | Form 4 |
| 26 August 2026 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Sale | 476 | $450.78 | $214,571 | Form 4 |
| 24 August 2026 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Sale | 684 | $446.17 | $305,180 | Form 4 |
| 21 August 2026 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Sale | 235 | $477.27 | $112,158 | Form 4 |
| 11 August 2026 | Tan Irving | Chief Executive Officer | Sale | 2,478 | $441.48 | $1.1 million | Form 4 |
| 11 August 2026 | Tan Irving | Chief Executive Officer | Sale | 989 | $442.22 | $437,351 | Form 4 |
| 11 August 2026 | Tan Irving | Chief Executive Officer | Sale | 1,840 | $443.35 | $815,758 | Form 4 |
| 11 August 2026 | Tan Irving | Chief Executive Officer | Sale | 1,880 | $444.67 | $835,988 | Form 4 |
| 11 August 2026 | Tan Irving | Chief Executive Officer | Sale | 4,822 | $445.45 | $2.1 million | Form 4 |
| 11 August 2026 | Tan Irving | Chief Executive Officer | Sale | 6,445 | $446.38 | $2.9 million | Form 4 |
| 11 August 2026 | Tan Irving | Chief Executive Officer | Sale | 1,546 | $447.18 | $691,345 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 160 | $462.30 | $73,968 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 32 | $465.12 | $14,884 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 64 | $424.05 | $27,139 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 32 | $425.31 | $13,610 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 64 | $426.45 | $27,292 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 115 | $428.08 | $49,230 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 93 | $429.12 | $39,908 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 103 | $430.45 | $44,336 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 115 | $431.41 | $49,612 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 38 | $432.20 | $16,424 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 112 | $433.84 | $48,590 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 64 | $434.81 | $27,828 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 32 | $435.58 | $13,939 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 154 | $436.89 | $67,282 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 118 | $438.08 | $51,694 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 64 | $439.38 | $28,120 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 96 | $440.96 | $42,332 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 32 | $442.47 | $14,159 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 32 | $444.51 | $14,224 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 32 | $447.10 | $14,307 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 41 | $448.46 | $18,387 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 39 | $449.42 | $17,527 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 70 | $451.30 | $31,591 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 106 | $452.12 | $47,925 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 144 | $453.27 | $65,271 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 128 | $454.44 | $58,169 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 304 | $455.55 | $138,486 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 312 | $456.52 | $142,433 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 328 | $457.45 | $150,043 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 529 | $458.96 | $242,788 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 248 | $459.97 | $114,073 | Form 4 |
| 28 July 2026 | Cole Martin I | Director | Sale | 199 | $461.23 | $91,786 | Form 4 |
| 21 July 2026 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Sale | 808 | $529.63 | $427,941 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 48 | $528.07 | $25,348 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 64 | $530.27 | $33,937 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 48 | $531.62 | $25,518 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 96 | $533.01 | $51,169 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 48 | $533.97 | $25,631 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 16 | $534.90 | $8,558 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 112 | $536.27 | $60,062 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 71 | $537.73 | $38,179 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 57 | $538.81 | $30,712 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 32 | $539.82 | $17,274 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 16 | $540.96 | $8,655 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 48 | $542.79 | $26,054 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 48 | $543.92 | $26,108 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 16 | $544.95 | $8,719 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 48 | $484.28 | $23,246 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 16 | $485.54 | $7,769 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 48 | $486.87 | $23,370 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 16 | $488.06 | $7,809 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 38 | $491.06 | $18,660 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 30 | $492.38 | $14,771 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 44 | $493.64 | $21,720 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 32 | $494.62 | $15,828 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 48 | $497.47 | $23,878 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 48 | $498.95 | $23,949 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 16 | $499.69 | $7,995 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 64 | $501.72 | $32,110 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 128 | $502.87 | $64,367 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 80 | $503.80 | $40,304 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 96 | $505.51 | $48,529 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 96 | $507.94 | $48,762 | Form 4 |
| 9 June 2026 | Cole Martin I | Director | Sale | 32 | $509.16 | $16,293 | Form 4 |
Open-market purchases (code P) and sales (code S) only. Option exercises, grants, tax withholding and gifts are not shown. A filing with several lines appears once per line.
Source
Form 4 filings on EDGAR for Western Digital Corp.: the company's filing index.
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