WDC Chief Legal Officer reports 27.38 dividend-equivalent rights on RSUs

WDC CLO Tregillis sells 432 shares at $451.20 under 10b5-1

Western Digital GC sold 1,483 shares under 10b5-1; received 3,878 RSUs

WDC CLO Tregillis sells 919 shares at $446-$477

Tregillis Cynthia L bought 13 shares at $0.00 on 2026-07-20; Tregillis Cynthia L sold 1,309 shares at $487.42 on 2026-07-20 (+2 more)

Tregillis Cynthia L bought 19 shares of Dividend Equivalent Rights at $N/A on 2026-06-17

Tregillis Cynthia L bought 6 shares of Common Stock at $N/A on 2026-06-03; Tregillis Cynthia L sold 699 shares of Common Stock at $594.11 on 2026-06-03; Tregillis Cynthia L sold 432 shares of Common Stock at $545.60 on 2026-06-05; Tregillis Cynthia L sold 7 shares of Dividend Equivalent Rights at $N/A on 2026-06-03

Tregillis Cynthia L sold 308 shares of Common Stock at $488.61 on 2026-05-22; Tregillis Cynthia L bought 7 shares of Common Stock at $N/A on 2026-05-25; Tregillis Cynthia L sold 771 shares of Common Stock at $484.28 on 2026-05-25; Tregillis Cynthia L sold 214 shares of Common Stock at $539.63 on 2026-05-27; Tregillis Cynthia L sold 7 shares of Dividend Equivalent Rights at $N/A on 2026-05-25

Tregillis Cynthia L bought 3 shares of Common Stock at $N/A on 2026-05-20; Tregillis Cynthia L sold 379 shares of Common Stock at $459.62 on 2026-05-20; Tregillis Cynthia L bought 10 shares of Common Stock at $N/A on 2026-05-21; Tregillis Cynthia L sold 1,108 shares of Common Stock at $486.46 on 2026-05-21; Tregillis Cynthia L sold 106 shares of Common Stock at $458.87 on 2026-05-21

Tregillis Cynthia L bought 12 shares of Common Stock at $N/A on 2026-04-20; Tregillis Cynthia L sold 1,308 shares of Common Stock at $374.11 on 2026-04-20; Tregillis Cynthia L sold 363 shares of Common Stock at $377.09 on 2026-04-21; Tregillis Cynthia L sold 12 shares of Dividend Equivalent Rights at $N/A on 2026-04-20

Tregillis Cynthia L bought 41 shares of Dividend Equivalent Rights at $N/A on 2026-03-18

Tregillis Cynthia L bought 23 shares of Common Stock at $N/A on 2026-03-03; Tregillis Cynthia L sold 2,798 shares of Common Stock at $250.61 on 2026-03-03; Tregillis Cynthia L sold 777 shares of Common Stock at $257.91 on 2026-03-04; Tregillis Cynthia L sold 8,547 shares of Common Stock at $269.22 on 2026-03-04; Tregillis Cynthia L sold 24 shares of Dividend Equivalent Rights at $N/A on 2026-03-03

Tregillis Cynthia L bought 6 shares of Common Stock at $N/A on 2026-02-25; Tregillis Cynthia L sold 770 shares of Common Stock at $290.95 on 2026-02-25; Tregillis Cynthia L sold 214 shares of Common Stock at $286.11 on 2026-02-26; Tregillis Cynthia L sold 7 shares of Dividend Equivalent Rights at $N/A on 2026-02-25

Tregillis Cynthia L bought 3 shares of Common Stock at $N/A on 2026-02-20; Tregillis Cynthia L sold 244 shares of Common Stock at $285.52 on 2026-02-20; Tregillis Cynthia L bought 9 shares of Common Stock at $N/A on 2026-02-21; Tregillis Cynthia L sold 1,109 shares of Common Stock at $285.52 on 2026-02-21; Tregillis Cynthia L sold 130 shares of Common Stock at $283.83 on 2026-02-23

Tregillis Cynthia L sold 6,780 shares of Common Stock at $270.49 on 2026-02-06

Tregillis Cynthia L bought 11 shares of Common Stock at $N/A on 2026-01-20; Tregillis Cynthia L sold 842 shares of Common Stock at $222.97 on 2026-01-20; Tregillis Cynthia L sold 447 shares of Common Stock at $229.00 on 2026-01-21; Tregillis Cynthia L sold 11 shares of Dividend Equivalent Rights at $N/A on 2026-01-20

Tregillis Cynthia L bought 82 shares of Dividend Equivalent Rights at $N/A on 2025-12-18