Cynthia L. Tregillis
Cynthia L. Tregillis: Chief Legal Officer & Corp Sec at Western Digital. What Cynthia L. Tregillis holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
Western Digital (WDC)
Cynthia L. Tregillis holds 111,030 Western Digital shares (0.03% of the company), worth about $48.8M at the last price, according to the Form 4 of Sep 4, 2026.
- Shares held: 111,030 (0.03%), $48.8M — Held in their own name.
Declarations
- Western Digital (WDC) — Form 4 of Sep 17, 2026 (Chief Legal Officer & Corp Sec) 0001266824-26-000214
- Western Digital (WDC) — Form 4 of Sep 4, 2026 (Chief Legal Officer & Corp Sec): option exercise or conversion of 7; shares withheld for tax of 700 at $441.57; 111,030 shares after 0001266824-26-000199
- Western Digital (WDC) — Form 4 of Aug 27, 2026 (Chief Legal Officer & Corp Sec): option exercise or conversion of 7; shares withheld for tax of 771 at $450.75; 112,155 shares after 0001266824-26-000188
- Western Digital (WDC) — Form 4 of Aug 24, 2026 (Chief Legal Officer & Corp Sec): option exercise or conversion of 3; shares withheld for tax of 379 at $469.05; 112,146 shares after 0001266824-26-000174
- Western Digital (WDC) — Form 4 of Jul 21, 2026 (Chief Legal Officer & Corp Sec): option exercise or conversion of 13; shares withheld for tax of 1,309 at $487.42; 114,539 shares after 0001266824-26-000160
- Western Digital (WDC) — Form 4 of Jun 17, 2026 (Chief Legal Officer & Corp Sec) 0001266824-26-000158
- Western Digital (WDC) — Form 4 of Jun 5, 2026 (Chief Legal Officer & Corp Sec): option exercise or conversion of 6; shares withheld for tax of 699 at $594.11; 116,643 shares after 0001266824-26-000121
- Western Digital (WDC) — Form 4 of May 27, 2026 (Chief Legal Officer & Corp Sec): open-market sale of 308 at $488.61; option exercise or conversion of 7; 117,157 shares after 0001266824-26-000107
- Western Digital (WDC) — Form 4 of May 21, 2026 (Chief Legal Officer & Corp Sec): option exercise or conversion of 3; shares withheld for tax of 379 at $459.62; 118,443 shares after 0001266824-26-000099
- Western Digital (WDC) — Form 4 of Apr 21, 2026 (Chief Legal Officer & Corp Sec): option exercise or conversion of 12; shares withheld for tax of 1,308 at $374.11; 120,023 shares after 0001266824-26-000079
- Western Digital (WDC) — Form 4 of Mar 18, 2026 (Chief Legal Officer & Corp Sec) 0001266824-26-000069
- Western Digital (WDC) — Form 4 of Mar 4, 2026 (Chief Legal Officer & Corp Sec): option exercise or conversion of 23; shares withheld for tax of 2,798 at $250.61; 121,682 shares after 0001266824-26-000039
- Western Digital (WDC) — Form 4 of Feb 26, 2026 (Chief Legal Officer & Corp Sec): option exercise or conversion of 6; shares withheld for tax of 770 at $290.95; 133,781 shares after 0001266824-26-000029
- Western Digital (WDC) — Form 4 of Feb 24, 2026 (Chief Legal Officer & Corp Sec): option exercise or conversion of 3; shares withheld for tax of 244 at $285.52; 134,759 shares after 0001266824-26-000021
- Western Digital (WDC) — Form 4 of Feb 6, 2026 (Chief Legal Officer & Corp Sec): open-market sale of 6,780 at $270.49; 136,538 shares after 0001266824-26-000009
Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.