Cynthia L Tregillis insider trades: Western Digital (WDC) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Cynthia reports to the SEC
Open-market buys and sales
13 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Oct 21, 2026 | WDC | ↓ Sell | 807 | $380.00 | $307K | Direct | Oct 22, 2026 (1d) |
| Sep 4, 2026 | WDC | ↓ Sell | 432 | $451.20 | $195K | Direct | Sep 8, 2026 (4d) |
| Aug 27, 2026 | WDC | ↓ Sell | 1,483 | $469.51 | $696K | Direct | Aug 27, 2026 (0d) |
| Aug 24, 2026 | WDC | ↓ Sell | 919 | $454.12 | $417K | Direct | Aug 24, 2026 (0d) |
| Jul 21, 2026 | WDC | ↓ Sell | 808 | $529.63 | $428K | Direct | Jul 21, 2026 (0d) |
| May 27, 2026 | WDC | ↓ Sell | 522 | $509.53 | $266K | Direct | May 27, 2026 (0d) |
| Apr 21, 2026 | WDC | ↓ Sell | 363 | $377.09 | $137K | Direct | Apr 22, 2026 (1d) |
| Mar 4, 2026 | WDC | ↓ Sell | 9,324 | $268.27 | $2.5M | Direct | Mar 5, 2026 (1d) |
| Feb 24, 2026 | WDC | ↓ Sell | 438 | $282.33 | $124K | Direct | Feb 24, 2026 (0d) |
| Feb 6, 2026 | WDC | ↓ Sell | 6,780 | $270.49 | $1.8M | Direct | Feb 6, 2026 (0d) |
| Jan 21, 2026 | WDC | ↓ Sell | 447 | $229.00 | $102K | Direct | Jan 21, 2026 (0d) |
| Dec 2, 2025 | WDC | ↓ Sell | 2,801 | $160.57 | $450K | Direct | Dec 3, 2025 (1d) |
| Aug 22, 2025 | WDC | ↓ Sell | 14,067 | $74.78 | $1.1M | Direct | Aug 25, 2025 (3d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other WDC insiders
Open-market trades in the last 12 months
About Cynthia L Tregillis's insider trades
Cynthia L Tregillis is Chief Legal Officer & Corp Sec at Western Digital (WDC). Since Aug 22, 2025, Cynthia has reported no open-market purchases and 13 sales worth $8.5M on SEC Form 4. In the last 12 months: 12 sales ($7.5M).
Their filings also include shares withheld for taxes (23 filings), option exercises (19 filings), grants and awards (8 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every WDC insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.