Cynthia L Tregillis sold $417k of WDC
Chief Legal Officer & Corp Sec at WESTERN DIGITAL CORP. 919 shares at an average of $454.12, traded Aug 21, 2026, filed Aug 24, 2026.
Score components
- +15RoleOfficer
- +16Trade size$417k at market
- 0Share of holdings soldSold 0.8% of holdings
- +15Cluster4 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001266824-26-000174, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Aug 20, 2026 | MOption exercise Common Stock10b5-1 | +3 | $0.00 | $0 | 114,542 | Aug 24, 2026 |
| Aug 20, 2026 | FTax withholding Common Stock10b5-1 | -379 | $469.05 | $178k | 114,163 | Aug 24, 2026 |
| Aug 21, 2026 | SOpen-market sale Common Stock10b5-1 | -235 | $477.27 | $112k | 113,928 | Aug 24, 2026 |
| Aug 21, 2026 | MOption exercise Common Stock10b5-1 | +11 | $0.00 | $0 | 113,939 | Aug 24, 2026 |
| Aug 21, 2026 | FTax withholding Common Stock10b5-1 | -1,109 | $459.44 | $510k | 112,830 | Aug 24, 2026 |
| Aug 24, 2026 | SOpen-market sale Common Stock10b5-1 | -684 | $446.17 | $305k | 112,146 | Aug 24, 2026 |
| Aug 20, 2026 | MOption exercise Dividend Equivalent Rightsderivative10b5-1 | -4 | $0.00 | $0 | 306 | Aug 24, 2026 |
| Aug 21, 2026 | MOption exercise Dividend Equivalent Rightsderivative10b5-1 | -11 | $0.00 | $0 | 295 | Aug 24, 2026 |
Related signals
Other insiders at WESTERN DIGITAL CORP and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 38Weak | WESTERN DIGITAL CORP | Vidyadhara K Gubbi Chief of Global Operations | $825k 1,795 shares | -2% | |
| 7Weak | WESTERN DIGITAL CORP | Cynthia L Tregillis Chief Legal Officer & Corp Sec | $195k 432 shares | -0% | |
| 60Notable | WESTERN DIGITAL CORP | Stephanie A Streeter director | $2.5M 5,600 shares | -14% | |
| 16Weak | WESTERN DIGITAL CORP | Cynthia L Tregillis Chief Legal Officer & Corp Sec | $696k 1,483 shares | -1% | |
| 45Moderate | WESTERN DIGITAL CORP | Irving Tan Chief Executive Officer | $8.9M 20,000 shares | -3% | |
| 40Moderate | WESTERN DIGITAL CORP | Martin I Cole director | $1.7M 3,808 shares | -15% | |
| 19Weak | WESTERN DIGITAL CORP | Martin I Cole director | $89k 192 shares | -1% | |
| 5Weak | WESTERN DIGITAL CORP | Cynthia L Tregillis Chief Legal Officer & Corp Sec | $428k 808 shares | -1% | |
| 40Moderate | WESTERN DIGITAL CORP | Martin I Cole director | $1.7M 3,280 shares | -11% | |
| 26Weak | WESTERN DIGITAL CORP | Martin I Cole director | $386k 720 shares | -3% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.