Tregillis Cynthia L Insider Trading Activity
Tregillis Cynthia L has been net-selling over the last 12 months with 0 purchases and 11 sales across 1 company.
WDC is the most-traded position with 11 trades. The largest single transaction was a sale of WDC for $2.3M on Mar 4, 2026.
Performance Scorecard
Forward stock performance after each transaction by Tregillis Cynthia L. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -13.8% | 30% | 10 |
| 90 days | — | -86.5% | 0% | 9 |
| 120 days | — | -107.3% | 0% | 4 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersWDC · WESTERN DIGITAL CORP
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| May 21, 2026 | WDC | Sell | 106 | $458.87 | $49K | Chief Legal Officer & Corp Sec |
| Apr 21, 2026 | WDC | Sell | 363 | $377.09 | $137K | Chief Legal Officer & Corp Sec |
| Mar 4, 2026 | WDC | Sell | 777 | $257.91 | $200K | Chief Legal Officer & Corp Sec |
| Mar 4, 2026 | WDC | Sell | 8,547 | $269.22 | $2.3M | Chief Legal Officer & Corp Sec |
| Feb 26, 2026 | WDC | Sell | 214 | $286.11 | $61K | Chief Legal Officer & Corp Sec |
| Feb 24, 2026 | WDC | Sell | 308 | $281.70 | $87K | Chief Legal Officer & Corp Sec |
| Feb 23, 2026 | WDC | Sell | 130 | $283.83 | $37K | Chief Legal Officer & Corp Sec |
| Feb 6, 2026 | WDC | Sell | 6,780 | $270.49 | $1.8M | Chief Legal Officer & Corp Sec |
| Jan 21, 2026 | WDC | Sell | 447 | $229.00 | $102K | Chief Legal Officer & Corp Sec |
| Dec 2, 2025 | WDC | Sell | 2,801 | $160.57 | $450K | Chief Legal Officer & Corp Sec |
| Aug 22, 2025 | WDC | Sell | 14,067 | $74.78 | $1.1M | Chief Legal Officer & Corp Sec |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| WDC | WESTERN DIGITAL CORP | 11 | $6.3M |
Other insiders at WESTERN DIGITAL CORP
6 other tracked filers at WDC.