Cynthia L. Tregillis serves as Executive at WESTERN DIGITAL CORP, where they oversee executive responsibilities. Since joining the company, Cynthia L. Tregillis has executed 30 insider transactions totaling $3.5M, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 24, 2026 involved selling 308 shares valued at $86.8K.
Cynthia L. Tregillis currently holds 134,759 shares of WESTERN DIGITAL CORP (WDC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Cynthia L. Tregillis has been a net seller of WDC stock. They have purchased $0 and sold $3.5M worth of shares.
Cynthia L. Tregillis's most recent insider trade was on Feb 24, 2026, when they sold 308 shares at $281.70 per share.
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| $283.83 |
| Discretionary |
| Feb 21, 2026 | WDC | $0 | Option Exercise | 9.44 | $N/A | Discretionary |
| Feb 21, 2026 | WDC | $316.6K | Payment | 1,109 | $285.52 | Discretionary |
| Feb 21, 2026 | WDC | $0 | Option Exercise | 9 | $N/A | Discretionary |
| Feb 20, 2026 | WDC | $0 | Option Exercise | 3.23 | $N/A | Discretionary |
| Feb 20, 2026 | WDC | $69.7K | Payment | 244 | $285.52 | Discretionary |
| Feb 20, 2026 | WDC | $0 | Option Exercise | 3 | $N/A | Discretionary |
| Feb 6, 2026 | WDC | $1.8M | Sale | 6,780 | $270.49 | Discretionary |
| Dec 2, 2025 | WDC | $449.8K | Sale | 2,801 | $160.57 | Discretionary |
| Nov 25, 2025 | WDC | $119.7K | Payment | 770 | $155.41 | Discretionary |
| Nov 25, 2025 | WDC | $0 | Option Exercise | 5 | $N/A | Discretionary |
| Nov 21, 2025 | WDC | $154.2K | Payment | 1,108 | $139.19 | Discretionary |
| Nov 21, 2025 | WDC | $0 | Option Exercise | 7 | $N/A | Discretionary |
| Nov 20, 2025 | WDC | $53.1K | Payment | 379 | $140.23 | Discretionary |
| Nov 20, 2025 | WDC | $0 | Option Exercise | 2 | $N/A | Discretionary |
| Oct 20, 2025 | WDC | $158.8K | Payment | 1,307 | $121.53 | Discretionary |
| Oct 20, 2025 | WDC | $0 | Option Exercise | 8 | $N/A | Discretionary |
| Aug 27, 2025 | WDC | $21.5K | Payment | 266 | $80.67 | Discretionary |
| Aug 27, 2025 | WDC | $0 | Option Exercise | 1 | $N/A | Discretionary |
| Aug 26, 2025 | WDC | $0 | Award | 16,554 | $N/A | Discretionary |
| Aug 25, 2025 | WDC | $0 | Option Exercise | 3 | $N/A | Discretionary |
| Aug 25, 2025 | WDC | $60.9K | Payment | 769 | $79.22 | Discretionary |
| Aug 22, 2025 | WDC | $1.1M | Sale | 14,067 | $74.78 | Discretionary |
| Aug 21, 2025 | WDC | $0 | Option Exercise | 18 | $N/A | Discretionary |
| Aug 21, 2025 | WDC | $330.6K | Payment | 4,428 | $74.66 | Discretionary |
| Aug 20, 2025 | WDC | $0 | Option Exercise | 10 | $N/A | Discretionary |
| Aug 20, 2025 | WDC | $194.0K | Payment | 2,565 | $75.64 | Discretionary |
| Jul 20, 2025 | WDC | $88.8K | Payment | 1,306 | $68.00 | Discretionary |
| Jul 20, 2025 | WDC | $0 | Option Exercise | 5 | $N/A | Discretionary |