Tregillis Cynthia L insider trades
Tregillis Cynthia L has filed 33 Form 4s with the SEC that we hold, all for Western Digital Corp (WDC), as Chief Legal Officer & Corp Sec. Across all of them we count 0 purchases worth $0 and 20 sales worth $8.5M reported on Form 4. In the last 12 months: 0 purchases ($0) and 19 sales ($7.5M). The largest single trade was a sale of 8,547 shares of Western Digital Corp worth $2.3M, dated 2026-03-04. Of 5 sales filed since we began reading the 10b5-1 checkbox, 5 (100%) were marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2025-03-05 and the latest 2026-09-21.
Western Digital Corp (WDC)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2025-08-22 | S, sale reported on Form 4 | 14,067 | $1.1M | 2025-08-25 |
| 2025-12-02 | S, sale reported on Form 4 | 2,801 | $449.8K | 2025-12-03 |
| 2026-01-21 | S, sale reported on Form 4 | 447 | $102.4K | 2026-01-21 |
| 2026-02-06 | S, sale reported on Form 4 | 6,780 | $1.8M | 2026-02-06 |
| 2026-02-23 | S, sale reported on Form 4 | 130 | $36.9K | 2026-02-24 |
| 2026-02-24 | S, sale reported on Form 4 | 308 | $86.8K | 2026-02-24 |
| 2026-02-26 | S, sale reported on Form 4 | 214 | $61.2K | 2026-02-27 |
| 2026-03-04 | S, sale reported on Form 4 | 8,547 | $2.3M | 2026-03-05 |
| 2026-03-04 | S, sale reported on Form 4 | 777 | $200.4K | 2026-03-05 |
| 2026-04-21 | S, sale reported on Form 4 | 363 | $136.9K | 2026-04-22 |
| 2026-05-21 | S, sale reported on Form 4 | 106 | $48.6K | 2026-05-22 |
| 2026-05-22 | S, sale reported on Form 4 | 308 | $150.5K | 2026-05-27 |
| 2026-05-27 | S, sale reported on Form 4 | 214 | $115.5K | 2026-05-27 |
| 2026-06-05 | S, sale reported on Form 4 | 432 | $235.7K | 2026-06-05 |
| 2026-07-21 | S, sale reported on Form 4 | 808 | $427.9K | 2026-07-21 |
| 2026-08-21 | S, sale reported on Form 4 | 235 | $112.2K | 2026-08-24 |
| 2026-08-24 | S, sale reported on Form 4 | 684 | $305.2K | 2026-08-24 |
| 2026-08-26 | S, sale reported on Form 4 | 476 | $214.6K | 2026-08-27 |
| 2026-08-27 | S, sale reported on Form 4 | 1,007 | $481.7K | 2026-08-27 |
| 2026-09-04 | S, sale reported on Form 4 | 432 | $194.9K | 2026-09-08 |
Counted from the Form 4 filings this reporting owner (SEC CIK 2057088) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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