Tregillis Cynthia L (CIK 2057088) reported 78 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-09-08). Recent activity: Buy WDC (7 shares), Sell WDC (700 shares), Sell WDC (432 shares), Buy WDC (7 shares), Sell WDC (771 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-08 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Buy | 7 | $0 |
| 2026-09-08 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 700 | $309,099 |
| 2026-09-08 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 432 | $194,918 |
| 2026-08-27 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Buy | 7 | $0 |
| 2026-08-27 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 771 | $347,528 |
| 2026-08-27 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Buy | 3,878 | $0 |
| 2026-08-27 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 476 | $214,571 |
| 2026-08-27 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Buy | 9 | $0 |
| 2026-08-27 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 1,631 | $764,743 |
| 2026-08-27 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 1,007 | $481,709 |
| 2026-08-24 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 235 | $112,158 |
| 2026-08-24 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 379 | $177,770 |
| 2026-08-24 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Buy | 3 | $0 |
| 2026-08-24 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Buy | 11 | $0 |
| 2026-08-24 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 1,109 | $509,519 |
| 2026-08-24 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 684 | $305,180 |
| 2026-07-21 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Buy | 13 | $0 |
| 2026-07-21 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 1,309 | $638,033 |
| 2026-07-21 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 808 | $427,941 |
| 2026-06-05 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Buy | 6 | $0 |
| 2026-06-05 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 699 | $415,283 |
| 2026-06-05 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 432 | $235,699 |
| 2026-05-27 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 308 | $150,492 |
| 2026-05-27 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Buy | 7 | $0 |
| 2026-05-27 | WESTERN DIGITAL CORP (WDC) | Chief Legal Officer & Corp Sec | Sell | 771 | $373,380 |
Source: SEC Form 4 filings · as of 2026-09-08