Tregillis Cynthia L
Chief Legal Officer & Corp Sec
Tregillis Cynthia L has filed 17 SEC Form 4 filings (60 transaction rows) across 1 company, with disclosures dating back to 2025. 17 of those filings fall inside the rolling window. Most recent filing: Sep 9, 2026.
On the most recent filing, Tregillis Cynthia L is listed as Chief Legal Officer & Corp Sec at WESTERN DIGITAL CORP. Inside the rolling window, Tregillis Cynthia L reported no open-market purchases and 18 open-market sales totaling $7.5M in WDC. The largest disclosed transaction in the window is a sale of 9,324 WDC shares on Mar 4, 2026, worth $2.5M.
Companies traded
Other insiders at WDC
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$7.5M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| WDC | Chief Legal Officer & Corp Sec | Sale | 432 | $195K | Sep 9 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 476 | $215K | Aug 28 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 1,007 | $482K | Aug 28 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 235 | $112K | Aug 24 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 684 | $305K | Aug 24 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 808 | $428K | Jul 22 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 432 | $236K | Jun 5 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 308 | $150K | May 27 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 214 | $115K | May 27 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 106 | $49K | May 22 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 363 | $137K | Apr 22 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 9,324 | $2.5M | Mar 5 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 214 | $61K | Feb 27 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 130 | $37K | Feb 24 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 308 | $87K | Feb 24 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 6,780 | $1.8M | Feb 6 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 447 | $102K | Jan 21 | SEC ↗ | |
| WDC | Chief Legal Officer & Corp Sec | Sale | 2,801 | $450K | Dec 3 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Tregillis Cynthia L made?
Tregillis Cynthia L has filed 17 SEC Form 4 filings (60 transaction rows) across 1 company since 2025.
Which companies does Tregillis Cynthia L trade?
Tregillis Cynthia L has filed SEC Form 4 disclosures for 1 company, including WDC.
When was Tregillis Cynthia L's most recent SEC Form 4 filing?
Tregillis Cynthia L's most recent SEC Form 4 filing on Tracefour is dated Sep 9, 2026.
What is Tregillis Cynthia L's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Tregillis Cynthia L is listed as Chief Legal Officer & Corp Sec.
What is Tregillis Cynthia L's total buy and sell value in the current window?
Inside the rolling retention window, Tregillis Cynthia L bought $0 and sold $7.5M based on SEC Form 4 filings.
What was Tregillis Cynthia L's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 9,324 WDC shares on 2026-03-04, worth $2.5M, per SEC Form 4 filings.