Cynthia Tregillis Biography and Net Worth

Chief Legal Officer and Secretary of Western Digital


Cynthia Tregillis is the Chief Legal Officer and Secretary at Western Digital. She oversees the company's worldwide legal, risk management, compliance, and government relations functions.

In her role, Cynthia advises the company's executive leadership team and members of the company's Board of Directors. She oversees the teams responsible for supporting the company's efforts to develop, manufacture, market and sell storage products globally through the company's independent subsidiaries. She also leads teams responsible for protecting the company's significant intellectual property, strengthening and defending the company's brands worldwide, and complying with regulatory and public company obligations. Since joining Western Digital in 2012, she has held several positions, most recently serving as Senior Vice President and Deputy General Counsel.

Previously, Cynthia was an attorney Of Counsel at Orrick, Herrington & Sutcliffe LLP and a Partner at McDermott Will & Emery LLP and Oppenheimer, Wolff & Donnelly LLP, where her practice focused on intellectual property and civil litigation. She was also a judicial clerk at the Superior Court of the District of Columbia.

Cynthia sits on the Boards of the Silicon Valley Leadership Group, U.S.-India Business Council, and International AntiCounterfeiting Coalition. She is the past chair of the University of Southern California Intellectual Property Institute and a member of the Executive and Planning Committees. She is also a founding leader of the Los Angeles chapter of ChIPs, an organization focused on connecting and advancing women in technology, policy, and the law. The World Trademark Review has identified her on its WTR 300 and Global Leaders lists.

Cynthia graduated from the University of California, San Diego (Revelle College) and the University of San Francisco School of Law.

What is Cynthia L. Tregillis' net worth?

The estimated net worth of Cynthia L. Tregillis is at least $23.28 million as of December 2nd, 2025. Ms. Tregillis owns 144,596 shares of Western Digital stock worth more than $23,279,956 as of December 4th. This net worth estimate does not reflect any other investments that Ms. Tregillis may own. Learn More about Cynthia L. Tregillis' net worth.

How do I contact Cynthia L. Tregillis?

The corporate mailing address for Ms. Tregillis and other Western Digital executives is 5601 GREAT OAKS PARKWAY, SAN JOSE CA, 95119. Western Digital can also be reached via phone at (408) 717-6000 and via email at [email protected]. Learn More on Cynthia L. Tregillis' contact information.

Has Cynthia L. Tregillis been buying or selling shares of Western Digital?

Over the course of the past ninety days, Cynthia L. Tregillis has sold $449,756.57 in shares of Western Digital stock. Most recently, Cynthia L. Tregillis sold 2,801 shares of the business's stock in a transaction on Tuesday, December 2nd. The shares were sold at an average price of $160.57, for a transaction totalling $449,756.57. Following the completion of the sale, the insider now directly owns 144,596 shares of the company's stock, valued at $23,217,779.72. Learn More on Cynthia L. Tregillis' trading history.

Who are Western Digital's active insiders?

Western Digital's insider roster includes Kimberly Alexy (Director), Michael Cordano (COO), David Goeckeler (CEO), Vidyadhara Gubbi (Chief of Global Operations), Roxanne Oulman (Director), Paula Price (Director), Michael Ray (EVP), Srinivasan Sivaram (Insider), Robert Soderbery (EVP), Lori Sundberg (EVP), Irving Tan (CEO), Cynthia Tregillis (Chief Legal Officer and Secretary), and Gene Zamiska (SVP). Learn More on Western Digital's active insiders.

Are insiders buying or selling shares of Western Digital?

During the last year, insiders at the data storage provider sold shares 18 times. They sold a total of 91,567 shares worth more than $8,681,225.46. The most recent insider tranaction occured on December, 2nd when insider Cynthia L Tregillis sold 2,801 shares worth more than $449,756.57. Insiders at Western Digital own 0.2% of the company. Learn More about insider trades at Western Digital.

Information on this page was last updated on 12/2/2025.

Cynthia L. Tregillis Insider Trading History at Western Digital

Transaction DateBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
12/2/2025Sell2,801$160.57$449,756.57144,596View SEC Filing Icon  
8/22/2025Sell14,067$74.78$1,051,930.26135,351View SEC Filing Icon  
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Cynthia L. Tregillis Buying and Selling Activity at Western Digital

This chart shows Cynthia L Tregillis's buying and selling at Western Digital by year and by quarter.

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Western Digital Company Overview

Western Digital logo
Western Digital Corporation develops, manufactures, and sells data storage devices and solutions in the United States, China, Hong Kong, Europe, the Middle East, Africa, rest of Asia, and internationally. It offers client devices, including hard disk drives (HDDs) and solid state drives (SSDs) for desktop and notebook personal computers (PCs), gaming consoles, and set top boxes; and flash-based embedded storage products for mobile phones, tablets, notebook PCs, and other portable and wearable devices, as well as automotive, Internet of Things, industrial, and connected home applications. The company also provides enterprise HDDs; enterprise SSDs consisting of flash-based SSDs and software solutions for use in enterprise servers, online transactions, data analysis, and other enterprise applications; and data storage platforms. In addition, it offers external HDD storage products in mobile and desktop form; client portable SSDs; removable cards that are used in consumer devices comprising mobile phones, tablets, imaging systems, and cameras and smart video systems; universal serial bus flash drives for use in the computing and consumer markets; and wireless drive products used in-field backup of created content, as well as wireless streaming of high-definition movies, photos, music, and documents to tablets, smartphones, and PCs. The company sells its products under the Western Digital, SanDisk, and WD brands to original equipment manufacturers, distributors, dealers, resellers, and retailers. Western Digital Corporation was founded in 1970 and is headquartered in San Jose, California.
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Today's Range

Now: $161.00
Low: $153.01
High: $161.53

50 Day Range

MA: $140.78
Low: $106.88
High: $174.22

2 Week Range

Now: $161.00
Low: $28.83
High: $178.45

Volume

6,299,421 shs

Average Volume

8,107,944 shs

Market Capitalization

$55.05 billion

P/E Ratio

23.44

Dividend Yield

0.26%

Beta

1.82