Welcome to our dedicated page for WESTERN DIGITAL SEC filings (Ticker: WDC), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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Cynthia L. Tregillis, Chief Legal Officer & Corporate Secretary of Western Digital, reported several equity transactions. On July 20, dividend equivalent rights tied to restricted stock units converted into 13 common shares, with 1,309 shares withheld to cover taxes. On July 21, she sold 808 common shares at $529.63 per share under a Rule 10b5-1 trading plan adopted on March 6, 2026.
Western Digital insider Cynthia Lock Tregillis filed a notice of intent to sell 808 shares of common stock through Morgan Stanley Smith Barney LLC’s Executive Financial Services, with a proposed sale date of July 21, 2026 on NASDAQ. The shares are reported as Restricted Stock issued by the company. The filing also lists prior sales of Western Digital common stock over the past three months, including transactions on May 21, May 22, May 27, and June 5, 2026, each with specified share counts and dollar values.
Tregillis Cynthia L reported acquisition or exercise transactions in this Form 4 filing.
Western Digital Corp Chief Legal Officer and Corporate Secretary Cynthia L. Tregillis reported a routine compensation-related transaction. She received 18.6375 Dividend Equivalent Rights tied to previously awarded restricted stock units. Each right represents a contingent right to receive one share of common stock or its cash value as the related RSUs vest.
Following this grant, Tregillis holds a total of 323.0011 Dividend Equivalent Rights, all reported as directly owned. These awards do not reflect an open-market purchase or sale, but rather standard equity compensation that vests proportionately with the underlying RSUs.
Western Digital Corp Chief Executive Officer Irving Tan reported routine equity compensation activity rather than open-market trading. On June 20, 2026, 1,090 shares of common stock were withheld to cover tax obligations tied to vesting awards, leaving him with 595,966 directly held shares. The filing also shows dividend equivalent rights converting into 52.1114 shares of common stock and a separate grant of 56.5009 new dividend equivalent rights, which track previously awarded restricted stock units and pay out one share of common stock, or its cash value, per right as those units vest.
Western Digital Corp director Stephanie A. Streeter received a small grant of dividend equivalent rights tied to existing restricted stock units. On June 17, 2026, she acquired 0.3342 dividend equivalent rights, bringing her total derivative holdings of this award type to 2.1166 rights.
Western Digital Corp Chief Product Officer Ahmed Mohammed reported routine equity compensation transactions. On June 17, 2026, 5,149 shares of common stock were disposed of to cover tax obligations related to vesting, a non-market, tax-withholding event. The same day, he acquired 51 shares of common stock through an exercise of derivative awards and received 27.9177 dividend equivalent rights that convert one-for-one into common shares. Following these transactions, he directly holds 159,706 shares of common stock, plus ongoing dividend equivalent rights linked to previously granted restricted stock units.
Sennesael Kris reported acquisition or exercise transactions in this Form 4 filing.
Western Digital Corp Chief Financial Officer Kris Sennesael received a grant of 27.7681 Dividend Equivalent Rights tied to existing restricted stock units. Following this compensation-related award, he holds 464.2043 Dividend Equivalent Rights, each representing a contingent right to receive one share of common stock or its cash value upon vesting.
Western Digital Corp director Roxanne Oulman reported a small compensation-related award. She acquired 0.3342 dividend equivalent rights tied to previously granted restricted stock units. These rights vest in step with the underlying RSUs and each represents a contingent right to receive one share of common stock or its cash value. Following this award, she holds a total of 2.1166 dividend equivalent rights.
MASSENGILL MATTHEW E reported acquisition or exercise transactions in this Form 4 filing.
Western Digital director Matthew E. Massengill received a grant of 6.1088 Dividend Equivalent Rights tied to previously awarded restricted stock units. Each right represents a contingent right to receive one share of Western Digital common stock or the cash value of a share. Following this grant, Massengill holds 110.8459 Dividend Equivalent Rights in total, reflecting routine equity-based compensation rather than an open-market stock purchase or sale.
Western Digital director Bruce E. Kiddoo reported a routine compensation-related award of dividend equivalent rights linked to existing restricted stock units. On June 17, 2026, he acquired 0.3342 dividend equivalent rights, each tied to one share of common stock or its cash value, bringing his total dividend equivalent rights to 2.1166.