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.
Western Digital filings document material events for an operating storage company whose common stock trades on the Nasdaq Global Select Market under WDC. Recent 8-K disclosures record quarterly operating and financial results, dividend and capital-structure matters, shareholder voting and governance items, and material agreements.
The filing record also describes security-structure changes, including the mandatory conversion of Series A Convertible Perpetual Preferred Stock into common stock, the Certificate of Elimination for that preferred series, and redemptions or discharge of senior-note obligations. These documents frame WD's public-company reporting around results, debt and equity instruments, governance, and corporate actions following the completed Flash business separation.
Western Digital insider Cynthia Lock Tregillis reported multiple sales of common stock via Form 144, totaling several transactions between 12/02/2025 and 02/24/2026. The filings list individual dispositions with share counts and gross proceeds: 2,801 shares ($449,751.53), 447 shares ($102,363.00), 6,780 shares ($1,833,922.20), 130 shares ($36,897.90), and 308 shares ($86,763.60).
Western Digital Corp’s Chief Legal Officer and Corporate Secretary, Cynthia L. Tregillis, reported several equity transactions. She sold a total of 438 shares of common stock in open-market sales on February 23–24, 2026 at prices of $281.70 and $283.83, executed under a Rule 10b5-1 trading plan adopted on May 23, 2025. Around the same time, dividend equivalent rights tied to restricted stock units were converted into small amounts of common stock, and 1,353 shares were withheld at $285.52 per share to cover tax obligations. After these transactions, she directly held 134,759 shares of Western Digital common stock.
WESTERN DIGITAL CORP Chief Executive Officer Irving Tan reported several equity-related transactions involving dividend equivalent rights and common stock. On February 21, dividend equivalent rights were exercised and converted into 21.0000 shares of common stock, with a related position of dividend equivalent rights at 995.4988 units following the transaction.
That same day, 523.0000 shares of common stock were disposed of at 285.5200 per share to cover tax obligations, leaving 622961.0000 shares of common stock directly owned. On February 20, additional dividend equivalent rights converted into 11.0000 shares of common stock, and 134.0000 shares of common stock were similarly withheld at 285.5200 per share for taxes.
Western Digital’s Chief of Global Operations, Vidyadhara K. Gubbi, reported small equity-related transactions tied to restricted stock units and dividend equivalent rights on February 20 and 21, 2026.
Dividend equivalent rights were converted into common stock on a one-for-one basis, adding a few shares to his direct holdings. On both dates, shares of common stock were also disposed of to cover tax obligations upon vesting, as allowed under Rule 16b-3(e). After these transactions, Gubbi directly owned just under 126,000 shares of Western Digital common stock.
Western Digital Chief Sales & Marketing Officer Brian Scott Davis reported small equity adjustments tied to vesting awards. On February 20–21, dividend equivalent rights converted into common stock, adding a few shares at no cost, while a total of 936 shares of common stock were withheld and disposed of at $285.52 per share to cover tax obligations under Rule 16b-3(e). These transactions reflect routine settlement of equity compensation rather than open-market trading.
Western Digital Corporation eliminated a legacy preferred stock class and fully redeemed two series of senior notes. After all outstanding shares of its Series A Convertible Perpetual Preferred Stock were mandatorily converted on February 17, 2026, the company filed a Certificate of Elimination in Delaware, returning those shares to authorized but unissued status.
The company also conditionally called, and then redeemed in full, the entire aggregate principal amount outstanding of its 2.850% Senior Notes due 2029 and 3.100% Senior Notes due 2032. Following repayment of certain other debt on February 19, 2026, liens securing these notes were automatically released, and Western Digital deposited sufficient funds with the trustee on February 23, 2026 to pay the full redemption price plus accrued interest.
Cynthia Lock Tregillis reports sales of common stock. The filing lists open-market dispositions of 130 shares on 02/23/2026 for $36,897.90, 6,780 shares on 02/06/2026 for $1,833,922.20, 447 shares on 01/21/2026 for $102,363.00, and 2,801 shares on 12/02/2025 for $449,751.53. The form also lists 308 restricted shares to be sold (issuer-directed) dated 02/21/2026.
Morgan Stanley Smith Barney LLC filed a Form 144 notice relating to proposed sales of Common restricted stock for WDC. The filing lists a proposed sale date of 02/20/2026 for restricted stock and records recent sales by Cynthia Lock Tregillis of 6,780, 447, and 2,801 shares on 02/06/2026, 01/21/2026, and 12/02/2025, with corresponding gross proceeds shown in the excerpt.
WESTERN DIGITAL CORP’s Chief Sales & Marketing Officer Brian Scott Davis reported selling 10,000 shares of common stock in a series of open-market transactions on February 17, 2026. These sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted on November 3, 2025, which allows insiders to sell shares according to a preset schedule. Following these transactions, Davis directly owned 121,792 shares of Western Digital common stock.
Western Digital Corporation has changed the rights of its security holders by converting its Series A Convertible Perpetual Preferred Stock into common stock. On February 17, 2026, the company exercised its option for a mandatory conversion under the existing Certificate of Designations.
This option became available because the company’s common stock trading price met the condition that it exceed 150% of the stated conversion price for at least 20 trading days within a 30‑day period before the conversion notice. Following this action, all issued and outstanding shares of the preferred series were converted into common shares.