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.
Insider transaction report for Western Digital Corp. (WDC). Vidyadhara K. Gubbi, listed as Chief of Global Operations and an officer, received restricted stock units that converted into common stock and recorded related dividend equivalent share payments and a tax-withholding share disposition. On 08/26/2025 the reporting person was credited with 16,554 shares from a restricted stock unit grant, raising beneficial ownership to 163,346 shares. On 08/27/2025 a separate administrative conversion (code M) added 1 share to reach 163,347 shares, and 408 shares were surrendered to satisfy tax withholding at a reported price of $80.67, reducing holdings to 162,939 shares. Dividend equivalent rights totaling 1.3904 underlying shares were converted and paid in shares, resulting in 154.9011 shares reported as derivative-related beneficial ownership. The Form 4 is signed by an attorney-in-fact on 08/28/2025.
Brian Scott Davis, Chief Sales & Marketing Officer of Western Digital Corp (WDC), reported insider transactions dated August 26-27, 2025. The filing shows a grant of 13,243 restricted stock units (RSUs) on 08/26/2025, which vest and are settled as common stock. On 08/27/2025 dividend equivalent rights were converted into 1.5019 shares and paid in common stock, and 441 shares were withheld and disposed to satisfy tax withholding at a price of $80.67 per share. After these transactions the reporting person beneficially owned 135,971 shares (direct).
Form 144 filed for Western Digital Corp. (WDC). The filer notifies a proposed sale of 353 common shares valued at $28,557.70 to be executed on 08/28/2025 through Morgan Stanley Smith Barney LLC on NASDAQ. The reported shares were acquired as restricted stock on 08/27/2025 from the issuer and payment was recorded on the same date. The filing also discloses five prior sales by the same person in the last three months, totaling 7,776 shares with listed gross proceeds for each transaction. The filing includes the representation that the seller is not aware of undisclosed material adverse information about the issuer.
Gene M. Zamiska, Senior Vice President & Principal Accounting Officer of Western Digital Corporation (WDC), reported multiple transactions in the issuer's common stock on August 25-26, 2025. On 08/25/2025 dividend equivalent rights were converted into 2.7201 shares upon RSU vesting and paid in kind, increasing his holding to 29,734 shares. Also on 08/25/2025 798 shares were withheld to satisfy taxes at an average implied price of $79.22, leaving 28,936 shares. On 08/26/2025 he sold 814 shares under a Rule 10b5-1 plan at an average price of $79.10, leaving 28,122 shares.
The Form 4 was signed by an attorney-in-fact on 08/27/2025. Explanations note conversion of dividend equivalents, tax-withholding for vesting, and that the sale was pursuant to a March 6, 2025 Rule 10b5-1 trading plan.
Cynthia L. Tregillis, Chief Legal Officer and Corporate Secretary of Western Digital Corporation (WDC), reported related-party equity activity on 08/25/2025. The filing shows the conversion of dividend equivalent rights into 135,354 shares of common stock in connection with restricted stock unit vesting, with a fractional cash settlement. Concurrently, 769 shares were withheld and disposed of at $79.22 per share to satisfy tax withholding obligations, leaving reported beneficial ownership figures shown on the form. The transactions were reported via Form 4 and executed under standard plan provisions.
Irving Tan, Chief Executive Officer and Director of Western Digital Corporation (WDC), reported insider transactions dated 08/25/2025. He received 13.5952 shares through conversion of dividend equivalent rights that vested and were paid one-for-one in common stock, with a cash payment for a fractional share. Separately, 247 shares were withheld and disposed to satisfy tax withholding at $79.22 per share. Reported beneficial ownership following the acquisition was 592,297 shares, and following the withholding disposal was 592,050 shares. The Form 4 was signed by an attorney-in-fact on behalf of Mr. Tan on 08/27/2025.
Insider activity at Western Digital (WDC): Vidyadhara K. Gubbi, Chief of Global Operations and an officer of Western Digital, reported transactions on 08/25/2025. Dividend equivalent rights were converted into common stock on a one-for-one basis when related restricted stock units vested, with fractional dividend equivalents settled in cash.
The report shows an addition of shares via conversion (listed as 3.8841 dividend-equivalent units converting to common stock) and a separate withholding disposition of 1,140 shares to satisfy tax withholding at an average price of $79.22. Beneficial ownership after the reported transactions is shown as 146,792 shares (down from 147,932 prior to the withholding transaction). The Form 4 is signed by an attorney-in-fact on behalf of Mr. Gubbi on 08/27/2025.
Brian Scott Davis, Chief Sales & Marketing Officer of Western Digital Corporation (WDC), reported Section 16 transactions dated 08/25/2025. Dividend equivalent rights tied to vested restricted stock units were converted into common shares on a one-for-one basis, with fractional amounts paid in cash. As part of the vesting, 969 shares were withheld to satisfy tax obligations at an indicated price of $79.22 per share. Following these transactions the reporting person is shown as beneficially owning 123,168 common shares (direct). The Form 4 was signed by an attorney-in-fact on behalf of Mr. Davis on 08/27/2025.
Gene M. Zamiska, Senior Vice President, Global Accounting & Chief at Western Digital Corporation (WDC), reported multiple transactions in the issuer's common stock associated with the vesting of restricted stock units and planned sales under a Rule 10b5-1 trading plan. Dividend equivalent rights tied to RSUs converted into 6.1142 shares and were paid in common stock on a one-for-one basis, with a fractional cash settlement. Withholding to satisfy taxes resulted in 1,797 shares disposed at a price of $74.66 per share. Separate open-market sales under a 10b5-1 plan disposed of 3,160 shares at $75.68 and 1,828 shares at $74.78, reducing beneficial ownership to 29,732 shares after the reported trades.
The transactions include both non-derivative share acquisitions from RSU settlement and routine dispositions pursuant to a pre-established trading plan, showing a net decline in direct holdings following tax withholding and planned sales.
Cynthia Tregillis, Chief Legal Officer and Corporate Secretary of Western Digital Corp (WDC), reported insider transactions on 08/21/2025 and 08/22/2025. On 08/21/2025 dividend equivalent rights were converted into common stock on a one-for-one basis and paid in shares, resulting in a reported beneficial ownership of 153,846 shares following that transaction. Also on 08/21/2025, 4,428 shares were withheld to satisfy tax obligations, reducing ownership to 149,418. On 08/22/2025 the reporting person sold 14,067 shares at an average price of $74.78 under a Rule 10b5-1 trading plan adopted May 23, 2025, leaving 135,351 shares beneficially owned. The Form 4 was signed on behalf of the reporting person by an attorney-in-fact on 08/25/2025.