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 CORP (WDC) reported insider transactions by Chief Legal Officer & Corp Sec Cynthia L. Tregillis involving common stock and dividend equivalent rights. On September 4, 2026, she sold 432 shares of common stock at $451.20 per share, reported as a sale in the open market or a private transaction.
On September 3, 2026, dividend equivalent rights were converted on a one-for-one basis into 7 shares of common stock, with a cash payment settling a fractional right, and 700 shares of common stock were delivered or withheld to pay a tax obligation in connection with vesting, at a reference value of $441.57 per share. After the conversion, 270.4819 dividend equivalent rights remained outstanding. The sale of 432 shares was effected pursuant to a Rule 10b5-1 trading plan adopted on March 6, 2026.
WESTERN DIGITAL CORP (WDC) officer Vidyadhara K Gubbi, Chief of Global Operations, reported several equity transactions. On September 4, 2026, he sold 1,795 shares of common stock at $459.8732 per share. On September 3, 2026, dividend equivalent rights converted into 14.1166 shares of common stock, and 1,764 shares of common stock were withheld to pay tax obligations incident to vesting, all held directly. No Rule 10b5-1 trading plan is reported.
WESTERN DIGITAL CORP (WDC) reported that Chief Sales & Marketing Officer Brian Scott Davis exercised dividend equivalent rights and handled related tax withholding on September 3, 2026. Dividend equivalent rights tied to vested restricted stock units converted one-for-one into common stock, resulting in an acquisition of 7 shares of common stock and a small cash payment for a fractional right. Separately, 882 shares of common stock were withheld to pay tax obligations in connection with the vesting, in accordance with Rule 16b-3(e). No Rule 10b5-1 trading plan is indicated.
WESTERN DIGITAL CORP (WDC) has a notice of proposed sale filed under Rule 144 for its common stock by officer Vidyadhara K. Gubbi. The notice covers 1,795 shares of restricted stock, originally acquired from the issuer on June 3, 2026, to be sold through Morgan Stanley Smith Barney LLC.
WESTERN DIGITAL CORP (WDC) has a notice from officer Cynthia Lock Tregillis to sell common stock under Rule 144. The planned sale covers 432 shares of common stock held in an account at Morgan Stanley Smith Barney LLC Executive Financial Services.
Over the prior three months, Cynthia Lock Tregillis reported multiple sales of Western Digital common stock, including 432 shares on June 5, 2026; 808 shares on July 21, 2026; and several transactions in August 2026.
WESTERN DIGITAL CORP (WDC) director and Chief Executive Officer Irving Tan reported internal transfers involving 112,500 shares of common stock tied to personal estate and investment structuring. On August 31, 2026, 112,500 directly held shares were transferred to a Bahamas investment company owned by Tan and his spouse, with the investment company recording an interest-free, on-demand shareholder loan to them in an amount equal to the value of the transferred shares and no cash consideration paid. On September 1, 2026, the rights of Tan and his spouse in that investment company and in the related loan were transferred to a revocable trust acting via its trustee, so that trust assets are held through the investment company for estate planning purposes. A separate indirect holding of 209,000 shares is reported as held through a personal investment company. No Rule 10b5-1 trading plan is reported.
WESTERN DIGITAL CORP (WDC) director Stephanie A. Streeter reported indirect sales of a total of 5,600 shares of common stock held by a family trust in late August and early September 2026. The reported transactions were sales in the open market or private transactions, and no Rule 10b5-1 trading plan is reported. Streeter also reports 1,585 shares held directly as of August 31, 2026.
WESTERN DIGITAL CORP (WDC) is the issuer of common stock that Stephanie A. Streeter, associated to an affiliate, has filed to sell under Rule 144. The notice covers up to 10,000 shares of Western Digital common stock to be sold through Fidelity Brokerage Services LLC on or after August 31, 2026. The shares derive from stock awards granted as compensation on November 14, 2019, November 16, 2020, and November 16, 2021, and are held in the Edward S and Stephanie A Streeter Living Trust.
WESTERN DIGITAL CORP (WDC) reported insider equity activity by Chief Legal Officer & Corporate Secretary Cynthia L. Tregillis. She sold 1,483 shares of common stock in open-market transactions on August 26–27, 2026 at prices of $450.78 and $478.36 per share, effected under a Rule 10b5-1 trading plan adopted March 6, 2026. In connection with vesting equity awards, 2,402 shares were withheld to satisfy tax obligations under Rule 16b-3(e), and 3,878 restricted stock units were granted, each representing a right to one share. Dividend Equivalent Rights tied to vested RSUs were also converted into an equivalent number of common shares, with a cash payment made only for a fractional right.
WESTERN DIGITAL CORP (WDC) director and Chief Executive Officer Irving Tan reported several equity compensation-related transactions. On August 25–26, 2026, dividend equivalent rights were converted into about 74.447 shares of common stock in connection with vesting of restricted stock units, and 16,548 restricted stock units were granted. To cover tax obligations upon vesting, 3,790 shares of common stock were withheld at prices of $450.75 and $468.88 per share. A footnote also states that 209,000 shares were transferred to Tan’s personal investment company as a change in form of beneficial ownership exempt under Rule 16a-13.