Western Digital Corp. Form 4 Filings

Western Digital Corp (WDC) reported insider equity activity by its Chief Executive Officer and director. On 11/20/2025 and 11/21/2025, dividend equivalent rights tied to restricted stock units were converted into, and paid in the form of, shares of Western Digital common stock on a one-for-one basis, with a small cash payment to settle a fractional right. On the same dates, shares were withheld to satisfy tax obligations in accordance with Rule 16b-3(e), at prices of $140.23 and $139.19 per share. After these transactions, the reporting person beneficially owned 644,863 shares of Western Digital common stock directly.

Western Digital Corp (WDC) Chief Financial Officer Kris Sennesael reported routine equity compensation activity. On 11/20/2025, 99 shares of common stock were acquired at $0.0 in connection with the conversion of dividend equivalent rights tied to vested restricted stock units. To cover tax obligations on the vesting, 18,680 shares were withheld at a price of $140.23 per share.

After these transactions, Sennesael directly owned 187,966 shares of Western Digital common stock. He also held 387.6468 dividend equivalent rights as derivative securities, which can convert into additional common shares in connection with future vesting events.

Western Digital Corporation (WDC) reported insider equity activity by its Chief of Global Operations on 11/20/202511/21/2025$0.0592$140.23693$139.19

Following these transactions, the insider directly owned 150,317

Western Digital Corporation reported an insider equity award for a senior executive. On 11/20/2025, the company’s SVP & Chief Accounting Officer received a grant of 9,907 restricted stock units of Western Digital common stock. The filing notes that each restricted stock unit represents a contingent right to receive one share of common stock, meaning the executive will receive shares in the future if the vesting conditions are met. The transaction is reported as an acquisition at a stated price of $0.0, which is typical for stock-based compensation grants rather than an open-market purchase.

Western Digital Corporation’s Chief Sales & Marketing Officer filed a Form 4 reporting routine equity-based compensation activity. On 11/20/2025 and 11/21/2025, dividend equivalent rights tied to restricted stock units were converted into shares of Western Digital common stock on a one-for-one basis at an exercise price of $0.0, consistent with stock-based awards.

On each date, a portion of shares was withheld to cover tax obligations, including 715 shares at a price of $140.23 and 592 shares at $139.19. Following these transactions, the reporting person directly beneficially owned 133,714 shares of Western Digital common stock. The activity reflects standard settlement and tax withholding mechanics for vested equity awards.

Western Digital Corp. (WDC) director Stephanie A. Streeter reported changes in her holdings of the company’s stock. On 11/20/2025, she received 1,585 shares of common stock through a grant of restricted stock units, at a stated price of $0.0 per share, held directly.

On 11/19/2025, dividend equivalent rights tied to her restricted stock units were converted into and paid in the form of common stock. This included 16 shares shown in Table I and 16.8276 dividend equivalent rights in Table II, which were settled in stock with a small cash payment for the fractional right. Following these transactions, she beneficially owned 40,407 shares indirectly through a Family Trust.

The filing notes that this indirect total also reflects Streeter’s contribution of personally held shares to the Family Trust, vesting of restricted stock units whose underlying shares were issued to the trust, and 1,984 additional stock units credited to her in connection with Western Digital’s spin-off of a former wholly owned subsidiary on February 21, 2025, based on an equity conversion ratio of 1.452526 stock units for every existing Issuer stock unit.

Western Digital Corp. (WDC) reported a Form 4 insider transaction for director Matthew E. Massengill dated 11/20/2025. He received a grant of 1,585 restricted stock units, each representing a contingent right to one share of Western Digital common stock at no cash cost.

After this grant, Massengill beneficially owns 28,897 common shares directly, 36,926 indirectly through a family trust, and 500 indirectly through an IRA. The filing notes that these holdings include 8,508 additional stock units received in connection with Western Digital’s February 21, 2025 spin-off, where each outstanding stock unit was adjusted using an equity conversion ratio of 1.452526 per unit under an Employee Matters Agreement.

Western Digital Corporation (WDC) director equity update. Director Roxanne M. Oulman reported equity transactions in Western Digital common stock and related awards. On 11/19/2025, 10 shares of common stock were acquired at a price of $0.0 through the conversion of dividend equivalent rights, bringing her directly held beneficial ownership to 4,078 shares.

On 11/20/2025, she received a grant of 1,585 restricted stock units, each representing a contingent right to one share of Western Digital common stock. After this grant, her directly held beneficial ownership increased to 5,663 shares. A small fractional dividend equivalent right was settled in cash, while the rest were paid in shares on a one-for-one basis when related restricted stock units vested.

Western Digital Corporation director reports new equity awards. A Western Digital (WDC) director filed a Form 4 disclosing equity-related transactions on 11/19/2025 and 11/20/2025. On 11/19/2025, dividend equivalent rights tied to previously granted restricted stock units converted into 10 shares of common stock at $0.0 per share, increasing the director’s direct holdings.

On 11/20/2025, the director received a grant of 1,585 restricted stock units, each representing a contingent right to one share of Western Digital common stock. After these transactions, the director directly beneficially owned 5,663 shares of Western Digital common stock. A small cash amount was also paid to settle a fractional dividend equivalent right.

Western Digital Corp. (WDC) director equity activity centers on restricted stock units and related adjustments. The reporting person received a grant of 1,585 restricted stock units of Western Digital common stock at a stated price of $0.0 per share, reflecting a stock-based compensation award. A separate transaction on 11/19/2025 shows 14 shares of common stock acquired through the exercise of derivative securities.

Following these transactions, 1,585 shares of common stock are held directly and 37,849 shares are held indirectly through a family trust. The filing explains that 14.4258 dividend equivalent rights were converted into common stock on a one-for-one basis as related restricted stock units vested, with a small cash payment for the fractional right. It also notes an additional 1,701 stock units credited in connection with Western Digital’s February 21, 2025 spin-off, based on an equity conversion ratio of 1.452526 stock units for every outstanding stock unit.

Western Digital Corp (WDC) reported insider equity activity by a director. On 11/19/2025, dividend equivalent rights tied to previously granted restricted stock units were converted into and paid in the form of 14 shares of common stock, with a small cash payment for a fractional right. Following this, the director beneficially owned 39,518 shares of common stock.

On 11/20/2025, the director received a grant of 1,915 restricted stock units, each representing a contingent right to one share of Western Digital common stock. After these transactions, the director's beneficial ownership increased to 41,433 shares held directly.

Western Digital Corp. director equity transactions were reported for November 2025. On 11/19/2025, dividend equivalent rights tied to previously granted restricted stock units were converted into and paid in the form of common stock on a one-for-one basis, resulting in an acquisition of common shares at a stated price of $0.0 per share and the elimination of the related derivative balance. On 11/20/2025, the director received a grant of 1,585 restricted stock units, each representing a contingent right to receive one share of Western Digital common stock. Following these transactions, the director held 5,353 shares of common stock directly and 25,722 shares indirectly through a family trust.

Western Digital (WDC): Director stock sale reported. A company director reported open-market sales totaling 10,000 shares of common stock on 11/05/2025 under a pre-set Rule 10b5-1 trading plan adopted on August 1, 2025. Trades executed in multiple lots showed weighted average prices from $152.99 to $164.9907. Following these transactions, the reporting person beneficially owns 39,504 shares, held directly.

The filing notes prior adjustments from the issuer’s February 21, 2025 spin-off, including 1,701 additional stock units based on an equity conversion ratio of 1.452526 per stock unit.

Western Digital (WDC) reported insider activity by CEO and director Irving Tan. On 11/03/2025, he sold a total of 20,000 shares of common stock in multiple tranches under a Rule 10b5-1 trading plan adopted on May 12, 2025. The weighted average sale prices ranged from $149.0176 to $153.9309, with underlying trade price ranges spanning $148.38 to $154.30. Following these transactions, Tan beneficially owned 645,467 shares of Western Digital common stock.

Western Digital (WDC) insider filing: Chief Legal Officer & Corp Sec Cynthia Tregillis reported transactions on 10/20/2025. Dividend equivalent rights vested and converted into 8 shares of common stock at $0.00, with a fractional amount settled in cash. To cover taxes related to vesting, 1,307 shares were withheld at a price of $121.53 (Code F under Rule 16b-3(e)). Following these transactions, she reported 149,575 shares beneficially owned directly.

Western Digital Corp (WDC) Form 4: Gene M. Zamiska, SVP & Principal Accounting Officer, reported a transaction dated 09/18/2025 showing 26.1267 dividend equivalent rights related to previously awarded restricted stock units (RSUs). Each dividend equivalent right represents a contingent right to one share of common stock or cash value and vests proportionately with the related RSUs. The filing reports 72.4915 shares beneficially owned following the transaction, held directly. The Form 4 was signed by an attorney-in-fact on behalf of Mr. Zamiska on 09/22/2025.

Cynthia L. Tregillis, Chief Legal Officer and Corporate Secretary of Western Digital Corporation (WDC), reported a change in beneficial ownership. The Form 4 discloses a transaction dated 09/18/2025 reflecting the accrual and acquisition of 118.2565 dividend equivalent rights tied to previously awarded restricted stock units (RSUs); each right converts to one share or its cash value and vests proportionately with the related RSUs. Following the reported transaction, the filing shows 300.0616 shares beneficially owned. The Form 4 was executed by an attorney-in-fact on 09/22/2025 and includes the issuer address and reporting-person role.

Irving Tan, identified as a Director and Chief Executive Officer of Western Digital Corporation (WDC), reported transactions on Form 4 for 09/18/2025 and 09/20/2025. Dividend equivalent rights tied to previously awarded restricted stock units converted into common stock on a one-for-one basis, resulting in acquisitions recorded as 368.7967 shares (09/18/2025) and 34.5851 shares (09/20/2025). In connection with RSU vesting and tax withholding, 779 shares were disposed of at $106.63 per share. Following the reported transactions, Tan beneficially owned 665,467 shares of WDC common stock (direct ownership) and retained derivative rights underlying roughly 863.1841 shares. The form was signed by an attorney-in-fact on behalf of Mr. Tan on 09/22/2025.

Stephanie A. Streeter, a director of Western Digital Corporation (WDC), reported the acquisition of 6.0673 dividend equivalent rights on 09/18/2025. The filing states these dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) and vest proportionately with those RSUs; each right represents a contingent entitlement to one share of common stock or its cash value.

After the reported transaction the filing shows 16.8276 shares beneficially owned following the transaction and indicates the transaction was reported on Form 4 and signed on behalf of the reporting person by an attorney-in-fact on 09/22/2025. No prices were reported for the dividend equivalent rights.

Ahmed Mohammed Shihab, Chief Product Officer at Western Digital Corporation (WDC), reported on Form 4 that 175.462 dividend equivalent rights related to previously awarded restricted stock units (RSUs) were acquired on 09/18/2025 and converted into 175.462 shares of common stock at a $0.0 price (they represent contingent rights to one share or cash value). After this transaction the reporting person beneficially owns 439.7364 shares directly. The filing explains the dividend equivalent rights vest proportionately with the underlying RSUs and each right corresponds to one share or its cash value.

Western Digital Corp (WDC) Form 4: Kris Sennesael, Chief Financial Officer, reported a transaction dated 09/18/2025 in which 196.707 dividend equivalent rights related to previously awarded restricted stock units (RSUs) were acquired. The filing shows 486.9318 shares beneficially owned following the reported transaction, held directly. The dividend equivalent rights accrue and vest proportionately with the related RSUs, and each right represents a contingent entitlement to one share of common stock or its cash value. The Form 4 was submitted by attorney-in-fact Sandra Garcia on 09/22/2025.

Form 4 for Western Digital Corp (WDC) reports that Roxanne M. Oulman, a director, had dividend equivalent rights credited in connection with previously awarded restricted stock units (RSUs). The filing shows a transaction dated 09/18/2025 described as an acquisition of 3.8753 dividend equivalent rights (each contingent to receive one share or cash) with an indicated price of $0.0. Following the reported transaction the filing lists 10.7481 shares beneficially owned (direct). The Form 4 was signed on behalf of Ms. Oulman by an attorney-in-fact, Sandra Garcia, on 09/22/2025. No option exercise price or cash purchase was reported; the entry is described as dividend equivalents that vest proportionately with underlying RSUs.

Matthew E. Massengill, a director of Western Digital Corporation (WDC), was issued 26.0182 shares as dividend equivalent rights tied to previously awarded restricted stock units (RSUs). The filing reports the dividend equivalents accrued on RSUs and that they vest proportionately with the underlying RSUs; each dividend equivalent represents a contingent right to receive one share of common stock or its cash value. The Form 4 reports the transaction date as 09/18/2025 and is signed by an attorney-in-fact on 09/22/2025.

Bruce E. Kiddoo, a director of Western Digital Corporation (WDC), is reporting a change in beneficial ownership dated 09/18/2025. The Form 4 shows the acquisition of 3.8753 dividend equivalent rights tied to previously awarded restricted stock units; these rights vest proportionately with the RSUs and each represents a contingent right to one share of common stock or the cash value instead. After the reported transaction, Mr. Kiddoo is shown as directly owning 10.7481 shares or share-equivalents. The form is signed on behalf of Mr. Kiddoo by an attorney-in-fact on 09/22/2025.

Vidyadhara K. Gubbi, Chief of Global Operations at Western Digital (WDC), reported acquisition of dividend equivalent rights tied to previously awarded restricted stock units (RSUs). The Form 4 shows on 09/18/2025 an acquisition of 103.087 dividend equivalent rights, each representing a contingent claim to one share or cash value, recorded at $0.00. After the transaction the reporting person beneficially owns 257.9881 shares directly. The filing explains these rights vest proportionately with the underlying RSUs.

Tunc Doluca, a director of Western Digital Corporation (WDC), reported a transaction dated 09/18/2025 on a Form 4. The filing shows the acquisition of 5.2013 dividend equivalent rights that relate to previously awarded restricted stock units (RSUs) and that vest proportionately with those RSUs. The filing states each dividend equivalent right represents a contingent right to receive one share of common stock or its cash value. After the reported transaction the filing lists 14.4258 shares (or share-equivalents) reported as beneficially owned in the line item. The Form 4 was signed by an attorney-in-fact on behalf of Mr. Doluca on 09/22/2025.

Brian Scott Davis, an officer of Western Digital Corporation (WDC), reported equity changes related to vested restricted stock units and related dividend equivalent rights. Dividend equivalent rights tied to previously awarded RSUs were converted and paid one-for-one in shares, increasing his direct common stock holdings by 79.7733 shares. To satisfy tax withholding on vesting, 961 shares were withheld and disposed of at a reported price of $106.63, leaving the reporting person with 135,015 shares beneficially owned. After the reported transactions, total direct beneficial ownership is shown as 135,015 shares, and derivative-related holdings reflect 193.8043 and 198.9141 share-equivalents from dividend equivalent accruals.

Martin I. Cole, a director of Western Digital Corporation (WDC), reported an acquisition on 09/18/2025 of dividend equivalent rights tied to previously awarded restricted stock units (RSUs). The filing shows 5.2013 dividend-equivalent shares were acquired at a reported price of $0.0, and the amount of common stock beneficially owned following the transaction is reported as 14.4258 shares (direct ownership). The filing explains these dividend equivalent rights vest proportionately with the underlying RSUs and represent contingent rights to receive one share of common stock or the cash value instead. The Form 4 was signed on behalf of Mr. Cole by an attorney-in-fact on 09/22/2025.

Kimberly Alexy, a director of Western Digital Corporation (WDC), reported receipt of dividend equivalent rights tied to previously awarded restricted stock units. The Form 4 discloses a transaction on 09/18/2025 in which 3.581 dividend equivalent rights were acquired, each representing a contingent right to one share of common stock or its cash value. The report shows 9.9317 shares beneficially owned following the transaction on a direct basis. The filing states the dividend equivalents vest proportionately with the underlying RSUs. The form was signed by an attorney-in-fact on behalf of Ms. Alexy on 09/22/2025.