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[Form 4] WESTERN DIGITAL CORP Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

DOLUCA TUNC reported acquisition or exercise transactions in this Form 4 filing.

Western Digital Corp director Tunc Doluca reported a compensation-related award of 0.3342 Dividend Equivalent Rights tied to previously granted restricted stock units. After this grant, he holds 2.1166 Dividend Equivalent Rights. Each right represents a contingent right to receive one share of Western Digital common stock or its cash value, vesting proportionately with the underlying RSUs.

Positive

  • None.

Negative

  • None.
Insider DOLUCA TUNC
Role null
Type Security Shares Price Value
Grant/Award Dividend Equivalent Rights 0.334 $0.00 --
Holdings After Transaction: Dividend Equivalent Rights — 2.117 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Dividend Equivalent Rights granted 0.3342 rights Grant code A on 2026-06-17
Dividend Equivalent Rights after transaction 2.1166 rights Holdings following the reported grant
Underlying common stock 0.3342 shares Underlying security shares tied to this grant
Exercise price $0.0000 per right Conversion or exercise price for the rights
Dividend Equivalent Rights financial
"The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs)"
Dividend equivalent rights are promises that mirror the cash payments shareholders get from a company’s profits, but they are paid to holders of certain awards (like stock options or restricted stock units) rather than to actual shares. Think of them as a paycheck top‑up that matches dividends while the award is not yet a real stock, and they matter to investors because they add to employee compensation costs and potential share dilution, affecting company profitability and per‑share value.
restricted stock units (RSUs) financial
"The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs)"
Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.
contingent right financial
"Each dividend equivalent right represents a contingent right to receive one share"
common stock financial
"to receive one share of the Issuer's common stock or the cash value thereof"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
DOLUCA TUNC
(Last)(First)(Middle)
C/O WESTERN DIGITAL CORPORATION
5601 GREAT OAKS PARKWAY
(Street)
SAN JOSE CALIFORNIA 95119
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
WESTERN DIGITAL CORP [ WDC ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/17/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Dividend Equivalent Rights(1)06/17/2026A0.3342 (1) (1)Common Stock0.3342$0.02.1166D
Explanation of Responses:
1. The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.
By: /s/ Sandra Garcia Attorney-in-Fact For: Tunc Doluca06/22/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Western Digital (WDC) report for Tunc Doluca?

Western Digital reported that director Tunc Doluca received 0.3342 Dividend Equivalent Rights. These are compensation-related awards tied to prior RSU grants, bringing his total Dividend Equivalent Rights holdings reported in this filing to 2.1166.

Is the Western Digital (WDC) Form 4 for Tunc Doluca a stock sale or purchase?

The Form 4 shows an acquisition of 0.3342 Dividend Equivalent Rights, not an open-market stock sale or purchase. It reflects a grant or award connected to existing restricted stock units rather than trading Western Digital common shares.

How many Dividend Equivalent Rights does Tunc Doluca hold after this Western Digital (WDC) transaction?

Following the reported transaction, Tunc Doluca holds 2.1166 Dividend Equivalent Rights. These rights vest in step with the related restricted stock units and each represents a contingent right to receive one Western Digital common share or its cash value.

What do Dividend Equivalent Rights represent for Western Digital (WDC) insiders?

For Western Digital insiders, each Dividend Equivalent Right represents a contingent right to receive one share of common stock or the cash value. They accrue on previously awarded restricted stock units and vest proportionately with the underlying RSUs as those RSUs vest over time.

Are the Dividend Equivalent Rights in the Western Digital (WDC) Form 4 tied to restricted stock units?

Yes. The Form 4 explains that these Dividend Equivalent Rights accrued on previously awarded restricted stock units. They vest proportionately with those RSUs, aligning the timing of potential share or cash value delivery with the RSU vesting schedule.