Western Digital (WDC) director receives dividend equivalent rights award

Rhea-AI Filing Summary

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

Western Digital director Tunc Doluca received a grant of 0.6503 dividend equivalent rights tied to previously awarded restricted stock units. Following this award, he holds 1.7824 dividend equivalent rights, each representing a contingent right to receive one share of common stock or its cash value as the related RSUs vest.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider DOLUCA TUNC

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights	0.65	$0.00	--

Holdings After Transaction: Dividend Equivalent Rights — 1.782 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED 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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/18/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Dividend Equivalent Rights	(1)	03/18/2026		A		0.6503		(1)	(1)	Common Stock	0.6503	$0.0	1.7824	D

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 Doluca	03/19/2026
	** Signature of Reporting Person	Date
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)

FAQ

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

Western Digital reported that director Tunc Doluca received 0.6503 dividend equivalent rights. These rights are tied to previously granted restricted stock units and represent compensation, not an open-market stock purchase or sale, making this a routine equity-related award.

What are the dividend equivalent rights granted to the Western Digital director?

The dividend equivalent rights accrue on existing restricted stock units and vest proportionately with them. Each right represents a contingent claim to receive one share of Western Digital common stock or its cash value, depending on how the company settles the award at vesting.

How many dividend equivalent rights does Tunc Doluca hold after this WDC transaction?

After the reported transaction, Tunc Doluca holds a total of 1.7824 dividend equivalent rights. These rights are linked to his previously awarded restricted stock units and will vest over time according to the same schedule and conditions as the related RSUs.

Was this Western Digital Form 4 transaction a stock purchase or sale?

No, the transaction was not an open-market purchase or sale of Western Digital shares. It was an acquisition coded as a grant or award of dividend equivalent rights, which function as additional equity-based compensation connected to Doluca’s existing restricted stock units.

How do the dividend equivalent rights for WDC vest for Tunc Doluca?

The dividend equivalent rights vest proportionately with the restricted stock units to which they relate. As each portion of the underlying RSUs vests over time, a corresponding portion of the associated dividend equivalent rights also vests on the same schedule and terms.