Western Digital (WDC) director awarded new dividend equivalent rights

Rhea-AI Filing Summary

Oulman Roxanne reported acquisition or exercise transactions in this Form 4 filing.

Western Digital Corp director Roxanne Oulman reported a small compensation-related stock accrual. She received 0.6503 dividend equivalent rights tied to previously awarded restricted stock units (RSUs), each representing a contingent right to receive one share of common stock or its cash value.

These dividend equivalent rights vest proportionately with the related RSUs rather than being an open-market purchase or sale. Following this grant, her reported derivative holdings in these rights total 1.7824, reflecting routine equity-based compensation rather than an active trading decision.

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

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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^*

Oulman Roxanne

(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: Roxanne Oulman	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) director Roxanne Oulman report?

Roxanne Oulman reported receiving 0.6503 dividend equivalent rights linked to existing RSUs. These are compensation-related awards, not open-market trades, and increase her derivative exposure to Western Digital common stock on a contingent, vesting-based basis.

What are dividend equivalent rights in the Western Digital (WDC) Form 4 filing?

Dividend equivalent rights are awards that accrue on restricted stock units and mirror dividends on common stock. Each right represents a contingent claim to one Western Digital common share, or its cash value, vesting in step with the underlying RSUs.

How many Western Digital (WDC) dividend equivalent rights did Roxanne Oulman acquire?

She acquired 0.6503 dividend equivalent rights associated with previously granted RSUs. Each right corresponds to 0.6503 underlying Western Digital common shares, aligning her compensation with shareholder returns through dividend-linked accruals on unvested equity awards.

Does the Western Digital (WDC) Form 4 show Roxanne Oulman buying or selling stock?

The filing does not show an open-market buy or sell. It reports an acquisition coded as a grant or award, reflecting 0.6503 dividend equivalent rights added as part of her existing restricted stock unit compensation package.

How do the dividend equivalent rights in this Western Digital (WDC) filing vest?

The dividend equivalent rights vest proportionately with the restricted stock units to which they relate. As each underlying RSU vests, the associated dividend equivalent right also vests, potentially delivering Western Digital common stock or its cash value to the director.

What is Roxanne Oulman’s total reported dividend equivalent rights position in Western Digital (WDC)?

After the reported award, her total derivative position in dividend equivalent rights is 1.7824. This reflects the aggregate of similar compensation-linked rights tied to Western Digital restricted stock units disclosed in this Form 4.