Western Digital (WDC) director granted new dividend equivalent rights

Rhea-AI Filing Summary

Western Digital director Bruce E. Kiddoo reported an automatic grant of dividend equivalent rights tied to existing restricted stock units. On the transaction date, he acquired 0.6503 dividend equivalent rights, each linked to an equal number of underlying common shares, bringing his total dividend equivalent rights to 1.7824. These rights vest proportionately with the related RSUs and represent a contingent right to receive either one share of Western Digital common stock or the cash value of that share when the RSUs vest.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider KIDDOO BRUCE E

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^*

KIDDOO BRUCE E

(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: Bruce Kiddoo	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 Bruce Kiddoo report?

Director Bruce E. Kiddoo reported an automatic acquisition of 0.6503 dividend equivalent rights. These rights are tied to previously awarded restricted stock units and mirror their vesting schedule, providing potential future shares or cash value based on Western Digital’s common stock.

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

Dividend equivalent rights are contingent rights that mirror dividends on existing restricted stock units. For Western Digital, each right represents a potential future share of common stock or its cash value, vesting proportionately with the underlying RSUs previously granted to the director.

How many dividend equivalent rights does Bruce Kiddoo hold after this Western Digital (WDC) transaction?

After this transaction, Bruce Kiddoo holds 1.7824 dividend equivalent rights. The reported Form 4 shows that 0.6503 new rights accrued, adding to his prior balance, all tied to previously granted restricted stock units that will vest over time.

Does the Western Digital (WDC) Form 4 show an open-market buy or sell by Bruce Kiddoo?

The Form 4 does not show an open-market buy or sell. Instead, it reports an automatic grant of dividend equivalent rights associated with existing restricted stock units, classified as a grant or award acquisition rather than a discretionary market transaction.

How do the dividend equivalent rights for Western Digital (WDC) vest for Bruce Kiddoo?

The dividend equivalent rights vest proportionately with the restricted stock units to which they relate. As each underlying RSU granted to Bruce Kiddoo vests, a corresponding portion of the associated dividend equivalent rights will also vest, potentially delivering shares or cash value.