Western Digital (WDC) director receives dividend equivalent rights grant

Rhea-AI Filing Summary

Western Digital director Cole Martin I received a grant of dividend equivalent rights tied to previously awarded restricted stock units. On this Form 4, he acquired 0.7857 dividend equivalent rights, bringing his total to 2.1535. These rights will vest in step with the related RSUs and each represents a contingent right to receive one share of common stock or the cash value.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Cole Martin I

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights	0.786	$0.00	--

Holdings After Transaction: Dividend Equivalent Rights — 2.154 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^*

Cole Martin I

(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		0.7857		(1)	(1)	Common Stock	0.7857	$0.0	2.1535	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: Martin Cole	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 Cole Martin I report?

Cole Martin I reported an acquisition of dividend equivalent rights linked to prior restricted stock units. He received 0.7857 dividend equivalent rights, increasing his holdings to 2.1535. These rights vest proportionately with the related RSUs and can settle in stock or cash.

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

Dividend equivalent rights are incentives that mirror dividends on restricted stock units. For this grant, each right is a contingent claim to one share of Western Digital common stock, or its cash value, and vests on the same schedule as the underlying RSUs previously awarded.

How many dividend equivalent rights did Western Digital (WDC) grant in this filing?

The filing shows a grant of 0.7857 dividend equivalent rights to the reporting person. After this grant, his total dividend equivalent rights position is 2.1535. These amounts are tied to earlier RSU awards and follow their vesting schedule rather than representing an open-market purchase.

Does the Western Digital (WDC) Form 4 reflect an open-market stock purchase?

No, the Form 4 records a compensation-related acquisition coded as a grant, not an open-market stock purchase. The transaction involves dividend equivalent rights connected to existing RSUs, which may eventually settle in common stock or cash as the underlying RSUs vest over time.

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

The dividend equivalent rights vest proportionately with the restricted stock units to which they relate. As each portion of the underlying RSUs vests, a corresponding portion of these rights vests, potentially delivering Western Digital common shares or their cash value to the reporting person.