Western Digital director granted dividend equivalent rights

Cole Martin I reported acquisition or exercise transactions in this Form 4 filing.

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Form Type

Rhea-AI Filing Summary

Cole Martin I reported acquisition or exercise transactions in this Form 4 filing.

WESTERN DIGITAL CORP director Cole Martin I reported a small compensation-related award tied to existing equity grants. On June 17, 2026, he received 0.4038 Dividend Equivalent Rights, each linked to previously awarded restricted stock units and representing a contingent right to receive one share of common stock or its cash value. Following this award, his holdings of these derivative rights total 2.5573 units, which will vest proportionately with the underlying RSUs.

Insider Trade Summary

Grant/Award: 0.4038 shares

Grant/Award 1 txn

Insider Cole Martin I

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights	0.4038	$0.00	$0.00

Holdings After Transaction: Dividend Equivalent Rights — 2.5573 contracts (Direct)

Footnotes (1)

F1. 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.

Key Figures

Dividend Equivalent Rights granted: 0.4038 rights Total Dividend Equivalent Rights after transaction: 2.5573 rights Underlying common stock per right: 1 share/right +1 more

4 metrics

Dividend Equivalent Rights granted 0.4038 rights Award on June 17, 2026

Total Dividend Equivalent Rights after transaction 2.5573 rights Holdings following June 17, 2026 award

Underlying common stock per right 1 share/right Each right is a contingent claim on one share or cash value

Transaction code A Grant, award, or other acquisition of derivative rights

Key Terms

Dividend Equivalent Rights, restricted stock units (RSUs), contingent right, common stock

4 terms

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

"Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock..."

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.

FAQ

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What did Western Digital (WDC) director Cole Martin I report in this Form 4?

Cole Martin I reported receiving 0.4038 Dividend Equivalent Rights on June 17, 2026. These are compensation-related awards tied to previously granted RSUs, increasing his total Dividend Equivalent Rights position to 2.5573 units after the transaction.

What are Dividend Equivalent Rights in the Western Digital (WDC) filing?

Dividend Equivalent Rights are awards that accrue on previously granted RSUs and vest with those RSUs. Each right represents a contingent claim to receive one share of Western Digital common stock or the cash value of that share when the related RSUs vest.

How many Dividend Equivalent Rights did the Western Digital (WDC) director receive?

The director received 0.4038 Dividend Equivalent Rights on June 17, 2026. These rights are linked to earlier restricted stock unit awards and increase his total Dividend Equivalent Rights position to 2.5573 units after the reported transaction.

What is the total Dividend Equivalent Rights position after this Western Digital (WDC) transaction?

After the June 17, 2026 award, the director holds 2.5573 Dividend Equivalent Rights. These derivative rights vest proportionately with the underlying RSUs and may settle in either Western Digital common stock or an equivalent cash amount at vesting.

Does this Western Digital (WDC) Form 4 show an open-market stock purchase or sale?

No, the Form 4 shows a grant of 0.4038 Dividend Equivalent Rights, classified as an acquisition award. It does not report any open-market purchases or sales of Western Digital common stock by the director in this specific filing.

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Accepted by SEC EDGAR 06/22/2026 - 09:15 PM EDT

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)
06/17/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Dividend Equivalent Rights	⁽¹⁾	06/17/2026		A		0.4038		⁽¹⁾	⁽¹⁾	Common Stock	0.4038	$0.0	2.5573	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	06/22/2026
	** 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)

Source: View Original Filing on SEC EDGAR