[Form 4] Western Digital Corp. Insider Trading Activity

Rhea-AI Filing Summary

Western Digital Corp (WDC) Chief of Global Operations Vidyadhara K. Gubbi reported multiple transactions on June 20, 2025:

• Acquired 28 shares of common stock through conversion of dividend equivalent rights at $0.00 per share
• Disposed of 8,218 shares at $59.29 per share for tax withholding related to restricted stock unit vesting
• Following these transactions, Gubbi directly owns 164,223 shares of WDC common stock
• Maintains 183.23 dividend equivalent rights following the reported transactions

The transactions were executed in accordance with Rule 16b-3(e) for tax obligation payment through security withholding. The Form 4 was filed by Sandra Garcia as attorney-in-fact for Gubbi on June 24, 2025, within the required reporting timeline.

Positive

• Chief of Global Operations Vidyadhara K. Gubbi maintains significant skin in the game with 164,223 shares held directly after the reported transactions
• The insider's stock disposition was primarily for tax obligations (8,218 shares) rather than discretionary selling, suggesting confidence in the company

Negative

• Small reduction in insider ownership through tax-related share withholding at $59.29 per share
• The transaction represents automatic vesting and tax withholding rather than active insider purchasing

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
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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^*

Gubbi Vidyadhara K

(Last) (First) (Middle)

C/O WESTERN DIGITAL CORPORATION

5601 GREAT OAKS PARKWAY

(Street)

SAN JOSE CA 95119

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
WESTERN DIGITAL CORP [ WDC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief of Global Ops

3. Date of Earliest Transaction (Month/Day/Year)
06/20/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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
Common Stock	06/20/2025		M		28(1)	A	$0.0	172,441	D
Common Stock	06/20/2025		F		8,218(2)	D	$59.29	164,223	D

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)	06/20/2025		M			28.2277	(1)	(1)	Common Stock	28.2277	$0.0	183.2268	D

Explanation of Responses:

1. The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalent rights relate. A cash amount was also paid to the holder to settle a fractional dividend equivalent right.

2. Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).

	By: /s/ Sandra Garcia Attorney-in-Fact For: Vidyadhara K. Gubbi	06/24/2025
	** 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.

FAQ

What insider trading activity occurred at WDC on June 20, 2025?

WDC's Chief of Global Operations, Vidyadhara K. Gubbi, acquired 28 shares through dividend equivalent rights conversion and disposed of 8,218 shares at $59.29 per share for tax withholding purposes related to the vesting of restricted stock units.

How many WDC shares does Vidyadhara Gubbi own after the June 20, 2025 transactions?

After the reported transactions, Vidyadhara Gubbi directly owns 164,223 shares of Western Digital (WDC) common stock.

What was the purpose of WDC's share disposal in the Form 4 filing?

The disposal of 8,218 shares was for payment of tax obligations through withholding securities incident to the vesting of restricted stock units, conducted in accordance with Rule 16b-3(e).

What happened to WDC's dividend equivalent rights in the June 20, 2025 transaction?

The dividend equivalent rights were converted into WDC common stock on a one-for-one basis (28.2277 shares) in connection with restricted stock unit vesting, with a cash payment made to settle the fractional dividend equivalent right.

What is the current position of Vidyadhara K. Gubbi at Western Digital (WDC)?

Vidyadhara K. Gubbi serves as the Chief of Global Operations at Western Digital Corporation (WDC).