WDC insider converts awards, withholds shares for taxes in Form 4

Rhea-AI Filing Summary

Western Digital Corporation (WDC) reported insider equity activity by its Chief of Global Operations on 11/20/202511/21/2025$0.0592$140.23693$139.19

Following these transactions, the insider directly owned 150,317

Insider Trade Summary

6.84 shares exercised/converted

Mixed 6 txns

Insider Gubbi Vidyadhara K

Role Chief of Global Operations

Type	Security	Shares	Price	Value
Exercise	Dividend Equivalent Rights	3.688	$0.00	--
Exercise	Common Stock	3	$0.00	--
Tax Withholding	Common Stock	693	$139.19	$96K
Exercise	Dividend Equivalent Rights	3.152	$0.00	--
Exercise	Common Stock	3	$0.00	--
Tax Withholding	Common Stock	592	$140.23	$83K

Holdings After Transaction: Dividend Equivalent Rights — 251.148 shares (Direct); Common Stock — 151,010 shares (Direct)

Footnotes (1)

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

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^*

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 Operations

3. Date of Earliest Transaction (Month/Day/Year)
11/20/2025

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	11/20/2025		M		3(1)	A	$0.0	151,599	D
Common Stock	11/20/2025		F		592(2)	D	$140.23	151,007	D
Common Stock	11/21/2025		M		3(1)	A	$0.0	151,010	D
Common Stock	11/21/2025		F		693(2)	D	$139.19	150,317	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)	11/20/2025		M			3.152	(1)	(1)	Common Stock	3.152	$0.0	254.8361	D
Dividend Equivalent Rights	(1)	11/21/2025		M			3.6884	(1)	(1)	Common Stock	3.6884	$0.0	251.1477	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	11/24/2025
	** 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 did Western Digital (WDC) disclose in this Form 4 filing?

The filing reports equity transactions by Western Digital's Chief of Global Operations, including conversion of dividend equivalent rights into common stock and share withholding to pay taxes on vested awards.

Which insider at Western Digital (WDC) is involved in this Form 4?

The transactions relate to the company's Chief of Global Operations, identified in the signature block as Vidyadhara K. Gubbi, with an attorney-in-fact signing on his behalf.

How many Western Digital (WDC) shares does the insider own after these transactions?

After the reported activity on 11/20/2025 and 11/21/2025, the insider directly owned 150,317 shares of Western Digital common stock.

What do the transaction codes M and F mean in this Western Digital Form 4?

Code M indicates the conversion or exercise of derivative securities (dividend equivalent rights) into common stock. Code F indicates shares withheld to satisfy tax obligations related to vesting of equity awards.

At what prices were Western Digital (WDC) shares withheld for taxes?

On 11/20/2025, 592 shares were withheld at $140.23 per share, and on 11/21/2025, 693 shares were withheld at $139.19 per share to cover tax obligations.

What are dividend equivalent rights in this Western Digital filing?

The filing explains that dividend equivalent rights were converted into, and paid in the form of, shares of Western Digital common stock on a one-for-one basis when the related restricted stock units vested, with cash paid only for a fractional right.