[Form 4] Western Digital Corp. Insider Trading Activity

Rhea-AI Filing Summary

Western Digital Corp. reported a grant of 27,810 restricted stock units (RSUs) to Ahmed Shihab Mohammed, the company's Chief Product Officer, with a transaction date of 08/26/2025. Each RSU represents a contingent right to one share of common stock and the reported price is $0.0, indicating a grant rather than a purchase. After the grant, the reporting person is shown as beneficially owning 184,234 shares. The Form 4 was signed by an attorney-in-fact on behalf of Ahmed Shihab Mohammed on 08/28/2025.

Positive

• 27,810 RSU grant aligns the Chief Product Officer's interests with shareholders by tying compensation to equity
• Post-grant beneficial ownership of 184,234 shares increases executive ownership stake and signaling alignment

Negative

• None.

Insights

Financial Analyst

TL;DR: Routine executive equity grant increases insider alignment without immediate cash impact.

The 27,810 RSU award to the Chief Product Officer is a standard compensation mechanism that vests into common shares and aligns management incentives with shareholders. The grant is reported at a $0.0 price, consistent with restricted awards rather than a market purchase. The post-grant beneficial ownership of 184,234 shares provides context on the executive's stake but the filing does not disclose vesting schedule, grant value, or proportionate dilution, limiting direct assessment of financial impact.

Corporate Governance Expert

TL;DR: Typical disclosure of an equity compensation award; no governance concerns shown.

This Form 4 documents a non-derivative issuance of RSUs to a named officer, properly disclosed under Section 16 rules. The filing identifies the reporting person as an officer and gives post-transaction ownership. The record is procedural and compliant in form. Missing details include vesting terms and whether the grant was part of a preapproved equity plan, which are not provided in this form.

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^*

Shihab Ahmed Mohammed

(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 Product Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/26/2025

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(1)	08/26/2025		A		27,810	A	$0.0	184,234	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

Explanation of Responses:

1. Represents the grant of restricted stock units to the Reporting Person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

	By: /s/ Sandra Garcia Attorney-in-Fact For: Ahmed Mohammed Shihab	08/28/2025
	** 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 WDC disclose in this Form 4 filed for Ahmed Shihab Mohammed?

The filing shows a grant of 27,810 restricted stock units (RSUs) on 08/26/2025 and reports 184,234 shares beneficially owned after the transaction.

What is the reported price for the RSU grant on the WDC Form 4?

The transaction is reported at a price of $0.0, indicating an equity grant (restricted stock units) rather than a market purchase.

What role does Ahmed Shihab Mohammed hold at Western Digital (WDC)?

The Form 4 identifies the reporting person as the company's Chief Product Officer.

When was the Form 4 signed and by whom?

The Form 4 was signed by an Attorney-in-Fact, Sandra Garcia, on behalf of Ahmed Shihab Mohammed on 08/28/2025.

Does the Form 4 disclose vesting terms or the equity plan for the RSUs?

No. The submitted Form 4 states the RSU grant but does not disclose vesting schedules or the specific equity plan within this filing.