Western Digital director sells 750 shares

Western Digital Corp director Bruce E Kiddoo reported an open-market sale of company common stock.

Rhea-AI Filing Summary

Western Digital Corp director Bruce E Kiddoo reported an open-market sale of company common stock. On May 28, 2026, he sold 750 shares at an average price of $528.52 per share.

After this transaction, Kiddoo directly holds 3,903 Western Digital shares, with no derivative positions listed in this filing.

Insights

Equity governance analyst

Director executes a modest open-market share sale while retaining a core position.

Director Bruce E Kiddoo sold 750 shares of Western Digital common stock in an open-market sale on May 28, 2026 at $528.52 per share. The transaction is categorized as a non-derivative sale of common stock.

Following the sale, Kiddoo directly owns 3,903 shares. The filing shows no accompanying option exercises, gifts, or tax-withholding events, and the derivative section is empty, indicating no remaining derivative positions disclosed here. The net effect is a net-sell of 750 shares as summarized in the filing.

From an ownership perspective, this appears as a routine adjustment rather than a wholesale exit, as the director continues to hold a meaningful share position. Subsequent company filings may provide additional context if his ownership level changes further over time.

Insider Trade Summary

Net Seller: 750 shares

Net Sell 1 txn

Insider KIDDOO BRUCE E

Role Director

Sold 750 shs ($396K)

Type	Security	Shares	Price	Value
Sale	Common Stock	750	$528.52	$396K

Holdings After Transaction: Common Stock — 3,903 shares (Direct)

Key Figures

Shares sold: 750 shares Sale price: $528.52 per share Shares owned after transaction: 3,903 shares +1 more

4 metrics

Shares sold 750 shares Non-derivative open-market sale on May 28, 2026

Sale price $528.52 per share Average price for the 750 shares sold

Shares owned after transaction 3,903 shares Total direct Western Digital holdings after sale

Net share change -750 shares Net-sell direction from transaction summary

Key Terms

open-market sale, Common Stock, Form 4, non-derivative, +1 more

5 terms

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

""security_title": "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.

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

non-derivative financial

""transaction_type": "non-derivative""

net-sell financial

""netBuySellDirection": "net-sell""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Western Digital (WDC) disclose for Bruce E Kiddoo?

Western Digital reported that director Bruce E Kiddoo sold 750 shares of its Common Stock in an open-market sale on May 28, 2026. The sale was reported on a Form 4 insider trading filing.

At what price did Bruce E Kiddoo sell Western Digital (WDC) shares?

Bruce E Kiddoo sold his 750 Western Digital shares at an average price of $528.52 per share. This price reflects the weighted average sale price reported for the non-derivative open-market transaction on May 28, 2026.

How many Western Digital (WDC) shares does Bruce E Kiddoo own after this sale?

After the reported sale, Bruce E Kiddoo directly owns 3,903 shares of Western Digital common stock. This figure represents his total direct holdings following the transaction as disclosed in the Form 4 filing.

Was Bruce E Kiddoo’s Western Digital (WDC) transaction a buy or a sell?

The transaction was a sale. The Form 4 lists transaction code "S", describing an open-market sale of 750 shares of Western Digital common stock, making it a clearly identified insider selling transaction rather than a purchase or option exercise.

Did the Western Digital (WDC) Form 4 show any option exercises or derivatives for Bruce E Kiddoo?

No derivative activity was reported. The Form 4 indicates a non-derivative transaction involving common stock only, and the derivativeSummary section is empty, showing no remaining options, warrants, or other derivative securities in this particular filing.

What is the net share change from Bruce E Kiddoo’s Western Digital (WDC) trade?

The filing’s transaction summary shows a net-sell of 750 shares. Kiddoo sold 750 Western Digital common shares and, after this transaction, directly holds 3,903 shares, with no additional buy, gift, or restructuring transactions reported.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/29/2026 - 06:13 PM Learn about SEC filing dates

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^*

KIDDOO BRUCE E

(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)
05/28/2026

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
Common Stock	05/28/2026		S		750	D	$528.52	3,903	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:

	By: /s/ Sandra Garcia Attorney-in-Fact For: Bruce Kiddoo	05/29/2026
	** 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)