CIO at Ultra Clean (NASDAQ: UCTT) sells 2,500 company shares

Rhea-AI Filing Summary

Ultra Clean Holdings, Inc. Chief Information Officer Jeffrey L. McKibben reported an open-market sale of 2,500 shares of common stock on May 8, 2026. The shares were sold at a weighted average price of $86.4784, with individual trades between $86.46 and $86.55. Following this transaction, McKibben directly holds 15,554 shares of Ultra Clean common stock.

Insights

Equity analyst

CIO’s open-market sale is modest relative to his remaining stake and appears routine.

Chief Information Officer Jeffrey L. McKibben executed an open-market sale of 2,500 Ultra Clean common shares at a weighted average price of $86.4784 on May 8, 2026. This is a straightforward discretionary sale rather than a grant, option exercise, or tax withholding event.

After the sale, McKibben continues to hold 15,554 shares directly, indicating he retains a meaningful equity position. The filing notes that trades occurred between $86.46 and $86.55, with a commitment to provide detailed price breakdowns on request, which is standard transparency for weighted-average insider sales.

Insider Trade Summary

Net Seller: 2,500 shares ($216,196)

Net Sell 1 txn

Insider McKibben Jeffrey L.

Role Chief Information Officer

Sold 2,500 shs ($216K)

Type	Security	Shares	Price	Value
Sale	Common Stock	2,500	$86.4784	$216K

Holdings After Transaction: Common Stock — 15,554 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 2,500 shares Weighted average sale price: $86.4784 per share Post-transaction holdings: 15,554 shares +1 more

4 metrics

Shares sold 2,500 shares Open-market sale on May 8, 2026

Weighted average sale price $86.4784 per share Common stock sale on May 8, 2026

Post-transaction holdings 15,554 shares Direct ownership after reported sale

Trade price range $86.46–$86.55 per share Multiple sale transactions within this range

Key Terms

weighted average sale price, open-market sale, Form 4, Common Stock

4 terms

weighted average sale price financial

"This is the weighted average sale price. Shares were sold in multiple transactions"

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.

Form 4 regulatory

"within the range set forth in this footnote (1) to this 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.

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 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^*

McKibben Jeffrey L.

(Last) (First) (Middle)

ULTRA CLEAN HOLDINGS, INC.

26462 CORPORATE AVENUE

(Street)

HAYWARD CALIFORNIA 94545

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Ultra Clean Holdings, Inc. [ UCTT ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Information Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/08/2026

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	05/08/2026		S		2,500	D	$86.4784(1)	15,554	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. This is the weighted average sale price. Shares were sold in multiple transactions at prices ranging from $86.46 to $86.55. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

	/s/ Paul Y. Cho, as attorney-in-fact for Jeffrey L. McKibben	05/12/2026
	** 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)

FAQ

What did Ultra Clean (UCTT) executive Jeffrey L. McKibben report in this Form 4?

Jeffrey L. McKibben reported selling 2,500 Ultra Clean common shares. The Chief Information Officer conducted an open-market sale on May 8, 2026, at a weighted average price of $86.4784 per share, and disclosed his updated direct holdings after the transaction.

How many Ultra Clean (UCTT) shares did the CIO sell and at what price?

The CIO sold 2,500 Ultra Clean common shares at $86.4784. The filing states this is a weighted average sale price, with multiple transactions executed in a price range between $86.46 and $86.55 per share during the trading session.

How many Ultra Clean (UCTT) shares does Jeffrey L. McKibben hold after the sale?

Following the sale, McKibben directly owns 15,554 Ultra Clean shares. This post-transaction balance reflects his remaining equity stake after disposing of 2,500 common shares in the May 8, 2026 open-market transaction disclosed in the Form 4.

Was the Ultra Clean (UCTT) insider transaction an open-market sale or another type of trade?

The transaction was an open-market sale of common stock. The Form 4 identifies the code as “S” for sale and describes it as an open-market or private transaction, with no indication of option exercises, gifts, or tax-withholding-related dispositions.

Does the Ultra Clean (UCTT) Form 4 disclose a detailed price breakdown for the insider sale?

The Form 4 provides a weighted average price with a stated range. It notes trades occurred between $86.46 and $86.55 and states the reporting person will supply full price-by-trade details to the company, security holders, or the SEC staff upon request.