Ultra Clean Holdings (NASDAQ: UCTT) HR SVP sells 8,691 shares

Rhea-AI Filing Summary

Ultra Clean Holdings, Inc. senior vice president of global human resources Jamie J. Palfrey reported an open-market sale of the company’s common stock. On May 5, 2026, Palfrey sold 8,691 shares of Ultra Clean common stock at a price of $79.725 per share. After this transaction, Palfrey directly holds 16,446 shares of Ultra Clean common stock. This filing reflects a net reduction in Palfrey’s direct ownership position and documents the details of the sale for shareholders.

Insider Trade Summary

Net Seller: 8,691 shares ($692,890)

Net Sell 1 txn

Insider Palfrey Jamie J.

Role SVP, Global Human Resources

Sold 8,691 shs ($693K)

Type	Security	Shares	Price	Value
Sale	Common Stock	8,691	$79.725	$693K

Holdings After Transaction: Common Stock — 16,446 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 8,691 shares Sale price per share: $79.725 per share Shares held after transaction: 16,446 shares +2 more

5 metrics

Shares sold 8,691 shares Common Stock sold on May 5, 2026

Sale price per share $79.725 per share Open-market sale price on May 5, 2026

Shares held after transaction 16,446 shares Direct ownership after sale

Sell transactions count 1 transaction Number of sale transactions reported

Net shares sold 8,691 shares Net buy/sell shares in transaction summary

Key Terms

open-market sale, Common Stock, total shares following transaction, Form 4, +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.

total shares following transaction financial

""total_shares_following_transaction": "16446.0000""

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.

transaction code "S" regulatory

""transaction_code": "S""

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^*

Palfrey Jamie J.

(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)
	SVP, Global Human Resources

2a. Foreign Trading Symbol

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

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	05/05/2026		S		8,691	D	$79.725	16,446	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:

	/s/ Paul Y. Cho, as attorney-in-fact for Jamie J. Palfrey	05/07/2026
	** 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 insider transaction did UCTT report in this Form 4?

Ultra Clean Holdings reported that executive Jamie J. Palfrey completed an open-market sale of company common stock. The transaction involves selling 8,691 shares and is recorded as a standard insider trade for regulatory disclosure purposes.

How many Ultra Clean (UCTT) shares did Jamie J. Palfrey sell?

Jamie J. Palfrey sold 8,691 shares of Ultra Clean common stock. This sale was executed as an open-market transaction and is documented in the Form 4 filing as a non-derivative sale of common stock.

At what price were the UCTT shares sold in this insider transaction?

The 8,691 Ultra Clean shares were sold at a price of $79.725 per share. This per-share sale price is disclosed in the Form 4 as part of the transaction details for the open-market sale.

How many UCTT shares does Jamie J. Palfrey hold after the sale?

Following the transaction, Jamie J. Palfrey directly owns 16,446 shares of Ultra Clean common stock. The Form 4 explicitly lists this total as the number of shares held after the reported sale.

What role does Jamie J. Palfrey hold at Ultra Clean (UCTT)?

Jamie J. Palfrey serves as senior vice president of global human resources at Ultra Clean Holdings. This executive role is identified in the Form 4 to clarify the insider status associated with the reported stock transaction.

Was this UCTT insider trade a buy or a sell transaction?

The Form 4 shows a sell transaction, coded as an open-market sale. Palfrey disposed of 8,691 shares of common stock, resulting in a net-sell direction in the filing’s transaction summary.