Ultra Clean director awarded 2,575 stock units

Ultra Clean Holdings, Inc. director David T. Ibnale reported a compensation-related stock award.

Rhea-AI Filing Summary

Ultra Clean Holdings, Inc. director David T. Ibnale reported a compensation-related stock award. He acquired 2,575 shares of common stock through a grant at no cash cost, increasing his directly held position to 47,816 shares.

The award is in the form of restricted stock units that vest 100% on the earlier of the day before the next annual stockholder meeting or one year from the grant date. This filing reflects routine equity compensation rather than an open-market purchase or sale.

Insider Trade Summary

Grant/Award: 2,575 shares

Grant/Award 1 txn

Insider IBNALE DAVID T

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,575	$0.00	$0.00

Holdings After Transaction: Common Stock — 47,816 shares (Direct)

Footnotes (1)

1. F1. Restricted stock units vest 100% the earlier of the day before the next annual stockholder meeting or 1 year from the date of grant.

Key Figures

Shares granted: 2,575 shares Grant price: $0.0000 per share Shares held after: 47,816 shares +1 more

4 metrics

Shares granted 2,575 shares Grant of common stock to director on 2026-05-22

Grant price $0.0000 per share Compensation-related stock grant with no cash cost

Shares held after 47,816 shares Director’s direct holdings following the transaction

Vesting schedule 100% by next meeting or 1 year Restricted stock units vest on earlier of those dates

Key Terms

Restricted stock units, Grant, award, or other acquisition, Common Stock

3 terms

Restricted stock units financial

"Restricted stock units vest 100% the earlier of the day before the next annual stockholder meeting"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

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.

FAQ

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

What insider transaction did Ultra Clean (UCTT) report for David T. Ibnale?

Director David T. Ibnale received a grant of 2,575 shares of Ultra Clean common stock as equity compensation. The grant carried a zero purchase price and increased his direct holdings to 47,816 shares following the transaction.

Was the Ultra Clean (UCTT) transaction an open-market buy or sell?

The transaction was not an open-market buy or sell. It was a Form 4 grant coded “A,” meaning a grant, award, or other acquisition of 2,575 shares as compensation, with no cash paid per share by the director.

How many Ultra Clean (UCTT) shares does David T. Ibnale hold after this grant?

After the grant of 2,575 shares, David T. Ibnale directly holds 47,816 shares of Ultra Clean common stock. This total reflects his position immediately following the reported compensation-related transaction on the Form 4.

What are the vesting terms of the Ultra Clean (UCTT) restricted stock units?

The restricted stock units vest 100% on the earlier of the day before Ultra Clean’s next annual stockholder meeting or one year from the grant date. This creates a time-based vesting schedule tied to governance and annual meeting timing.

What does transaction code “A” mean in the Ultra Clean (UCTT) Form 4?

Transaction code “A” indicates a grant, award, or other acquisition of securities, typically as compensation. In this case, it reflects David T. Ibnale’s receipt of 2,575 shares via restricted stock units rather than an open-market purchase.

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

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Accepted by SEC EDGAR 05/27/2026 - 09:46 PM EDT 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^*

IBNALE DAVID T

(Last) (First) (Middle)

ULTRA CLEAN HOLDINGS, INC.

26462 CORPORATE AVE

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026

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(1)	05/22/2026		A		2,575	A	$0	47,816	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. Restricted stock units vest 100% the earlier of the day before the next annual stockholder meeting or 1 year from the date of grant.

	/s/ Paul Y. Cho, as attorney-in-fact for David T. ibnAle	05/27/2026
	** 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)