Ultra Clean Holdings director awarded 1,653 shares

The restricted stock units vest in full on the earlier of the day before the next annual stockholder meeting or May 22, 2027.

Available on EDGAR 11/03/2026 - 05:49 PM EST Accepted by SEC EDGAR 11/03/2026 - 05:49 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Ultra Clean Holdings, Inc. director Alexander M. Davern acquired an award of 1,653 shares of common stock on October 30, 2026; his reported direct position afterward was 1,653 shares. The associated restricted stock units vest 100% on the earlier of the day before the next annual stockholder meeting or May 22, 2027.

Insider Trade Summary

Grant/Award: 1,653 shares

Grant/Award 1 txn

Insider DAVERN ALEXANDER M

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	1,653	$0.00	$0.00

Holdings After Transaction: Common Stock — 1,653 shares (Direct)

Holdings Before and After: Common Stock, 0 to 1,653 shares (Direct)

Footnotes (1)

1. F1. Restricted stock units vest 100% the earlier of the day before the next annual stockholder meeting or on May 22, 2027.

Key Figures

Award: 1,653 shares of common stock Direct position after transaction: 1,653 shares Restricted stock unit vesting: 100% +1 more

4 metrics

Award 1,653 shares of common stock Reported October 30, 2026

Direct position after transaction 1,653 shares Reported following the award

Restricted stock unit vesting 100% Vests on the earlier of the day before the next annual stockholder meeting or May 22, 2027

Latest stated vesting date May 22, 2027 The units vest on this date or earlier, depending on the next annual stockholder meeting

Key Terms

Restricted stock units, vesting, Common Stock

3 terms

Restricted stock units financial

"Restricted stock units vest 100%"

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.

vesting financial

"vest 100% the earlier"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

Common Stock financial

"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.

How many shares did UCTT director Alexander M. Davern receive?

Alexander M. Davern reported an award of 1,653 shares of common stock on October 30, 2026; his reported direct position afterward was 1,653 shares.

When do UCTT director Alexander M. Davern's restricted stock units vest?

The restricted stock units vest 100% on the earlier of the day before the next annual stockholder meeting or May 22, 2027.

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

Form 4 Insider Transactions: What Each Field Means →

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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^*

DAVERN ALEXANDER M

(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)
10/30/2026

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)	10/30/2026		A		1,653	A	$0	1,653	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 on May 22, 2027.

	/s/ Paul Y. Cho, as attorney-in-fact for Alexander M. Davern	11/03/2026
	** 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)