Ultra Clean SVP granted 5,567 restricted shares

Johnson Samuel Williams reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Johnson Samuel Williams reported acquisition or exercise transactions in this Form 4 filing.

Ultra Clean Holdings, Inc. reported that SVP, Services Business Samuel Williams received an equity grant of 5,567 shares of Common Stock as a compensation award. The grant was made at no cash cost to him and increased his directly held stake to 16,436 shares.

According to the footnote, these restricted stock units vest over three years, with equal portions vesting on each anniversary of the vesting commencement date of May 22, 2026. This structure ties part of his compensation to the company’s long-term performance and his continued service.

Insider Trade Summary

Grant/Award: 5,567 shares

Grant/Award 1 txn

Insider Johnson Samuel Williams

Role SVP, Services Business

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	5,567	$0.00	$0.00

Holdings After Transaction: Common Stock — 16,436 shares (Direct)

Footnotes (1)

1. F1. Restricted stock units vest over 3 years with equal parts vesting on each anniversary of the vesting commencement date of May 22, 2026.

Key Figures

Equity grant size: 5,567 shares Price per share for grant: $0.00 per share Total holdings after grant: 16,436 shares +2 more

5 metrics

Equity grant size 5,567 shares Common Stock grant to SVP on May 22, 2026 vesting schedule

Price per share for grant $0.00 per share Grant, award, or other acquisition of Common Stock

Total holdings after grant 16,436 shares Common Stock directly owned following the transaction

Vesting period 3 years Restricted stock units vest over three years

Vesting commencement date May 22, 2026 Equal parts vest on each anniversary of this date

Key Terms

Restricted stock units, vest, grant, award, or other acquisition, beneficially owns

4 terms

Restricted stock units financial

"Restricted stock units vest over 3 years with equal parts vesting..."

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.

vest financial

"Restricted stock units vest over 3 years with equal parts vesting..."

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

beneficially owns financial

"total_shares_following_transaction represents shares beneficially owned after the grant"

Beneficially owns means a person or entity enjoys the economic benefits and control of a security even if the legal title or registration is held in another name. Think of it like having the keys and profits from a car that is registered to a friend: you use it, benefit from it, and make decisions about it even though the official paperwork lists someone else. For investors, this matters because it reveals who truly controls shares, affects voting power, potential conflicts of interest, and regulatory disclosure obligations.

FAQ

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

What did UCTT insider Samuel Williams report in this Form 4?

Samuel Williams, SVP of the Services Business at Ultra Clean Holdings, reported receiving 5,567 shares of Common Stock as a grant. The award increased his directly held position to 16,436 shares and reflects equity-based compensation rather than an open-market stock purchase.

How many Ultra Clean (UCTT) shares did Samuel Williams acquire?

Samuel Williams acquired 5,567 shares of Ultra Clean Holdings Common Stock through a grant. These shares were awarded at a reported price of $0.00 per share, indicating a compensation-related equity award instead of a market transaction, and are subject to a multi-year vesting schedule.

What are Samuel Williams’ total UCTT holdings after this transaction?

After the reported grant, Samuel Williams beneficially owns 16,436 shares of Ultra Clean Holdings Common Stock directly. This total includes the 5,567 newly granted shares, reflecting his updated equity stake as disclosed in the Form 4 insider transaction report.

How do the UCTT restricted stock units for Samuel Williams vest?

The restricted stock units granted to Samuel Williams vest over three years. Equal portions vest on each anniversary of the vesting commencement date of May 22, 2026, so the award becomes fully vested only after three annual vesting events are completed.

Was cash paid for the UCTT shares reported by Samuel Williams?

No cash was paid for these shares; the transaction price per share is listed as $0.00. This indicates the 5,567 shares of Common Stock were received as a grant or award, forming part of Samuel Williams’ equity-based compensation rather than a cash-funded stock 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^*

Johnson Samuel Williams

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Services Business

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	05/22/2026		A		5,567(1)	A	$0	16,436	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 over 3 years with equal parts vesting on each anniversary of the vesting commencement date of May 22, 2026.

	/s/ Paul Y. Cho, as attorney-in-fact for Samuel Johnson	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)