UCTT Form 144 lists restricted-stock sale notices

Morgan Stanley Smith Barney LLC submitted a Form 144 notice listing proposed sales of restricted common stock.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 notice listing proposed sales of restricted common stock. The table shows 7,326 shares dated 04/30/2025 and 4,577 shares dated 04/29/2025. The filing lists a record line with $896,467.30 and a date of 05/01/2026.

Key Figures

Restricted shares (04/30/2025): 7,326 shares Restricted shares (04/29/2025): 4,577 shares Listed monetary line: $896,467.30 +1 more

4 metrics

Restricted shares (04/30/2025) 7,326 shares Listed under 'Securities To Be Sold' with date <date>04/30/2025</date>

Restricted shares (04/29/2025) 4,577 shares Listed under 'Securities To Be Sold' with date <date>04/29/2025</date>

Listed monetary line $896,467.30 Value shown on the same header row associated with <date>05/01/2026</date>

Filing/record date 05/01/2026 Date displayed on the header row next to exchange 'NASDAQ'

Key Terms

Restricted Stock, Form 144, NASDAQ

3 terms

Restricted Stock financial

"Common | 04/30/2025 | Restricted Stock | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

NASDAQ market

"05/01/2026 | NASDAQ"

The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

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

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Accepted by SEC EDGAR 05/01/2026 - 04:02 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001927266
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ULTRA CLEAN HOLDINGS, INC.
SEC File Number	000-50646
Address of Issuer	26462 Corporate Avenue Hayward CALIFORNIA 94545
Phone	(510) 576-4400
Name of Person for Whose Account the Securities are To Be Sold	CHRISTOPHER SCOTT COOK
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	11903	896467.30	44828352	05/01/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	04/30/2025	Restricted Stock	Issuer			7326	04/30/2025	Not Applicable
Common	04/29/2025	Restricted Stock	Issuer			4577	04/29/2025	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	05/01/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Christopher Scott Cook
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)