0000950103-25-005452.txt : 20250429 0000950103-25-005452.hdr.sgml : 20250429 20250429210752 ACCESSION NUMBER: 0000950103-25-005452 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250425 FILED AS OF DATE: 20250429 DATE AS OF CHANGE: 20250429 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Bentinck Bill CENTRAL INDEX KEY: 0001778203 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-50646 FILM NUMBER: 25890496 MAIL ADDRESS: STREET 1: C/O ULTRA CLEAN HOLDINGS, INC. STREET 2: 26462 CORPORATE AVE CITY: HAYWARD STATE: CA ZIP: 94545 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Ultra Clean Holdings, Inc. CENTRAL INDEX KEY: 0001275014 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] ORGANIZATION NAME: 04 Manufacturing EIN: 611430858 STATE OF INCORPORATION: DE FISCAL YEAR END: 1230 BUSINESS ADDRESS: STREET 1: 26462 CORPORATE AVENUE CITY: HAYWARD STATE: CA ZIP: 94545 BUSINESS PHONE: (510) 576-4400 MAIL ADDRESS: STREET 1: 26462 CORPORATE AVENUE CITY: HAYWARD STATE: CA ZIP: 94545 FORMER COMPANY: FORMER CONFORMED NAME: ULTRA CLEAN HOLDINGS INC DATE OF NAME CHANGE: 20031231 4 1 dp228262_4-bentinck.xml FORM 4 X0508 4 2025-04-25 0 0001275014 Ultra Clean Holdings, Inc. UCTT 0001778203 Bentinck Bill C/O ULTRA CLEAN HOLDINGS, INC. 26462 CORPORATE AVE HAYWARD CA 94545 0 1 0 0 President, Services Business 0 Common Stock 2025-04-25 4 A 0 13915 0 A 74880 D Restricted stock units vest over 3 years with equal parts vesting on each anniversary of the vesting commencement date of April 25, 2025. Represents shares currently held and includes shares previously misreported due to clerical error. /s/ Paul Y. Cho, as attorney-in-fact for Bill Bentinck 2025-04-29