0000950103-26-007117.txt : 20260512 0000950103-26-007117.hdr.sgml : 20260512 20260512191407 ACCESSION NUMBER: 0000950103-26-007117 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20260508 FILED AS OF DATE: 20260512 DATE AS OF CHANGE: 20260512 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Cho Paul Yoonku CENTRAL INDEX KEY: 0001791106 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-50646 FILM NUMBER: 26970351 MAIL ADDRESS: STREET 1: C/O ULTRA CLEAN HOLDINGS, INC. STREET 2: 26462 CORPORATE AVENUE 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 ownership.xml FORM 4 X0609 4 2026-05-08 0 0001275014 Ultra Clean Holdings, Inc. UCTT 0001791106 Cho Paul Yoonku false ULTRA CLEAN HOLDINGS, INC. 26462 CORPORATE AVENUE HAYWARD CA 94545 0 1 0 0 General Counsel and Secretary 0 Common Stock 2026-05-08 4 S 0 2000 86.8901 D 15844 D /s/ Paul Y. Cho 2026-05-12