0000950103-23-006770.txt : 20230502 0000950103-23-006770.hdr.sgml : 20230502 20230502192743 ACCESSION NUMBER: 0000950103-23-006770 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230428 FILED AS OF DATE: 20230502 DATE AS OF CHANGE: 20230502 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Cho Paul Yoonku CENTRAL INDEX KEY: 0001791106 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-50646 FILM NUMBER: 23881156 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] IRS NUMBER: 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 dp193277_4-cho.xml FORM 4 X0407 4 2023-04-28 0 0001275014 Ultra Clean Holdings, Inc. UCTT 0001791106 Cho Paul Yoonku C/O ULTRA CLEAN HOLDINGS, INC. 26462 CORPORATE AVENUE HAYWARD CA 94545 0 1 0 0 General Counsel and Secretary 0 Common Stock 2023-04-28 4 A 0 9330 0 A 24436 D Common Stock 2023-04-30 4 F 0 662 28.54 D 23774 D Common Stock 2023-04-30 4 F 0 1988 28.54 D 21786 D Common Stock 2023-04-30 4 F 0 588 28.54 D 21198 D Common Stock 2023-04-30 4 F 0 235 28.54 D 20963 D Common Stock 2023-04-30 4 F 0 951 28.54 D 20012 D Restricted stock units vest over 3 years with equal parts vesting on each anniversary of the vesting commencement date of April 28, 2023. Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested. /s/ Paul Yoonku Cho 2023-05-02