0000950103-23-007564.txt : 20230519 0000950103-23-007564.hdr.sgml : 20230519 20230519215154 ACCESSION NUMBER: 0000950103-23-007564 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230517 FILED AS OF DATE: 20230519 DATE AS OF CHANGE: 20230519 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MADDOCK ERNEST E CENTRAL INDEX KEY: 0001227050 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-50646 FILM NUMBER: 23942277 MAIL ADDRESS: STREET 1: LAM RESEARCH STREET 2: 4650 CUSHING PARKWAY CITY: FREMONT STATE: CA ZIP: 94538 FORMER NAME: FORMER CONFORMED NAME: MADDOCK ERNIE DATE OF NAME CHANGE: 20030411 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 dp194057_4-maddock.xml FORM 4 X0407 4 2023-05-17 0 0001275014 Ultra Clean Holdings, Inc. UCTT 0001227050 MADDOCK ERNEST E ULTRA CLEAN HOLDINGS, INC. 26462 CORPORATE AVE HAYWARD CA 94545 1 0 0 0 0 Common Stock 2023-05-17 4 A 0 5296 0 A 34396 D Restricted stock award vests 100% the earlier of the day before the next annual stockholder meeting or 1 year from the date of grant. /s/ Paul Y. Cho, as attorney-in-fact for Ernest E. Maddock 2023-05-19