0000354204-25-001031.txt : 20250715 0000354204-25-001031.hdr.sgml : 20250715 20250715160317 ACCESSION NUMBER: 0000354204-25-001031 CONFORMED SUBMISSION TYPE: SCHEDULE 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20250715 DATE AS OF CHANGE: 20250715 SUBJECT COMPANY: 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 FILING VALUES: FORM TYPE: SCHEDULE 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-79796 FILM NUMBER: 251124770 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 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: DIMENSIONAL FUND ADVISORS LP CENTRAL INDEX KEY: 0000354204 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] ORGANIZATION NAME: EIN: 222370029 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SCHEDULE 13G/A BUSINESS ADDRESS: STREET 1: 6300 BEE CAVE ROAD STREET 2: BUILDING ONE CITY: AUSTIN STATE: TX ZIP: 78746 BUSINESS PHONE: (512) 306-7400 MAIL ADDRESS: STREET 1: 6300 BEE CAVE ROAD STREET 2: BUILDING ONE CITY: AUSTIN STATE: TX ZIP: 78746 FORMER COMPANY: FORMER CONFORMED NAME: DIMENSIONAL FUND ADVISORS INC DATE OF NAME CHANGE: 19920929 SCHEDULE 13G/A 1 primary_doc.xml SCHEDULE 13G/A 0001258897-17-001116 0000354204 XXXXXXXX LIVE 3 Common Stock 06/30/2025 0001275014 Ultra Clean Holdings Inc 90385V107 26462 Corporate Avenue Hayward X1 94545 Rule 13d-1(b) Dimensional Fund Advisors LP b X1 2078715 0 2139957 0 2139957.00 4.7 IA Ultra Clean Holdings Inc 26462 Corporate Avenue, Hayward, CA 94545 Dimensional Fund Advisors LP 6300 Bee Cave Road, Building One, Austin, TX 78746 Delaware Limited Partnership N IA 2,139,957 ** see Note 1 ** ** Note 1 ** Dimensional Fund Advisors LP, an investment adviser registered under Section 203 of the Investment Advisors Act of 1940, furnishes investment advice to four investment companies registered under the Investment Company Act of 1940, and serves as investment manager or sub-adviser to certain other commingled funds, group trusts and separate accounts (such investment companies, trusts and accounts, collectively referred to as the "Funds"). In certain cases, subsidiaries of Dimensional Fund Advisors LP may act as an adviser or sub-adviser to certain Funds. In its role as investment advisor, sub-adviser and/or manager, Dimensional Fund Advisors LP or its subsidiaries (collectively, "Dimensional") may possess voting and/or investment power over the securities of the Issuer that are owned by the Funds, and may be deemed to be the beneficial owner of the shares of the Issuer held by the Funds. However, all securities reported in this schedule are owned by the Funds. Dimensional disclaims beneficial ownership of such securities. In addition, the filing of this Schedule 13G shall not be construed as an admission that the reporting person or any of its affiliates is the beneficial owner of any securities covered by this Schedule 13G for any other purposes than Section 13(d) of the Securities Exchange Act of 1934. 4.7 2,078,715** see Note 1 ** 0 2,139,957** see Note 1 ** 0 Y N The Funds described in Note 1 above have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the securities held in their respective accounts. To the knowledge of Dimensional, the interest of any one such Fund does not exceed 5% of the class of securities. Dimensional Fund Advisors LP disclaims beneficial ownership of all such securities. Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Dimensional Fund Advisors LP Selwyn Notelovitz 07/15/2025