Ultra Clean Holdings, Inc. SEC filings UCTT

Ultra Clean Holdings, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Apr 25, 2014. Its latest annual report, Form ARS, was filed on Apr 27, 2026 for the period ended Dec 26, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 28, 2026, covering the quarter ended Sep 25, 2026. The most recent current report (Form 8-K) was filed on Oct 27, 2026 (results of operations). The company's fiscal year ends on December 30.

Form Description Filed Period
DEF 14A Proxy statement Apr 27, 2026 May 22, 2026
DEF 14A Proxy statement Apr 28, 2025 May 21, 2025
DEF 14A Proxy statement Apr 26, 2024 May 22, 2024
DEFA14A Additional proxy material May 1, 2023 —
DEF 14A Proxy statement Apr 21, 2023 —
DEF 14A Proxy statement Apr 25, 2022 May 19, 2022
DEF 14A Proxy statement Apr 26, 2021 May 20, 2021
DEFA14A Additional proxy material May 15, 2020 —
DEF 14A Proxy statement Apr 27, 2020 Jun 2, 2020
DEF 14A Proxy statement Apr 24, 2019 May 23, 2019
DEF 14A Proxy statement Apr 19, 2018 May 15, 2018
DEF 14A Proxy statement Apr 21, 2017 May 24, 2017
DEF 14A Proxy statement Apr 22, 2016 May 26, 2016
DEF 14A Proxy statement Apr 27, 2015 Jun 4, 2015

Showing 14 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

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Company profile

Industry
Semiconductors & Related Devices (SIC 3674)
Listed as
UCTT (Nasdaq)
Fiscal year ends
December 30
Incorporated in
DE
Headquarters
Hayward, CA
SEC filer status
Large accelerated filer
SEC CIK
1275014
Former names
ULTRA CLEAN HOLDINGS INC (until Feb 17, 2015)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.