{"cik":"0001275014","ticker":"UCTT","name":"Ultra Clean Holdings, Inc.","sic_code":"3674","sic_description":"Semiconductors & Related Devices","exchange":"Nasdaq","state_of_incorporation":"DE","fiscal_year_end":"1230","first_filing_date":"2026-05-08","last_filing_date":"2026-07-08","url":"/sec/cik-0001275014","insider_summary":{"total_transactions":77,"unique_insiders":4,"latest_transaction":"2026-07-02"},"recent_filings":[{"accession_number":"0000950103-26-015166","form_type":"4","form_type_family":"insider","doc_date":"2026-10-02","title":"4 — Ultra Clean Holdings, Inc. — 2026-10-02","url_slug":"/sec/cik-0001275014/4/0000950103-26-015166","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-015166-index.html"},{"accession_number":"0001628280-26-063977","form_type":"8-K","form_type_family":"current","doc_date":"2026-09-30","title":"8-K — Ultra Clean Holdings, Inc. — 2026-09-30","url_slug":"/sec/cik-0001275014/8-k/0001628280-26-063977","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0001628280-26-063977-index.html"},{"accession_number":"0000950103-26-013632","form_type":"4","form_type_family":"insider","doc_date":"2026-09-04","title":"4 — Ultra Clean Holdings, Inc. — 2026-09-04","url_slug":"/sec/cik-0001275014/4/0000950103-26-013632","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-013632-index.html"},{"accession_number":"0000950103-26-013631","form_type":"3","form_type_family":"insider","doc_date":"2026-09-04","title":"3 — Ultra Clean Holdings, Inc. — 2026-09-04","url_slug":"/sec/cik-0001275014/3/0000950103-26-013631","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-013631-index.html"},{"accession_number":"0000950103-26-013530","form_type":"4","form_type_family":"insider","doc_date":"2026-09-02","title":"4 — Ultra Clean Holdings, Inc. — 2026-09-02","url_slug":"/sec/cik-0001275014/4/0000950103-26-013530","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-013530-index.html"},{"accession_number":"0000950103-26-012379","form_type":"8-K","form_type_family":"current","doc_date":"2026-08-14","title":"8-K — Ultra Clean Holdings, Inc. — 2026-08-14","url_slug":"/sec/cik-0001275014/8-k/0000950103-26-012379","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-012379-index.html"},{"accession_number":"0000950103-26-012378","form_type":"424B5","form_type_family":"registration","doc_date":"2026-08-14","title":"424B5 — Ultra Clean Holdings, Inc. — 2026-08-14","url_slug":"/sec/cik-0001275014/424b5/0000950103-26-012378","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-012378-index.html"},{"accession_number":"0000914208-26-000313","form_type":"SCHEDULE 13G","form_type_family":"other","doc_date":"2026-08-13","title":"SCHEDULE 13G — Ultra Clean Holdings, Inc. — 2026-08-13","url_slug":"/sec/cik-0001275014/schedule-13g/0000914208-26-000313","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000914208-26-000313-index.html"},{"accession_number":"0001422849-26-000135","form_type":"SCHEDULE 13G","form_type_family":"other","doc_date":"2026-08-12","title":"SCHEDULE 13G — Ultra Clean Holdings, Inc. — 2026-08-12","url_slug":"/sec/cik-0001275014/schedule-13g/0001422849-26-000135","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0001422849-26-000135-index.html"},{"accession_number":"0001628280-26-054369","form_type":"8-K","form_type_family":"current","doc_date":"2026-08-06","title":"8-K — Ultra Clean Holdings, Inc. — 2026-08-06","url_slug":"/sec/cik-0001275014/8-k/0001628280-26-054369","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0001628280-26-054369-index.html"},{"accession_number":"0001628280-26-052540","form_type":"10-Q","form_type_family":"quarterly","doc_date":"2026-08-04","title":"10-Q — Ultra Clean Holdings, Inc. — 2026-08-04","url_slug":"/sec/cik-0001275014/10-q/0001628280-26-052540","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0001628280-26-052540-index.html"},{"accession_number":"0001628280-26-051853","form_type":"8-K","form_type_family":"current","doc_date":"2026-08-03","title":"8-K — Ultra Clean Holdings, Inc. — 2026-08-03","url_slug":"/sec/cik-0001275014/8-k/0001628280-26-051853","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0001628280-26-051853-index.html"},{"accession_number":"0002100119-26-001502","form_type":"SCHEDULE 13G","form_type_family":"other","doc_date":"2026-07-31","title":"SCHEDULE 13G — Ultra Clean Holdings, Inc. — 2026-07-31","url_slug":"/sec/cik-0001275014/schedule-13g/0002100119-26-001502","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0002100119-26-001502-index.html"},{"accession_number":"0000950103-26-010519","form_type":"S-8","form_type_family":"other","doc_date":"2026-07-10","title":"S-8 — Ultra Clean Holdings, Inc. — 2026-07-10","url_slug":"/sec/cik-0001275014/s-8/0000950103-26-010519","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-010519-index.html"},{"accession_number":"0001628280-26-047655","form_type":"8-K","form_type_family":"current","doc_date":"2026-07-08","title":"8-K — Ultra Clean Holdings, Inc. — 2026-07-08","url_slug":"/sec/cik-0001275014/8-k/0001628280-26-047655","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0001628280-26-047655-index.html"},{"accession_number":"0000950103-26-010375","form_type":"4","form_type_family":"insider","doc_date":"2026-07-07","title":"4 — Ultra Clean Holdings, Inc. — 2026-07-07","url_slug":"/sec/cik-0001275014/4/0000950103-26-010375","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-010375-index.html"},{"accession_number":"0001950047-26-006804","form_type":"144","form_type_family":"other","doc_date":"2026-07-02","title":"144 — Ultra Clean Holdings, Inc. — 2026-07-02","url_slug":"/sec/cik-0001275014/144/0001950047-26-006804","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0001950047-26-006804-index.html"},{"accession_number":"0000950103-26-009883","form_type":"4","form_type_family":"insider","doc_date":"2026-06-30","title":"4 — Ultra Clean Holdings, Inc. — 2026-06-30","url_slug":"/sec/cik-0001275014/4/0000950103-26-009883","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-009883-index.html"},{"accession_number":"0000950103-26-008737","form_type":"4","form_type_family":"insider","doc_date":"2026-06-09","title":"4 — Ultra Clean Holdings, Inc. — 2026-06-09","url_slug":"/sec/cik-0001275014/4/0000950103-26-008737","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-008737-index.html"},{"accession_number":"0000950103-26-008736","form_type":"4","form_type_family":"insider","doc_date":"2026-06-09","title":"4 — Ultra Clean Holdings, Inc. — 2026-06-09","url_slug":"/sec/cik-0001275014/4/0000950103-26-008736","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-008736-index.html"},{"accession_number":"0000950103-26-008671","form_type":"4","form_type_family":"insider","doc_date":"2026-06-08","title":"4 — Ultra Clean Holdings, Inc. — 2026-06-08","url_slug":"/sec/cik-0001275014/4/0000950103-26-008671","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-008671-index.html"},{"accession_number":"0000950103-26-008550","form_type":"4","form_type_family":"insider","doc_date":"2026-06-04","title":"4 — Ultra Clean Holdings, Inc. — 2026-06-04","url_slug":"/sec/cik-0001275014/4/0000950103-26-008550","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0000950103-26-008550-index.html"},{"accession_number":"0001950047-26-005639","form_type":"144","form_type_family":"other","doc_date":"2026-06-04","title":"144 — Ultra Clean Holdings, Inc. — 2026-06-04","url_slug":"/sec/cik-0001275014/144/0001950047-26-005639","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0001950047-26-005639-index.html"},{"accession_number":"0001950047-26-005637","form_type":"144","form_type_family":"other","doc_date":"2026-06-04","title":"144 — Ultra Clean Holdings, Inc. — 2026-06-04","url_slug":"/sec/cik-0001275014/144/0001950047-26-005637","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0001950047-26-005637-index.html"},{"accession_number":"0001950047-26-005533","form_type":"144","form_type_family":"other","doc_date":"2026-06-02","title":"144 — Ultra Clean Holdings, Inc. — 2026-06-02","url_slug":"/sec/cik-0001275014/144/0001950047-26-005533","edgar_url":"https://www.sec.gov/Archives/edgar/data/1275014/0001950047-26-005533-index.html"}],"related_endpoints":{"profile":"/sec/UCTT/profile","timeline":"/sec/UCTT/timeline","peers":"/sec/UCTT/peers","insider_pulse":"/sec/UCTT/insider-pulse","insider_summary":"/sec/UCTT/insider-summary","insider_transactions":"/sec/UCTT/insider-transactions","form144":"/sec/UCTT/form144","holdings_as_filer":"/sec/UCTT/holdings","financial_facts":"/sec/UCTT/financial-facts","derivatives":"/sec/UCTT/derivatives","officers":"/sec/UCTT/officers","insider_network":"/sec/UCTT/insider-network","risk_flags":"/sec/UCTT/risk-flags","filings":"/sec/UCTT/filings","cross_topic_dossier":"/api/v1/dossier?ticker=UCTT"}}