{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-26-063977","form_type":"8-K","ticker":"UCTT","cik":"0001275014","company_name":"Ultra Clean Holdings, Inc.","filed_at":"2026-09-30T20:14:44+00:00","discovered_at":"2026-09-30T20:16:00.199545+00:00","generated_at":"2026-10-12T14:05:18.194267+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Ultra Clean Holdings appoints Alexander Davern to board effective September 28, 2026","bullets":["Davern, 60, spent 1994-2020 at National Instruments, serving as CEO 2017-2020, COO 2010-2016 and CFO 1998-2010.","He was a National Instruments director through its 2023 acquisition by Emerson Electric; he now serves on boards of Cirrus Logic, Computer Modelling Group and Spectris.","Davern will be paid under Ultra Clean's non-employee director compensation policy and is expected to sign the company's standard indemnification agreement.","No arrangements or understandings with other persons were cited, and no Item 404(a) related-party transaction was disclosed.","CEO James Xiao said the appointment strengthens board strategic insight as Ultra Clean executes UCT 3.0."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-26-063977","json":"https://secwatch.observer/filing/0001628280-26-063977.json","markdown":"https://secwatch.observer/filing/0001628280-26-063977.md","text":"https://secwatch.observer/filing/0001628280-26-063977.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1275014/000162828026063977/0001628280-26-063977-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1275014/000162828026063977/uctt-20260928.htm"},"model":{"generated_by":"deepseek-v4.1-flash:cloud@v2","generated_at":"2026-10-12T14:05:18.194267+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}