---
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"
generated_at: "2026-10-12T14:05:18.194267+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Ultra Clean Holdings appoints Alexander Davern to board effective September 28, 2026

## Summary
- 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.

## SEC filing metadata
- 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
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 9.01
- 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

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-063977
- JSON: https://secwatch.observer/filing/0001628280-26-063977.json
- Plain text: https://secwatch.observer/filing/0001628280-26-063977.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.