---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-020279"
form_type: "8-K"
ticker: "UCTT"
cik: "0001275014"
company_name: "Ultra Clean Holdings, Inc."
filed_at: "2025-04-28T23:59:59+00:00"
generated_at: "2026-05-23T04:46:35.521875+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Ultra Clean Holdings Q1 revenue $518.6M, net loss $0.5M; Q2 revenue guidance $475-525M

## Summary
- GAAP: Revenue $518.6M, down 8% sequentially; net loss $(0.5)M or $(0.11) diluted EPS.
- Non-GAAP net income $12.7M, $0.28 per diluted share; operating margin 5.2%.
- Products revenue $457.0M, Services $61.6M; total gross margin 16.2%.
- Q2 outlook: revenue $475-525M; GAAP diluted loss $(0.06)-$(0.26); non-GAAP EPS $0.17-$0.37.
- Interim CEO cites softening demand late in quarter amid uncertain business environment.

## SEC filing metadata
- accession: 0001628280-25-020279
- form_type: 8-K
- ticker: UCTT
- cik: 0001275014
- company_name: Ultra Clean Holdings, Inc.
- filed_at: 2025-04-28T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1275014/000162828025020279/0001628280-25-020279-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1275014/000162828025020279/uctt-20250428.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-020279
- JSON: https://secwatch.observer/filing/0001628280-25-020279.json
- Plain text: https://secwatch.observer/filing/0001628280-25-020279.txt

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