---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-003224"
form_type: "8-K"
ticker: "UCTT"
cik: "0001275014"
company_name: "Ultra Clean Holdings, Inc."
filed_at: "2025-01-31T23:59:59+00:00"
generated_at: "2026-05-27T04:35:38.667269+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Ultra Clean appoints Joanne Solomon to Board of Directors effective Feb 3, 2025

## Summary
- Ms. Solomon, 59, served as CFO at Maxeon Solar, Katerra, and Amkor Technology (2007-2016).
- She brings 35+ years of finance/tech leadership; currently a Viavi Solutions board member since 2022.
- Compensation follows company's non-employee director policy (annual equity award + cash retainer).
- Standard indemnification agreement to be entered with the company.

## SEC filing metadata
- accession: 0001628280-25-003224
- form_type: 8-K
- ticker: UCTT
- cik: 0001275014
- company_name: Ultra Clean Holdings, Inc.
- filed_at: 2025-01-31T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1275014/000162828025003224/0001628280-25-003224-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1275014/000162828025003224/uctt-20250130.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-003224
- JSON: https://secwatch.observer/filing/0001628280-25-003224.json
- Plain text: https://secwatch.observer/filing/0001628280-25-003224.txt

## Key facts
- Executive change
  Joanne Solomon was appointed as member of the Board at Ultra Clean Holdings, Inc..
  - Action: appointed
  - Role: member of the Board
  source text: On January 29, 2025, the Board of Directors (the “Board”) of Ultra Clean Holdings, Inc. (the “Company”) appointed Joanne Solomon to serve as a member of the Board of the Company, effective February 3, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1275014/000162828025003224/0001628280-25-003224-index.htm

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