---
schema_version: "secwatch.filing_event.v1"
accession: "0000950103-26-003139"
form_type: "8-K"
ticker: "UCTT"
cik: "0001275014"
company_name: "Ultra Clean Holdings, Inc."
filed_at: "2026-03-03T23:59:59+00:00"
generated_at: "2026-05-15T22:01:11.005411+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Ultra Clean issues $600M 0% convertible notes due 2031; enters capped call transactions

## Summary
- Issued $600M principal of 0.00% Convertible Senior Notes due 2031; initial conversion price ~$84.75 per share.
- Initial purchasers fully exercised option for additional $75M notes; total issuance includes $75M from option exercise.
- Entered capped call transactions costing $25.1M to reduce dilution; cap price $104.0725, premium 75% over stock price.
- Notes mature March 15, 2031; no regular interest; convertible at holder's option after December 16, 2030.
- Conversion rate initially 11.8001 shares per $1,000 principal; convertible into cash/shares at company's election.

## SEC filing metadata
- accession: 0000950103-26-003139
- form_type: 8-K
- ticker: UCTT
- cik: 0001275014
- company_name: Ultra Clean Holdings, Inc.
- filed_at: 2026-03-03T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1275014/000095010326003139/0000950103-26-003139-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1275014/000095010326003139/dp242585_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950103-26-003139
- JSON: https://secwatch.observer/filing/0000950103-26-003139.json
- Plain text: https://secwatch.observer/filing/0000950103-26-003139.txt

## Source-grounded claims
- claim_id: fa9fffaf973423b94ef88f9467c73dc28984bfc4
  claim: Ultra Clean Holdings, Inc. incurred senior notes of $600,000,000 principal amount with U.S. Bank Trust Company, National Association, as trustee at 0.00% maturing March 15, 2031.
  evidence_excerpt: On March 3, 2026, Ultra Clean Holdings, Inc. (the " Company ") issued $600,000,000 principal amount of its 0.00% Convertible Senior Notes due 2031
  evidence_url: https://www.sec.gov/Archives/edgar/data/1275014/000095010326003139/0000950103-26-003139-index.htm
- claim_id: f81e5bf821263d759ccfb960dfb14b37b517d7b9
  claim: Ultra Clean Holdings, Inc. entered into Indenture with U.S. Bank Trust Company, National Association valued at $600,000,000 principal amount (effective 2026-03-03).
  evidence_excerpt: On March 3, 2026, Ultra Clean Holdings, Inc. (the “ Company ”) issued $600,000,000 principal amount of its 0.00% Convertible Senior Notes due 2031 (the “ Notes ”). The Notes were issued pursuant to, and are governed by, an indenture (the “ Indenture ”), dated as of March 3, 2026, between the Company and U.S. Bank Trust Company, National Association, as trustee (the “ Trustee ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1275014/000095010326003139/0000950103-26-003139-index.htm

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