---
schema_version: "secwatch.filing_event.v1"
accession: "0001104657-21-000094"
form_type: "8-K"
ticker: "MTRN"
cik: "0001104657"
company_name: "MATERION Corp"
filed_at: "2021-09-20T23:59:59+00:00"
generated_at: "2026-06-29T02:31:44.611463+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Materion to acquire H.C. Starck's electronic materials business for $380M in cash

## Summary
- Acquiring HCS-Electronic Materials for $380M in cash; expected to close Q4 2021, subject to regulatory approval.
- Target generates ~$145M revenue and ~$29M adjusted EBITDA (~20% margin) in 2021.
- Deal is immediately accretive to Materion's adjusted EBITDA margin by ~100 bps and adjusted EPS.
- Acquisition financed through new term loan and revolver; pro forma net debt/EBITDA ~2.9x.
- Adds tantalum and niobium sputtering targets for semiconductor, industrial, and aerospace & defense markets.

## SEC filing metadata
- accession: 0001104657-21-000094
- form_type: 8-K
- ticker: MTRN
- cik: 0001104657
- company_name: MATERION Corp
- filed_at: 2021-09-20T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1104657/000110465721000094/0001104657-21-000094-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1104657/000110465721000094/mtrn-20210919.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104657-21-000094
- JSON: https://secwatch.observer/filing/0001104657-21-000094.json
- Plain text: https://secwatch.observer/filing/0001104657-21-000094.txt

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