---
schema_version: "secwatch.filing_event.v1"
accession: "0001104657-26-000002"
form_type: "8-K"
ticker: "MTRN"
cik: "0001104657"
company_name: "MATERION Corp"
filed_at: "2026-01-23T23:59:59+00:00"
generated_at: "2026-05-16T08:21:15.727199+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Materion: prelim Q4 adj EPS $1.50-$1.55; takes $20-25M charge for clad strip quality issue

## Summary
- Preliminary Q4 2025 adj EPS guided $1.50-$1.55; full-year adj EPS $5.40-$5.45.
- Records a $20-25M charge related to a quality issue at large clad strip customer, excluded from non-GAAP.
- Issue resolved; production facilities back online, shipments resumed; no material impact on 2026 volume expected.
- Stronger-than-expected performance in Electronic Materials and Precision Optics segments.

## SEC filing metadata
- accession: 0001104657-26-000002
- form_type: 8-K
- ticker: MTRN
- cik: 0001104657
- company_name: MATERION Corp
- filed_at: 2026-01-23T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1104657/000110465726000002/0001104657-26-000002-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1104657/000110465726000002/mtrn-20260123.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104657-26-000002
- JSON: https://secwatch.observer/filing/0001104657-26-000002.json
- Plain text: https://secwatch.observer/filing/0001104657-26-000002.txt

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