---
schema_version: "secwatch.filing_event.v1"
accession: "0001104657-25-000087"
form_type: "8-K"
ticker: "MTRN"
cik: "0001104657"
company_name: "MATERION Corp"
filed_at: "2025-05-22T23:59:59+00:00"
generated_at: "2026-05-20T17:24:22.928840+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Materion appoints Melissa Fashinpaur as Chief Accounting Officer effective June 1

## Summary
- Melissa A. Fashinpaur appointed CAO effective June 1, 2025, reporting to CFO Shelly Chadwick.
- Fashinpaur previously served as VP Internal Audit since Aug 2022; role expanded to include Compliance in 2023.
- Prior to Materion, she spent 20+ years at Ernst & Young, most recently as Principal in Technology Risk practice.
- Fashinpaur succeeds Shelly Chadwick as principal accounting officer; Chadwick remains CFO.

## SEC filing metadata
- accession: 0001104657-25-000087
- form_type: 8-K
- ticker: MTRN
- cik: 0001104657
- company_name: MATERION Corp
- filed_at: 2025-05-22T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1104657/000110465725000087/0001104657-25-000087-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1104657/000110465725000087/mtrn-20250520.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104657-25-000087
- JSON: https://secwatch.observer/filing/0001104657-25-000087.json
- Plain text: https://secwatch.observer/filing/0001104657-25-000087.txt

## Key facts
- Executive change
  Melissa A. Fashinpaur was appointed as Chief Accounting Officer at MATERION Corp.
  - Action: appointed
  - Role: Chief Accounting Officer
  source text: On May 20, 2025, Melissa A. Fashinpaur was appointed as the Chief Accounting Officer of Materion Corporation (the “Company”), effective June 1, 2025, reporting to Shelly M. Chadwick, the Company's Chief Financial Officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1104657/000110465725000087/0001104657-25-000087-index.htm

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