{"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","discovered_at":"2026-05-14T18:02:47.533666+00:00","generated_at":"2026-05-20T17:24:22.928840+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Materion appoints Melissa Fashinpaur as Chief Accounting Officer effective June 1","bullets":["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."],"urls":{"canonical":"https://secwatch.observer/filing/0001104657-25-000087","json":"https://secwatch.observer/filing/0001104657-25-000087.json","markdown":"https://secwatch.observer/filing/0001104657-25-000087.md","text":"https://secwatch.observer/filing/0001104657-25-000087.txt","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"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-20T17:24:22.928840+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"13c280c760","claim":"Melissa A. Fashinpaur was appointed as Chief Accounting Officer at MATERION Corp.","evidence_excerpt":"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_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1104657/000110465725000087/0001104657-25-000087-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Accounting Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}