{"schema_version":"secwatch.filing_event.v1","accession":"0001104657-25-000207","form_type":"8-K","ticker":"MTRN","cik":"0001104657","company_name":"MATERION Corp","filed_at":"2025-12-11T23:59:59+00:00","discovered_at":"2026-05-14T18:02:38.804019+00:00","generated_at":"2026-05-16T13:27:59.311003+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Materion appoints Thomas Edman to Board; Reddy to retire at 2026 meeting","bullets":["N. Mohan Reddy will retire from Materion Board at the 2026 annual meeting after 25+ years of service.","Board increased to ten members; appointed Thomas T. Edman, former CEO of TTM Technologies, effective Jan 21, 2026.","Edman will serve on Audit/Risk and Nominating/Governance/Corporate Responsibility Committees.","Edman receives standard non-employee director compensation; annual RSU increased to $145,000; initial equity award eliminated."],"urls":{"canonical":"https://secwatch.observer/filing/0001104657-25-000207","json":"https://secwatch.observer/filing/0001104657-25-000207.json","markdown":"https://secwatch.observer/filing/0001104657-25-000207.md","text":"https://secwatch.observer/filing/0001104657-25-000207.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1104657/000110465725000207/0001104657-25-000207-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1104657/000110465725000207/mtrn-20251209.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T13:27:59.311003+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}