{"schema_version":"secwatch.filing_event.v1","accession":"0001104657-22-000088","form_type":"8-K","ticker":"MTRN","cik":"0001104657","company_name":"MATERION Corp","filed_at":"2022-05-09T23:59:59+00:00","discovered_at":"2026-05-14T18:03:59.767690+00:00","generated_at":"2026-06-25T22:13:16.917172+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 John Zaranec as Chief Accounting Officer effective May 4","bullets":["John M. Zaranec named CAO, reporting to CFO Shelly M. Chadwick, who previously held the role.","Zaranec, 41, joined Materion as VP Corporate Controller & IR in April 2021.","Prior roles include Director Global Accounting at Timken and accounting leadership at A. Schulman.","Compensation includes annual base salary, annual/long-term incentive plans, and benefit programs.","Appointment effective May 4, 2022; separation of CAO and CFO duties."],"urls":{"canonical":"https://secwatch.observer/filing/0001104657-22-000088","json":"https://secwatch.observer/filing/0001104657-22-000088.json","markdown":"https://secwatch.observer/filing/0001104657-22-000088.md","text":"https://secwatch.observer/filing/0001104657-22-000088.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1104657/000110465722000088/0001104657-22-000088-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1104657/000110465722000088/mtrn-20220504.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-25T22:13:16.917172+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":"d77f412b7a","claim":"John M. Zaranec was appointed as Chief Accounting Officer at MATERION Corp.","evidence_excerpt":"On May 9, 2022, Materion Corporation (the “Company”) announced that John M. Zaranec was appointed as the Company’s Chief Accounting Officer, effective May 4, 2022","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1104657/000110465722000088/0001104657-22-000088-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"}