{"schema_version":"secwatch.filing_event.v1","accession":"0001436126-25-000013","form_type":"8-K","ticker":"MG","cik":"0001436126","company_name":"Mistras Group, Inc.","filed_at":"2025-02-07T23:59:59+00:00","discovered_at":"2026-05-14T18:03:03.622449+00:00","generated_at":"2026-05-27T00:53:10.209483+00:00","sec_items":["7.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"MISTRAS founder Dr. Sotirios Vahaviolos passes away; company affirms continuity","bullets":["Dr. Sotirios Vahaviolos, founder and Chairman Emeritus, passed away on February 6, 2025.","He founded MISTRAS in 1978, building it into a global NDT leader with over 5,000 employees.","Board states no changes to management or strategic direction; succession planned for years.","Executive Chairman Manny Stamatakis expressed gratitude for Vahaviolos' legacy and contributions."],"urls":{"canonical":"https://secwatch.observer/filing/0001436126-25-000013","json":"https://secwatch.observer/filing/0001436126-25-000013.json","markdown":"https://secwatch.observer/filing/0001436126-25-000013.md","text":"https://secwatch.observer/filing/0001436126-25-000013.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1436126/000143612625000013/0001436126-25-000013-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1436126/000143612625000013/sjv8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-27T00:53:10.209483+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"}