{"schema_version":"secwatch.filing_event.v1","accession":"0000866273-26-000006","form_type":"8-K","ticker":"MTRX","cik":"0000866273","company_name":"MATRIX SERVICE CO","filed_at":"2026-01-06T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.853826+00:00","generated_at":"2026-05-16T11:36:15.910301+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Matrix Service subsidiary President Douglas Montalbano resigns effective Jan 16, 2026","bullets":["Douglas J. Montalbano resigns as President of Matrix North American Construction (Matrix NAC), effective January 16, 2026.","Resignation not related to any dispute with Matrix NAC, its clients, or the Company.","Interim replacement is a current Matrix NAC employee/officer, reporting to Shawn Payne, President Engineering & Construction of Matrix Service."],"urls":{"canonical":"https://secwatch.observer/filing/0000866273-26-000006","json":"https://secwatch.observer/filing/0000866273-26-000006.json","markdown":"https://secwatch.observer/filing/0000866273-26-000006.md","text":"https://secwatch.observer/filing/0000866273-26-000006.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/866273/000086627326000006/0000866273-26-000006-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/866273/000086627326000006/mtrx-20251230.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T11:36:15.910301+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"}