{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-134730","form_type":"8-K/A","ticker":"ECVT","cik":"0001708035","company_name":"Ecovyst Inc.","filed_at":"2024-05-09T23:59:59+00:00","discovered_at":"2026-05-14T18:03:19.680346+00:00","generated_at":"2026-06-02T06:27:59.455635+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Ecovyst appoints director Sarah Lorance to Audit Committee","bullets":["Amendment to Feb 28, 2024 8-K adds Audit Committee assignment for Sarah Lorance.","Appointment effective May 8, 2024, as reported in this Form 8-K/A.","No other changes to Board composition or committee memberships disclosed."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-134730","json":"https://secwatch.observer/filing/0001193125-24-134730.json","markdown":"https://secwatch.observer/filing/0001193125-24-134730.md","text":"https://secwatch.observer/filing/0001193125-24-134730.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1708035/000119312524134730/0001193125-24-134730-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1708035/000119312524134730/d798371d8ka.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-02T06:27:59.455635+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"}