{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-278509","form_type":"8-K","ticker":"ECVT","cik":"0001708035","company_name":"Ecovyst Inc.","filed_at":"2022-11-07T23:59:59+00:00","discovered_at":"2026-05-14T18:03:51.781472+00:00","generated_at":"2026-06-22T05:35:53.100203+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"negative","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Ecovyst President Thomas Schneberger resigns effective Nov. 29, 2022","bullets":["Thomas Schneberger, President of Ecovyst Inc., provided notice of resignation on Nov. 3, 2022.","Resignation effective November 29, 2022; no successor named in the filing.","No reason for departure disclosed; no related compensatory arrangements described."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-278509","json":"https://secwatch.observer/filing/0001193125-22-278509.json","markdown":"https://secwatch.observer/filing/0001193125-22-278509.md","text":"https://secwatch.observer/filing/0001193125-22-278509.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1708035/000119312522278509/0001193125-22-278509-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1708035/000119312522278509/d401807d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-22T05:35:53.100203+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":"893f31da1f","claim":"Thomas Schneberger resigned as President at Ecovyst Inc..","evidence_excerpt":"On November 3, 2022, Thomas Schneberger, President of Ecovyst Inc. (“the Company”), provided notice of his resignation from the Company, effective November 29, 2022.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1708035/000119312522278509/0001193125-22-278509-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"President"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}