{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-131364","form_type":"8-K","ticker":"ECVT","cik":"0001708035","company_name":"Ecovyst Inc.","filed_at":"2024-05-06T23:59:59+00:00","discovered_at":"2026-05-14T18:03:19.680738+00:00","generated_at":"2026-06-02T22:12:19.363551+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"Director Robert Coxon resigns from Ecovyst Board for health reasons effective May 8, 2024","bullets":["Robert Coxon notified Ecovyst on May 3, 2024 of his resignation from the Board.","Resignation effective 5:00 p.m. ET on May 8, 2024; Coxon had served since 2007.","Resignation is due to personal health reasons, not any disagreement with the company.","Board size to decrease from nine to eight members upon effectiveness of resignation."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-131364","json":"https://secwatch.observer/filing/0001193125-24-131364.json","markdown":"https://secwatch.observer/filing/0001193125-24-131364.md","text":"https://secwatch.observer/filing/0001193125-24-131364.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1708035/000119312524131364/0001193125-24-131364-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1708035/000119312524131364/d810587d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-02T22:12:19.363551+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":"1d2046fa14","claim":"Robert Coxon departed as Director at Ecovyst Inc..","evidence_excerpt":"On May 3, 2024, Robert Coxon notified Ecovyst Inc. (the “Company”) that he would be resigning from the Company’s Board of Directors (the “Board”), effective 5:00 p.m. Eastern Time on May 8, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1708035/000119312524131364/0001193125-24-131364-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigning"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}