{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-283808","form_type":"8-K","ticker":"ECVT","cik":"0001708035","company_name":"Ecovyst Inc.","filed_at":"2023-11-28T23:59:59+00:00","discovered_at":"2026-05-14T18:03:30.124289+00:00","generated_at":"2026-06-07T21:05:07.080594+00:00","sec_items":["7.01","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"low","headline":"Ecovyst announces Investor Day for Nov 28, 2023; no material updates disclosed in filing","bullets":["Filing furnished presentation for Investor Day, but only legal disclaimer text provided.","No specific financial guidance, strategic plans, or operational metrics in the filed exhibit.","Investor Day scheduled for November 28, 2023; presentation may contain forward-looking information.","Confidence low due to lack of substantive content in the exhibit appended to the filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-283808","json":"https://secwatch.observer/filing/0001193125-23-283808.json","markdown":"https://secwatch.observer/filing/0001193125-23-283808.md","text":"https://secwatch.observer/filing/0001193125-23-283808.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1708035/000119312523283808/0001193125-23-283808-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1708035/000119312523283808/d595252d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T21:05:07.080594+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"}