{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-24-009823","form_type":"8-K","ticker":"RYZ","cik":"0001481582","company_name":"Ryerson Holding Corp","filed_at":"2024-02-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:24.296434+00:00","generated_at":"2026-06-06T10:56:01.610460+00:00","sec_items":["8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Ryerson appoints Stephen P. Larson as Chair of the Board","bullets":["Stephen P. Larson appointed Chair of the Board effective January 31, 2024.","Mr. Larson has served as a director of Ryerson since 2014.","Prior to this appointment, the Company did not have a Chair of the Board."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-24-009823","json":"https://secwatch.observer/filing/0000950170-24-009823.json","markdown":"https://secwatch.observer/filing/0000950170-24-009823.md","text":"https://secwatch.observer/filing/0000950170-24-009823.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1481582/000095017024009823/0000950170-24-009823-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1481582/000095017024009823/ryi-20240201.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-06T10:56:01.610460+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"}