{"schema_version":"secwatch.filing_event.v1","accession":"0000350894-25-000126","form_type":"8-K","ticker":"SEIC","cik":"0000350894","company_name":"SEI INVESTMENTS CO","filed_at":"2025-12-17T23:59:59+00:00","discovered_at":"2026-05-14T18:02:41.733590+00:00","generated_at":"2026-05-16T12:58:19.080922+00:00","sec_items":["5.02","8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"SEI founder West resigns from board; Guarino named non-executive chairman; $0.52 dividend","bullets":["Founder Alfred P. West Jr. resigns as director and officer effective Jan 1, 2026; to serve as non-voting Chairman Emeritus.","Independent director Carl Guarino appointed non-executive Chairman of the Board, effective upon West's resignation.","Board size reduced from nine to eight members effective Jan 1, 2026.","Dividend of $0.52/share declared; record date Dec 29, 2025, payment date Jan 12, 2026."],"urls":{"canonical":"https://secwatch.observer/filing/0000350894-25-000126","json":"https://secwatch.observer/filing/0000350894-25-000126.json","markdown":"https://secwatch.observer/filing/0000350894-25-000126.md","text":"https://secwatch.observer/filing/0000350894-25-000126.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/350894/000035089425000126/0000350894-25-000126-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/350894/000035089425000126/seic-20251212.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T12:58:19.080922+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"}