{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-23-126540","form_type":"8-K","ticker":"AEE","cik":"0001002910","company_name":"AMEREN CORP","filed_at":"2023-12-18T23:59:59+00:00","discovered_at":"2026-05-14T18:03:27.788330+00:00","generated_at":"2026-06-07T11:04:27.323995+00:00","sec_items":["8.01"],"event_type":"regulatory","sentiment":"negative","materiality_score":0.78,"calibrated_materiality_score":0.78,"confidence":"high","headline":"ICC rejects Ameren Illinois grid plan; approves $142M revenue increase vs $444M requested","bullets":["ICC rejected Ameren Illinois' 5-year grid plan and adopted alternative rate-setting methodology through 2027.","Approved cumulative revenue increase of $142M (corrected) vs $444M requested; ROE set at 8.72% with 50% equity.","Rate base frozen at $3.872B (2022 year-end) until revised grid plan approved; 2023 rate base estimate $4.3B.","Ameren Illinois may cut capex and opex; will seek rehearing and may appeal; reconciliation cap set at 105%.","Electric rates effective Jan 1, 2024; existing riders and revenue decoupling remain in place."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-23-126540","json":"https://secwatch.observer/filing/0001104659-23-126540.json","markdown":"https://secwatch.observer/filing/0001104659-23-126540.md","text":"https://secwatch.observer/filing/0001104659-23-126540.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1002910/000110465923126540/0001104659-23-126540-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/18654/000110465923126540/tm2333080d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T11:04:27.323995+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"}