{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-25-032125","form_type":"8-K","ticker":"AEE","cik":"0001002910","company_name":"AMEREN CORP","filed_at":"2025-04-04T23:59:59+00:00","discovered_at":"2026-05-14T18:02:47.126965+00:00","generated_at":"2026-05-23T20:38:42.083142+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Ameren Missouri sells $500M 5.25% first mortgage bonds due 2035","bullets":["Principal amount of $500 million, coupon rate 5.25%, maturity 2035.","Net offering proceeds of approximately $496.6 million before expenses.","Issued by Union Electric Company (Ameren Missouri), a subsidiary of Ameren Corporation (AEE).","Offered under effective shelf registration and prospectus supplement dated March 26, 2025."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-25-032125","json":"https://secwatch.observer/filing/0001104659-25-032125.json","markdown":"https://secwatch.observer/filing/0001104659-25-032125.md","text":"https://secwatch.observer/filing/0001104659-25-032125.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1002910/000110465925032125/0001104659-25-032125-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/100826/000110465925032125/tm2511035d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T20:38:42.083142+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"}