{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-078757","form_type":"8-K","ticker":"AEE","cik":"0001002910","company_name":"AMEREN CORP","filed_at":"2026-06-29T18:35:17+00:00","discovered_at":"2026-06-29T18:36:00.551758+00:00","generated_at":"2026-06-29T18:36:11.483965+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Ameren Missouri issues $500M of 5.75% First Mortgage Bonds due 2056","bullets":["Principal amount $500M; interest rate 5.75%; maturity 2056; sold on June 29, 2026.","Net proceeds approximately $492.2 million before expenses.","Offered under existing shelf registration; underwriters include Fifth Third, Mizuho, TD Securities, Truist, U.S. Bancorp.","Supplemental indenture dated June 1, 2026; bonds secured by first mortgage."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-078757","json":"https://secwatch.observer/filing/0001104659-26-078757.json","markdown":"https://secwatch.observer/filing/0001104659-26-078757.md","text":"https://secwatch.observer/filing/0001104659-26-078757.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1002910/000110465926078757/0001104659-26-078757-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/100826/000110465926078757/tm2619063d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T18:36:11.483965+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"}