{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-108859","form_type":"8-K","ticker":"AEE","cik":"0001002910","company_name":"AMEREN CORP","filed_at":"2026-09-18T17:07:51+00:00","discovered_at":"2026-09-18T17:09:03.308579+00:00","generated_at":"2026-09-18T17:09:06.438605+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Ameren closes $900M junior subordinated notes offering due 2057","bullets":["Sold $900M principal of Junior Subordinated Notes due 2057 on Sept 18, 2026.","Net proceeds of $891.0M before expenses from the offering.","Offered under S-3 registration (File 333-297949) with prospectus supplement dated Sept 8, 2026.","Underwriters include Barclays, BofA Securities, J.P. Morgan, Morgan Stanley, MUFG, Truist.","Notes issued under indenture dated Sept 1, 2026 with BNY Mellon as trustee."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-108859","json":"https://secwatch.observer/filing/0001104659-26-108859.json","markdown":"https://secwatch.observer/filing/0001104659-26-108859.md","text":"https://secwatch.observer/filing/0001104659-26-108859.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1002910/000110465926108859/0001104659-26-108859-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1002910/000110465926108859/tm2625603d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-09-18T17:09:06.438605+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"}