secwatch.observer — SEC 8-K summary ====================================== Issuer: AMEREN CORP (AEE) CIK: 0001002910 Form: 8-K Filed at: 2026-09-18T17:07:51+00:00 Accession: 0001104659-26-108859 Event type: debt Sentiment: neutral Materiality: 0.45 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Ameren closes $900M junior subordinated notes offering due 2057 --------------------------------------------------------------- - 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. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1002910/000110465926108859/0001104659-26-108859-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1002910/000110465926108859/tm2625603d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-26-108859 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer