secwatch.observer — SEC 8-K summary ====================================== Issuer: ALLIANT ENERGY CORP (LNT) CIK: 0000352541 Form: 8-K Filed at: 2025-09-26T23:59:59+00:00 Accession: 0000352541-25-000076 Event type: debt Sentiment: neutral Materiality: 0.60 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Alliant Energy prices $725M of 5.750% junior subordinated notes due 2056 ------------------------------------------------------------------------ - $725M principal of 5.750% junior subordinated notes due Apr 1, 2056 priced. - Net proceeds to reduce commercial paper, retire long-term debt, or general corporate purposes. - Closing expected Sept 26, 2025, subject to customary conditions. - Underwriters: BofA, MUFG, Barclays, Goldman Sachs, J.P. Morgan, Mizuho, Wells Fargo. - Notes are Fixed-to-Fixed Reset Rate junior subordinated; registered under shelf S-3. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/352541/000035254125000076/0000352541-25-000076-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/352541/000035254125000076/lnt-20250923.htm HTML page: https://secwatch.observer/filing/0000352541-25-000076 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer