{"schema_version":"secwatch.filing_event.v1","accession":"0000352541-23-000096","form_type":"8-K","ticker":"LNT","cik":"0000352541","company_name":"ALLIANT ENERGY CORP","filed_at":"2023-09-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:36.316033+00:00","generated_at":"2026-06-10T11:23:56.051879+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":"IPL prices $300M in 5.700% senior debentures due 2033","bullets":["IPL priced $300M aggregate principal of 5.700% senior debentures due Oct 15, 2033.","Closing expected Sept 21, 2023; net proceeds to reduce receivables program, commercial paper, or general corporate purposes.","Offering managed by BofA, Mizuho, MUFG, U.S. Bancorp, Wells Fargo as joint book-runners."],"urls":{"canonical":"https://secwatch.observer/filing/0000352541-23-000096","json":"https://secwatch.observer/filing/0000352541-23-000096.json","markdown":"https://secwatch.observer/filing/0000352541-23-000096.md","text":"https://secwatch.observer/filing/0000352541-23-000096.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/352541/000035254123000096/0000352541-23-000096-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/52485/000035254123000096/lnt-20230918.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-10T11:23:56.051879+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"}