{"schema_version":"secwatch.filing_event.v1","accession":"0000352541-23-000032","form_type":"8-K","ticker":null,"cik":"0000107832","company_name":"WISCONSIN POWER & LIGHT CO","filed_at":"2023-03-16T23:59:59+00:00","discovered_at":"2026-05-14T18:03:43.797251+00:00","generated_at":"2026-06-18T00:08:39.961936+00:00","sec_items":["2.03"],"event_type":"debt","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Alliant Energy extends $1B credit facility to Dec 2027; sets new sublimits","bullets":["Amendment extends termination date from Dec 17, 2026 to Dec 17, 2027.","Parent sublimit set at $500M; IPL at $100M; WPL at $400M; total $1B commitment.","LIBOR replaced with SOFR as benchmark rate; cross-default excludes convertible notes.","Effective March 15, 2023; all three entities are borrowers under the facility."],"urls":{"canonical":"https://secwatch.observer/filing/0000352541-23-000032","json":"https://secwatch.observer/filing/0000352541-23-000032.json","markdown":"https://secwatch.observer/filing/0000352541-23-000032.md","text":"https://secwatch.observer/filing/0000352541-23-000032.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/107832/000035254123000032/0000352541-23-000032-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/52485/000035254123000032/lnt-20230315.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-18T00:08:39.961936+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":[{"claim_id":"ac91fb97a4776cb24d44f755b76320d519aa9f9a","claim":"WISCONSIN POWER & LIGHT CO amended credit facility of $1 billion total commitment with Wells Fargo Bank, National Association, as Administrative Agent maturing December 17, 2027.","evidence_excerpt":"The amended sublimits for borrowings by Alliant Energy at the parent company level, IPL and WPL are $500 million, $100 million and $400 million, respectively, within the $1 billion total commitment. The cross-default provision was revised to exclude conversions of convertible notes from events that would constitute a cross default. SIGNATURES Pursuant to","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/107832/000035254123000032/0000352541-23-000032-index.htm","confidence":0.95,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"credit facility"},{"label":"Principal","value":"$1 billion total commitment"},{"label":"Counterparty","value":"Wells Fargo Bank, National Association, as Administrative Agent"},{"label":"Maturity","value":"December 17, 2027"},{"label":"Event","value":"amendment"}],"fact_type":"debt_financing"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}