secwatch.observer — SEC 8-K summary ====================================== Issuer: ALLIANT ENERGY CORP (LNT) CIK: 0000352541 Form: 8-K Filed at: 2025-05-15T23:59:59+00:00 Accession: 0001193125-25-120808 Event type: debt Sentiment: neutral Materiality: 0.60 Item codes: 1.01, 2.03, 3.02, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Alliant Energy closes $575M 3.250% convertible notes offering due 2028 ---------------------------------------------------------------------- - $575M aggregate principal of 3.250% convertible senior notes due 2028 issued, including full $75M option exercise. - Initial conversion rate 13.1773 shares per $1,000 principal, conversion price ~$75.89/share (27.5% premium). - Net proceeds ~$567M (after discounts) to repay debt, reduce commercial paper, or general corporate purposes. - Notes mature May 30, 2028; interest payable semi-annually starting Nov 30, 2025. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/352541/000119312525120808/0001193125-25-120808-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/352541/000119312525120808/d928152d8k.htm HTML page: https://secwatch.observer/filing/0001193125-25-120808 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer