Listed

Alliant Energy Corp

LNTNasdaqCIK 352541UtilitiesFiscal year ends Dec 31

Standardized line items from XBRL company facts, the last twelve quarters. Negative values are in parentheses. A figure marked d is derived from year-to-date figures.

Income statement

Revenue$1.18bn, Q1 FY2026
Operating income$249.0m, Q1 FY2026
Net income$224.0m, Q1 FY2026
Alliant Energy Corp, income statement, quarterly
Line itemUnitQ2 FY20232023-06-30Q3 FY20232023-09-30Q4 FY20232023-12-31Q1 FY20242024-03-31Q2 FY20242024-06-30Q3 FY20242024-09-30Q4 FY20242024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q4 FY20252025-12-31Q1 FY20262026-03-31
Revenue$m912Revenue, Q2 FY2023, three months to 2023-06-30$912.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure1,077Revenue, Q3 FY2023, three months to 2023-09-30$1.08bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure961Revenue, Q4 FY2023, three months to 2023-12-31$961.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure1,031Revenue, Q1 FY2024, three months to 2024-03-31$1.03bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure894Revenue, Q2 FY2024, three months to 2024-06-30$894.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure1,081Revenue, Q3 FY2024, three months to 2024-09-30$1.08bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure976Revenue, Q4 FY2024, three months to 2024-12-31$976.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure1,128Revenue, Q1 FY2025, three months to 2025-03-31$1.13bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure961Revenue, Q2 FY2025, three months to 2025-06-30$961.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure1,210Revenue, Q3 FY2025, three months to 2025-09-30$1.21bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure1,064Revenue, Q4 FY2025, three months to 2025-12-31$1.06bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure1,184Revenue, Q1 FY2026, three months to 2026-03-31$1.18bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Cost of revenue$m138Cost of revenue, Q2 FY2023, three months to 2023-06-30$138.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure154Cost of revenue, Q3 FY2023, three months to 2023-09-30$154.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure145Cost of revenue, Q4 FY2023, three months to 2023-12-31$145.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure152Cost of revenue, Q1 FY2024, three months to 2024-03-31$152.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure147Cost of revenue, Q2 FY2024, three months to 2024-06-30$147.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure165Cost of revenue, Q3 FY2024, three months to 2024-09-30$165.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure149Cost of revenue, Q4 FY2024, three months to 2024-12-31$149.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure158Cost of revenue, Q1 FY2025, three months to 2025-03-31$158.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure151Cost of revenue, Q2 FY2025, three months to 2025-06-30$151.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure166Cost of revenue, Q3 FY2025, three months to 2025-09-30$166.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure151Cost of revenue, Q4 FY2025, three months to 2025-12-31$151.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure159Cost of revenue, Q1 FY2026, three months to 2026-03-31$159.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Operating income$m217Operating income, Q2 FY2023, three months to 2023-06-30$217.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure322Operating income, Q3 FY2023, three months to 2023-09-30$322.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure183Operating income, Q4 FY2023, three months to 2023-12-31$183.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure222Operating income, Q1 FY2024, three months to 2024-03-31$222.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure130Operating income, Q2 FY2024, three months to 2024-06-30$130.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure313Operating income, Q3 FY2024, three months to 2024-09-30$313.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure221Operating income, Q4 FY2024, three months to 2024-12-31$221.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure257Operating income, Q1 FY2025, three months to 2025-03-31$257.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure223Operating income, Q2 FY2025, three months to 2025-06-30$223.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure349Operating income, Q3 FY2025, three months to 2025-09-30$349.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure197Operating income, Q4 FY2025, three months to 2025-12-31$197.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure249Operating income, Q1 FY2026, three months to 2026-03-31$249.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Interest expense$m96.0Interest expense, Q2 FY2023, three months to 2023-06-30$96.0m. XBRL concept us-gaap:InterestExpense. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure99.0Interest expense, Q3 FY2023, three months to 2023-09-30$99.0m. XBRL concept us-gaap:InterestExpense. 10-Q filed 2023-11-03, accession 0000352541-23-000108.Report this figure105Interest expense, Q4 FY2023, three months to 2023-12-31$105.0m. XBRL concept us-gaap:InterestExpense. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure107Interest expense, Q1 FY2024, three months to 2024-03-31$107.0m. XBRL concept us-gaap:InterestExpense. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure108Interest expense, Q2 FY2024, three months to 2024-06-30$108.0m. XBRL concept us-gaap:InterestExpense. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure114Interest expense, Q3 FY2024, three months to 2024-09-30$114.0m. XBRL concept us-gaap:InterestExpense. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure120Interest expense, Q4 FY2024, three months to 2024-12-31$120.0m. XBRL concept us-gaap:InterestExpense. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure119Interest expense, Q1 FY2025, three months to 2025-03-31$119.0m. XBRL concept us-gaap:InterestExpense. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure124Interest expense, Q2 FY2025, three months to 2025-06-30$124.0m. XBRL concept us-gaap:InterestExpense. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure128Interest expense, Q3 FY2025, three months to 2025-09-30$128.0m. XBRL concept us-gaap:InterestExpense. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure140Interest expense, Q4 FY2025, three months to 2025-12-31$140.0m. XBRL concept us-gaap:InterestExpense. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure142Interest expense, Q1 FY2026, three months to 2026-03-31$142.0m. XBRL concept us-gaap:InterestExpense. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Income tax$m0.0Income tax, Q2 FY2023, three months to 2023-06-30$0. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure5.0Income tax, Q3 FY2023, three months to 2023-09-30$5.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure1.0Income tax, Q4 FY2023, three months to 2023-12-31$1.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure(10.0)Income tax, Q1 FY2024, three months to 2024-03-31−$10.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure(33.0)Income tax, Q2 FY2024, three months to 2024-06-30−$33.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure(62.0)Income tax, Q3 FY2024, three months to 2024-09-30−$62.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure(10.0)Income tax, Q4 FY2024, three months to 2024-12-31−$10.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure(47.0)Income tax, Q1 FY2025, three months to 2025-03-31−$47.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure(43.0)Income tax, Q2 FY2025, three months to 2025-06-30−$43.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure(18.0)Income tax, Q3 FY2025, three months to 2025-09-30−$18.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure(40.0)Income tax, Q4 FY2025, three months to 2025-12-31−$40.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure(61.0)Income tax, Q1 FY2026, three months to 2026-03-31−$61.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Net income$m160Net income, Q2 FY2023, three months to 2023-06-30$160.0m. XBRL concept us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure259Net income, Q3 FY2023, three months to 2023-09-30$259.0m. XBRL concept us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure121Net income, Q4 FY2023, three months to 2023-12-31$121.0m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure158Net income, Q1 FY2024, three months to 2024-03-31$158.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure87.0Net income, Q2 FY2024, three months to 2024-06-30$87.0m. XBRL concept us-gaap:ProfitLoss. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure295Net income, Q3 FY2024, three months to 2024-09-30$295.0m. XBRL concept us-gaap:ProfitLoss. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure150Net income, Q4 FY2024, three months to 2024-12-31$150.0m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure213Net income, Q1 FY2025, three months to 2025-03-31$213.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure174Net income, Q2 FY2025, three months to 2025-06-30$174.0m. XBRL concept us-gaap:ProfitLoss. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure281Net income, Q3 FY2025, three months to 2025-09-30$281.0m. XBRL concept us-gaap:ProfitLoss. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure142Net income, Q4 FY2025, three months to 2025-12-31$142.0m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure224Net income, Q1 FY2026, three months to 2026-03-31$224.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Diluted EPS$ per share0.64Diluted EPS, Q2 FY2023, three months to 2023-06-30$0.64 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure1.02Diluted EPS, Q3 FY2023, three months to 2023-09-30$1.02 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figurenot reported0.62Diluted EPS, Q1 FY2024, three months to 2024-03-31$0.62 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure0.34Diluted EPS, Q2 FY2024, three months to 2024-06-30$0.34 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure1.15Diluted EPS, Q3 FY2024, three months to 2024-09-30$1.15 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figurenot reported0.83Diluted EPS, Q1 FY2025, three months to 2025-03-31$0.83 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure0.68Diluted EPS, Q2 FY2025, three months to 2025-06-30$0.68 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure1.09Diluted EPS, Q3 FY2025, three months to 2025-09-30$1.09 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figurenot reported0.87Diluted EPS, Q1 FY2026, three months to 2026-03-31$0.87 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Basic EPS$ per share0.64Basic EPS, Q2 FY2023, three months to 2023-06-30$0.64 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure1.02Basic EPS, Q3 FY2023, three months to 2023-09-30$1.02 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figurenot reported0.62Basic EPS, Q1 FY2024, three months to 2024-03-31$0.62 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure0.34Basic EPS, Q2 FY2024, three months to 2024-06-30$0.34 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure1.15Basic EPS, Q3 FY2024, three months to 2024-09-30$1.15 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figurenot reported0.83Basic EPS, Q1 FY2025, three months to 2025-03-31$0.83 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure0.68Basic EPS, Q2 FY2025, three months to 2025-06-30$0.68 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure1.09Basic EPS, Q3 FY2025, three months to 2025-09-30$1.09 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figurenot reported0.87Basic EPS, Q1 FY2026, three months to 2026-03-31$0.87 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure

Balance sheet

Cash and equivalents$115.0m, Q1 FY2026
Long-term debt$11.01bn, Q1 FY2026
Shareholders' equity$7.42bn, Q1 FY2026
Alliant Energy Corp, balance sheet, quarterly
Line itemUnitQ2 FY20232023-06-30Q3 FY20232023-09-30FY20232023-12-31Q1 FY20242024-03-31Q2 FY20242024-06-30Q3 FY20242024-09-30FY20242024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30FY20252025-12-31Q1 FY20262026-03-31
Cash and equivalents$bn0.0Cash and equivalents, Q2 FY2023, at 2023-06-30$13.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2023-08-04, accession 0000352541-23-000091.Report this figure0.2Cash and equivalents, Q3 FY2023, at 2023-09-30$206.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2023-11-03, accession 0000352541-23-000108.Report this figure0.1Cash and equivalents, FY2023, at 2023-12-31$62.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-K filed 2025-02-21, accession 0000352541-25-000014.Report this figure0.0Cash and equivalents, Q1 FY2024, at 2024-03-31$32.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2024-05-03, accession 0000352541-24-000058.Report this figure0.1Cash and equivalents, Q2 FY2024, at 2024-06-30$92.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure0.8Cash and equivalents, Q3 FY2024, at 2024-09-30$827.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure0.1Cash and equivalents, FY2024, at 2024-12-31$81.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-K filed 2026-02-20, accession 0000352541-26-000007.Report this figure0.0Cash and equivalents, Q1 FY2025, at 2025-03-31$25.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure0.3Cash and equivalents, Q2 FY2025, at 2025-06-30$329.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure0.5Cash and equivalents, Q3 FY2025, at 2025-09-30$503.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure0.6Cash and equivalents, FY2025, at 2025-12-31$556.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure0.1Cash and equivalents, Q1 FY2026, at 2026-03-31$115.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Current assets$bn1.1Current assets, Q2 FY2023, at 2023-06-30$1.14bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2023-08-04, accession 0000352541-23-000091.Report this figure1.4Current assets, Q3 FY2023, at 2023-09-30$1.37bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2023-11-03, accession 0000352541-23-000108.Report this figure1.3Current assets, FY2023, at 2023-12-31$1.27bn. XBRL concept us-gaap:AssetsCurrent. 10-K filed 2025-02-21, accession 0000352541-25-000014.Report this figure1.1Current assets, Q1 FY2024, at 2024-03-31$1.11bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2024-05-03, accession 0000352541-24-000058.Report this figure1.2Current assets, Q2 FY2024, at 2024-06-30$1.21bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure2.0Current assets, Q3 FY2024, at 2024-09-30$1.97bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure1.2Current assets, FY2024, at 2024-12-31$1.18bn. XBRL concept us-gaap:AssetsCurrent. 10-K filed 2026-02-20, accession 0000352541-26-000007.Report this figure1.0Current assets, Q1 FY2025, at 2025-03-31$969.0m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure1.5Current assets, Q2 FY2025, at 2025-06-30$1.47bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure1.8Current assets, Q3 FY2025, at 2025-09-30$1.84bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure1.7Current assets, FY2025, at 2025-12-31$1.70bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure1.2Current assets, Q1 FY2026, at 2026-03-31$1.22bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Total assets$bn20.4Total assets, Q2 FY2023, at 2023-06-30$20.38bn. XBRL concept us-gaap:Assets. 10-Q filed 2023-08-04, accession 0000352541-23-000091.Report this figure20.9Total assets, Q3 FY2023, at 2023-09-30$20.90bn. XBRL concept us-gaap:Assets. 10-Q filed 2023-11-03, accession 0000352541-23-000108.Report this figure21.2Total assets, FY2023, at 2023-12-31$21.24bn. XBRL concept us-gaap:Assets. 10-K filed 2026-02-20, accession 0000352541-26-000007.Report this figure21.2Total assets, Q1 FY2024, at 2024-03-31$21.25bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure21.8Total assets, Q2 FY2024, at 2024-06-30$21.84bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure22.8Total assets, Q3 FY2024, at 2024-09-30$22.83bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure22.7Total assets, FY2024, at 2024-12-31$22.71bn. XBRL concept us-gaap:Assets. 10-K filed 2026-02-20, accession 0000352541-26-000007.Report this figure22.9Total assets, Q1 FY2025, at 2025-03-31$22.85bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure23.8Total assets, Q2 FY2025, at 2025-06-30$23.75bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure24.6Total assets, Q3 FY2025, at 2025-09-30$24.63bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure25.0Total assets, FY2025, at 2025-12-31$24.99bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure24.8Total assets, Q1 FY2026, at 2026-03-31$24.81bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Current liabilities$bn1.9Current liabilities, Q2 FY2023, at 2023-06-30$1.89bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2023-08-04, accession 0000352541-23-000091.Report this figure1.9Current liabilities, Q3 FY2023, at 2023-09-30$1.94bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2023-11-03, accession 0000352541-23-000108.Report this figure2.3Current liabilities, FY2023, at 2023-12-31$2.30bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-K filed 2025-02-21, accession 0000352541-25-000014.Report this figure2.0Current liabilities, Q1 FY2024, at 2024-03-31$1.98bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2024-05-03, accession 0000352541-24-000058.Report this figure1.9Current liabilities, Q2 FY2024, at 2024-06-30$1.85bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure2.3Current liabilities, Q3 FY2024, at 2024-09-30$2.29bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure2.7Current liabilities, FY2024, at 2024-12-31$2.71bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-K filed 2026-02-20, accession 0000352541-26-000007.Report this figure2.9Current liabilities, Q1 FY2025, at 2025-03-31$2.89bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure2.6Current liabilities, Q2 FY2025, at 2025-06-30$2.58bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure2.2Current liabilities, Q3 FY2025, at 2025-09-30$2.23bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure2.1Current liabilities, FY2025, at 2025-12-31$2.12bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure1.8Current liabilities, Q1 FY2026, at 2026-03-31$1.78bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Long-term debt$bn8.2Long-term debt, Q2 FY2023, at 2023-06-30$8.19bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2023-08-04, accession 0000352541-23-000091.Report this figure8.4Long-term debt, Q3 FY2023, at 2023-09-30$8.43bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2023-11-03, accession 0000352541-23-000108.Report this figure8.2Long-term debt, FY2023, at 2023-12-31$8.22bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-K filed 2025-02-21, accession 0000352541-25-000014.Report this figure8.5Long-term debt, Q1 FY2024, at 2024-03-31$8.52bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2024-05-03, accession 0000352541-24-000058.Report this figure8.9Long-term debt, Q2 FY2024, at 2024-06-30$8.90bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure9.2Long-term debt, Q3 FY2024, at 2024-09-30$9.24bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure8.7Long-term debt, FY2024, at 2024-12-31$8.68bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-K filed 2026-02-20, accession 0000352541-26-000007.Report this figure8.6Long-term debt, Q1 FY2025, at 2025-03-31$8.58bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure9.6Long-term debt, Q2 FY2025, at 2025-06-30$9.64bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure10.7Long-term debt, Q3 FY2025, at 2025-09-30$10.65bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure11.0Long-term debt, FY2025, at 2025-12-31$10.95bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure11.0Long-term debt, Q1 FY2026, at 2026-03-31$11.01bn. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Current portion of debt$bn0.4Current portion of debt, Q2 FY2023, at 2023-06-30$409.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2023-08-04, accession 0000352541-23-000091.Report this figure0.4Current portion of debt, Q3 FY2023, at 2023-09-30$409.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2023-11-03, accession 0000352541-23-000108.Report this figure0.8Current portion of debt, FY2023, at 2023-12-31$809.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-K filed 2025-02-21, accession 0000352541-25-000014.Report this figure0.8Current portion of debt, Q1 FY2024, at 2024-03-31$809.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2024-05-03, accession 0000352541-24-000058.Report this figure0.8Current portion of debt, Q2 FY2024, at 2024-06-30$804.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure1.1Current portion of debt, Q3 FY2024, at 2024-09-30$1.10bn. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure1.2Current portion of debt, FY2024, at 2024-12-31$1.17bn. XBRL concept us-gaap:LongTermDebtCurrent. 10-K filed 2026-02-20, accession 0000352541-26-000007.Report this figure1.4Current portion of debt, Q1 FY2025, at 2025-03-31$1.37bn. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure1.4Current portion of debt, Q2 FY2025, at 2025-06-30$1.37bn. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure1.1Current portion of debt, Q3 FY2025, at 2025-09-30$1.07bn. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure1.1Current portion of debt, FY2025, at 2025-12-31$1.07bn. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure0.0Current portion of debt, Q1 FY2026, at 2026-03-31$0. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Short-term borrowings$bn0.4Short-term borrowings, Q2 FY2023, at 2023-06-30$391.0m. XBRL concept us-gaap:ShortTermBorrowings. 10-Q filed 2023-08-04, accession 0000352541-23-000091.Report this figure0.5Short-term borrowings, Q3 FY2023, at 2023-09-30$451.0m. XBRL concept us-gaap:ShortTermBorrowings. 10-Q filed 2023-11-03, accession 0000352541-23-000108.Report this figure0.5Short-term borrowings, FY2023, at 2023-12-31$475.0m. XBRL concept us-gaap:CommercialPaper. 10-K filed 2025-02-21, accession 0000352541-25-000014.Report this figure0.3Short-term borrowings, Q1 FY2024, at 2024-03-31$334.0m. XBRL concept us-gaap:ShortTermBorrowings. 10-Q filed 2024-05-03, accession 0000352541-24-000058.Report this figure0.1Short-term borrowings, Q2 FY2024, at 2024-06-30$52.0m. XBRL concept us-gaap:ShortTermBorrowings. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure0.3Short-term borrowings, Q3 FY2024, at 2024-09-30$330.0m. XBRL concept us-gaap:ShortTermBorrowings. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure0.6Short-term borrowings, FY2024, at 2024-12-31$558.0m. XBRL concept us-gaap:CommercialPaper. 10-K filed 2026-02-20, accession 0000352541-26-000007.Report this figure0.7Short-term borrowings, Q1 FY2025, at 2025-03-31$678.0m. XBRL concept us-gaap:ShortTermBorrowings. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure0.3Short-term borrowings, Q2 FY2025, at 2025-06-30$292.0m. XBRL concept us-gaap:ShortTermBorrowings. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure0.2Short-term borrowings, Q3 FY2025, at 2025-09-30$192.0m. XBRL concept us-gaap:ShortTermBorrowings. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure0.1Short-term borrowings, FY2025, at 2025-12-31$88.0m. XBRL concept us-gaap:CommercialPaper. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure0.4Short-term borrowings, Q1 FY2026, at 2026-03-31$433.0m. XBRL concept us-gaap:ShortTermBorrowings. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Shareholders' equity$bn6.5Shareholders' equity, Q2 FY2023, at 2023-06-30$6.45bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2023-08-04, accession 0000352541-23-000091.Report this figure6.7Shareholders' equity, Q3 FY2023, at 2023-09-30$6.73bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2023-11-03, accession 0000352541-23-000108.Report this figure6.8Shareholders' equity, FY2023, at 2023-12-31$6.78bn. XBRL concept us-gaap:StockholdersEquity. 10-K filed 2025-02-21, accession 0000352541-25-000014.Report this figure6.8Shareholders' equity, Q1 FY2024, at 2024-03-31$6.82bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2024-05-03, accession 0000352541-24-000058.Report this figure6.8Shareholders' equity, Q2 FY2024, at 2024-06-30$6.79bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure7.0Shareholders' equity, Q3 FY2024, at 2024-09-30$6.97bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure7.0Shareholders' equity, FY2024, at 2024-12-31$7.00bn. XBRL concept us-gaap:StockholdersEquity. 10-K filed 2026-02-20, accession 0000352541-26-000007.Report this figure7.1Shareholders' equity, Q1 FY2025, at 2025-03-31$7.09bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure7.1Shareholders' equity, Q2 FY2025, at 2025-06-30$7.14bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure7.3Shareholders' equity, Q3 FY2025, at 2025-09-30$7.31bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure7.3Shareholders' equity, FY2025, at 2025-12-31$7.33bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure7.4Shareholders' equity, Q1 FY2026, at 2026-03-31$7.42bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure

Cash flow

Operating cash flow$368.0m, Q1 FY2026
Capital expenditure$342.0m, Q1 FY2026
Alliant Energy Corp, cash flow, quarterly
Line itemUnitQ2 FY20232023-06-30Q3 FY20232023-09-30Q4 FY20232023-12-31Q1 FY20242024-03-31Q2 FY20242024-06-30Q3 FY20242024-09-30Q4 FY20242024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q4 FY20252025-12-31Q1 FY20262026-03-31
Operating cash flow$m123Operating cash flow, Q2 FY2023, three months to 2023-06-30$123.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2024-08-02, accession 0000352541-24-000089. Derived: 6-month figure less the 3-month figure.Report this figure311Operating cash flow, Q3 FY2023, three months to 2023-09-30$311.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2024-11-01, accession 0000352541-24-000104. Derived: 9-month figure less the 6-month figure.Report this figure245Operating cash flow, Q4 FY2023, three months to 2023-12-31$245.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure307Operating cash flow, Q1 FY2024, three months to 2024-03-31$307.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure255Operating cash flow, Q2 FY2024, three months to 2024-06-30$255.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-08-08, accession 0000352541-25-000072. Derived: 6-month figure less the 3-month figure.Report this figure351Operating cash flow, Q3 FY2024, three months to 2024-09-30$351.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-07, accession 0000352541-25-000081. Derived: 9-month figure less the 6-month figure.Report this figure254Operating cash flow, Q4 FY2024, three months to 2024-12-31$254.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure249Operating cash flow, Q1 FY2025, three months to 2025-03-31$249.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure243Operating cash flow, Q2 FY2025, three months to 2025-06-30$243.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-08-08, accession 0000352541-25-000072. Derived: 6-month figure less the 3-month figure.Report this figure408Operating cash flow, Q3 FY2025, three months to 2025-09-30$408.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-07, accession 0000352541-25-000081. Derived: 9-month figure less the 6-month figure.Report this figure269Operating cash flow, Q4 FY2025, three months to 2025-12-31$269.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure368Operating cash flow, Q1 FY2026, three months to 2026-03-31$368.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Capital expenditure$m341Capital expenditure, Q2 FY2023, three months to 2023-06-30$341.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2024-08-02, accession 0000352541-24-000089. Derived: 6-month figure less the 3-month figure.Report this figure443Capital expenditure, Q3 FY2023, three months to 2023-09-30$443.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2024-11-01, accession 0000352541-24-000104. Derived: 9-month figure less the 6-month figure.Report this figurenot reported478Capital expenditure, Q1 FY2024, three months to 2024-03-31$478.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure392Capital expenditure, Q2 FY2024, three months to 2024-06-30$392.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-08-08, accession 0000352541-25-000072. Derived: 6-month figure less the 3-month figure.Report this figure410Capital expenditure, Q3 FY2024, three months to 2024-09-30$410.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-11-07, accession 0000352541-25-000081. Derived: 9-month figure less the 6-month figure.Report this figurenot reported554Capital expenditure, Q1 FY2025, three months to 2025-03-31$554.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure422Capital expenditure, Q2 FY2025, three months to 2025-06-30$422.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-08-08, accession 0000352541-25-000072. Derived: 6-month figure less the 3-month figure.Report this figure511Capital expenditure, Q3 FY2025, three months to 2025-09-30$511.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-11-07, accession 0000352541-25-000081. Derived: 9-month figure less the 6-month figure.Report this figurenot reported342Capital expenditure, Q1 FY2026, three months to 2026-03-31$342.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure
Dividends paid$m113Dividends paid, Q2 FY2023, three months to 2023-06-30$113.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2024-08-02, accession 0000352541-24-000089. Derived: 6-month figure less the 3-month figure.Report this figure115Dividends paid, Q3 FY2023, three months to 2023-09-30$115.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2024-11-01, accession 0000352541-24-000104. Derived: 9-month figure less the 6-month figure.Report this figure115Dividends paid, Q4 FY2023, three months to 2023-12-31$115.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure123Dividends paid, Q1 FY2024, three months to 2024-03-31$123.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure123Dividends paid, Q2 FY2024, three months to 2024-06-30$123.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2025-08-08, accession 0000352541-25-000072. Derived: 6-month figure less the 3-month figure.Report this figure123Dividends paid, Q3 FY2024, three months to 2024-09-30$123.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2025-11-07, accession 0000352541-25-000081. Derived: 9-month figure less the 6-month figure.Report this figure123Dividends paid, Q4 FY2024, three months to 2024-12-31$123.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure130Dividends paid, Q1 FY2025, three months to 2025-03-31$130.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure131Dividends paid, Q2 FY2025, three months to 2025-06-30$131.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2025-08-08, accession 0000352541-25-000072. Derived: 6-month figure less the 3-month figure.Report this figure130Dividends paid, Q3 FY2025, three months to 2025-09-30$130.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2025-11-07, accession 0000352541-25-000081. Derived: 9-month figure less the 6-month figure.Report this figure130Dividends paid, Q4 FY2025, three months to 2025-12-31$130.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-K filed 2026-02-20, accession 0000352541-26-000007. Derived: 12-month figure less the 9-month figure.Report this figure137Dividends paid, Q1 FY2026, three months to 2026-03-31$137.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure

Shares

Diluted shares (weighted)258.80m, Q1 FY2026
Alliant Energy Corp, shares, quarterly
Line itemUnitQ2 FY20222022-06-30Q3 FY20222022-09-30Q1 FY20232023-03-31Q2 FY20232023-06-30Q3 FY20232023-09-30Q1 FY20242024-03-31Q2 FY20242024-06-30Q3 FY20242024-09-30Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q1 FY20262026-03-31
Diluted shares (weighted)m shares251Diluted shares (weighted), Q2 FY2022, three months to 2022-06-30251,100,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2023-08-04, accession 0000352541-23-000091.Report this figure251Diluted shares (weighted), Q3 FY2022, three months to 2022-09-30251,300,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2023-11-03, accession 0000352541-23-000108.Report this figure251Diluted shares (weighted), Q1 FY2023, three months to 2023-03-31251,400,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2024-05-03, accession 0000352541-24-000058.Report this figure252Diluted shares (weighted), Q2 FY2023, three months to 2023-06-30251,900,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2024-08-02, accession 0000352541-24-000089.Report this figure254Diluted shares (weighted), Q3 FY2023, three months to 2023-09-30253,800,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2024-11-01, accession 0000352541-24-000104.Report this figure257Diluted shares (weighted), Q1 FY2024, three months to 2024-03-31256,500,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-05-09, accession 0000352541-25-000053.Report this figure257Diluted shares (weighted), Q2 FY2024, three months to 2024-06-30256,700,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure257Diluted shares (weighted), Q3 FY2024, three months to 2024-09-30256,900,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure257Diluted shares (weighted), Q1 FY2025, three months to 2025-03-31257,200,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure257Diluted shares (weighted), Q2 FY2025, three months to 2025-06-30257,300,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-08-08, accession 0000352541-25-000072.Report this figure258Diluted shares (weighted), Q3 FY2025, three months to 2025-09-30257,800,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-11-07, accession 0000352541-25-000081.Report this figure259Diluted shares (weighted), Q1 FY2026, three months to 2026-03-31258,800,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure

Shares outstanding: 258.28mShares outstanding, Q1 FY2026, at 2026-03-31258,277,037 shares. XBRL concept dei:EntityCommonStockSharesOutstanding. 10-Q filed 2026-05-01, accession 0000352541-26-000033.Report this figure at Mar 31, 2026, from the cover of the 10-Q filed May 1, 2026.

Source: SEC EDGAR, XBRL company facts. Last ingested by Listed: Oct 24, 2026, 15:22 ET. Listed shows no prices and gives no investment advice.