ModelEdge

Interstate Power & Light Co
LNT
Filing Type10-K
Filing Date2/19/2026
Updated2/20/26, 12:58 PM

Filing

10-K
Earnings Release

Exhibits

10-KFY 2024
EX-4.1CEX-4.1C
EX-10.12SUMMARY OF COMPENSATION AND BENEFITS FOR NON-EMPLOYEE DIRECTORS
EX-21.1SUBSIDIARIES OF ALLIANT ENERGY
EX-23.1CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR ALLIANT ENERGY
EX-23.2CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR IPL
EX-23.3CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR WPL
EX-31.1CERTIFICATION OF THE CEO FOR ALLIANT ENERGY
EX-31.2CERTIFICATION OF THE CFO FOR ALLIANT ENERGY
EX-31.3CERTIFICATION OF THE CEO FOR IPL
EX-31.4CERTIFICATION OF THE CFO FOR IPL
EX-31.5CERTIFICATION OF THE CEO FOR WPL
EX-31.6CERTIFICATION OF THE CFO FOR WPL
EX-32.1WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C. 1350 FOR ALLIANT ENERGY
EX-32.2WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C. 1350 FOR IPL
EX-32.3WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C. 1350 FOR WPL
GRAPHICGraphic
GRAPHICGraphic
GRAPHICGraphic
GRAPHICGraphic
GRAPHICGraphic