INDENTURE Dated as of November 10, 2023 Among ALLIANT ENERGY FINANCE, LLC, as Issuer, ALLIANT ENERGY CORPORATION, as Guarantor and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee 5.950% SENIOR NOTES DUE 2029Indenture • November 13th, 2023 • Alliant Energy Corp • Electric & other services combined • New York
Unrestricted Definitive Note is being acquired in compliance with any applicable blue sky securities laws of any state of the United States.
