<SEC-DOCUMENT>0000352541-22-000041-index.html : 20220331 <SEC-HEADER>0000352541-22-000041.hdr.sgml : 20220331 <ACCEPTANCE-DATETIME>20220330181841 ACCESSION NUMBER: 0000352541-22-000041 CONFORMED SUBMISSION TYPE: DEF 14A PUBLIC DOCUMENT COUNT: 29 CONFORMED PERIOD OF REPORT: 20220519 FILED AS OF DATE: 20220331 DATE AS OF CHANGE: 20220330 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ALLIANT ENERGY CORP CENTRAL INDEX KEY: 0000352541 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 391380265 STATE OF INCORPORATION: WI FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: DEF 14A SEC ACT: 1934 Act SEC FILE NUMBER: 001-09894 FILM NUMBER: 22788276 BUSINESS ADDRESS: STREET 1: 4902 NORTH BILTMORE LANE STREET 2: SUITE 1000 CITY: MADISON STATE: WI ZIP: 53718-2148 BUSINESS PHONE: 608-458-3311 MAIL ADDRESS: STREET 1: 4902 NORTH BILTMORE LANE STREET 2: SUITE 1000 CITY: MADISON STATE: WI ZIP: 53718-2148 FORMER COMPANY: FORMER CONFORMED NAME: INTERSTATE ENERGY CORP DATE OF NAME CHANGE: 19980427 FORMER COMPANY: FORMER CONFORMED NAME: WPL HOLDINGS INC DATE OF NAME CHANGE: 19920703 </SEC-HEADER> <DOCUMENT> <TYPE>DEF 14A <SEQUENCE>1 <FILENAME>lnt2022def14a.htm <DESCRIPTION>DEF 14A <TEXT> Document 1 - file: lnt2022def14a.htm
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