<SEC-DOCUMENT>0001193125-18-350363-index.html : 20181217 <SEC-HEADER>0001193125-18-350363.hdr.sgml : 20181217 <ACCEPTANCE-DATETIME>20181217060707 ACCESSION NUMBER: 0001193125-18-350363 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 12 CONFORMED PERIOD OF REPORT: 20181213 ITEM INFORMATION: Entry into a Material Definitive Agreement ITEM INFORMATION: Other Events ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20181217 DATE AS OF CHANGE: 20181217 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: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-09894 FILM NUMBER: 181236939 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>8-K <SEQUENCE>1 <FILENAME>d676944d8k.htm <DESCRIPTION>FORM 8-K <TEXT> Document 1 - file: d676944d8k.htm
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