<SEC-DOCUMENT>0001193125-20-318103-index.html : 20201215 <SEC-HEADER>0001193125-20-318103.hdr.sgml : 20201215 <ACCEPTANCE-DATETIME>20201215160554 ACCESSION NUMBER: 0001193125-20-318103 CONFORMED SUBMISSION TYPE: S-3ASR PUBLIC DOCUMENT COUNT: 17 FILED AS OF DATE: 20201215 DATE AS OF CHANGE: 20201215 EFFECTIVENESS DATE: 20201215 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: S-3ASR SEC ACT: 1933 Act SEC FILE NUMBER: 333-251353 FILM NUMBER: 201389658 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 FILER: COMPANY DATA: COMPANY CONFORMED NAME: INTERSTATE POWER & LIGHT CO CENTRAL INDEX KEY: 0000052485 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 420331370 STATE OF INCORPORATION: IA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: S-3ASR SEC ACT: 1933 Act SEC FILE NUMBER: 333-251353-01 FILM NUMBER: 201389656 BUSINESS ADDRESS: STREET 1: 200 FIRST ST SE STREET 2: ALLIANT ENERGY TOWER CITY: CEDAR RAPIDS STATE: IA ZIP: 52401 BUSINESS PHONE: 3193984411 MAIL ADDRESS: STREET 1: 200 FIRST ST SE STREET 2: ALLIANT ENERGY TOWER CITY: CEDAR RAPIDS STATE: IA ZIP: 52401 FORMER COMPANY: FORMER CONFORMED NAME: IES UTILITIES INC DATE OF NAME CHANGE: 20020103 FORMER COMPANY: FORMER CONFORMED NAME: IES UTILITIES INC DATE OF NAME CHANGE: 19940107 FORMER COMPANY: FORMER CONFORMED NAME: IOWA ELECTRIC LIGHT & POWER CO DATE OF NAME CHANGE: 19920703 FILER: COMPANY DATA: COMPANY CONFORMED NAME: WISCONSIN POWER & LIGHT CO CENTRAL INDEX KEY: 0000107832 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 390714890 STATE OF INCORPORATION: WI FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: S-3ASR SEC ACT: 1933 Act SEC FILE NUMBER: 333-251353-02 FILM NUMBER: 201389657 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 N BILTMORE LANE STREET 2: SUITE 1000 CITY: MADISON STATE: WI ZIP: 53718-2148 </SEC-HEADER> <DOCUMENT> <TYPE>S-3ASR <SEQUENCE>1 <FILENAME>d32496ds3asr.htm <DESCRIPTION>S-3ASR <TEXT> Document 1 - file: d32496ds3asr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-5.1 <SEQUENCE>2 <FILENAME>d32496dex51.htm <DESCRIPTION>EX-5.1 <TEXT> Document 2 - file: d32496dex51.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-5.2 <SEQUENCE>3 <FILENAME>d32496dex52.htm <DESCRIPTION>EX-5.2 <TEXT> Document 3 - file: d32496dex52.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-5.3 <SEQUENCE>4 <FILENAME>d32496dex53.htm <DESCRIPTION>EX-5.3 <TEXT> Document 4 - file: d32496dex53.htm
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</DOCUMENT> <DOCUMENT> <TYPE>EX-23.6 <SEQUENCE>7 <FILENAME>d32496dex236.htm <DESCRIPTION>EX-23.6 <TEXT> Document 7 - file: d32496dex236.htm
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</DOCUMENT> <DOCUMENT> <TYPE>EX-24.1 <SEQUENCE>9 <FILENAME>d32496dex241.htm <DESCRIPTION>EX-24.1 <TEXT> Document 9 - file: d32496dex241.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-24.2 <SEQUENCE>10 <FILENAME>d32496dex242.htm <DESCRIPTION>EX-24.2 <TEXT> Document 10 - file: d32496dex242.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-24.3 <SEQUENCE>11 <FILENAME>d32496dex243.htm <DESCRIPTION>EX-24.3 <TEXT> Document 11 - file: d32496dex243.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-25.1 <SEQUENCE>12 <FILENAME>d32496dex251.htm <DESCRIPTION>EX-25.1 <TEXT> Document 12 - file: d32496dex251.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-25.2 <SEQUENCE>13 <FILENAME>d32496dex252.htm <DESCRIPTION>EX-25.2 <TEXT> Document 13 - file: d32496dex252.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-25.3 <SEQUENCE>14 <FILENAME>d32496dex253.htm <DESCRIPTION>EX-25.3 <TEXT> Document 14 - file: d32496dex253.htm
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>g32496snap01.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 17 - file: g32496snap01.jpg
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