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ALLIANT ENERGY CORP

4/A 44 filings

All 4/A Filings

Complete history of 4/A filings with the SEC

Date Filed View on EDGAR
19 Mar
Mar 19, 2026
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04 Mar
Mar 04, 2021
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04 Mar
Mar 04, 2021
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04 Mar
Mar 04, 2021
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04 Mar
Mar 04, 2021
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04 Mar
Mar 04, 2021
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15 Mar
Mar 15, 2016
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15 Mar
Mar 15, 2016
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22 Apr
Apr 22, 2015
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22 Apr
Apr 22, 2015
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22 Apr
Apr 22, 2015
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22 Apr
Apr 22, 2015
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22 Apr
Apr 22, 2015
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22 Apr
Apr 22, 2015
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29 Feb
Feb 29, 2012
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29 Feb
Feb 29, 2012
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18 Jan
Jan 18, 2012
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13 Sep
Sep 13, 2010
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13 Sep
Sep 13, 2010
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30 Aug
Aug 30, 2007
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30 Aug
Aug 30, 2007
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30 Aug
Aug 30, 2007
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30 Aug
Aug 30, 2007
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30 Aug
Aug 30, 2007
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27 Mar
Mar 27, 2007
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01 Dec
Dec 01, 2006
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01 Dec
Dec 01, 2006
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01 Dec
Dec 01, 2006
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01 Dec
Dec 01, 2006
open_in_new View Filing
01 Dec
Dec 01, 2006
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01 Dec
Dec 01, 2006
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01 Dec
Dec 01, 2006
open_in_new View Filing
01 Dec
Dec 01, 2006
open_in_new View Filing
01 Dec
Dec 01, 2006
open_in_new View Filing
01 Dec
Dec 01, 2006
open_in_new View Filing
01 Dec
Dec 01, 2006
open_in_new View Filing
01 Dec
Dec 01, 2006
open_in_new View Filing
01 Dec
Dec 01, 2006
open_in_new View Filing
01 Dec
Dec 01, 2006
open_in_new View Filing
01 Dec
Dec 01, 2006
open_in_new View Filing
18 Jun
Jun 18, 2004
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25 Feb
Feb 25, 2004
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24 Nov
Nov 24, 2003
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24 Nov
Nov 24, 2003
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