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ALLIANT ENERGY CORP (LNT)
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Filings
Date Filed
Type
Description
12/14/2022
424B5
Form 424B5 - Prospectus [Rule 424(b)(5)]:
11/15/2019
424B2
Form 424B2 - Prospectus [Rule 424(b)(2)]:
11/14/2019
424B5
Form 424B5 - Prospectus [Rule 424(b)(5)]:
12/14/2018
424B2
Form 424B2 - Prospectus [Rule 424(b)(2)]:
12/13/2018
424B5
Form 424B5 - Prospectus [Rule 424(b)(5)]:
05/09/2017
424B5
Form 424B5 - Prospectus [Rule 424(b)(5)]
10/01/2009
424B5
Form 424B5 - Prospectus [Rule 424(b)(5)]
09/30/2009
424B5
Form 424B5 - Prospectus [Rule 424(b)(5)]
12/12/2008
424B3
Form 424B3 -- Prospectus [Rule 424(b)(3)]
07/13/2007
424B3
Form 424B3 -- Prospectus [Rule 424(b)(3)]
01/08/2007
424B3
Form 424B3 -- Prospectus [Rule 424(b)(3)]
02/14/2005
424B3
Form 424B3 -- Prospectus [Rule 424(b)(3)]
07/03/2003
424B5
Form 424B5 -- Prospectus [Rule 424(b)(5)]
06/30/2003
424B5
Form 424B5 -- Prospectus [Rule 424(b)(5)]
05/09/2003
424B3
Form 424B3 -- Prospectus [Rule 424(b)(3)]
11/19/2002
424B3
Form 424B3 -- Prospectus [Rule 424(b)(3)]
12/28/2001
424B3
Form 424B3 -- Prospectus [Rule 424(b)(3)]
11/13/2001
424B5
Form 424B5 -- Prospectus [Rule 424(b)(5)]
10/25/2001
424B5
Form 424B5 -- Prospectus [Rule 424(b)(5)]
05/02/2000
424B3
Form 424B3 -- Prospectus [Rule 424(b)(3)]
02/04/2000
424B3
Form 424B3 -- Prospectus [Rule 424(b)(3)]
07/01/1997
424B3
Form 424B3 -- Prospectus [Rule 424(b)(3)]
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