ALLIANT ENERGY CORP — DEF 14A Filings
31 DEF 14A filings on record
This page lists all DEF 14A filings submitted to the SEC by ALLIANT ENERGY CORP (LNT), sorted by most recent first. Each row links to the full filing on EdgarLookup. ALLIANT ENERGY CORP has filed 31 DEF 14A documents with the SEC since 2013. To view all SEC filings by ALLIANT ENERGY CORP, see the full filings list.
All
10-K
10-K/A
10-K405
10-K405/A
10-Q
10-Q/A
11-K
15-15D
25
3
3/A
35-CERT
35-CERT/A
4
4/A
424B2
424B3
424B5
5
5/A
8-A12B
8-A12B/A
8-K
8-K/A
ARS
CERT
CORRESP
CT ORDER
DEF 14A
DEFA14A
FWP
NO ACT
NT 10-K
NT 11-K
POS AMC
POSASR
PRE 14A
PX14A6G
RW
S-3
S-3/A
S-3ASR
S-3D
S-3MEF
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G/A
SE
U-1
U-1/A
U-12-IB
U-13-60
U-57
U-6B-2
U-6B-2/A
U-9C-3
U5A
U5B
U5B/A
U5S
U5S/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEF 14A | DEF 14A | 0000352541-25-000036 | Apr 1, 2025 | May 16, 2025 |
| DEF 14A | DEF 14A | 0000352541-24-000038 | Apr 2, 2024 | May 17, 2024 |
| DEF 14A | DEF 14A | 0000352541-23-000042 | Apr 4, 2023 | — |
| DEF 14A | DEF 14A | 0000352541-22-000041 | Mar 31, 2022 | May 19, 2022 |
| DEF 14A | DEF 14A | 0000352541-21-000043 | Apr 1, 2021 | May 20, 2021 |
| DEF 14A | DEF 14A | 0000352541-20-000047 | Apr 9, 2020 | May 21, 2020 |
| DEF 14A | DEF 14A | 0000352541-19-000044 | Apr 8, 2019 | May 16, 2019 |
| DEF 14A | DEF 14A | 0000352541-18-000038 | Apr 9, 2018 | May 17, 2018 |
| DEF 14A | DEF 14A | 0000352541-17-000043 | Apr 18, 2017 | May 23, 2017 |
| DEF 14A | DEF 14A | 0000352541-16-000091 | Mar 31, 2016 | May 13, 2016 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-15-101981 | Mar 24, 2015 | May 7, 2015 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-14-128295 | Apr 3, 2014 | May 13, 2014 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-13-138884 | Apr 3, 2013 | May 9, 2013 |
| DEF 14A | DEF 14A | 0001193125-12-146445 | Apr 3, 2012 | May 17, 2012 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-11-081520 | Mar 30, 2011 | May 10, 2011 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-10-073830 | Apr 1, 2010 | May 20, 2010 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-09-070857 | Apr 2, 2009 | May 14, 2009 |
| DEF 14A | NOTICE & PROXY | 0001193125-08-073519 | Apr 3, 2008 | May 15, 2008 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-07-067629 | Mar 29, 2007 | May 10, 2007 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-06-073077 | Apr 5, 2006 | May 12, 2006 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001193125-05-071444 | Apr 7, 2005 | May 19, 2005 |
| DEF 14A | DEFINATIVE SCHEDULE 14A | 0001193125-04-057124 | Apr 5, 2004 | May 21, 2004 |
| DEF 14A | NOTICE & PROXY STATEMENT | 0000950131-03-002082 | Apr 11, 2003 | May 28, 2003 |
| DEF 14A | NOTICE AND PROXY STATEMENT | 0000950131-02-001367 | Apr 3, 2002 | May 15, 2002 |
| DEF 14A | DEF 14A | 0000912057-01-506686 | Apr 3, 2001 | May 23, 2001 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0000107832-00-000020 | Mar 27, 2000 | May 17, 2000 |
| DEF 14A | IEC DEFINITIVE PROXY STATEMENT | 0000897069-99-000167 | Mar 29, 1999 | May 19, 1999 |
| DEF 14A | DEF 14A | 0001047469-98-021861 | May 27, 1998 | Jun 24, 1998 |
| DEF 14A | NOTICE & PROXY STATEMENT | 0000950131-97-001770 | Mar 13, 1997 | Apr 23, 1997 |
| DEF 14A | DEF 14A | 0000950124-95-000863 | Mar 27, 1995 | May 17, 1995 |
| DEF 14A | NOTICE AND PROXY STATEMENT | 0000912057-94-001095 | Mar 29, 1994 | May 18, 1994 |