ALLIANT ENERGY CORP — 4/A Filings
44 4/A filings on record
This page lists all 4/A 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 44 4/A 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 |
|---|---|---|---|---|
| 4/A | FORM 4/A | 0002105470-26-000005 | Mar 19, 2026 | Feb 19, 2026 |
| 4/A | FORM 4/A | 0000352541-21-000039 | Mar 4, 2021 | Mar 1, 2021 |
| 4/A | FORM 4/A | 0000352541-21-000038 | Mar 4, 2021 | Mar 1, 2021 |
| 4/A | FORM 4/A | 0000352541-21-000037 | Mar 4, 2021 | Mar 1, 2021 |
| 4/A | FORM 4/A | 0000352541-21-000036 | Mar 4, 2021 | Mar 1, 2021 |
| 4/A | FORM 4/A | 0000352541-21-000035 | Mar 4, 2021 | Mar 1, 2021 |
| 4/A | FORM 4/A | 0000352541-16-000086 | Mar 15, 2016 | Feb 22, 2016 |
| 4/A | FORM 4/A | 0000352541-16-000084 | Mar 15, 2016 | Feb 22, 2016 |
| 4/A | PRIMARY DOCUMENT | 0001127602-15-014962 | Apr 22, 2015 | Apr 10, 2015 |
| 4/A | PRIMARY DOCUMENT | 0001127602-15-014961 | Apr 22, 2015 | Apr 10, 2015 |
| 4/A | PRIMARY DOCUMENT | 0001127602-15-014959 | Apr 22, 2015 | Apr 10, 2015 |
| 4/A | PRIMARY DOCUMENT | 0001127602-15-014956 | Apr 22, 2015 | Apr 10, 2015 |
| 4/A | PRIMARY DOCUMENT | 0001127602-15-014954 | Apr 22, 2015 | Apr 10, 2015 |
| 4/A | PRIMARY DOCUMENT | 0001127602-15-014950 | Apr 22, 2015 | Apr 10, 2015 |
| 4/A | PRIMARY DOCUMENT | 0001127602-12-008626 | Feb 29, 2012 | Feb 21, 2012 |
| 4/A | PRIMARY DOCUMENT | 0001127602-12-008625 | Feb 29, 2012 | Feb 15, 2012 |
| 4/A | PRIMARY DOCUMENT | 0001127602-12-001923 | Jan 18, 2012 | Jan 12, 2012 |
| 4/A | PRIMARY DOCUMENT | 0001127602-10-022902 | Sep 13, 2010 | May 12, 2010 |
| 4/A | PRIMARY DOCUMENT | 0001127602-10-022898 | Sep 13, 2010 | May 12, 2010 |
| 4/A | PRIMARY DOCUMENT | 0000107832-07-000139 | Aug 30, 2007 | Aug 17, 2007 |
| 4/A | PRIMARY DOCUMENT | 0000107832-07-000138 | Aug 30, 2007 | Jun 5, 2007 |
| 4/A | PRIMARY DOCUMENT | 0000107832-07-000137 | Aug 30, 2007 | May 18, 2007 |
| 4/A | PRIMARY DOCUMENT | 0000107832-07-000136 | Aug 30, 2007 | Feb 16, 2007 |
| 4/A | PRIMARY DOCUMENT | 0000107832-07-000135 | Aug 30, 2007 | Jan 24, 2007 |
| 4/A | PRIMARY DOCUMENT | 0000107832-07-000070 | Mar 27, 2007 | Mar 12, 2007 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000192 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000191 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000190 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000189 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000188 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000187 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000186 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000185 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000184 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000183 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000182 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000181 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000180 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000179 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-06-000178 | Dec 1, 2006 | Nov 16, 2006 |
| 4/A | PRIMARY DOCUMENT | 0000107832-04-000168 | Jun 18, 2004 | Jan 19, 2004 |
| 4/A | PRIMARY DOCUMENT | 0000107832-04-000091 | Feb 25, 2004 | Feb 17, 2004 |
| 4/A | PRIMARY DOCUMENT | 0000107832-03-000179 | Nov 24, 2003 | Nov 19, 2003 |
| 4/A | PRIMARY DOCUMENT | 0000107832-03-000178 | Nov 24, 2003 | Nov 19, 2003 |