ALLIANT ENERGY CORP — 10-K405 Filings
5 10-K405 filings on record
This page lists all 10-K405 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 5 10-K405 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 |
|---|---|---|---|---|
| 10-K405 | 10-K405 | 0000107832-02-000027 | Mar 27, 2002 | Dec 31, 2001 |
| 10-K405 | 10-K 405 | 0000107832-01-500009 | Mar 29, 2001 | Dec 31, 2000 |
| 10-K405 | — | 0000897069-98-000229 | Apr 15, 1998 | Dec 31, 1997 |
| 10-K405 | FORM 10-K WPL HOLDINGS, INC. AND WISCONSIN POWER AND LIGHT | 0000897069-97-000126 | Mar 19, 1997 | Dec 31, 1996 |
| 10-K405 | WPL HOLDINGS, INC. FORM 10-K | 0000897069-96-000074 | Mar 29, 1996 | Dec 31, 1995 |