# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000352541-21-000056
Filing Date
2021-05-07
Accepted
2021-05-07 11:37:43
Documents
91
Period of Report
2021-03-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | lnt-20210331.htm iXBRL | 10-Q | 2326706
2 | CERTIFICATION OF THE CEO FOR ALLIANT ENERGY | lnt331202110-qex311.htm | EX-31.1 | 9455
3 | CERTIFICATION OF THE CFO FOR ALLIANT ENERGY | lnt331202110-qex312.htm | EX-31.2 | 9466
4 | CERTIFICATION OF THE CEO FOR IPL | lnt331202110-qex313.htm | EX-31.3 | 9449
5 | CERTIFICATION OF THE CFO FOR IPL | lnt331202110-qex314.htm | EX-31.4 | 9722
6 | CERTIFICATION OF THE CEO FOR WPL | lnt331202110-qex315.htm | EX-31.5 | 9500
7 | CERTIFICATION OF THE CFO FOR WPL | lnt331202110-qex316.htm | EX-31.6 | 9469
8 | WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR ALLIANT ENERGY | lnt331202110-qex321.htm | EX-32.1 | 4413
9 | WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR IPL | lnt331202110-qex322.htm | EX-32.2 | 4399
10 | WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR WPL | lnt331202110-qex323.htm | EX-32.3 | 4527
16 | GRAPHIC | lnt-20210331_g1.jpg | GRAPHIC | 319349
17 | GRAPHIC | lnt-20210331_g2.jpg | GRAPHIC | 14961
18 | GRAPHIC | lnt-20210331_g3.jpg | GRAPHIC | 11773
19 | GRAPHIC | lnt-20210331_g4.jpg | GRAPHIC | 11907
| Complete submission text file | 0000352541-21-000056.txt |  | 16106713

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
11 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | lnt-20210331.xsd | EX-101.SCH | 57524
12 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | lnt-20210331_cal.xml | EX-101.CAL | 89773
13 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | lnt-20210331_def.xml | EX-101.DEF | 618892
14 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | lnt-20210331_lab.xml | EX-101.LAB | 626355
15 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | lnt-20210331_pre.xml | EX-101.PRE | 635287
20 | EXTRACTED XBRL INSTANCE DOCUMENT | lnt-20210331_htm.xml | XML | 4661099

Mailing Address 200 FIRST ST SE ALLIANT ENERGY TOWER CEDAR RAPIDS IA 52401
Business Address 200 FIRST ST SE ALLIANT ENERGY TOWER CEDAR RAPIDS IA 52401 3193984411
INTERSTATE POWER & LIGHT CO (Filer) CIK: 0000052485 (see all company filings)

EIN.: 420331370 | State of Incorp.: IA | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-04117 | Film No.: 21901124
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 N BILTMORE LANE SUITE 1000 MADISON WI 53718-2148
Business Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148 608-458-3311
WISCONSIN POWER & LIGHT CO (Filer) CIK: 0000107832 (see all company filings)

EIN.: 390714890 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 000-00337 | Film No.: 21901123
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148
Business Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148 608-458-3311
ALLIANT ENERGY CORP (Filer) CIK: 0000352541 (see all company filings)

EIN.: 391380265 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-09894 | Film No.: 21901122
SIC: 4931 Electric & Other Services Combined