Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000352541-25-000081
Filing Date
2025-11-07
Accepted
2025-11-07 12:02:34
Documents
99
Period of Report
2025-09-30

Document Format Files

Seq Description Document Type Size
1 10-Q lnt-20250930.htm   iXBRL 10-Q 2723857
2 CERTIFICATION OF THE CEO FOR ALLIANT ENERGY lnt930202510-qex311.htm EX-31.1 9359
3 CERTIFICATION OF THE CFO FOR ALLIANT ENERGY lnt930202510-qex312.htm EX-31.2 9405
4 CERTIFICATION OF THE CEO FOR IPL lnt930202510-qex313.htm EX-31.3 9350
5 CERTIFICATION OF THE CFO FOR IPL lnt930202510-qex314.htm EX-31.4 9385
6 CERTIFICATION OF THE CEO FOR WPL lnt930202510-qex315.htm EX-31.5 9401
7 CERTIFICATION OF THE CFO FOR WPL lnt930202510-qex316.htm EX-31.6 9646
8 WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR ALLIANT ENERGY lnt930202510-qex321.htm EX-32.1 4359
9 WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR IPL lnt930202510-qex322.htm EX-32.2 4315
10 WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR WPL lnt930202510-qex323.htm EX-32.3 4443
16 GRAPHIC lnt-20250930_g1.jpg GRAPHIC 319349
17 GRAPHIC lnt-20250930_g2.jpg GRAPHIC 15280
18 GRAPHIC lnt-20250930_g3.jpg GRAPHIC 11227
19 GRAPHIC lnt-20250930_g4.jpg GRAPHIC 12721
  Complete submission text file 0000352541-25-000081.txt   21688543

Data Files

Seq Description Document Type Size
11 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT lnt-20250930.xsd EX-101.SCH 61868
12 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT lnt-20250930_cal.xml EX-101.CAL 62170
13 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT lnt-20250930_def.xml EX-101.DEF 655753
14 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT lnt-20250930_lab.xml EX-101.LAB 738751
15 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT lnt-20250930_pre.xml EX-101.PRE 733264
101 EXTRACTED XBRL INSTANCE DOCUMENT lnt-20250930_htm.xml XML 6775105
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.: 251461400
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)

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.: 251461401
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)

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.: 251461399
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)