Form 8-K - Current report:
SEC Accession No. 0000352541-25-000070
Filing Date
2025-08-08
Accepted
2025-08-07 18:03:23
Documents
15
Period of Report
2025-08-07
Items
Item 2.02: Results of Operations and Financial Condition
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 8-K lnt-20250807.htm   iXBRL 8-K 30088
2 EX-99.1 lnt080720258-kex991.htm EX-99.1 317886
7 GRAPHIC alliantenergylogoa.jpg GRAPHIC 408716
  Complete submission text file 0000352541-25-000070.txt   1101459

Data Files

Seq Description Document Type Size
3 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT lnt-20250807.xsd EX-101.SCH 2713
4 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT lnt-20250807_def.xml EX-101.DEF 15121
5 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT lnt-20250807_lab.xml EX-101.LAB 27071
6 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT lnt-20250807_pre.xml EX-101.PRE 15846
17 EXTRACTED XBRL INSTANCE DOCUMENT lnt-20250807_htm.xml XML 6068
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: 8-K | Act: 34 | File No.: 001-04117 | Film No.: 251195627
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: 8-K | Act: 34 | File No.: 000-00337 | Film No.: 251195628
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: 8-K | Act: 34 | File No.: 001-09894 | Film No.: 251195626
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)