Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000352541-25-000014
Filing Date
2025-02-21
Accepted
2025-02-21 16:46:26
Documents
167
Period of Report
2024-12-31

Document Format Files

Seq Description Document Type Size
1 10-K lnt-20241231.htm   iXBRL 10-K 5663470
2 FORM OF PERFORMANCE SHARE AGREEMENT lnt1231202410-kex102f.htm EX-10.2F 82375
3 FORM OF RESTRICTED STOCK UNIT AGREEMENT lnt1231202410-kex102g.htm EX-10.2G 46895
4 AMENDED AND RESTATED DEFERRED COMPENSATION PLAN lnt1231202410-kex103.htm EX-10.3 156141
5 TERMS OF EXECUTIVE SHORT-TERM INCENTIVE PLAN lnt1231202410-kex1011.htm EX-10.11 25626
6 SUMMARY OF COMPENSATION AND BENEFITS FOR NON-EMPLOYEE DIRECTORS lnt1231202410-kex1014.htm EX-10.14 6993
7 INSIDER TRADING POLICIES AND PROCEDURES lnt1231202410-kex19.htm EX-19 50108
8 SUBSIDIARIES OF ALLIANT ENERGY lnt1231202410-kex211.htm EX-21.1 3929
9 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR ALLIANT ENERGY lnt1231202410-kex231.htm EX-23.1 2292
10 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR IPL lnt1231202410-kex232.htm EX-23.2 2049
11 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR WPL lnt1231202410-kex233.htm EX-23.3 2047
12 CERTIFICATION OF THE CEO FOR ALLIANT ENERGY lnt1231202410-kex311.htm EX-31.1 9386
13 CERTIFICATION OF THE CFO FOR ALLIANT ENERGY lnt1231202410-kex312.htm EX-31.2 9407
14 CERTIFICATION OF THE CEO FOR IPL lnt1231202410-kex313.htm EX-31.3 9379
15 CERTIFICATION OF THE CFO FOR IPL lnt1231202410-kex314.htm EX-31.4 9412
16 CERTIFICATION OF THE CEO FOR WPL lnt1231202410-kex315.htm EX-31.5 9364
17 CERTIFICATION OF THE CFO FOR WPL lnt1231202410-kex316.htm EX-31.6 9410
18 WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR ALLIANT ENERGY lnt1231202410-kex321.htm EX-32.1 4360
19 WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR IPL lnt1231202410-kex322.htm EX-32.2 4343
20 WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR WPL lnt1231202410-kex323.htm EX-32.3 4342
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31 GRAPHIC lnt-20241231_g6.jpg GRAPHIC 15175
32 GRAPHIC lnt-20241231_g7.jpg GRAPHIC 12901
33 GRAPHIC lnt-20241231_g8.jpg GRAPHIC 12547
  Complete submission text file 0000352541-25-000014.txt   44963423

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169 EXTRACTED XBRL INSTANCE DOCUMENT lnt-20241231_htm.xml XML 15084623
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-K | Act: 34 | File No.: 001-04117 | Film No.: 25652694
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-K | Act: 34 | File No.: 000-00337 | Film No.: 25652695
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-K | Act: 34 | File No.: 001-09894 | Film No.: 25652693
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)