A. GENERAL Alliant Energy maintains its principal executive offices in Madison, Wisconsin. Alliant Energy operates as a regulated investor-owned public utility holding company, and its purpose-driven strategy is to serve its customers and build stronger communities. Alliant Energys primary focus is to provide regulated electric and natural gas service to approximately 1,010,000 electric and approximately 435,000 natural gas customers in the Midwest through its two public utility subsidiaries, IP...
Q2 FY2026 — expected 2026-09-14
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-02-20 | 2025-12-31 | 0000352541-26-000007 | EDGAR | 88K words |
| 2025-02-21 | 2024-12-31 | 0000352541-25-000014 | EDGAR | — |
| 2024-02-16 | 2023-12-31 | 0000352541-24-000014 | EDGAR | — |
| 2023-02-24 | 2022-12-31 | 0000352541-23-000017 | EDGAR | — |
| 2022-02-18 | 2021-12-31 | 0000352541-22-000020 | EDGAR | — |
| 2021-02-19 | 2020-12-31 | 0000352541-21-000022 | EDGAR | — |
| 2020-02-21 | 2019-12-31 | 0000352541-20-000021 | EDGAR | — |
| 2019-02-22 | 2018-12-31 | 0000352541-19-000013 | EDGAR | — |
| 2018-02-23 | 2017-12-31 | 0000352541-18-000019 | EDGAR | — |
| 2017-02-24 | 2016-12-31 | 0000352541-17-000017 | EDGAR | — |
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2025-11-07 | 2025-09-30 | 0000352541-25-000081 | EDGAR | 30K words |
| 2025-08-08 | 2025-06-30 | 0000352541-25-000072 | EDGAR | — |
| 2025-05-09 | 2025-03-31 | 0000352541-25-000053 | EDGAR | — |
| 2024-11-01 | 2024-09-30 | 0000352541-24-000104 | EDGAR | — |
| 2024-08-02 | 2024-06-30 | 0000352541-24-000089 | EDGAR | — |
| 2024-05-03 | 2024-03-31 | 0000352541-24-000058 | EDGAR | — |
| 2023-11-03 | 2023-09-30 | 0000352541-23-000108 | EDGAR | — |
| 2023-08-04 | 2023-06-30 | 0000352541-23-000091 | EDGAR | — |
| 2023-05-05 | 2023-03-31 | 0000352541-23-000059 | EDGAR | — |
| 2022-11-08 | 2022-09-30 | 0000352541-22-000082 | EDGAR | — |
| 2022-08-05 | 2022-06-30 | 0000352541-22-000075 | EDGAR | — |
| 2022-04-29 | 2022-03-31 | 0000352541-22-000058 | EDGAR | — |
| Filed | Accession | Source | Full Text |
|---|---|---|---|
| 2026-03-19 | 0001193125-26-116244 | EDGAR | 49K words |
| 2026-03-04 | 0000352541-26-000009 | EDGAR | — |
| 2026-02-20 | 0000352541-26-000005 | EDGAR | — |
| 2026-01-08 | 0000352541-26-000003 | EDGAR | — |
| 2025-12-16 | 0000352541-25-000089 | EDGAR | — |
| 2025-12-05 | 0000352541-25-000085 | EDGAR | — |
| 2025-11-07 | 0000352541-25-000079 | EDGAR | — |
| 2025-09-26 | 0000352541-25-000076 | EDGAR | — |
| 2025-09-11 | 0000352541-25-000074 | EDGAR | — |
| 2025-08-08 | 0000352541-25-000070 | EDGAR | — |
227 total filings indexed. 195 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR
| CIK | 0000352541 |
| Ticker | LNT |
| Exchange | Nasdaq |
| SIC | 4931: Electric & Other Services Combined |
| Incorporated | WI |
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