# ALLIANT ENERGY CORP — DEF 14A

ALLIANT ENERGY CORP of MADISON, WI filed a DEF 14A with the SEC on 2022-03-31. Industry: Electric & Other Services Combined.

## Filing

- Filed: 2022-03-31
- Form: DEF 14A
- Accession: 0000352541-22-000041
- Registrant: ALLIANT ENERGY CORP
- CIK: 0000352541
- Industry (SIC): Electric & Other Services Combined (4931)
- State of incorporation: WI
- Location: MADISON, WI

## Documents (29)

_Showing 15 of 29 documents._

| Seq | Type | Description |
| --- | --- | --- |
| 1 | DEF 14A | DEF 14A |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |
| 4 | GRAPHIC | GRAPHIC |
| 5 | GRAPHIC | GRAPHIC |
| 6 | GRAPHIC | GRAPHIC |
| 7 | GRAPHIC | GRAPHIC |
| 8 | GRAPHIC | GRAPHIC |
| 9 | GRAPHIC | GRAPHIC |
| 10 | GRAPHIC | GRAPHIC |
| 11 | GRAPHIC | GRAPHIC |
| 12 | GRAPHIC | GRAPHIC |
| 13 | GRAPHIC | GRAPHIC |
| 14 | GRAPHIC | GRAPHIC |
| 15 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (57)

_Showing 12 of 57 filings._

| Filed | Form |
| --- | --- |
| [2026-03-31](https://search.stillhousedata.com/proxy/0000352541-26-000026) | DEFA14A |
| [2026-03-31](https://search.stillhousedata.com/proxy/0000352541-26-000025) | DEF 14A |
| [2025-04-01](https://search.stillhousedata.com/proxy/0000352541-25-000037) | DEFA14A |
| [2025-04-01](https://search.stillhousedata.com/proxy/0000352541-25-000036) | DEF 14A |
| [2024-04-02](https://search.stillhousedata.com/proxy/0000352541-24-000039) | DEFA14A |
| [2024-04-02](https://search.stillhousedata.com/proxy/0000352541-24-000038) | DEF 14A |
| [2023-04-04](https://search.stillhousedata.com/proxy/0000352541-23-000044) | DEFA14A |
| [2023-04-04](https://search.stillhousedata.com/proxy/0000352541-23-000042) | DEF 14A |
| [2022-03-31](https://search.stillhousedata.com/proxy/0000352541-22-000043) | DEFA14A |
| 2022-03-31 | DEF 14A |
| [2021-04-01](https://search.stillhousedata.com/proxy/0000352541-21-000045) | DEFA14A |
| [2021-04-01](https://search.stillhousedata.com/proxy/0000352541-21-000043) | DEF 14A |

## More

- [CIK 352541 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=352541&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0000352541-22-000041.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.