ALLIANT ENERGY CORP — Investor Relations & Filings
Alliant Energy Corporation is a public utility holding company providing regulated energy services. Its core activities include the generation and distribution of electricity and the distribution of natural gas. The company serves approximately one million electric and 425,000 natural gas customers, primarily in Iowa and Wisconsin. Alliant Energy emphasizes a balanced energy mix and is a significant owner-operator of regulated wind and solar assets. The company's mission is to deliver energy solutions and services safely, efficiently, and responsibly to its customers and communities.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 10-Q - ALLIANT ENERGY CORP (0000352541) (Filer) | 2026-05-01 | English | |
| SCHEDULE 13G/A - ALLIANT ENERGY CORP (0000352541) (Subject) | 2026-03-26 | English | |
| 8-K - ALLIANT ENERGY CORP (0000352541) (Filer) | 2026-03-19 | English | |
| 424B5 - ALLIANT ENERGY CORP (0000352541) (Filer) | 2026-03-19 | English | |
| 4/A - ALLIANT ENERGY CORP (0000352541) (Issuer) | 2026-03-19 | English | |
| 4 - ALLIANT ENERGY CORP (0000352541) (Filer) | 2026-02-24 | English |
Market data
Market data not available
Price history
Peer group · Electric power transmission and distribution activities
| Company | Ticker | Country | Sector |
|---|---|---|---|
|
Abu Dhabi National Energy Co PJSC
Diversified energy and utilities group providing power, wat…
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TAQA | AE | Electricity, gas, steam and air… |
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Adani Energy Solutions Limited
Private utility specializing in power transmission, distrib…
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ADANIENSOL | IN | Electricity, gas, steam and air… |
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Admie (IPTO) Holding S.A.
Holding company for the operator of the national electricit…
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ADMIE | GR | Electricity, gas, steam and air… |
|
AES CORP
A global power company that generates and distributes elect…
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AES | US | Electricity, gas, steam and air… |
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AFLUENTE TRANSMISSÃO DE ENERGIA ELETRICA S/A
Manages over 6,000 km of high-voltage power transmission in…
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— | BR | Electricity, gas, steam and air… |
|
ALLETE INC
An energy company with regulated utilities and investments …
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ALE | US | Electricity, gas, steam and air… |
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ALUPAR INVESTIMENTO S/A
Private energy infrastructure holding focused on transmissi…
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— | BR | Electricity, gas, steam and air… |
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AMEREN CORP
A public utility providing electricity and natural gas in M…
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AEE | US | Electricity, gas, steam and air… |
|
AMERICAN ELECTRIC POWER CO INC
Generates, transmits, and distributes electricity to over f…
|
AEP | US | Electricity, gas, steam and air… |
|
AMPLA ENERGIA E SERVIÇOS S.A.
Distributes and generates electric power across Rio de Jane…
|
— | BR | Electricity, gas, steam and air… |
ALLIANT ENERGY CORP via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/30351/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=30351 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=30351 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=30351 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 30351}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for ALLIANT ENERGY CORP (id: 30351)"
Report missing filing
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