CMS ENERGY CORP — Investor Relations & Filings
CMS Energy Corporation is an energy company operating primarily through its principal subsidiary, Consumers Energy, Michigan's largest combined electric and natural gas utility. Consumers Energy serves more than 6 million Michigan residents, providing electricity and natural gas services. The company's operations encompass the generation, purchase, transmission, distribution, and sale of energy. It produces power from a diverse portfolio of sources, including natural gas, coal, wind, solar, and hydroelectric power. A key strategic focus for the company is its clean energy plan, which includes goals to eliminate coal from its generation fleet and achieve net-zero methane emissions from its natural gas delivery system.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 8-K - CMS ENERGY CORP (0000811156) (Filer) | 2026-05-13 | English | |
| 424B5 - CMS ENERGY CORP (0000811156) (Filer) | 2026-05-13 | English | |
| Major Shareholding Notification 2026 | 2026-04-29 | English | |
| Major Shareholding Notification 2026 | 2026-04-29 | English | |
| 8-K - CMS ENERGY CORP (0000811156) (Filer) | 2026-04-28 | English | |
| DEFA14A | 2026-04-01 | English |
Browse filings by year
17 yearsMarket data
Market data not available
Price history
Peer group · Electric power transmission and distribution activities
| Company | Ticker | Country | Sector |
|---|---|---|---|
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RED | ES | Electricity, gas, steam and air… |
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REN-Redes Energeticas Nacionais
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RN4 | PT | Electricity, gas, steam and air… |
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REPONO LIMITED
Develops and manages battery energy storage systems for gri…
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544463 | IN | Electricity, gas, steam and air… |
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Romande Energie Holding SA
Energy services company providing electricity, thermal ener…
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HREN | CH | Electricity, gas, steam and air… |
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Rosseti Centre
Electric distribution grid company serving over 13 million …
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MRKC | RU | Electricity, gas, steam and air… |
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Rosseti Centr i Privoljye
Electric utility providing power transmission and distribut…
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MRKP | RU | Electricity, gas, steam and air… |
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Rosseti Moscow Region
Electric utility specializing in power transmission and dis…
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MSRS | RU | Electricity, gas, steam and air… |
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Rosseti Volga
An electric power distribution company that transmits elect…
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MRKV | RU | Electricity, gas, steam and air… |
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Sakhalinenergo
Produces, transmits, and sells electrical energy to consume…
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SLEN | RU | Electricity, gas, steam and air… |
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SamaraEnergo ao
An energy sales company and guaranteeing supplier of electr…
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SAGO_p | RU | Electricity, gas, steam and air… |
CMS 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/30260/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=30260 | 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=30260 | 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=30260 \ -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": 30260}, 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 CMS ENERGY CORP (id: 30260)"
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