
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
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|---|---|---|---|
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KEL | PK | Electricity, gas, steam and air… |
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KEPCO Plant Service & Engineering Co., Ltd
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051600 | KR | Electricity, gas, steam and air… |
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KOREA ELECTRIC POWER CORP
An integrated utility for electricity generation, transmiss…
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KEP | US | Electricity, gas, steam and air… |
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KOREA ELECTRIC POWER CORPORATION
An integrated electric utility that generates, transmits, a…
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015760 | KR | Electricity, gas, steam and air… |
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Korea Electronic Power Industrial Development Co., Ltd
Provides O&M for power generation facilities and electricit…
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130660 | KR | Electricity, gas, steam and air… |
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Krasnoyarsk Energosbyt
Trades electric energy on wholesale and retail markets and …
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KRSB | RU | Electricity, gas, steam and air… |
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Kyushu Electric Power Company, Incorporated
Electric utility engaged in the generation, transmission, a…
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9508 | JP | Electricity, gas, steam and air… |
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KYUSHU ELECTRIC POWER COMPANY, INCORPORATED
Generates, transmits, distributes, and retails electricity;…
|
8H0B | SG | Electricity, gas, steam and air… |
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Lechwerke AG
Regional energy supplier of electricity, gas, heating, wate…
|
LEC | DE | Electricity, gas, steam and air… |
|
LIGHT S.A. - EM RECUPERAÇÃO JUDICIAL
Integrated electricity utility in Rio de Janeiro under judi…
|
— | BR | 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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