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37/100BAmeren company profile
- CEO
- Martin J. Lyons Jr.
- Employees
- 8,913
- Headquarters
- 1901 Chouteau Avenue, Saint Louis, MO 63103, US
- Sector
- Utilities
- Industry
- Regulated Electric
- IPO date
- 2 Jan 1998
- Stock exchange
- NYSE
- ISIN
- US0236081024
Website:amereninvestors.com
About the company
Operating across the United States, Ameren Corporation functions as a utility holding company. The enterprise organizes its operations into four primary divisions: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. Its fundamental business involves the rate-regulated production, transmission, and supply of electricity, in addition to the rate-regulated distribution and transmission of natural gas. Ameren generates power using a variety of sources, including coal, nuclear energy, and natural gas, supplemented by renewable alternatives such as hydroelectric, wind, methane gas, and solar. Its customer base encompasses residential homes, commercial businesses, and industrial operations. Established in 1881, Ameren Corporation is headquartered in St. Louis, Missouri.
Employees
Ameren had about 8,913 employees at the end of fiscal year 2025 (31 December 2025), by its annual report. That is 0.8% fewer than a year before.
Employees at each fiscal year end, as the company reports them in its annual report (10-K); revenue and net income per employee are the fiscal year's over that count.
Who owns Ameren
Institutions such as funds, banks and insurers held 89.3% of Ameren's shares on 30 June 2026, 965 of them reporting holdings to the SEC; the rest is held by individual investors and other shareholders.
Shares free to trade
Closely held shares belong to insiders, founders and owners of more than 5%, and seldom change hands. The free float is the rest: the shares anyone can buy and sell.
Common questions about Ameren
Source: Financial Modeling Prep