Welcome to our dedicated page for Ameren Illinois SEC filings (Ticker: AILLP), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
we're ameren corporation (aee), a st. louis-based, fortune 500 company that powers the quality of life for millions of people throughout illinois and missouri. ameren illinois provides electric distribution and transmission service, as well as natural gas distribution service, while ameren missouri provides vertically integrated electric service, with generating capacity of over 10,200 megawatts, and natural gas distribution service. combined, we serve 2.4 million electric and more than 900,000 natural gas customers in a 64,000 square mile area. we're the largest electric utility in missouri and the second largest in illinois, and we're among the nation's largest investor-owned electric or gas utility.Ameren Illinois Company is furnishing a definitive Information Statement for a virtual Annual Meeting of Shareholders to be held on May 14, 2026 at 10 a.m. CDT. Shareholders of record as of March 16, 2026 may vote; Ameren (the parent) holds all outstanding common stock and intends to cast votes to elect five directors.
The statement describes director nominees (five incumbent officers), governance practices, committee assignments, related person transaction policies, insider trading rules, and executive compensation with 2025 incentive outcomes (short-term incentive payouts above target and PSU vesting results for 2023-2025 performance periods).
Ameren Corporation files a combined annual report describing its rate-regulated electric and natural gas utilities in Missouri and Illinois and transmission subsidiary ATXI. The company operates through four segments: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission.
The report explains how state commissions and FERC set rates, including allowed ROEs such as 8.72% for Ameren Illinois electric distribution and 10.48% for certain transmission service. It outlines long-term plans to add natural gas, renewable, battery storage, and nuclear generation, retire coal plants by 2042, meet renewable and zero-emission standards, manage fuel and hedging, and oversee workforce, safety, and cybersecurity risks.