Welcome to our dedicated page for Ameren SEC filings (Ticker: AEE), 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.
The Ameren Corporation (NYSE: AEE) SEC filings page provides direct access to the company’s regulatory disclosures as a St. Louis-based electric and natural gas utility holding company. Ameren files a range of documents with the U.S. Securities and Exchange Commission that explain how it serves approximately 2.5 million electric and more than 900,000 natural gas customers in Missouri and Illinois through Ameren Missouri, Ameren Illinois and Ameren Transmission Company of Illinois.
Investors can review Form 8-K current reports that detail material events such as amendments to multi-year, senior unsecured revolving credit agreements, issuance of long-term debt by Ameren Illinois, changes in executive leadership, board appointments and regulatory decisions affecting Ameren Missouri’s large load customer rate plan. Earnings-related 8-K filings incorporate press releases and unaudited consolidated financial statements, including statements of income, balance sheets and cash flow statements for recent periods.
Ameren’s filings also describe its equity distribution program, under which the company may sell common stock through designated sales agents and forward purchasers, as well as legal opinions related to securities offerings. Credit agreement filings outline facility sizes, maturity dates, borrowing limits, letter of credit subfacilities, interest rate options and financial covenants such as consolidated debt ratio limits for Ameren and its utility subsidiaries.
On this page, AI-powered tools can summarize lengthy filings, highlight key terms and translate technical language into more accessible explanations. Users can quickly identify how regulatory orders, financing transactions, earnings results and governance changes are reflected in Ameren’s official record. For those tracking Ameren’s capital structure, liquidity, rate-regulated business model or risk disclosures, the SEC filings page offers real-time updates from EDGAR, organized so that quarterly and annual reports, current reports and exhibits are easier to interpret.
Ameren Illinois Company sold $350 million principal amount of its 5.625% First Mortgage Bonds due 2055, a further issuance of bonds originally issued on March 3, 2025 in the same principal amount. The bonds were offered under an effective shelf registration on Form S-3 with a related prospectus and September 15, 2025 prospectus supplement. Ameren Illinois received approximately $358.1 million in net offering proceeds before expenses from this transaction. The report also files the underwriting agreement, indenture documents, and legal opinions related to the bond offering as exhibits.
Mark C. Lindgren, Executive Vice President and Chief HR Officer of a subsidiary of Ameren Corporation (AEE), reported a sale and current holdings in a Form 4 filing. On 09/12/2025 he sold 3,500 shares of Ameren common stock at $100.89 per share. After the transaction he beneficially owns 42,574 shares, which includes an estimated 1,701 share equivalents in the Ameren Savings Investment Plan as of August 31, 2025, and 48 accrued dividend equivalents from reinvested restricted stock units. The Form 4 was signed by an attorney-in-fact on 09/15/2025. The filing discloses the sale, the composition of holdings, and that dividend reinvestment affected the reported balance.
Ameren Corporation insider transaction reported for reporting person Gwendolyn G. Mizell. The Form 4 shows a sale of 1,500 shares of Ameren common stock on 09/03/2025 at a price of $99.50 per share. After the sale, the reporting person beneficially owns 7,629 shares directly and indirectly, and holds an additional estimated 2,385 share equivalents indirectly in the Ameren Savings Investment Plan as of August 31, 2025. The filing was signed by an attorney-in-fact on behalf of Ms. Mizell on 09/04/2025. The document provides transaction details and an explanatory remark about the 401(k) share-equivalent estimate.
Gwendolyn G. Mizell, listed as SVP & CSO of a subsidiary of Ameren Corporation (AEE), reported a transaction on Form 4 showing she sold 1,000 shares of Ameren common stock on 08/22/2025 at a price of $101.79 per share. After that disposition the filing reports 9,129 shares beneficially owned directly. The filing also discloses an indirect holding of 2,384 share equivalents in the Ameren Savings Investment Plan as of July 31, 2025, and notes 11 shares and 23 dividend equivalents acquired in Q2 2025 through reinvestment features. The Form 4 was signed by attorney-in-fact Jonathan T. Shade on 08/26/2025.
Shawn E. Schukar, an officer of Ameren Corporation (AEE), reported a change in beneficial ownership dated 08/19/2025. The filing shows an indirect holding of 3,101 share equivalents in the Ameren Savings Investment Plan as of July 31, 2025. On 08/19/2025 the reporting person disposed of 796 shares of Ameren common stock (transaction code G) at a recorded price of $0. Following the reported transaction, the reporting person beneficially owned 56,816 shares, which includes 126 accrued dividend equivalents from restricted stock units under the 2022 Omnibus Incentive Compensation Plan. The form was signed by an attorney-in-fact on 08/20/2025.
T. Rowe Price Investment Management, Inc. reports a material passive stake in Ameren Corporation, holding 14,362,684 shares, equal to 5.2% of the common stock. The filer discloses sole voting power for 13,437,982 shares and sole dispositive power for all 14,362,684 shares, with no shared voting or dispositive authority. The Schedule 13G classification and the filer’s certification indicate these shares are held in the ordinary course of business and are not reported as intended to change or influence control. The filing clarifies ownership magnitude and voting authority without announcing any change in control.
Transaction summary: Michael L. Moehn, Sr Executive VP & CFO of Ameren Corporation (AEE), reported a sale of 6,500 shares of Ameren common stock on 08/01/2025 at $102.54 per share. Following the reported transaction, Mr. Moehn beneficially owns 204,879 shares directly. He also holds 5,147 share equivalents indirectly in the Ameren Savings Investment Plan unitized stock fund as of 07/31/2025.
Filing notes: The Form 4 was dated and signed by Jonathan T. Shade as attorney-in-fact on 08/05/2025. The filing states that the reported direct total includes 611 accrued dividend equivalents acquired in Q2 2025 pursuant to dividend reinvestment of restricted stock units under the issuer's 2022 Omnibus Incentive Compensation Plan. No derivative transactions were reported on this form.