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 Corp Group President, Utilities Michael L. Moehn reported a tax-related share disposition. On February 27, 2026, 14,355 shares of Ameren common stock were withheld by the company at $113.28 per share to cover tax obligations tied to vesting performance share units and restricted stock units.
After this withholding, Moehn directly owned 211,525 common shares. A separate footnote shows an additional 5,233 share equivalents held indirectly through the Ameren Corporation Savings Investment Plan as of February 28, 2026. The filing characterizes the disposition as a payment of tax liability using shares rather than an open-market sale.
Ameren Corp insider Gwendolyn G. Mizell reported a Form 4 showing 943 shares of common stock were disposed of at $113.28 per share to satisfy tax withholding from vesting stock awards. After this tax-withholding disposition, she directly owns 6,324 shares and indirectly holds 2,424 share equivalents through the Ameren Savings Investment Plan as of February 28, 2026.
Ameren Corp executive Shawn E. Schukar reported multiple stock transactions. He sold 4,975 shares of Ameren common stock in an open-market sale at $111.84 per share pursuant to a Rule 10b5-1 trading plan, leaving him with 56,830 directly held shares.
On February 27, 2026, 3,148 shares were disposed of at $113.28 per share to cover tax withholding obligations tied to vesting performance share units and restricted stock units. As of February 28, 2026, he also held an estimated 3,153 share equivalents indirectly through the Ameren Corporation Savings Investment Plan.
Ameren Corp senior vice president reports routine share withholding for taxes. On the vesting of performance share units and restricted stock units, 726 shares of common stock were withheld by the company at a price of $113.28 per share to cover tax obligations. After this tax-withholding disposition, Ryan J. Martin directly holds 27,779 Ameren common shares and has an additional estimated 1,789 share equivalents held indirectly through the Ameren Corporation Savings Investment Plan as of February 28, 2026.
AMEREN CORP senior vice president Eric V. Seidler reported a tax-related share disposition. On February 27, he had 982 common shares withheld by the issuer at $113.28 per share to cover tax obligations from vested performance and restricted stock units. After this, he directly owned 14,041 common shares, plus an estimated 1,793 share equivalents held indirectly through the Ameren Corporation Savings Investment Plan as of February 28, 2026.
Ameren Corp executive Mark C. Lindgren reported multiple stock transactions involving Ameren common stock. On March 3, 2026, he completed an open-market sale of 2,073 shares at $111.84 per share, conducted under a Rule 10b5-1 trading plan. Following this sale, his direct holdings stood at 44,983 shares.
On February 27, 2026, 2,054 shares were withheld by Ameren to satisfy tax obligations tied to vesting of performance share units and restricted stock units, a tax-withholding disposition rather than an open-market trade. As of February 28, 2026, he also held an estimated 1,733 share equivalents indirectly through the Ameren Corporation Savings Investment Plan 401(k) unitized stock fund.
Ameren Corp executive Leonard P. Singh reported a tax-related share disposition. On February 27, he had 5,478 shares of Ameren common stock withheld by the issuer at $113.28 per share to cover tax obligations from vesting performance share units and restricted stock units. After this tax-withholding disposition, he directly held 32,776 shares of Ameren common stock and indirectly held an estimated 94 share equivalents through the Ameren Corporation Savings Investment Plan as of February 28, 2026.
Ameren Corp executive Patrick E. Smith reported a tax-related share disposition. On February 27, 2026, 910 shares of Ameren common stock at $113.28 per share were withheld by the issuer to cover tax obligations from vesting performance share and restricted stock units.
After this tax-withholding disposition, Smith directly owned 19,910 shares of Ameren common stock. He also indirectly held an estimated 3,047 share equivalents through the Ameren Savings Investment Plan and 948 shares through his spouse as of late February 2026.
Ameren Corp director Timothy S. Rausch has filed an initial insider ownership report showing no beneficial ownership of company securities. The Form 3 indicates that he is a director of Ameren Corp and reports holding 0 shares directly following the reported date.
This filing is a baseline disclosure required when an individual becomes a reporting insider. It does not show any share purchases or sales and simply records that, as of the reported date, he has no beneficially owned Ameren Corp securities.