Form 4: Ameren Executive Mizell Boosts Share Holdings

Ameren Corporation's SVP & CSO of a subsidiary, Gwendolyn G. Mizell, increased her beneficial ownership of common stock through restricted stock unit grants and performance share unit vesting.

Summary

• Gwendolyn G. Mizell, SVP & CSO of an Ameren subsidiary, reported an increase in her beneficial ownership of Ameren Corporation common stock.
• On February 5, 2026, Mizell acquired 865 restricted stock units (RSUs) under the issuer's 2022 Omnibus Incentive Compensation Plan, which are scheduled to vest upon payment in 2029, no later than March 15, 2029.
• Also on February 5, 2026, Mizell acquired 2,276 shares upon the vesting of previously granted performance share units (PSUs).
• The total direct beneficial ownership of common stock following these transactions is 10,815 shares.
• This amount includes 45 accrued dividend equivalents acquired during the third and fourth quarters of 2025 through a dividend reinvestment feature of previously granted restricted stock units.
• Additionally, Mizell holds an estimated 2,423 share equivalents indirectly in the Ameren Corporation Savings Investment Plan's unitized stock fund as of January 31, 2026.

Sentiment

Score: 7

Explanation: StockSavvy.ai views this as a moderately positive signal, as an executive increasing their beneficial ownership, even through compensation, generally indicates confidence in the company's future prospects and aligns management incentives with shareholder interests.

Positives

• An executive, Gwendolyn G. Mizell, increased her direct beneficial ownership of Ameren common stock by 3,141 shares through incentive compensation plans.
• The acquisition of 865 restricted stock units (RSUs) and 2,276 shares from vested performance share units (PSUs) demonstrates continued alignment of executive interests with shareholder value.
• The total direct beneficial ownership now stands at 10,815 shares, indicating a significant personal stake in the company's performance.

Future Outlook

The 865 restricted stock units granted on February 5, 2026, are scheduled to vest upon the payment date in 2029, which will be no later than March 15, 2029.

Industry Context

StockSavvy.ai notes that executive share acquisitions through incentive plans are a common practice in the utility sector, aligning management's long-term interests with the company's performance and shareholder returns. This type of filing is routine for publicly traded companies like Ameren, which operates in the regulated electric and natural gas utility industry.

Related Party Transactions

• The acquisition of shares by Gwendolyn G. Mizell, an SVP & CSO of a subsidiary, through the company's incentive compensation plan constitutes a related party transaction.

Stakeholder Impact

• Shareholders: Increased alignment of executive interests with shareholder value due to higher beneficial ownership.
• Employees: Reflects standard executive compensation practices, potentially signaling stability in leadership.

Next Steps

• The 865 restricted stock units are scheduled to vest upon the payment date in 2029, no later than March 15, 2029.

Key Dates

Recommendation

This Form 4 filing details routine executive compensation in the form of restricted stock unit grants and performance share unit vesting. While an increase in insider ownership is generally a positive signal of management alignment, these are not open market purchases and do not provide new fundamental information about the company's operational performance or strategic direction that would warrant a change in investment recommendation. Therefore, a "hold" recommendation is appropriate, maintaining current positions based on broader company fundamentals rather than this specific insider transaction.

Keywords

Ameren, AEE, Insider Transaction, Form 4, Gwendolyn G. Mizell, Restricted Stock Units, Performance Share Units, Executive Compensation, Beneficial Ownership, Utility Sector