Mizell Gwendolyn G 4

What Happened

• Gwendolyn G. Mizell, Senior Vice President and Chief Security Officer of a subsidiary of Ameren Corporation (AEE), was issued a total of 3,141 shares on February 5, 2026. The filing shows two acquisitions: 865 shares and 2,276 shares, each reported at $0.00 (these were awards/grants, not purchases or sales). The transactions were reported on Form 4 filed February 9, 2026.

Key Details

• Transaction date: 2026-02-05. Filing date: 2026-02-09 (filed on time).
• Items acquired: 865 shares (unitized stock fund/plan equivalents) and 2,276 restricted stock units (total = 3,141).
• Price: $0.00 per share (award/grant; no cash paid).
• Shares owned after transaction: not specified in the provided filing details.
• Notable footnotes from the filing:
  • F1: 865 shares represent estimated share equivalents in the Ameren Corporation Savings Investment Plan as of Jan 31, 2026.
  • F2: The 2,276 restricted stock units were granted under Ameren’s 2022 Omnibus Incentive Compensation Plan and are scheduled to vest upon the payment date in 2029 (no later than Mar 15, 2029), subject to plan terms.
  • F3: The filing also references shares acquired upon vesting of previously-granted performance share units.
  • F4: The amount includes 45 accrued dividend equivalents from 3rd–4th quarters of 2025 via a dividend reinvestment feature.

Context

• These were compensation awards (unit fund credits and RSUs) rather than open-market purchases or sales; such grants are routine executive compensation and do not, by themselves, indicate the insider is buying or selling shares for investment purposes. The RSUs are scheduled to vest in 2029, so they are time- and/or condition‑restricted until the payment/vesting date.