Mizell Gwendolyn G 4
4 · AMEREN CORP · Filed Mar 3, 2026
Research Summary
AI-generated summary of this filing
Ameren (AEE) SVP Gwendolyn G. Mizell Withholds 943 Shares for Taxes
What Happened
Gwendolyn G. Mizell, SVP & CSO of a subsidiary of Ameren Corporation (AEE), had 943 shares withheld to cover tax withholding obligations related to the vesting of equity awards. The withholding was recorded on 2026-02-27 at a price of $113.28 per share, for a total value of about $106,823.
Key Details
- Transaction date: 2026-02-27; Form 4 filed: 2026-03-03.
- Transaction type/code: F — payment of exercise price or tax liability (shares withheld).
- Shares withheld/disposed: 943 shares at $113.28 each (total ≈ $106,823).
- Shares owned after transaction: Not specified in the provided filing.
- Footnotes in filing: F1 notes estimated share equivalents held in the Ameren Savings Investment Plan as of 2/28/2026; F2 confirms shares were withheld by the issuer to satisfy tax withholding on vesting of performance share units and restricted stock units.
- No indication in this filing of an open-market sale or a 10b5-1 plan; this is a routine tax-withholding transaction related to vested awards.
Context
This was a tax-withholding (cashless) disposition tied to the vesting of equity awards, not an open-market sale. Such withholding is routine and typically reflects tax obligations rather than a directional insider view on the company.
Insider Transaction Report
Form 4
AMEREN CORPAEE
Mizell Gwendolyn G
Other
Transactions
- Tax Payment
Common Stock, $.01 Par Value
[F2]2026-02-27$113.28/sh−943$106,823→ 6,324 total
Holdings
- 2,424(indirect: By 401(k))
Common Stock, $.01 Par Value
[F1]
Footnotes (2)
- [F1]Represents the estimated number of share equivalents held by the reporting person in the unitized stock fund included in the Ameren Corporation Savings Investment Plan as of February 28, 2026.
- [F2]Shares withheld by the issuer to satisfy tax withholding obligations arising in connection with the vesting of performance share units and restricted stock units.
Signature
Jonathan T. Shade, Deputy Corp. Secy. of Ameren Corporation, attorney-in-fact for Gwendolyn G. Mizell|2026-03-03