Shaw Theresa A 4
4 · AMEREN CORP · Filed Mar 3, 2026
Research Summary
AI-generated summary of this filing
Ameren SVP Theresa Shaw: 1,296 Shares Withheld for Taxes
What Happened
Theresa A. Shaw, Senior Vice President and CATO of Ameren Corporation, had 1,296 shares withheld by the company on February 27, 2026 to satisfy tax withholding obligations related to vested performance share units and restricted stock units. The shares were valued at $113.28 each, for an aggregate value of approximately $146,811. This was an issuer share-withholding for taxes (disposition), not an open-market sale.
Key Details
- Transaction date: 2026-02-27
- Transaction type/code: Shares withheld for tax liability (F)
- Shares withheld/disposed: 1,296
- Price per share: $113.28; total value ≈ $146,811
- Shares owned after transaction: not specified in the Form 4 filing
- Footnotes: F1 refers to estimated share equivalents held in the Ameren Savings Investment Plan as of Feb 28, 2026; F2 confirms shares were withheld by the issuer to satisfy tax withholding on vesting PSUs and RSUs.
- Filing: Report filed 2026-03-03 — within the standard two-business-day Form 4 filing window for a 2026-02-27 transaction (timely).
Context
This was a routine cashless withholding to cover taxes on vested equity awards and does not indicate an open-market sale or a new investment decision by the insider. For retail investors, purchase transactions typically carry more interpretive weight than tax-withholdings, which are administrative.
Insider Transaction Report
- Tax Payment
Common Stock, $.01 Par Value
[F2]2026-02-27$113.28/sh−1,296$146,811→ 34,397 total
- 897(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.