Ameren Corporation
Last updated September 27, 2026
Organization details
- Legal name
- Ameren Corporation
- Ownership
- Public
- Status
- Active
- SIC code
- 4931 — Electric & Other Services Combined
- Jurisdiction of incorporation
- Missouri
- Headquarters city
- ST Louis
- Headquarters state / province
- Missouri
- Headquarters country
- United States
- Fiscal year end
- December
- Ticker symbol
- AEE
- Primary stock exchange
- NYSE
Identifiers
- SEC CIK
- 0001002910
- EIN
- 43-1723446
Board of directors
-
Catherine S. Brune · DirectorSince 2023
-
Craig S. Ivey · DirectorSince 2023
-
Cynthia J. Brinkley · DirectorSince 2023
-
Ellen M. Fitzsimmons · DirectorSince 2023
-
J. Edward Coleman · DirectorSince 2023
-
James C. Johnson · DirectorSince 2023
-
Jamie L. Engstrom · DirectorSince 2026
-
Kimberly J. Harris · DirectorSince 2024
-
Leo S. Mackay Jr. · DirectorSince 2023
-
Martin J. Lyons · Director · Chairman, President & CEOSince 2023
-
Noelle K. Eder · DirectorSince 2023
-
Rafael Flores · DirectorSince 2023
-
Richard J. Harshman · DirectorSince 2023
-
Steven H. Lipstein · DirectorSince 2023
-
Steven O. Vondran · DirectorSince 2025
-
Timothy S. Rausch · DirectorSince 2026
-
Ward H. Dickson · DirectorSince 2023
-
Warner L. Baxter · Director · Executive ChairmanSince 2023
Chief executives
Martin J. Lyons
· Chairman, President & CEO
Dates unknown
Director election results
Annual meeting of May 14, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
93.5%
-
96.7%
-
97.0%
-
97.0%
-
97.1%
-
97.5%
-
97.8%
-
99.0%
-
99.0%
-
99.1%
-
99.1%
-
99.2%
Board connections
9 of this board's directors also sit on 12 other boards.
- via Cynthia J. Brinkley and James C. Johnson
- via Kimberly J. Harris and Warner L. Baxter
- via Steven O. Vondran
- via Kimberly J. Harris
- via Ward H. Dickson
- via Leo S. Mackay Jr.
- via James C. Johnson
- via Richard J. Harshman
- via Martin J. Lyons
- via Warner L. Baxter
- via Richard J. Harshman
- via Warner L. Baxter
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $8,596,711
- 22 sales by 11 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 11, 2026 | Rafael Flores Director | Open-market sale | −248 | $105.53 | $26,171 |
| Aug 20, 2026 | Martin Ryan J Officer (SVP Finance) | Open-market sale | −500 | $109.88 | $54,940 |
| Aug 18, 2026 | Martin Ryan J Officer (SVP Finance) | Open-market sale | −471 | $109.87 | $51,749 |
| Aug 14, 2026 | Shaw Theresa A Officer (SVP and CATO) | Open-market sale | −325 | $108.93 | $35,402 |
| Aug 3, 2026 | Michael L. Moehn Officer (Group President, Utilities) | Open-market sale | −6,500 | $108.96 | $708,240 |
| Jul 1, 2026 | Arora Ajay K Officer (EVP of Subsidiary) | Grant or award | +716 | — | — |
| Jul 1, 2026 | Smith Patrick E Officer (Chairman & President of Sub) | Grant or award | +280 | — | — |
| Jul 1, 2026 | Melda Aaron P Officer (Chairman & President of Sub) | Grant or award | +2,520 | — | — |
| Jun 1, 2026 | Arora Ajay K Officer (EVP of Subsidiary) | Grant or award | +6,797 | — | — |
| Jun 1, 2026 | Melda Aaron P Officer (Chairman and President) | Grant or award | +3,705 | — | — |
| May 14, 2026 | Shaw Theresa A Officer (SVP and CATO) | Open-market sale | −325 | $109.08 | $35,451 |
| May 12, 2026 | Shaw Theresa A Officer (SVP and CATO) | Open-market sale | −1,500 | $109.35 | $164,025 |
| May 1, 2026 | Michael L. Moehn Officer (Group President, Utilities) | Open-market sale | −6,500 | $113.63 | $738,595 |
| Mar 5, 2026 | Catherine S. Brune Director | Gift | −450 | — | — |
| Mar 4, 2026 | Martin Ryan J Officer (SVP Finance) | Open-market sale | −1,300 | $113.31 | $147,303 |
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