Martin J. Lyons
President & CEO at Ameren Corporation
Sits on 2 boards. Last updated September 28, 2026
Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 2 boards, counting each seat separately. Longest: Ameren Corporation, 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Ameren Corporation May 14, 202697.0%
-
Martin Marietta Materials Inc. May 14, 202699.9%
-
Ameren Corporation May 8, 202597.0%
-
Ameren Corporation May 9, 202496.8%
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.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 31, 2026 | Martin Marietta Materials Inc. | Grant or award | +68 | $518.70 | $35,272 |
| May 29, 2026 | Martin Marietta Materials Inc. | Grant or award | +61 | $581.64 | $35,480 |
| May 14, 2026 | Martin Marietta Materials Inc. | Grant or award | +313 | — | — |
| Mar 3, 2026 | Ameren Corporation | Open-market sale | −26,818 | $111.84 | $2,999,325 |
| Feb 27, 2026 | Ameren Corporation | Shares withheld for tax | −28,154 | $113.28 | $3,189,285 |
| Feb 5, 2026 | Ameren Corporation | Grant or award | +23,170 | — | — |
| Feb 5, 2026 | Ameren Corporation | Grant or award | +44,840 | — | — |
| Mar 6, 2025 | Ameren Corporation | Gift | −2,000 | — | — |
| Mar 4, 2025 | Ameren Corporation | Open-market sale | −14,833 | $103.79 | $1,539,517 |
| Feb 28, 2025 | Ameren Corporation | Shares withheld for tax | −23,357 | $101.56 | $2,372,137 |
| Feb 6, 2025 | Ameren Corporation | Grant or award | +21,869 | — | — |
| Feb 6, 2025 | Ameren Corporation | Grant or award | +37,546 | — | — |
| Mar 4, 2024 | Ameren Corporation | Open-market sale | −7,270 | $70.70 | $513,989 |
| Feb 29, 2024 | Ameren Corporation | Shares withheld for tax | −11,496 | $71.19 | $818,400 |
| Feb 8, 2024 | Ameren Corporation | Grant or award | +25,407 | — | — |
Questions about Martin J. Lyons
What boards is Martin J. Lyons on?
Martin J. Lyons sits on the boards of Ameren Corporation and Martin Marietta Materials Inc.
What company is Martin J. Lyons the CEO of?
Martin J. Lyons is President & CEO of Ameren Corporation.
How long has Martin J. Lyons served on boards?
Our records show at least 4 years of board service across 2 boards, the earliest from 2023.
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