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.

Ameren Corporation Director · Chairman, President & CEO
3 years · Since 2023
6 months · Since 2026

Chief executive roles

Ameren Corporation · President & CEO
Dates unknown

Shareholder support

Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

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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