# Ameren Corporation Nuclear Decommissioning Trust

Ameren Corporation Nuclear Decommissioning Trust is a Trust / Investment Trust based in St. Louis, United States.

## Overview

- **Organization type:** Trust / Investment Trust
- **Headquarters:** St. Louis, United States
- **Region:** North America
- **Address:** One Ameren Plaza 1901 Chouteau Avenue, St. Louis, MO, United States
- **Founded:** 1902
- **Assets under management:** Undisclosed
- **Website:** www.ameren.com
- **LinkedIn:** https://www.linkedin.com/company/ameren

## Regulatory record

- **Reports private funds:** No

## About

Ameren Corporation serves as the holding company for electricity providers. It combines three Illinois utilities with Union Electric Company of St. Louis. Ameren Corporation holds Ameren Illinois and Ameren Missouri.

## Sectors

- Energy & Utilities

## People

- Marty Lyons — Chairman, President, and CEO of Ameren Corporation
- Mark Birk — Chairman and President of Ameren Missouri

## Questions

### Who oversees investment decisions for the Ameren Nuclear Decommissioning Trust?

Marty Lyons as Chairman, President, and CEO of Ameren Corporation and Mark Birk as Chairman and President of Ameren Missouri provide oversight. BNY Mellon acts as trustee and Willis Towers Watson serves as investment advisor.

### What asset classes does the trust hold?

The trust holds S&P 500 representative equities, US Treasury and agency securities, natural gas and financial power derivatives, and direct interests in Callaway County land.

### How is the trust funded and regulated?

Funding occurs through Missouri rate recovery mechanisms. The Missouri Public Service Commission and Nuclear Regulatory Commission set contribution levels and investment guidelines.

### Does the trust make private equity or venture investments?

No private equity or venture commitments appear in the disclosed holdings. Allocations remain in public equities, government securities, and energy derivatives.

### What is the relationship between the trust and Ameren Missouri?

Ameren Missouri is the sponsor utility whose rates support the trust. The trust assets are ring-fenced and cannot be accessed by the parent holding company.

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Last updated: 2026-06-03T20:00:00.000Z

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