---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-119977"
form_type: "8-K"
ticker: "AEE"
cik: "0001002910"
company_name: "AMEREN CORP"
filed_at: "2025-12-10T23:59:59+00:00"
generated_at: "2026-05-16T13:36:50.273118+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Ameren amends credit agreements, increases total facility to $3.2B, extends maturity to 2030

## Summary
- Ameren and Ameren Missouri entered a $1.9B credit agreement (up from $1.4B), maturity extended to Dec 2030.
- Ameren and Ameren Illinois entered a $1.3B credit agreement (up from $1.2B), same maturity extension.
- Max borrowing limits: Missouri raised to $1.6B each; Illinois raised to $800M (Ameren) and $1.1B (Ameren Illinois).
- Letter of credit capacity increased from $250M to $400M for Missouri; Illinois unchanged at $275M.
- Swingline subfacility remains $50M per agreement; customary covenants including leverage ratios apply.

## SEC filing metadata
- accession: 0001104659-25-119977
- form_type: 8-K
- ticker: AEE
- cik: 0001002910
- company_name: AMEREN CORP
- filed_at: 2025-12-10T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1002910/000110465925119977/0001104659-25-119977-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/18654/000110465925119977/tm2533090d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-119977
- JSON: https://secwatch.observer/filing/0001104659-25-119977.json
- Plain text: https://secwatch.observer/filing/0001104659-25-119977.txt

## Key facts
- Debt Financings
  AMEREN CORP amended revolving credit of $1.3 billion multi-year, senior unsecured revolving Amended and Restated Credit Agreement with JPMorgan Chase Bank, N.A., as agent maturing December 10, 2030.
  - Instrument: revolving credit
  - Principal: $1.3 billion multi-year, senior unsecured revolving Amended and Restated Credit Agreement
  - Counterparty: JPMorgan Chase Bank, N.A., as agent
  - Maturity: December 10, 2030
  - Event: amendment
  source text: ), JPMorgan Chase Bank, N.A., as agent, and the lenders party thereto entered into a $1.3 billion multi-year, senior unsecured revolving Amended and Restated Credit Agreement
  evidence_url: https://www.sec.gov/Archives/edgar/data/1002910/000110465925119977/0001104659-25-119977-index.htm
- Debt Financings
  AMEREN CORP amended revolving credit of $1.9 billion multi-year, senior unsecured revolving Amended and Restated Credit Agreement with JPMorgan Chase Bank, N.A., as agent maturing December 10, 2030.
  - Instrument: revolving credit
  - Principal: $1.9 billion multi-year, senior unsecured revolving Amended and Restated Credit Agreement
  - Counterparty: JPMorgan Chase Bank, N.A., as agent
  - Maturity: December 10, 2030
  - Event: amendment
  source text: On December 10, 2025, Ameren and Ameren Missouri (together, the "Missouri Borrowers"), JPMorgan Chase Bank, N.A., as agent, and the lenders party thereto entered into a $1.9 billion multi-year, senior unsecured revolving Amended and Restated Credit Agreement
  evidence_url: https://www.sec.gov/Archives/edgar/data/1002910/000110465925119977/0001104659-25-119977-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.