---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-078757"
form_type: "8-K"
ticker: "AEE"
cik: "0001002910"
company_name: "AMEREN CORP"
filed_at: "2026-06-29T18:35:17+00:00"
generated_at: "2026-06-29T18:36:11.483965+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Ameren Missouri issues $500M of 5.75% First Mortgage Bonds due 2056

## Summary
- Principal amount $500M; interest rate 5.75%; maturity 2056; sold on June 29, 2026.
- Net proceeds approximately $492.2 million before expenses.
- Offered under existing shelf registration; underwriters include Fifth Third, Mizuho, TD Securities, Truist, U.S. Bancorp.
- Supplemental indenture dated June 1, 2026; bonds secured by first mortgage.

## SEC filing metadata
- accession: 0001104659-26-078757
- form_type: 8-K
- ticker: AEE
- cik: 0001002910
- company_name: AMEREN CORP
- filed_at: 2026-06-29T18:35:17+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1002910/000110465926078757/0001104659-26-078757-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/100826/000110465926078757/tm2619063d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-078757
- JSON: https://secwatch.observer/filing/0001104659-26-078757.json
- Plain text: https://secwatch.observer/filing/0001104659-26-078757.txt

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