---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-076557"
form_type: "8-K"
ticker: "AEE"
cik: "0001002910"
company_name: "AMEREN CORP"
filed_at: "2024-07-01T23:59:59+00:00"
generated_at: "2026-05-31T23:53:03.133155+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Ameren Missouri files $446M electric rate increase request with Missouri PSC

## Summary
- Requests $446M annual revenue increase; proposes 10.25% ROE, 52% equity, $14B rate base.
- Test year ended March 31, 2024; rate case includes pro-forma adjustments through Dec 31, 2024.
- Investments driven by Smart Energy Plan, 500 MW solar (Boomtown, Cass County, Huck Finn), and Callaway nuclear.
- Planned retirement of Rush Island Energy Center; Sioux Energy Center retirement extended from 2030 to 2032.
- MoPSC decision expected by May 2025; new rates effective June 2025 if approved.

## SEC filing metadata
- accession: 0001104659-24-076557
- form_type: 8-K
- ticker: AEE
- cik: 0001002910
- company_name: AMEREN CORP
- filed_at: 2024-07-01T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1002910/000110465924076557/0001104659-24-076557-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/100826/000110465924076557/tm2418583d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-076557
- JSON: https://secwatch.observer/filing/0001104659-24-076557.json
- Plain text: https://secwatch.observer/filing/0001104659-24-076557.txt

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