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SEC Filing · 424B3

Ameren Corporation

AEENYSEEQUITYCurrent

SEC Filing

Filed Sep 8, 2026Accepted Sep 8, 2026, 9:12 AM EDTCIK 1002910Accession 0001104659-26-105724
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Company context

St. Louis-based Ameren Corporation powers the quality of life for 2.5 million electric customers and more than 900,000 natural gas customers in a 64,000-square-mile area through its Ameren Missouri and Ameren Illinois rate-regulated utility subsidiaries. Ameren Illinois provides electric transmission and distribution service and natural gas distribution service. Ameren Missouri provides electric generation, transmission and distribution service, as well as natural gas distribution service. Ameren Transmission Company of Illinois develops, owns and operates rate-regulated regional electric transmission projects in the Midcontinent Independent System Operator, Inc. For more information, visit Ameren.com, or follow us at @AmerenCorp, Facebook.com/AmerenCorp, or LinkedIn.com/company/Ameren.

Current securities

Recent company filings

  1. Other EventsSep 18, 2026
  2. 424B2 filingSep 9, 2026
  3. FWP filingSep 8, 2026
  4. 305B2 filingSep 8, 2026
  5. Other EventsAug 24, 2026

As-filed source

Primary evidence