Ameren Corporation

09/18/2026 | Press release | Distributed by Public on 09/18/2026 11:08

Material Event (Form 8-K)

ITEM 8.01 Other Events.

On September 18, 2026, Ameren Corporation ("Ameren") sold $900 million principal amount of its Junior Subordinated Notes due 2057 (the "Notes"). The Notes were offered pursuant to a Registration Statement on Form S-3 (File No. 333-297949), which became effective on August 4, 2026, and a Prospectus Supplement dated September 8, 2026, to a Prospectus dated August 4, 2026. Ameren received net offering proceeds of $891.0 million, before expenses, upon closing of the transaction.

This Current Report on Form 8-K is being filed to report as exhibits certain documents in connection with the offering of the Notes.

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