ITEM 8.01 Other Events.

On April 1, 2022, Union Electric Company, doing business as Ameren Missouri ("Ameren Missouri"), a subsidiary of Ameren Corporation, sold $525 million principal amount of its 3.90% First Mortgage Bonds due 2052 (the "Bonds"). The Bonds were offered pursuant to a Registration Statement on Form S-3 (File No. 333-249475-01), which became effective on October 14, 2020, and a Prospectus Supplement dated March 21, 2022, to a Prospectus dated October 14, 2020. Ameren Missouri received net offering proceeds of approximately $519.1 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 Bonds.

ITEM 9.01 Financial Statements and Exhibits.





(d) Exhibits



Exhibit Number Title




  1       Underwriting Agreement, dated March 21, 2022, between Ameren Missouri
        and the several underwriters named therein, for whom Barclays Capital
        Inc., J.P. Morgan Securities LLC, MUFG Securities Americas Inc. and SMBC
        Nikko Securities America, Inc. are acting as representatives.

4.1*    Indenture of Mortgage and Deed of Trust, dated June 15, 1937, from Ameren
        Missouri to The Bank of New York Mellon, as successor trustee, as amended
        May 1, 1941, and Second Supplemental Indenture dated May 1, 1941
        (Exhibit B-1, File No. 2-4940).

  4.2     Supplemental Indenture, dated March 1, 2021, by and between Ameren
        Missouri and The Bank of New York Mellon, as successor trustee, relating
        to the 3.90% First Mortgage Bonds due 2052.

  5.1     Opinion of Chonda J. Nwamu, Esq., Senior Vice President, General
        Counsel and Secretary of the Company, regarding the legality of the Bonds
        (including consent).

  5.2     Opinion of Morgan, Lewis & Bockius LLP regarding the legality of the
        Bonds (including consent).

104     Cover Page Interactive Data File (formatted as Inline XBRL).

* Incorporated by reference as indicated.

This combined Form 8-K is being filed separately by Ameren Corporation and Union Electric Company (each a "registrant"). Information contained herein relating to any individual registrant has been filed by such registrant on its own behalf. No registrant makes any representation as to information relating to any other registrant.





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