Ameren Corporation Announces Pricing of $94.00 Per Share Public Offering of Common Stock

Ameren Corporation announced the pricing of an underwritten public offering of 5,550,416 shares of its common stock at $94.00 per share. The offering is being conducted in connection with forward sale agreements entered into with Goldman Sachs & Co. LLC, JPMorgan Chase Bank, N.A., Barclays Bank PLC, and Wells Fargo Bank, N.A.

Subject to certain conditions, the shares are expected to be borrowed by the forward counterparties (or their affiliates) from third parties, sold to the underwriters, and subsequently offered to the public. Ameren will issue and sell shares directly to the underwriters only to the extent the forward counterparties (or their affiliates) are unable to borrow and deliver such shares.

Goldman Sachs & Co. LLC, J.P. Morgan Securities LLC, Barclays, and Wells Fargo Securities, LLC are acting as joint lead book-running managers and representatives for the offering. Additional book-running managers include BofA Securities, Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC, MUFG Securities Americas Inc., and RBC Capital Markets, LLC.

Ameren has also granted the underwriters a 30-day option to purchase up to an additional 832,562 shares under the same terms. If this option is exercised, Ameren intends to enter into additional forward sale agreements for those shares.

Settlement of the forward sale agreements is expected to occur on one or more dates to be determined by Ameren on or before January 15, 2027. Ameren may elect, subject to certain conditions, to settle the agreements in cash, through net share settlement, or by physical delivery of the shares.

The offering is expected to close on or about May 14, 2025, subject to customary closing conditions.