On August 24, 2026, Ameren Illinois Company sold $400 million principal amount of its 5.50% First Mortgage Bonds due 2036. The company received net offering proceeds of approximately $397.4 million before expenses. This debt issuance was conducted pursuant to an effective Form S-3 Registration Statement and a Prospectus Supplement dated August 17, 2026. Ameren Corporation operates in the electric utility industry.

Ameren Corporation increased the aggregate gross sales price authorized under its equity distribution program by $2,000,000,000. Following this adjustment, up to $2,266,700,000 in common stock remains available for issuance under the program governed by an agreement with multiple financial institutions acting as agents and forward sellers. The company retains the right to suspend offers at any time and has no obligation to sell shares. Ameren Corporation operates as a regulated electric and natural gas utility serving customers primarily in Missouri and Illinois.

Ameren Corporation reported second quarter 2026 diluted earnings per share of $1.13, up from $1.01 in the prior year period. Net income attributable to common shareholders totaled $314 million for the quarter and $671 million for the first half of 2026. The company reaffirmed its full-year 2026 earnings guidance range of $5.25 to $5.45 per diluted share. Ameren operates as a regulated electric and natural gas utility serving customers in Missouri and Illinois.

Union Electric Company, a subsidiary of Ameren Corporation, sold $500 million principal amount of 5.75% First Mortgage Bonds due 2056. The transaction closed on June 29, 2026, with net offering proceeds of approximately $492.2 million before expenses. Ameren Missouri is an electric utility company.

Union Electric Company, operating as Ameren Missouri, filed a request with the Missouri Public Service Commission to increase annual electric service revenues by $343 million. The request is based on a 10.25% return on common equity and a $16.7 billion rate base. A decision by the Missouri Public Service Commission is expected by May 2027, with new rates potentially effective by June 2027. Ameren Missouri is a utility company providing electric and gas services.