Ameren (AEE) $400M 5.50% Bonds Due 2036

Ameren Illinois, a rate-regulated subsidiary of Ameren Corporation (AEE), priced $400 million of 5.50% fixed-rate bonds maturing in 2036 on August 24, 2026. The issuance adds to Ameren-related activity in 2026 and increases the group's outstanding long-term fixed-rate obligations for the medium term. This issuance should be viewed in the context of Ameren's broader capital program and regulatory profile. Ameren is a public utility holding company operating primarily in Missouri and Illinois with rate-regulated electric generation, transmission, distribution and natural gas distribution segments. The company continues to invest in regulated infrastructure—grid upgrades, renewables integration and transmission projects—that support rate-base growth. Recent filings and disclosures highlight multi-year capital plans (including a Smart Energy Plan and MISO transmission awards) that imply sustained issuance and financing needs. From a balance-sheet and maturity perspective, this new 2036 tranche follows other 2026 capital activity: a $500 million 5.75% first mortgage bond issued June 29, 2026, and the company noted material debt maturities in 2026 in its disclosures. On August 4, 2026, Ameren also increased its equity distribution program limit by $2 billion, underscoring active financial management across debt and equity channels. Regulatory and operational factors remain central to Ameren's credit and capital strategy. The company operates under state regulatory frameworks (MoPSC and ICC) that drive rate recovery timelines, approved returns on equity in select proceedings, and incentives for infrastructure investment. Pending and recent regulatory matters—including Missouri rate filings and appeals tied to multi-year rate plans—are part of the operating backdrop that influences future allowed returns, rate base growth, and the trajectory of financing needs.