Every 424B that Ameren (AEE) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 424B covers the supplement that carries the terms of a priced offering, so if you follow AEE and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full AEE filings page.
Ameren Corporation (AEE) is conducting a registered offering of junior subordinated notes due March 15, 2057, as a takedown from its existing shelf registration. The notes are unsecured junior subordinated obligations that rank below all existing and future Senior Indebtedness and equally with any future Pari Passu Securities.
The notes pay fixed interest until March 15, 2032, then reset every five years to the Five-Year Treasury Rate plus a spread, with a floor equal to the initial fixed rate, and interest is paid semi-annually on March 15 and September 15, beginning March 15, 2027. Ameren may defer interest for up to 10 consecutive years per Optional Deferral Period, during which deferred interest compounds and certain dividend and junior debt payments are restricted.
Ameren may redeem the notes at par around the first reset date and on later interest payment dates, and also upon a Tax Deductibility Event (at 100%), a Rating Agency Event (at 102%), or a Tax Credit Event tied to "specified foreign entities" (at 101%, each plus accrued interest). Net proceeds are expected to be used for general corporate purposes, including repayment of commercial paper and other short-term debt.
Ameren Corporation is offering shares of its common stock in an "at the market" program and related forward sale arrangements for up to $2,266,700,000 of aggregate gross sales price. This is the remaining capacity under a previously authorized $5,000,000,000 sales agreement, of which $2,733,300,000 has already been sold.
Sales may be made through multiple major banks acting as sales agents, forward sellers and forward purchasers, including Barclays, BofA Securities, Goldman Sachs, J.P. Morgan, Mizuho, Morgan Stanley, MUFG, RBC and Wells Fargo. Ameren may also enter into forward sale agreements under which a forward purchaser or affiliate borrows and sells shares to hedge its position, with Ameren settling later in cash, shares or both.
Ameren intends to use any net proceeds it receives from direct share issuances or from settlement of forward sale agreements for general corporate purposes, which may include repayment of short‑term debt such as commercial paper. The company highlights that physical or net share settlement of forward sales will dilute earnings per share and return on equity, and that certain events could accelerate settlement or terminate forward contracts without proceeds.
$400,000,000 5.00% Senior Notes due 2036 are being issued by Ameren Corporation. The notes pay interest at 5.00% semi‑annually on May 15 and November 15, with first interest payable on November 15, 2026.
Proceeds (approximately $395.7 million) will be used for general corporate purposes, including repayment of a portion of short‑term debt and commercial paper. The notes are unsecured, rank equally with Ameren’s other senior debt and may be redeemed under specified formulas or at 101% following a defined Tax Credit Event.
Ameren Corporation is offering a new series of senior notes due 2036 under a preliminary prospectus supplement dated February 26, 2026. The notes will pay interest semi-annually and be issued in book-entry form through DTC.
The notes are unsecured direct obligations ranking equally with Ameren’s other senior debt and may be redeemed at Ameren’s option, including a full redemption at 101% of principal if a Tax Credit Event (as defined) occurs. Proceeds are intended for general corporate purposes, including repayment of short-term debt and refinancing amounts due in 2026. Ameren reported total consolidated capitalization of $33,512 million as of December 31, 2025, and commercial paper outstanding of $992.1 million as of February 25, 2026.