Ameren Corp. (AEE) completed a debt financing by selling $900 million principal amount of Junior Subordinated Notes due 2057. The notes were issued under an effective shelf Registration Statement on Form S-3 and related Prospectus and Prospectus Supplement.
Ameren reports that it received $891.0 million in net offering proceeds, before expenses, at closing on September 18, 2026. The report also lists the underwriting agreement, indenture, company order, global notes, and legal opinions as exhibits related to this transaction.
AMEREN CORP (AEE) director Rafael Flores reported selling 248 shares of common stock on September 11, 2026 at $105.53 per share in an open-market or private transaction. After this sale, he reported owning 13,888 shares directly, including 183 shares acquired earlier in 2026 through reinvested dividends. No Rule 10b5-1 trading plan is reported for this transaction.
Ameren Corporation (AEE) is offering $900,000,000 principal amount of junior subordinated notes due 2057. The notes pay a fixed 6.450% annual interest rate until March 15, 2032, then reset every five years to the Five-Year Treasury Rate plus 1.868%, with a floor of 6.450%, paid semi-annually each March 15 and September 15. Ameren may defer interest for up to 10 consecutive years per period, with deferred interest compounding and strong restrictions on dividends and pari passu or junior debt payments during any deferral. The notes are unsecured and deeply subordinated to approximately $5.1 billion of Ameren Senior Indebtedness and to about $17.1 billion of subsidiary debt and preferred stock, and they are not listed on any exchange. Ameren can redeem the notes at par around and after the 2032 reset date or upon specified tax and rating agency events at 100–102% plus accrued interest. Estimated net proceeds of about $888.7 million will be used for general corporate purposes, including repayment of commercial paper.
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 CORP (AEE) reported that Ryan J. Martin, SVP Finance, sold a total of 971 shares of common stock in open-market transactions, consisting of 500 shares at $109.88 on August 20, 2026 and 471 shares at $109.87 on August 18, 2026, all held directly. The filing also reports an indirect holding of 1,837 share equivalents in a unitized stock fund within the Ameren Corporation Savings Investment Plan as of July 31, 2026, and notes that reported amounts include 87 dividend equivalents accrued under restricted stock units granted pursuant to Ameren’s 2022 Omnibus Incentive Compensation Plan.
AMEREN CORP executive Theresa A. Shaw, SVP and CATO, reported selling 325 shares of common stock on August 14, 2026 at $108.93 per share in an open-market or private transaction pursuant to a Rule 10b5-1 trading plan. After this sale, she directly held 32,340 shares, which include 47 dividend equivalents accrued under restricted stock units. She also indirectly held 928 share equivalents through a unitized stock fund in the Ameren Corporation Savings Investment Plan as of July 31, 2026.
Ameren Corp Group President, Utilities Michael L. Moehn sold 6,500 shares of common stock on August 3, 2026 at $108.96 per share in an open-market transaction under a Rule 10b5-1 trading plan. After this sale, he directly holds 199,689 shares, including 590 dividend equivalents credited on restricted stock units, and indirectly holds an estimated 5,304 share equivalents through the Ameren Corporation Savings Investment Plan’s unitized stock fund as of July 31, 2026.
Ameren Corporation expanded its existing equity distribution program for its common stock. On July 31, 2026, the company delivered a notice under Section 3(x) of its Equity Distribution Sales Agreement with multiple financial institutions acting as sales agents, forward sellers and forward purchasers, increasing by $2,000,000,000 the aggregate gross sales price authorized under the program.
After this increase, Ameren states that common stock with an aggregate gross sales price of up to $2,266,700,000 remains available for issuance under the equity distribution program. The company is not obligated to offer or sell any common stock under the Sales Agreement and may suspend offers at any time.
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.
A shareholder associated with AEE filed a notice of planned sales of 6,500 shares of common stock through Fidelity Brokerage Services LLC on the NYSE, with an indicated aggregate value of $708,240.00 as of 08/03/2026.
The shares were originally acquired from the issuer as restricted stock vesting compensation on multiple dates between 2019 and 2021, including 6,430 shares vested on 03/02/2020 and smaller vestings on 09/30/2019, 09/30/2020, 03/31/2021, 06/30/2021, and 09/30/2021.