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Ameren Corp (AEE): Initial insider holdings reported. Ryan J. Martin, SVP Corporate Strategy, Risk & Investor Relations, filed an initial statement of beneficial ownership effective 10/25/2025.
He reported 25,417 shares of common stock held directly, which includes 5,746 restricted stock units granted under the 2022 Omnibus Incentive Compensation Plan. He also reported 1,770 share equivalents held indirectly through the Ameren Corporation Savings Investment Plan as of October 31, 2025.
Ameren Corp (AEE) insider Ajay K. Arora filed a Form 3, reporting initial beneficial ownership as an officer (SVP of a subsidiary) effective 10/25/2025.
Holdings include 12,541 shares held directly, which includes 3,653 restricted stock units granted under the 2022 Omnibus Incentive Compensation Plan. Indirect holdings comprise 24,037 shares by a family trust and 1,699 share equivalents by 401(k) as of 10/31/2025.
AEE: A selling security holder filed a Form 144 notice to sell up to 6,500 shares of common stock. The filing lists an aggregate market value of $659,360.00 and an approximate sale date of 11/03/2025. The broker named is Fidelity Brokerage Services LLC, and the shares are indicated for the NYSE.
The shares to be sold were acquired on 03/01/2025 through restricted stock vesting, with the consideration labeled as compensation. The filing also notes a total of 270,409,918 shares outstanding, which serves as a baseline for context. This Form 144 is a notice of a proposed sale by an affiliate or holder, outlining the planned method and timing.
Ameren Corp (AEE) officer Theresa A. Shaw reported an equity award and updated holdings. On 10/09/2025, she acquired 2,411 restricted stock units at $0 under the 2022 Omnibus Incentive Compensation Plan. These RSUs are scheduled to vest upon the payment date in 2029, which shall be no later than November 15, 2029, subject to plan terms.
Following the reported transaction, Shaw directly owned 33,267 shares of Ameren common stock. The reported amount includes 92 accrued dividend equivalents acquired during the first through third quarters of 2025. She also held 884 share equivalents indirectly in the Ameren Corporation Savings Investment Plan as of September 30, 2025.
Ameren Corporation announced executive changes effective January 1, 2026. Michael L. Moehn, currently Senior EVP and CFO, was elected Group President, Ameren Utilities. Leonard P. Singh, Chairman and President of Ameren Illinois, was elected Executive Vice President and Chief Financial Officer.
Compensation was updated to reflect the new roles. Effective January 1, 2026, Mr. Moehn’s base salary increases from $895,000 to $960,000, with STIP target rising from 90% to 100% of base salary and LTIP target from 315% to 350%. Mr. Singh’s base salary increases from $650,000 to $715,000, with STIP target moving from 80% to 90% and LTIP target from 215% to 260%. The company noted no agreements or family relationships related to these elections and no related-party transactions under Item 404(a). A press release was furnished as Exhibit 99.1.
Ameren Corporation announced a leadership change at its Ameren Missouri subsidiary. On October 2, 2025, Mark C. Birk decided to retire from his role as Chairman and President of Union Electric Company, doing business as Ameren Missouri, and from all other positions he holds with Ameren subsidiaries.
Effective the same day, Michael L. Moehn, the company’s Senior Executive Vice President and Chief Financial Officer, was elected to also serve as Interim Chairman and President of Ameren Missouri. Moehn has been Ameren’s Chief Financial Officer since 2019 and previously led Ameren Missouri as Chairman and President from 2014 to 2019, giving him prior experience in this role.
Ameren Illinois Company sold $350 million principal amount of its 5.625% First Mortgage Bonds due 2055, a further issuance of bonds originally issued on March 3, 2025 in the same principal amount. The bonds were offered under an effective shelf registration on Form S-3 with a related prospectus and September 15, 2025 prospectus supplement. Ameren Illinois received approximately $358.1 million in net offering proceeds before expenses from this transaction. The report also files the underwriting agreement, indenture documents, and legal opinions related to the bond offering as exhibits.
Mark C. Lindgren, Executive Vice President and Chief HR Officer of a subsidiary of Ameren Corporation (AEE), reported a sale and current holdings in a Form 4 filing. On 09/12/2025 he sold 3,500 shares of Ameren common stock at $100.89 per share. After the transaction he beneficially owns 42,574 shares, which includes an estimated 1,701 share equivalents in the Ameren Savings Investment Plan as of August 31, 2025, and 48 accrued dividend equivalents from reinvested restricted stock units. The Form 4 was signed by an attorney-in-fact on 09/15/2025. The filing discloses the sale, the composition of holdings, and that dividend reinvestment affected the reported balance.
Ameren Corporation insider transaction reported for reporting person Gwendolyn G. Mizell. The Form 4 shows a sale of 1,500 shares of Ameren common stock on 09/03/2025 at a price of $99.50 per share. After the sale, the reporting person beneficially owns 7,629 shares directly and indirectly, and holds an additional estimated 2,385 share equivalents indirectly in the Ameren Savings Investment Plan as of August 31, 2025. The filing was signed by an attorney-in-fact on behalf of Ms. Mizell on 09/04/2025. The document provides transaction details and an explanatory remark about the 401(k) share-equivalent estimate.
Gwendolyn G. Mizell, listed as SVP & CSO of a subsidiary of Ameren Corporation (AEE), reported a transaction on Form 4 showing she sold 1,000 shares of Ameren common stock on 08/22/2025 at a price of $101.79 per share. After that disposition the filing reports 9,129 shares beneficially owned directly. The filing also discloses an indirect holding of 2,384 share equivalents in the Ameren Savings Investment Plan as of July 31, 2025, and notes 11 shares and 23 dividend equivalents acquired in Q2 2025 through reinvestment features. The Form 4 was signed by attorney-in-fact Jonathan T. Shade on 08/26/2025.