Ameren Corporation filings document a Missouri-incorporated utility holding company with NYSE-listed common stock and rate-regulated utility subsidiaries, including Ameren Missouri, Ameren Illinois and co-registrants such as Union Electric Company and Ameren Illinois Company. The record covers consolidated operating results, unaudited financial statements, earnings guidance, utility infrastructure investment and the electric and natural gas service activities of Ameren Missouri and Ameren Illinois.
SEC disclosures also cover capital structure and financing activity, including senior note offerings under shelf registration statements, as well as proxy matters, shareholder voting, board composition, committee assignments, director compensation and governance policies. Form 8-K filings report material events, financial exhibits and co-registrant disclosures for the company's regulated utility subsidiaries.
Ameren Corp (AEE) reported insider transactions by a senior vice president of a subsidiary on 11/14/2025. The officer sold 2,404 shares of common stock at a weighted average price of $104.80, reducing directly held shares to 15,077 and then to 14,957 after a separate disposition of 120 shares coded as a gift. In addition to directly held stock, the officer has 3,018 share equivalents in a 401(k) unitized stock fund as of October 31, 2025, and 683 shares are held indirectly through a spouse. The sale price reflects multiple trades between $104.78 and $104.82.
Ameren Corp (AEE) reported insider activity by its SVP, Finance and CAO, Theresa A. Shaw. On 11/14/2025, she reported a sale of 325 shares of Ameren common stock at $104.77 per share. After this sale, she directly owned 32,942 shares of Ameren common stock.
On the same date, she also reported a separate transaction coded as a gift, transferring 1,432 shares at a price of $0, leaving her with 31,510 shares of directly owned Ameren common stock following the gift. In addition, she has an estimated 884 share equivalents held indirectly through a unitized stock fund in the Ameren Corporation Savings Investment Plan as of October 31, 2025, reflecting retirement-plan related holdings.
Ameren Corporation (AEE) director Richard J. Harshman reported a sale of Ameren common stock. On 11/14/2025, he disposed of 2,500 shares of Ameren common stock at a price of $104.90 per share in an open-market transaction coded "S" for sale. After this transaction, he beneficially owns 20,378 shares of Ameren common stock. The reported holdings include 480 shares that were acquired during the first through third quarters of 2025 through reinvested dividends.
Ameren Corporation reported that officer David M. Feinberg, EVP, General Counsel and Secretary, acquired 3,784 shares of common stock on 11/13/2025 through a grant of restricted stock units under the company’s 2022 Omnibus Incentive Compensation Plan. The award was recorded at a price of $0, reflecting that it is an equity incentive grant rather than a market purchase. Following this grant, Feinberg beneficially owns 3,784 shares directly. The filing notes that these restricted stock units will vest in two equal installments, with 50% vesting on February 28, 2027 and 50% vesting on February 29, 2028, subject to the terms of the plan and the applicable award agreement.
Ameren Corporation (AEE) filed an initial ownership report for one of its executives. The filing identifies the reporting person as an officer of Ameren serving as EVP, GC & Secretary. This Form 3 indicates that, as of the event date of 11/13/2025, the reporting person had no securities beneficially owned in Ameren. The form is signed by an attorney-in-fact under a power of attorney, reflecting standard administrative reporting of insider status and holdings.
AEE has a Form 144 notice indicating a planned sale of 225 shares of common stock through Fidelity Brokerage Services on the NYSE, with an approximate sale date of 11/17/2025. The filing lists an aggregate market value of 23,672.25 for these shares and notes that 270,494,916 shares of this class were outstanding at the time referenced. The shares to be sold came from restricted stock that vested on 01/03/2025 and were received as compensation from the issuer.
AEE filed a Form 144 notice for a proposed sale of 2,500 shares of common stock, with an aggregate market value of $262,250.25. The broker listed is Fidelity Brokerage Services LLC, and the shares are expected to be sold on or about 11/14/2025 on the NYSE.
The filing indicates the seller acquired the shares via restricted stock vesting from the issuer on 01/08/2015 (71 shares) and 01/07/2016 (2,429 shares). The table lists 270,494,916 shares outstanding. This notice states the seller’s intent and affirms no undisclosed material adverse information.
State Street Corporation filed a Schedule 13G reporting beneficial ownership of 14,047,510 shares of Ameren Corp (AEE) common stock, representing 5.2% of the class as of 09/30/2025.
The filing lists shared voting power over 9,587,691 shares and shared dispositive power over 14,046,544 shares, with no sole voting or dispositive power. State Street certified the securities were acquired and held in the ordinary course and not to change or influence control.
Ameren Corporation reported stronger Q3 2025 results, driven by higher electric revenues and ongoing grid and generation investment. Consolidated Q3 operating revenues rose to $2.7 billion from $2.2 billion a year earlier, lifting operating income to $825 million from $586 million. Net income attributable to common shareholders increased to $640 million, with diluted EPS up to $2.35 from $1.70.
For the first nine months of 2025, Ameren generated operating cash flow of $2.4 billion while funding about $3.1 billion of capital expenditures, mainly for regulated infrastructure and generation projects. Total assets reached $47.4 billion and long-term debt rose to $19.2 billion as the company continues to finance its growth plan.
Regulatory developments were significant. Missouri approved a $355 million annual electric rate increase effective June 2025 and a $32 million gas delivery increase effective September 2025. New Missouri legislation extended the plant-in-service accounting framework and expanded support for future natural gas and clean-energy investments, while Illinois approved multi‑year electric distribution revenue requirements and advanced natural gas and energy‑efficiency proceedings.
Ameren Corporation furnished a press release announcing earnings for the quarter ended September 30, 2025. The company also made available unaudited consolidated financial statements covering the three and nine months ended September 30, 2025 and 2024, a balance sheet at September 30, 2025 and December 31, 2024, and cash flows for the nine months ended those dates.
The press release was provided as Exhibit 99.1, with the unaudited financial statements as Exhibit 99.2. The information was furnished under Item 2.02 and is not deemed filed under Section 18 of the Exchange Act.