Ryan J. Martin, Senior Vice President Finance at Ameren Corporation, filed a Form 4 on August 20, 2026, reporting two open-market sales of Ameren common stock on August 18 and August 20, 2026.

Key Highlights

  • First sale: 471 shares of Common Stock, $0.01 Par Value, sold on August 18, 2026, at $109.87 per share.
  • Second sale: 500 shares sold on August 20, 2026, at $109.88 per share.
  • Direct holdings after transactions: 25,595 shares held directly, according to the filing.
  • Indirect holdings: 1,837 share equivalents held indirectly through the Ameren Corporation Savings Investment Plan 401(k) unitized stock fund, estimated as of July 31, 2026.
  • Dividend equivalents: The post-transaction direct total includes 87 accrued dividend equivalents acquired during the first and second quarters of 2026 under a dividend reinvestment feature of restricted stock units granted under the issuer's 2022 Omnibus Incentive Compensation Plan.
  • Filing authorized by: Jonathan T. Shade, Deputy Corporate Secretary for Ameren Corporation, as attorney-in-fact for Ryan J. Martin.

Ryan J. Martin's Share Transactions in Ameren Corporation Common Stock

According to the Form 4 filed with the SEC, Ryan J. Martin, identified as SVP Finance of Ameren Corporation (NYSE:AEE), reported two dispositions of Ameren common stock. On August 18, 2026, Martin sold 471 shares at a price of $109.87 per share, leaving a direct beneficial ownership of 26,008 shares following that transaction. Two days later, on August 20, 2026, Martin sold an additional 500 shares at $109.88 per share, reducing his directly held position to 25,595 shares.

The filing notes that the 25,595 direct share figure includes 87 accrued dividend equivalents acquired during the first and second quarters of 2026, pursuant to a dividend reinvestment feature of restricted stock units granted under the issuer's 2022 Omnibus Incentive Compensation Plan. Both sales were coded "S" in the filing, indicating open-market sale transactions.

In addition to directly held shares, the filing discloses that Martin holds an estimated 1,837 share equivalents indirectly through the unitized stock fund within the Ameren Corporation Savings Investment Plan (a 401(k) plan), as of July 31, 2026. No derivative securities transactions were reported. The form was signed August 20, 2026, by Jonathan T. Shade, Deputy Corporate Secretary for Ameren Corporation, acting as attorney-in-fact.

What Was Disclosed

The filing reported two sales of Ameren common stock by SVP Finance Ryan J. Martin totaling 971 shares across August 18 and August 20, 2026, at prices of $109.87 and $109.88 per share, with resulting direct ownership of 25,595 shares.