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Ameren Corporation has issued $400 million of 5.00% Senior Notes due 2036. These are long-term debt securities that pay a fixed 5.00% interest rate until maturity in 2036, giving Ameren a defined-cost source of capital for the next decade.
Ameren reports that it received approximately $396.6 million in net offering proceeds before expenses at closing. The notes were sold under an existing shelf registration on Form S-3 and a related prospectus supplement, reflecting a planned financing step to support the company’s capital and funding needs.
Ameren Corp director Timothy S. Rausch received a stock award of 1,251 common shares as director compensation. The shares were acquired on March 1, 2026 at a stated price of $0.00 per share, reflecting a grant rather than an open-market purchase.
After this award, his directly owned Ameren common stock holdings reported in this filing total 1,251 shares.
Ameren Corp Chairman, President & CEO Martin J. Lyons reported multiple stock transactions in Ameren common shares. He completed an open-market sale of 26,818 shares at $111.84 per share under a Rule 10b5-1 trading plan, leaving him with 282,681 directly held shares afterward.
On a prior date, 28,154 shares were withheld by the issuer at $113.28 per share to cover tax obligations tied to vesting performance share units and restricted stock units. The filing also notes 2,116 share equivalents held indirectly through the Ameren Corporation Savings Investment Plan’s unitized stock fund as of February 28, 2026.
Ameren Corp senior vice president Theresa A. Shaw reported a tax-related share disposition. On February 27, 2026, 1,296 shares of Ameren common stock were withheld by the company at $113.28 per share to cover tax obligations from vesting performance and restricted stock units, rather than being sold in the open market. After this withholding, she directly held 34,397 Ameren shares, and an additional 897 share equivalents were held indirectly through a 401(k) plan as of February 28, 2026.
Ameren Corp senior vice president of a subsidiary, Ajay K. Arora, reported a tax-related share disposition. On February 27, 2026, 1,035 common shares were withheld by the issuer at $113.28 per share to satisfy tax withholding obligations tied to vesting equity awards, leaving 15,499 directly owned shares.
He also reports indirect holdings of 1,717 share equivalents in the Ameren Corporation Savings Investment Plan as of February 28, 2026, and 21,037 shares held through a family trust.
Ameren Corp Group President, Utilities Michael L. Moehn reported a tax-related share disposition. On February 27, 2026, 14,355 shares of Ameren common stock were withheld by the company at $113.28 per share to cover tax obligations tied to vesting performance share units and restricted stock units.
After this withholding, Moehn directly owned 211,525 common shares. A separate footnote shows an additional 5,233 share equivalents held indirectly through the Ameren Corporation Savings Investment Plan as of February 28, 2026. The filing characterizes the disposition as a payment of tax liability using shares rather than an open-market sale.
Ameren Corp insider Gwendolyn G. Mizell reported a Form 4 showing 943 shares of common stock were disposed of at $113.28 per share to satisfy tax withholding from vesting stock awards. After this tax-withholding disposition, she directly owns 6,324 shares and indirectly holds 2,424 share equivalents through the Ameren Savings Investment Plan as of February 28, 2026.
Ameren Corp executive Shawn E. Schukar reported multiple stock transactions. He sold 4,975 shares of Ameren common stock in an open-market sale at $111.84 per share pursuant to a Rule 10b5-1 trading plan, leaving him with 56,830 directly held shares.
On February 27, 2026, 3,148 shares were disposed of at $113.28 per share to cover tax withholding obligations tied to vesting performance share units and restricted stock units. As of February 28, 2026, he also held an estimated 3,153 share equivalents indirectly through the Ameren Corporation Savings Investment Plan.
Ameren Corp senior vice president reports routine share withholding for taxes. On the vesting of performance share units and restricted stock units, 726 shares of common stock were withheld by the company at a price of $113.28 per share to cover tax obligations. After this tax-withholding disposition, Ryan J. Martin directly holds 27,779 Ameren common shares and has an additional estimated 1,789 share equivalents held indirectly through the Ameren Corporation Savings Investment Plan as of February 28, 2026.
AMEREN CORP senior vice president Eric V. Seidler reported a tax-related share disposition. On February 27, he had 982 common shares withheld by the issuer at $113.28 per share to cover tax obligations from vested performance and restricted stock units. After this, he directly owned 14,041 common shares, plus an estimated 1,793 share equivalents held indirectly through the Ameren Corporation Savings Investment Plan as of February 28, 2026.