Every material Form 8-K Ameren filed with the SEC in 2025, read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). Newest first; each brief links to its own page and to the filing on SEC.gov.
Ameren's board elected Jamie L. Engstrom, Caterpillar's global chief information officer, as a director, with her term starting January 1, 2026. She was also appointed to the Audit and Risk Committee and the Cybersecurity and Digital Technology Committee, and the filing reports no arrangement with Ameren regarding her selection.
Board elected Engstrom on December 12, 2025; term begins January 1, 2026 and runs to the 2026 Annual Meeting of Shareholders
Engstrom will join the Audit and Risk Committee and the Cybersecurity and Digital Technology Committee effective January 1, 2026
Engstrom is Global Chief Information Officer and Senior Vice President at Caterpillar, Inc., and had no reportable business dealings with Ameren in 2024 or 2025 to date
Ameren and its utility subsidiaries Ameren Missouri and Ameren Illinois entered into amended and restated revolving credit agreements with JPMorgan Chase Bank, N.A. as agent on December 10, 2025. The agreements increase total facility size and extend maturities, providing the companies more borrowing capacity and a longer runway for short-term funding.
Missouri facility increased from $1.4 billion to $1.9 billion; Illinois facility increased from $1.2 billion to $1.3 billion, $3.2 billion combined
Maturity of commitments extended from December 6, 2028 to December 10, 2030, with two possible one-year extensions
Ameren maximum borrowing limit rose to $1.6 billion for Missouri and $800 million for Illinois; letter of credit capacity for Missouri rose from $250 million to $400 million
Covenants require Ameren debt ratio of 67.5% or less of total capitalization and 65% or less for each utility
Ameren reported third quarter 2025 GAAP net income of $640 million, or $2.35 per diluted share, up from $456 million, or $1.70, a year earlier. Adjusted diluted EPS was $2.17, compared with $1.87. The company raised its 2025 GAAP EPS guidance to $5.08 to $5.28 and set 2026 diluted EPS guidance at $5.25 to $5.45, though the quarter included a $48 million tax benefit that the company excluded from adjusted results.
Q3 2025 GAAP diluted EPS was $2.35 vs. $1.70 in Q3 2024; adjusted diluted EPS was $2.17 vs. $1.87.
Q3 2025 included a $48 million ($0.18 per share) tax benefit from a FERC order on net operating loss carryforwards, excluded from adjusted earnings.
2025 GAAP EPS guidance raised to $5.08 to $5.28 and adjusted EPS guidance to $4.90 to $5.10, both up from the original $4.85 to $5.05 range.
2026 diluted EPS guidance set at $5.25 to $5.45; analyst call scheduled for 9 a.m. Central Time on November 6, 2025.
Ameren Corporation said CFO Michael Moehn will become Group President, Ameren Utilities, and Leonard Singh, chairman and president of Ameren Illinois, will become Executive Vice President and Chief Financial Officer, both effective January 1, 2026. The filing also raises Moehn's base salary to $960,000 from $895,000 and Singh's to $715,000 from $650,000, with higher incentive targets for both, which matters to shareholders because it changes the company's top financial officer and executive pay levels.
Michael Moehn moves from Senior Executive Vice President and CFO to Group President, Ameren Utilities, overseeing all operating utilities
Leonard Singh moves from Chairman and President of Ameren Illinois to Executive Vice President and CFO, effective January 1, 2026
Moehn's base salary rises to $960,000 from $895,000; his LTIP target rises to 350% from 315% of base salary
Singh's base salary rises to $715,000 from $650,000; his LTIP target rises to 260% from 215% of base salary
Mark C. Birk informed Ameren that he will retire as Chairman and President of Union Electric Company (Ameren Missouri), effective October 2, 2025, and from his other subsidiary roles. Senior Executive Vice President and CFO Michael L. Moehn was elected Interim Chairman and President of Ameren Missouri, a role he previously held from 2014 to 2019. The filing does not describe a permanent successor or any financial effect.
Mark C. Birk to retire as Chairman and President of Ameren Missouri, effective October 2, 2025
Michael L. Moehn, Ameren's CFO since 2019, named Interim Chairman and President of Ameren Missouri
Moehn previously served as Chairman and President of Ameren Missouri from 2014 to 2019
Ameren reported second quarter 2025 net income attributable to common shareholders of $275 million, or $1.01 per diluted share, up from $258 million, or $0.97 per diluted share, a year earlier. Total operating revenues were $2,221 million, up from $1,693 million, and the company reaffirmed its 2025 diluted EPS guidance range of $4.85 to $5.05 per share, saying it is well positioned to land in the top half of that range.
Q2 2025 diluted EPS was $1.01 versus $0.97 in Q2 2024; net income was $275 million versus $258 million.
Q2 2025 total operating revenues were $2,221 million versus $1,693 million in Q2 2024.
Ameren reaffirmed 2025 diluted EPS guidance of $4.85 to $5.05 and said it is well positioned for earnings in the top half of the range, assuming normal temperatures for the last six months of the year.
Ameren Missouri Q2 2025 earnings were $150 million, compared with $128 million a year earlier, reflecting new electric rates effective June 1, 2025.
Ameren entered into forward sale agreements with four banks on May 12 and May 13, 2025, tied to a registered public offering of its common stock. The underwriters exercised their 30-day option in full on May 13, and the shares were sold on May 14, 2025. The filing does not state the number of shares, but the initial forward sale price is $91.885 per share and Ameren can choose when to settle, on or before January 15, 2027, which could lead to future share issuance.
Initial forward sale price is $91.885 per share, the price the underwriters agreed to pay for the offered shares.
Ameren may settle physically, in cash or by net share settlement, on a date it chooses on or before January 15, 2027.
The underwriters exercised their 30-day option in full on May 13, 2025; the shares were sold on May 14, 2025.
The offering was made under Form S-3 (File No. 333-274977) and a prospectus supplement dated May 12, 2025.
Ameren reported first quarter 2025 net income attributable to common shareholders of $289 million, or $1.07 per diluted share, up from $261 million, or $0.98 per diluted share, a year earlier. The company reaffirmed its 2025 diluted EPS guidance range of $4.85 to $5.05 and said it remains on track, which gives shareholders higher quarterly earnings and an unchanged full-year outlook.
Net income attributable to common shareholders was $289 million, or $1.07 per diluted share, versus $261 million, or $0.98, in Q1 2024.
Adjusted diluted EPS was $1.07 versus $1.02 in Q1 2024; the prior-year figure excluded an $11 million net charge tied to Rush Island.
2025 diluted EPS guidance of $4.85 to $5.05 was reaffirmed and assumes normal temperatures for the last nine months of the year.
Ameren Missouri earned $42 million versus $25 million GAAP in Q1 2024; Ameren Parent posted a $13 million loss versus $2 million of earnings a year earlier.
Ameren Corporation director Noelle K. Eder notified the board on April 22, 2025 that she is resigning, effective May 6, 2025. She cited personal reasons tied to a change in her primary employment that will require her to live outside the United States, and said the resignation was not due to any disagreement with the company.
Noelle K. Eder notified the board of her resignation as a director on April 22, 2025.
Resignation takes effect May 6, 2025.
Stated reason is personal, tied to a job change requiring residence outside the United States; no disagreement with the company is reported.
Ameren Corporation disclosed that director Kimberly J. Harris resigned from its Board of Directors, effective immediately, after notifying the board on March 24, 2025. She cited personal reasons related to her health and recovery from a recent medical issue, and the company said the resignation was not due to any disagreement over operations, policies or practices. The filing does not name a successor or describe any change to board composition beyond her departure.
Kimberly J. Harris notified the board of her resignation on March 24, 2025.
The resignation took effect immediately.
Ms. Harris cited personal health reasons and no disagreement with the company.
Ameren reported fourth-quarter and full-year 2024 results on February 13, 2025. Full-year GAAP diluted EPS was $4.42, up from $4.38 in 2023, and adjusted EPS was $4.63, after excluding $55 million of charges tied to matters outstanding for over a decade. The company affirmed its 2025 EPS guidance of $4.85 to $5.05 and issued a 6% to 8% diluted EPS compound annual growth rate target for 2025 through 2029.
Q4 2024 net income attributable to common shareholders was $207 million, or $0.77 per diluted share, versus $158 million, or $0.60, in Q4 2023.
Full-year 2024 adjusted EPS was $4.63 versus $4.38 in 2023; the excluded charges were $45 million for Rush Island and $10 million for FERC-related customer refunds.
Ameren expects projected rate base growth of about 9.2% compounded annually from 2024 through 2029.
Results are unaudited; the press release and financial statements were furnished under Items 2.02 and 8.01, and a conference call is set for February 14, 2025.
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