secwatch / observer
AEE AMEREN CORP
CIK 0001002910 50 ready 8-Ks latest August 4, 2026, 5:15 PM ET RSS · JSON
Activity: NORMAL 2 filings / 30d vs 1 baseline
Ready 8-Ks 50
Latest filing August 24, 2026, 1:17 PM ET
Top materiality 0.85
Event mix debt ×14 · earnings ×11 · regulatory ×9
Sentiment 10 pos · 2 neg · 38 neu
Latest earnings reported 2026-Q1
Executive change recent →

Recent 8-K filings for AEE

Executive changes

Departed

Noelle K. Eder

Director
AEE · AMEREN CORP
Effective
2025-05-06
Filed
April 28, 2025, 7:59 PM ET
On April 22, 2025, Noelle K. Eder notified the Board of Directors of Ameren Corporation (the "Company") that she was resigning as a director of the Company, effective as of May 6, 2025.
Departed

Kimberly J. Harris

director
AEE · AMEREN CORP
Effective
2025-03-24
Filed
March 27, 2025, 7:59 PM ET
On March 24, 2025, Kimberly J. Harris notified the Board of Directors of Ameren Corporation (the "Company") that she was resigning as a director of the Company, effective immediately.
Departed

Chonda J. Nwamu

Executive Vice President, General Counsel and Secretary
AEE · AMEREN CORP
Effective
2025-03-10
Filed
February 3, 2025, 6:59 PM ET
On January 30, 2025, Chonda J. Nwamu, Executive Vice President, General Counsel and Secretary of Ameren Corporation (the “Company”) informed the Company of her intent to resign from her roles with the Company and its subsidiaries, effective March 10, 2025.
Appointed

Kimberly J. Harris

Director
AEE · AMEREN CORP
Effective
2024-01-01
Filed
December 18, 2023, 6:59 PM ET
On December 15, 2023, the Board of Directors (the "Board") of Ameren Corporation ("Ameren") elected Ms. Kimberly J. Harris to the Board, with a term beginning on January 1, 2024
Role change

Martin J. Lyons, Jr.

Chairman
AEE · AMEREN CORP
Effective
2023-11-02
Filed
August 14, 2023, 7:59 PM ET
The Board has elected Martin J. Lyons, Jr., the President and Chief Executive Officer of the Company and a member of the Board, to the additional role of Chairman, effective upon Mr. Baxter's retirement on November 2, 2023.
Departed

Warner L. Baxter

Executive Chairman
AEE · AMEREN CORP
Effective
2023-11-02
Successor
Martin J. Lyons, Jr.
Filed
August 14, 2023, 7:59 PM ET
Warner L. Baxter, Executive Chairman of Ameren Corporation (the "Company"), notified the Company that he will retire from the Company's Board of Directors (the "Board") and as Executive Chairman, effective November 2, 2023.
Departed

Richard J. Mark

Chairman and President of Ameren Illinois Company
AEE · AMEREN CORP
Effective
2022-08-01
Filed
May 16, 2022, 7:59 PM ET
On May 13, 2022, Richard J. Mark, Chairman and President of Ameren Illinois Company, a subsidiary of Ameren Corporation (the "Company"), notified the Company that he intends to retire from the Company and its affiliated entities effective August 1, 2022.
Appointed

Martin J. Lyons, Jr.

President and Chief Executive Officer of the Company
AEE · AMEREN CORP
Effective
2022-01-01
Filed
October 12, 2021, 7:59 PM ET
the election of Martin J. Lyons, Jr., Chairman and President of Union Electric Company, doing business as Ameren Missouri (“Ameren Missouri”), as President and Chief Executive Officer of the Company and as a member of the Board of Directors, effective January 1, 2022.
Role change

Warner L. Baxter

Executive Chairman of the Company
AEE · AMEREN CORP
Effective
2022-01-01
Filed
October 12, 2021, 7:59 PM ET
Also effective January 1, 2022, Warner L. Baxter, the Company’s Chairman, President and Chief Executive Officer, was elected Executive Chairman of the Company and will remain a full-time employee and member of the Board of Directors.
Role change

Bruce A. Steinke

Senior Vice President, Finance and Chief Accounting Officer
AEE · AMEREN CORP
Effective
2021-08-16
Successor
Theresa A. Shaw
Filed
August 17, 2021, 7:59 PM ET
Bruce A. Steinke, who had previously served as the Company’s Senior Vice President, Finance and Chief Accounting Officer, ceased to perform the duties of principal accounting officer. Mr. Steinke will continue with Ameren Services in a new role, as Senior Vice President and Chief Transformation Officer.

Earnings & guidance

2026-Q1 EPS reported $1.28 filing →

Materiality & sentiment trend

Max materiality 0.85 · Median 0.55 · Most common event debt

10 positive 2 negative 38 neutral

source · AEE on sec.gov