29 unchanged sentences
NYSE and therefore are not subject to the NYSE listing standards.
−Removed: Harshman serves as chairman of Ameren’s Audit and Risk Committee and Noelle K.
−Removed: Eder, Ellen M.
−Removed: Fitzsimmons, Rafael Flores, and Leo S.
+Added: Harshman serves as chairman of Ameren’s Audit and Risk Committee and Ward H.
+Added: Dickson, Jamie L.
+Added: Engstrom, Rafael Flores, and Leo S.
serve as members.
−Removed: The board of directors of Ameren has determined that Richard J.
−Removed: Harshman qualifies as an audit committee financial expert and is “independent” as that term is used in SEC Regulation 14A.
+Added: The board of directors of Ameren has determined that each of Richard J.
+Added: Harshman, Ward H.
+Added: Dickson and Leo S.
+Added: qualifies as an audit committee financial expert and is “independent” as that term is used in SEC Regulation 14A.
Also, on the same basis as reported above, the boards of directors of Ameren Missouri and Ameren Illinois use the Nominating and Corporate Governance Committee of Ameren’s board of directors to perform such committee functions.
123 unchanged sentences
Accounts receivable – affiliates 11 41
−Removed: Miscellaneous accounts and notes receivable 35 31
+Added: Miscellaneous accounts receivable 32 35
Mark-to-market derivative assets 8 3
8 unchanged sentences
Short-term debt 155 1,055
−Removed: Accounts payable — 2
Taxes accrued 6 7
22 unchanged sentences
Money pool advances, net ( 74 ) 495 ( 530 )
−Removed: Notes receivable – ATXI — — 35
Investments in subsidiaries ( 51 ) ( 557 ) ( 109 )
Investments in subsidiary debt securities ( 24 ) ( 44 ) —
−Removed: Net cash provided by (used in) investing activities ( 105 ) ( 634 ) 48
+Added: Net cash used in investing activities ( 87 ) ( 105 ) ( 634 )
Cash flows from financing activities:
28 unchanged sentences
The rate of interest depends on the composition of internal and external funds in the non-state-regulated subsidiary money pool.
−Removed: Interest revenues related to non-state-regulated money pool advances were $ 14 million, $ 10 million, and immaterial in 2024, 2023 and 2022, respectively.
+Added: Interest revenues related to non-state-regulated money pool advances were immaterial in 2025, 2024 and 2023, respectively.
Interest charges related to non-state-regulated money pool borrowings were immaterial in 2025, 2024, and 2023.
4 unchanged sentences
See Note 14 – Commitments and Contingencies under Part II, Item 8, of this report for a description of all material contingencies of Ameren Corporation (parent company only).
−Removed: NOTE 5 – TOTAL OTHER EXPENSE, NET
+Added: NOTE 5 – TOTAL OTHER INCOME (EXPENSE), NET
The following table presents the components of “Total Other Expense, Net” in the Condensed Statement of Income and Comprehensive Income for the years ended December 31, 2025, 2024, and 2023:
72 unchanged sentences
December 21, 2023 Form 8-K, Exhibits 4.3 and 4.4, File No.
+Added: 4.9 Ameren Ameren Indenture Company Order, dated March 7, 2025, establishing the 5.375% Senior Notes due 2035 (including the global note)
+Added: March 7, 2025 Form 8-K, Exhibits 4.3 and 4.4, File No.
4.10 Ameren Note Purchase Agreement, dated June 22, 2017, between Ameren Transmission Company of Illinois and the several purchasers named therein.
19 unchanged sentences
1993 Form 10-K, Exhibit 4.8,
+Added: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
Ameren Missouri
1 unchanged sentence
2000 Form 10-K, Exhibit 99,
−Removed: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
Ameren Missouri
64 unchanged sentences
October 7, 2024 Form 8-K, Exhibit 4.2, File No.
+Added: 4.44 Ameren Ameren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated March 1, 2025, for 5.25% First Mortgage Bonds due 2035
+Added: April 4, 2025 Form 8-K, Exhibit 4.2, File No.
Ameren Missouri
2 unchanged sentences
1992 Form 10-K, Exhibit 4.38,
+Added: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
Ameren Missouri
5 unchanged sentences
Exhibit 4.28, File No.
−Removed: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
Ameren Missouri
71 unchanged sentences
September 30, 2019 Form 10-Q, Exhibit 4.2, File No.
+Added: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
Ameren Illinois
1 unchanged sentence
June 19, 2006 Form 8-K, Exhibit 4.6, File No.
−Removed: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
Ameren Illinois
51 unchanged sentences
November 22, 2022 Form 8-K, Exhibit 4.2, File No.
−Removed: 4.91 Ameren Ameren Illinois Supplemental Indenture, dated as of May 1, 2023, to Ameren Illinois Mortgage for 4.95% First Mortgage Bonds due 2033
+Added: Ameren Illinois Supplemental Indenture, dated as of May 1, 2023, to Ameren Illinois Mortgage for 4.95% First Mortgage Bonds due 2033
May 31, 2023 Form 8-K, Exhibit 4.2, File No.
1 unchanged sentence
June 27, 2024 Form 8-K, Exhibit 4.2, File No.
+Added: 4.95 Ameren Ameren Illinois Supplemental Indenture, dated as of February 1, 2025, to Ameren Illinois Mortgage for 5.625% First Mortgage Bonds due 2055
+Added: March 3, 2025 Form 8-K, Exhibit 4.2, File No.
Ameren Illinois Indenture, dated as of June 1, 2006, from Ameren Illinois (successor in interest to Illinois Power Company) to The Bank of New York Mellon Trust Company, N.A., as successor trustee (Ameren Illinois Indenture)
8 unchanged sentences
September 30, 2019 Form 10-Q, Exhibit 4.4, File No.
+Added: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
Ameren Illinois Ameren Illinois Indenture Company Order dated December 10, 2013, establishing the 4.80% Senior Secured Notes due 2043 (including the global note)
December 10, 2013 Form 8-K, Exhibits 4.2 and 4.3, File No.
−Removed: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
Ameren Illinois Ameren Illinois Indenture Company Order dated June 30, 2014, establishing the 4.30% Senior Secured Notes due 2044 (including the global note)
2 unchanged sentences
December 14, 2015 Form 8-K, Exhibits 4.2 and 4.3, File No.
−Removed: Ameren Illinois Ameren Illinois Indenture Company Order dated December 14, 2015, establishing the 4.15% Senior Secured Notes due 2046 (including the global note)
−Removed: December 14, 2015 Form 8-K, Exhibits 4.2 and 4.3, File No.
Ameren Illinois Ameren Illinois Indenture Company Order dated December 6, 2016, requesting the authentication of an additional $240,000,000 aggregate principal amount of 4.15% Senior Secured Notes due 2046 (including the global note)
13 unchanged sentences
December 10, 2025 Form 8-K, Exhibit 10.1, File No.
−Removed: 10.3 Ameren Ameren Missouri First Amendment, dated as of April 19, 2023, to Amended and Restated Credit Agreement, dated as of December 6, 2022, by and among Ameren, Ameren Missouri and JPMorgan Chase Bank, N.A., as agent and the lenders party thereto
−Removed: June 30, 2023 Form 10-Q, Exhibit 10.1, File No.
Ameren Illinois Amended and Restated Credit Agreement, dated as of December 10 , 202 5 , by and among Ameren, Ameren Illinois and JP Morgan Chase Bank, N.A., as agent , and the lenders party thereto
December 10, 2025 Form 8-K, Exhibit 10.2, File No.
−Removed: 10.5 Ameren Ameren Illinois First Amendment, dated as of April 19, 2023, to Amended and Restated Credit Agreement, dated as of December 6, 2022, by and among Ameren, Ameren Illinois and JPMorgan Chase Bank, N.A., as agent and the lenders party thereto
−Removed: June 30, 2023 Form 10-Q, Exhibit 10.2, File No.
+Added: 10.4 Ameren Forward Sale Agreement, dated May 12, 2025, between Ameren and Goldman Sachs & Co.
+Added: LLC, as a Forward Purchaser
+Added: May 12, 2025 Form 8-K, Exhibit 10.1, File No.
+Added: 10.5 Ameren Forward Sale Agreement, dated May 12, 2025, between Ameren and JPMorgan Chase Bank, National Association, as a Forward Purchaser
+Added: May 12, 2025 Form 8-K, Exhibit 10.2, File No.
+Added: 10.6 Ameren Forward Sale Agreement, dated May 12, 2025, between Ameren and Barclays Bank PLC.
+Added: as a Forward Purchaser
+Added: May 12, 2025 Form 8-K, Exhibit 10.3, File No.
+Added: 10.7 Ameren Forward Sale Agreement, dated May 12, 2025, between Ameren and Wells Fargo Bank, National Association, as a Forward Purchaser
+Added: May 12, 2025 Form 8-K, Exhibit 10.4, File No.
+Added: 10.8 Ameren Additional Forward Sale Agreement, dated May 13, 2025, between Ameren and Goldman Sachs & Co.
+Added: LLC, as a Forward Purchaser
+Added: May 12, 2025 Form 8-K, Exhibit 10.5, File No.
+Added: 10.9 Ameren Additional Forward Sale Agreement, dated May 13, 2025, between Ameren and JPMorgan Chase Bank, National Association, as a Forward Purchaser
+Added: May 12, 2025 Form 8-K, Exhibit 10.6, File No.
+Added: 10.10 Ameren Additional Forward Sale Agreement, dated May 13, 2025, between Ameren and Barclays Bank PLC.
+Added: as a Forward Purchaser
+Added: May 12, 2025 Form 8-K, Exhibit 10.7, File No.
+Added: 10.11 Ameren Additional Forward Sale Agreement, dated May 13, 2025, between Ameren and Wells Fargo Bank, National Association, as a Forward Purchaser
+Added: May 12, 2025 Form 8-K, Exhibit 10.8, File No.
10.12 Ameren *Summary Sheet of Ameren Corporation Non-Management Director Compensation effective as of January 1, 2022
15 unchanged sentences
10.20 Ameren Companies *2026 Ameren Short-Term Incentive Plan
−Removed: 2023 Form 10-K, Exhibit 10.15, File No.
−Removed: 10.15 Ameren Companies *2025 Ameren Short-Term Incentive Plan
10.21 Ameren Companies *2025 Base Salary Table for Named Executive Officers
1 unchanged sentence
10.22 Ameren Companies *2026 Base Salary Table for Named Executive Officers
−Removed: 2022 Form 10-K, Exhibit 10.21, File No.
−Removed: 10.18 Ameren Companies *2024 Base Salary Table for Named Executive Officers
−Removed: 2023 Form 10-K, Exhibit 10.19, File No.
−Removed: 10.19 Ameren Companies *2025 Base Salary Table for Named Executive Officers
+Added: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
10.23 Ameren Companies *Second Amended and Restated Ameren Corporation Change of Control Severance Plan
5 unchanged sentences
2022 Form 10-K, Exhibit 10.31, File No.
−Removed: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
10.27 Ameren Companies *Formula for Determining 2024 Target Performance Share Unit and Restricted Stock Unit Awards to be Issued to Named Executive Officers
3 unchanged sentences
10.29 Ameren Companies *Formula for Determining 2026 Target Performance Share Unit and Restricted Stock Unit Awards to be Issued to Named Executive Officers
−Removed: 2021 Form 10-K, Exhibit 10.30, File No.
−Removed: 10.27 Ameren Companies *Formula for Determining 2023 Target Performance Share Unit and Restricted Stock Unit Awards to be Issued to Named Executive Officers
−Removed: 2022 Form 10-K, Exhibit 10.31, File No.
−Removed: 10.28 Ameren Companies *Formula for Determining 2024 Target Performance Share Unit and Restricted Stock Unit Awards to be Issued to Named Executive Officers
−Removed: 2023 Form 10-K, Exhibit 10.29, File No.
−Removed: 10.29 Ameren Companies *Formula for Determining 2025 Target Performance Share Unit and Restricted Stock Unit Awards to be Issued to Named Executive Officers
10.30 Ameren Companies * Ameren Corporation 2022 Omnibus Incentive Compensation Plan
−Removed: Exhibit 99, File No.
−Removed: 10.31 Ameren Companies *Form of Performance Share Unit Award Agreement for Awards Issued in 2019 pursuant to 2014 Omnibus Incentive Compensation Plan
−Removed: 2018 Form 10-K, Exhibit 10.34, File No.
−Removed: 10.32 Ameren Companies *Form of Restricted Stock Unit Award Agreement for Awards Issued in 2019 pursuant to 2014 Omnibus Incentive Compensation Plan
−Removed: 2018 Form 10-K, Exhibit 10.35, File No.
−Removed: 10.33 Ameren Companies *Form of Performance Share Unit Award Agreement for Awards Issued in 2020 pursuant to 2014 Omnibus Incentive Compensation Plan
−Removed: 2019 Form 10-K, Exhibit 10.41, File No.
−Removed: 10.34 Ameren Companies *Form of Restricted Share Unit Award Agreement for Awards Issued in 2020 pursuant to 2014 Omnibus Incentive Compensation Plan
−Removed: 2019 Form 10-K, Exhibit 10.42, File No.
−Removed: 10.35 Ameren Companies *Form of Performance Share Unit Award Agreement for Awards Issued in 2021 pursuant to 2014 Omnibus Incentive Compensation Plan
−Removed: 2020 Form 10-K, Exhibit 10.44, File No.
−Removed: 10.36 Ameren Companies *Form of Restricted Share Unit Award Agreement for Awards Issued in 2021 pursuant to 2014 Omnibus Incentive Compensation Plan
−Removed: 2020 Form 10-K, Exhibit 10.45, File No.
−Removed: 10.37 Ameren Companies *Form of Performance Share Unit Award Agreement for Awards Issued in 2022 pursuant to 2014 Omnibus Incentive Compensation Plan
−Removed: 2021 Form 10-K, Exhibit 10.42, File No.
−Removed: 10.38 Ameren Companies *Form of Restricted Share Unit Award Agreement for Awards Issued in 2022 pursuant to 2014 Omnibus Incentive Compensation Plan
−Removed: 2021 Form 10-K, Exhibit 10.43, File No.
−Removed: 10.39 Ameren Companies * Ameren Corporation 2022 Omnibus Incentive Compensation Plan
May 13, 2022 Form 8-K, Exhibit 10.1, File No.
14 unchanged sentences
10.38 Ameren Companies *Form of Performance Share Unit Award Agreement (Relative Total Shareholder Return metric) for awards issued in 2025 pursuant to 2022 Omnibus Incentive Compensation Plan
+Added: 2024 Form 10-K, Exhibit 10.47, File No.
10.39 Ameren Companies *Form of Performance Share Unit Award Agreement (Clean Energy Transition metric) for awards issued in 2025 pursuant to 2022 Omnibus Incentive Compensation Plan
+Added: 2024 Form 10-K, Exhibit 10.48, File No.
10.40 Ameren Companies “Form of Restrictive Stock Unit Award Agreement for awards issued in 2025 pursuant to 2022 Omnibus Incentive Compensation Plan
−Removed: 10.50 Ameren Companies *Ameren Corporation Severance Plan for Ameren Officers, effective January 1, 2019
2024 Form 10-K, Exhibit 10.49, File No.
+Added: 10.41 Ameren Companies *Form of Performance Share Unit Award Agreement (Relative Total Shareholder Return metric) for awards issued in 2026 pursuant to 2022 Omnibus Incentive Compensation Plan
+Added: 10.42 Ameren Companies *Form of Performance Share Unit Award Agreement (Energy Resource Development metric) for awards issued in 2026 pursuant to 2022 Omnibus Incentive Compensation Plan
+Added: 10.43 Ameren Companies *Form of Restrictive Stock Unit Award Agreement for awards issued in 2026 pursuant to 2022 Omnibus Incentive Compensation Plan
+Added: 10.44 Ameren Companies *Special Restricted Stock Unit Award Agreement, dated as of October 9, 2025, between Ameren and Theresa A.
+Added: 10.45 Ameren Companies *Bonus Agreement, dated as of November 13, 2025, between Ameren Services and David M.
+Added: 10.46 Ameren Companies *Restricted Stock Unit Award Agreement, dated as of November 13, 2025, between Ameren and David M.
+Added: 10.47 Ameren Companies *Ameren Corporation Severance Plan for Ameren Officers, effective January 1, 2026
10.48 Ameren Companies *Ameren Supplemental Retirement Plan, amended and restated effective January 1, 2008, dated June 13, 2008
4 unchanged sentences
2023 Form 10-K, Exhibit 10.52, File No.
−Removed: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
10.51 Ameren Companies *Third Amendment to amended and restated Ameren Supplemental Retirement Plan, dated January 5, 2015
2023 Form 10-K, Exhibit 10.53, File No.
+Added: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
10.52 Ameren Companies *Fourth Amendment to amended and restated Ameren Supplemental Retirement Plan, dated November 3, 2015
2 unchanged sentences
2023 Form 10-K, Exhibit 10.55, File No.
−Removed: 10.57 Ameren Companies Separation Agreement and General Release, effective April 5, 2024, between Bhavani Amirthalingam and Ameren Services Company
−Removed: June 30, 2024 Form 10-Q, Exhibit 10.1, File No.
Insider Trading Policies and Procedures
19.1 Ameren Companies Ameren Corporation Insider Trading Policy
+Added: 2024 Form 10-K, Exhibit 19.1, File No.
Subsidiaries of the Registrant
32 unchanged sentences
101.DEF Ameren Companies XBRL Taxonomy Extension Definition Document
−Removed: Exhibit Designation Registrant(s) Nature of Exhibit Previously Filed as Exhibit to:
104 Ameren Companies Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)
15 unchanged sentences
Chairman, President, and Chief Executive Officer, and Director (Principal Executive Officer) February 18, 2026
−Removed: /s/ Michael L.
−Removed: Moehn Senior Executive Vice President and Chief Financial Officer
+Added: /s/ Leonard P.
+Added: Singh Executive Vice President and Chief Financial Officer
(Principal Financial Officer) February 18, 2026
/s/ Theresa A.
−Removed: Shaw Senior Vice President, Finance, and Chief Accounting Officer (Principal Accounting Officer) February 18, 2025
+Added: Shaw Senior Vice President, Chief Accounting and Transformation Officer (Principal Accounting Officer) February 18, 2026
* Director February 18, 2026
10 unchanged sentences
* Director February 18, 2026
−Removed: * Director February 18, 2025
−Removed: * Director February 18, 2025
−Removed: *By /s/ Michael L.
−Removed: Moehn February 18, 2025
+Added: *By /s/ Leonard P.
+Added: Singh February 18, 2026
Attorney-in-Fact
UNION ELECTRIC COMPANY (registrant)
−Removed: February 18, 2025 By /s/ Mark C.
−Removed: Chairman and President
+Added: February 18, 2026 By /s/ Michael L.
+Added: Interim Chairman and President
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the date indicated.
−Removed: Birk Chairman and President, and Director
−Removed: (Principal Executive Officer) February 18, 2025
/s/ Michael L.
−Removed: Moehn Senior Executive Vice President and Chief Financial Officer, and Director
+Added: Moehn Interim Chairman and President, and Director
+Added: (Principal Executive Officer) February 18, 2026
+Added: /s/ Leonard P.
+Added: Singh Executive Vice President and Chief Financial Officer
(Principal Financial Officer) February 18, 2026
/s/ Theresa A.
−Removed: Shaw Senior Vice President, Finance, and Chief Accounting Officer
+Added: Shaw Senior Vice President, Chief Accounting and Transformation Officer
(Principal Accounting Officer) February 18, 2026
1 unchanged sentence
* Director February 18, 2026
−Removed: *By /s/ Michael L.
−Removed: Moehn February 18, 2025
+Added: *By /s/ Leonard P.
+Added: Singh February 18, 2026
Attorney-in-Fact
AMEREN ILLINOIS COMPANY (registrant)
−Removed: February 18, 2025 By /s/ Leonard P.
+Added: February 18, 2026 By /s/ Patrick E.
Chairman and President
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the date indicated.
−Removed: /s/ Leonard P.
−Removed: Singh Chairman and President, and Director
+Added: /s/ Patrick E.
+Added: Chairman and President, and Director
(Principal Executive Officer) February 18, 2026
−Removed: /s/ Michael L.
−Removed: Moehn Senior Executive Vice President and Chief Financial Officer, and Director (Principal Financial Officer) February 18, 2025
+Added: /s/ Leonard P.
+Added: Singh Executive Vice President and Chief Financial Officer, and Director (Principal Financial Officer) February 18, 2026
/s/ Theresa A.
−Removed: Shaw Senior Vice President, Finance, and Chief Accounting Officer, and Director (Principal Accounting Officer) February 18, 2025
−Removed: * Director February 18, 2025
+Added: Shaw Senior Vice President, Chief Accounting and Transformation Officer, and Director (Principal Accounting Officer) February 18, 2026
* Director February 18, 2026
−Removed: *By /s/ Michael L.
−Removed: Moehn February 18, 2025
+Added: *By /s/ Leonard P.
+Added: Singh February 18, 2026
Attorney-in-Fact
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.