AEE 10-K Annual Report Dec. 31, 2019 | Alphaminr

AEE 10-K Fiscal year ended Dec. 31, 2019

AMEREN CORP
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TABLE OF CONTENTS
Part IItem 1. BusinessNote 1 Summary Of Significant Accounting PoliciesNote 2 Rate and Regulatory MattersNote 9 Callaway Energy CenterNote 14 Commitments and ContingenciesNote 7 Derivative Financial InstrumentsNote 13 Related-party TransactionsNote 15 Supplemental InformationItem 1A. Risk FactorsItem 1B. Unresolved Staff CommentsItem 2. PropertiesNote 5 Long-term Debt and Equity FinancingsItem 3. Legal ProceedingsItem 4. Mine Safety DisclosuresPart IIItem 5. Market For Registrants Common Equity, Related Stockholder Matters, and Issuer Purchase Of Equity SecuritiesItem 6. Selected Financial DataNote 12 Income TaxesItem 7. Management S Discussion and Analysis Of Financial Condition and Results Of OperationsNote 16 Segment InformationNote 6 Other Income, NetNote 10 Retirement BenefitsNote 4 Short-term Debt and LiquidityItem 7A. Quantitative and Qualitative Disclosures About Market RiskItem 8. Financial Statements and Supplementary DataNote 3 Property, Plant, and Equipment, NetNote 11 Stock-based CompensationNote 8 Fair Value MeasurementsItem 9. Changes in and Disagreements with Accountants on Accounting and Financial DisclosureItem 9A. Controls and ProceduresItem 9B. Other InformationPart IIIItem 10. Directors, Executive Officers, and Corporate GovernanceItem 11. Executive CompensationItem 12. Security Ownership Of Certain Beneficial Owners and Management and Related Stockholder MattersItem 13. Certain Relationships and Related Transactions and Director IndependenceItem 14. Principal Accounting Fees and ServicesPart IVItem 15. Exhibits and Financial Statement SchedulesNote 1 Basis Of PresentationNote 2 Cash and Cash EquivalentsNote 3 Short-term Debt and LiquidityNote 4 Long-term ObligationsNote 5 Commitments and ContingenciesNote 6 Other Income (expense), NetNote 7 Income TaxesItem 16. Form 10-k Summary

Exhibits

3.1(i) Ameren Restated Articles of Incorporation of Ameren Annex F to Part I of the Registration Statement on Form S-4, File No.33-64165 3.2(i) Ameren Certificate of Amendment to Amerens Restated Articles of Incorporation filed December 14, 1998 1998 Form 10-K, Exhibit 3(i),FileNo.1-14756 3.3(i) Ameren Certificate of Amendment to Ameren's Restated Articles of Incorporation filed April21, 2011 April 21, 2011 Form 8-K, Exhibit 3(i),FileNo.1-14756 3.4(i) Ameren Certificate of Amendment to Ameren's Restated Articles of Incorporation filed December 18, 2012 December 18, 2012 Form 8-K, Exhibit 3.1(i),FileNo.1-14756 3.5(i) Ameren Missouri Restated Articles of Incorporation of Ameren Missouri 1993 Form 10-K, Exhibit 3(i),FileNo.1-2967 3.6(i) Ameren Illinois Restated Articles of Incorporation of Ameren Illinois 2010 Form 10-K, Exhibit 3.4(i),FileNo.1-3672 3.7(ii) Ameren By-Laws of Ameren, as amended February 10, 2017 February 14, 2017 Form 8-K, Exhibit 3,File No.1-14756 3.8(ii) Ameren Missouri Bylaws of Ameren Missouri, as amended December 12, 2014 December 18, 2014 Form 8-K,Exhibit3.1, File No.1-2967 3.9(ii) Ameren Illinois Bylaws of Ameren Illinois, as amended December 12, 2014 December 18, 2014 Form 8-K,Exhibit3.2, File No.1-3672 4.2 Ameren First Supplemental Indenture to Ameren Senior Indenture dated as of May 19, 2008 June 30, 2008 Form 10-Q, Exhibit 4.1,FileNo.1-14756 4.3 Ameren Ameren Indenture Company Order, dated November 24, 2015,establishing the 2.70% Senior Notes due 2020and the 3.65% Senior Notes due 2026 (including the global notes) November 24, 2015 Form 8-K, Exhibits 4.3, 4.4 and 4.5, File No. 1-14756 4.4 Ameren Ameren Indenture Company Order, dated September 16, 2019, establishing the 2.50% Senior Notes due 2024(including the global note) September 16, 2019 Form 8-K, Exhibits 4.3 and 4.4, File No. 1-14756 4.5 Ameren Note Purchase Agreement, dated June 22, 2017, between Ameren Transmission Company of Illinois and the several purchasers named therein. June 26, 2017 Form 8-K, Exhibit 4.1, File No. 1-14756 4.7 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated as of July 1, 1956 Exhibit 4.22, File No. 333-222108 4.8 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated as of April 1, 1971 Exhibit 4.23, File No. 333-222108 4.9 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated as of February 1, 1974 Exhibit 4.24, File No. 333-222108 4.10 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated as of July 7, 1980 Exhibit 4.25, File No. 333-222108 4.11 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated as of October 1, 1993 1993 Form 10-K, Exhibit 4.8,FileNo.1-2967 4.19 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated September 1, 2004 relative to Series GG September 23, 2004 Form 8-K, Exhibit 4.4,File No.1-2967 4.20 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated January 1, 2005 relative to Series HH January 27, 2005 Form 8-K, Exhibit 4.4,FileNo.1-2967 4.21 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated July1, 2005 relative to Series II July 21, 2005 Form 8-K, Exhibit 4.4,FileNo.1-2967 4.22 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated June1, 2008 relative to Series MM June 19, 2008 Form 8-K, Exhibit 4.5,FileNo.1-2967 4.23 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated March 1, 2009 relative to Series NN March 23, 2009 Form 8-K, Exhibit 4.5,FileNo.1-2967 4.24 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated May 15, 2012 Exhibit 4.45, File No. 333-182258 4.25 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated September 1, 2012 relative to Series OO September 11, 2012 Form 8-K, Exhibit 4.4,File No. 1-2967 4.26 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated April 1, 2014 relative to Series PP April 4, 2014 Form 8-K, Exhibit 4.5,File No. 1-2967 4.27 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated March 15, 2015 relative to Series QQ April 6, 2015 Form 8-K, Exhibit 4.5, File No. 1-2967 4.28 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated June 1, 2017 relative to Series RR June 15, 2017 Form 8-K, Exhibit 4.5, File No. 1-2967 4.29 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage dated April 1, 2018 for 4.000% First Mortgage Bonds due 2048 April 6, 2018 Form 8-K, Exhibit 4.2, File No. 1-2967 4.30 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage, dated March 1, 2019, for 3.50% First Mortgage Bonds due 2029 March 6, 2019 Form 8-K, Exhibit 4.2, File No. 1-2967 4.31 AmerenAmeren Missouri Supplemental Indenture to the Ameren Missouri Mortgage, dated September 15, 2019, for 3.25% First Mortgage Bondsdue 2049 October 1, 2019 Form 8-K, Exhibit 4.2, File No. 1-2967 4.34 AmerenAmeren Missouri Series 1998A Loan Agreement, dated as of September1, 1998, between the Missouri Environmental Authority and Ameren Missouri September 30, 1998 Form 10-Q,Exhibit4.28, File No.1-2967 4.36 AmerenAmeren Missouri Series 1998B Loan Agreement, dated as of September1, 1998, between the Missouri Environmental Authority and Ameren Missouri September 30, 1998 Form 10-Q,Exhibit4.29, File No.1-2967 4.38 AmerenAmeren Missouri Series 1998C Loan Agreement, dated as of September1, 1998, between the Missouri Environmental Authority and Ameren Missouri September 30, 1998 Form 10-Q,Exhibit4.30, File No.1-2967 4.41 AmerenAmeren Missouri First Supplemental Indenture to the Ameren Missouri Indenture, dated as of May 15, 2012 Exhibit 4.48, File No. 333-182258 4.43 AmerenAmeren Missouri Ameren Missouri Indenture Company Order, dated January 27, 2005, establishing the 5.00% Senior Secured Notes due 2020(including the global note) January 27, 2005 Form 8-K, Exhibits 4.2 and 4.3, File No.1-2967 4.44 AmerenAmeren Missouri Ameren Missouri Indenture Company Order, dated July21, 2005, establishing the 5.30% Senior Secured Notes due 2037(including the global note) July 21, 2005 Form 8-K, Exhibits 4.2 and 4.3, File No.1-2967 4.45 AmerenAmeren Missouri Ameren Missouri Indenture Company Order, dated March20, 2009, establishing the 8.45% Senior Secured Notes due 2039(including the global note) March 23, 2009 Form 8-K, Exhibits 4.2 and 4.3, File No.1-2967 4.46 AmerenAmeren Missouri Ameren Missouri Indenture Company Order, dated September 11, 2012, establishing the 3.90% Senior Secured Notes due 2042(including the global note) September 30, 2012 Form 10-Q, Exhibit 4.1 and September 11, 2012 Form 8-K, Exhibit 4.2, File No.1-2967 4.47 AmerenAmeren Missouri Ameren Missouri Indenture Company Order, dated April 4, 2014, establishing the 3.50% Senior Secured Notes due 2024(including the global note) April 4, 2014 Form 8-K, Exhibits 4.2 and 4.3, File No.1-2967 4.48 AmerenAmeren Missouri Ameren Missouri Indenture Company Order, dated April 6, 2015, establishing the 3.65% Senior Secured Notes due 2045(including the global note) April 6, 2015 Form 8-K, Exhibits 4.2 and 4.3, File No. 1-2967 4.49 AmerenAmeren Missouri Ameren Missouri Indenture Company Order, dated June 23, 2016, requesting authentication of an additional $150,000,000 aggregate principal amount of 3.65% Senior Secured Notes due 2045(including the global note) June 23, 2016 Form 8-K, Exhibits 4.3, and 4.4, File No. 1-2967 4.50 AmerenAmeren Missouri Ameren Missouri Indenture Company Order, dated June 15, 2017, establishing the 2.950% Senior Secured Notes due 2027(including the global note) June 15, 2017 Form 8-K, Exhibits 4.2 and 4.3, File No. 1-2967 4.52 AmerenAmeren Illinois First Supplemental Indenture to the CIPS Indenture, dated as of June 14, 2006 June 19, 2006 Form 8-K, Exhibit 4.2, FileNo.1-3672 4.53 AmerenAmeren Illinois Second Supplemental Indenture to the CIPS Indenture, dated as of March 1, 2010 Exhibit 4.17, File No.333-166095 4.54 AmerenAmeren Illinois Third Supplemental Indenture to the CIPS Indenture, dated as of October 1, 2010 2010 Form 10-K, Exhibit 4.59, FileNo.1-3672 4.55 AmerenAmeren Illinois Ameren Illinois Global Note, dated October1, 2010, representing CIPS Indenture Senior Notes, 6.125% due 2028 2010 Form 10-K, Exhibit 4.60, FileNo.1-3672 4.56 AmerenAmeren Illinois Ameren Illinois Global Note, dated October1, 2010, representing CIPS Indenture Senior Notes, 6.70% Series Secured Notes due 2036 2010 Form 10-K, Exhibit 4.62, FileNo.1-3672 4.57 AmerenAmeren Illinois Indenture, dated as of June 1, 2006, from Ameren Illinois (successor in interest to Central Illinois Light Company) to The Bank of New York Mellon Trust Company, N.A., as successor trustee (CILCO Indenture) June 19, 2006 Form 8-K, Exhibit 4.3, FileNo.1-2732 4.58 AmerenAmeren Illinois First Supplemental Indenture to the CILCO Indenture, dated October 1, 2010 October 7, 2010 Form 8-K, Exhibit 4.1, FileNo.1-3672 4.59 AmerenAmeren Illinois Second Supplemental Indenture to the CILCO Indenture dated as of July 21, 2011 September 30, 2011 Form 10-Q, Exhibit4.1,File No.1-3672 4.60 AmerenAmeren Illinois Third Supplemental Indenture to the CILCO Indenture, dated as of October 15, 2019 September 30, 2019 10-Q, Exhibit 4.2, File No. 1-3672 4.61 AmerenAmeren Illinois CILCO Indenture Company Order, dated June 14, 2006, establishing the 6.70% Senior Secured Notes due 2036 (including the global note) June 19, 2006 Form 8-K, Exhibit 4.6, FileNo.1-2732 4.64 AmerenAmeren Illinois Supplemental Indenture, dated as of October 1, 2010, to Ameren IllinoisMortgage for Series CIPS-AA and CIPS-CC October 7, 2010 Form 8-K, Exhibit 4.9, FileNo.1-3672 4.65 AmerenAmeren Illinois Supplemental Indenture, dated as of January 15, 2011, to Ameren IllinoisMortgage Exhibit 4.78, File No. 333-182258 4.67 AmerenAmeren Illinois Supplemental Indenture, dated as of August 1, 2012, to Ameren IllinoisMortgage for Series EE August 20, 2012 Form 8-K, Exhibit 4.5, FileNo.1-3672 4.68 AmerenAmeren Illinois Supplemental Indenture, dated as of December 1, 2013, to Ameren Illinois Mortgage for Series FF December 10, 2013 Form 8-K, Exhibit 4.5, File No. 1-3672 4.69 AmerenAmeren Illinois Supplemental Indenture, dated as of June 1, 2014, to Ameren Illinois Mortgage for Series GG June 30, 2014 Form 8-K, Exhibit 4.5, File No. 1-3672 4.70 AmerenAmeren Illinois Supplemental Indenture, dated as of December 1, 2014, to Ameren Illinois Mortgage for Series HH December 10, 2014 Form 8-K, Exhibit 4.5, File No. 1-3672 4.71 AmerenAmeren Illinois Supplemental Indenture, dated as of December 1, 2015, to Ameren Illinois Mortgage for Series II December 14, 2015 Form 8-K, Exhibit 4.5, File No. 1-3672 4.72 AmerenAmeren Illinois Supplemental Indenture, dated as of October 25, 2017, to the Ameren Illinois Mortgage September 30, 2017 Form 10-Q, Exhibit 4.1, File No. 1-3672 4.73 AmerenAmeren Illinois Supplemental Indenture, dated as of November 1, 2017, to the Ameren Illinois Mortgage for 3.70% First Mortgage Bonds due 2047 November 28, 2017 Form 8-K, Exhibit 4.2, File No. 1-3672 4.74 AmerenAmeren Illinois Supplemental Indenture, dated as of May 1, 2018, to Ameren Illinois Mortgage for 3.80% First Mortgage Bonds due 2028 May 22, 2018 Form 8-K, Exhibit 4.2, File No. 1-3672 4.75 AmerenAmeren Illinois Supplemental Indenture, dated May 1, 2018, to Ameren Illinois Mortgage for 3.80% First Mortgage Bonds due 2028 May 22, 2018 Form 8-K, Exhibit 4.2, File No. 1-3672 4.76 AmerenAmeren Illinois Supplemental Indenture, dated as of November 1, 2018, to Ameren Illinois Mortgage for 4.50% First Mortgage Bonds due 2049 November 15, 2018 Form 8-K, Exhibit 4.2, File No. 1-3672 4.77 AmerenAmeren Illinois Supplemental Indenture, dated as of November 1, 2019, to the Ameren Illinois Mortgage for 3.25% First Mortgage Bonds due 2050 November 26, 2019 Form 8-K, Exhibit 4.2, File No. 1-3672 4.78 AmerenAmeren Illinois Supplemental Indenture, dated as of October 15, 2019, to Ameren Illinois Mortgage for First Mortgage Bonds, Senior Notes Series CILCO-AA September 30, 2019 10-Q, Exhibit 4.3, File No. 1-3672 4.79 AmerenAmeren Illinois Supplemental Indenture, dated as of December 15, 2019, to the Ameren Illinois Mortgage 4.80 AmerenAmeren Illinois Indenture, dated as of June1, 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 IllinoisIndenture) June19, 2006 Form 8-K, Exhibit 4.4, FileNo.1-3004 4.81 AmerenAmeren Illinois First Supplemental Indenture, dated as of October 1, 2010, to the Ameren IllinoisIndenture for Series CIPS-AA and CIPS-CC October 7, 2010 Form 8-K, Exhibit 4.5, FileNo.1-14756 4.82 AmerenAmeren Illinois Second Supplemental Indenture to the Ameren IllinoisIndenture dated as of July21, 2011 September 30, 2011 Form 10-Q, Exhibit 4.2, File No.1-3672 4.83 AmerenAmeren Illinois Third Supplemental Indenture to the Ameren Illinois Indenture dated as of May 15, 2012 Exhibit 4.83, File No. 333-182258 4.84 AmerenAmeren Illinois Fourth Supplemental Indenture to the Ameren Illinois Indenture, dated as of October 15, 2019 September 30, 2019 10-Q, Exhibit 4.4, File No. 1-3672 4.85 AmerenAmeren Illinois Ameren IllinoisIndenture Company Order dated August 20, 2012, establishing the 2.70% Senior Secured Notes due 2022(including the global note) August 20, 2012 Form 8-K, Exhibits 4.2 and 4.3, FileNo.1-3672 4.86 AmerenAmeren 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. 1-3672 4.87 AmerenAmeren Illinois Ameren Illinois Indenture Company Order dated June 30, 2014, establishing the 4.30% Senior Secured Notes due 2044(including the global note) June 30, 2014 Form 8-K, Exhibits 4.2 and 4.3, File No. 1-3672 4.88 AmerenAmeren Illinois Ameren Illinois Indenture Company Order dated December 10, 2014, establishing the 3.25% Senior Secured Notes due 2025(including the global note) December 10, 2014 Form 8-K, Exhibits 4.2 and 4.3, File No. 1-3672 4.89 AmerenAmeren Illinois Ameren Illinois Indenture Company Order dated December 14, 2015, establishing the 4.15% Senior Secured Notes due 2046(including the global note) December 14, 2015 Form 8-K, Exhibits 4.2 and 4.3, File No. 1-3672 4.90 AmerenAmeren 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) December 6, 2016 Form 8-K, Exhibits 4.2 and 4.3, File No. 1-3672 4.91 AmerenAmeren Illinois Ameren Illinois Indenture Company Order dated October 30, 2019, establishing Senior Notes Series CILCO-AA (including the global note) September 30, 2019 10-Q, Exhibits 4.5 and 4.6, File No. 1-3672 4.92 Ameren Description of Ameren Securities 4.93 Ameren Missouri Description of Ameren Missouri Securities 4.94 Ameren Illinois Description of Ameren Illinois Securities 10.1 Ameren Companies Fourth Amended Ameren Corporation System Utility Money Pool Agreement, as amended January 30, 2014 June 30, 2015 Form 10-Q, Exhibit 10.1, FileNo.1-14756 10.2 AmerenAmeren Missouri Amended and Restated Credit Agreement, dated as of December 9, 2019, by and among Ameren, Ameren Missouri and JPMorgan Chase Bank, N.A., as agent, and the lenders party thereto. December 11, 2019 Form 8-K, Exhibit 10.1, File No. 1-2967 10.3 AmerenAmeren Illinois Amended and Restated Credit Agreement, dated as of December 9, 2019, by and among Ameren, Ameren Illinois and JPMorgan Chase Bank, N.A., as agent, and the lenders party thereto. December 11, 2019 Form 8-K, Exhibit 10.2, File No. 1-3672 10.4 Ameren Illinois Sign On and Retention Bonus Agreement, effective March 1, 2018, between Bhavani Amirthalingam and Ameren Services Company March 31, 2019 10-Q, Exhibit 10.1, File No. 1-3672 10.5 Ameren Forward Sale Agreement, dated August 5, 2019, between Ameren and Goldman Sachs & Co. LLC, as the Forward Purchaser August 7, 2019 Form 8-K, Exhibit 10 File No. 1-14756 10.6 Ameren *Summary Sheet of Ameren Corporation Non-Management Director Compensation effective as of January 1, 2020 10.7 Ameren *Ameren's Deferred Compensation Plan for Members of the Board of Directors amended and restated effective January 1, 2009, dated June 13, 2008 June 30, 2008 Form 10-Q, Exhibit 10.3, FileNo.1-14756 10.8 Ameren *Amendment dated October 12, 2009, to Ameren's Deferred Compensation Plan for Members of the Board of Directors, effective January 1, 2010 2009 Form 10-K, Exhibit 10.15, FileNo.1-14756 10.9 Ameren *Amendment dated October 14, 2010, to Ameren's Deferred Compensation Plan for Members of the Board of Directors 2010 Form 10-K, Exhibit 10.15, FileNo.1-14756 10.10 Ameren *Ameren's Deferred Compensation Plan as amended and restated effective January 1, 2010 October 14, 2009 Form 8-K, Exhibit 10.1, File No.1-14756 10.11 Ameren *Amendment dated October 14, 2010 to Ameren's Deferred Compensation Plan 2010 Form 10-K, Exhibit 10.17, FileNo.1-14756 10.12 Ameren Companies *2015 Ameren Executive Incentive Plan 2014 Form 10-K, Exhibit 10.13, File No. 1-14756 10.13 Ameren Companies *2016 Ameren Executive Incentive Plan 2015 Form 10-K, Exhibit 10.13, File No. 1-14756 10.14 Ameren Companies *2017 Ameren Executive Incentive Plan 2016 Form 10-K, Exhibit 10.13, File No. 1-14756 10.15 Ameren Companies *2018 Ameren Executive Incentive Plan 2017 Form 10-K, Exhibit 10.13, File No. 1-14756 10.16 Ameren Companies *2019 Ameren Executive Incentive Plan 2018 Form 10-K, Exhibit 10.14, File No. 1-14756 10.17 Ameren Companies *2020 Ameren Short-Term Incentive Plan 10.18 Ameren Companies *2015 Base Salary Table for Named Executive Officers 2014 Form 10-K, Exhibit 10.17, File No. 1-14756 10.19 Ameren Companies *2016 Base Salary Table for Named Executive Officers 2015 Form 10-K, Exhibit 10.17, File No. 1-14756 10.20 Ameren Companies *2017 Base Salary Table for Named Executive Officers 2016 Form 10-K, Exhibit 10.17, File No. 1-14756 10.21 Ameren Companies *2018 Base Salary Table for Named Executive Officers 2017 Form 10-K, Exhibit 10.17, File No. 1-14756 10.22 Ameren Companies *2019 Base Salary Table for Named Executive Officers 2018 Form 10-K, Exhibit 10.19, File No. 1-14756 10.23 Ameren Companies *2020 Base Salary Table for Named Executive Officers 10.24 Ameren Companies *Second Amended and Restated Ameren Corporation Change of Control Severance Plan 2008 Form 10-K, Exhibit 10.37, FileNo.1-14756 10.25 Ameren Companies *First Amendment dated October 12, 2009, to the Second Amended and Restated Ameren Change of Control Severance Plan October 14, 2009 Form 8-K, Exhibit 10.2, File No.1-14756 10.26 Ameren Companies Revised Schedule I to Second Amended and Restated Ameren Change of Control Severance Plan, as amended September 30, 2019 10-Q, Exhibit 10.2, File No. 1-14756 10.27 Ameren Companies *Formula for Determining 2015 Target Performance Share Unit Awards to be Issued to Named Executive Officers 2014 Form 10-K, Exhibit 10.24, File No. 1-14756 10.28 Ameren Companies *Formula for Determining 2016 Target Performance Share Unit Awards to be Issued to Named Executive Officers 2015 Form 10-K, Exhibit 10.24, File No. 1-14756 10.29 Ameren Companies *Formula for Determining 2017 Target Performance Share Unit Awards to be Issued to Named Executive Officers 2016 Form 10-K, Exhibit 10.24, File No. 1-14756 10.30 Ameren Companies *Formula for Determining 2018 Target Performance Share Unit and Restricted Stock Unit Awards to be Issued to Named Executive Officers 2017 Form 10-K, Exhibit 10.24, File No. 1-14756 10.31 Ameren Companies *Formula for Determining 2019 Target Performance Share Unit and Restricted Stock Unit Awards to be Issued to Named Executive Officers 2018 Form 10-K, Exhibit 10.27, File No. 1-14756 10.32 Ameren Companies *Formula for Determining 2020 Target Performance Share Unit and Restricted Stock Unit Awards to be Issued to Named Executive Officers 10.33 Ameren Companies *Ameren Corporation 2014 Omnibus Incentive Compensation Plan Exhibit 99, File No. 333-196515 10.34 Ameren Companies *Form of Performance Share Unit Award Agreement for Awards Issued in 2015 pursuant to 2014 Omnibus Incentive Compensation Plan 2014 Form 10-K, Exhibit 10.31, File No. 1-14756 10.35 Ameren Companies *Form of Performance Share Unit Award Agreement for Awards Issued in 2016 pursuant to 2014 Omnibus Incentive Compensation Plan 2015 Form 10-K, Exhibit 10.31, File No. 1-14756 10.36 Ameren Companies *Form of Performance Share Unit Award Agreement for Awards Issued in 2017 pursuant to 2014 Omnibus Incentive Compensation Plan 2016 Form 10-K, Exhibit 10.31, File No. 1-14756 10.37 Ameren Companies *Form of Performance Share Unit Award Agreement for Awards Issued in 2018 pursuant to 2014 Omnibus Incentive Compensation Plan December 13, 2017 Form 8-K, Exhibit 10.1, File No. 1-14756 10.38 Ameren Companies *Form of Restricted Stock Unit Award Agreement for Awards Issued in 2018 pursuant to 2014 Omnibus Incentive Compensation Plan December 13, 2017 Form 8-K, Exhibit 10.2, File No. 1-14756 10.39 Ameren Companies *Form of Performance Share Unit Award Agreement for Awards Issued in 2019 pursuant to 2014 Omnibus Incentive Compensation Plan 2018 Form 10-K, Exhibit 10.34, File No. 1-14756 10.40 Ameren Companies *Form of Restricted Stock Unit Award Agreement for Awards Issued in 2019 pursuant to 2014 Omnibus Incentive Compensation Plan 2018 Form 10-K, Exhibit 10.35, File No. 1-14756 10.41 Ameren Companies *Form of Performance Share Unit Award Agreement for Awards Issued in 2020 pursuant to 2014 Omnibus Incentive Compensation Plan 10.42 Ameren Companies *Form of Restricted Share Unit Award Agreement for Awards Issued in 2020 pursuant to 2014 Omnibus Incentive Compensation Plan 10.43 Ameren Companies *Ameren Corporation Severance Plan for Ameren Officers, effective January 1, 2019 2018 Form 10-K, Exhibit 10.36, File No. 1-14756 10.44 Ameren Companies *Ameren Supplemental Retirement Plan amended and restated effective January 1, 2008, dated June 13, 2008 June 30, 2008 Form 10-Q, Exhibit 10.1, FileNo.1-14756 10.45 Ameren Companies *First Amendment to amended and restated Ameren Supplemental Retirement Plan, dated October 24, 2008 2008 Form 10-K, Exhibit 10.44, FileNo.1-14756 10.46 Ameren Companies *Ameren Corporation 2006 Omnibus Incentive Compensation Plan February 16, 2006 Form 8-K, Exhibit 10.3, File No. 1-14756 21.1 Ameren Companies Subsidiaries of Ameren 23.1 Ameren Consent of Independent Registered Public Accounting Firm with respect to Ameren 23.2 Ameren Missouri Consent of Independent Registered Public Accounting Firm with respect to Ameren Missouri 23.3 Ameren Illinois Consent of Independent Registered Public Accounting Firm with respect to Ameren Illinois 24.1 Ameren Powers of Attorney with respect to Ameren 24.2 Ameren Missouri Powers of Attorney with respect to Ameren Missouri 24.3 Ameren Illinois Powers of Attorney with respect to Ameren Illinois 31.1 Ameren Rule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer of Ameren 31.2 Ameren Rule 13a-14(a)/15d-14(a) Certification of Principal Financial Officer of Ameren 31.3 Ameren Missouri Rule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer of Ameren Missouri 31.4 Ameren Missouri Rule 13a-14(a)/15d-14(a) Certification of Principal Financial Officer of Ameren Missouri 31.5 Ameren Illinois Rule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer of Ameren Illinois 31.6 Ameren Illinois Rule 13a-14(a)/15d-14(a) Certification of Principal Financial Officer of Ameren Illinois 32.1 Ameren Section 1350 Certification of Principal Executive Officer and Principal Financial Officer of Ameren 32.2 Ameren Missouri Section 1350 Certification of Principal Executive Officer and Principal Financial Officer of Ameren Missouri 32.3 Ameren Illinois Section 1350 Certification of Principal Executive Officer and Principal Financial Officer of Ameren Illinois 99.1 Ameren Companies Amended and Restated Tax Allocation Agreement, dated as of November 21, 2013 2013 Form 10-K, Exhibit 99.1, File No. 1-14756