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AMEREN CORP

For the period ended Sep 30, 2025. Filed Nov 6, 2025.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2025 · Filed Nov 6, 2025

AEE$114.02+1.0%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Item 6. Exhibits

The documents listed below are being filed or have previously been filed on behalf of the Ameren Companies and are incorporated herein by reference from the documents indicated and made a part hereof. Exhibits not identified as previously filed are filed herewith.

ExhibitDesignationRegistrant(s)Nature of ExhibitPreviously Filed as Exhibit to:
Rule 13a-14(a) / 15d-14(a) Certifications
31.1AmerenRule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer of Ameren
31.2AmerenRule 13a-14(a)/15d-14(a) Certification of Principal Financial Officer of Ameren
31.3Ameren MissouriRule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer and Principal Financial Officer of Ameren Missouri
31.4Ameren IllinoisRule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer of Ameren Illinois
31.5Ameren IllinoisRule 13a-14(a)/15d-14(a) Certification of Principal Financial Officer of Ameren Illinois
Section 1350 Certifications
32.1AmerenSection 1350 Certification of Principal Executive Officer and Principal Financial Officer of Ameren
32.2Ameren MissouriSection 1350 Certification of Principal Executive Officer and Principal Financial Officer of Ameren Missouri
32.3Ameren IllinoisSection 1350 Certification of Principal Executive Officer and Principal Financial Officer of Ameren Illinois
Interactive Data Files
101.INSAmeren CompaniesInline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCHAmeren CompaniesInline XBRL Taxonomy Extension Schema Document
101.CALAmeren CompaniesInline XBRL Taxonomy Extension Calculation Linkbase Document
101.LABAmeren CompaniesInline XBRL Taxonomy Extension Label Linkbase Document
101.PREAmeren CompaniesInline XBRL Taxonomy Extension Presentation Linkbase Document
101.DEFAmeren CompaniesInline XBRL Taxonomy Extension Definition Document
104Ameren CompaniesCover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

The file number references for the Ameren Companies’ filings with the SEC are: Ameren, 1-14756; Ameren Missouri, 1-2967; and Ameren Illinois, 1-3672.

Each registrant hereby undertakes to furnish to the SEC upon request a copy of any long-term debt instrument not listed above that such registrant has not filed as an exhibit pursuant to the exemption provided by Item 601(b)(4)(iii)(A) of Regulation S-K.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.