Ameren

Short-term Debt and Liquidity 115 Note 5.

SEC original ↗Ameren — 10-K Annual report10-KFeb 18, 2026

Long-term Debt and Equity Financings 118 Note 6.

SEC original ↗Ameren — 10-K Annual report10-KFeb 18, 2026

DRPlus Ameren Corporation s dividend reinvestment and direct stock purchase plan.

SEC original ↗Ameren — 10-K Annual report10-KFeb 18, 2026

Money pool Borrowing agreements among Ameren and its subsidiaries to coordinate and provide for certain short-term cash and working capital requirements.

SEC original ↗Ameren — 10-K Annual report10-KFeb 18, 2026

The rate base on which the return is calculated incorporates qualifying capital expenditures not included in base rates, as well as changes in total accumulated depreciation excluding retirements and plant-related deferred income taxes.

SEC original ↗Ameren — 10-K Annual report10-KFeb 18, 2026

TSR Total shareholder return, the cumulative return of a common stock or index over a specified period of time assuming all dividends are reinvested.

SEC original ↗Ameren — 10-K Annual report10-KFeb 18, 2026

We are executing across all elements of our strategy, including by hardening the grid, expanding our balanced generation portfolio, and supporting economic development, said Martin J.

SEC original ↗Ameren — Earnings release (8-K exhibit)EX-99Jul 31, 2025

These efforts reinforce our commitment to investing in a reliable and resilient energy future that provides value for our customers and communities.

SEC original ↗Ameren — Earnings release (8-K exhibit)EX-99Jul 31, 2025

These statements include (without limitation) statements as to future expectations, beliefs, plans, projections, strategies, targets, estimates, objectives, events, conditions, and financial performance.

SEC original ↗Ameren — Earnings release (8-K exhibit)EX-99Jul 31, 2025

Earnings guidance for 2025 assumes normal temperatures for the last six months of the year and is subject to the effects of, among other things regulatory, judicial and legislative actions energy center and energy transmission and distribution operations energy, economic, capital and credit market conditions customer usage severe storms market returns on company-owned life insurance investments unusual or otherwise unexpected gains or losses and other risks and uncertainties outlined, or referred to, in the Forward-looking Statements section of this press release.

SEC original ↗Ameren — Earnings release (8-K exhibit)EX-99Jul 31, 2025

Page 4 of 6 Forward-looking Statements Statements in this release not based on historical facts are considered forward-looking and, accordingly, involve risks and uncertainties that could cause actual results to differ materially from those discussed.

SEC original ↗Ameren — Earnings release (8-K exhibit)EX-99Jul 31, 2025

Given these uncertainties, undue reliance should not be placed on these forward-looking statements.

SEC original ↗Ameren — Earnings release (8-K exhibit)EX-99Jul 31, 2025

Legal Proceedings 34 Item 4.

SEC original ↗Ameren — 10-K Annual report10-KFeb 18, 2026

AMF Ameren Missouri Securitization Funding I, LLC, a special purpose entity wholly owned by Ameren Missouri, was formed in 2024, for the purpose of issuing and servicing securitized utility tariff bonds related to Rush Island Energy Center retirement costs.

SEC original ↗Ameren — 10-K Annual report10-KFeb 18, 2026

PGA Purchased gas adjustment tariffs, a rate-adjustment mechanism that permits prudently incurred natural gas costs to be recovered directly from utility customers without a traditional regulatory rate review, subject to regulatory prudence reviews.

SEC original ↗Ameren — 10-K Annual report10-KFeb 18, 2026