Ameren Corporation (AEE)

Missouri and Illinois utility with service company. Read October 19, 2026 from the annual report for the period ending December 31, 2025, filed February 18, 2026. Ranked 7 of the 30 Utilities companies read so far, by the share within reach now.

A utility whose filing counts 8,913 employees by subsidiary with 1,978 at its service company, so the two utilities are read at electric power with a gas share and the service company at management of companies.

The figures on this page come from the company's own annual report and from BLS staffing patterns for its industries, never from a roster. They are estimates with a stated method. Nothing here says what the company will do: within reach is not a forecast of jobs lost or of savings.

What follows from the reading

Share of working time within reach of AI, on the long-run pace at four in five: 23% now, 39% at the end of 2027, 46% at the end of 2028, 50% at the end of 2030. By the patterns, the work is about 50% desk work, 16% people work and 34% body work. These are the site's industry estimates weighted by the shares below: estimates with a stated method and range, not a forecast of what the company will do. By the same patterns, at the end of 2028 about 47% of the working time stays with people (conversation, in-person and hands-on work), 42% becomes checking a model's work and 6% could be handed over with lighter checks, from the industries' own figures, not the company's roles.

Headcount

8,913 employees as of December 31, 2025 (stated). The filing describes only its Missouri and Illinois service territories, so the U.S. share is recorded as 1 with a flag; no count by country is stated.

The filing: “The following table presents our employee count and their average tenure as of December 31, 2025, and the attrition rate in 2025: Ameren 8,913; Ameren Missouri 3,767; Ameren Illinois 3,168; Ameren Services 1,978.”

The workforce as industry patterns

What the filing says about the workforce: 8,913 employees as of December 31, 2025 (8,981 a year earlier): Ameren Missouri 3,767, Ameren Illinois 3,168, Ameren Services 1,978, with average tenure of 11 to 14 years and attrition of 5% to 9%; the majority skilled-craft and STEM-related professional and technical employees; total attrition 6%, mostly retirements; a pension contract transfer covered about 4,200 former employees.

Companies read with the same leading pattern

Other companies whose largest staffing pattern is also Electric Power Generation, Transmission and Distribution, largest first, each read from its own annual report. Within reach now and at the end of 2028, long-run pace, four in five.

• The Southern Company (SO, 29,800 employees)22% now, 45% by 2028
• PG&E Corporation (PCG, 29,010 employees)21% now, 42% by 2028
• Duke Energy Corporation (DUK, 26,441 employees)21% now, 41% by 2028
• Exelon Corporation (EXC, 20,571 employees)22% now, 45% by 2028
• American Electric Power Company, Inc. (AEP, 17,581 employees)24% now, 50% by 2028
• NextEra Energy, Inc. (NEE, 17,400 employees)21% now, 41% by 2028
• NRG Energy, Inc. (NRG, 16,702 employees)19% now, 32% by 2028
• Consolidated Edison, Inc. (ED, 15,407 employees)21% now, 42% by 2028

What the filing says about AI

6 sentences in the filing name AI. The filing names artificial intelligence only in its lists of factors that could affect results and its forward-looking statement caveats, among regulatory, legislative and operating risks; the three sentences shown describe no use of its own.

• “The following factors, in addition to those discussed within Risk Factors under Part I, Item 1A, of this report, and elsewhere in this report and in our other filings with the SEC, could cause actual results to differ materially from management expectations suggested in such forward-looking statements: regulatory, judicial, or legislative actions, and any changes in regulatory policies and rate...”
• “These issues include: the potential for changes in laws, regulations, enforcement efforts, and policies at the federal, state, and international levels, including but not limited to environmental laws and the presidential administration's change in federal domestic energy policy to support investments in fossil fuel infrastructure and the effect it may have on the ability to construct and/or ac...”
• “Operation of these facilities involves many risks, including: facility shutdowns due to operator error, or a failure of equipment or processes; longer-than-anticipated maintenance outages; failures of equipment that can result in unanticipated liabilities or unplanned outages; aging infrastructure that may require significant expenditures to operate and maintain; natural gas leaks or explosions...”
• “This also includes attacks arising from or generated by artificial intelligence, among various other attempts to compromise systems that can lead to security breaches.”
• “In addition, the increasingly widespread adoption of artificial intelligence technologies, including generative and agentic artificial intelligence, may increase, accelerate, or enhance cyber attacks and other operational, legal, privacy, and reputational risks in our industry and worldwide.”

Its annual reports, year by year

Sentences naming AI in each annual report, counted by one rule, beside the median report in the Index that year. Each count links its filing. Every company, by year and sector

• Fiscal 20210median 0
• Fiscal 20220median 0
• Fiscal 20232median 1
• Fiscal 20245median 4
• Fiscal 20256median 10

Headcount by filing year

As reported in each year's annual report, with the filing. A year marked not read had no figure the reading could take from the report's text.

Limits of this reading

• The collector's 4,200 is a count of former employees in a pension contract transfer; the filing's table states 8,913 (rule 2).
• The U.S. share is recorded as 1 because the filing describes only Missouri and Illinois territories; it states no count by country.
• The gas distribution share is by description (c); the utilities' counts are not split by electric and gas.

Source: the company's annual report on EDGAR, accession 0001002910-26-000009, the filing. Read by Claude Fable 5.1 under rubric version 1, by the method. A company can write to info@stratussc.com to have its reading checked against its filing.