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Operating as Ameren Illinois, the Ameren Illinois Company is involved in the regulated provision of electricity throughout Illinois, which includes generating power, transmitting it across grids, and distributing it to end-users. The company also handles the distribution of natural gas. It delivers electricity to approximately 1.2 million customers and supplies natural gas to around 0.8 million customers across a vast 43,700 square-mile region spanning central and eastern Illinois. Initially known as Central Illinois Public Service Company, the firm rebranded to Ameren Illinois Company in October 2010. Founded in 1902, its main offices are situated in Collinsville, Illinois. Ameren Illinois Company operates as a division of Ameren Corporation.
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FAQ
What is Ameren Illinois Company stock price today?▼
The current price of AILLN is $77.07 USD — it has increased by +0% in the past 24 hours. Watch Ameren Illinois Company stock price performance more closely on the chart.
What is Ameren Illinois Company stock ticker?▼
Depending on the exchange, the stock ticker may vary. For instance, on OTC Link exchange Ameren Illinois Company stocks are traded under the ticker AILLN.
Is Ameren Illinois Company stock price growing?▼
AILLN stock has risen by +0.04% compared to the previous week, the month change is a -1.22% fall, over the last year Ameren Illinois Company has showed a -1.85% decrease.
What is Ameren Illinois Company market cap?▼
Today Ameren Illinois Company has the market capitalization of 21.33B
What were Ameren Illinois Company earnings last quarter?▼
AILLN earnings for the last quarter are 3.1 USD per share, whereas the estimation was 0 USD resulting in a +∞% surprise. The estimated earnings for the next quarter are N/A USD per share.
What is Ameren Illinois Company revenue for the last year?▼
Ameren Illinois Company revenue for the last year amounts to 8.8B USD.
What is Ameren Illinois Company net income for the last year?▼
AILLN net income for the last year is 1.46B USD.
Does Ameren Illinois Company pay dividends?▼
Yes, AILLN dividends are paid quarterly. The last dividend per share was 1.23 USD. As of today, Dividend Yield (FWD)% is 6.36%.
How many employees does Ameren Illinois Company have?▼
As of September 05, 2026, the company has 3,168 employees.
In which sector is Ameren Illinois Company located?▼
Ameren Illinois Company operates in the Energy sector.
When did Ameren Illinois Company complete a stock split?▼
Ameren Illinois Company has not had any recent stock splits.
Where is Ameren Illinois Company headquartered?▼
Ameren Illinois Company is headquartered in Collinsville, United States.