we're ameren corporation (aee), a st. louis-based, fortune 500 company that powers the quality of life for millions of people throughout illinois and missouri. ameren illinois provides electric distribution and transmission service, as well as natural gas distribution service, while ameren missouri provides vertically integrated electric service, with generating capacity of over 10,200 megawatts, and natural gas distribution service. combined, we serve 2.4 million electric and more than 900,000 natural gas customers in a 64,000 square mile area. we're the largest electric utility in missouri and the second largest in illinois, and we're among the nation's largest investor-owned electric or gas utility.
![Ameren Illinois logo](https://files.capedge.com/10-K/0001002910-23-000053/aee-20221231_g1.jpg)
Company profile
Ticker
AILLN, AILIN, AILLM, AILIO, AILIH, AILLO, AILIM, AILLI
Exchange
Website
CEO
Richard Mark
Employees
Incorporated
Location
Fiscal year end
Industry (SIC)
Former names
CENTRAL ILLINOIS PUBLIC SERVICE CO
SEC CIK
Corporate docs
Subsidiaries
Ameren Corporation • Ameren Development Company • Missouri Central Railroad Company • QST Enterprises Inc. • Ameren EIP Investment, LLC • Ameren Accelerator Investments, LLC • AmerenEnergy Medina Valley Cogen, L.L.C. • Ameren Transmission Company, LLC • ATX East, LLC • ATX Southwest, LLC ...
IRS number
370211380
AILLN stock data
Latest filings (excl ownership)
10-Q
2024 Q2
Quarterly report
5 Aug 24
8-K
Other Events
27 Jun 24
8-K
Other Events
21 Jun 24
424B2
Prospectus for primary offering
18 Jun 24
FWP
Free writing prospectus
17 Jun 24
424B3
Prospectus supplement
17 Jun 24
8-K
Submission of Matters to a Vote of Security Holders
13 May 24
10-Q
2024 Q1
Quarterly report
6 May 24
DEFA14C
Additional information
5 Apr 24
DEF 14C
Information statement
5 Apr 24
Latest ownership filings
3
Leonard P Singh
12 Aug 22
3
Chonda J Nwamu
24 Jan 19
11-K
Annual report of employee stock purchases
28 Jun 00
11-K
Annual report of employee stock purchases
28 Jun 00
11-K
Annual report of employee stock purchases
29 Jun 99
11-K
Annual report of employee stock purchases
29 Jun 99
11-K
Annual report of employee stock purchases
29 Jun 99
11-K
Annual report of employee stock purchases
27 Jun 97
11-K
Annual report of employee stock purchases
27 Jun 96
11-K
Annual report of employee stock purchases
29 Jun 95
Financial summary
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