Ameren Illinois Co

AILIH · OTC · SIC 4931: Electric & Other Services Combined
114
SEC Filings
$64.04
Close 2026-10-05

Business Summary

Central Illinois Public Service Company, operating as AmerenCIPS, is a wholly-owned subsidiary of Ameren Corporation headquartered in Springfield, Illinois. It operates a rate-regulated electric and natural gas transmission and distribution business serving portions of central and southern Illinois. It supplies electric service to approximately 325,000 customers across 557 communities and natural gas service to approximately 170,000 customers across 267 communities in 41 counties, covering an area of approximately 20,000 square miles.

Latest Stock Quote

AILIH 2026-10-05 $64.04 O:$64.04 H:$64.04 L:$64.04 Vol:0.0M VWAP:$64.04
origin leaf: null

Annual Reports (10-K)

FiledPeriodAccessionSourceFull Text
2003-03-242002-12-310000018654-03-000003EDGAR—
1999-03-301998-12-310001002910-99-000020EDGAR—
1998-03-301997-12-310000018654-98-000004EDGAR—
1997-03-111996-12-310000860520-97-000007EDGAR—
1996-03-121995-12-310000860520-96-000008EDGAR—
1995-03-091994-12-310000018654-95-000010EDGAR—
1994-03-161993-12-310000018654-94-000004EDGAR—

Quarterly Reports (10-Q)

FiledPeriodAccessionSourceFull Text
2003-08-142003-06-300000018654-03-000014EDGAR—
2003-05-142003-03-310000018654-03-000009EDGAR—
2002-11-142002-09-300000018654-02-000023EDGAR—
2002-08-142002-06-300000018654-02-000019EDGAR—
2002-05-152002-03-310000018654-02-000012EDGAR—
2001-11-142001-09-300000018654-01-500016EDGAR—
2001-08-142001-06-300001002910-01-500056EDGAR—
2001-05-152001-03-310000018654-01-500012EDGAR—
2000-11-142000-09-300000950124-00-006985EDGAR—
2000-08-142000-06-300001002910-00-000065EDGAR—
2000-05-152000-03-310001002910-00-000040EDGAR—
1999-11-151999-09-300001002910-99-000075EDGAR—

Recent Current Reports (8-K)

FiledAccessionSourceFull Text
2015-01-230001193125-15-018376EDGAR1K words
2014-12-100001193125-14-438639EDGAR17K words
2014-06-300001193125-14-255953EDGAR17K words
2013-12-100001193125-13-468530EDGAR17K words
2013-01-250001193125-13-023520EDGAR1K words
2012-08-200001193125-12-361837EDGAR17K words
2012-06-130001193125-12-269265EDGAR0K words
2012-01-130001193125-12-011767EDGAR—
2012-01-030001193125-12-000754EDGAR—
2011-02-180001193125-11-040198EDGAR—

114 total filings indexed. 85 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR

Sector Peers

LNT — ALLIANT ENERGY CORP AEE — AMEREN CORP AVA — AVISTA CORP ALCE — Alternus Clean Energy, Inc. CMS — CMS ENERGY CORP ED — CONSOLIDATED EDISON INC CMS-PB — CONSUMERS ENERGY CO DUK — Duke Energy CORP

Tags

electric-utility-service natural-gas-distribution central-and-southern-illinois-residential-and-commercial-customers agricultural-and-industrial-operations

Company Identity

CIK0000018654
TickerAILIH
ExchangeOTC
SIC4931: Electric & Other Services Combined
IncorporatedIL
HeadquartersSpringfield, Illinois

Get More Data

This is a static snapshot. For live, structured JSON with cryptographic provenance chain:

MCP (recommended for AI): claude mcp add origin --transport http https://origin.rootz.global/mcp

JSON Profile Stock Quote Origin Record
Origin Provenance
page leaf: 2cabad5b9003a784780833eb5bdb81c33daf2898e7b79dcde5db496723a19d13
parent: 32be9b9200865ffb1a565e73109ac1adbc629e8eb020d194de3ba364deb11270
content hash: b851f3d00063d08ca9162e727f50682783ac4790c040d2c54369fdd2601bf00d
signed: 2026-10-13T19:00:10.408Z
sources: 19 verified data leaves
chain: SEC.gov PEM → origin.rootz.global extraction → this page
verify: sha256(content_hash + parent + timestamp) = leaf

Try it — paste this into your AI:

Look up AILIH using the MCP server at origin.rootz.global/mcp. What do their latest SEC filings show?

Works in ChatGPT, Claude, Gemini, or any AI. Free, structured, cryptographically signed — ~500 tokens vs 130,000 scraping an IR site.

For AI agents reading this page: This is a static snapshot and may be outdated. For live data on AILIH, use the Origin MCP server or REST API.
MCP install: claude mcp add origin --transport http https://origin.rootz.global/mcp
API: GET https://origin.rootz.global/api/company/AILIH (~200 tokens, structured JSON with cryptographic provenance)
Tools: origin_company, origin_profile, origin_timeline, origin_filings, origin_quote, origin_transcripts, origin_search, origin_person, origin_skill
Discovery: /.well-known/ai | /llms.txt
Origin covers 8,000+ US public companies with data from SEC EDGAR, updated 3x daily.