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Company · AILIH · CIK 18654

Ameren Illinois Co (AILIH) SEC filings and CIK.

AILIH’s SEC Central Index Key (CIK) is 0000018654, or 18654 without leading zeros. The SEC’s ticker file lists it as Ameren Illinois Co. The same CIK also trades as AILLI, AILLM, AILLN, AILIM, AILLO, AILIN, AILLP, AILIO, AILIP.

Ticker
AILIH
CIK
0000018654
Other tickers
AILLI, AILLM, AILLN, AILIM, AILLO, AILIN, AILLP, AILIO, AILIP
Insider transactions, Q3 2026
None loaded

Recent filings we observed

From our record of EDGAR’s latest-filings feed and sampled daily indexes. Not a complete filing history; use the filings API for that.
FiledFormAccession
2026-11-0610-Q0001002910-26-000032

Get AILIH SEC data through the API

Filing history
curl "https://sec-api.dev/api/v1/filings?cik=18654&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"
Company profile
curl "https://sec-api.dev/api/v1/companies/18654" \
  -H "Authorization: Bearer $SEC_API_KEY"
Reported XBRL facts
curl "https://sec-api.dev/api/v1/facts/18654?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Ameren Illinois Co on SEC.gov

Questions

What is AILIH’s CIK number?

AILIH’s SEC Central Index Key (CIK) is 0000018654, or 18654 without leading zeros. The SEC’s ticker file lists it as Ameren Illinois Co. The same CIK also trades as AILLI, AILLM, AILLN, AILIM, AILLO, AILIN, AILLP, AILIO, AILIP.

How do I find Ameren Illinois Co’s 10-K?

Request /api/v1/filings?cik=18654&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.

Ticker and CIK: SEC company_tickers.json, cached 2026-11-02. Tickers can move between entities; the CIK identifies the filer.

Plain-text version for agents and LLMs: /companies/ailih.md

Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.