Company · CIK 18654

# Ameren Illinois Co

| CIK | [18654](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000018654) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 4931 — Electric & Other Services Combined |
| Incorporated in | IL |
| Business address | IL |
| Listed | AILIH (OTC), AILLI (OTC), AILLM (OTC), AILLN (OTC), AILIM (OTC), AILLO (OTC), AILIN (OTC), AILLP (OTC), AILIO (OTC), AILIP (OTC) |
| First annual or quarterly report | 1994-03-16 |

## Offerings

 7 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-297949-01 | Shelf Effective | 2026-08-04 | 2026-08-04 | 1 |
| 333-274977-01 | Shelf Effective | 2023-10-13 | 2023-10-13 | 1 |
| 333-249475-02 | Shelf Effective | 2020-10-14 | 2020-10-14 | 1 |
| 333-222108-01 | Shelf Effective | 2017-12-15 | 2017-12-15 | 1 |
| 333-205139-02 | Shelf Effective | 2015-06-22 | 2015-06-22 | 1 |
| 333-182258-01 | Shelf Effective | 2012-06-21 | 2012-06-21 | 1 |
| 333-155416-03 | Shelf Effective | 2008-11-17 | 2008-11-17 | 1 |

## Filings

 8

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2026-08-04 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/18654/000110465926090283/0001104659-26-090283-index.htm) Shelf registered | 333-297949-01 | 0001104659-26-090283 |
| 2023-10-13 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/18654/000110465923109165/0001104659-23-109165-index.htm) Shelf registered | 333-274977-01 | 0001104659-23-109165 |
| 2020-10-14 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/18654/000110465920114908/0001104659-20-114908-index.htm) Shelf registered | 333-249475-02 | 0001104659-20-114908 |
| 2017-12-15 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/18654/000104746917007702/0001047469-17-007702-index.htm) Shelf registered | 333-222108-01 | 0001047469-17-007702 |
| 2015-06-22 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/18654/000104746915005639/0001047469-15-005639-index.htm) Shelf registered | 333-205139-02 | 0001047469-15-005639 |
| 2012-06-21 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/18654/000119312512278674/0001193125-12-278674-index.htm) Shelf registered | 333-182258-01 | 0001193125-12-278674 |
| 2010-07-08 | [EFFECT](https://www.sec.gov/Archives/edgar/data/18654/999999999510002076/9999999995-10-002076-index.htm) Declared effective | 333-166095 | 9999999995-10-002076 |
| 2008-11-17 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/18654/000110465908071345/0001104659-08-071345-index.htm) Shelf registered | 333-155416-03 | 0001104659-08-071345 |

[All filings of this company](https://equitycapital.markets/filings?cik=18654) · [CSV](https://equitycapital.markets/filings.csv?cik=18654)

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Source page: https://equitycapital.markets/company/18654 · Data: U.S. SEC EDGAR · CC BY 4.0