AILIH on OTC

Ameren Illinois Co

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Last updated Oct 16, 2026.

Overview

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  • TickerAILIH on OTC
  • IndustryElectric & Other Services Combined
  • HeadquartersIL
  • Incorporated inIL2
  • Business address10 Richard Mark Way, Collinsville, Il 622342

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Former names

  • CENTRAL ILLINOIS PUBLIC SERVICE COFeb 28, 1994 to Sep 13, 20102

Recent filings

  1. Aug 18, 2026424B2
  2. Aug 17, 2026424B3
  3. Aug 17, 2026FWP
  4. Mar 31, 2026DEF 14C
  5. Mar 31, 2026DEFA14C
  6. Sep 16, 2025424B2
  7. Sep 15, 2025424B3
  8. Sep 15, 2025FWP
  9. Mar 25, 2025DEF 14C
  10. Mar 25, 2025DEFA14C
  11. Feb 25, 2025424B2
  12. Feb 24, 2025424B3
  13. Feb 24, 2025FWP
  14. Jun 18, 2024424B2
  15. Jun 17, 2024424B3

Every filing from the last three years, summarized. The full record is on SEC EDGAR.1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2