Ameren Illinois Co (AILIH) Corporate Subsidiaries

Ameren Illinois Co (AILIH) is a publicly traded company on the OTC, categorized under SIC 4931 (Electric & Other Services Combined). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.

Ticker: AILIH CIK: 18654 Exchange: OTC SIC 4931: Electric & Other Services Combined Fiscal Year End: 12/31 State: IL

Independent PCAOB Auditor

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Audit Firm PricewaterhouseCoopers LLP
Auditor SinceSince 12/31/2016 12:00:00 AM
Lead Engagement PartnerJohn Koppin
Audit LocationSaint Louis, Missouri, United States

Latest SEC EDGAR Filings

Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions
Form Filing Date Reporting Period Description Accession Number Actions
8-K 2026-08-24 2026-08-24 FORM 8-K 0001104659-26-100236 View SEC Doc Filr Page
424B2 2026-08-18 — 424B2 0001104659-26-098262 View SEC Doc Filr Page
FWP 2026-08-17 — FWP 0001104659-26-097908 View SEC Doc Filr Page
424B3 2026-08-17 — 424B3 0001104659-26-097582 View SEC Doc Filr Page
S-3ASR 2026-08-04 — S-3ASR 0001104659-26-090283 View SEC Doc Filr Page
10-Q 2026-08-03 2026-06-30 10-Q 0001002910-26-000023 View SEC Doc Filr Page
8-K 2026-05-18 2026-05-14 FORM 8-K 0001104659-26-063184 View SEC Doc Filr Page
10-Q 2026-05-08 2026-03-31 10-Q 0001002910-26-000015 View SEC Doc Filr Page
DEFA14C 2026-03-31 — DEFA14C 0001104659-26-037793 View SEC Doc Filr Page
DEF 14C 2026-03-31 2026-05-14 DEF 14C 0001104659-26-037783 View SEC Doc Filr Page
10-K 2026-02-18 2025-12-31 10-K 0001002910-26-000009 View SEC Doc Filr Page
8-K 2025-12-10 2025-12-10 FORM 8-K 0001104659-25-119977 View SEC Doc Filr Page
10-Q 2025-11-06 2025-09-30 10-Q 0001002910-25-000129 View SEC Doc Filr Page
8-K 2025-09-26 2025-09-26 FORM 8-K 0001104659-25-093779 View SEC Doc Filr Page
424B2 2025-09-16 — 424B2 0001104659-25-090464 View SEC Doc Filr Page
FWP 2025-09-15 — FWP 0001104659-25-090044 View SEC Doc Filr Page
424B3 2025-09-15 — 424B3 0001104659-25-089789 View SEC Doc Filr Page
10-Q 2025-08-04 2025-06-30 10-Q 0001002910-25-000112 View SEC Doc Filr Page
8-K 2025-05-12 2025-05-08 FORM 8-K 0001104659-25-046956 View SEC Doc Filr Page
10-Q 2025-05-05 2025-03-31 10-Q 0001002910-25-000098 View SEC Doc Filr Page
DEFA14C 2025-03-25 — DEFA14C 0001104659-25-027829 View SEC Doc Filr Page
DEF 14C 2025-03-25 2025-05-08 DEF 14C 0001104659-25-027828 View SEC Doc Filr Page
8-K 2025-03-03 2025-03-03 FORM 8-K 0001104659-25-019676 View SEC Doc Filr Page
424B2 2025-02-25 — 424B2 0001104659-25-016889 View SEC Doc Filr Page
FWP 2025-02-24 — FWP 0001104659-25-016549 View SEC Doc Filr Page