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Ameren Illinois Co — 10-K Filings

30 10-K filings on record

This page lists all 10-K filings submitted to the SEC by Ameren Illinois Co (AILIP), sorted by most recent first. Each row links to the full filing on EdgarLookup. Ameren Illinois Co has filed 30 10-K documents with the SEC since 1994. To view all SEC filings by Ameren Illinois Co, see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-K405 10-Q 10-Q/A 11-K 3 424B2 424B3 424B5 425 5 8-A12G 8-K 8-K/A ARS CORRESP DEF 14A DEF 14C DEFA14C EFFECT FWP PRE 14A RW S-3 S-3/A S-3ASR S-3DPOS S-4 S-4/A SC 13G SC 13G/A U-3A-2 U-6B-2 UPLOAD
Form Description Accession Number Filed Period
10-K 10-K 0001002910-26-000009 Feb 18, 2026 Dec 31, 2025
10-K 10-K 0001002910-25-000055 Feb 18, 2025 Dec 31, 2024
10-K 10-K 0001002910-24-000056 Feb 29, 2024 Dec 31, 2023
10-K 10-K 0001002910-23-000053 Feb 22, 2023 Dec 31, 2022
10-K 10-K 0001002910-22-000038 Feb 23, 2022 Dec 31, 2021
10-K 10-K 0001002910-21-000065 Feb 22, 2021 Dec 31, 2020
10-K 10-K 0001002910-20-000077 Feb 28, 2020 Dec 31, 2019
10-K 10-K 0001002910-19-000094 Feb 26, 2019 Dec 31, 2018
10-K 10-K 0001002910-18-000069 Feb 28, 2018 Dec 31, 2017
10-K 10-K 0001002910-17-000054 Feb 28, 2017 Dec 31, 2016
10-K 10-K 0001002910-16-000205 Feb 26, 2016 Dec 31, 2015
10-K 10-K 0001002910-15-000075 Mar 2, 2015 Dec 31, 2014
10-K 10-K 0001002910-14-000054 Mar 3, 2014 Dec 31, 2013
10-K 10-K 0001445305-13-000414 Mar 1, 2013 Dec 31, 2012
10-K FORM 10-K 0001193125-12-085489 Feb 28, 2012 Nov 23, 2011
10-K FORM 10-K 0001193125-11-044880 Feb 24, 2011 Dec 31, 2010
10-K FORM 10-K 0001193125-10-043155 Feb 26, 2010 Dec 31, 2009
10-K FORM 10-K 0001193125-09-042636 Mar 2, 2009 Dec 31, 2008
10-K ANNUAL REPORT 0000950137-08-003079 Feb 29, 2008 Dec 31, 2007
10-K FORM 10-K 0000950137-07-003131 Mar 1, 2007 Dec 31, 2006
10-K FORM 10-K 0001193125-06-047272 Mar 7, 2006 Dec 31, 2005
10-K AMEREN 10-K 12-31-2004 0001002910-05-000168 Mar 9, 2005 Dec 31, 2004
10-K AMC COMBINED YEAR 2003 0001002910-04-000118 Mar 9, 2004 Dec 31, 2003
10-K CIPS' 10-K 12/31/02 0000018654-03-000003 Mar 24, 2003 Dec 31, 2002
10-K FORM 10-K 0001002910-99-000020 Mar 30, 1999 Dec 31, 1998
10-K — 0000018654-98-000004 Mar 30, 1998 Dec 31, 1997
10-K — 0000860520-97-000007 Mar 11, 1997 Dec 31, 1996
10-K — 0000860520-96-000008 Mar 12, 1996 Dec 31, 1995
10-K — 0000018654-95-000010 Mar 9, 1995 Dec 31, 1994
10-K 10-K 0000018654-94-000004 Mar 16, 1994 Dec 31, 1993