Ameren Illinois Co SEC EDGAR Filings (CIK 0000018654)

SEC EDGAR filings, ownership reports, and insider transactions for Ameren Illinois Co.

Symbol
AILIH, AILLI, AILLM, AILLN, AILIM, AILLO, AILIN, AILLP, AILIO, AILIP on OTC
Industry
Electric & Other Services Combined (Office Of Energy & Transportation)
Business address
10 Richard Mark Way, Collinsville, IL, 62234
State of incorporation
IL
Fiscal year end
31 December
Former names
CENTRAL ILLINOIS PUBLIC SERVICE CO (to 13 Sep 2010)
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Ameren Illinois Co has filed 462 SEC EDGAR filings since 28 Feb 1994

Latest Filings

Recent SEC filings for Ameren Illinois Co including 8-K, 10-Q, 424B2 and more.

Form type Document Filing Description Filing date Reporting date File number(s)
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 10 Dec 2025 10 Dec 2025 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Nov 2025 30 Sep 2025 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 26 Sep 2025 26 Sep 2025 001-03672
424B2 Open 424B2 document | Open XBRL data View SEC filing for 424B2 424B2 16 Sep 2025 333-274977-01
FWP Open FWP document View SEC filing for FWP FWP 15 Sep 2025 333-274977-01
424B3 Open 424B3 document View SEC filing for 424B3 424B3 15 Sep 2025 333-274977-01
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 Aug 2025 30 Jun 2025 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 May 2025 08 May 2025 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 May 2025 31 Mar 2025 001-03672
DEFA14C Open DEFA14C document View SEC filing for DEFA14C DEFA14C 25 Mar 2025 001-03672
DEF 14C Open DEF 14C document | Open XBRL data View SEC filing for DEF 14C DEF 14C 25 Mar 2025 08 May 2025 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 03 Mar 2025 03 Mar 2025 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 25 Feb 2025 333-274977-01
FWP Open FWP document View SEC filing for FWP FWP 24 Feb 2025 333-274977-01
424B3 Open 424B3 document View SEC filing for 424B3 424B3 24 Feb 2025 333-274977-01
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 18 Feb 2025 31 Dec 2024 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 20 Dec 2024 19 Dec 2024 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Nov 2024 30 Sep 2024 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 Aug 2024 30 Jun 2024 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 27 Jun 2024 27 Jun 2024 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 21 Jun 2024 20 Jun 2024 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 18 Jun 2024 333-274977-01
FWP Open FWP document View SEC filing for FWP FWP 17 Jun 2024 333-274977-01
424B3 Open 424B3 document View SEC filing for 424B3 424B3 17 Jun 2024 333-274977-01
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 13 May 2024 09 May 2024 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 May 2024 31 Mar 2024 001-03672
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 18 Apr 2024 001-14756
DEFA14C Open DEFA14C document View SEC filing for DEFA14C DEFA14C 05 Apr 2024 001-03672
DEF 14C Open DEF 14C document | Open XBRL data View SEC filing for DEF 14C DEF 14C 05 Apr 2024 09 May 2024 001-03672
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 27 Mar 2024 001-14756
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 29 Feb 2024 31 Dec 2023 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 18 Dec 2023 14 Dec 2023 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 21 Nov 2023 16 Nov 2023 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Nov 2023 30 Sep 2023 001-03672
S-3ASR Open S-3ASR document View SEC filing for S-3ASR S-3ASR 13 Oct 2023 333-274977-01
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 03 Aug 2023 30 Jun 2023 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 31 May 2023 31 May 2023 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 24 May 2023 333-249475-02
FWP Open FWP document View SEC filing for FWP FWP 23 May 2023 333-249475-02
424B3 Open 424B3 document View SEC filing for 424B3 424B3 23 May 2023 333-249475-02
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 May 2023 11 May 2023 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 May 2023 31 Mar 2023 001-03672
DEFA14C Open DEFA14C document View SEC filing for DEFA14C DEFA14C 28 Mar 2023 001-03672
DEF 14C Open DEF 14C document | Open XBRL data View SEC filing for DEF 14C DEF 14C 28 Mar 2023 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 22 Feb 2023 31 Dec 2022 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 23 Jan 2023 20 Jan 2023 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 09 Jan 2023 06 Jan 2023 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 06 Dec 2022 06 Dec 2022 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 22 Nov 2022 22 Nov 2022 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 09 Nov 2022 333-249475-02
FWP Open FWP document View SEC filing for FWP FWP 08 Nov 2022 333-249475-02
424B3 Open 424B3 document View SEC filing for 424B3 424B3 08 Nov 2022 333-249475-02
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 Nov 2022 30 Sep 2022 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 29 Aug 2022 29 Aug 2022 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 16 Aug 2022 333-249475-02
FWP Open FWP document View SEC filing for FWP FWP 15 Aug 2022 333-249475-02
424B3 Open 424B3 document View SEC filing for 424B3 424B3 15 Aug 2022 333-249475-02
3 Open 3 document View SEC filing for 3 FORM 3 12 Aug 2022 01 Jul 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Aug 2022 30 Jun 2022 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 13 May 2022 12 May 2022 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 May 2022 31 Mar 2022 001-03672
DEFA14C Open DEFA14C document View SEC filing for DEFA14C DEFA14C 29 Mar 2022 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEF 14C 29 Mar 2022 12 May 2022 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 23 Feb 2022 31 Dec 2021 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 Nov 2021 30 Sep 2021 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 13 Sep 2021 13 Sep 2021 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Aug 2021 30 Jun 2021 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 29 Jun 2021 29 Jun 2021 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 23 Jun 2021 333-249475-02
424B2 Open 424B2 document View SEC filing for 424B2 424B2 23 Jun 2021 333-249475-02
FWP Open FWP document View SEC filing for FWP FWP 22 Jun 2021 333-249475-02
FWP Open FWP document View SEC filing for FWP FWP 22 Jun 2021 333-249475-02
424B3 Open 424B3 document View SEC filing for 424B3 424B3 22 Jun 2021 333-249475-02
424B3 Open 424B3 document View SEC filing for 424B3 424B3 22 Jun 2021 333-249475-02
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 May 2021 31 Mar 2021 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 May 2021 06 May 2021 001-03672
DEFA14C Open DEFA14C document View SEC filing for DEFA14C DEFA14C 23 Mar 2021 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEF 14C 23 Mar 2021 06 May 2021 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 22 Feb 2021 31 Dec 2020 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Nov 2020 23 Nov 2020 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 10 Nov 2020 333-249475-02
FWP Open FWP document View SEC filing for FWP FWP 09 Nov 2020 333-249475-02
424B3 Open 424B3 document View SEC filing for 424B3 424B3 09 Nov 2020 333-249475-02
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 Nov 2020 30 Sep 2020 001-03672
S-3ASR Open S-3ASR document View SEC filing for S-3ASR S-3ASR 14 Oct 2020 333-249475-02
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Aug 2020 30 Jun 2020 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 11 May 2020 31 Mar 2020 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 May 2020 07 May 2020 001-03672
DEFA14C Open DEFA14C document View SEC filing for DEFA14C DEFINITIVE ADDITIONAL INFORMATION STATEMENT MATERIALS INCLUDING RULE 14(A)(12) 26 Mar 2020 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEFINITIVE INFORMATION STATEMENTS 26 Mar 2020 07 May 2020 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 28 Feb 2020 31 Dec 2019 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Dec 2019 09 Dec 2019 001-03672
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 26 Nov 2019 26 Nov 2019 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 19 Nov 2019 333-222108-01
FWP Open FWP document View SEC filing for FWP FWP 18 Nov 2019 333-222108-01
424B3 Open 424B3 document View SEC filing for 424B3 424B3 18 Nov 2019 333-222108-01
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Nov 2019 30 Sep 2019 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 Aug 2019 30 Jun 2019 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 May 2019 31 Mar 2019 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 06 May 2019 02 May 2019 001-03672
DEFA14C Open DEFA14C document View SEC filing for DEFA14C DEFINITIVE ADDITIONAL INFORMATION STATEMENT MATERIALS INCLUDING RULE 14(A)(12) 19 Mar 2019 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEFINITIVE INFORMATION STATEMENTS 19 Mar 2019 02 May 2019 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 26 Feb 2019 31 Dec 2018 001-03672
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 24 Jan 2019 16 Jan 2019
8-K Open 8-K document View SEC filing for 8-K 8-K 04 Dec 2018 03 Dec 2018 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 15 Nov 2018 15 Nov 2018 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 06 Nov 2018 333-222108-01
FWP Open FWP document View SEC filing for FWP FWP 05 Nov 2018 333-222108-01
424B3 Open 424B3 document View SEC filing for 424B3 424B3 05 Nov 2018 333-222108-01
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 Nov 2018 30 Sep 2018 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Aug 2018 30 Jun 2018 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 22 May 2018 22 May 2018 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 15 May 2018 333-222108-01
FWP Open FWP document View SEC filing for FWP FWP 14 May 2018 333-222108-01
424B3 Open 424B3 document View SEC filing for 424B3 424B3 14 May 2018 333-222108-01
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 May 2018 31 Mar 2018 001-03672
DEFA14C Open DEFA14C document View SEC filing for DEFA14C DEFA14C 19 Mar 2018 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEF 14C 19 Mar 2018 03 May 2018 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 28 Feb 2018 31 Dec 2017 001-03672
S-3ASR Open S-3ASR document View SEC filing for S-3ASR S-3ASR 15 Dec 2017 333-222108-01
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 28 Nov 2017 28 Nov 2017 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 17 Nov 2017 333-205139-02
FWP Open FWP document View SEC filing for FWP FWP 16 Nov 2017 333-205139-02
424B3 Open 424B3 document View SEC filing for 424B3 424B3 16 Nov 2017 333-205139-02
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 03 Nov 2017 30 Sep 2017 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 Aug 2017 30 Jun 2017 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 May 2017 31 Mar 2017 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 01 May 2017 27 Apr 2017 001-03672
DEFA14C Open DEFA14C document View SEC filing for DEFA14C DEFA14C 15 Mar 2017 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEF 14C 15 Mar 2017 27 Apr 2017 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 28 Feb 2017 31 Dec 2016 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 08 Dec 2016 07 Dec 2016 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 06 Dec 2016 06 Dec 2016 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 30 Nov 2016 333-205139-02
FWP Open FWP document View SEC filing for FWP FWP 29 Nov 2016 333-205139-02
424B3 Open 424B3 document View SEC filing for 424B3 424B3 29 Nov 2016 333-205139-02
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 Nov 2016 30 Sep 2016 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 Aug 2016 30 Jun 2016 001-03672
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 20 Jun 2016
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 08 Jun 2016
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 May 2016 31 Mar 2016 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 29 Apr 2016 28 Apr 2016 001-03672
DEFA14C Open DEFA14C document View SEC filing for DEFA14C DEFA14C 18 Mar 2016 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEF 14C 18 Mar 2016 28 Apr 2016 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 26 Feb 2016 31 Dec 2015 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 14 Dec 2015 14 Dec 2015 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 09 Dec 2015 333-205139-02
FWP Open FWP document View SEC filing for FWP FWP 07 Dec 2015 333-205139-02
424B3 Open 424B3 document View SEC filing for 424B3 424B3 07 Dec 2015 333-205139-02
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Nov 2015 30 Sep 2015 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Aug 2015 30 Jun 2015 001-03672
S-3ASR Open S-3ASR document View SEC filing for S-3ASR S-3ASR 22 Jun 2015 333-205139-02
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 11 May 2015 31 Mar 2015 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 24 Apr 2015 23 Apr 2015 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEF 14C 12 Mar 2015 23 Apr 2015 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 02 Mar 2015 31 Dec 2014 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 23 Jan 2015 23 Jan 2015 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 18 Dec 2014 12 Dec 2014 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 11 Dec 2014 11 Dec 2014 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 10 Dec 2014 10 Dec 2014 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 04 Dec 2014 333-182258-01
FWP Open FWP document View SEC filing for FWP FWP 03 Dec 2014 333-182258-01
424B3 Open 424B3 document View SEC filing for 424B3 424B3 03 Dec 2014 333-182258-01
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 Nov 2014 30 Sep 2014 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 11 Aug 2014 30 Jun 2014 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 30 Jun 2014 30 Jun 2014 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 25 Jun 2014 333-182258-01
FWP Open FWP document View SEC filing for FWP FWP 23 Jun 2014 333-182258-01
424B3 Open 424B3 document View SEC filing for 424B3 424B3 23 Jun 2014 333-182258-01
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 May 2014 31 Mar 2014 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 25 Apr 2014 24 Apr 2014 001-03672
ARS Open ARS document View SEC filing for ARS AUTO-GENERATED PAPER DOCUMENT 14 Mar 2014 31 Dec 2013 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEF 14C 11 Mar 2014 24 Apr 2014 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 03 Mar 2014 31 Dec 2013 001-03672
8-K Open 8-K document View SEC filing for 8-K 8-K 10 Dec 2013 10 Dec 2013 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 424B2 06 Dec 2013 333-182258-01
FWP Open FWP document View SEC filing for FWP FWP 05 Dec 2013 333-182258-01
424B3 Open 424B3 document View SEC filing for 424B3 424B3 05 Dec 2013 333-182258-01
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Nov 2013 30 Sep 2013 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Aug 2013 30 Jun 2013 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 May 2013 31 Mar 2013 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 23 Apr 2013 22 Apr 2013 001-03672
ARS Open ARS document View SEC filing for ARS AUTO-GENERATED PAPER DOCUMENT 14 Mar 2013 31 Dec 2012 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEFINITIVE INFORMATION STATEMENT 07 Mar 2013 23 Apr 2013 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 01 Mar 2013 31 Dec 2012 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 25 Jan 2013 25 Jan 2013 001-03672
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 08 Jan 2013 01 Jan 2013
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 15 Nov 2012 14 Nov 2012 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 09 Nov 2012 30 Sep 2012 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 20 Aug 2012 20 Aug 2012 001-03672
424B2 Open 424B2 document View SEC filing for 424B2 PROSPECTUS SUPPLEMENT 14 Aug 2012 333-182258-01
FWP Open FWP document View SEC filing for FWP FWP 13 Aug 2012 333-182258-01
424B3 Open 424B3 document View SEC filing for 424B3 PROSPECTUS SUPPLEMENT 13 Aug 2012 333-182258-01
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 08 Aug 2012 30 Jun 2012 001-03672
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 25 Jun 2012 13 Jun 2012
S-3ASR Open S-3ASR document View SEC filing for S-3ASR S-3ASR 21 Jun 2012 333-182258-01
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 15 Jun 2012
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 13 Jun 2012 13 Jun 2012 001-03672
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 25 May 2012
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 10 May 2012 31 Mar 2012 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 25 Apr 2012 24 Apr 2012 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEFINITIVE INFORMATION STATEMENT 09 Mar 2012 24 Apr 2012 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 28 Feb 2012 23 Nov 2011 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 13 Jan 2012 10 Jan 2012 001-03672
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 11 Jan 2012 01 Jan 2012
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 03 Jan 2012 03 Jan 2012 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 08 Nov 2011 30 Sep 2011 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 09 Aug 2011 30 Jun 2011 001-03672
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 11 Jul 2011 005-17555
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 10 May 2011 31 Mar 2011 001-03672
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 29 Apr 2011 21 Apr 2011
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 21 Apr 2011 21 Apr 2011 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEFINITIVE INFORMATION STATEMENT 09 Mar 2011 21 Apr 2011 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 24 Feb 2011 31 Dec 2010 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 18 Feb 2011 18 Feb 2011 001-03672
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 20 Jan 2011 005-17555
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 15 Dec 2010 09 Dec 2010 001-03672
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Nov 2010 005-17555
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Nov 2010 005-17555
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 08 Nov 2010 30 Sep 2010 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 07 Oct 2010 01 Oct 2010 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 13 Sep 2010 10 Sep 2010 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 01 Sep 2010 01 Sep 2010 001-03672
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 09 Aug 2010 30 Jun 2010 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 02 Aug 2010 02 Aug 2010 001-03672
EFFECT Open EFFECT document View SEC filing for EFFECT 08 Jul 2010 333-166095
424B3 Open 424B3 document View SEC filing for 424B3 424B3 08 Jul 2010 333-166095
S-4/A Open S-4/A document View SEC filing for S-4/A S-4/A 06 Jul 2010 333-166095
S-4/A Open S-4/A document View SEC filing for S-4/A S-4/A 23 Jun 2010 333-166095
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 10 May 2010 31 Mar 2010 001-03672
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 04 May 2010
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 30 Apr 2010 27 Apr 2010 001-03672
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 30 Apr 2010 29 Apr 2010 001-03672
5 Open 5 document View SEC filing for 5 PRIMARY DOCUMENT 22 Apr 2010 31 Dec 2009
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 19 Apr 2010
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 16 Apr 2010 13 Apr 2010 001-03672
425 Open 425 document View SEC filing for 425 FORM 8-K 16 Apr 2010 001-03672
S-4 Open S-4 document View SEC filing for S-4 S-4 15 Apr 2010 333-166095
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 15 Mar 2010 15 Mar 2010 001-03672
425 Open 425 document View SEC filing for 425 FORM 8-K 15 Mar 2010 001-03672
DEF 14C Open DEF 14C document View SEC filing for DEF 14C DEFINITIVE INFORMATION STATEMENT 10 Mar 2010 27 Apr 2010 001-03672
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 26 Feb 2010 31 Dec 2009 001-03672
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 22 Jan 2010 005-17555

About this filer

Ameren Illinois Co files with the SEC under CIK 0000018654. This page aggregates EDGAR filings and related ownership activity.

Industry: Electric & Other Services Combined.

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
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New filings appear as the SEC updates EDGAR, and older records can vary by availability.
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Updates follow new EDGAR submissions and periodic data refreshes.

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