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NISOURCE INC. — 11-K Filings

51 11-K filings on record

This page lists all 11-K filings submitted to the SEC by NISOURCE INC. (NI), sorted by most recent first. Each row links to the full filing on EdgarLookup. NISOURCE INC. has filed 51 11-K documents with the SEC since 2014. To view all SEC filings by NISOURCE INC., see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-K405 10-Q 11-K 144 15-12B 15-15D 25 25-NSE 3 3/A 35-CERT 4 4/A 424B2 424B3 424B4 424B5 425 5 8-A12B 8-A12B/A 8-K 8-K/A ARS CERT CORRESP DEF 14A DEFA14A EFFECT FWP NO ACT NT 10-K NT 11-K POS AM POS AMC POSASR PRE 14A PRER14A PX14A6G S-1 S-3 S-3/A S-3ASR S-4 S-4/A S-8 S-8 POS SC 13G SC 13G/A SC TO-C SC TO-I SC TO-I/A SCHEDULE 13G SCHEDULE 13G/A SE U-1 U-1/A U-12-IA U-12-IB U-13-60 U-6B-2 U-9C-3 U5A U5B U5B/A U5S U5S/A UPLOAD
Form Description Accession Number Filed Period
11-K 11-K 0001111711-25-000028 Jun 18, 2025 Dec 31, 2024
11-K 11-K 0001111711-24-000025 Jun 26, 2024 Dec 31, 2023
11-K 11-K 0001111711-23-000018 Jun 26, 2023 Dec 31, 2022
11-K 11-K 0001111711-22-000016 Jun 17, 2022 Dec 31, 2021
11-K 11-K 0001111711-21-000021 Jun 25, 2021 Dec 31, 2020
11-K 11-K 0001111711-20-000025 Jun 26, 2020 Dec 31, 2019
11-K 11-K 0001111711-19-000026 Jun 26, 2019 Dec 31, 2018
11-K 11-K 0001111711-19-000012 Mar 27, 2019 Dec 31, 2018
11-K 11-K 0001111711-18-000027 Jun 26, 2018 Dec 31, 2017
11-K 11-K 0001111711-18-000012 Mar 28, 2018 Dec 31, 2017
11-K 11-K 0001111711-17-000042 Jun 21, 2017 Dec 31, 2016
11-K 11-K 0001111711-17-000018 Mar 23, 2017 Dec 31, 2016
11-K 11-K 0001111711-16-000070 Jun 22, 2016 Dec 31, 2015
11-K 11-K 0001111711-16-000054 Mar 25, 2016 Dec 31, 2015
11-K 11-K 0001111711-15-000024 Jun 25, 2015 Dec 31, 2014
11-K 11-K 0001111711-15-000013 Mar 26, 2015 Dec 31, 2014
11-K 11-K 0001111711-14-000041 Jun 25, 2014 Dec 31, 2013
11-K 11-K 0001111711-14-000020 Mar 27, 2014 Dec 31, 2013
11-K 11-K 0001111711-13-000026 Jun 26, 2013 Dec 31, 2012
11-K 11-K 0001111711-13-000011 Mar 28, 2013 Dec 31, 2012
11-K FORM 11-K 0001193125-12-282921 Jun 26, 2012 Dec 31, 2011
11-K 11-K 0001193125-12-137484 Mar 28, 2012 Dec 31, 2011
11-K FORM 11-K 0000950123-11-062216 Jun 28, 2011 Dec 31, 2010
11-K FORM 11-K 0000950123-11-030872 Mar 30, 2011 Dec 31, 2010
11-K FORM 11-K 0000950123-10-061925 Jun 29, 2010 Dec 31, 2009
11-K FORM 11-K 0000950123-10-030709 Mar 31, 2010 Dec 31, 2009
11-K FORM 11-K 0000950123-09-018508 Jun 29, 2009 Dec 31, 2008
11-K FORM 11-K 0000950137-09-002432 Mar 31, 2009 Dec 31, 2008
11-K ANNUAL REPORT 0000950137-08-008787 Jun 26, 2008 Dec 31, 2007
11-K ANNUAL REPORT 0000950137-08-008789 Jun 26, 2008 Dec 31, 2007
11-K ANNUAL REPORT 0000950137-08-008788 Jun 26, 2008 Dec 31, 2007
11-K ANNUAL REPORT 0000950137-08-004581 Mar 28, 2008 Dec 31, 2007
11-K ANNUAL REPORT 0000950137-07-009416 Jun 28, 2007 Dec 31, 2006
11-K ANNUAL REPORT 0000950137-07-004696 Mar 29, 2007 Dec 31, 2006
11-K FORM 11-K 0000950137-06-007415 Jun 29, 2006 Dec 31, 2005
11-K FORM 11-K 0000950137-06-003847 Mar 28, 2006 Dec 31, 2005
11-K ANNUAL REPORT 0000950137-05-008097 Jun 29, 2005 Dec 31, 2004
11-K ANNUAL REPORT 0000950137-05-003713 Mar 29, 2005 Dec 31, 2004
11-K ANNUAL REPORT 0000950137-04-005219 Jun 28, 2004 Dec 31, 2003
11-K ANNUAL REPORT 0000950137-04-002092 Mar 23, 2004 Dec 31, 2003
11-K FORM 11-K 0000950124-03-002217 Jun 30, 2003 Dec 31, 2002
11-K ANNUAL REPORT 0000950137-03-001869 Mar 31, 2003 Dec 31, 2002
11-K AUTO-GENERATED PAPER DOCUMENT 9999999997-02-040678 Jul 16, 2002 Dec 31, 2001
11-K AUTO-GENERATED PAPER DOCUMENT 9999999997-02-040674 Jul 16, 2002 Dec 31, 2001
11-K AUTO-GENERATED PAPER DOCUMENT 9999999997-02-040628 Jul 16, 2002 Dec 31, 2001
11-K AUTO-GENERATED PAPER DOCUMENT 9999999997-02-040626 Jul 16, 2002 Dec 31, 2001
11-K AUTO-GENERATED PAPER DOCUMENT 9999999997-02-040623 Jul 16, 2002 Dec 31, 2001
11-K AUTO-GENERATED PAPER DOCUMENT 9999999997-02-040621 Jul 16, 2002 Dec 31, 2001
11-K NISOURCE INC. 11-K FOR FISCAL YEAR END 12/31/2001 0000893220-02-000385 Mar 29, 2002 Dec 31, 2001
11-K — 0000895813-01-500089 Jul 16, 2001 Dec 31, 2000