NISOURCE INC.
Electric & Other Services Combined | SIC: 4931Phone: 2196475200
EIN: 352108964
State Location: IN
State of Inc.: DE
- NYSE:NI
Form: 10-K
Filing Date: 11 Feb 2026Report Date: 31 Dec 2025
Accepted: 11 Feb 2026 04:37 a.m.
Accession Number: 0001111711-26-000027
File Number: 001-16189
Film Number: 26618293
Documents
Primary Document: 10-K
Accepted: 11 Feb 2026 04:37 a.m.
0001111711-26-000027-index-headers.html
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0001111711-26-000027-index.html
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0001111711-26-000027.txt
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0001111711-26-000027-xbrl.zip
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FilingSummary.xml
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image_0.jpg
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image_1.jpg
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MetaLinks.json
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ni-ex1013x20251231.htm
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ni-ex1017x20251231.htm
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ni-ex1040x20251231.htm
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ni-ex311x20251231.htm
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ni-ex321x20251231.htm
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ni-ex322x20251231.htm
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nix-20251231.xsd
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nix-20251231_cal.xml
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nix-20251231_def.xml
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nix-20251231_g1.jpg
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