# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001111711-25-000055
Filing Date
2025-10-29
Accepted
2025-10-29 06:41:46
Documents
92
Period of Report
2025-09-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | nix-20250930.htm iXBRL | 10-Q | 2641969
2 | EX-10.1 | ni-ex101x20250930.htm | EX-10.1 | 504215
3 | EX-10.2 | ni-ex102x20250930.htm | EX-10.2 | 702155
4 | EX-31.1 | ni-ex311x20250930.htm | EX-31.1 | 11474
5 | EX-31.2 | ni-ex312x20250930.htm | EX-31.2 | 10830
6 | EX-32.1 | ni-ex321x20250930.htm | EX-32.1 | 4758
7 | EX-32.2 | ni-ex322x20250930.htm | EX-32.2 | 5006
| Complete submission text file | 0001111711-25-000055.txt |  | 13371022

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
8 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | nix-20250930.xsd | EX-101.SCH | 69449
9 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | nix-20250930_cal.xml | EX-101.CAL | 83873
10 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | nix-20250930_def.xml | EX-101.DEF | 516831
11 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | nix-20250930_lab.xml | EX-101.LAB | 752822
12 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | nix-20250930_pre.xml | EX-101.PRE | 626911
95 | EXTRACTED XBRL INSTANCE DOCUMENT | nix-20250930_htm.xml | XML | 2115429

Mailing Address 801 EAST 86TH AVE MERRILLVILLE IN 46410-6272
Business Address 801 EAST 86TH AVE MERRILLVILLE IN 46410-6272 2196475200
NISOURCE INC. (Filer) CIK: 0001111711 (see all company filings)

EIN.: 352108964 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-16189 | Film No.: 251426720
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)