NISOURCE INC. — 8-K Filings
347 8-K filings on record
This page lists all 8-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 347 8-K documents with the SEC since 2014. To view all SEC filings by NISOURCE INC., see the full filings list.
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 |
|---|---|---|---|---|
| 8-K | 8-K | 0001111711-26-000026 | Feb 11, 2026 | — |
| 8-K | 8-K | 0001193125-25-316004 | Dec 11, 2025 | — |
| 8-K | 8-K | 0001193125-25-272329 | Nov 7, 2025 | — |
| 8-K | 8-K | 0001193125-25-259392 | Oct 31, 2025 | — |
| 8-K | 8-K | 0001111711-25-000054 | Oct 29, 2025 | — |
| 8-K | 8-K | 0001193125-25-209933 | Sep 22, 2025 | — |
| 8-K | 8-K | 0001111711-25-000035 | Aug 6, 2025 | — |
| 8-K | 8-K | 0001193125-25-151249 | Jun 27, 2025 | — |
| 8-K | 8-K | 0001193125-25-118298 | May 13, 2025 | May 12, 2025 |
| 8-K | 8-K | 0001111711-25-000019 | May 7, 2025 | — |
| 8-K | 8-K | 0001193125-25-065501 | Mar 27, 2025 | — |
| 8-K | 8-K | 0001111711-25-000006 | Feb 12, 2025 | — |
| 8-K | 8-K | 0001193125-25-012250 | Jan 24, 2025 | Jan 22, 2025 |
| 8-K | 8-K | 0001111711-24-000041 | Oct 30, 2024 | — |
| 8-K | 8-K | 0001193125-24-241105 | Oct 22, 2024 | Oct 21, 2024 |
| 8-K | 8-K | 0001193125-24-215887 | Sep 9, 2024 | — |
| 8-K | 8-K | 0001111711-24-000031 | Aug 7, 2024 | — |
| 8-K | 8-K | 0001193125-24-166953 | Jun 24, 2024 | — |
| 8-K | 8-K | 0001193125-24-140575 | May 16, 2024 | — |
| 8-K | 8-K | 0001193125-24-137263 | May 13, 2024 | — |
| 8-K | 8-K | 0001111711-24-000019 | May 8, 2024 | — |
| 8-K | 8-K | 0001193125-24-071351 | Mar 19, 2024 | Mar 18, 2024 |
| 8-K | 8-K | 0001193125-24-070159 | Mar 18, 2024 | — |
| 8-K | 8-K | 0001193125-24-069151 | Mar 15, 2024 | — |
| 8-K | 8-K | 0001193125-24-067889 | Mar 14, 2024 | — |
| 8-K | 8-K | 0001193125-24-042105 | Feb 22, 2024 | — |
| 8-K | 8-K | 0001111711-24-000009 | Feb 21, 2024 | — |
| 8-K | 8-K | 0001193125-24-039384 | Feb 20, 2024 | Feb 19, 2024 |
| 8-K | 8-K | 0001193125-24-030057 | Feb 9, 2024 | — |
| 8-K | 8-K | 0001193125-24-016854 | Jan 26, 2024 | Jan 24, 2024 |
| 8-K | 8-K | 0001193125-24-000207 | Jan 2, 2024 | Dec 31, 2023 |
| 8-K | 8-K | 0001193125-23-297656 | Dec 18, 2023 | — |
| 8-K | 8-K | 0001193125-23-289951 | Dec 6, 2023 | — |
| 8-K | 8-K | 0001193125-23-286764 | Dec 1, 2023 | — |
| 8-K | 8-K | 0001193125-23-279272 | Nov 17, 2023 | — |
| 8-K | 8-K | 0001193125-23-279290 | Nov 17, 2023 | — |
| 8-K | 8-K | 0001193125-23-277416 | Nov 15, 2023 | — |
| 8-K | 8-K | 0001193125-23-277173 | Nov 14, 2023 | — |
| 8-K | 8-K | 0001193125-23-274635 | Nov 9, 2023 | — |
| 8-K | 8-K | 0001111711-23-000038 | Nov 1, 2023 | — |
| 8-K | 8-K | 0001193125-23-259566 | Oct 20, 2023 | — |
| 8-K | 8-K | 0001193125-23-259363 | Oct 20, 2023 | Oct 19, 2023 |
| 8-K | 8-K | 0001193125-23-251531 | Oct 5, 2023 | — |
| 8-K | 8-K | 0001193125-23-244682 | Sep 28, 2023 | — |
| 8-K | 8-K | 0001193125-23-235677 | Sep 15, 2023 | — |
| 8-K | 8-K | 0001193125-23-219090 | Aug 23, 2023 | — |
| 8-K | 8-K | 0001111711-23-000024 | Aug 2, 2023 | — |
| 8-K | 8-K | 0001193125-23-169531 | Jun 20, 2023 | Jun 17, 2023 |
| 8-K | 8-K | 0001193125-23-168974 | Jun 16, 2023 | — |
| 8-K | 8-K | 0001193125-23-163893 | Jun 9, 2023 | Jun 8, 2023 |