NISOURCE INC. reports

Company location: Merrillville, IN
Fiscal year end: 31 December

NISOURCE INC. has filed 2,537 SEC EDGAR filings since 24 Apr 2000

Filter by type:
10-K
10-Q
8-K
SC13G

SEC filing history

Showing 1-25 of 1,000 matching filings.

Per page

25

Current page

1

4

PRIMARY DOCUMENT

Filing date: 15 Jul 2026
Reporting date: 13 Jul 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

11-K File 001-16189

11-K

Filing date: 18 Jun 2026
Reporting date: 31 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 27 May 2026
Reporting date: 22 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 26 May 2026
Reporting date: 21 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 001-16189

144 filing

Filing date: 22 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 May 2026
Reporting date: 14 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 001-16189

144 filing

Filing date: 21 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 001-16189

144 filing

Filing date: 20 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-16189

8-K

Filing date: 18 May 2026
Reporting date: 18 May 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

144 File 001-16189

144 filing

Filing date: 14 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-16189

8-K

Filing date: 12 May 2026
Reporting date: 11 May 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

424B2 File 333-291167

424B2

Filing date: 12 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

FWP File 333-291167

FWP

Filing date: 11 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

424B5 File 333-291167

424B5

Filing date: 11 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. to update or revoke optional consent for future visits. For more information, see our Privacy Policy .