NiSource Inc. (NI) SEC Filings

NiSource Inc. (NI) SEC EDGAR filings (8-K, 10-Q, DEF 14A, 10-K), newest first; latest 8-K filed 2026-08-18. Every filing links to the canonical SEC document. First-party data.

SEC filings — source: EDGAR
FiledFormTitle
2026-08-188-K8-K filed 2026-08-18 by NISOURCE INC.
2026-08-058-K8-K filed 2026-08-05 by NISOURCE INC.
2026-08-0510-Q10-Q filed 2026-08-05 by NISOURCE INC.
2026-05-188-K8-K filed 2026-05-18 by NISOURCE INC.
2026-05-128-K8-K filed 2026-05-12 by NISOURCE INC.
2026-05-0610-Q10-Q filed 2026-05-06 by NISOURCE INC.
2026-05-068-K8-K filed 2026-05-06 by NISOURCE INC.
2026-03-30DEF 14ADEF 14A filed 2026-03-30 by NISOURCE INC.
2026-02-1110-K10-K filed 2026-02-11 by NISOURCE INC.
2026-02-118-K8-K filed 2026-02-11 by NISOURCE INC.
2025-12-118-K8-K filed 2025-12-11 by NISOURCE INC.
2025-11-078-K8-K filed 2025-11-07 by NISOURCE INC.
2025-10-318-K8-K filed 2025-10-31 by NISOURCE INC.
2025-10-298-K8-K filed 2025-10-29 by NISOURCE INC.
2025-10-2910-Q10-Q filed 2025-10-29 by NISOURCE INC.
2025-09-228-K8-K filed 2025-09-22 by NISOURCE INC.
2025-08-068-K8-K filed 2025-08-06 by NISOURCE INC.
2025-08-0610-Q10-Q filed 2025-08-06 by NISOURCE INC.
2025-06-278-K8-K filed 2025-06-27 by NISOURCE INC.
2025-05-138-K8-K filed 2025-05-13 by NISOURCE INC.
2025-05-078-K8-K filed 2025-05-07 by NISOURCE INC.
2025-05-0710-Q10-Q filed 2025-05-07 by NISOURCE INC.
2025-03-31DEF 14ADEF 14A filed 2025-03-31 by NISOURCE INC.
2025-03-278-K8-K filed 2025-03-27 by NISOURCE INC.
2025-02-128-K8-K filed 2025-02-12 by NISOURCE INC.
2025-02-1210-K10-K filed 2025-02-12 by NISOURCE INC.
2025-01-248-K8-K filed 2025-01-24 by NISOURCE INC.
2024-10-3010-Q10-Q filed 2024-10-30 by NISOURCE INC.
2024-10-308-K8-K filed 2024-10-30 by NISOURCE INC.
2024-10-228-K8-K filed 2024-10-22 by NISOURCE INC.

NI overview · NI earnings · NI financials · NI KPIs · NI investor relations · NI ownership · NI peers

Data sourced from U.S. SEC EDGAR. Not personalized investment advice.