NYSE:NI
Nisource Inc.
Nisource Inc.'s revenue grew 23.5% in fiscal 2025 to $6.5B while operating margin rose to 28.1%, its highest in 10 years. Free cash flow was −$420.0M, −6.4% of revenue, and the diluted share count rose 4.1%.Summary generated from Nisource Inc.'s SEC filings. Latest annual report filed Feb 11, 2026.
Key statistics
Fiscal 2025 from SEC filings. MethodologyRevenue (FY25)$6.5B
Revenue growth+23.5%
Revenue, 5-yr CAGR+7.8%
Gross marginn/a
Operating margin28.1%
Net margin14.3%
ROIC6.0%
Return on equity10.3%
Debt / equity1.72
Free cash flow−$420.0M
FCF margin−6.4%
Share count change+4.1%
Financials
| Item | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Revenue | 4,731 | 5,739 | 5,348 | 5,283 | 6,523 |
| Operating income | 1,007 | 1,266 | 1,296 | 1,456 | 1,835 |
| Net income | 585 | 804 | 714 | 760 | 930 |
| Free cash flow | −620 | −794 | −711 | −833 | −420 |
Recent filings
- 8-KOther events
Aug 18, 2026 - 4Insider transaction report
Aug 18, 2026 - 10-QQuarterly report for the period ended Jun 30, 2026
Aug 5, 2026 - 8-KResults of operations and financial condition
Aug 5, 2026 - 4Insider transaction report
Jul 15, 2026 - 8-KOther events
May 18, 2026 - 8-KResults of a shareholder vote
May 12, 2026 - 10-QQuarterly report for the period ended Mar 31, 2026
May 6, 2026