NiSource Inc
Ownership
Ownership Structure
Who owns NiSource Inc (NI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.6% of the shares are freely tradable; institutional investors hold 98.8%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 10.73 | 51,474,846 | -0.2 | 03/31/2026 |
| T. Rowe Price Investment Management,Inc. | 10.39 | 49,815,015 | -43.6 | 03/31/2026 |
| Vanguard Capital Management, LLC | 6.49 | 31,142,795 | +0.0 | 03/31/2026 |
| State Street Corp | 5.65 | 27,102,422 | +1.4 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.63 | 26,980,955 | +0.0 | 03/31/2026 |
| Geode Capital Management, LLC | 2.63 | 12,613,176 | +1.2 | 03/31/2026 |
| Deutsche Bank AG | 2.44 | 11,718,076 | +13.2 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.18 | 15,265,627 | +0.3 | 07/31/2026 |
| Vanguard 500 Index Investor | 2.62 | 12,587,365 | +1.1 | 07/31/2026 |
| T. Rowe Price Capital Appreciation | 2.26 | 10,826,332 | -34.6 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Birmingham Melody | EVP & Grp President, Utilities | 78,527 | 3,211,760 $ | Aug 14, 2026 | direct |
| Jesanis Michael E | Director | 52,701 | 2,155,462 $ | Jul 13, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 14, 2026 | Birmingham Melody | EVP & Grp President, Utilities | Sell | 37,509 | 42.40 | 1,590,382 |
| Jul 13, 2026 | Jesanis Michael E | Director | Other | 30,190 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.