NI NISOURCE INC.: institutional ownership and insider trading
963 funds reported holding $24.7B of NISOURCE INC. in their latest 13F filings; in Q2 2026 funds net bought $322M, with 92 new positions and 69 funds selling out; over the last 12 months insiders bought $0 and sold $4.85M on the open market.
Famous investors holding NI
- Ray Dalio (Bridgewater Associates): $67.0M, 0.3% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $35.5M, 0.1% of the portfolio
- Ken Griffin (Citadel Advisors): $189M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $6.79M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $4.05M, 0.0% of the portfolio
Largest institutional holders of NI
- BlackRock, Inc. (BLK) — $2.61B
- VANGUARD GROUP INC — $2.61B
- VANGUARD CAPITAL MANAGEMENT LLC — $1.49B
- T. Rowe Price Investment Management, Inc. — $1.42B
- STATE STREET CORP (STT, STT-PG) — $1.31B
- VANGUARD PORTFOLIO MANAGEMENT LLC — $1.29B
- GEODE CAPITAL MANAGEMENT, LLC — $612M
- DEUTSCHE BANK AG\ — $574M
- FMR LLC — $484M
- JENNISON ASSOCIATES LLC — $439M
Recent NI insider trades
- Aug 14, 2026: Birmingham Melody sold 37,509 shares ($1.59M)
- May 22, 2026: Berman Melanie B. sold 15,000 shares ($715K)
- May 21, 2026: Yates Lloyd M sold 19,905 shares ($950K)
- May 20, 2026: Birmingham Melody sold 12,500 shares ($590K)
Members of Congress trading NI
- May 12, 2025: Jefferson Shreve sold $50.0K–$100K
- Apr 11, 2025: Dan Newhouse sold part of $1.00K–$15.0K
- Apr 10, 2024: Dan Newhouse bought $1.00K–$15.0K
5%+ owners
- Vanguard Capital Management: 7.6% (Schedule 13G, filed Apr 30, 2026)
- T. Rowe Price Investment Management, Inc.: 6.2% (Schedule 13G/A, filed Aug 14, 2026)
- Vanguard Portfolio Management: 5.6% (Schedule 13G, filed Apr 29, 2026)