Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in NI held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 55.0M | $2.61B | +6.8% | 11.463% | 0.04% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 31.4M | $1.49B | +0.7% | 6.539% | 0.03% |
| 3 | STATE STREET CORP | 27.6M | $1.31B | +1.9% | 5.761% | 0.02% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 27.1M | $1.29B | +0.3% | 5.646% | 0.06% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 12.9M | $611.9M | +2.4% | 2.695% | 0.03% |
| 6 | DEUTSCHE BANK AG\ | 12.1M | $574.3M | +3.1% | 2.519% | 0.17% |
| 7 | FMR LLC | 10.2M | $483.6M | +10.3% | 2.121% | 0.02% |
| 8 | JENNISON ASSOCIATES LLC | 9.2M | $439.1M | +0.1% | 1.926% | 0.26% |
| 9 | Invesco Ltd. | 7.8M | $370.4M | -0.0% | 1.625% | 0.03% |
| 10 | NORGES BANK | 7.8M | $370.4M | — | 1.625% | 0.04% |
| 11 | JPMORGAN CHASE & CO | 7.0M | $335.3M | -18.7% | 1.452% | 0.02% |
| 12 | FRANKLIN RESOURCES INC | 5.9M | $281.8M | -1.0% | 1.236% | 0.06% |
| 13 | MORGAN STANLEY | 5.6M | $265.5M | +1.9% | 1.165% | 0.01% |
| 14 | Newport Trust Company, LLC | 5.4M | $257.5M | -3.2% | 1.130% | 0.62% |
| 15 | Pictet Asset Management Holding SA | 5.0M | $237.8M | +3.9% | 1.043% | 0.23% |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 4.5M | $214.7M | +1.0% | 0.942% | 0.03% |
| 17 | Soroban Capital Partners LP | 4.5M | $213.7M | 0.0% | 0.937% | 0.45% |
| 18 | NORTHERN TRUST CORP | 4.4M | $210.3M | +4.0% | 0.923% | 0.02% |
| 19 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | 4.4M | $208.4M | +4.4% | 0.914% | 0.04% |
| 20 | GOLDMAN SACHS GROUP INC | 4.3M | $206.7M | +11.7% | 0.907% | 0.02% |
| 21 | Zimmer Partners, LP | 4.3M | $203.4M | -16.8% | 0.892% | 4.68% |
| 22 | REAVES W H & CO INC | 4.1M | $194.4M | -0.6% | 0.853% | 2.95% |
| 23 | WELLINGTON MANAGEMENT GROUP LLP | 4.1M | $194.0M | -10.0% | 0.851% | 0.03% |
| 24 | CITADEL ADVISORS LLC | 4.0M | $189.3M | +346.6% | 0.831% | 0.01% |
| 25 | Legal & General Group Plc | 3.8M | $179.8M | -2.4% | 0.789% | 0.04% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in NI — a direct measure of their conviction.
Filings activity in NI during Q2 2026, grouped by how each filer changed its position.
Institutions that opened a new NI position in Q2 2026
Institutions that fully closed their NI position in Q2 2026
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 909 | +4.2% | 95.86% | +1.39 pp | $19.78B | +8.8% |
| Q1 2026 | 872 | +7.1% | 94.47% | +0.89 pp | $18.18B | +9.0% |
| Q4 2025 | 814 | +5.9% | 93.58% | 0.48 pp | $16.67B | 1.1% |
| Q3 2025 | 769 | +1.6% | 94.06% | 5.14 pp | $16.85B | +5.7% |
| Q2 2025 | 757 | 2.3% | 99.20% | +7.40 pp | $15.94B | +4.3% |
| Q1 2025 | 775 | +8.7% | 91.80% | 2.61 pp | $15.28B | +7.9% |
| Q4 2024 | 713 | +7.5% | 94.41% | +1.70 pp | $14.17B | +10.0% |
| Q3 2024 | 663 | — | 92.71% | — | $12.88B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying NI stock.
Based on Q2 2026 13F filings, institutional ownership of NiSource Inc stands at 95.9%, held across 909 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of NI, with approximately 54,957,602 shares worth $2.61B as of Q2 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of NI, including CITADEL ADVISORS LLC.
Our composite Smart Money Score for NI is 65 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
89 institutions opened new positions in NI during Q2 2026, while 68 fully exited. 597 added to existing positions and 189 trimmed.
NI institutional ownership rose by 1.39 percentage points quarter-over-quarter, with a net change of +37 holders.
The top 10 institutions account for 48.3% of all reported 13F value in NI, and the top 25 account for 65.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
NiSource Inc (NI) Institutional Ownership