Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
582 institutional managers reported holding NGG for the quarter ended Mar 31, 2026. Together they hold about 1% of shares outstanding; the top 10 hold 1%. 92 opened new positions; 49 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| FMR (Fidelity) | 5.66M | 0.12% | $478.6M | trimmed -11.5% | ≤2013 |
| Bank OF America CORP /DE/ | 4.48M | 0.10% | $379.0M | trimmed -8.4% | ≤2013 |
| Morgan Stanley | 3.36M | 0.07% | $284.4M | added +52.9% | ≤2013 |
| Natixis Advisors, LLC | 2.27M | 0.05% | $191.8M | added +3.7% | ≤2013 |
| Goldman Sachs | 2.20M | 0.05% | $185.8M | added +4.6% | ≤2013 |
| Renaissance Technologies | 2.17M | 0.05% | $183.4M | trimmed -10.2% | ≤2013 |
| Jones Financial Companies Lllp | 2.16M | 0.05% | $182.5M | added +27424.2% | 2023 Q3 |
| Federated Hermes, INC. | 2.14M | 0.05% | $181.2M | trimmed -32.4% | ≤2013 |
| Royal Bank OF Canada | 2.06M | 0.04% | $174.1M | trimmed -11% | ≤2013 |
| Connor, Clark & Lunn Investment Management LTD. | 1.84M | 0.04% | $156.0M | added +718.7% | 2025 Q3 |
| Milford Funds LTD | 1.77M | 0.04% | $150.0M | trimmed -25.1% | 2025 Q4 |
| Envestnet Asset Management INC | 1.64M | 0.04% | $138.7M | trimmed -9.8% | ≤2013 |
| Raymond James Financial INC | 1.36M | 0.03% | $114.8M | trimmed -20.3% | ≤2013 |
| Wells Fargo & COMPANY/MN | 1.34M | 0.03% | $113.4M | trimmed -17.8% | ≤2013 |
| Brandes Investment Partners, LP | 1.31M | 0.03% | $111.0M | added +68.1% | 2025 Q4 |
| BlackRock | 1.29M | 0.03% | $109.3M | added +9.6% | 2018 Q3 |
| Northern Trust | 1.15M | 0.03% | $97.6M | trimmed -7.8% | ≤2013 |
| Bank OF Montreal /CAN/ | 1.06M | 0.02% | $89.8M | added +131.8% | 2023 Q2 |
| Standard Investments LLC (focused) | 987.1k | 0.02% | $83.5M | trimmed -60.2% | 2024 Q4 |
| Dimensional Fund Advisors | 891.4k | 0.02% | $75.4M | added +1.8% | ≤2013 |
| LPL Financial LLC | 879.1k | 0.02% | $74.4M | trimmed -15.6% | ≤2013 |
| Clark Capital Management Group, INC. | 862.2k | 0.02% | $72.9M | trimmed -6.4% | 2024 Q1 |
| Cullen Capital Management, LLC | 794.2k | 0.02% | $67.2M | added +4.2% | 2025 Q2 |
| Causeway Capital Management LLC | 538.8k | 0.01% | $45.6M | trimmed -24.1% | 2025 Q2 |
| Ameriprise Financial INC | 463.9k | 0.01% | $39.2M | added +93.5% | ≤2013 |
| Manufacturers Life Insurance Company, THE | 444.5k | <0.01% | $37.6M | added +0.8% | ≤2013 |
| D. E. Shaw | 419.9k | <0.01% | $35.5M | added +34.1% | 2023 Q2 |
| ABC Arbitrage SA | 355.1k | <0.01% | $30.0M | added +13.7% | 2024 Q4 |
| American Century Companies INC | 326.9k | <0.01% | $27.6M | added +32.8% | 2019 Q4 |
| UBS | 323.7k | <0.01% | $27.4M | added +33% | ≤2013 |
| Jane Street | 322.7k | <0.01% | $27.3M | opened | 2026 Q1 |
| Stifel Financial CORP | 306.4k | <0.01% | $25.9M | trimmed -14.4% | ≤2013 |
| BNY Mellon | 301.7k | <0.01% | $25.5M | trimmed -13.1% | ≤2013 |
| Nuveen | 269.8k | <0.01% | $22.8M | added +37.5% | ≤2013 |
| Quantinno Capital Management LP | 268.8k | <0.01% | $22.7M | added +27.5% | 2022 Q4 |
| Citadel Advisors | 268.0k | <0.01% | $22.7M | added +537.3% | 2013 Q3 |
| Qube Research & Technologies LTD | 255.5k | <0.01% | $21.6M | added +658% | 2025 Q4 |
| Ferguson Wellman Capital Management, INC | 251.5k | <0.01% | $21.3M | opened | 2026 Q1 |
| Lockheed Martin Investment Management CO | 214.7k | <0.01% | $18.2M | trimmed -12.3% | 2024 Q4 |
| Beck Bode, LLC | 212.9k | <0.01% | $18.0M | opened | 2026 Q1 |
| Point72 | 194.1k | <0.01% | $16.4M | added +496.2% | 2024 Q3 |
| Charles Schwab Investment Management | 188.7k | <0.01% | $16.0M | added +15.8% | 2023 Q1 |
| Mirae Asset Global Etfs Holdings LTD. | 186.3k | <0.01% | $15.8M | added +35.5% | 2024 Q4 |
| Hennessy Advisors INC | 180.9k | <0.01% | $15.3M | unchanged | ≤2013 |
| Truist Financial CORP | 179.1k | <0.01% | $15.2M | trimmed -21.3% | ≤2013 |
| Guardian Capital LP | 177.8k | <0.01% | $15.0M | trimmed -0.8% | 2024 Q4 |
| MFS Investment Management | 174.9k | <0.01% | $14.8M | added +3.8% | 2025 Q2 |
| Creative Planning | 163.2k | <0.01% | $13.8M | added +19.3% | ≤2013 |
| Invesco | 161.8k | <0.01% | $13.7M | trimmed -62.9% | ≤2013 |
| Cetera Investment Advisers | 150.8k | <0.01% | $12.8M | added +2.1% | 2020 Q4 |
Largest 50 of 582 shown; the full ranked, searchable register is at boothcheck.com/holders/NGG. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.