Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in NGG held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | 5.7M | $478.7M | -11.5% | 0.569% | 0.03% |
| 2 | BANK OF AMERICA CORP /DE/ | 4.5M | $379.1M | -8.4% | 0.450% | 0.03% |
| 3 | MORGAN STANLEY | 3.4M | $284.4M | +52.8% | 0.338% | 0.02% |
| 4 | GOLDMAN SACHS GROUP INC | 2.2M | $185.9M | +4.5% | 0.221% | 0.02% |
| 5 | RENAISSANCE TECHNOLOGIES LLC | 2.2M | $183.5M | -10.2% | 0.218% | 0.29% |
| 6 | FEDERATED HERMES, INC. | 2.1M | $181.2M | -32.4% | 0.215% | 0.29% |
| 7 | JONES FINANCIAL COMPANIES LLLP | 2.2M | $176.8M | +27424.2% | 0.217% | 0.08% |
| 8 | ROYAL BANK OF CANADA | 2.1M | $174.1M | -11.0% | 0.207% | 0.03% |
| 9 | Connor, Clark & Lunn Investment Management Ltd. | 1.8M | $156.0M | +718.7% | 0.185% | 0.36% |
| 10 | MILFORD FUNDS LTD | 1.8M | $150.1M | -25.1% | 0.178% | 3.14% |
| 11 | ENVESTNET ASSET MANAGEMENT INC | 1.6M | $138.8M | -9.8% | 0.165% | 0.04% |
| 12 | RAYMOND JAMES FINANCIAL INC | 1.4M | $114.9M | -20.3% | 0.136% | 0.04% |
| 13 | WELLS FARGO & COMPANY/MN | 1.3M | $113.5M | -17.8% | 0.135% | 0.02% |
| 14 | BRANDES INVESTMENT PARTNERS, LP | 1.3M | $111.0M | +68.1% | 0.132% | 0.79% |
| 15 | BlackRock, Inc. | 1.3M | $109.3M | +9.6% | 0.130% | 0.00% |
| 16 | NORTHERN TRUST CORP | 1.2M | $97.6M | -7.8% | 0.116% | 0.01% |
| 17 | BANK OF MONTREAL /CAN/ | 1.1M | $89.8M | +131.8% | 0.107% | 0.03% |
| 18 | 40 North Management LLC | 987K | $83.5M | -60.2% | 0.099% | 7.57% |
| 19 | DIMENSIONAL FUND ADVISORS LP | 891K | $75.4M | +1.8% | 0.090% | 0.02% |
| 20 | LPL Financial LLC | 879K | $74.4M | -15.6% | 0.088% | 0.02% |
| 21 | Clark Capital Management Group, Inc. | 862K | $72.9M | -6.4% | 0.087% | 0.45% |
| 22 | CITADEL ADVISORS LLC | 829K | $70.2M | +51.5% | 0.083% | 0.03% |
| 23 | Cullen Capital Management, LLC | 794K | $67.2M | +4.2% | 0.080% | 0.69% |
| 24 | CAUSEWAY CAPITAL MANAGEMENT LLC | 539K | $45.6M | -24.1% | 0.054% | 0.56% |
| 25 | AMERIPRISE FINANCIAL INC | 464K | $39.0M | +93.5% | 0.047% | 0.01% |
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 NGG — a direct measure of their conviction.
Filings activity in NGG during Q1 2026, grouped by how each filer changed its position.
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 |
|---|---|---|---|---|---|---|
| Q1 2026 | 573 | +7.9% | 5.85% | +0.54 pp | $4.77B | +10% |
| Q4 2025 | 531 | +7.5% | 5.31% | +0.62 pp | $4.32B | +13% |
| Q3 2025 | 494 | +0.0% | 4.69% | +0.06 pp | $3.82B | +1.4% |
| Q2 2025 | 494 | +8.1% | 4.63% | +1.06 pp | $3.77B | +29% |
| Q1 2025 | 457 | +4.3% | 3.57% | +0.61 pp | $2.91B | +21% |
| Q4 2024 | 438 | 4.8% | 2.96% | 5.78 pp | $2.41B | 66% |
| Q3 2024 | 460 | +12% | 8.74% | +6.00 pp | $7.11B | +219% |
| Q2 2024 | 411 | — | 2.74% | — | $2.23B | — |
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 NGG stock.
Based on Q1 2026 13F filings, institutional ownership of National Grid plc stands at 5.9%, held across 573 reporting institutions.
FMR LLC is the largest reported institutional holder of NGG, with approximately 5,658,452 shares worth $0.48B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of NGG, including RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for NGG is 69 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
97 institutions opened new positions in NGG during Q1 2026, while 55 fully exited. 366 added to existing positions and 108 trimmed.
NGG institutional ownership rose by 0.54 percentage points quarter-over-quarter, with a net change of +42 holders.
The top 10 institutions account for 49.3% of all reported 13F value in NGG, and the top 25 account for 76.6%.
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.
National Grid plc (NGG) Institutional Ownership