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NGG

National Grid PLC

Company with tickers: NGG, NGGTF, NEWEN, NMKBP, NMKCP, NMPWP

CIK
1004315
CUSIP
636274409
Shares Outstanding
995,109,400
13F Activity (30d)
405 filings 387 filers
Holders: 586
Total Value: $5,237,817,916
Total Shares: 61,912,745
Showing 1–100 of 596 holdings by value · page 1 of 6

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 586 13F filers · Δ vs Dec 31, 2025
Top Holder
9.1%
Jun 2023 → Mar 2026 · range 8.0% – 11.0%
−1.6 pts
Top 5
29.0%
Jun 2023 → Mar 2026 · range 29.0% – 37.7%
−3.4 pts
Top 10
46.1%
Jun 2023 → Mar 2026 · range 46.1% – 56.6%
−5.0 pts
HHI
318
Jun 2023 → Mar 2026 · range 310 – 429
Broadly held −62

Quarterly Activity

vs Dec 31, 2025
New
93
Increased
232
Decreased
178
Sold Out
50
Unchanged
83
Holder count: +43
Institutional value: +13.3%
Shares held: +3.6%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Large JONES FINANCIAL COMPANIES LLLP +2,149,783 2,157,622
Large Connor, Clark & Lunn Investment Management Ltd. +1,619,023 1,844,307
Mega MORGAN STANLEY +1,162,552 3,362,071
Mega BANK OF MONTREAL /CAN/ +603,711 1,061,874
Large BRANDES INVESTMENT PARTNERS, LP +531,537 1,312,011

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mid Standard Investments LLC −1,492,900 987,100
Large FEDERATED HERMES, INC. −1,027,275 2,142,131
Mega FMR LLC −735,516 5,658,452
Mid MILFORD FUNDS LTD −594,898 1,773,663
Mega BANK OF AMERICA CORP /DE/ −408,848 4,481,010

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mid FERGUSON WELLMAN CAPITAL MANAGEMENT, INC 251,502 $21,277,069
Small Beck Bode, LLC 212,922 $18,013,201
Large Tidal Investments LLC 122,565 $10,368,999
Large LMR Partners LLP 107,901 $9,128,424
Large SILVERCREST ASSET MANAGEMENT GROUP LLC 90,791 $7,680,918

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Large SG Americas Securities, LLC 892,580 $69,041,063
Small Capital Innovations LLC 84,370 $6,526,019
Large PEAK6 LLC 19,969 $1,544,602
Mid Optiver Holding B.V. 16,603 $1,284,242
Small HighPoint Advisor Group LLC 16,496 $1,275,965
Filter: New 93 Increased 232 Reduced 178 Sold out 50 Unchanged 83
Showing 100 of 596
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega FMR LLC $478,705,038 9.14% 5,658,452
Mega BANK OF AMERICA CORP /DE/ Bank $379,093,444 7.24% 4,481,010
Mega MORGAN STANLEY $284,431,203 5.43% 3,362,071
Large NATIXIS ADVISORS, LLC $191,827,539 3.66% 2,267,465
Mega GOLDMAN SACHS GROUP INC $185,875,928 3.55% 2,197,115
Large RENAISSANCE TECHNOLOGIES LLC $183,476,673 3.50% 2,168,755
Large JONES FINANCIAL COMPANIES LLLP $182,534,821 3.48% 2,157,622
Large FEDERATED HERMES, INC. $181,224,281 3.46% 2,142,131
Mega ROYAL BANK OF CANADA Bank $174,122,362 3.32% 2,058,184
Mega JPMORGAN CHASE & CO $174,110,857 3.32% 2,058,048
Large Connor, Clark & Lunn Investment Management Ltd. $156,028,372 2.98% 1,844,307
Mid MILFORD FUNDS LTD $150,051,889 2.86% 1,773,663
Mega ENVESTNET ASSET MANAGEMENT INC $138,781,054 2.65% 1,640,438
Mega RAYMOND JAMES FINANCIAL INC $114,872,670 2.19% 1,357,833
Mega WELLS FARGO & COMPANY/MN $113,454,943 2.17% 1,341,075
Large BRANDES INVESTMENT PARTNERS, LP $110,996,129 2.12% 1,312,011
Mega BlackRock, Inc. $109,328,069 2.09% 1,292,294
Mega NORTHERN TRUST CORP Bank $97,582,377 1.86% 1,153,456
Mega BANK OF MONTREAL /CAN/ Bank $89,834,539 1.72% 1,061,874
Mid Standard Investments LLC $83,508,660 1.59% 987,100
Mega DIMENSIONAL FUND ADVISORS LP $75,411,846 1.44% 891,393
Mega LPL Financial LLC $74,369,152 1.42% 879,068
Large Clark Capital Management Group, Inc. $72,938,736 1.39% 862,160
Mid Cullen Capital Management, LLC $67,189,658 1.28% 794,204
Mega CITADEL ADVISORS LLC $46,656,900 0.89% 551,500
Mid CAUSEWAY CAPITAL MANAGEMENT LLC $45,579,180 0.87% 538,761
Mega AMERIPRISE FINANCIAL INC $39,246,278 0.75% 463,904
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $37,605,292 0.72% 444,507
Mega D. E. Shaw & Co., Inc. $35,520,663 0.68% 419,866
Small ABC ARBITRAGE SA $30,042,644 0.57% 355,114
Mega AMERICAN CENTURY COMPANIES INC $27,651,763 0.53% 326,853
Mega JANE STREET GROUP, LLC $27,301,265 0.52% 322,710
Large STIFEL FINANCIAL CORP $25,925,667 0.49% 306,450
Mega UBS Group AG $25,612,227 0.49% 302,745
Mega Bank of New York Mellon Corp Bank $25,525,085 0.49% 301,715
Mega Nuveen, LLC $22,828,717 0.44% 269,843
Large Quantinno Capital Management LP $22,742,341 0.43% 268,822
Mega CITADEL ADVISORS LLC $22,675,337 0.43% 268,030
Large Qube Research & Technologies Ltd $21,613,185 0.41% 255,475
Mid FERGUSON WELLMAN CAPITAL MANAGEMENT, INC $21,277,069 0.41% 251,502
Mid LOCKHEED MARTIN INVESTMENT MANAGEMENT CO $18,163,620 0.35% 214,700
Small Beck Bode, LLC $18,013,201 0.34% 212,922
Large Point72 Asset Management, L.P. $16,417,560 0.31% 194,061
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $15,961,820 0.30% 188,674
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $15,758,526 0.30% 186,271
Mid HENNESSY ADVISORS INC $15,307,862 0.29% 180,944
Large TRUIST FINANCIAL CORP $15,155,327 0.29% 179,141
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $14,795,270 0.28% 174,885
Mid Guardian Partners Inc. $14,480,982 0.28% 171,170
Large Creative Planning $13,809,934 0.26% 163,238
Mega Invesco Ltd. $13,687,179 0.26% 161,787
Large Cetera Investment Advisers $12,753,619 0.24% 150,752
Mid XTX Topco Ltd $12,068,020 0.23% 142,648
Large HRT FINANCIAL LP $11,606,697 0.22% 137,195
Mid OPPENHEIMER ASSET MANAGEMENT INC. $11,396,212 0.22% 134,707
Mega Clearbridge Investments, LLC $11,115,932 0.21% 131,394
Large Tidal Investments LLC $10,368,999 0.20% 122,565
Mid MILLER HOWARD INVESTMENTS INC /NY $10,193,454 0.19% 120,490
Large GABELLI FUNDS LLC $10,109,700 0.19% 119,500
Large Pathstone Holdings, LLC $9,831,196 0.19% 116,208
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $9,389,669 0.18% 110,989
Mid Crossmark Global Holdings, Inc. $9,386,200 0.18% 110,948
Large LMR Partners LLP $9,128,424 0.17% 107,901
Mid QRG CAPITAL MANAGEMENT, INC. $8,607,373 0.16% 101,742
Large MML INVESTORS SERVICES, LLC $8,535,294 0.16% 100,890
Mega BNP PARIBAS ARBITRAGE, SA $8,510,844 0.16% 100,601
Mega BARCLAYS PLC $8,460,000 0.16% 100,000
Mega BARCLAYS PLC $8,460,000 0.16% 100,000
Large SEI INVESTMENTS CO $8,223,543 0.16% 97,205
Large COMMONWEALTH EQUITY SERVICES, LLC $7,801,896 0.15% 92,221
Small M. Kulyk & Associates, LLC $7,709,513 0.15% 91,129
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $7,680,918 0.15% 90,791
Large Janney Montgomery Scott LLC $7,535,660 0.14% 89,074
Mid Campbell & CO Investment Adviser LLC $7,465,611 0.14% 88,246
Mega MILLENNIUM MANAGEMENT LLC $7,250,896 0.14% 85,708
Large Corient Private Wealth LLC $7,118,413 0.14% 84,142
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $7,106,400 0.14% 84,000
Mega AQR CAPITAL MANAGEMENT LLC $6,887,030 0.13% 81,407
Large &PARTNERS $6,576,381 0.13% 77,735
Mid CIDEL ASSET MANAGEMENT INC $6,321,142 0.12% 74,718
Small Ramirez Asset Management, Inc. $6,274,697 0.12% 74,169
Mega BARCLAYS PLC $6,269,196 0.12% 74,104
Small ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/ Bank $6,176,053 0.12% 73,003
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $5,977,582 0.11% 70,657
Mid Y-Intercept (Hong Kong) Ltd $5,856,688 0.11% 69,228
Large DAVENPORT & Co LLC $5,785,709 0.11% 68,389
Small Gilman Hill Asset Management, LLC $5,686,981 0.11% 67,222
Large M&T Bank Corp Bank $5,606,354 0.11% 66,269
Small ZEVIN ASSET MANAGEMENT LLC $5,557,966 0.11% 65,697
Mega NEUBERGER BERMAN GROUP LLC $5,552,213 0.11% 65,629
Mid Atria Investments, Inc $5,347,904 0.10% 63,214
Mid Gradient Investments LLC $5,186,656 0.10% 61,308
Mid Sanctuary Advisors, LLC $4,997,152 0.10% 59,068
Large OSAIC HOLDINGS, INC. $4,988,775 0.10% 58,969
Large Mariner, LLC $4,963,820 0.09% 58,674
Mid PITTENGER & ANDERSON INC $4,834,467 0.09% 57,145
Mid Twin Tree Management, LP $4,746,060 0.09% 56,100
Mega PNC FINANCIAL SERVICES GROUP, INC. $4,675,839 0.09% 55,270
Mid TD PRIVATE CLIENT WEALTH LLC $4,597,671 0.09% 54,346
Small First Bank & Trust Bank $4,564,085 0.09% 53,949
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