13FBOX
NATIONAL GRID PLC · 13F Institutional Holdings
Options Calculator Rankings
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NATIONAL GRID PLC

Institutions
8
Combined AUM (Q2 2026)
$21.8M
Combined Shares (Q2 2026)
412,979
Overall Trend
Decrease
All institutions combined
Basis: holder count and combined value / shares merge all share classes of the same company (e.g. Class A / C); each institution is counted once, and value & shares are the sum across classes.
📥 Inflow (Q1 2026→Q2 2026)
+4,372
3 institutions added · 0 new buys
Est. buy amount
📤 Outflow (Q1 2026→Q2 2026)
-70,221
5 institutions reduced · 1 exits
Est. sell amount
⚖️ Net Share Change
-65,849
Net Sell
💰 Est. Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$21.8M
Institutions
8
New Buys
0
Adds
3
Reduces
4
Exits
1
Unchanged
1
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
Optiver Holding B.V.
<0.01%0.01%#4$15.3M185,000$18.4M218,000-33,000-15.14%Reduce
IMC-Chicago, LLC
<0.01%<0.01%#6$2.8M33,200$2.5M29,600+3,600+12.16%Add
PARADIGM ASSET MANAGEMENT CO LLC
0.32%0.35%#1$1.5M87,800$1.5M87,528+272+0.31%Add
Generali Investments CEE, investicni spolecnost, a.s.
0.04%0.05%#3$864,13552,223$868,62351,723+500+0.97%Add
GROUP ONE TRADING LLC
<0.01%<0.01%#5$762,4049,200$1.1M12,900-3,700-28.68%Reduce
KEYNOTE FINANCIAL SERVICES LLC
0.18%0.21%#2$380,3734,590$388,3144,59000.00%Unchanged
SIMPLEX TRADING, LLC
<0.01%<0.01%#7$248,6103,000$1.4M16,400-13,400-81.71%Reduce
Pacer Advisors, Inc.
<0.01%<0.01%#8$62837,966$66239,387-1,421-3.61%Reduce

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow