13FBOX
Quantumsphere Acquisition Corp · 13F Institutional Holdings
Options Calculator Rankings
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Q

Quantumsphere Acquisition Corp

Institutions
35
Combined AUM (Q2 2026)
$83.1M
Combined Shares (Q2 2026)
14.6M
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)
+694,403
7 institutions added · 2 new buys
Est. buy amount
📤 Outflow (Q1 2026→Q2 2026)
-776,704
16 institutions reduced · 2 exits
Est. sell amount
⚖️ Net Share Change
-82,301
Net Sell
💰 Est. Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$83.1M
Institutions
35
New Buys
2
Adds
5
Reduces
14
Exits
2
Unchanged
14
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
BERKLEY W R CORP
0.43%0.28%#3$9.0M905,510$5.2M543,650+361,860+66.56%Add
MIZUHO SECURITIES USA LLC
0.17%0.17%#9$7.4M731,984$7.4M731,98400.00%Unchanged
WOLVERINE ASSET MANAGEMENT LLC
0.05%0.06%#18$6.2M735,536$6.1M739,197-3,661-0.50%Reduce
Karpus Management, Inc.
0.14%0.16%#10$4.8M469,875$5.0M493,875-24,000-4.86%Reduce
RIVERNORTH CAPITAL MANAGEMENT, LLC
0.21%0.22%#6$4.4M848,636$4.4M849,024-388-0.05%Reduce
Shaolin Capital Management LLC
0.3%0.33%#5$4.2M885,140$5.0M940,000-54,860-5.84%Reduce
D. E. Shaw & Co., Inc.
<0.01%<0.01%#28$4.2M534,860$4.2M534,86000.00%Unchanged
GLAZER CAPITAL, LLC
0.1%0.09%#12$4.2M820,846$4.4M843,774-22,928-2.72%Reduce
LINDEN ADVISORS LP
0.02%0.02%#22$4.2M800,000$4.1M800,00000.00%Unchanged
Polar Asset Management Partners Inc.
0.07%0.08%#16$4.2M800,000$4.1M800,00000.00%Unchanged
HIGHBRIDGE CAPITAL MANAGEMENT LLC
0.1%0.05%#14$3.9M684,923$1.4M811,482-126,559-15.60%Reduce
Westchester Capital Management, LLC
0.18%0.16%#8$3.6M450,000$3.5M350,000+100,000+28.57%Add
AQR Arbitrage LLC
0.05%0.05%#19$3.3M636,771$3.2M629,296+7,475+1.19%Add
RLH Capital LLC
1.24%0.53%#1$2.6M434,900$1.1M284,900+150,000+52.65%Add
Hudson Bay Capital Management LP
0.01%0.01%#24$2.4M385,000$2.4M385,00000.00%Unchanged
Clear Street Group Inc.
<0.01%0.01%#25$2.0M410,315$2.1M421,841-11,526-2.73%Reduce
Cable Car Capital, LP
0.59%0.6%#2$1.8M349,602$1.8M349,60200.00%Unchanged
Radcliffe Capital Management, L.P.
0.12%0.12%#11$1.6M300,000$1.6M300,00000.00%Unchanged
HEIGHTS CAPITAL MANAGEMENT, INC
0.36%0.43%#4$1.6M256,968$1.6M288,181-31,213-10.83%Reduce
BNP PARIBAS FINANCIAL MARKETS
<0.01%<0.01%#30$1.2M217,388$1.2M217,38800.00%Unchanged
TORONTO DOMINION BANK
<0.01%<0.01%#29$1.2M817,905$2.9M936,437-118,532-12.66%Reduce
Crossingbridge Advisors, LLC
0.19%0.2%#7$1.1M107,825$1.1M107,82500.00%Unchanged
PERISCOPE CAPITAL INC.
0.07%0.12%#15$786,588200,000$1.0M225,000-25,000-11.11%Reduce
Quarry LP
0.06%#17$766,50075,000$00+75,000New Buy
GABELLI & Co INVESTMENT ADVISERS, INC.
0.1%0.1%#13$699,34167,700$698,66467,70000.00%Unchanged
GABELLI FUNDS LLC
<0.01%<0.01%#26$591,90957,300$591,33657,30000.00%Unchanged
Schonfeld Strategic Advisors LLC
<0.01%<0.01%#27$570,809109,200$568,592109,500-300-0.27%Reduce
HRT FINANCIAL LP
<0.01%<0.01%#31$309,90030,000$304,00030,138-138-0.46%Reduce
Harraden Circle Investments, LLC
0.03%0.05%#21$197,791993,926$248,482993,92600.00%Unchanged
Logan Stone Capital, LLC
0.03%0.04%#20$148,13914,495$146,74014,500-5-0.03%Reduce
JPMORGAN CHASE & CO
<0.01%<0.01%#33$103,30010,000$101,50010,00000.00%Unchanged
HGC Investment Management Inc.
0.01%0.69%#23$59,700300,000$3.1M600,000-300,000-50.00%Reduce
BOOTHBAY FUND MANAGEMENT, LLC
<0.01%<0.01%#32$16,070100,000$25,000100,00000.00%Unchanged
UBS Group AG
<0.01%<0.01%#34$6,90316,506$7,25016,491+15+0.09%Add
MORGAN STANLEY
<0.01%#35$54253$00+53New Buy

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow