13FBOX
STONEBRIDGE ACQUISITION II CORP · 13F Institutional Holdings
Options Calculator Rankings
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STONEBRIDGE ACQUISITION II CORP

Institutions
36
Combined AUM (Q2 2026)
$57.2M
Combined Shares (Q2 2026)
9.8M
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)
+452,016
8 institutions added · 3 new buys
Est. buy amount
📤 Outflow (Q1 2026→Q2 2026)
-458,283
10 institutions reduced · 1 exits
Est. sell amount
⚖️ Net Share Change
-6,267
Net Sell
💰 Est. Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$57.2M
Institutions
36
New Buys
3
Adds
5
Reduces
9
Exits
1
Unchanged
19
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
MIZUHO SECURITIES USA LLC
0.12%0.13%#11$5.5M552,055$5.5M552,05500.00%Unchanged
RIVERNORTH CAPITAL MANAGEMENT, LLC
0.24%0.25%#4$5.1M988,650$5.0M989,034-384-0.04%Reduce
Karpus Management, Inc.
0.14%0.14%#7$4.7M465,125$4.3M433,550+31,575+7.28%Add
WOLVERINE ASSET MANAGEMENT LLC
0.04%0.04%#20$4.1M519,293$4.0M553,743-34,450-6.22%Reduce
GLAZER CAPITAL, LLC
0.09%0.08%#13$3.7M673,252$3.9M792,171-118,919-15.01%Reduce
Clear Street Group Inc.
0.01%0.01%#27$3.5M345,454$3.4M544,384-198,930-36.54%Reduce
AQR Arbitrage LLC
0.04%0.05%#18$3.0M590,163$2.9M582,425+7,738+1.33%Add
Logan Stone Capital, LLC
0.54%0.7%#1$2.6M252,000$2.5M252,00000.00%Unchanged
MANGROVE PARTNERS IM, LLC
0.15%0.19%#6$2.3M450,000$2.3M450,00000.00%Unchanged
Verition Fund Management LLC
<0.01%0.01%#29$2.1M400,000$2.0M400,00000.00%Unchanged
ARISTEIA CAPITAL, L.L.C.
0.03%0.04%#21$2.1M400,000$2.0M400,00000.00%Unchanged
Shaolin Capital Management LLC
0.13%0.14%#9$1.8M460,506$2.0M500,000-39,494-7.90%Reduce
Radcliffe Capital Management, L.P.
0.13%0.12%#10$1.7M320,000$1.6M320,00000.00%Unchanged
Polar Asset Management Partners Inc.
0.03%0.03%#22$1.6M330,000$1.5M300,000+30,000+10.00%Add
Cable Car Capital, LP
0.5%0.51%#2$1.5M300,000$1.5M300,00000.00%Unchanged
BOOTHBAY FUND MANAGEMENT, LLC
0.02%0.02%#25$1.4M275,000$1.4M275,00000.00%Unchanged
TORONTO DOMINION BANK
<0.01%<0.01%#31$1.3M121,491$1.2M121,791-300-0.25%Reduce
SONA ASSET MANAGEMENT (US) LLC
0.02%0.02%#23$1.2M117,096$1.2M117,09600.00%Unchanged
BERKLEY W R CORP
0.05%0.06%#15$1.2M113,358$1.1M113,35800.00%Unchanged
BNP PARIBAS FINANCIAL MARKETS
<0.01%<0.01%#33$927,098169,162$914,080169,16200.00%Unchanged
TWO SIGMA INVESTMENTS, LP
<0.01%<0.01%#32$921,65690,625$908,96990,62500.00%Unchanged
Westchester Capital Management, LLC
0.04%0.04%#19$813,60080,000$804,00080,00000.00%Unchanged
Crossingbridge Advisors, LLC
0.13%0.14%#8$762,75075,000$756,970101,700-26,700-26.25%Reduce
Yakira Capital Management, Inc.
0.19%0.19%#5$660,79163,660$649,33263,66000.00%Unchanged
Quarry LP
0.05%0.11%#16$622,80060,000$612,00060,00000.00%Unchanged
RLH Capital LLC
0.28%0.29%#3$584,77557,500$577,58857,50000.00%Unchanged
HEIGHTS CAPITAL MANAGEMENT, INC
0.12%0.14%#12$519,92590,126$512,51091,831-1,705-1.86%Reduce
Lineage Point Capital LP
0.08%0.1%#14$413,12439,800$405,96039,80000.00%Unchanged
Warberg Asset Management LLC
0.04%0.05%#17$241,02923,700$276,23827,500-3,800-13.82%Reduce
ABC ARBITRAGE SA
0.02%0.03%#24$206,60040,000$203,41240,00000.00%Unchanged
SUSQUEHANNA INTERNATIONAL GROUP, LLP
<0.01%#34$122,93011,843$00+11,843New Buy
HIGHBRIDGE CAPITAL MANAGEMENT LLC
<0.01%<0.01%#30$98,587616,167$74,310616,16700.00%Unchanged
Decagon Asset Management LLP
0.01%0.01%#26$59,312370,703$44,358367,803+2,900+0.79%Add
METEORA CAPITAL, LLC
<0.01%#28$47,829367,912$00+367,912New Buy
UBS Group AG
<0.01%<0.01%#35$54052$32632+20+62.50%Add
MORGAN STANLEY
<0.01%#36$28528$00+28New Buy

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow