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QUMS

Quantumsphere Acquisition Corp
QUMS

25 hedge funds and large institutions have $65.7M invested in Quantumsphere Acquisition Corp in 2025 Q4 according to their latest regulatory filings, with 22 funds opening new positions, 2 increasing their positions, reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

2,100% more first-time investments, than exits

New positions opened: 22 | Existing positions closed: 1

675% more capital invested

Capital invested by funds: $8.48M → $65.7M (+$57.2M)

525% more funds holding

Funds holding: 425 (+21)

57.59% more ownership

Funds ownership: 0%57.59% (+58%)

Holders
25
Holders Change
+21
Holders Change %
+525%
% of All Funds
0.3%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
22
Increased
2
Reduced
Closed
1
Calls
Puts
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
MSU
1
Mizuho Securities USA
New York
$7.13M +$7.16M +718,086 New
WAM
2
Wolverine Asset Management
Illinois
$5.76M +$5.74M +575,222 New
KIM
3
Karpus Investment Management
New York
$4.95M +$4.93M +494,350 New
SCM
4
Shaolin Capital Management
Florida
$4.8M +$4.79M +480,000 New
CS
5
Clear Street
New York
$4.25M +$4.22M +423,363 +30,262%
GCL
6
Glazer Capital LLC
New York
$4.25M +$4.23M +424,153 New
D.E. Shaw & Co
7
D.E. Shaw & Co
New York
$4.1M +$4.09M +409,860 New
LA
8
Linden Advisors
New York
$4M +$3.99M +400,000 New
AA
9
AQR Arbitrage
Connecticut
$3.23M +$3.22M +322,660 New
WRBC
10
W.R. Berkley Corp
Connecticut
$3.04M +$3.03M +303,580 New
HIM
11
HGC Investment Management
Ontario, Canada
$3M +$2.99M +300,000 New
WCMNY
12
Westchester Capital Management (New York)
New York
$2.5M +$2.49M +250,000 New
Hudson Bay Capital Management
13
Hudson Bay Capital Management
Connecticut
$2.35M
Two Sigma Investments
14
Two Sigma Investments
New York
$2.18M +$2.17M +217,479 New
Toronto Dominion Bank
15
Toronto Dominion Bank
Ontario, Canada
$1.76M +$1.75M +175,778 New
CCC
16
Cable Car Capital
California
$1.75M +$1.74M +174,801 New
HCM
17
Heights Capital Management
California
$1.5M +$1.5M +150,000 New
RCM
18
Radcliffe Capital Management
Pennsylvania
$1.5M +$1.5M +150,000 New
PC
19
Periscope Capital
Ontario, Canada
$1.25M +$1.25M +125,000 New
BNP Paribas Financial Markets
20
BNP Paribas Financial Markets
France
$1.02M +$1.02M +102,340 New
SSA
21
Schonfeld Strategic Advisors
New York
$551K +$549K +55,000 New
WAM
22
Warberg Asset Management
Illinois
$415K +$413K +41,421 New
VF
23
Virtu Financial
New York
$248K +$98.3K +9,849 +66%
LSC
24
Logan Stone Capital
Illinois
$145K +$145K +14,500 New
Morgan Stanley
25
Morgan Stanley
New York
$300 +$299 +30 New