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Quantum-Si Incorporated
QSI

Overview Fund Activity

134 hedge funds and large institutions have $69.2M invested in Quantum-Si Incorporated in 2025 Q1 according to their latest regulatory filings, with 38 funds opening new positions, 39 increasing their positions, 35 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
134
Holders Change
+14
Holders Change %
+11.67%
% of All Funds
1.82%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
38
Increased
39
Reduced
35
Closed
21
Calls
$1.48M
Puts
$1.89M
Net Calls
-$418K
Net Calls Change
-$3.93M

Top Buyers

1
Millennium Management
Millennium Management
New York
+$4.72M
2
Vanguard Group
Vanguard Group
Pennsylvania
+$1.68M
3
BlackRock
BlackRock
New York
+$1.2M
4
Two Sigma Investments
Two Sigma Investments
New York
+$797K
5
Geode Capital Management
Geode Capital Management
Massachusetts
+$752K

Top Sellers

1
Morgan Stanley
Morgan Stanley
New York
-$3.83M
2
Goldman Sachs
Goldman Sachs
New York
-$673K
3
CC
Centiva Capital
New York
-$387K
4
Simplex Trading
Simplex Trading
Illinois
-$314K
5
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$247K
Name Holding Trade Value Shares
Change 		Shares
Change %
TRCT
76
Tower Research Capital (TRC)
New York
$25.2K -$2.79K -2,321 -10%
LPL Financial
77
LPL Financial
California
$24.1K +$24.1K +20,112 New
CIBC World Market
78
CIBC World Market
Ontario, Canada
$24K +$24K +20,011 New
HCM
79
Hollencrest Capital Management
California
$24K +$24K +20,000 New
Cetera Investment Advisers
80
Cetera Investment Advisers
Illinois
$22.9K +$6.87K +5,721 +43%
DIM
81
DLK Investment Management
California
$22.8K – – –
SS
82
SBI Securities
Japan
$22.8K -$3.95K -3,291 -15%
SWA
83
Stratos Wealth Advisors
Ohio
$22K +$22K +18,310 New
Victory Capital Management
84
Victory Capital Management
Texas
$19.9K +$5.44K +4,529 +38%
Neuberger Berman Group
85
Neuberger Berman Group
New York
$19.1K +$19.1K +15,919 New
KAS
86
Kestra Advisory Services
Texas
$18.1K +$18.1K +15,090 New
MSFP
87
Mark Sheptoff Financial Planning
Connecticut
$17.4K +$9K +7,500 +107%
FPW
88
Flagship Private Wealth
Massachusetts
$17K – – –
HSBC Holdings
89
HSBC Holdings
United Kingdom
$16.6K +$2.67K +2,245 +19%
PA
90
Procyon Advisors
Connecticut
$16.4K – – –
Royal Bank of Canada
91
Royal Bank of Canada
Ontario, Canada
$16K +$969 +813 +6%
State Board of Administration of Florida Retirement System
92
State Board of Administration of Florida Retirement System
Florida
$14.8K +$14.8K +12,300 New
DA
93
Dash Acquisitions
California
$14.6K +$14.6K +10,000 New
AHL
94
Abel Hall LLC
Louisiana
$14.4K +$1.89K +1,576 +15%
TFS
95
Thoroughbred Financial Services
Tennessee
$14K -$24.5K -21,000 -64%
National Bank of Canada
96
National Bank of Canada
Quebec, Canada
$13.3K +$13.3K +11,100 New
PS
97
Principal Securities
Iowa
$13.3K – – –
FIM
98
Freedom Investment Management
Connecticut
$13.3K -$6.5K -5,414 -33%
SP
99
SIH Partners
Delaware
$12.7K +$12.7K +10,624 New
BA
100
Ballew Advisors
Mississippi
$12.5K +$12.5K +10,000 New
2 3
4
5 6