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Quantum-Si Incorporated
QSI

Overview Fund Activity

131 hedge funds and large institutions have $124M invested in Quantum-Si Incorporated in 2025 Q2 according to their latest regulatory filings, with 15 funds opening new positions, 55 increasing their positions, 33 reducing their positions, and 15 closing their positions.

Holders
131
Holders Change
-3
Holders Change %
-2.24%
% of All Funds
1.76%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
15
Increased
55
Reduced
33
Closed
15
Calls
$2.33M
Puts
$2.11M
Net Calls
+$220K
Net Calls Change
+$638K

Top Buyers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$17M
2
BlackRock
2
BlackRock
New York
$21.3M
3
Northern Trust
3
Northern Trust
Illinois
$4.49M
4
NL
4
Nuveen LLC
North Carolina
$2.21M
5
Geode Capital Management
5
Geode Capital Management
Massachusetts
$6.76M

Top Sellers

1
Renaissance Technologies
1
Renaissance Technologies
New York
$175K
2
AIM
2
ARK Investment Management
Florida
$15.6M
3
XT
3
XTX Topco
Cayman Islands
$91.1K
4
Two Sigma Investments
4
Two Sigma Investments
New York
$1.11M
5
Sumitomo Mitsui Trust Group
5
Sumitomo Mitsui Trust Group
Japan
$11M
Name Market Value Shares Shares
Change 		Shares
Change %
Manulife (Manufacturers Life Insurance)
51
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$96.2K 49,082 +10,564 +27%
Jones Financial Companies
52
Jones Financial Companies
Missouri
$91.5K 46,900 +43,900 +1,463%
XT
53
XTX Topco
Cayman Islands
$91.1K 46,474 -322,494 -87%
Wolverine Trading
54
Wolverine Trading
Illinois
$78.8K 40,425 -33 -0.1%
VOYA Investment Management
55
VOYA Investment Management
Georgia
$76.2K 38,863 +9,311 +32%
Cambridge Investment Research Advisors
56
Cambridge Investment Research Advisors
Iowa
$76K 38,867 – –
Osaic Holdings
57
Osaic Holdings
Arizona
$75.3K 27,908 +26,788 +2,392%
TSS
58
Two Sigma Securities
New York
$74.2K 37,861 -14,359 -27%
RWI
59
Red Wave Investments
Pennsylvania
$72.5K 37,000 – –
CAPTRUST Financial Advisors
60
CAPTRUST Financial Advisors
North Carolina
$67.2K 34,310 -273 -0.8%
SEI Investments
61
SEI Investments
Pennsylvania
$64.9K 33,103 – –
SG Americas Securities
62
SG Americas Securities
New York
$63K 32,181 -7,898 -20%
PFSRSONJ
63
Police & Firemen's Retirement System of New Jersey
New Jersey
$61K 31,134 – –
Russell Investments Group
64
Russell Investments Group
United Kingdom
$58.6K 29,901 -8,356 -22%
ProShare Advisors
65
ProShare Advisors
Maryland
$56.7K 28,924 +2,908 +11%
WMA
66
Wealth Management Associates
New Jersey
$52.8K 26,950 – –
SS
67
SBI Securities
Japan
$51.2K 26,141 +7,171 +38%
New York State Common Retirement Fund
68
New York State Common Retirement Fund
New York
$51K 26,084 – –
Commonwealth Equity Services
69
Commonwealth Equity Services
Massachusetts
$50K 25,515 -15,353 -38%
Mercer Global Advisors
70
Mercer Global Advisors
Colorado
$49.5K 25,260 -1,853 -7%
HCM
71
Hollencrest Capital Management
California
$49K 25,000 +5,000 +25%
HAS
72
HBW Advisory Services
California
$47.5K 24,253 +10 +0%
VPIM
73
Vanguard Personalized Indexing Management
California
$47.2K 24,091 +614 +3%
LPL Financial
74
LPL Financial
California
$45.6K 23,290 +3,178 +16%
AI
75
Atom Investors
Texas
$40.8K 20,803 -9,369 -31%
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