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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 %
GAA
26
Green Alpha Advisors
Colorado
$448K 228,348 -15,719 -6%
Ameriprise
27
Ameriprise
Minnesota
$437K 223,100 +223,100 New
RhumbLine Advisers
28
RhumbLine Advisers
Massachusetts
$400K 203,967 +53,994 +36%
Pathstone Holdings
29
Pathstone Holdings
New Jersey
$390K 198,798 -15,511 -7%
BCM
30
Bridgeway Capital Management
Texas
$384K 196,100 – –
Invesco
31
Invesco
Georgia
$383K 195,450 +91,793 +89%
Group One Trading
32
Group One Trading
Illinois
$264K 134,632 +134,632 New
SC
33
Shay Capital
New York
$254K 129,631 +1,131 +0.9%
AQR Capital Management
34
AQR Capital Management
Connecticut
$239K 121,703 +25,661 +27%
T. Rowe Price Associates
35
T. Rowe Price Associates
Maryland
$237K 120,506 +12,332 +11%
IEFM
36
IQ EQ Fund Management
Ireland
$229K 116,828 +46,884 +67%
Simplex Trading
37
Simplex Trading
Illinois
$206K 105,534 +62,625 +146%
Wells Fargo
38
Wells Fargo
California
$199K 101,716 +18,383 +22%
Deutsche Bank
39
Deutsche Bank
Germany
$193K 98,532 +31,010 +46%
Renaissance Technologies
40
Renaissance Technologies
New York
$175K 89,200 -782,556 -90%
IIM
41
INTECH Investment Management
Florida
$173K 88,497 +27,132 +44%
AC
42
AlphaCore Capital
California
$165K 83,950 +83,950 New
SC
43
Sculptor Capital
New York
$153K 78,200 – –
MIM
44
MetLife Investment Management
New Jersey
$152K 77,316 +1,301 +2%
Mirae Asset Global ETFs Holdings
45
Mirae Asset Global ETFs Holdings
Hong Kong
$151K 77,215 +6,663 +9%
EL
46
EWA LLC
Pennsylvania
$134K 68,200 -10,488 -13%
JPMorgan Chase & Co
47
JPMorgan Chase & Co
New York
$131K 66,656 +9,005 +16%
AC
48
AXQ Capital
New Jersey
$112K 57,000 +57,000 New
Mariner
49
Mariner
Kansas
$99.2K 50,594 +2,589 +5%
Citigroup
50
Citigroup
New York
$96.2K 49,107 -35,352 -42%
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