Quantum-Si Inc - Common Stock (QSI)

Historical Holders from Q2 2021 to Q2 2025

Symbol
QSI on Nasdaq
CUSIP
74765K105
Type / Class
Equity / Common Stock
Shares outstanding
164M
All holders as of June 30, 2025
Q2 2025
Total 13F shares, excl. options
64.3M
Holdings value
$126M
% of all portfolios
0%
Grand Portfolio weight change
+0%
Number of holders
131
Number of buys
69
Number of sells
-48
Average Value change %
0%
Average buys %
+0%
Average sells %
0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Quantum-Si Inc - Common Stock (QSI)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
ROTHBERG JONATHAN M 100% 0% $30.1M 19.9M 0% ROTHBERG JONATHAN M. Sep 9, 2025
VANGUARD GROUP INC 5.3% $13.1M 8.67M The Vanguard Group Jun 30, 2025
ARK Investment Management LLC 4.77% -11.4% $11.8M -$1.37M 7.81M -10.4% ARK Investment Management LLC May 31, 2025
Sumitomo Mitsui Trust Group, Inc. 4.8% $7.46M 5.97M Sumitomo Mitsui Trust Group, Inc. Dec 31, 2024
Nikko Asset Management Americas, Inc. 4.85% $7.46M 5.97M Nikko Asset Management Americas, Inc. Dec 31, 2024

Institutional Holders of Quantum-Si Inc - Common Stock (QSI)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q2 64.3M $126M +$13.3M $1.96 131
2025 Q1 57.7M $69.2M +$4.28M $1.20 132
2024 Q4 53.6M $145M +$7.42M $2.70 118
2024 Q3 52M $45.8M -$1.3M $0.88 105
2024 Q2 53.5M $56M +$296K $1.05 96
2024 Q1 52.9M $104M -$7.05M $1.97 93
2023 Q4 44.6K $89.7K -$13K $2.01 1
2023 Q3 54.5M $90.5M +$17.1M $1.66 91
2023 Q2 43.8M $78.4M +$757K $1.79 86
2023 Q1 43.4M $76.4M -$11.1M $1.76 94
2022 Q4 50.5M $92.3M +$3.53M $1.83 93
2022 Q3 47.3M $130M -$2.21M $2.75 87
2022 Q2 34.5M $80.1M +$617K $2.32 87
2022 Q1 45.9M $215M -$18.7M $4.68 85
2021 Q4 47M $370M +$7.27M $7.87 88
2021 Q3 44.6M $372M -$32.2M $8.34 70
2021 Q2 44.4M $535M +$534M $12.26 69