Q2 2025 13F Holders as of 6/30/2025
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Type / Class
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Equity / Common Stock
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Shares outstanding
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164M
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Number of holders
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131
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Total 13F shares, excl. options
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64.3M
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Shares change
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+6.65M
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Total reported value, excl. options
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$126M
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Value change
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+$13.3M
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Put/Call ratio
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1.37
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Number of buys
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69
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Number of sells
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-48
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Price
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$1.96
Significant Holders of Quantum-Si Inc - Common Stock (QSI) as of Q2 2025
159 filings reported holding QSI - Quantum-Si Inc - Common Stock as of Q2 2025.
Quantum-Si Inc - Common Stock (QSI) has 131 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC).
These institutions hold a total of 64.3M shares
of 164M outstanding shares and own 39.31% of the company stock.
Largest 10 shareholders include BlackRock, Inc. (10.8M shares), VANGUARD GROUP INC (8.67M shares), ARK Investment Management LLC (7.96M shares), Nikko Asset Management Americas, Inc. (5.62M shares), Sumitomo Mitsui Trust Group, Inc. (5.62M shares), MILLENNIUM MANAGEMENT LLC (3.78M shares), GEODE CAPITAL MANAGEMENT, LLC (3.45M shares), STATE STREET CORP (2.76M shares), NORTHERN TRUST CORP (2.29M shares), and Nuveen, LLC (1.13M shares).
This table shows the top 131 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
| Investor |
Option |
Weight % |
Change % |
Value $ |
* Price $ |
Shares |
Share Change |
Activity |
Report Period |
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.