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Quantum-Si (QSI)
NASDAQ:QSI
Quantum-Si (QSI) Ownership Overview
21.54% Insiders
6.94% Mutual Funds
9.23% Other Institutional Investors
12.33% ETFs
49.97% Public Companies and Individual Investors
The ownership structure of Quantum-Si (QSI) stock is a mix of institutional, retail, and individual investors. Approximately 28.50% of the company’s stock is owned by Institutional Investors, 21.54% is owned by Insiders, and 49.97% is owned by Public Companies and Individual Investors.
Recent Insider Trading Activity
Date | Name | Activity | Value |
|---|---|---|---|
Mar 09, 2026 | xxxxxxxxxxxxx | $104396 | |
Mar 09, 2026 | xxxxxxxxxxxxx | $455000 | |
Dec 22, 2025 | xxxxxxxxxxxxx | $15178 | |
Dec 22, 2025 | xxxxxxxxxxxxx | $27847 |
Recent Hedge Fund Trading Activity
Date | Firm | Activity | Value |
|---|---|---|---|
Dec 31, 2025 | xxxxxxxxxxxxx | $15864 | |
Dec 31, 2025 | xxxxxxxxxxxxx | $7723728 |
Top Shareholders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 33,644,178 | Insider | 17.20% | 34,989,945 | |
| 8,257,315 | Institution | 4.22% | 8,587,608 | |
| 7,594,906 | Institution | 3.88% | 7,898,702 | |
| 7,372,658 | Institution | 3.77% | 7,667,564 | |
| 7,021,571 | Institution | 3.59% | 7,302,434 | |
| 6,619,530 | Institution | 3.39% | 6,884,311 | |
| 2,578,018 | Insider | 1.32% | 2,681,139 | |
| 1,772,865 | Institution | 0.91% | 1,843,780 | |
| 1,701,905 | Institution | 0.87% | 1,769,981 | |
| 1,220,512 | Insider | 0.62% | 1,269,332 |
Top Mutual Fund Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 6,619,530 | Institution | 3.39% | 6,884,311 | |
| 1,772,865 | Institution | 0.91% | 1,843,780 | |
| 1,701,905 | Institution | 0.87% | 1,769,981 | |
| 882,880 | Institution | 0.45% | 918,195 | |
| 639,421 | Institution | 0.33% | 664,998 | |
| 497,059 | Institution | 0.25% | 516,941 | |
| 468,088 | Institution | 0.24% | 486,812 | |
| 255,000 | Institution | 0.13% | 265,200 | |
| 119,273 | Institution | 0.06% | 124,044 | |
| 113,870 | Institution | 0.06% | 118,425 |
Top ETF Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 7,087,506 | Institution | 3.62% | 7,371,006 | |
| 4,874,730 | Institution | 2.49% | 5,362,203 | |
| 3,909,511 | Institution | 2.00% | 4,065,891 | |
| 1,995,538 | Institution | 1.02% | 2,195,092 | |
| 1,317,921 | Institution | 0.67% | 1,370,638 | |
| 1,213,358 | Institution | 0.62% | 1,261,892 | |
| 773,632 | Institution | 0.40% | 850,995 | |
| 496,339 | Institution | 0.25% | 545,973 | |
| 431,774 | Institution | 0.22% | 449,045 | |
| 412,286 | Institution | 0.21% | 428,777 |
FAQ
Who Owns Quantum-Si (QSI)?
According to the latest TipRanks data, approximately 9.23% of the company's stock is held by institutional investors, 21.54% is held by insiders, and 49.97% is held by retail investors.
What percentage of Quantum-Si (QSI) stock is held by institutional investors?
According to the latest TipRanks data, approximately 9.23% of Quantum-Si (QSI) stock is held by institutional investors.
What percentage of Quantum-Si (QSI) stock is held by retail investors?
According to the latest TipRanks data, approximately 49.97% of Quantum-Si (QSI) stock is held by retail investors.
Who owns the most shares of Quantum-Si (QSI)?
JONATHAN M ROTHBERG owns the most shares of Quantum-Si (QSI).
What is the significance of the ownership structure for a publicly traded company?
The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.