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Quantum-Si (QSI) Institutional Ownership

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$1.07 -0.01 (-0.93%)
Closing price 04:00 PM Eastern
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Institutional Ownership Changes (13F Filings) for Quantum-Si (NASDAQ:QSI)

Current
Institutional Ownership
Percentage
39.90%
Number of
Institutional Buyers
(last 12 months)
57
Total
Institutional Inflows
(last 12 months)
$13.86M
Number of
Institutional Sellers
(last 12 months)
18
Total
Institutional Outflows
(last 12 months)
$23.73M
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QSI Institutional Buying and Selling by Quarter

Quantum-Si Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/16/2025 Nikko Asset Management Americas Inc.5,621,303$11.02M0.1%-3.3%3.063%
8/15/2025 Bank of America Corp DE465,999$913K0.0%+426.6%0.254%
8/15/2025 Ameriprise Financial Inc.223,100$437K0.0%N/A0.122%
8/14/2025 The Manufacturers Life Insurance Company 49,082$96K0.0%+27.4%0.027%
8/14/2025 Cerity Partners LLC14,881$29K0.0%N/A0.008%
8/13/2025 Invesco Ltd.195,450$383K0.0%+88.6%0.107%
8/12/2025 XTX Topco Ltd46,474$91K0.0%-87.4%0.025%
8/12/2025Jefferies Financial Group Inc.20,000$39K0.0%-71.7%0.011%
8/12/2025 Prudential Financial Inc.12,850$25K0.0%N/A0.007%
8/12/2025 Rhumbline Advisers203,967$400K0.0%+36.0%0.111%
8/12/2025 JPMorgan Chase & Co.66,656$131K0.0%+15.6%0.036%
8/8/2025 Kingsview Wealth Management LLC20,012$39K0.0%+99.9%0.011%
8/8/2025 Intech Investment Management LLC88,497$173K0.0%+44.2%0.048%
8/8/2025 Geode Capital Management LLC3,447,738$6.76M0.0%+15.1%1.879%
8/4/2025 Wolverine Asset Management LLC16,501$32K0.0%+140.0%0.009%
8/1/2025 IQ EQ FUND MANAGEMENT IRELAND Ltd116,828$229K0.0%+67.0%0.064%
8/1/2025 Green Alpha Advisors LLC228,348$448K0.4%-6.4%0.124%
7/31/2025 Sumitomo Mitsui Trust Group Inc.5,621,303$11.02M0.0%-3.3%3.063%
7/30/2025 ARK Investment Management LLC7,960,736$15.60M0.1%-8.6%4.338%
7/29/2025 JTC Employer Solutions Trustee Ltd13,340$26K0.0%N/A0.007%
7/18/2025 EWA LLC68,200$134K0.0%-13.3%0.037%
6/27/2025 Goldman Sachs Group Inc.441,314$530K0.0%-56.0%0.240%
5/28/2025 Wealth Management Associates Inc.26,950$32K0.0%-23.1%0.015%
5/16/2025 Goldman Sachs Group Inc.441,314$530K0.0%-56.0%0.241%
5/16/2025 Millennium Management LLC3,934,285$4.72M0.0%N/A2.148%
5/16/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.70,552$85K0.0%+23.8%0.039%
5/14/2025 Corebridge Financial Inc.58,876$71K0.0%+18.2%0.032%
5/14/2025 MetLife Investment Management LLC76,015$91K0.0%N/A0.042%
5/13/2025 Russell Investments Group Ltd.38,257$46K0.0%+322.6%0.021%
5/12/2025 Nuveen LLC319,100$383K0.0%N/A0.174%
5/12/2025 Virtu Financial LLC34,830$42K0.0%N/A0.019%
5/12/2025 Invesco Ltd.103,657$124K0.0%+177.7%0.057%
5/9/2025 Deutsche Bank AG67,522$81K0.0%+107.4%0.037%
5/9/2025 Charles Schwab Investment Management Inc.367,444$441K0.0%+19.3%0.201%
5/9/2025 IQ EQ FUND MANAGEMENT IRELAND Ltd69,944$84K0.0%+106.3%0.038%
5/8/2025 XTX Topco Ltd368,968$443K0.0%+50.2%0.201%
5/7/2025 ARK Investment Management LLC8,713,501$10.46M0.1%-1.5%4.758%
5/7/2025 Nikko Asset Management Americas Inc.5,811,430$6.92M0.1%-2.6%3.173%
4/29/2025 Bank of New York Mellon Corp294,906$354K0.0%+9.3%0.161%
4/25/2025 Sumitomo Mitsui Trust Group Inc.5,811,430$6.97M0.0%-2.6%3.173%
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4/22/2025 EWA LLC78,688$94K0.0%N/A0.043%
4/21/2025 WestHill Financial Advisors Inc.21,727$26K0.0%N/A0.012%
4/9/2025 HBW Advisory Services LLC24,243$29K0.0%N/A0.013%
4/9/2025 Green Alpha Advisors LLC244,067$293K0.3%+53.6%0.133%
3/17/2025 Wealth Enhancement Advisory Services LLC13,384$36K0.0%N/A0.007%
2/18/2025 Alpine Global Management LLC13,785$37K0.0%N/A0.010%
2/17/2025 Two Sigma Investments LP152,683$412K0.0%N/A0.107%
2/17/2025 Shay Capital LLC216,546$585K0.1%+56.7%0.152%
2/17/2025 ProShare Advisors LLC28,204$76K0.0%+49.0%0.020%
2/17/2025Nuveen Asset Management LLC319,100$862K0.0%-43.5%0.224%
2/17/2025 Cetera Investment Advisers13,380$36K0.0%N/A0.009%
2/17/2025 Centiva Capital LP143,176$387K0.0%N/A0.100%
2/17/2025 Bridgeway Capital Management LLC296,100$799K0.0%-27.2%0.207%
2/17/2025 Balyasny Asset Management L.P.13,488$36K0.0%N/A0.009%
2/17/2025 Bank of America Corp DE111,871$302K0.0%+13.4%0.078%
2/17/2025 BNP Paribas Financial Markets19,025$51K0.0%N/A0.013%
2/14/2025 Mercer Global Advisors Inc. ADV30,959$84K0.0%N/A0.022%
2/14/2025 Northern Trust Corp841,146$2.27M0.0%+5.0%0.589%
2/14/2025 The Manufacturers Life Insurance Company34,850$94K0.0%N/A0.024%
2/14/2025 Voya Investment Management LLC30,863$83K0.0%-15.4%0.022%
2/14/2025 Price T Rowe Associates Inc. MD109,114$295K0.0%+12.1%0.076%
2/14/2025 Alpine Global Management LLC13,785$37K0.0%N/A0.010%
2/14/2025 Tower Research Capital LLC TRC23,347$63K0.0%+139.3%0.016%
2/13/2025 Jump Financial LLC12,385$33K0.0%N/A0.009%
2/13/2025 Guggenheim Capital LLC199,999$540K0.0%-17.5%0.140%
2/13/2025 XTX Topco Ltd245,585$663K0.1%+460.5%0.172%
2/13/2025 Mariner LLC33,439$90K0.0%+29.1%0.023%
2/13/2025 Barclays PLC150,616$406K0.0%-23.5%0.106%
2/13/2025 Renaissance Technologies LLC544,956$1.47M0.0%+1,211.4%0.382%
2/13/2025 Wells Fargo & Company MN71,980$194K0.0%+13.9%0.050%
2/12/2025 Thoroughbred Financial Services LLC33,000$89K0.0%N/A0.023%
2/12/2025 Geode Capital Management LLC2,368,376$6.40M0.0%+2.2%1.660%
2/12/2025 IQ EQ FUND MANAGEMENT IRELAND Ltd33,902$92K0.0%+29.4%0.024%
2/12/2025 WINTON GROUP Ltd34,610$93K0.0%N/A0.024%
2/11/2025 Dudley Capital Management LLC11,000$30K0.0%N/A0.008%
2/11/2025 AXQ Capital LP34,067$92K0.0%N/A0.024%
2/10/2025 Nikko Asset Management Americas Inc.5,965,208$16.05M0.2%-20.8%4.180%
2/10/2025 Commonwealth Equity Services LLC31,013$84K0.0%+46.7%0.022%
2/6/2025 Charles Schwab Investment Management Inc.308,021$832K0.0%+32.6%0.216%
2/6/2025 Bravias Capital Group LLC20,250$55K0.0%N/A0.014%
2/6/2025 SBI Securities Co. Ltd.22,261$60K0.0%N/A0.016%
2/4/2025 ARK Investment Management LLC8,848,650$23.89M0.2%-25.3%6.200%
2/4/2025 Bank of New York Mellon Corp269,807$728K0.0%+21.3%0.189%
2/3/2025 Wolverine Asset Management LLC9,632$26K0.0%N/A0.007%
1/31/2025Sanctuary Advisors LLC35,243$95K0.0%N/A0.025%
1/30/2025 Rhumbline Advisers148,946$402K0.0%+3.7%0.104%
1/28/2025 Sumitomo Mitsui Trust Group Inc.5,965,208$16.11M0.0%-21.0%4.180%
1/23/2025 Abel Hall LLC10,432$28K0.0%N/A0.007%
1/17/2025 SG Americas Securities LLC67,588$182K0.0%+12.4%0.047%
1/13/2025 Green Alpha Advisors LLC158,858$429K0.3%-9.3%0.111%
Washington prepares for war (Ad)

While the headlines obsess over overseas conflicts, Washington has been quietly preparing for something much bigger here at home. Emergency powers are being invoked, trillions are being mobilized, and the scale rivals anything we’ve seen since WWII. According to Porter Stansberry and Jeff Brown, a new economic arms race is already underway — one that could reshape markets, redirect capital, and impact billions of lives. They’ve just released an urgent briefing that explains what’s really happening behind the scenes, and which companies are positioned to benefit most.tc pixel

Click here now to watch the urgent wartime exposé
11/19/2024 Barclays PLC196,826$173K0.0%+210.5%0.138%
11/16/2024 Geode Capital Management LLC2,316,921$2.04M0.0%+6.7%1.627%
11/15/2024 Barclays PLC196,826$173K0.0%+210.5%0.138%
11/15/2024 XTX Topco Ltd43,812$39K0.0%+81.3%0.031%
11/15/2024 Jane Street Group LLC256,689$226K0.0%-15.6%0.180%
11/15/2024 State Street Corp2,269,038$2.00M0.0%-4.3%1.594%
11/12/2024 Charles Schwab Investment Management Inc.232,360$205K0.0%-10.8%0.163%
11/5/2024 Sumitomo Mitsui Trust Group Inc.7,547,912$6.66M0.0%-4.0%5.302%
11/5/2024 GSA Capital Partners LLP112,317$99K0.0%-38.4%0.079%
10/31/2024 ARK Investment Management LLC11,842,609$10.45M0.1%-4.6%8.319%
(Data available from 1/1/2016 forward)

QSI Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of QSI shares?

During the previous two years, 84 institutional investors and hedge funds held shares of Quantum-Si. The most heavily invested institutionals were ARK Investment Management LLC ($15.60M), Nikko Asset Management Americas Inc. ($11.02M), Sumitomo Mitsui Trust Group Inc. ($11.02M), Vanguard Group Inc. ($10.44M), Sumitomo Mitsui Trust Holdings Inc. ($8.26M), Geode Capital Management LLC ($6.76M), and Millennium Management LLC ($4.72M).Learn more on Quantum-Si's institutional investors.

What percentage of Quantum-Si's stock is owned by institutional investors?

39.90% of Quantum-Si's stock is owned by institutional investors. Learn more on QSI's institutional investor holdings.

Which institutional investors have been buying Quantum-Si's stock?

Of the 70 institutional investors that purchased Quantum-Si's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Sumitomo Mitsui Trust Holdings Inc. ($6.91M), Millennium Management LLC ($3.93M), ARK Investment Management LLC ($2.76M), Geode Capital Management LLC ($649.40K), Jacobs Levy Equity Management Inc. ($506.70K), Renaissance Technologies LLC ($503.40K), and Bank of America Corp DE ($390.69K).

How much institutional buying is happening at Quantum-Si?

Institutional investors have bought a total of 8,626,255 shares in the last 24 months. This purchase volume represents approximately $13.86M in transactions.

Which of Quantum-Si's major shareholders have been selling company stock?

Of the 18 institutional investors that sold Quantum-Si's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: ARK Investment Management LLC ($4.45M), Sumitomo Mitsui Trust Group Inc. ($2.24M), Nikko Asset Management Americas Inc. ($1.91M), Goldman Sachs Group Inc. ($1.12M), XTX Topco Ltd ($322.49K), Nuveen Asset Management LLC ($245.98K), and Bridgeway Capital Management LLC ($110.60K).

How much institutional selling is happening at Quantum-Si?

Institutional investors have sold a total of 10,841,609 shares in the last 24 months. This volume of shares sold represents approximately $23.73M in transactions.


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This page (NASDAQ:QSI) was last updated on 9/3/2025 by MarketBeat.com Staff
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