Quantum-Si Inc
QSI- Exchange
- Nasdaq
- Industry
- Measuring & Controlling Devices, NEC
- SEC CIK
- 0001816431
In the last 90 days, Quantum-Si Inc insiders filed 0 open-market purchases and 3 sales; 141 institutions reported holding it in 13F filings for Q2 2026, worth $46.8M in total; ARK Invest is the only superinvestor holding it.
13F holders, Q1 2022
Institutional positions in Quantum-Si Inc as of Mar 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 92
- 0 vs. Q4 2021
- Shares held
- 45.9M
- −1.20M (−2.5%) vs. Q4 2021
- Total value
- $215.0M
- −$155.6M (−42.0%) vs. Q4 2021
- New holders
- 20
- 32 more added
- Sold out
- 20
- 21 more reduced
1 institution that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2021: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting QSI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 141 | $46.8M |
| Q1 2026 | 157 | $49.0M |
| Q4 2025 | 135 | $74.3M |
| Q3 2025 | 125 | $91.3M |
| Q2 2025 | 135 | $126.2M |
| Q1 2025 | 137 | $69.3M |
| Q4 2024 | 121 | $144.8M |
| Q3 2024 | 107 | $45.9M |
| Q2 2024 | 99 | $56.1M |
| Q1 2024 | 95 | $104.1M |
| Q4 2023 | 91 | $113.6M |
| Q3 2023 | 96 | $90.5M |
| Q2 2023 | 91 | $78.5M |
| Q1 2023 | 100 | $76.5M |
| Q4 2022 | 105 | $90.9M |
| Q3 2022 | 102 | $130.8M |
| Q2 2022 | 102 | $139.6M |
| Q1 2022 | 92 | $215.0M |
| Q4 2021 | 93 | $370.6M |
| Q3 2021 | 73 | $372.4M |
| Q2 2021 | 72 | $534.9M |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2022
Shares, value and share of portfolio for each institution holding Quantum-Si Inc; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cutler Group LP | 170 | $0 | 0.00% | −130−43.3% | Reduced |
| Hantz Financial Services, Inc. | 30 | $0 | 0.00% | +30 | New |
| Koshinski Asset Management, Inc. | 200 | $936 | 0.00% | +200 | New |
| Quantbot Technologies LP | 500 | $2.00K | 0.00% | −1,594−76.1% | Reduced |
| First Manhattan Co | 600 | $2.00K | 0.00% | +200+50.0% | Added |
| Daiwa Securities Group Inc. | 343 | $2.00K | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 400 | $2.00K | 0.00% | +400 | New |
| American Portfolios Advisors | 450 | $2.11K | 0.00% | −1,000−69.0% | Reduced |
| US Bancorp | 800 | $4.00K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 600 | $6.00K | 0.00% | +600 | New |
| Wolff Wiese Magana LLC | 1,400 | $7.00K | 0.00% | −600−30.0% | Reduced |
| Ovata Capital Management Ltd | 1,400 | $7.00K | 0.00% | +1,400 | New |
| TD Waterhouse Canada Inc. | 2,025 | $9.88K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 3,160 | $15.0K | 0.00% | −738−18.9% | Reduced |
| Penserra Capital Management LLC | 4,345 | $20.0K | 0.00% | −1,090−20.1% | Reduced |
| Captrust Financial Advisors | 5,970 | $28.0K | 0.00% | +5,970 | New |
| Leonteq Securities AG | 7,500 | $34.0K | 0.00% | +7,500 | New |
| PEAK6 Investments LLC | 8,263 | $39.0K | 0.00% | +8,263 | New |
| MTM Investment Management, LLC | 10,775 | $50.0K | 0.02% | +10,775 | New |
| Two Sigma Securities, LLC | 10,826 | $51.0K | 0.01% | +10,826 | New |
| Virtu Financial LLC | 11,716 | $55.0K | 0.00% | −31,721−73.0% | Reduced |
| ProShare Advisors LLC | 12,158 | $57.0K | 0.00% | −4,385−26.5% | Reduced |
| Abacus Planning Group, Inc. | 12,510 | $59.0K | 0.02% | 00.0% | Unchanged |
| Principal Financial Group Inc | 13,196 | $62.0K | 0.00% | −743−5.3% | Reduced |
| Boothbay Fund Management, LLC | 13,526 | $63.0K | 0.00% | 00.0% | Unchanged |
| Procyon Private Wealth Partners, LLC | 13,671 | $64.0K | 0.01% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 13,733 | $64.0K | 0.00% | +3,481+34.0% | Added |
| Old Mission Capital LLC | 13,862 | $65.0K | 0.00% | +13,862 | New |
| JPMorgan Chase & Co | 14,170 | $67.0K | 0.00% | +3,379+31.3% | Added |
| Raymond James & Associates | 15,000 | $70.0K | 0.00% | +15,000 | New |
| UBS Group AG | 15,685 | $74.0K | 0.00% | −10,361−39.8% | Reduced |
| Sciencast Management LP | 17,300 | $76.0K | 0.02% | +17,300 | New |
| AQR Capital Management LLC | 16,434 | $77.0K | 0.00% | +16,434 | New |
| Teacher Retirement System of Texas | 16,941 | $79.0K | 0.00% | +1,404+9.0% | Added |
| Dynamic Technology Lab Private Ltd | 17,982 | $84.0K | 0.01% | +5,356+42.4% | Added |
| D. E. Shaw & Co., Inc. | 18,886 | $88.0K | 0.00% | −13,245−41.2% | Reduced |
| Legal & General Group Plc | 19,560 | $91.0K | 0.00% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 21,967 | $102.0K | 0.00% | +100.0% | Added |
| Arizona State Retirement System | 22,229 | $104.0K | 0.00% | +287+1.3% | Added |
| Mutual Advisors, LLC | 22,544 | $106.0K | 0.01% | +22,544 | New |
| Wells Fargo & Company | 24,840 | $116.0K | 0.00% | +2,200+9.7% | Added |
| Cambridge Investment Research Advisors, Inc. | 24,957 | $117.0K | 0.00% | +1,700+7.3% | Added |
| Citigroup Inc | 24,938 | $117.0K | 0.00% | +19,830+388.2% | Added |
| Guidance Point Advisors, LLC | 25,742 | $120.0K | 0.05% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 29,825 | $140.0K | 0.00% | +28,167+1,698.9% | Added |
| Barclays PLC | 31,838 | $149.0K | 0.00% | +31,838 | New |
| Charles Schwab Investment Management Inc | 32,018 | $150.0K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 32,200 | $151.0K | 0.00% | 00.0% | Unchanged |
| Red Wave Investments LLC | 37,000 | $173.0K | 0.06% | 00.0% | Unchanged |
| Citadel Advisors LLC | 41,685 | $195.0K | 0.00% | +20,271+94.7% | Added |
| Bank of America Corp | 49,192 | $230.0K | 0.00% | +23,647+92.6% | Added |
| Intrepid Family Office LLC | 50,000 | $234.0K | 0.38% | −25,000−33.3% | Reduced |
| Credit Suisse AG | 51,613 | $241.0K | 0.00% | +3,409+7.1% | Added |
| Royal Bank of Canada | 59,172 | $277.0K | 0.00% | +26,383+80.5% | Added |
| Balyasny Asset Management LLC | 60,807 | $285.0K | 0.00% | +60,807 | New |
| HRT Financial LP | 63,057 | $295.0K | 0.00% | −200,257−76.1% | Reduced |
| Westchester Capital Management, LLC | 64,964 | $304.0K | 0.01% | 00.0% | Unchanged |
| Jane Street Group, LLC | 68,248 | $319.0K | 0.00% | +68,248 | New |
| California State Teachers Retirement System | 69,618 | $326.0K | 0.00% | +767+1.1% | Added |
| Raymond James Financial Services Advisors, Inc. | 81,830 | $383.0K | 0.00% | +51,386+168.8% | Added |
| UBS Asset Management Americas Inc | 82,500 | $386.1K | 0.00% | 00.0% | Unchanged |
| Clearline Capital LP | 92,468 | $433.0K | 0.06% | +12,988+16.3% | Added |
| Squarepoint Ops LLC | 95,080 | $445.0K | 0.00% | +74,508+362.2% | Added |
| D.A. Davidson & Co. | 102,500 | $480.0K | 0.01% | +82,500+412.5% | Added |
| Morgan Stanley | 103,022 | $481.0K | 0.00% | +18,486+21.9% | Added |
| TD Asset Management Inc | 110,662 | $518.0K | 0.00% | −40,000−26.5% | Reduced |
| Manufacturers Life Insurance Company, The | 113,007 | $565.0K | 0.00% | +113,007 | New |
| Ikarian Capital, LLC | 157,363 | $736.0K | 0.22% | +12,957+9.0% | Added |
| Northern Trust Corp | 164,881 | $772.0K | 0.00% | −3,997−2.4% | Reduced |
| Swiss National Bank | 194,500 | $910.0K | 0.00% | +15,100+8.4% | Added |
| Cubist Systematic Strategies, LLC | 196,705 | $921.0K | 0.01% | +90,269+84.8% | Added |
| ExodusPoint Capital Management, LP | 213,552 | $999.0K | 0.01% | +190,018+807.4% | Added |
| State Street Corp | 401,715 | $1.88M | 0.00% | +10,901+2.8% | Added |
| Susquehanna International Group, LLP | 450,850 | $2.11M | 0.00% | +340,252+307.6% | Added |
| Alyeska Investment Group, L.P. | 456,978 | $2.14M | 0.02% | −44,778−8.9% | Reduced |
| Neumann Advisory Hong Kong Ltd | 462,733 | $2.17M | 0.48% | −30,000−6.1% | Reduced |
| Millennium Management LLC | 618,289 | $2.89M | 0.00% | +618,289 | New |
| Rubric Capital Management LP | 672,385 | $3.15M | 0.15% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 723,727 | $3.39M | 0.02% | −21,442−2.9% | Reduced |
| Fosun International Ltd | 743,935 | $3.48M | 0.30% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 787,786 | $3.69M | 0.00% | +261,903+49.8% | Added |
| Geode Capital Management, LLC | 797,207 | $3.73M | 0.00% | +30,297+4.0% | Added |
| Price T Rowe Associates Inc | 1,209,736 | $5.66M | 0.00% | −1,149,514−48.7% | Reduced |
| Nikko Asset Management Americas, Inc. | 1,213,029 | $5.68M | 0.04% | −94,391−7.2% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 1,400,000 | $6.55M | 0.15% | 00.0% | Unchanged |
| BlackRock Inc. | 1,562,495 | $7.31M | 0.00% | +29,793+1.9% | Added |
| Foresite Capital Opportunity Management V, LLC | 1,598,125 | $7.48M | 10.47% | 00.0% | Unchanged |
| Foresite Capital Management V, LLC | 2,342,061 | $11.0M | 4.48% | 00.0% | Unchanged |
| Vanguard Group Inc | 3,934,007 | $18.4M | 0.00% | +2,134,692+118.6% | Added |
| Foresite Capital Management IV, LLC | 4,463,619 | $20.9M | 5.84% | 00.0% | Unchanged |
| Glenview Capital Management, LLC | 5,778,299 | $27.0M | 0.55% | −221,701−3.7% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 13,373,557 | $62.6M | 0.26% | +306,407+2.3% | Added |
| Capital International Investors | 0 | $0 | 0.00% | −2,500,000−100.0% | Sold out |
| Sumitomo Mitsui Trust Holdings, Inc. | 0 | $0 | 0.00% | −1,307,420−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −77,816−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −61,794−100.0% | Sold out |
| Asset Management Corp | 0 | $0 | 0.00% | −31,011−100.0% | Sold out |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0 | $0 | 0.00% | −23,634−100.0% | Sold out |
| Private Advisor Group, LLC | 0 | $0 | 0.00% | −23,385−100.0% | Sold out |
| Paloma Partners Management Co | 0 | $0 | 0.00% | −22,975−100.0% | Sold out |