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, Q3 2023
Institutional positions in Quantum-Si Inc as of Sep 30, 2023. 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
- 96
- +5 vs. Q2 2023
- Shares held
- 54.5M
- +10.7M (+24.4%) vs. Q2 2023
- Total value
- $90.5M
- +$12.0M (+15.3%) vs. Q2 2023
- New holders
- 20
- 32 more added
- Sold out
- 15
- 16 more reduced
Compare with Q2 2023: 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, Q3 2023
Shares, value and share of portfolio for each institution holding Quantum-Si Inc; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Harbour Investments, Inc. | 20 | $33 | 0.00% | +20 | New |
| Nisa Investment Advisors, LLC | 44 | $73 | 0.00% | +6+15.8% | Added |
| Federation des caisses Desjardins du Quebec | 50 | $83 | 0.00% | 00.0% | Unchanged |
| Eagle Bay Advisors LLC | 277 | $460 | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 300 | $471 | 0.00% | +300 | New |
| Russell Investments Group, Ltd. | 311 | $516 | 0.00% | +311 | New |
| Comerica Bank | 513 | $852 | 0.00% | +513 | New |
| First Manhattan Co | 600 | $996 | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 343 | $1.00K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 407 | $1.00K | 0.00% | 00.0% | Unchanged |
| Johnson Midwest Financial, LLC | 770 | $1.28K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 800 | $1.33K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 836 | $1.39K | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 1,000 | $1.66K | 0.00% | +1,000 | New |
| Archer Investment Corp | 1,399 | $2.32K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 1,628 | $2.70K | 0.00% | −31,535−95.1% | Reduced |
| Level Financial Advisors, Inc. | 2,500 | $4.15K | 0.00% | +2,500 | New |
| China Universal Asset Management Co., Ltd. | 3,127 | $5.19K | 0.00% | +1,534+96.3% | Added |
| Advisor Group Holdings, Inc. | 5,376 | $8.92K | 0.00% | +3,206+147.7% | Added |
| Metropolitan Life Insurance Co | 5,570 | $9.25K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 6,747 | $11.2K | 0.00% | +3,213+90.9% | Added |
| Leonteq Securities AG | 7,500 | $12.4K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 9,294 | $15.4K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 9,450 | $16.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 9,906 | $16.4K | 0.00% | +3,056+44.6% | Added |
| TriaGen Wealth Management LLC | 10,000 | $16.6K | 0.01% | +10,000 | New |
| Victory Capital Management Inc | 10,840 | $18.0K | 0.00% | +470+4.5% | Added |
| FSA Wealth Management LLC | 11,150 | $18.5K | 0.01% | 00.0% | Unchanged |
| Mariner, LLC | 11,263 | $18.7K | 0.00% | +11,263 | New |
| Neuberger Berman Group LLC | 11,330 | $18.8K | 0.00% | +55+0.5% | Added |
| Pitcairn Co | 11,792 | $19.6K | 0.00% | 00.0% | Unchanged |
| Stratos Wealth Advisors, LLC | 11,810 | $19.6K | 0.00% | +11,810 | New |
| Procyon Private Wealth Partners, LLC | 13,671 | $22.7K | 0.00% | 00.0% | Unchanged |
| Flagship Private Wealth, LLC | 14,158 | $23.5K | 0.02% | 00.0% | Unchanged |
| Royal Bank of Canada | 17,133 | $28.0K | 0.00% | +1,272+8.0% | Added |
| Commonwealth Equity Services, LLC | 16,774 | $28.0K | 0.00% | +16,774 | New |
| GWM Advisors LLC | 17,742 | $29.5K | 0.00% | +17,250+3,506.1% | Added |
| Wealth Management Associates, Inc. | 17,900 | $29.7K | 0.02% | −8,000−30.9% | Reduced |
| Two Sigma Advisers, LP | 19,400 | $32.2K | 0.00% | +19,400 | New |
| Shay Capital LLC | 19,537 | $32.4K | 0.01% | −64,161−76.7% | Reduced |
| STRS Ohio | 21,300 | $35.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 21,179 | $35.2K | 0.00% | +249+1.2% | Added |
| Round Rock Advisors, LLC | 21,885 | $36.3K | 0.01% | 00.0% | Unchanged |
| California State Teachers Retirement System | 22,450 | $37.3K | 0.00% | −10,965−32.8% | Reduced |
| Ameriprise Financial Inc | 23,744 | $39.4K | 0.00% | +23,744 | New |
| Guidance Point Advisors, LLC | 25,742 | $42.7K | 0.02% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 25,867 | $42.9K | 0.00% | +11,457+79.5% | Added |
| Pathstone Family Office, LLC | 26,039 | $43.2K | 0.00% | +26,039 | New |
| New York State Common Retirement Fund | 26,272 | $43.6K | 0.00% | +362+1.4% | Added |
| Jane Street Group, LLC | 27,785 | $46.1K | 0.00% | +486+1.8% | Added |
| American Century Companies Inc | 28,169 | $46.8K | 0.00% | +28,169 | New |
| Raymond James Financial Services Advisors, Inc. | 30,500 | $50.6K | 0.00% | −3,459−10.2% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 30,605 | $51.0K | 0.00% | 00.0% | Unchanged |
| Virtu Financial LLC | 35,358 | $59.0K | 0.01% | +35,358 | New |
| State Board of Administration of Florida Retirement System | 35,636 | $59.2K | 0.00% | +35,636 | New |
| Red Wave Investments LLC | 37,000 | $61.4K | 0.03% | 00.0% | Unchanged |
| Voya Investment Management LLC | 41,741 | $69.3K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 42,276 | $70.2K | 0.00% | −9,303−18.0% | Reduced |
| Green Alpha Advisors, LLC | 42,622 | $70.8K | 0.05% | +42,622 | New |
| SG Americas Securities, LLC | 46,566 | $77.0K | 0.00% | +46,566 | New |
| Manufacturers Life Insurance Company, The | 46,726 | $77.6K | 0.00% | −2,282−4.7% | Reduced |
| Deutsche Bank AG | 47,699 | $79.2K | 0.00% | −14,388−23.2% | Reduced |
| Principal Financial Group Inc | 47,760 | $79.3K | 0.00% | +6,064+14.5% | Added |
| Barclays PLC | 47,938 | $79.6K | 0.00% | −1,839−3.7% | Reduced |
| American International Group, Inc. | 50,777 | $84.3K | 0.00% | +2,428+5.0% | Added |
| Price T Rowe Associates Inc | 52,045 | $87.0K | 0.00% | +4,664+9.8% | Added |
| MetLife Investment Management | 53,683 | $89.1K | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 55,200 | $91.6K | 0.00% | +9,460+20.7% | Added |
| UBS Group AG | 60,225 | $100.0K | 0.00% | −1,761−2.8% | Reduced |
| Winton Group Ltd | 62,058 | $103.0K | 0.01% | +62,058 | New |
| Two Sigma Investments, LP | 82,791 | $137.4K | 0.00% | +45,700+123.2% | Added |
| JPMorgan Chase & Co | 92,060 | $152.8K | 0.00% | +10,135+12.4% | Added |
| General American Investors Co Inc | 119,250 | $198.0K | 0.02% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 120,296 | $199.7K | 0.00% | +27,114+29.1% | Added |
| Bank of America Corp | 142,481 | $236.5K | 0.00% | +17,238+13.8% | Added |
| Rhumbline Advisers | 142,840 | $237.1K | 0.00% | +4,088+2.9% | Added |
| Putnam Investments LLC | 157,589 | $261.6K | 0.00% | +157,589 | New |
| Neumann Advisory Hong Kong Ltd | 166,198 | $276.0K | 0.11% | −26,659−13.8% | Reduced |
| Goldman Sachs Group Inc | 169,314 | $281.1K | 0.00% | −296,756−63.7% | Reduced |
| Invesco Ltd. | 179,194 | $297.5K | 0.00% | +1,247+0.7% | Added |
| Morgan Stanley | 271,067 | $450.0K | 0.00% | +7,970+3.0% | Added |
| Charles Schwab Investment Management Inc | 276,955 | $459.7K | 0.00% | +15,378+5.9% | Added |
| Nuveen Asset Management, LLC | 288,885 | $479.5K | 0.00% | −296−0.1% | Reduced |
| Knollwood Investment Advisory, LLC | 300,000 | $498.0K | 0.23% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 346,956 | $575.9K | 0.00% | −8,808−2.5% | Reduced |
| Bridgeway Capital Management, LLC | 356,700 | $592.1K | 0.01% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 419,366 | $696.1K | 0.01% | −289,669−40.9% | Reduced |
| Fosun International Ltd | 743,935 | $1.23M | 0.20% | 00.0% | Unchanged |
| Northern Trust Corp | 822,762 | $1.37M | 0.00% | +43,920+5.6% | Added |
| Geode Capital Management, LLC | 2,021,594 | $3.36M | 0.00% | +162,864+8.8% | Added |
| State Street Corp | 2,193,418 | $3.64M | 0.00% | +110,125+5.3% | Added |
| Vanguard Group Inc | 5,165,196 | $8.57M | 0.00% | +10,192+0.2% | Added |
| BlackRock Inc. | 7,013,029 | $11.6M | 0.00% | −88,949−1.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 8,532,917 | $14.2M | 0.01% | +6,905,932+424.5% | Added |
| Nikko Asset Management Americas, Inc. | 8,532,917 | $14.2M | 0.17% | +6,905,932+424.5% | Added |
| ARK Investment Management LLCSuperinvestorARK Invest | 14,448,217 | $24.0M | 0.18% | +1,693,686+13.3% | Added |
| Glenview Capital Management, LLC | 0 | $0 | 0.00% | −2,415,990−100.0% | Sold out |
| Foresite Capital Management V, LLC | 0 | $0 | 0.00% | −924,404−100.0% | Sold out |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −797,500−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −223,256−100.0% | Sold out |